Commit b7104231af68c26b850325748a64f15119a2dd69 | zig

build.zig+1-1

...	...	@@ -304,7 +304,7 @@ pub fn build(b: *std.Build) !void {
304	304	if (enable_llvm) {
305	305	const cmake_cfg = if (static_llvm) null else blk: {
306	306	if (findConfigH(b, config_h_path_option)) \|config_h_path\| {
307		const file_contents = fs.cwd().readFileAlloc(b.allocator, config_h_path, max_config_h_bytes) catch unreachable;
	307	const file_contents = fs.cwd().readFileAlloc(config_h_path, b.allocator, .limited(max_config_h_bytes)) catch unreachable;
308	308	break :blk parseConfigH(b, file_contents);
309	309	} else {
310	310	std.log.warn("config.h could not be located automatically. Consider providing it explicitly via \"-Dconfig_h\"", .{});

lib/compiler/aro/aro/Attribute/names.zig+2-3

...	...	@@ -117,8 +117,7 @@ pub fn nameFromUniqueIndex(index: u16, buf: []u8) []u8 {
117	117
118	118	var node_index: u16 = 0;
119	119	var count: u16 = index;
120		var fbs = std.io.fixedBufferStream(buf);
121		const w = fbs.writer();
	120	var w: std.Io.Writer = .fixed(buf);
122	121
123	122	while (true) {
124	123	var sibling_index = dafsa[node_index].child_index;
...	...	@@ -140,7 +139,7 @@ pub fn nameFromUniqueIndex(index: u16, buf: []u8) []u8 {
140	139	if (count == 0) break;
141	140	}
142	141
143		return fbs.getWritten();
	142	return w.buffered();
144	143	}
145	144
146	145	const Node = packed struct(u32) {

lib/compiler/aro/aro/Compilation.zig+6-24

...	...	@@ -1308,13 +1308,7 @@ fn addSourceFromPathExtra(comp: *Compilation, path: []const u8, kind: Source.Kin
1308	1308	return error.FileNotFound;
1309	1309	}
1310	1310
1311		const file = try comp.cwd.openFile(path, .{});
1312		defer file.close();
1313
1314		const contents = file.readToEndAlloc(comp.gpa, std.math.maxInt(u32)) catch \|err\| switch (err) {
1315		error.FileTooBig => return error.StreamTooLong,
1316		else => \|e\| return e,
1317		};
	1311	const contents = try comp.cwd.readFileAlloc(path, comp.gpa, .limited(std.math.maxInt(u32)));
1318	1312	errdefer comp.gpa.free(contents);
1319	1313
1320	1314	return comp.addSourceFromOwnedBuffer(contents, path, kind);
...	...	@@ -1433,19 +1427,7 @@ fn getFileContents(comp: *Compilation, path: []const u8, limit: ?u32) ![]const u
1433	1427	return error.FileNotFound;
1434	1428	}
1435	1429
1436		const file = try comp.cwd.openFile(path, .{});
1437		defer file.close();
1438
1439		var buf = std.array_list.Managed(u8).init(comp.gpa);
1440		defer buf.deinit();
1441
1442		const max = limit orelse std.math.maxInt(u32);
1443		file.deprecatedReader().readAllArrayList(&buf, max) catch \|e\| switch (e) {
1444		error.StreamTooLong => if (limit == null) return e,
1445		else => return e,
1446		};
1447
1448		return buf.toOwnedSlice();
	1430	return comp.cwd.readFileAlloc(path, comp.gpa, .limited(limit orelse std.math.maxInt(u32)));
1449	1431	}
1450	1432
1451	1433	pub fn findEmbed(
...	...	@@ -1645,8 +1627,8 @@ test "addSourceFromReader" {
1645	1627	var comp = Compilation.init(std.testing.allocator, std.fs.cwd());
1646	1628	defer comp.deinit();
1647	1629
1648		var buf_reader = std.io.fixedBufferStream(str);
1649		const source = try comp.addSourceFromReader(buf_reader.reader(), "path", .user);
	1630	var buf_reader: std.Io.Reader = .fixed(str);
	1631	const source = try comp.addSourceFromReader(&buf_reader, "path", .user);
1650	1632
1651	1633	try std.testing.expectEqualStrings(expected, source.buf);
1652	1634	try std.testing.expectEqual(warning_count, @as(u32, @intCast(comp.diagnostics.list.items.len)));
...	...	@@ -1727,8 +1709,8 @@ test "ignore BOM at beginning of file" {
1727	1709	var comp = Compilation.init(std.testing.allocator, std.fs.cwd());
1728	1710	defer comp.deinit();
1729	1711
1730		var buf_reader = std.io.fixedBufferStream(buf);
1731		const source = try comp.addSourceFromReader(buf_reader.reader(), "file.c", .user);
	1712	var buf_reader: std.Io.Reader = .fixed(buf);
	1713	const source = try comp.addSourceFromReader(&buf_reader, "file.c", .user);
1732	1714	const expected_output = if (mem.startsWith(u8, buf, BOM)) buf[BOM.len..] else buf;
1733	1715	try std.testing.expectEqualStrings(expected_output, source.buf);
1734	1716	}

lib/compiler/aro/aro/Diagnostics.zig+7-7

...	...	@@ -322,14 +322,14 @@ pub fn addExtra(
322	322	return error.FatalError;
323	323	}
324	324
325		pub fn render(comp: *Compilation, config: std.io.tty.Config) void {
	325	pub fn render(comp: *Compilation, config: std.Io.tty.Config) void {
326	326	if (comp.diagnostics.list.items.len == 0) return;
327	327	var buffer: [1000]u8 = undefined;
328	328	var m = defaultMsgWriter(config, &buffer);
329	329	defer m.deinit();
330	330	renderMessages(comp, &m);
331	331	}
332		pub fn defaultMsgWriter(config: std.io.tty.Config, buffer: []u8) MsgWriter {
	332	pub fn defaultMsgWriter(config: std.Io.tty.Config, buffer: []u8) MsgWriter {
333	333	return MsgWriter.init(config, buffer);
334	334	}
335	335
...	...	@@ -451,7 +451,7 @@ pub fn renderMessage(comp: *Compilation, m: anytype, msg: Message) void {
451	451	},
452	452	.normalized => {
453	453	const f = struct {
454		pub fn f(bytes: []const u8, writer: *std.io.Writer) std.io.Writer.Error!void {
	454	pub fn f(bytes: []const u8, writer: *std.Io.Writer) std.Io.Writer.Error!void {
455	455	var it: std.unicode.Utf8Iterator = .{
456	456	.bytes = bytes,
457	457	.i = 0,
...	...	@@ -526,10 +526,10 @@ fn tagKind(d: *Diagnostics, tag: Tag, langopts: LangOpts) Kind {
526	526	}
527	527
528	528	const MsgWriter = struct {
529		writer: *std.io.Writer,
530		config: std.io.tty.Config,
	529	writer: *std.Io.Writer,
	530	config: std.Io.tty.Config,
531	531
532		fn init(config: std.io.tty.Config, buffer: []u8) MsgWriter {
	532	fn init(config: std.Io.tty.Config, buffer: []u8) MsgWriter {
533	533	return .{
534	534	.writer = std.debug.lockStderrWriter(buffer),
535	535	.config = config,
...	...	@@ -549,7 +549,7 @@ const MsgWriter = struct {
549	549	m.writer.writeAll(msg) catch {};
550	550	}
551	551
552		fn setColor(m: *MsgWriter, color: std.io.tty.Color) void {
	552	fn setColor(m: *MsgWriter, color: std.Io.tty.Color) void {
553	553	m.config.setColor(m.writer, color) catch {};
554	554	}
555	555

lib/compiler/aro/aro/Driver.zig+3-3

...	...	@@ -519,8 +519,8 @@ fn option(arg: []const u8, name: []const u8) ?[]const u8 {
519	519
520	520	fn addSource(d: *Driver, path: []const u8) !Source {
521	521	if (mem.eql(u8, "-", path)) {
522		const stdin = std.fs.File.stdin().deprecatedReader();
523		const input = try stdin.readAllAlloc(d.comp.gpa, std.math.maxInt(u32));
	522	var stdin_reader: std.fs.File.Reader = .initStreaming(.stdin(), &.{});
	523	const input = try stdin_reader.interface.allocRemaining(d.comp.gpa, .limited(std.math.maxInt(u32)));
524	524	defer d.comp.gpa.free(input);
525	525	return d.comp.addSourceFromBuffer("<stdin>", input);
526	526	}
...	...	@@ -544,7 +544,7 @@ pub fn renderErrors(d: *Driver) void {
544	544	Diagnostics.render(d.comp, d.detectConfig(std.fs.File.stderr()));
545	545	}
546	546
547		pub fn detectConfig(d: *Driver, file: std.fs.File) std.io.tty.Config {
	547	pub fn detectConfig(d: *Driver, file: std.fs.File) std.Io.tty.Config {
548	548	if (d.color == true) return .escape_codes;
549	549	if (d.color == false) return .no_color;
550	550

lib/compiler/aro/aro/Tree.zig+8-8

...	...	@@ -800,7 +800,7 @@ pub fn nodeLoc(tree: *const Tree, node: NodeIndex) ?Source.Location {
800	800	return tree.tokens.items(.loc)[@intFromEnum(tok_i)];
801	801	}
802	802
803		pub fn dump(tree: *const Tree, config: std.io.tty.Config, writer: anytype) !void {
	803	pub fn dump(tree: *const Tree, config: std.Io.tty.Config, writer: anytype) !void {
804	804	const mapper = tree.comp.string_interner.getFastTypeMapper(tree.comp.gpa) catch tree.comp.string_interner.getSlowTypeMapper();
805	805	defer mapper.deinit(tree.comp.gpa);
806	806
...	...	@@ -855,17 +855,17 @@ fn dumpNode(
855	855	node: NodeIndex,
856	856	level: u32,
857	857	mapper: StringInterner.TypeMapper,
858		config: std.io.tty.Config,
	858	config: std.Io.tty.Config,
859	859	w: anytype,
860	860	) !void {
861	861	const delta = 2;
862	862	const half = delta / 2;
863		const TYPE = std.io.tty.Color.bright_magenta;
864		const TAG = std.io.tty.Color.bright_cyan;
865		const IMPLICIT = std.io.tty.Color.bright_blue;
866		const NAME = std.io.tty.Color.bright_red;
867		const LITERAL = std.io.tty.Color.bright_green;
868		const ATTRIBUTE = std.io.tty.Color.bright_yellow;
	863	const TYPE = std.Io.tty.Color.bright_magenta;
	864	const TAG = std.Io.tty.Color.bright_cyan;
	865	const IMPLICIT = std.Io.tty.Color.bright_blue;
	866	const NAME = std.Io.tty.Color.bright_red;
	867	const LITERAL = std.Io.tty.Color.bright_green;
	868	const ATTRIBUTE = std.Io.tty.Color.bright_yellow;
869	869	std.debug.assert(node != .none);
870	870
871	871	const tag = tree.nodes.items(.tag)[@intFromEnum(node)];

lib/compiler/aro/aro/target.zig+2-3

...	...	@@ -578,8 +578,7 @@ pub fn toLLVMTriple(target: std.Target, buf: []u8) []const u8 {
578	578	// 64 bytes is assumed to be large enough to hold any target triple; increase if necessary
579	579	std.debug.assert(buf.len >= 64);
580	580
581		var stream = std.io.fixedBufferStream(buf);
582		const writer = stream.writer();
	581	var writer: std.Io.Writer = .fixed(buf);
583	582
584	583	const llvm_arch = switch (target.cpu.arch) {
585	584	.arm => "arm",
...	...	@@ -719,7 +718,7 @@ pub fn toLLVMTriple(target: std.Target, buf: []u8) []const u8 {
719	718	.ohoseabi => "ohoseabi",
720	719	};
721	720	writer.writeAll(llvm_abi) catch unreachable;
722		return stream.getWritten();
	721	return writer.buffered();
723	722	}
724	723
725	724	test "alignment functions - smoke test" {

lib/compiler/aro/backend/Ir.zig+12-12

...	...	@@ -374,21 +374,21 @@ pub fn deinit(ir: *Ir, gpa: std.mem.Allocator) void {
374	374	ir.* = undefined;
375	375	}
376	376
377		const TYPE = std.io.tty.Color.bright_magenta;
378		const INST = std.io.tty.Color.bright_cyan;
379		const REF = std.io.tty.Color.bright_blue;
380		const LITERAL = std.io.tty.Color.bright_green;
381		const ATTRIBUTE = std.io.tty.Color.bright_yellow;
	377	const TYPE = std.Io.tty.Color.bright_magenta;
	378	const INST = std.Io.tty.Color.bright_cyan;
	379	const REF = std.Io.tty.Color.bright_blue;
	380	const LITERAL = std.Io.tty.Color.bright_green;
	381	const ATTRIBUTE = std.Io.tty.Color.bright_yellow;
382	382
383	383	const RefMap = std.AutoArrayHashMap(Ref, void);
384	384
385		pub fn dump(ir: *const Ir, gpa: Allocator, config: std.io.tty.Config, w: anytype) !void {
	385	pub fn dump(ir: *const Ir, gpa: Allocator, config: std.Io.tty.Config, w: anytype) !void {
386	386	for (ir.decls.keys(), ir.decls.values()) \|name, *decl\| {
387	387	try ir.dumpDecl(decl, gpa, name, config, w);
388	388	}
389	389	}
390	390
391		fn dumpDecl(ir: const Ir, decl: const Decl, gpa: Allocator, name: []const u8, config: std.io.tty.Config, w: anytype) !void {
	391	fn dumpDecl(ir: const Ir, decl: const Decl, gpa: Allocator, name: []const u8, config: std.Io.tty.Config, w: anytype) !void {
392	392	const tags = decl.instructions.items(.tag);
393	393	const data = decl.instructions.items(.data);
394	394
...	...	@@ -609,7 +609,7 @@ fn dumpDecl(ir: const Ir, decl: const Decl, gpa: Allocator, name: []const u8,
609	609	try w.writeAll("}\n\n");
610	610	}
611	611
612		fn writeType(ir: Ir, ty_ref: Interner.Ref, config: std.io.tty.Config, w: anytype) !void {
	612	fn writeType(ir: Ir, ty_ref: Interner.Ref, config: std.Io.tty.Config, w: anytype) !void {
613	613	const ty = ir.interner.get(ty_ref);
614	614	try config.setColor(w, TYPE);
615	615	switch (ty) {
...	...	@@ -639,7 +639,7 @@ fn writeType(ir: Ir, ty_ref: Interner.Ref, config: std.io.tty.Config, w: anytype
639	639	}
640	640	}
641	641
642		fn writeValue(ir: Ir, val: Interner.Ref, config: std.io.tty.Config, w: anytype) !void {
	642	fn writeValue(ir: Ir, val: Interner.Ref, config: std.Io.tty.Config, w: anytype) !void {
643	643	try config.setColor(w, LITERAL);
644	644	const key = ir.interner.get(val);
645	645	switch (key) {
...	...	@@ -655,7 +655,7 @@ fn writeValue(ir: Ir, val: Interner.Ref, config: std.io.tty.Config, w: anytype)
655	655	}
656	656	}
657	657
658		fn writeRef(ir: Ir, decl: const Decl, ref_map: RefMap, ref: Ref, config: std.io.tty.Config, w: anytype) !void {
	658	fn writeRef(ir: Ir, decl: const Decl, ref_map: RefMap, ref: Ref, config: std.Io.tty.Config, w: anytype) !void {
659	659	assert(ref != .none);
660	660	const index = @intFromEnum(ref);
661	661	const ty_ref = decl.instructions.items(.ty)[index];
...	...	@@ -678,7 +678,7 @@ fn writeRef(ir: Ir, decl: const Decl, ref_map: RefMap, ref: Ref, config: std.i
678	678	try w.print(" %{d}", .{ref_index});
679	679	}
680	680
681		fn writeNewRef(ir: Ir, decl: const Decl, ref_map: RefMap, ref: Ref, config: std.io.tty.Config, w: anytype) !void {
	681	fn writeNewRef(ir: Ir, decl: const Decl, ref_map: RefMap, ref: Ref, config: std.Io.tty.Config, w: anytype) !void {
682	682	try ref_map.put(ref, {});
683	683	try w.writeAll(" ");
684	684	try ir.writeRef(decl, ref_map, ref, config, w);
...	...	@@ -687,7 +687,7 @@ fn writeNewRef(ir: Ir, decl: const Decl, ref_map: RefMap, ref: Ref, config: st
687	687	try config.setColor(w, INST);
688	688	}
689	689
690		fn writeLabel(decl: const Decl, label_map: RefMap, ref: Ref, config: std.io.tty.Config, w: anytype) !void {
	690	fn writeLabel(decl: const Decl, label_map: RefMap, ref: Ref, config: std.Io.tty.Config, w: anytype) !void {
691	691	assert(ref != .none);
692	692	const index = @intFromEnum(ref);
693	693	const label = decl.instructions.items(.data)[index].label;

lib/compiler/aro_translate_c.zig+1-1

...	...	@@ -1783,7 +1783,7 @@ fn renderErrorsAndExit(comp: *aro.Compilation) noreturn {
1783	1783	defer std.process.exit(1);
1784	1784
1785	1785	var buffer: [1000]u8 = undefined;
1786		var writer = aro.Diagnostics.defaultMsgWriter(std.io.tty.detectConfig(std.fs.File.stderr()), &buffer);
	1786	var writer = aro.Diagnostics.defaultMsgWriter(std.Io.tty.detectConfig(std.fs.File.stderr()), &buffer);
1787	1787	defer writer.deinit(); // writer deinit must run before exit so that stderr is flushed
1788	1788
1789	1789	var saw_error = false;

lib/compiler/build_runner.zig+10-10

...	...	@@ -1,7 +1,6 @@
1	1	const std = @import("std");
2	2	const builtin = @import("builtin");
3	3	const assert = std.debug.assert;
4		const io = std.io;
5	4	const fmt = std.fmt;
6	5	const mem = std.mem;
7	6	const process = std.process;
...	...	@@ -11,8 +10,9 @@ const Watch = std.Build.Watch;
11	10	const WebServer = std.Build.WebServer;
12	11	const Allocator = std.mem.Allocator;
13	12	const fatal = std.process.fatal;
14		const Writer = std.io.Writer;
	13	const Writer = std.Io.Writer;
15	14	const runner = @This();
	15	const tty = std.Io.tty;
16	16
17	17	pub const root = @import("@build");
18	18	pub const dependencies = @import("@dependencies");
...	...	@@ -576,7 +576,7 @@ const Run = struct {
576	576
577	577	claimed_rss: usize,
578	578	summary: Summary,
579		ttyconf: std.io.tty.Config,
	579	ttyconf: tty.Config,
580	580	stderr: File,
581	581
582	582	fn cleanExit(run: Run) void {
...	...	@@ -819,7 +819,7 @@ const PrintNode = struct {
819	819	last: bool = false,
820	820	};
821	821
822		fn printPrefix(node: PrintNode, stderr: Writer, ttyconf: std.io.tty.Config) !void {
	822	fn printPrefix(node: PrintNode, stderr: Writer, ttyconf: tty.Config) !void {
823	823	const parent = node.parent orelse return;
824	824	if (parent.parent == null) return;
825	825	try printPrefix(parent, stderr, ttyconf);
...	...	@@ -833,7 +833,7 @@ fn printPrefix(node: PrintNode, stderr: Writer, ttyconf: std.io.tty.Config) !v
833	833	}
834	834	}
835	835
836		fn printChildNodePrefix(stderr: *Writer, ttyconf: std.io.tty.Config) !void {
	836	fn printChildNodePrefix(stderr: *Writer, ttyconf: tty.Config) !void {
837	837	try stderr.writeAll(switch (ttyconf) {
838	838	.no_color, .windows_api => "+- ",
839	839	.escape_codes => "\x1B\x28\x30\x6d\x71\x1B\x28\x42 ", // └─
...	...	@@ -843,7 +843,7 @@ fn printChildNodePrefix(stderr: *Writer, ttyconf: std.io.tty.Config) !void {
843	843	fn printStepStatus(
844	844	s: *Step,
845	845	stderr: *Writer,
846		ttyconf: std.io.tty.Config,
	846	ttyconf: tty.Config,
847	847	run: *const Run,
848	848	) !void {
849	849	switch (s.state) {
...	...	@@ -923,7 +923,7 @@ fn printStepStatus(
923	923	fn printStepFailure(
924	924	s: *Step,
925	925	stderr: *Writer,
926		ttyconf: std.io.tty.Config,
	926	ttyconf: tty.Config,
927	927	) !void {
928	928	if (s.result_error_bundle.errorMessageCount() > 0) {
929	929	try ttyconf.setColor(stderr, .red);
...	...	@@ -977,7 +977,7 @@ fn printTreeStep(
977	977	s: *Step,
978	978	run: *const Run,
979	979	stderr: *Writer,
980		ttyconf: std.io.tty.Config,
	980	ttyconf: tty.Config,
981	981	parent_node: *PrintNode,
982	982	step_stack: std.AutoArrayHashMapUnmanaged(Step, void),
983	983	) !void {
...	...	@@ -1494,9 +1494,9 @@ fn uncleanExit() error{UncleanExit} {
1494	1494	const Color = std.zig.Color;
1495	1495	const Summary = enum { all, new, failures, none };
1496	1496
1497		fn get_tty_conf(color: Color, stderr: File) std.io.tty.Config {
	1497	fn get_tty_conf(color: Color, stderr: File) tty.Config {
1498	1498	return switch (color) {
1499		.auto => std.io.tty.detectConfig(stderr),
	1499	.auto => tty.detectConfig(stderr),
1500	1500	.on => .escape_codes,
1501	1501	.off => .no_color,
1502	1502	};

lib/compiler/libc.zig-1

...	...	@@ -1,6 +1,5 @@
1	1	const std = @import("std");
2	2	const mem = std.mem;
3		const io = std.io;
4	3	const LibCInstallation = std.zig.LibCInstallation;
5	4
6	5	const usage_libc =

lib/compiler/reduce.zig+3-4

...	...	@@ -381,7 +381,7 @@ fn transformationsToFixups(
381	381	}
382	382	}
383	383
384		var other_source: std.io.Writer.Allocating = .init(gpa);
	384	var other_source: std.Io.Writer.Allocating = .init(gpa);
385	385	defer other_source.deinit();
386	386	try other_source.writer.writeAll("struct {\n");
387	387	try other_file_ast.render(gpa, &other_source.writer, inlined_fixups);
...	...	@@ -398,10 +398,9 @@ fn transformationsToFixups(
398	398
399	399	fn parse(gpa: Allocator, file_path: []const u8) !Ast {
400	400	const source_code = std.fs.cwd().readFileAllocOptions(
401		gpa,
402	401	file_path,
403		std.math.maxInt(u32),
404		null,
	402	gpa,
	403	.limited(std.math.maxInt(u32)),
405	404	.fromByteUnits(1),
406	405	0,
407	406	) catch \|err\| {

lib/compiler/resinator/ast.zig+3-3

...	...	@@ -22,7 +22,7 @@ pub const Tree = struct {
22	22	return @alignCast(@fieldParentPtr("base", self.node));
23	23	}
24	24
25		pub fn dump(self: Tree, writer: std.io.Writer) !void {
	25	pub fn dump(self: Tree, writer: std.Io.Writer) !void {
26	26	try self.node.dump(self, writer, 0);
27	27	}
28	28	};
...	...	@@ -726,9 +726,9 @@ pub const Node = struct {
726	726	pub fn dump(
727	727	node: *const Node,
728	728	tree: *const Tree,
729		writer: *std.io.Writer,
	729	writer: *std.Io.Writer,
730	730	indent: usize,
731		) std.io.Writer.Error!void {
	731	) std.Io.Writer.Error!void {
732	732	try writer.splatByteAll(' ', indent);
733	733	try writer.writeAll(@tagName(node.id));
734	734	switch (node.id) {

lib/compiler/resinator/cli.zig+4-4

...	...	@@ -124,13 +124,13 @@ pub const Diagnostics = struct {
124	124	try self.errors.append(self.allocator, error_details);
125	125	}
126	126
127		pub fn renderToStdErr(self: *Diagnostics, args: []const []const u8, config: std.io.tty.Config) void {
	127	pub fn renderToStdErr(self: *Diagnostics, args: []const []const u8, config: std.Io.tty.Config) void {
128	128	const stderr = std.debug.lockStderrWriter(&.{});
129	129	defer std.debug.unlockStderrWriter();
130	130	self.renderToWriter(args, stderr, config) catch return;
131	131	}
132	132
133		pub fn renderToWriter(self: Diagnostics, args: []const []const u8, writer: std.io.Writer, config: std.io.tty.Config) !void {
	133	pub fn renderToWriter(self: Diagnostics, args: []const []const u8, writer: std.Io.Writer, config: std.Io.tty.Config) !void {
134	134	for (self.errors.items) \|err_details\| {
135	135	try renderErrorMessage(writer, config, err_details, args);
136	136	}
...	...	@@ -1343,7 +1343,7 @@ test parsePercent {
1343	1343	try std.testing.expectError(error.InvalidFormat, parsePercent("~1"));
1344	1344	}
1345	1345
1346		pub fn renderErrorMessage(writer: *std.io.Writer, config: std.io.tty.Config, err_details: Diagnostics.ErrorDetails, args: []const []const u8) !void {
	1346	pub fn renderErrorMessage(writer: *std.Io.Writer, config: std.Io.tty.Config, err_details: Diagnostics.ErrorDetails, args: []const []const u8) !void {
1347	1347	try config.setColor(writer, .dim);
1348	1348	try writer.writeAll("<cli>");
1349	1349	try config.setColor(writer, .reset);
...	...	@@ -1470,7 +1470,7 @@ fn testParseOutput(args: []const []const u8, expected_output: []const u8) !?Opti
1470	1470	var diagnostics = Diagnostics.init(std.testing.allocator);
1471	1471	defer diagnostics.deinit();
1472	1472
1473		var output: std.io.Writer.Allocating = .init(std.testing.allocator);
	1473	var output: std.Io.Writer.Allocating = .init(std.testing.allocator);
1474	1474	defer output.deinit();
1475	1475
1476	1476	var options = parse(std.testing.allocator, args, &diagnostics) catch \|err\| switch (err) {

lib/compiler/resinator/errors.zig+4-4

...	...	@@ -61,7 +61,7 @@ pub const Diagnostics = struct {
61	61	return @intCast(index);
62	62	}
63	63
64		pub fn renderToStdErr(self: *Diagnostics, cwd: std.fs.Dir, source: []const u8, tty_config: std.io.tty.Config, source_mappings: ?SourceMappings) void {
	64	pub fn renderToStdErr(self: *Diagnostics, cwd: std.fs.Dir, source: []const u8, tty_config: std.Io.tty.Config, source_mappings: ?SourceMappings) void {
65	65	const stderr = std.debug.lockStderrWriter(&.{});
66	66	defer std.debug.unlockStderrWriter();
67	67	for (self.errors.items) \|err_details\| {
...	...	@@ -70,7 +70,7 @@ pub const Diagnostics = struct {
70	70	}
71	71
72	72	pub fn renderToStdErrDetectTTY(self: *Diagnostics, cwd: std.fs.Dir, source: []const u8, source_mappings: ?SourceMappings) void {
73		const tty_config = std.io.tty.detectConfig(std.fs.File.stderr());
	73	const tty_config = std.Io.tty.detectConfig(std.fs.File.stderr());
74	74	return self.renderToStdErr(cwd, source, tty_config, source_mappings);
75	75	}
76	76
...	...	@@ -409,7 +409,7 @@ pub const ErrorDetails = struct {
409	409	failed_to_open_cwd,
410	410	};
411	411
412		fn formatToken(ctx: TokenFormatContext, writer: *std.io.Writer) std.io.Writer.Error!void {
	412	fn formatToken(ctx: TokenFormatContext, writer: *std.Io.Writer) std.Io.Writer.Error!void {
413	413	switch (ctx.token.id) {
414	414	.eof => return writer.writeAll(ctx.token.id.nameForErrorDisplay()),
415	415	else => {},
...	...	@@ -894,7 +894,7 @@ fn cellCount(code_page: SupportedCodePage, source: []const u8, start_index: usiz
894	894
895	895	const truncated_str = "<...truncated...>";
896	896
897		pub fn renderErrorMessage(writer: *std.io.Writer, tty_config: std.io.tty.Config, cwd: std.fs.Dir, err_details: ErrorDetails, source: []const u8, strings: []const []const u8, source_mappings: ?SourceMappings) !void {
	897	pub fn renderErrorMessage(writer: *std.Io.Writer, tty_config: std.Io.tty.Config, cwd: std.fs.Dir, err_details: ErrorDetails, source: []const u8, strings: []const []const u8, source_mappings: ?SourceMappings) !void {
898	898	if (err_details.type == .hint) return;
899	899
900	900	const source_line_start = err_details.token.getLineStartForErrorDisplay(source);

lib/compiler/resinator/main.zig+10-6

...	...	@@ -24,7 +24,7 @@ pub fn main() !void {
24	24	const arena = arena_state.allocator();
25	25
26	26	const stderr = std.fs.File.stderr();
27		const stderr_config = std.io.tty.detectConfig(stderr);
	27	const stderr_config = std.Io.tty.detectConfig(stderr);
28	28
29	29	const args = try std.process.argsAlloc(allocator);
30	30	defer std.process.argsFree(allocator, args);
...	...	@@ -164,13 +164,14 @@ pub fn main() !void {
164	164	} else {
165	165	switch (options.input_source) {
166	166	.stdio => \|file\| {
167		break :full_input file.readToEndAlloc(allocator, std.math.maxInt(usize)) catch \|err\| {
	167	var file_reader = file.reader(&.{});
	168	break :full_input file_reader.interface.allocRemaining(allocator, .unlimited) catch \|err\| {
168	169	try error_handler.emitMessage(allocator, .err, "unable to read input from stdin: {s}", .{@errorName(err)});
169	170	std.process.exit(1);
170	171	};
171	172	},
172	173	.filename => \|input_filename\| {
173		break :full_input std.fs.cwd().readFileAlloc(allocator, input_filename, std.math.maxInt(usize)) catch \|err\| {
	174	break :full_input std.fs.cwd().readFileAlloc(input_filename, allocator, .unlimited) catch \|err\| {
174	175	try error_handler.emitMessage(allocator, .err, "unable to read input file path '{s}': {s}", .{ input_filename, @errorName(err) });
175	176	std.process.exit(1);
176	177	};
...	...	@@ -462,7 +463,10 @@ const IoStream = struct {
462	463	pub fn readAll(self: Source, allocator: std.mem.Allocator) !Data {
463	464	return switch (self) {
464	465	inline .file, .stdio => \|file\| .{
465		.bytes = try file.readToEndAlloc(allocator, std.math.maxInt(usize)),
	466	.bytes = b: {
	467	var file_reader = file.reader(&.{});
	468	break :b try file_reader.interface.allocRemaining(allocator, .unlimited);
	469	},
466	470	.needs_free = true,
467	471	},
468	472	.memory => \|list\| .{ .bytes = list.items, .needs_free = false },
...	...	@@ -621,7 +625,7 @@ const SourceMappings = @import("source_mapping.zig").SourceMappings;
621	625
622	626	const ErrorHandler = union(enum) {
623	627	server: std.zig.Server,
624		tty: std.io.tty.Config,
	628	tty: std.Io.tty.Config,
625	629
626	630	pub fn emitCliDiagnostics(
627	631	self: *ErrorHandler,
...	...	@@ -984,7 +988,7 @@ const MsgWriter = struct {
984	988	m.buf.appendSlice(msg) catch {};
985	989	}
986	990
987		pub fn setColor(m: *MsgWriter, color: std.io.tty.Color) void {
	991	pub fn setColor(m: *MsgWriter, color: std.Io.tty.Color) void {
988	992	_ = m;
989	993	_ = color;
990	994	}

lib/compiler/resinator/res.zig+3-3

...	...	@@ -164,7 +164,7 @@ pub const Language = packed struct(u16) {
164	164	return @bitCast(self);
165	165	}
166	166
167		pub fn format(language: Language, w: *std.io.Writer) std.io.Writer.Error!void {
	167	pub fn format(language: Language, w: *std.Io.Writer) std.Io.Writer.Error!void {
168	168	const language_id = language.asInt();
169	169	const language_name = language_name: {
170	170	if (std.enums.fromInt(lang.LanguageId, language_id)) \|lang_enum_val\| {
...	...	@@ -439,7 +439,7 @@ pub const NameOrOrdinal = union(enum) {
439	439	}
440	440	}
441	441
442		pub fn format(self: NameOrOrdinal, w: *std.io.Writer) !void {
	442	pub fn format(self: NameOrOrdinal, w: *std.Io.Writer) !void {
443	443	switch (self) {
444	444	.name => \|name\| {
445	445	try w.print("{f}", .{std.unicode.fmtUtf16Le(name)});
...	...	@@ -450,7 +450,7 @@ pub const NameOrOrdinal = union(enum) {
450	450	}
451	451	}
452	452
453		fn formatResourceType(self: NameOrOrdinal, w: *std.io.Writer) std.io.Writer.Error!void {
	453	fn formatResourceType(self: NameOrOrdinal, w: *std.Io.Writer) std.Io.Writer.Error!void {
454	454	switch (self) {
455	455	.name => \|name\| {
456	456	try w.print("{f}", .{std.unicode.fmtUtf16Le(name)});

lib/compiler/resinator/utils.zig+1-2

...	...	@@ -1,7 +1,6 @@
1	1	const std = @import("std");
2	2	const builtin = @import("builtin");
3	3
4		/// Like std.io.FixedBufferStream but does no bounds checking
5	4	pub const UncheckedSliceWriter = struct {
6	5	const Self = @This();
7	6
...	...	@@ -86,7 +85,7 @@ pub const ErrorMessageType = enum { err, warning, note };
86	85
87	86	/// Used for generic colored errors/warnings/notes, more context-specific error messages
88	87	/// are handled elsewhere.
89		pub fn renderErrorMessage(writer: *std.io.Writer, config: std.io.tty.Config, msg_type: ErrorMessageType, comptime format: []const u8, args: anytype) !void {
	88	pub fn renderErrorMessage(writer: *std.Io.Writer, config: std.Io.tty.Config, msg_type: ErrorMessageType, comptime format: []const u8, args: anytype) !void {
90	89	switch (msg_type) {
91	90	.err => {
92	91	try config.setColor(writer, .bold);

lib/compiler/std-docs.zig+3-4

...	...	@@ -1,7 +1,6 @@
1	1	const builtin = @import("builtin");
2	2	const std = @import("std");
3	3	const mem = std.mem;
4		const io = std.io;
5	4	const Allocator = std.mem.Allocator;
6	5	const assert = std.debug.assert;
7	6	const Cache = std.Build.Cache;
...	...	@@ -174,7 +173,7 @@ fn serveDocsFile(
174	173	// The desired API is actually sendfile, which will require enhancing std.http.Server.
175	174	// We load the file with every request so that the user can make changes to the file
176	175	// and refresh the HTML page without restarting this server.
177		const file_contents = try context.lib_dir.readFileAlloc(gpa, name, 10 * 1024 * 1024);
	176	const file_contents = try context.lib_dir.readFileAlloc(name, gpa, .limited(10 * 1024 * 1024));
178	177	defer gpa.free(file_contents);
179	178	try request.respond(file_contents, .{
180	179	.extra_headers = &.{
...	...	@@ -264,7 +263,7 @@ fn serveWasm(
264	263	});
265	264	// std.http.Server does not have a sendfile API yet.
266	265	const bin_path = try wasm_base_path.join(arena, bin_name);
267		const file_contents = try bin_path.root_dir.handle.readFileAlloc(gpa, bin_path.sub_path, 10 * 1024 * 1024);
	266	const file_contents = try bin_path.root_dir.handle.readFileAlloc(bin_path.sub_path, gpa, .limited(10 * 1024 * 1024));
268	267	defer gpa.free(file_contents);
269	268	try request.respond(file_contents, .{
270	269	.extra_headers = &.{
...	...	@@ -318,7 +317,7 @@ fn buildWasmBinary(
318	317	child.stderr_behavior = .Pipe;
319	318	try child.spawn();
320	319
321		var poller = std.io.poll(gpa, enum { stdout, stderr }, .{
	320	var poller = std.Io.poll(gpa, enum { stdout, stderr }, .{
322	321	.stdout = child.stdout.?,
323	322	.stderr = child.stderr.?,
324	323	});

lib/fuzzer.zig+1-1

...	...	@@ -220,7 +220,7 @@ const Fuzzer = struct {
220	220	const i = f.corpus.items.len;
221	221	var buf: [30]u8 = undefined;
222	222	const input_sub_path = std.fmt.bufPrint(&buf, "{d}", .{i}) catch unreachable;
223		const input = f.corpus_directory.handle.readFileAlloc(gpa, input_sub_path, 1 << 31) catch \|err\| switch (err) {
	223	const input = f.corpus_directory.handle.readFileAlloc(input_sub_path, gpa, .limited(1 << 31)) catch \|err\| switch (err) {
224	224	error.FileNotFound => {
225	225	// Make this one the next input.
226	226	const input_file = f.corpus_directory.handle.createFile(input_sub_path, .{

lib/std/Build.zig+5-5

...	...	@@ -1,6 +1,5 @@
1	1	const std = @import("std.zig");
2	2	const builtin = @import("builtin");
3		const io = std.io;
4	3	const fs = std.fs;
5	4	const mem = std.mem;
6	5	const debug = std.debug;
...	...	@@ -1830,7 +1829,8 @@ pub fn runAllowFail(
1830	1829	try Step.handleVerbose2(b, null, child.env_map, argv);
1831	1830	try child.spawn();
1832	1831
1833		const stdout = child.stdout.?.deprecatedReader().readAllAlloc(b.allocator, max_output_size) catch {
	1832	var stdout_reader = child.stdout.?.readerStreaming(&.{});
	1833	const stdout = stdout_reader.interface.allocRemaining(b.allocator, .limited(max_output_size)) catch {
1834	1834	return error.ReadFailure;
1835	1835	};
1836	1836	errdefer b.allocator.free(stdout);
...	...	@@ -2540,7 +2540,7 @@ fn dumpBadDirnameHelp(
2540	2540
2541	2541	try w.print(msg, args);
2542	2542
2543		const tty_config = std.io.tty.detectConfig(.stderr());
	2543	const tty_config = std.Io.tty.detectConfig(.stderr());
2544	2544
2545	2545	if (fail_step) \|s\| {
2546	2546	tty_config.setColor(w, .red) catch {};
...	...	@@ -2566,8 +2566,8 @@ fn dumpBadDirnameHelp(
2566	2566	/// In this function the stderr mutex has already been locked.
2567	2567	pub fn dumpBadGetPathHelp(
2568	2568	s: *Step,
2569		w: *std.io.Writer,
2570		tty_config: std.io.tty.Config,
	2569	w: *std.Io.Writer,
	2570	tty_config: std.Io.tty.Config,
2571	2571	src_builder: *Build,
2572	2572	asking_step: ?*Step,
2573	2573	) anyerror!void {

lib/std/Build/Cache.zig+3-3

...	...	@@ -286,7 +286,7 @@ pub const HashHelper = struct {
286	286
287	287	pub fn binToHex(bin_digest: BinDigest) HexDigest {
288	288	var out_digest: HexDigest = undefined;
289		var w: std.io.Writer = .fixed(&out_digest);
	289	var w: std.Io.Writer = .fixed(&out_digest);
290	290	w.printHex(&bin_digest, .lower) catch unreachable;
291	291	return out_digest;
292	292	}
...	...	@@ -664,7 +664,7 @@ pub const Manifest = struct {
664	664	const input_file_count = self.files.entries.len;
665	665	var tiny_buffer: [1]u8 = undefined; // allows allocRemaining to detect limit exceeded
666	666	var manifest_reader = self.manifest_file.?.reader(&tiny_buffer); // Reads positionally from zero.
667		const limit: std.io.Limit = .limited(manifest_file_size_max);
	667	const limit: std.Io.Limit = .limited(manifest_file_size_max);
668	668	const file_contents = manifest_reader.interface.allocRemaining(gpa, limit) catch \|err\| switch (err) {
669	669	error.OutOfMemory => return error.OutOfMemory,
670	670	error.StreamTooLong => return error.OutOfMemory,
...	...	@@ -1056,7 +1056,7 @@ pub const Manifest = struct {
1056	1056
1057	1057	fn addDepFileMaybePost(self: *Manifest, dir: fs.Dir, dep_file_basename: []const u8) !void {
1058	1058	const gpa = self.cache.gpa;
1059		const dep_file_contents = try dir.readFileAlloc(gpa, dep_file_basename, manifest_file_size_max);
	1059	const dep_file_contents = try dir.readFileAlloc(dep_file_basename, gpa, .limited(manifest_file_size_max));
1060	1060	defer gpa.free(dep_file_contents);
1061	1061
1062	1062	var error_buf: std.ArrayListUnmanaged(u8) = .empty;

lib/std/Build/Cache/Directory.zig+1-1

...	...	@@ -56,7 +56,7 @@ pub fn closeAndFree(self: *Directory, gpa: Allocator) void {
56	56	self.* = undefined;
57	57	}
58	58
59		pub fn format(self: Directory, writer: *std.io.Writer) std.io.Writer.Error!void {
	59	pub fn format(self: Directory, writer: *std.Io.Writer) std.Io.Writer.Error!void {
60	60	if (self.path) \|p\| {
61	61	try writer.writeAll(p);
62	62	try writer.writeAll(fs.path.sep_str);

lib/std/Build/Cache/Path.zig+3-3

...	...	@@ -151,7 +151,7 @@ pub fn fmtEscapeString(path: Path) std.fmt.Formatter(Path, formatEscapeString) {
151	151	return .{ .data = path };
152	152	}
153	153
154		pub fn formatEscapeString(path: Path, writer: *std.io.Writer) std.io.Writer.Error!void {
	154	pub fn formatEscapeString(path: Path, writer: *std.Io.Writer) std.Io.Writer.Error!void {
155	155	if (path.root_dir.path) \|p\| {
156	156	try std.zig.stringEscape(p, writer);
157	157	if (path.sub_path.len > 0) try std.zig.stringEscape(fs.path.sep_str, writer);
...	...	@@ -167,7 +167,7 @@ pub fn fmtEscapeChar(path: Path) std.fmt.Formatter(Path, formatEscapeChar) {
167	167	}
168	168
169	169	/// Deprecated, use double quoted escape to print paths.
170		pub fn formatEscapeChar(path: Path, writer: *std.io.Writer) std.io.Writer.Error!void {
	170	pub fn formatEscapeChar(path: Path, writer: *std.Io.Writer) std.Io.Writer.Error!void {
171	171	if (path.root_dir.path) \|p\| {
172	172	for (p) \|byte\| try std.zig.charEscape(byte, writer);
173	173	if (path.sub_path.len > 0) try writer.writeByte(fs.path.sep);
...	...	@@ -177,7 +177,7 @@ pub fn formatEscapeChar(path: Path, writer: *std.io.Writer) std.io.Writer.Error!
177	177	}
178	178	}
179	179
180		pub fn format(self: Path, writer: *std.io.Writer) std.io.Writer.Error!void {
	180	pub fn format(self: Path, writer: *std.Io.Writer) std.Io.Writer.Error!void {
181	181	if (std.fs.path.isAbsolute(self.sub_path)) {
182	182	try writer.writeAll(self.sub_path);
183	183	return;

lib/std/Build/Fuzz.zig+2-2

...	...	@@ -127,7 +127,7 @@ pub fn deinit(fuzz: *Fuzz) void {
127	127	gpa.free(fuzz.run_steps);
128	128	}
129	129
130		fn rebuildTestsWorkerRun(run: *Step.Run, gpa: Allocator, ttyconf: std.io.tty.Config, parent_prog_node: std.Progress.Node) void {
	130	fn rebuildTestsWorkerRun(run: *Step.Run, gpa: Allocator, ttyconf: std.Io.tty.Config, parent_prog_node: std.Progress.Node) void {
131	131	rebuildTestsWorkerRunFallible(run, gpa, ttyconf, parent_prog_node) catch \|err\| {
132	132	const compile = run.producer.?;
133	133	log.err("step '{s}': failed to rebuild in fuzz mode: {s}", .{
...	...	@@ -136,7 +136,7 @@ fn rebuildTestsWorkerRun(run: *Step.Run, gpa: Allocator, ttyconf: std.io.tty.Con
136	136	};
137	137	}
138	138
139		fn rebuildTestsWorkerRunFallible(run: *Step.Run, gpa: Allocator, ttyconf: std.io.tty.Config, parent_prog_node: std.Progress.Node) !void {
	139	fn rebuildTestsWorkerRunFallible(run: *Step.Run, gpa: Allocator, ttyconf: std.Io.tty.Config, parent_prog_node: std.Progress.Node) !void {
140	140	const compile = run.producer.?;
141	141	const prog_node = parent_prog_node.start(compile.step.name, 0);
142	142	defer prog_node.end();

lib/std/Build/Step/CheckFile.zig+1-1

...	...	@@ -53,7 +53,7 @@ fn make(step: *Step, options: Step.MakeOptions) !void {
53	53	try step.singleUnchangingWatchInput(check_file.source);
54	54
55	55	const src_path = check_file.source.getPath2(b, step);
56		const contents = fs.cwd().readFileAlloc(b.allocator, src_path, check_file.max_bytes) catch \|err\| {
	56	const contents = fs.cwd().readFileAlloc(src_path, b.allocator, .limited(check_file.max_bytes)) catch \|err\| {
57	57	return step.fail("unable to read '{s}': {s}", .{
58	58	src_path, @errorName(err),
59	59	});

lib/std/Build/Step/CheckObject.zig+139-150

...	...	@@ -6,7 +6,7 @@ const macho = std.macho;
6	6	const math = std.math;
7	7	const mem = std.mem;
8	8	const testing = std.testing;
9		const Writer = std.io.Writer;
	9	const Writer = std.Io.Writer;
10	10
11	11	const CheckObject = @This();
12	12
...	...	@@ -553,14 +553,13 @@ fn make(step: *Step, make_options: Step.MakeOptions) !void {
553	553
554	554	const src_path = check_object.source.getPath3(b, step);
555	555	const contents = src_path.root_dir.handle.readFileAllocOptions(
556		gpa,
557	556	src_path.sub_path,
558		check_object.max_bytes,
559		null,
	557	gpa,
	558	.limited(check_object.max_bytes),
560	559	.of(u64),
561	560	null,
562		) catch \|err\| return step.fail("unable to read '{f}': {s}", .{
563		std.fmt.alt(src_path, .formatEscapeChar), @errorName(err),
	561	) catch \|err\| return step.fail("unable to read '{f}': {t}", .{
	562	std.fmt.alt(src_path, .formatEscapeChar), err,
564	563	});
565	564
566	565	var vars: std.StringHashMap(u64) = .init(gpa);
...	...	@@ -1462,7 +1461,7 @@ const MachODumper = struct {
1462	1461	const TrieIterator = struct {
1463	1462	stream: std.Io.Reader,
1464	1463
1465		fn readUleb128(it: *TrieIterator) !u64 {
	1464	fn takeLeb128(it: *TrieIterator) !u64 {
1466	1465	return it.stream.takeLeb128(u64);
1467	1466	}
1468	1467
...	...	@@ -1470,7 +1469,7 @@ const MachODumper = struct {
1470	1469	return it.stream.takeSentinel(0);
1471	1470	}
1472	1471
1473		fn readByte(it: *TrieIterator) !u8 {
	1472	fn takeByte(it: *TrieIterator) !u8 {
1474	1473	return it.stream.takeByte();
1475	1474	}
1476	1475	};
...	...	@@ -1518,12 +1517,12 @@ const MachODumper = struct {
1518	1517	prefix: []const u8,
1519	1518	exports: *std.array_list.Managed(Export),
1520	1519	) !void {
1521		const size = try it.readUleb128();
	1520	const size = try it.takeLeb128();
1522	1521	if (size > 0) {
1523		const flags = try it.readUleb128();
	1522	const flags = try it.takeLeb128();
1524	1523	switch (flags) {
1525	1524	macho.EXPORT_SYMBOL_FLAGS_REEXPORT => {
1526		const ord = try it.readUleb128();
	1525	const ord = try it.takeLeb128();
1527	1526	const name = try arena.dupe(u8, try it.readString());
1528	1527	try exports.append(.{
1529	1528	.name = if (name.len > 0) name else prefix,
...	...	@@ -1532,8 +1531,8 @@ const MachODumper = struct {
1532	1531	});
1533	1532	},
1534	1533	macho.EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER => {
1535		const stub_offset = try it.readUleb128();
1536		const resolver_offset = try it.readUleb128();
	1534	const stub_offset = try it.takeLeb128();
	1535	const resolver_offset = try it.takeLeb128();
1537	1536	try exports.append(.{
1538	1537	.name = prefix,
1539	1538	.tag = .stub_resolver,
...	...	@@ -1544,7 +1543,7 @@ const MachODumper = struct {
1544	1543	});
1545	1544	},
1546	1545	else => {
1547		const vmoff = try it.readUleb128();
	1546	const vmoff = try it.takeLeb128();
1548	1547	try exports.append(.{
1549	1548	.name = prefix,
1550	1549	.tag = .@"export",
...	...	@@ -1563,10 +1562,10 @@ const MachODumper = struct {
1563	1562	}
1564	1563	}
1565	1564
1566		const nedges = try it.readByte();
	1565	const nedges = try it.takeByte();
1567	1566	for (0..nedges) \|_\| {
1568	1567	const label = try it.readString();
1569		const off = try it.readUleb128();
	1568	const off = try it.takeLeb128();
1570	1569	const prefix_label = try std.fmt.allocPrint(arena, "{s}{s}", .{ prefix, label });
1571	1570	const curr = it.stream.seek;
1572	1571	it.stream.seek = off;
...	...	@@ -1701,11 +1700,10 @@ const ElfDumper = struct {
1701	1700
1702	1701	fn parseAndDumpArchive(step: *Step, check: Check, bytes: []const u8) ![]const u8 {
1703	1702	const gpa = step.owner.allocator;
1704		var stream = std.io.fixedBufferStream(bytes);
1705		const reader = stream.reader();
	1703	var reader: std.Io.Reader = .fixed(bytes);
1706	1704
1707		const magic = try reader.readBytesNoEof(elf.ARMAG.len);
1708		if (!mem.eql(u8, &magic, elf.ARMAG)) {
	1705	const magic = try reader.takeArray(elf.ARMAG.len);
	1706	if (!mem.eql(u8, magic, elf.ARMAG)) {
1709	1707	return error.InvalidArchiveMagicNumber;
1710	1708	}
1711	1709
...	...	@@ -1722,28 +1720,26 @@ const ElfDumper = struct {
1722	1720	}
1723	1721
1724	1722	while (true) {
1725		if (stream.pos >= ctx.data.len) break;
1726		if (!mem.isAligned(stream.pos, 2)) stream.pos += 1;
	1723	if (reader.seek >= ctx.data.len) break;
	1724	if (!mem.isAligned(reader.seek, 2)) reader.seek += 1;
1727	1725
1728		const hdr = try reader.readStruct(elf.ar_hdr);
	1726	const hdr = try reader.takeStruct(elf.ar_hdr, .little);
1729	1727
1730	1728	if (!mem.eql(u8, &hdr.ar_fmag, elf.ARFMAG)) return error.InvalidArchiveHeaderMagicNumber;
1731	1729
1732	1730	const size = try hdr.size();
1733		defer {
1734		_ = stream.seekBy(size) catch {};
1735		}
	1731	defer reader.seek += size;
1736	1732
1737	1733	if (hdr.isSymtab()) {
1738		try ctx.parseSymtab(ctx.data[stream.pos..][0..size], .p32);
	1734	try ctx.parseSymtab(ctx.data[reader.seek..][0..size], .p32);
1739	1735	continue;
1740	1736	}
1741	1737	if (hdr.isSymtab64()) {
1742		try ctx.parseSymtab(ctx.data[stream.pos..][0..size], .p64);
	1738	try ctx.parseSymtab(ctx.data[reader.seek..][0..size], .p64);
1743	1739	continue;
1744	1740	}
1745	1741	if (hdr.isStrtab()) {
1746		ctx.strtab = ctx.data[stream.pos..][0..size];
	1742	ctx.strtab = ctx.data[reader.seek..][0..size];
1747	1743	continue;
1748	1744	}
1749	1745	if (hdr.isSymdef() or hdr.isSymdefSorted()) continue;
...	...	@@ -1755,7 +1751,7 @@ const ElfDumper = struct {
1755	1751	else
1756	1752	unreachable;
1757	1753
1758		try ctx.objects.append(gpa, .{ .name = name, .off = stream.pos, .len = size });
	1754	try ctx.objects.append(gpa, .{ .name = name, .off = reader.seek, .len = size });
1759	1755	}
1760	1756
1761	1757	var output: std.Io.Writer.Allocating = .init(gpa);
...	...	@@ -1783,11 +1779,10 @@ const ElfDumper = struct {
1783	1779	objects: std.ArrayListUnmanaged(struct { name: []const u8, off: usize, len: usize }) = .empty,
1784	1780
1785	1781	fn parseSymtab(ctx: *ArchiveContext, raw: []const u8, ptr_width: enum { p32, p64 }) !void {
1786		var stream = std.io.fixedBufferStream(raw);
1787		const reader = stream.reader();
	1782	var reader: std.Io.Reader = .fixed(raw);
1788	1783	const num = switch (ptr_width) {
1789		.p32 => try reader.readInt(u32, .big),
1790		.p64 => try reader.readInt(u64, .big),
	1784	.p32 => try reader.takeInt(u32, .big),
	1785	.p64 => try reader.takeInt(u64, .big),
1791	1786	};
1792	1787	const ptr_size: usize = switch (ptr_width) {
1793	1788	.p32 => @sizeOf(u32),
...	...	@@ -1802,8 +1797,8 @@ const ElfDumper = struct {
1802	1797	var stroff: usize = 0;
1803	1798	for (0..num) \|_\| {
1804	1799	const off = switch (ptr_width) {
1805		.p32 => try reader.readInt(u32, .big),
1806		.p64 => try reader.readInt(u64, .big),
	1800	.p32 => try reader.takeInt(u32, .big),
	1801	.p64 => try reader.takeInt(u64, .big),
1807	1802	};
1808	1803	const name = mem.sliceTo(@as([*:0]const u8, @ptrCast(strtab.ptr + stroff)), 0);
1809	1804	stroff += name.len + 1;
...	...	@@ -1868,10 +1863,9 @@ const ElfDumper = struct {
1868	1863
1869	1864	fn parseAndDumpObject(step: *Step, check: Check, bytes: []const u8) ![]const u8 {
1870	1865	const gpa = step.owner.allocator;
1871		var stream = std.io.fixedBufferStream(bytes);
1872		const reader = stream.reader();
	1866	var reader: std.Io.Reader = .fixed(bytes);
1873	1867
1874		const hdr = try reader.readStruct(elf.Elf64_Ehdr);
	1868	const hdr = try reader.takeStruct(elf.Elf64_Ehdr, .little);
1875	1869	if (!mem.eql(u8, hdr.e_ident[0..4], "\x7fELF")) {
1876	1870	return error.InvalidMagicNumber;
1877	1871	}
...	...	@@ -2360,10 +2354,9 @@ const WasmDumper = struct {
2360	2354
2361	2355	fn parseAndDump(step: *Step, check: Check, bytes: []const u8) ![]const u8 {
2362	2356	const gpa = step.owner.allocator;
2363		var fbs = std.io.fixedBufferStream(bytes);
2364		const reader = fbs.reader();
	2357	var reader: std.Io.Reader = .fixed(bytes);
2365	2358
2366		const buf = try reader.readBytesNoEof(8);
	2359	const buf = try reader.takeArray(8);
2367	2360	if (!mem.eql(u8, buf[0..4], &std.wasm.magic)) {
2368	2361	return error.InvalidMagicByte;
2369	2362	}
...	...	@@ -2373,7 +2366,7 @@ const WasmDumper = struct {
2373	2366
2374	2367	var output: std.Io.Writer.Allocating = .init(gpa);
2375	2368	defer output.deinit();
2376		parseAndDumpInner(step, check, bytes, &fbs, &output.writer) catch \|err\| switch (err) {
	2369	parseAndDumpInner(step, check, bytes, &reader, &output.writer) catch \|err\| switch (err) {
2377	2370	error.EndOfStream => try output.writer.writeAll("\n<UnexpectedEndOfStream>"),
2378	2371	else => \|e\| return e,
2379	2372	};
...	...	@@ -2384,21 +2377,19 @@ const WasmDumper = struct {
2384	2377	step: *Step,
2385	2378	check: Check,
2386	2379	bytes: []const u8,
2387		fbs: *std.io.FixedBufferStream([]const u8),
	2380	reader: *std.Io.Reader,
2388	2381	writer: *std.Io.Writer,
2389	2382	) !void {
2390		const reader = fbs.reader();
2391
2392	2383	switch (check.kind) {
2393	2384	.headers => {
2394		while (reader.readByte()) \|current_byte\| {
	2385	while (reader.takeByte()) \|current_byte\| {
2395	2386	const section = std.enums.fromInt(std.wasm.Section, current_byte) orelse {
2396	2387	return step.fail("Found invalid section id '{d}'", .{current_byte});
2397	2388	};
2398	2389
2399		const section_length = try std.leb.readUleb128(u32, reader);
2400		try parseAndDumpSection(step, section, bytes[fbs.pos..][0..section_length], writer);
2401		fbs.pos += section_length;
	2390	const section_length = try reader.takeLeb128(u32);
	2391	try parseAndDumpSection(step, section, bytes[reader.seek..][0..section_length], writer);
	2392	reader.seek += section_length;
2402	2393	} else \|_\| {} // reached end of stream
2403	2394	},
2404	2395
...	...	@@ -2410,10 +2401,9 @@ const WasmDumper = struct {
2410	2401	step: *Step,
2411	2402	section: std.wasm.Section,
2412	2403	data: []const u8,
2413		writer: anytype,
	2404	writer: *std.Io.Writer,
2414	2405	) !void {
2415		var fbs = std.io.fixedBufferStream(data);
2416		const reader = fbs.reader();
	2406	var reader: std.Io.Reader = .fixed(data);
2417	2407
2418	2408	try writer.print(
2419	2409	\\Section {s}
...	...	@@ -2432,31 +2422,31 @@ const WasmDumper = struct {
2432	2422	.code,
2433	2423	.data,
2434	2424	=> {
2435		const entries = try std.leb.readUleb128(u32, reader);
	2425	const entries = try reader.takeLeb128(u32);
2436	2426	try writer.print("\nentries {d}\n", .{entries});
2437		try parseSection(step, section, data[fbs.pos..], entries, writer);
	2427	try parseSection(step, section, data[reader.seek..], entries, writer);
2438	2428	},
2439	2429	.custom => {
2440		const name_length = try std.leb.readUleb128(u32, reader);
2441		const name = data[fbs.pos..][0..name_length];
2442		fbs.pos += name_length;
	2430	const name_length = try reader.takeLeb128(u32);
	2431	const name = data[reader.seek..][0..name_length];
	2432	reader.seek += name_length;
2443	2433	try writer.print("\nname {s}\n", .{name});
2444	2434
2445	2435	if (mem.eql(u8, name, "name")) {
2446		try parseDumpNames(step, reader, writer, data);
	2436	try parseDumpNames(step, &reader, writer, data);
2447	2437	} else if (mem.eql(u8, name, "producers")) {
2448		try parseDumpProducers(reader, writer, data);
	2438	try parseDumpProducers(&reader, writer, data);
2449	2439	} else if (mem.eql(u8, name, "target_features")) {
2450		try parseDumpFeatures(reader, writer, data);
	2440	try parseDumpFeatures(&reader, writer, data);
2451	2441	}
2452	2442	// TODO: Implement parsing and dumping other custom sections (such as relocations)
2453	2443	},
2454	2444	.start => {
2455		const start = try std.leb.readUleb128(u32, reader);
	2445	const start = try reader.takeLeb128(u32);
2456	2446	try writer.print("\nstart {d}\n", .{start});
2457	2447	},
2458	2448	.data_count => {
2459		const count = try std.leb.readUleb128(u32, reader);
	2449	const count = try reader.takeLeb128(u32);
2460	2450	try writer.print("\ncount {d}\n", .{count});
2461	2451	},
2462	2452	else => {}, // skip unknown sections
...	...	@@ -2464,41 +2454,40 @@ const WasmDumper = struct {
2464	2454	}
2465	2455
2466	2456	fn parseSection(step: *Step, section: std.wasm.Section, data: []const u8, entries: u32, writer: anytype) !void {
2467		var fbs = std.io.fixedBufferStream(data);
2468		const reader = fbs.reader();
	2457	var reader: std.Io.Reader = .fixed(data);
2469	2458
2470	2459	switch (section) {
2471	2460	.type => {
2472	2461	var i: u32 = 0;
2473	2462	while (i < entries) : (i += 1) {
2474		const func_type = try reader.readByte();
	2463	const func_type = try reader.takeByte();
2475	2464	if (func_type != std.wasm.function_type) {
2476	2465	return step.fail("expected function type, found byte '{d}'", .{func_type});
2477	2466	}
2478		const params = try std.leb.readUleb128(u32, reader);
	2467	const params = try reader.takeLeb128(u32);
2479	2468	try writer.print("params {d}\n", .{params});
2480	2469	var index: u32 = 0;
2481	2470	while (index < params) : (index += 1) {
2482		_ = try parseDumpType(step, std.wasm.Valtype, reader, writer);
	2471	_ = try parseDumpType(step, std.wasm.Valtype, &reader, writer);
2483	2472	} else index = 0;
2484		const returns = try std.leb.readUleb128(u32, reader);
	2473	const returns = try reader.takeLeb128(u32);
2485	2474	try writer.print("returns {d}\n", .{returns});
2486	2475	while (index < returns) : (index += 1) {
2487		_ = try parseDumpType(step, std.wasm.Valtype, reader, writer);
	2476	_ = try parseDumpType(step, std.wasm.Valtype, &reader, writer);
2488	2477	}
2489	2478	}
2490	2479	},
2491	2480	.import => {
2492	2481	var i: u32 = 0;
2493	2482	while (i < entries) : (i += 1) {
2494		const module_name_len = try std.leb.readUleb128(u32, reader);
2495		const module_name = data[fbs.pos..][0..module_name_len];
2496		fbs.pos += module_name_len;
2497		const name_len = try std.leb.readUleb128(u32, reader);
2498		const name = data[fbs.pos..][0..name_len];
2499		fbs.pos += name_len;
2500
2501		const kind = std.enums.fromInt(std.wasm.ExternalKind, try reader.readByte()) orelse {
	2483	const module_name_len = try reader.takeLeb128(u32);
	2484	const module_name = data[reader.seek..][0..module_name_len];
	2485	reader.seek += module_name_len;
	2486	const name_len = try reader.takeLeb128(u32);
	2487	const name = data[reader.seek..][0..name_len];
	2488	reader.seek += name_len;
	2489
	2490	const kind = std.enums.fromInt(std.wasm.ExternalKind, try reader.takeByte()) orelse {
2502	2491	return step.fail("invalid import kind", .{});
2503	2492	};
2504	2493
...	...	@@ -2510,18 +2499,18 @@ const WasmDumper = struct {
2510	2499	try writer.writeByte('\n');
2511	2500	switch (kind) {
2512	2501	.function => {
2513		try writer.print("index {d}\n", .{try std.leb.readUleb128(u32, reader)});
	2502	try writer.print("index {d}\n", .{try reader.takeLeb128(u32)});
2514	2503	},
2515	2504	.memory => {
2516		try parseDumpLimits(reader, writer);
	2505	try parseDumpLimits(&reader, writer);
2517	2506	},
2518	2507	.global => {
2519		_ = try parseDumpType(step, std.wasm.Valtype, reader, writer);
2520		try writer.print("mutable {}\n", .{0x01 == try std.leb.readUleb128(u32, reader)});
	2508	_ = try parseDumpType(step, std.wasm.Valtype, &reader, writer);
	2509	try writer.print("mutable {}\n", .{0x01 == try reader.takeLeb128(u32)});
2521	2510	},
2522	2511	.table => {
2523		_ = try parseDumpType(step, std.wasm.RefType, reader, writer);
2524		try parseDumpLimits(reader, writer);
	2512	_ = try parseDumpType(step, std.wasm.RefType, &reader, writer);
	2513	try parseDumpLimits(&reader, writer);
2525	2514	},
2526	2515	}
2527	2516	}
...	...	@@ -2529,41 +2518,41 @@ const WasmDumper = struct {
2529	2518	.function => {
2530	2519	var i: u32 = 0;
2531	2520	while (i < entries) : (i += 1) {
2532		try writer.print("index {d}\n", .{try std.leb.readUleb128(u32, reader)});
	2521	try writer.print("index {d}\n", .{try reader.takeLeb128(u32)});
2533	2522	}
2534	2523	},
2535	2524	.table => {
2536	2525	var i: u32 = 0;
2537	2526	while (i < entries) : (i += 1) {
2538		_ = try parseDumpType(step, std.wasm.RefType, reader, writer);
2539		try parseDumpLimits(reader, writer);
	2527	_ = try parseDumpType(step, std.wasm.RefType, &reader, writer);
	2528	try parseDumpLimits(&reader, writer);
2540	2529	}
2541	2530	},
2542	2531	.memory => {
2543	2532	var i: u32 = 0;
2544	2533	while (i < entries) : (i += 1) {
2545		try parseDumpLimits(reader, writer);
	2534	try parseDumpLimits(&reader, writer);
2546	2535	}
2547	2536	},
2548	2537	.global => {
2549	2538	var i: u32 = 0;
2550	2539	while (i < entries) : (i += 1) {
2551		_ = try parseDumpType(step, std.wasm.Valtype, reader, writer);
2552		try writer.print("mutable {}\n", .{0x01 == try std.leb.readUleb128(u1, reader)});
2553		try parseDumpInit(step, reader, writer);
	2540	_ = try parseDumpType(step, std.wasm.Valtype, &reader, writer);
	2541	try writer.print("mutable {}\n", .{0x01 == try reader.takeLeb128(u1)});
	2542	try parseDumpInit(step, &reader, writer);
2554	2543	}
2555	2544	},
2556	2545	.@"export" => {
2557	2546	var i: u32 = 0;
2558	2547	while (i < entries) : (i += 1) {
2559		const name_len = try std.leb.readUleb128(u32, reader);
2560		const name = data[fbs.pos..][0..name_len];
2561		fbs.pos += name_len;
2562		const kind_byte = try std.leb.readUleb128(u8, reader);
	2548	const name_len = try reader.takeLeb128(u32);
	2549	const name = data[reader.seek..][0..name_len];
	2550	reader.seek += name_len;
	2551	const kind_byte = try reader.takeLeb128(u8);
2563	2552	const kind = std.enums.fromInt(std.wasm.ExternalKind, kind_byte) orelse {
2564	2553	return step.fail("invalid export kind value '{d}'", .{kind_byte});
2565	2554	};
2566		const index = try std.leb.readUleb128(u32, reader);
	2555	const index = try reader.takeLeb128(u32);
2567	2556	try writer.print(
2568	2557	\\name {s}
2569	2558	\\kind {s}
...	...	@@ -2575,14 +2564,14 @@ const WasmDumper = struct {
2575	2564	.element => {
2576	2565	var i: u32 = 0;
2577	2566	while (i < entries) : (i += 1) {
2578		try writer.print("table index {d}\n", .{try std.leb.readUleb128(u32, reader)});
2579		try parseDumpInit(step, reader, writer);
	2567	try writer.print("table index {d}\n", .{try reader.takeLeb128(u32)});
	2568	try parseDumpInit(step, &reader, writer);
2580	2569
2581		const function_indexes = try std.leb.readUleb128(u32, reader);
	2570	const function_indexes = try reader.takeLeb128(u32);
2582	2571	var function_index: u32 = 0;
2583	2572	try writer.print("indexes {d}\n", .{function_indexes});
2584	2573	while (function_index < function_indexes) : (function_index += 1) {
2585		try writer.print("index {d}\n", .{try std.leb.readUleb128(u32, reader)});
	2574	try writer.print("index {d}\n", .{try reader.takeLeb128(u32)});
2586	2575	}
2587	2576	}
2588	2577	},
...	...	@@ -2590,27 +2579,27 @@ const WasmDumper = struct {
2590	2579	.data => {
2591	2580	var i: u32 = 0;
2592	2581	while (i < entries) : (i += 1) {
2593		const flags = try std.leb.readUleb128(u32, reader);
	2582	const flags = try reader.takeLeb128(u32);
2594	2583	const index = if (flags & 0x02 != 0)
2595		try std.leb.readUleb128(u32, reader)
	2584	try reader.takeLeb128(u32)
2596	2585	else
2597	2586	0;
2598	2587	try writer.print("memory index 0x{x}\n", .{index});
2599	2588	if (flags == 0) {
2600		try parseDumpInit(step, reader, writer);
	2589	try parseDumpInit(step, &reader, writer);
2601	2590	}
2602	2591
2603		const size = try std.leb.readUleb128(u32, reader);
	2592	const size = try reader.takeLeb128(u32);
2604	2593	try writer.print("size {d}\n", .{size});
2605		try reader.skipBytes(size, .{}); // we do not care about the content of the segments
	2594	try reader.discardAll(size); // we do not care about the content of the segments
2606	2595	}
2607	2596	},
2608	2597	else => unreachable,
2609	2598	}
2610	2599	}
2611	2600
2612		fn parseDumpType(step: *Step, comptime E: type, reader: anytype, writer: anytype) !E {
2613		const byte = try reader.readByte();
	2601	fn parseDumpType(step: Step, comptime E: type, reader: std.Io.Reader, writer: *std.Io.Writer) !E {
	2602	const byte = try reader.takeByte();
2614	2603	const tag = std.enums.fromInt(E, byte) orelse {
2615	2604	return step.fail("invalid wasm type value '{d}'", .{byte});
2616	2605	};
...	...	@@ -2619,65 +2608,65 @@ const WasmDumper = struct {
2619	2608	}
2620	2609
2621	2610	fn parseDumpLimits(reader: anytype, writer: anytype) !void {
2622		const flags = try std.leb.readUleb128(u8, reader);
2623		const min = try std.leb.readUleb128(u32, reader);
	2611	const flags = try reader.takeLeb128(u8);
	2612	const min = try reader.takeLeb128(u32);
2624	2613
2625	2614	try writer.print("min {x}\n", .{min});
2626	2615	if (flags != 0) {
2627		try writer.print("max {x}\n", .{try std.leb.readUleb128(u32, reader)});
	2616	try writer.print("max {x}\n", .{try reader.takeLeb128(u32)});
2628	2617	}
2629	2618	}
2630	2619
2631		fn parseDumpInit(step: *Step, reader: anytype, writer: anytype) !void {
2632		const byte = try reader.readByte();
	2620	fn parseDumpInit(step: Step, reader: std.Io.Reader, writer: *std.Io.Writer) !void {
	2621	const byte = try reader.takeByte();
2633	2622	const opcode = std.enums.fromInt(std.wasm.Opcode, byte) orelse {
2634	2623	return step.fail("invalid wasm opcode '{d}'", .{byte});
2635	2624	};
2636	2625	switch (opcode) {
2637		.i32_const => try writer.print("i32.const {x}\n", .{try std.leb.readIleb128(i32, reader)}),
2638		.i64_const => try writer.print("i64.const {x}\n", .{try std.leb.readIleb128(i64, reader)}),
2639		.f32_const => try writer.print("f32.const {x}\n", .{@as(f32, @bitCast(try reader.readInt(u32, .little)))}),
2640		.f64_const => try writer.print("f64.const {x}\n", .{@as(f64, @bitCast(try reader.readInt(u64, .little)))}),
2641		.global_get => try writer.print("global.get {x}\n", .{try std.leb.readUleb128(u32, reader)}),
	2626	.i32_const => try writer.print("i32.const {x}\n", .{try reader.takeLeb128(i32)}),
	2627	.i64_const => try writer.print("i64.const {x}\n", .{try reader.takeLeb128(i64)}),
	2628	.f32_const => try writer.print("f32.const {x}\n", .{@as(f32, @bitCast(try reader.takeInt(u32, .little)))}),
	2629	.f64_const => try writer.print("f64.const {x}\n", .{@as(f64, @bitCast(try reader.takeInt(u64, .little)))}),
	2630	.global_get => try writer.print("global.get {x}\n", .{try reader.takeLeb128(u32)}),
2642	2631	else => unreachable,
2643	2632	}
2644		const end_opcode = try std.leb.readUleb128(u8, reader);
	2633	const end_opcode = try reader.takeLeb128(u8);
2645	2634	if (end_opcode != @intFromEnum(std.wasm.Opcode.end)) {
2646	2635	return step.fail("expected 'end' opcode in init expression", .{});
2647	2636	}
2648	2637	}
2649	2638
2650	2639	/// https://webassembly.github.io/spec/core/appendix/custom.html
2651		fn parseDumpNames(step: *Step, reader: anytype, writer: anytype, data: []const u8) !void {
2652		while (reader.context.pos < data.len) {
	2640	fn parseDumpNames(step: Step, reader: std.Io.Reader, writer: *std.Io.Writer, data: []const u8) !void {
	2641	while (reader.seek < data.len) {
2653	2642	switch (try parseDumpType(step, std.wasm.NameSubsection, reader, writer)) {
2654	2643	// The module name subsection ... consists of a single name
2655	2644	// that is assigned to the module itself.
2656	2645	.module => {
2657		const size = try std.leb.readUleb128(u32, reader);
2658		const name_len = try std.leb.readUleb128(u32, reader);
	2646	const size = try reader.takeLeb128(u32);
	2647	const name_len = try reader.takeLeb128(u32);
2659	2648	if (size != name_len + 1) return error.BadSubsectionSize;
2660		if (reader.context.pos + name_len > data.len) return error.UnexpectedEndOfStream;
2661		try writer.print("name {s}\n", .{data[reader.context.pos..][0..name_len]});
2662		reader.context.pos += name_len;
	2649	if (reader.seek + name_len > data.len) return error.UnexpectedEndOfStream;
	2650	try writer.print("name {s}\n", .{data[reader.seek..][0..name_len]});
	2651	reader.seek += name_len;
2663	2652	},
2664	2653
2665	2654	// The function name subsection ... consists of a name map
2666	2655	// assigning function names to function indices.
2667	2656	.function, .global, .data_segment => {
2668		const size = try std.leb.readUleb128(u32, reader);
2669		const entries = try std.leb.readUleb128(u32, reader);
	2657	const size = try reader.takeLeb128(u32);
	2658	const entries = try reader.takeLeb128(u32);
2670	2659	try writer.print(
2671	2660	\\size {d}
2672	2661	\\names {d}
2673	2662	\\
2674	2663	, .{ size, entries });
2675	2664	for (0..entries) \|_\| {
2676		const index = try std.leb.readUleb128(u32, reader);
2677		const name_len = try std.leb.readUleb128(u32, reader);
2678		if (reader.context.pos + name_len > data.len) return error.UnexpectedEndOfStream;
2679		const name = data[reader.context.pos..][0..name_len];
2680		reader.context.pos += name.len;
	2665	const index = try reader.takeLeb128(u32);
	2666	const name_len = try reader.takeLeb128(u32);
	2667	if (reader.seek + name_len > data.len) return error.UnexpectedEndOfStream;
	2668	const name = data[reader.seek..][0..name_len];
	2669	reader.seek += name.len;
2681	2670
2682	2671	try writer.print(
2683	2672	\\index {d}
...	...	@@ -2699,16 +2688,16 @@ const WasmDumper = struct {
2699	2688	}
2700	2689	}
2701	2690
2702		fn parseDumpProducers(reader: anytype, writer: anytype, data: []const u8) !void {
2703		const field_count = try std.leb.readUleb128(u32, reader);
	2691	fn parseDumpProducers(reader: std.Io.Reader, writer: std.Io.Writer, data: []const u8) !void {
	2692	const field_count = try reader.takeLeb128(u32);
2704	2693	try writer.print("fields {d}\n", .{field_count});
2705	2694	var current_field: u32 = 0;
2706	2695	while (current_field < field_count) : (current_field += 1) {
2707		const field_name_length = try std.leb.readUleb128(u32, reader);
2708		const field_name = data[reader.context.pos..][0..field_name_length];
2709		reader.context.pos += field_name_length;
	2696	const field_name_length = try reader.takeLeb128(u32);
	2697	const field_name = data[reader.seek..][0..field_name_length];
	2698	reader.seek += field_name_length;
2710	2699
2711		const value_count = try std.leb.readUleb128(u32, reader);
	2700	const value_count = try reader.takeLeb128(u32);
2712	2701	try writer.print(
2713	2702	\\field_name {s}
2714	2703	\\values {d}
...	...	@@ -2716,13 +2705,13 @@ const WasmDumper = struct {
2716	2705	try writer.writeByte('\n');
2717	2706	var current_value: u32 = 0;
2718	2707	while (current_value < value_count) : (current_value += 1) {
2719		const value_length = try std.leb.readUleb128(u32, reader);
2720		const value = data[reader.context.pos..][0..value_length];
2721		reader.context.pos += value_length;
	2708	const value_length = try reader.takeLeb128(u32);
	2709	const value = data[reader.seek..][0..value_length];
	2710	reader.seek += value_length;
2722	2711
2723		const version_length = try std.leb.readUleb128(u32, reader);
2724		const version = data[reader.context.pos..][0..version_length];
2725		reader.context.pos += version_length;
	2712	const version_length = try reader.takeLeb128(u32);
	2713	const version = data[reader.seek..][0..version_length];
	2714	reader.seek += version_length;
2726	2715
2727	2716	try writer.print(
2728	2717	\\value_name {s}
...	...	@@ -2733,16 +2722,16 @@ const WasmDumper = struct {
2733	2722	}
2734	2723	}
2735	2724
2736		fn parseDumpFeatures(reader: anytype, writer: anytype, data: []const u8) !void {
2737		const feature_count = try std.leb.readUleb128(u32, reader);
	2725	fn parseDumpFeatures(reader: std.Io.Reader, writer: std.Io.Writer, data: []const u8) !void {
	2726	const feature_count = try reader.takeLeb128(u32);
2738	2727	try writer.print("features {d}\n", .{feature_count});
2739	2728
2740	2729	var index: u32 = 0;
2741	2730	while (index < feature_count) : (index += 1) {
2742		const prefix_byte = try std.leb.readUleb128(u8, reader);
2743		const name_length = try std.leb.readUleb128(u32, reader);
2744		const feature_name = data[reader.context.pos..][0..name_length];
2745		reader.context.pos += name_length;
	2731	const prefix_byte = try reader.takeLeb128(u8);
	2732	const name_length = try reader.takeLeb128(u32);
	2733	const feature_name = data[reader.seek..][0..name_length];
	2734	reader.seek += name_length;
2746	2735
2747	2736	try writer.print("{c} {s}\n", .{ prefix_byte, feature_name });
2748	2737	}

lib/std/Build/Step/Compile.zig+1-1

...	...	@@ -2021,7 +2021,7 @@ fn checkCompileErrors(compile: *Compile) !void {
2021	2021	const arena = compile.step.owner.allocator;
2022	2022
2023	2023	const actual_errors = ae: {
2024		var aw: std.io.Writer.Allocating = .init(arena);
	2024	var aw: std.Io.Writer.Allocating = .init(arena);
2025	2025	defer aw.deinit();
2026	2026	try actual_eb.renderToWriter(.{
2027	2027	.ttyconf = .no_color,

lib/std/Build/Step/ConfigHeader.zig+6-6

...	...	@@ -2,7 +2,7 @@ const std = @import("std");
2	2	const ConfigHeader = @This();
3	3	const Step = std.Build.Step;
4	4	const Allocator = std.mem.Allocator;
5		const Writer = std.io.Writer;
	5	const Writer = std.Io.Writer;
6	6
7	7	pub const Style = union(enum) {
8	8	/// A configure format supported by autotools that uses `#undef foo` to
...	...	@@ -196,7 +196,7 @@ fn make(step: *Step, options: Step.MakeOptions) !void {
196	196	man.hash.addBytes(config_header.include_path);
197	197	man.hash.addOptionalBytes(config_header.include_guard_override);
198	198
199		var aw: std.io.Writer.Allocating = .init(gpa);
	199	var aw: Writer.Allocating = .init(gpa);
200	200	defer aw.deinit();
201	201	const bw = &aw.writer;
202	202
...	...	@@ -208,7 +208,7 @@ fn make(step: *Step, options: Step.MakeOptions) !void {
208	208	.autoconf_undef, .autoconf_at => \|file_source\| {
209	209	try bw.writeAll(c_generated_line);
210	210	const src_path = file_source.getPath2(b, step);
211		const contents = std.fs.cwd().readFileAlloc(arena, src_path, config_header.max_bytes) catch \|err\| {
	211	const contents = std.fs.cwd().readFileAlloc(src_path, arena, .limited(config_header.max_bytes)) catch \|err\| {
212	212	return step.fail("unable to read autoconf input file '{s}': {s}", .{
213	213	src_path, @errorName(err),
214	214	});
...	...	@@ -222,7 +222,7 @@ fn make(step: *Step, options: Step.MakeOptions) !void {
222	222	.cmake => \|file_source\| {
223	223	try bw.writeAll(c_generated_line);
224	224	const src_path = file_source.getPath2(b, step);
225		const contents = std.fs.cwd().readFileAlloc(arena, src_path, config_header.max_bytes) catch \|err\| {
	225	const contents = std.fs.cwd().readFileAlloc(src_path, arena, .limited(config_header.max_bytes)) catch \|err\| {
226	226	return step.fail("unable to read cmake input file '{s}': {s}", .{
227	227	src_path, @errorName(err),
228	228	});
...	...	@@ -329,7 +329,7 @@ fn render_autoconf_undef(
329	329	fn render_autoconf_at(
330	330	step: *Step,
331	331	contents: []const u8,
332		aw: *std.io.Writer.Allocating,
	332	aw: *Writer.Allocating,
333	333	values: std.StringArrayHashMap(Value),
334	334	src_path: []const u8,
335	335	) !void {
...	...	@@ -753,7 +753,7 @@ fn testReplaceVariablesAutoconfAt(
753	753	expected: []const u8,
754	754	values: std.StringArrayHashMap(Value),
755	755	) !void {
756		var aw: std.io.Writer.Allocating = .init(allocator);
	756	var aw: Writer.Allocating = .init(allocator);
757	757	defer aw.deinit();
758	758
759	759	const used = try allocator.alloc(bool, values.count());

lib/std/Build/Step/ObjCopy.zig-1

...	...	@@ -9,7 +9,6 @@ const InstallDir = std.Build.InstallDir;
9	9	const Step = std.Build.Step;
10	10	const elf = std.elf;
11	11	const fs = std.fs;
12		const io = std.io;
13	12	const sort = std.sort;
14	13
15	14	pub const base_id: Step.Id = .objcopy;

lib/std/Build/WebServer.zig+4-4

...	...	@@ -3,7 +3,7 @@ thread_pool: *std.Thread.Pool,
3	3	graph: *const Build.Graph,
4	4	all_steps: []const *Build.Step,
5	5	listen_address: std.net.Address,
6		ttyconf: std.io.tty.Config,
	6	ttyconf: std.Io.tty.Config,
7	7	root_prog_node: std.Progress.Node,
8	8	watch: bool,
9	9
...	...	@@ -53,7 +53,7 @@ pub const Options = struct {
53	53	thread_pool: *std.Thread.Pool,
54	54	graph: *const std.Build.Graph,
55	55	all_steps: []const *Build.Step,
56		ttyconf: std.io.tty.Config,
	56	ttyconf: std.Io.tty.Config,
57	57	root_prog_node: std.Progress.Node,
58	58	watch: bool,
59	59	listen_address: std.net.Address,
...	...	@@ -446,7 +446,7 @@ pub fn serveFile(
446	446	// The desired API is actually sendfile, which will require enhancing http.Server.
447	447	// We load the file with every request so that the user can make changes to the file
448	448	// and refresh the HTML page without restarting this server.
449		const file_contents = path.root_dir.handle.readFileAlloc(gpa, path.sub_path, 10 * 1024 * 1024) catch \|err\| {
	449	const file_contents = path.root_dir.handle.readFileAlloc(path.sub_path, gpa, .limited(10 * 1024 * 1024)) catch \|err\| {
450	450	log.err("failed to read '{f}': {s}", .{ path, @errorName(err) });
451	451	return error.AlreadyReported;
452	452	};
...	...	@@ -557,7 +557,7 @@ fn buildClientWasm(ws: *WebServer, arena: Allocator, optimize: std.builtin.Optim
557	557	child.stderr_behavior = .Pipe;
558	558	try child.spawn();
559	559
560		var poller = std.io.poll(gpa, enum { stdout, stderr }, .{
	560	var poller = std.Io.poll(gpa, enum { stdout, stderr }, .{
561	561	.stdout = child.stdout.?,
562	562	.stderr = child.stderr.?,
563	563	});

lib/std/Io.zig-197

...	...	@@ -82,202 +82,6 @@ pub const Limit = enum(usize) {
82	82	pub const Reader = @import("Io/Reader.zig");
83	83	pub const Writer = @import("Io/Writer.zig");
84	84
85		/// Deprecated in favor of `Reader`.
86		pub fn GenericReader(
87		comptime Context: type,
88		comptime ReadError: type,
89		/// Returns the number of bytes read. It may be less than buffer.len.
90		/// If the number of bytes read is 0, it means end of stream.
91		/// End of stream is not an error condition.
92		comptime readFn: fn (context: Context, buffer: []u8) ReadError!usize,
93		) type {
94		return struct {
95		context: Context,
96
97		pub const Error = ReadError;
98		pub const NoEofError = ReadError \|\| error{
99		EndOfStream,
100		};
101
102		pub inline fn read(self: Self, buffer: []u8) Error!usize {
103		return readFn(self.context, buffer);
104		}
105
106		pub inline fn readAll(self: Self, buffer: []u8) Error!usize {
107		return @errorCast(self.any().readAll(buffer));
108		}
109
110		pub inline fn readAtLeast(self: Self, buffer: []u8, len: usize) Error!usize {
111		return @errorCast(self.any().readAtLeast(buffer, len));
112		}
113
114		pub inline fn readNoEof(self: Self, buf: []u8) NoEofError!void {
115		return @errorCast(self.any().readNoEof(buf));
116		}
117
118		pub inline fn readAllArrayList(
119		self: Self,
120		array_list: *std.array_list.Managed(u8),
121		max_append_size: usize,
122		) (error{StreamTooLong} \|\| Allocator.Error \|\| Error)!void {
123		return @errorCast(self.any().readAllArrayList(array_list, max_append_size));
124		}
125
126		pub inline fn readAllArrayListAligned(
127		self: Self,
128		comptime alignment: ?Alignment,
129		array_list: *std.array_list.AlignedManaged(u8, alignment),
130		max_append_size: usize,
131		) (error{StreamTooLong} \|\| Allocator.Error \|\| Error)!void {
132		return @errorCast(self.any().readAllArrayListAligned(
133		alignment,
134		array_list,
135		max_append_size,
136		));
137		}
138
139		pub inline fn readAllAlloc(
140		self: Self,
141		allocator: Allocator,
142		max_size: usize,
143		) (Error \|\| Allocator.Error \|\| error{StreamTooLong})![]u8 {
144		return @errorCast(self.any().readAllAlloc(allocator, max_size));
145		}
146
147		pub inline fn streamUntilDelimiter(
148		self: Self,
149		writer: anytype,
150		delimiter: u8,
151		optional_max_size: ?usize,
152		) (NoEofError \|\| error{StreamTooLong} \|\| @TypeOf(writer).Error)!void {
153		return @errorCast(self.any().streamUntilDelimiter(
154		writer,
155		delimiter,
156		optional_max_size,
157		));
158		}
159
160		pub inline fn skipUntilDelimiterOrEof(self: Self, delimiter: u8) Error!void {
161		return @errorCast(self.any().skipUntilDelimiterOrEof(delimiter));
162		}
163
164		pub inline fn readByte(self: Self) NoEofError!u8 {
165		return @errorCast(self.any().readByte());
166		}
167
168		pub inline fn readByteSigned(self: Self) NoEofError!i8 {
169		return @errorCast(self.any().readByteSigned());
170		}
171
172		pub inline fn readBytesNoEof(
173		self: Self,
174		comptime num_bytes: usize,
175		) NoEofError![num_bytes]u8 {
176		return @errorCast(self.any().readBytesNoEof(num_bytes));
177		}
178
179		pub inline fn readInt(self: Self, comptime T: type, endian: std.builtin.Endian) NoEofError!T {
180		return @errorCast(self.any().readInt(T, endian));
181		}
182
183		pub inline fn readVarInt(
184		self: Self,
185		comptime ReturnType: type,
186		endian: std.builtin.Endian,
187		size: usize,
188		) NoEofError!ReturnType {
189		return @errorCast(self.any().readVarInt(ReturnType, endian, size));
190		}
191
192		pub const SkipBytesOptions = AnyReader.SkipBytesOptions;
193
194		pub inline fn skipBytes(
195		self: Self,
196		num_bytes: u64,
197		comptime options: SkipBytesOptions,
198		) NoEofError!void {
199		return @errorCast(self.any().skipBytes(num_bytes, options));
200		}
201
202		pub inline fn isBytes(self: Self, slice: []const u8) NoEofError!bool {
203		return @errorCast(self.any().isBytes(slice));
204		}
205
206		pub inline fn readStruct(self: Self, comptime T: type) NoEofError!T {
207		return @errorCast(self.any().readStruct(T));
208		}
209
210		pub inline fn readStructEndian(self: Self, comptime T: type, endian: std.builtin.Endian) NoEofError!T {
211		return @errorCast(self.any().readStructEndian(T, endian));
212		}
213
214		pub const ReadEnumError = NoEofError \|\| error{
215		/// An integer was read, but it did not match any of the tags in the supplied enum.
216		InvalidValue,
217		};
218
219		pub inline fn readEnum(
220		self: Self,
221		comptime Enum: type,
222		endian: std.builtin.Endian,
223		) ReadEnumError!Enum {
224		return @errorCast(self.any().readEnum(Enum, endian));
225		}
226
227		pub inline fn any(self: *const Self) AnyReader {
228		return .{
229		.context = @ptrCast(&self.context),
230		.readFn = typeErasedReadFn,
231		};
232		}
233
234		const Self = @This();
235
236		fn typeErasedReadFn(context: *const anyopaque, buffer: []u8) anyerror!usize {
237		const ptr: *const Context = @ptrCast(@alignCast(context));
238		return readFn(ptr.*, buffer);
239		}
240
241		/// Helper for bridging to the new `Reader` API while upgrading.
242		pub fn adaptToNewApi(self: *const Self, buffer: []u8) Adapter {
243		return .{
244		.derp_reader = self.*,
245		.new_interface = .{
246		.buffer = buffer,
247		.vtable = &.{ .stream = Adapter.stream },
248		.seek = 0,
249		.end = 0,
250		},
251		};
252		}
253
254		pub const Adapter = struct {
255		derp_reader: Self,
256		new_interface: Reader,
257		err: ?Error = null,
258
259		fn stream(r: Reader, w: Writer, limit: Limit) Reader.StreamError!usize {
260		const a: *@This() = @alignCast(@fieldParentPtr("new_interface", r));
261		const buf = limit.slice(try w.writableSliceGreedy(1));
262		const n = a.derp_reader.read(buf) catch \|err\| {
263		a.err = err;
264		return error.ReadFailed;
265		};
266		if (n == 0) return error.EndOfStream;
267		w.advance(n);
268		return n;
269		}
270		};
271		};
272		}
273
274		/// Deprecated in favor of `Reader`.
275		pub const AnyReader = @import("Io/DeprecatedReader.zig");
276		/// Deprecated in favor of `Reader`.
277		pub const FixedBufferStream = @import("Io/fixed_buffer_stream.zig").FixedBufferStream;
278		/// Deprecated in favor of `Reader`.
279		pub const fixedBufferStream = @import("Io/fixed_buffer_stream.zig").fixedBufferStream;
280
281	85	pub const tty = @import("Io/tty.zig");
282	86
283	87	pub fn poll(
...	...	@@ -746,7 +550,6 @@ pub fn PollFiles(comptime StreamEnum: type) type {
746	550	test {
747	551	_ = Reader;
748	552	_ = Writer;
749		_ = FixedBufferStream;
750	553	_ = tty;
751	554	_ = @import("Io/test.zig");
752	555	}

lib/std/Io/DeprecatedReader.zig deleted-292

...	...	@@ -1,292 +0,0 @@
1		context: *const anyopaque,
2		readFn: const fn (context: const anyopaque, buffer: []u8) anyerror!usize,
3
4		pub const Error = anyerror;
5
6		/// Returns the number of bytes read. It may be less than buffer.len.
7		/// If the number of bytes read is 0, it means end of stream.
8		/// End of stream is not an error condition.
9		pub fn read(self: Self, buffer: []u8) anyerror!usize {
10		return self.readFn(self.context, buffer);
11		}
12
13		/// Returns the number of bytes read. If the number read is smaller than `buffer.len`, it
14		/// means the stream reached the end. Reaching the end of a stream is not an error
15		/// condition.
16		pub fn readAll(self: Self, buffer: []u8) anyerror!usize {
17		return readAtLeast(self, buffer, buffer.len);
18		}
19
20		/// Returns the number of bytes read, calling the underlying read
21		/// function the minimal number of times until the buffer has at least
22		/// `len` bytes filled. If the number read is less than `len` it means
23		/// the stream reached the end. Reaching the end of the stream is not
24		/// an error condition.
25		pub fn readAtLeast(self: Self, buffer: []u8, len: usize) anyerror!usize {
26		assert(len <= buffer.len);
27		var index: usize = 0;
28		while (index < len) {
29		const amt = try self.read(buffer[index..]);
30		if (amt == 0) break;
31		index += amt;
32		}
33		return index;
34		}
35
36		/// If the number read would be smaller than `buf.len`, `error.EndOfStream` is returned instead.
37		pub fn readNoEof(self: Self, buf: []u8) anyerror!void {
38		const amt_read = try self.readAll(buf);
39		if (amt_read < buf.len) return error.EndOfStream;
40		}
41
42		/// Appends to the `std.array_list.Managed` contents by reading from the stream
43		/// until end of stream is found.
44		/// If the number of bytes appended would exceed `max_append_size`,
45		/// `error.StreamTooLong` is returned
46		/// and the `std.array_list.Managed` has exactly `max_append_size` bytes appended.
47		pub fn readAllArrayList(
48		self: Self,
49		array_list: *std.array_list.Managed(u8),
50		max_append_size: usize,
51		) anyerror!void {
52		return self.readAllArrayListAligned(null, array_list, max_append_size);
53		}
54
55		pub fn readAllArrayListAligned(
56		self: Self,
57		comptime alignment: ?Alignment,
58		array_list: *std.array_list.AlignedManaged(u8, alignment),
59		max_append_size: usize,
60		) anyerror!void {
61		try array_list.ensureTotalCapacity(@min(max_append_size, 4096));
62		const original_len = array_list.items.len;
63		var start_index: usize = original_len;
64		while (true) {
65		array_list.expandToCapacity();
66		const dest_slice = array_list.items[start_index..];
67		const bytes_read = try self.readAll(dest_slice);
68		start_index += bytes_read;
69
70		if (start_index - original_len > max_append_size) {
71		array_list.shrinkAndFree(original_len + max_append_size);
72		return error.StreamTooLong;
73		}
74
75		if (bytes_read != dest_slice.len) {
76		array_list.shrinkAndFree(start_index);
77		return;
78		}
79
80		// This will trigger ArrayList to expand superlinearly at whatever its growth rate is.
81		try array_list.ensureTotalCapacity(start_index + 1);
82		}
83		}
84
85		/// Allocates enough memory to hold all the contents of the stream. If the allocated
86		/// memory would be greater than `max_size`, returns `error.StreamTooLong`.
87		/// Caller owns returned memory.
88		/// If this function returns an error, the contents from the stream read so far are lost.
89		pub fn readAllAlloc(self: Self, allocator: mem.Allocator, max_size: usize) anyerror![]u8 {
90		var array_list = std.array_list.Managed(u8).init(allocator);
91		defer array_list.deinit();
92		try self.readAllArrayList(&array_list, max_size);
93		return try array_list.toOwnedSlice();
94		}
95
96		/// Appends to the `writer` contents by reading from the stream until `delimiter` is found.
97		/// Does not write the delimiter itself.
98		/// If `optional_max_size` is not null and amount of written bytes exceeds `optional_max_size`,
99		/// returns `error.StreamTooLong` and finishes appending.
100		/// If `optional_max_size` is null, appending is unbounded.
101		pub fn streamUntilDelimiter(
102		self: Self,
103		writer: anytype,
104		delimiter: u8,
105		optional_max_size: ?usize,
106		) anyerror!void {
107		if (optional_max_size) \|max_size\| {
108		for (0..max_size) \|_\| {
109		const byte: u8 = try self.readByte();
110		if (byte == delimiter) return;
111		try writer.writeByte(byte);
112		}
113		return error.StreamTooLong;
114		} else {
115		while (true) {
116		const byte: u8 = try self.readByte();
117		if (byte == delimiter) return;
118		try writer.writeByte(byte);
119		}
120		// Can not throw `error.StreamTooLong` since there are no boundary.
121		}
122		}
123
124		/// Reads from the stream until specified byte is found, discarding all data,
125		/// including the delimiter.
126		/// If end-of-stream is found, this function succeeds.
127		pub fn skipUntilDelimiterOrEof(self: Self, delimiter: u8) anyerror!void {
128		while (true) {
129		const byte = self.readByte() catch \|err\| switch (err) {
130		error.EndOfStream => return,
131		else => \|e\| return e,
132		};
133		if (byte == delimiter) return;
134		}
135		}
136
137		/// Reads 1 byte from the stream or returns `error.EndOfStream`.
138		pub fn readByte(self: Self) anyerror!u8 {
139		var result: [1]u8 = undefined;
140		const amt_read = try self.read(result[0..]);
141		if (amt_read < 1) return error.EndOfStream;
142		return result[0];
143		}
144
145		/// Same as `readByte` except the returned byte is signed.
146		pub fn readByteSigned(self: Self) anyerror!i8 {
147		return @as(i8, @bitCast(try self.readByte()));
148		}
149
150		/// Reads exactly `num_bytes` bytes and returns as an array.
151		/// `num_bytes` must be comptime-known
152		pub fn readBytesNoEof(self: Self, comptime num_bytes: usize) anyerror![num_bytes]u8 {
153		var bytes: [num_bytes]u8 = undefined;
154		try self.readNoEof(&bytes);
155		return bytes;
156		}
157
158		pub inline fn readInt(self: Self, comptime T: type, endian: std.builtin.Endian) anyerror!T {
159		const bytes = try self.readBytesNoEof(@divExact(@typeInfo(T).int.bits, 8));
160		return mem.readInt(T, &bytes, endian);
161		}
162
163		pub fn readVarInt(
164		self: Self,
165		comptime ReturnType: type,
166		endian: std.builtin.Endian,
167		size: usize,
168		) anyerror!ReturnType {
169		assert(size <= @sizeOf(ReturnType));
170		var bytes_buf: [@sizeOf(ReturnType)]u8 = undefined;
171		const bytes = bytes_buf[0..size];
172		try self.readNoEof(bytes);
173		return mem.readVarInt(ReturnType, bytes, endian);
174		}
175
176		/// Optional parameters for `skipBytes`
177		pub const SkipBytesOptions = struct {
178		buf_size: usize = 512,
179		};
180
181		// `num_bytes` is a `u64` to match `off_t`
182		/// Reads `num_bytes` bytes from the stream and discards them
183		pub fn skipBytes(self: Self, num_bytes: u64, comptime options: SkipBytesOptions) anyerror!void {
184		var buf: [options.buf_size]u8 = undefined;
185		var remaining = num_bytes;
186
187		while (remaining > 0) {
188		const amt = @min(remaining, options.buf_size);
189		try self.readNoEof(buf[0..amt]);
190		remaining -= amt;
191		}
192		}
193
194		/// Reads `slice.len` bytes from the stream and returns if they are the same as the passed slice
195		pub fn isBytes(self: Self, slice: []const u8) anyerror!bool {
196		var i: usize = 0;
197		var matches = true;
198		while (i < slice.len) : (i += 1) {
199		if (slice[i] != try self.readByte()) {
200		matches = false;
201		}
202		}
203		return matches;
204		}
205
206		pub fn readStruct(self: Self, comptime T: type) anyerror!T {
207		// Only extern and packed structs have defined in-memory layout.
208		comptime assert(@typeInfo(T).@"struct".layout != .auto);
209		var res: [1]T = undefined;
210		try self.readNoEof(mem.sliceAsBytes(res[0..]));
211		return res[0];
212		}
213
214		pub fn readStructEndian(self: Self, comptime T: type, endian: std.builtin.Endian) anyerror!T {
215		var res = try self.readStruct(T);
216		if (native_endian != endian) {
217		mem.byteSwapAllFields(T, &res);
218		}
219		return res;
220		}
221
222		/// Reads an integer with the same size as the given enum's tag type. If the integer matches
223		/// an enum tag, casts the integer to the enum tag and returns it. Otherwise, returns an `error.InvalidValue`.
224		/// TODO optimization taking advantage of most fields being in order
225		pub fn readEnum(self: Self, comptime Enum: type, endian: std.builtin.Endian) anyerror!Enum {
226		const E = error{
227		/// An integer was read, but it did not match any of the tags in the supplied enum.
228		InvalidValue,
229		};
230		const type_info = @typeInfo(Enum).@"enum";
231		const tag = try self.readInt(type_info.tag_type, endian);
232
233		inline for (std.meta.fields(Enum)) \|field\| {
234		if (tag == field.value) {
235		return @field(Enum, field.name);
236		}
237		}
238
239		return E.InvalidValue;
240		}
241
242		/// Reads the stream until the end, ignoring all the data.
243		/// Returns the number of bytes discarded.
244		pub fn discard(self: Self) anyerror!u64 {
245		var trash: [4096]u8 = undefined;
246		var index: u64 = 0;
247		while (true) {
248		const n = try self.read(&trash);
249		if (n == 0) return index;
250		index += n;
251		}
252		}
253
254		/// Helper for bridging to the new `Reader` API while upgrading.
255		pub fn adaptToNewApi(self: *const Self, buffer: []u8) Adapter {
256		return .{
257		.derp_reader = self.*,
258		.new_interface = .{
259		.buffer = buffer,
260		.vtable = &.{ .stream = Adapter.stream },
261		.seek = 0,
262		.end = 0,
263		},
264		};
265		}
266
267		pub const Adapter = struct {
268		derp_reader: Self,
269		new_interface: std.io.Reader,
270		err: ?Error = null,
271
272		fn stream(r: std.io.Reader, w: std.io.Writer, limit: std.io.Limit) std.io.Reader.StreamError!usize {
273		const a: *@This() = @alignCast(@fieldParentPtr("new_interface", r));
274		const buf = limit.slice(try w.writableSliceGreedy(1));
275		const n = a.derp_reader.read(buf) catch \|err\| {
276		a.err = err;
277		return error.ReadFailed;
278		};
279		if (n == 0) return error.EndOfStream;
280		w.advance(n);
281		return n;
282		}
283		};
284
285		const std = @import("../std.zig");
286		const Self = @This();
287		const math = std.math;
288		const assert = std.debug.assert;
289		const mem = std.mem;
290		const testing = std.testing;
291		const native_endian = @import("builtin").target.cpu.arch.endian();
292		const Alignment = std.mem.Alignment;

lib/std/Io/Reader.zig+132-21

...	...	@@ -4,12 +4,12 @@ const builtin = @import("builtin");
4	4	const native_endian = builtin.target.cpu.arch.endian();
5	5
6	6	const std = @import("../std.zig");
7		const Writer = std.io.Writer;
	7	const Writer = std.Io.Writer;
	8	const Limit = std.Io.Limit;
8	9	const assert = std.debug.assert;
9	10	const testing = std.testing;
10	11	const Allocator = std.mem.Allocator;
11	12	const ArrayList = std.ArrayList;
12		const Limit = std.io.Limit;
13	13
14	14	pub const Limited = @import("Reader/Limited.zig");
15	15
...	...	@@ -292,6 +292,23 @@ pub fn allocRemaining(r: *Reader, gpa: Allocator, limit: Limit) LimitedAllocErro
292	292	return buffer.toOwnedSlice(gpa);
293	293	}
294	294
	295	pub fn allocRemainingAlignedSentinel(
	296	r: *Reader,
	297	gpa: Allocator,
	298	limit: Limit,
	299	comptime alignment: std.mem.Alignment,
	300	comptime sentinel: ?u8,
	301	) LimitedAllocError!(if (sentinel) \|s\| [:s]align(alignment.toByteUnits()) u8 else []align(alignment.toByteUnits()) u8) {
	302	var buffer: std.array_list.Aligned(u8, alignment) = .empty;
	303	defer buffer.deinit(gpa);
	304	try appendRemainingAligned(r, gpa, alignment, &buffer, limit);
	305	if (sentinel) \|s\| {
	306	return buffer.toOwnedSliceSentinel(gpa, s);
	307	} else {
	308	return buffer.toOwnedSlice(gpa);
	309	}
	310	}
	311
295	312	/// Transfers all bytes from the current position to the end of the stream, up
296	313	/// to `limit`, appending them to `list`.
297	314	///
...	...	@@ -308,15 +325,30 @@ pub fn appendRemaining(
308	325	list: *ArrayList(u8),
309	326	limit: Limit,
310	327	) LimitedAllocError!void {
311		var a: std.Io.Writer.Allocating = .initOwnedSlice(gpa, list.allocatedSlice());
312		a.writer.end = list.items.len;
313		list.* = .empty;
314		defer {
315		list.* = .{
316		.items = a.writer.buffer[0..a.writer.end],
317		.capacity = a.writer.buffer.len,
318		};
319		}
	328	return appendRemainingAligned(r, gpa, .of(u8), list, limit);
	329	}
	330
	331	/// Transfers all bytes from the current position to the end of the stream, up
	332	/// to `limit`, appending them to `list`.
	333	///
	334	/// If `limit` is reached or exceeded, `error.StreamTooLong` is returned
	335	/// instead. In such case, the next byte that would be read will be the first
	336	/// one to exceed `limit`, and all preceeding bytes have been appended to
	337	/// `list`.
	338	///
	339	/// See also:
	340	/// * `appendRemaining`
	341	/// * `allocRemainingAligned`
	342	pub fn appendRemainingAligned(
	343	r: *Reader,
	344	gpa: Allocator,
	345	comptime alignment: std.mem.Alignment,
	346	list: *std.array_list.Aligned(u8, alignment),
	347	limit: Limit,
	348	) LimitedAllocError!void {
	349	var a = std.Io.Writer.Allocating.fromArrayListAligned(gpa, alignment, list);
	350	defer list.* = a.toArrayListAligned(alignment);
	351
320	352	var remaining = limit;
321	353	while (remaining.nonzero()) {
322	354	const n = stream(r, &a.writer, remaining) catch \|err\| switch (err) {
...	...	@@ -1584,7 +1616,7 @@ test readVec {
1584	1616	test "expected error.EndOfStream" {
1585	1617	// Unit test inspired by https://github.com/ziglang/zig/issues/17733
1586	1618	var buffer: [3]u8 = undefined;
1587		var r: std.io.Reader = .fixed(&buffer);
	1619	var r: std.Io.Reader = .fixed(&buffer);
1588	1620	r.end = 0; // capacity 3, but empty
1589	1621	try std.testing.expectError(error.EndOfStream, r.takeEnum(enum(u8) { a, b }, .little));
1590	1622	try std.testing.expectError(error.EndOfStream, r.take(3));
...	...	@@ -1639,15 +1671,6 @@ fn failingDiscard(r: *Reader, limit: Limit) Error!usize {
1639	1671	return error.ReadFailed;
1640	1672	}
1641	1673
1642		pub fn adaptToOldInterface(r: *Reader) std.Io.AnyReader {
1643		return .{ .context = r, .readFn = derpRead };
1644		}
1645
1646		fn derpRead(context: *const anyopaque, buffer: []u8) anyerror!usize {
1647		const r: *Reader = @ptrCast(@alignCast(@constCast(context)));
1648		return r.readSliceShort(buffer);
1649		}
1650
1651	1674	test "readAlloc when the backing reader provides one byte at a time" {
1652	1675	const str = "This is a test";
1653	1676	var tiny_buffer: [1]u8 = undefined;
...	...	@@ -1870,6 +1893,94 @@ pub fn writableVector(r: *Reader, buffer: [][]u8, data: []const []u8) Error!stru
1870	1893	return .{ i, n };
1871	1894	}
1872	1895
	1896	test "deserialize signed LEB128" {
	1897	// Truncated
	1898	try testing.expectError(error.EndOfStream, testLeb128(i64, "\x80"));
	1899
	1900	// Overflow
	1901	try testing.expectError(error.Overflow, testLeb128(i8, "\x80\x80\x40"));
	1902	try testing.expectError(error.Overflow, testLeb128(i16, "\x80\x80\x80\x40"));
	1903	try testing.expectError(error.Overflow, testLeb128(i32, "\x80\x80\x80\x80\x40"));
	1904	try testing.expectError(error.Overflow, testLeb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x40"));
	1905	try testing.expectError(error.Overflow, testLeb128(i8, "\xff\x7e"));
	1906	try testing.expectError(error.Overflow, testLeb128(i32, "\x80\x80\x80\x80\x08"));
	1907	try testing.expectError(error.Overflow, testLeb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x01"));
	1908
	1909	// Decode SLEB128
	1910	try testing.expect((try testLeb128(i64, "\x00")) == 0);
	1911	try testing.expect((try testLeb128(i64, "\x01")) == 1);
	1912	try testing.expect((try testLeb128(i64, "\x3f")) == 63);
	1913	try testing.expect((try testLeb128(i64, "\x40")) == -64);
	1914	try testing.expect((try testLeb128(i64, "\x41")) == -63);
	1915	try testing.expect((try testLeb128(i64, "\x7f")) == -1);
	1916	try testing.expect((try testLeb128(i64, "\x80\x01")) == 128);
	1917	try testing.expect((try testLeb128(i64, "\x81\x01")) == 129);
	1918	try testing.expect((try testLeb128(i64, "\xff\x7e")) == -129);
	1919	try testing.expect((try testLeb128(i64, "\x80\x7f")) == -128);
	1920	try testing.expect((try testLeb128(i64, "\x81\x7f")) == -127);
	1921	try testing.expect((try testLeb128(i64, "\xc0\x00")) == 64);
	1922	try testing.expect((try testLeb128(i64, "\xc7\x9f\x7f")) == -12345);
	1923	try testing.expect((try testLeb128(i8, "\xff\x7f")) == -1);
	1924	try testing.expect((try testLeb128(i16, "\xff\xff\x7f")) == -1);
	1925	try testing.expect((try testLeb128(i32, "\xff\xff\xff\xff\x7f")) == -1);
	1926	try testing.expect((try testLeb128(i32, "\x80\x80\x80\x80\x78")) == -0x80000000);
	1927	try testing.expect((try testLeb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x7f")) == @as(i64, @bitCast(@as(u64, @intCast(0x8000000000000000)))));
	1928	try testing.expect((try testLeb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x40")) == -0x4000000000000000);
	1929	try testing.expect((try testLeb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x7f")) == -0x8000000000000000);
	1930
	1931	// Decode unnormalized SLEB128 with extra padding bytes.
	1932	try testing.expect((try testLeb128(i64, "\x80\x00")) == 0);
	1933	try testing.expect((try testLeb128(i64, "\x80\x80\x00")) == 0);
	1934	try testing.expect((try testLeb128(i64, "\xff\x00")) == 0x7f);
	1935	try testing.expect((try testLeb128(i64, "\xff\x80\x00")) == 0x7f);
	1936	try testing.expect((try testLeb128(i64, "\x80\x81\x00")) == 0x80);
	1937	try testing.expect((try testLeb128(i64, "\x80\x81\x80\x00")) == 0x80);
	1938	}
	1939
	1940	test "deserialize unsigned LEB128" {
	1941	// Truncated
	1942	try testing.expectError(error.EndOfStream, testLeb128(u64, "\x80"));
	1943	try testing.expectError(error.EndOfStream, testLeb128(u16, "\x80\x80\x84"));
	1944	try testing.expectError(error.EndOfStream, testLeb128(u32, "\x80\x80\x80\x80\x90"));
	1945
	1946	// Overflow
	1947	try testing.expectError(error.Overflow, testLeb128(u8, "\x80\x02"));
	1948	try testing.expectError(error.Overflow, testLeb128(u8, "\x80\x80\x40"));
	1949	try testing.expectError(error.Overflow, testLeb128(u16, "\x80\x80\x80\x40"));
	1950	try testing.expectError(error.Overflow, testLeb128(u32, "\x80\x80\x80\x80\x40"));
	1951	try testing.expectError(error.Overflow, testLeb128(u64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x40"));
	1952
	1953	// Decode ULEB128
	1954	try testing.expect((try testLeb128(u64, "\x00")) == 0);
	1955	try testing.expect((try testLeb128(u64, "\x01")) == 1);
	1956	try testing.expect((try testLeb128(u64, "\x3f")) == 63);
	1957	try testing.expect((try testLeb128(u64, "\x40")) == 64);
	1958	try testing.expect((try testLeb128(u64, "\x7f")) == 0x7f);
	1959	try testing.expect((try testLeb128(u64, "\x80\x01")) == 0x80);
	1960	try testing.expect((try testLeb128(u64, "\x81\x01")) == 0x81);
	1961	try testing.expect((try testLeb128(u64, "\x90\x01")) == 0x90);
	1962	try testing.expect((try testLeb128(u64, "\xff\x01")) == 0xff);
	1963	try testing.expect((try testLeb128(u64, "\x80\x02")) == 0x100);
	1964	try testing.expect((try testLeb128(u64, "\x81\x02")) == 0x101);
	1965	try testing.expect((try testLeb128(u64, "\x80\xc1\x80\x80\x10")) == 4294975616);
	1966	try testing.expect((try testLeb128(u64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x01")) == 0x8000000000000000);
	1967
	1968	// Decode ULEB128 with extra padding bytes
	1969	try testing.expect((try testLeb128(u64, "\x80\x00")) == 0);
	1970	try testing.expect((try testLeb128(u64, "\x80\x80\x00")) == 0);
	1971	try testing.expect((try testLeb128(u64, "\xff\x00")) == 0x7f);
	1972	try testing.expect((try testLeb128(u64, "\xff\x80\x00")) == 0x7f);
	1973	try testing.expect((try testLeb128(u64, "\x80\x81\x00")) == 0x80);
	1974	try testing.expect((try testLeb128(u64, "\x80\x81\x80\x00")) == 0x80);
	1975	}
	1976
	1977	fn testLeb128(comptime T: type, encoded: []const u8) !T {
	1978	var reader: std.Io.Reader = .fixed(encoded);
	1979	const result = try reader.takeLeb128(T);
	1980	try testing.expect(reader.seek == reader.end);
	1981	return result;
	1982	}
	1983
1873	1984	test {
1874	1985	_ = Limited;
1875	1986	}

lib/std/Io/Reader/Limited.zig+3-3

...	...	@@ -1,9 +1,9 @@
1	1	const Limited = @This();
2	2
3	3	const std = @import("../../std.zig");
4		const Reader = std.io.Reader;
5		const Writer = std.io.Writer;
6		const Limit = std.io.Limit;
	4	const Reader = std.Io.Reader;
	5	const Writer = std.Io.Writer;
	6	const Limit = std.Io.Limit;
7	7
8	8	unlimited: *Reader,
9	9	remaining: Limit,

lib/std/Io/Writer.zig+123-47

...	...	@@ -2531,13 +2531,14 @@ pub fn Hashing(comptime Hasher: type) type {
2531	2531	/// Maintains `Writer` state such that it writes to the unused capacity of an
2532	2532	/// array list, filling it up completely before making a call through the
2533	2533	/// vtable, causing a resize. Consequently, the same, optimized, non-generic
2534		/// machine code that uses `std.Io.Reader`, such as formatted printing, takes
	2534	/// machine code that uses `Writer`, such as formatted printing, takes
2535	2535	/// the hot paths when using this API.
2536	2536	///
2537	2537	/// When using this API, it is not necessary to call `flush`.
2538	2538	pub const Allocating = struct {
2539	2539	allocator: Allocator,
2540	2540	writer: Writer,
	2541	alignment: std.mem.Alignment,
2541	2542
2542	2543	pub fn init(allocator: Allocator) Allocating {
2543	2544	return .{
...	...	@@ -2546,6 +2547,7 @@ pub const Allocating = struct {
2546	2547	.buffer = &.{},
2547	2548	.vtable = &vtable,
2548	2549	},
	2550	.alignment = .of(u8),
2549	2551	};
2550	2552	}
2551	2553
...	...	@@ -2553,24 +2555,47 @@ pub const Allocating = struct {
2553	2555	return .{
2554	2556	.allocator = allocator,
2555	2557	.writer = .{
2556		.buffer = try allocator.alloc(u8, capacity),
	2558	.buffer = if (capacity == 0)
	2559	&.{}
	2560	else
	2561	(allocator.rawAlloc(capacity, .of(u8), @returnAddress()) orelse
	2562	return error.OutOfMemory)[0..capacity],
2557	2563	.vtable = &vtable,
2558	2564	},
	2565	.alignment = .of(u8),
2559	2566	};
2560	2567	}
2561	2568
2562	2569	pub fn initOwnedSlice(allocator: Allocator, slice: []u8) Allocating {
	2570	return initOwnedSliceAligned(allocator, .of(u8), slice);
	2571	}
	2572
	2573	pub fn initOwnedSliceAligned(
	2574	allocator: Allocator,
	2575	comptime alignment: std.mem.Alignment,
	2576	slice: []align(alignment.toByteUnits()) u8,
	2577	) Allocating {
2563	2578	return .{
2564	2579	.allocator = allocator,
2565	2580	.writer = .{
2566	2581	.buffer = slice,
2567	2582	.vtable = &vtable,
2568	2583	},
	2584	.alignment = alignment,
2569	2585	};
2570	2586	}
2571	2587
2572	2588	/// Replaces `array_list` with empty, taking ownership of the memory.
2573	2589	pub fn fromArrayList(allocator: Allocator, array_list: *ArrayList(u8)) Allocating {
	2590	return fromArrayListAligned(allocator, .of(u8), array_list);
	2591	}
	2592
	2593	/// Replaces `array_list` with empty, taking ownership of the memory.
	2594	pub fn fromArrayListAligned(
	2595	allocator: Allocator,
	2596	comptime alignment: std.mem.Alignment,
	2597	array_list: *std.array_list.Aligned(u8, alignment),
	2598	) Allocating {
2574	2599	defer array_list.* = .empty;
2575	2600	return .{
2576	2601	.allocator = allocator,
...	...	@@ -2579,6 +2604,7 @@ pub const Allocating = struct {
2579	2604	.buffer = array_list.allocatedSlice(),
2580	2605	.end = array_list.items.len,
2581	2606	},
	2607	.alignment = alignment,
2582	2608	};
2583	2609	}
2584	2610
...	...	@@ -2590,16 +2616,27 @@ pub const Allocating = struct {
2590	2616	};
2591	2617
2592	2618	pub fn deinit(a: *Allocating) void {
2593		a.allocator.free(a.writer.buffer);
	2619	if (a.writer.buffer.len == 0) return;
	2620	a.allocator.rawFree(a.writer.buffer, a.alignment, @returnAddress());
2594	2621	a.* = undefined;
2595	2622	}
2596	2623
2597	2624	/// Returns an array list that takes ownership of the allocated memory.
2598	2625	/// Resets the `Allocating` to an empty state.
2599	2626	pub fn toArrayList(a: *Allocating) ArrayList(u8) {
	2627	return toArrayListAligned(a, .of(u8));
	2628	}
	2629
	2630	/// Returns an array list that takes ownership of the allocated memory.
	2631	/// Resets the `Allocating` to an empty state.
	2632	pub fn toArrayListAligned(
	2633	a: *Allocating,
	2634	comptime alignment: std.mem.Alignment,
	2635	) std.array_list.Aligned(u8, alignment) {
	2636	assert(a.alignment == alignment); // Required for Allocator correctness.
2600	2637	const w = &a.writer;
2601		const result: ArrayList(u8) = .{
2602		.items = w.buffer[0..w.end],
	2638	const result: std.array_list.Aligned(u8, alignment) = .{
	2639	.items = @alignCast(w.buffer[0..w.end]),
2603	2640	.capacity = w.buffer.len,
2604	2641	};
2605	2642	w.buffer = &.{};
...	...	@@ -2608,28 +2645,74 @@ pub const Allocating = struct {
2608	2645	}
2609	2646
2610	2647	pub fn ensureUnusedCapacity(a: *Allocating, additional_count: usize) Allocator.Error!void {
2611		var list = a.toArrayList();
2612		defer a.setArrayList(list);
2613		return list.ensureUnusedCapacity(a.allocator, additional_count);
	2648	const new_capacity = std.math.add(usize, a.writer.end, additional_count) catch return error.OutOfMemory;
	2649	return ensureTotalCapacity(a, new_capacity);
2614	2650	}
2615	2651
2616	2652	pub fn ensureTotalCapacity(a: *Allocating, new_capacity: usize) Allocator.Error!void {
2617		var list = a.toArrayList();
2618		defer a.setArrayList(list);
2619		return list.ensureTotalCapacity(a.allocator, new_capacity);
2620		}
	2653	// Protects growing unnecessarily since better_capacity will be larger.
	2654	if (a.writer.buffer.len >= new_capacity) return;
	2655	const better_capacity = ArrayList(u8).growCapacity(a.writer.buffer.len, new_capacity);
	2656	return ensureTotalCapacityPrecise(a, better_capacity);
	2657	}
	2658
	2659	pub fn ensureTotalCapacityPrecise(a: *Allocating, new_capacity: usize) Allocator.Error!void {
	2660	const old_memory = a.writer.buffer;
	2661	if (old_memory.len >= new_capacity) return;
	2662	assert(new_capacity != 0);
	2663	const alignment = a.alignment;
	2664	if (old_memory.len > 0) {
	2665	if (a.allocator.rawRemap(old_memory, alignment, new_capacity, @returnAddress())) \|new\| {
	2666	a.writer.buffer = new[0..new_capacity];
	2667	return;
	2668	}
	2669	}
	2670	const new_memory = (a.allocator.rawAlloc(new_capacity, alignment, @returnAddress()) orelse
	2671	return error.OutOfMemory)[0..new_capacity];
	2672	const saved = old_memory[0..a.writer.end];
	2673	@memcpy(new_memory[0..saved.len], saved);
	2674	if (old_memory.len != 0) a.allocator.rawFree(old_memory, alignment, @returnAddress());
	2675	a.writer.buffer = new_memory;
	2676	}
	2677
	2678	pub fn toOwnedSlice(a: *Allocating) Allocator.Error![]u8 {
	2679	const old_memory = a.writer.buffer;
	2680	const alignment = a.alignment;
	2681	const buffered_len = a.writer.end;
	2682
	2683	if (old_memory.len > 0) {
	2684	if (buffered_len == 0) {
	2685	a.allocator.rawFree(old_memory, alignment, @returnAddress());
	2686	a.writer.buffer = &.{};
	2687	a.writer.end = 0;
	2688	return old_memory[0..0];
	2689	} else if (a.allocator.rawRemap(old_memory, alignment, buffered_len, @returnAddress())) \|new\| {
	2690	a.writer.buffer = &.{};
	2691	a.writer.end = 0;
	2692	return new[0..buffered_len];
	2693	}
	2694	}
2621	2695
2622		pub fn toOwnedSlice(a: *Allocating) error{OutOfMemory}![]u8 {
2623		var list = a.toArrayList();
2624		defer a.setArrayList(list);
2625		return list.toOwnedSlice(a.allocator);
	2696	if (buffered_len == 0)
	2697	return a.writer.buffer[0..0];
	2698
	2699	const new_memory = (a.allocator.rawAlloc(buffered_len, alignment, @returnAddress()) orelse
	2700	return error.OutOfMemory)[0..buffered_len];
	2701	@memcpy(new_memory, old_memory[0..buffered_len]);
	2702	if (old_memory.len != 0) a.allocator.rawFree(old_memory, alignment, @returnAddress());
	2703	a.writer.buffer = &.{};
	2704	a.writer.end = 0;
	2705	return new_memory;
2626	2706	}
2627	2707
2628		pub fn toOwnedSliceSentinel(a: *Allocating, comptime sentinel: u8) error{OutOfMemory}![:sentinel]u8 {
2629		const gpa = a.allocator;
2630		var list = @This().toArrayList(a);
2631		defer a.setArrayList(list);
2632		return list.toOwnedSliceSentinel(gpa, sentinel);
	2708	pub fn toOwnedSliceSentinel(a: *Allocating, comptime sentinel: u8) Allocator.Error![:sentinel]u8 {
	2709	// This addition can never overflow because `a.writer.buffer` can never occupy the whole address space.
	2710	try ensureTotalCapacityPrecise(a, a.writer.end + 1);
	2711	a.writer.buffer[a.writer.end] = sentinel;
	2712	a.writer.end += 1;
	2713	errdefer a.writer.end -= 1;
	2714	const result = try toOwnedSlice(a);
	2715	return result[0 .. result.len - 1 :sentinel];
2633	2716	}
2634	2717
2635	2718	pub fn written(a: *Allocating) []u8 {
...	...	@@ -2646,57 +2729,50 @@ pub const Allocating = struct {
2646	2729
2647	2730	fn drain(w: *Writer, data: []const []const u8, splat: usize) Error!usize {
2648	2731	const a: *Allocating = @fieldParentPtr("writer", w);
2649		const gpa = a.allocator;
2650	2732	const pattern = data[data.len - 1];
2651	2733	const splat_len = pattern.len * splat;
2652		var list = a.toArrayList();
2653		defer setArrayList(a, list);
2654		const start_len = list.items.len;
	2734	const start_len = a.writer.end;
2655	2735	assert(data.len != 0);
2656	2736	for (data) \|bytes\| {
2657		list.ensureUnusedCapacity(gpa, bytes.len + splat_len + 1) catch return error.WriteFailed;
2658		list.appendSliceAssumeCapacity(bytes);
	2737	a.ensureUnusedCapacity(bytes.len + splat_len + 1) catch return error.WriteFailed;
	2738	@memcpy(a.writer.buffer[a.writer.end..][0..bytes.len], bytes);
	2739	a.writer.end += bytes.len;
2659	2740	}
2660	2741	if (splat == 0) {
2661		list.items.len -= pattern.len;
	2742	a.writer.end -= pattern.len;
2662	2743	} else switch (pattern.len) {
2663	2744	0 => {},
2664		1 => list.appendNTimesAssumeCapacity(pattern[0], splat - 1),
2665		else => for (0..splat - 1) \|_\| list.appendSliceAssumeCapacity(pattern),
	2745	1 => {
	2746	@memset(a.writer.buffer[a.writer.end..][0 .. splat - 1], pattern[0]);
	2747	a.writer.end += splat - 1;
	2748	},
	2749	else => for (0..splat - 1) \|_\| {
	2750	@memcpy(a.writer.buffer[a.writer.end..][0..pattern.len], pattern);
	2751	a.writer.end += pattern.len;
	2752	},
2666	2753	}
2667		return list.items.len - start_len;
	2754	return a.writer.end - start_len;
2668	2755	}
2669	2756
2670	2757	fn sendFile(w: Writer, file_reader: File.Reader, limit: Limit) FileError!usize {
2671	2758	if (File.Handle == void) return error.Unimplemented;
2672	2759	if (limit == .nothing) return 0;
2673	2760	const a: *Allocating = @fieldParentPtr("writer", w);
2674		const gpa = a.allocator;
2675		var list = a.toArrayList();
2676		defer setArrayList(a, list);
2677	2761	const pos = file_reader.logicalPos();
2678	2762	const additional = if (file_reader.getSize()) \|size\| size - pos else \|_\| std.atomic.cache_line;
2679	2763	if (additional == 0) return error.EndOfStream;
2680		list.ensureUnusedCapacity(gpa, limit.minInt64(additional)) catch return error.WriteFailed;
2681		const dest = limit.slice(list.unusedCapacitySlice());
	2764	a.ensureUnusedCapacity(limit.minInt64(additional)) catch return error.WriteFailed;
	2765	const dest = limit.slice(a.writer.buffer[a.writer.end..]);
2682	2766	const n = try file_reader.read(dest);
2683		list.items.len += n;
	2767	a.writer.end += n;
2684	2768	return n;
2685	2769	}
2686	2770
2687	2771	fn growingRebase(w: *Writer, preserve: usize, minimum_len: usize) Error!void {
2688	2772	const a: *Allocating = @fieldParentPtr("writer", w);
2689		const gpa = a.allocator;
2690		var list = a.toArrayList();
2691		defer setArrayList(a, list);
2692	2773	const total = std.math.add(usize, preserve, minimum_len) catch return error.WriteFailed;
2693		list.ensureTotalCapacity(gpa, total) catch return error.WriteFailed;
2694		list.ensureUnusedCapacity(gpa, minimum_len) catch return error.WriteFailed;
2695		}
2696
2697		fn setArrayList(a: *Allocating, list: ArrayList(u8)) void {
2698		a.writer.buffer = list.allocatedSlice();
2699		a.writer.end = list.items.len;
	2774	a.ensureTotalCapacity(total) catch return error.WriteFailed;
	2775	a.ensureUnusedCapacity(minimum_len) catch return error.WriteFailed;
2700	2776	}
2701	2777
2702	2778	test Allocating {

lib/std/Io/fixed_buffer_stream.zig deleted-114

...	...	@@ -1,114 +0,0 @@
1		const std = @import("../std.zig");
2		const io = std.io;
3		const testing = std.testing;
4		const mem = std.mem;
5		const assert = std.debug.assert;
6
7		/// Deprecated in favor of `std.Io.Reader.fixed` and `std.Io.Writer.fixed`.
8		pub fn FixedBufferStream(comptime Buffer: type) type {
9		return struct {
10		/// `Buffer` is either a `[]u8` or `[]const u8`.
11		buffer: Buffer,
12		pos: usize,
13
14		pub const ReadError = error{};
15		pub const WriteError = error{NoSpaceLeft};
16		pub const SeekError = error{};
17		pub const GetSeekPosError = error{};
18
19		pub const Reader = io.GenericReader(*Self, ReadError, read);
20
21		const Self = @This();
22
23		pub fn reader(self: *Self) Reader {
24		return .{ .context = self };
25		}
26
27		pub fn read(self: *Self, dest: []u8) ReadError!usize {
28		const size = @min(dest.len, self.buffer.len - self.pos);
29		const end = self.pos + size;
30
31		@memcpy(dest[0..size], self.buffer[self.pos..end]);
32		self.pos = end;
33
34		return size;
35		}
36
37		pub fn seekTo(self: *Self, pos: u64) SeekError!void {
38		self.pos = @min(std.math.lossyCast(usize, pos), self.buffer.len);
39		}
40
41		pub fn seekBy(self: *Self, amt: i64) SeekError!void {
42		if (amt < 0) {
43		const abs_amt = @abs(amt);
44		const abs_amt_usize = std.math.cast(usize, abs_amt) orelse std.math.maxInt(usize);
45		if (abs_amt_usize > self.pos) {
46		self.pos = 0;
47		} else {
48		self.pos -= abs_amt_usize;
49		}
50		} else {
51		const amt_usize = std.math.cast(usize, amt) orelse std.math.maxInt(usize);
52		const new_pos = std.math.add(usize, self.pos, amt_usize) catch std.math.maxInt(usize);
53		self.pos = @min(self.buffer.len, new_pos);
54		}
55		}
56
57		pub fn getEndPos(self: *Self) GetSeekPosError!u64 {
58		return self.buffer.len;
59		}
60
61		pub fn getPos(self: *Self) GetSeekPosError!u64 {
62		return self.pos;
63		}
64
65		pub fn reset(self: *Self) void {
66		self.pos = 0;
67		}
68		};
69		}
70
71		pub fn fixedBufferStream(buffer: anytype) FixedBufferStream(Slice(@TypeOf(buffer))) {
72		return .{ .buffer = buffer, .pos = 0 };
73		}
74
75		fn Slice(comptime T: type) type {
76		switch (@typeInfo(T)) {
77		.pointer => \|ptr_info\| {
78		var new_ptr_info = ptr_info;
79		switch (ptr_info.size) {
80		.slice => {},
81		.one => switch (@typeInfo(ptr_info.child)) {
82		.array => \|info\| new_ptr_info.child = info.child,
83		else => @compileError("invalid type given to fixedBufferStream"),
84		},
85		else => @compileError("invalid type given to fixedBufferStream"),
86		}
87		new_ptr_info.size = .slice;
88		return @Type(.{ .pointer = new_ptr_info });
89		},
90		else => @compileError("invalid type given to fixedBufferStream"),
91		}
92		}
93
94		test "input" {
95		const bytes = [_]u8{ 1, 2, 3, 4, 5, 6, 7 };
96		var fbs = fixedBufferStream(&bytes);
97
98		var dest: [4]u8 = undefined;
99
100		var read = try fbs.reader().read(&dest);
101		try testing.expect(read == 4);
102		try testing.expect(mem.eql(u8, dest[0..4], bytes[0..4]));
103
104		read = try fbs.reader().read(&dest);
105		try testing.expect(read == 3);
106		try testing.expect(mem.eql(u8, dest[0..3], bytes[4..7]));
107
108		read = try fbs.reader().read(&dest);
109		try testing.expect(read == 0);
110
111		try fbs.seekTo((try fbs.getEndPos()) + 1);
112		read = try fbs.reader().read(&dest);
113		try testing.expect(read == 0);
114		}

lib/std/Io/test.zig-22

...	...	@@ -1,5 +1,4 @@
1	1	const std = @import("std");
2		const io = std.io;
3	2	const DefaultPrng = std.Random.DefaultPrng;
4	3	const expect = std.testing.expect;
5	4	const expectEqual = std.testing.expectEqual;
...	...	@@ -122,24 +121,3 @@ test "updateTimes" {
122	121	try expect(stat_new.atime < stat_old.atime);
123	122	try expect(stat_new.mtime < stat_old.mtime);
124	123	}
125
126		test "GenericReader methods can return error.EndOfStream" {
127		// https://github.com/ziglang/zig/issues/17733
128		var fbs = std.io.fixedBufferStream("");
129		try std.testing.expectError(
130		error.EndOfStream,
131		fbs.reader().readEnum(enum(u8) { a, b }, .little),
132		);
133		try std.testing.expectError(
134		error.EndOfStream,
135		fbs.reader().isBytes("foo"),
136		);
137		}
138
139		test "Adapted DeprecatedReader EndOfStream" {
140		var fbs: io.FixedBufferStream([]const u8) = .{ .buffer = &.{}, .pos = 0 };
141		const reader = fbs.reader();
142		var buf: [1]u8 = undefined;
143		var adapted = reader.adaptToNewApi(&buf);
144		try std.testing.expectError(error.EndOfStream, adapted.new_interface.takeByte());
145		}

lib/std/Io/tty.zig+2-2

...	...	@@ -76,9 +76,9 @@ pub const Config = union(enum) {
76	76	reset_attributes: u16,
77	77	};
78	78
79		pub const SetColorError = std.os.windows.SetConsoleTextAttributeError \|\| std.io.Writer.Error;
	79	pub const SetColorError = std.os.windows.SetConsoleTextAttributeError \|\| std.Io.Writer.Error;
80	80
81		pub fn setColor(conf: Config, w: *std.io.Writer, color: Color) SetColorError!void {
	81	pub fn setColor(conf: Config, w: *std.Io.Writer, color: Color) SetColorError!void {
82	82	nosuspend switch (conf) {
83	83	.no_color => return,
84	84	.escape_codes => {

lib/std/Progress.zig+1-1

...	...	@@ -9,7 +9,7 @@ const Progress = @This();
9	9	const posix = std.posix;
10	10	const is_big_endian = builtin.cpu.arch.endian() == .big;
11	11	const is_windows = builtin.os.tag == .windows;
12		const Writer = std.io.Writer;
	12	const Writer = std.Io.Writer;
13	13
14	14	/// `null` if the current node (and its children) should
15	15	/// not print on update()

lib/std/SemanticVersion.zig+1-1

...	...	@@ -150,7 +150,7 @@ fn parseNum(text: []const u8) error{ InvalidVersion, Overflow }!usize {
150	150	};
151	151	}
152	152
153		pub fn format(self: Version, w: *std.io.Writer) std.io.Writer.Error!void {
	153	pub fn format(self: Version, w: *std.Io.Writer) std.Io.Writer.Error!void {
154	154	try w.print("{d}.{d}.{d}", .{ self.major, self.minor, self.patch });
155	155	if (self.pre) \|pre\| try w.print("-{s}", .{pre});
156	156	if (self.build) \|build\| try w.print("+{s}", .{build});

lib/std/Target.zig+1-1

...	...	@@ -311,7 +311,7 @@ pub const Os = struct {
311	311
312	312	/// This function is defined to serialize a Zig source code representation of this
313	313	/// type, that, when parsed, will deserialize into the same data.
314		pub fn format(wv: WindowsVersion, w: *std.io.Writer) std.io.Writer.Error!void {
	314	pub fn format(wv: WindowsVersion, w: *std.Io.Writer) std.Io.Writer.Error!void {
315	315	if (std.enums.tagName(WindowsVersion, wv)) \|name\| {
316	316	var vecs: [2][]const u8 = .{ ".", name };
317	317	return w.writeVecAll(&vecs);

lib/std/Thread.zig+4-2

...	...	@@ -280,8 +280,10 @@ pub fn getName(self: Thread, buffer_ptr: *[max_name_len:0]u8) GetNameError!?[]co
280	280	const file = try std.fs.cwd().openFile(path, .{});
281	281	defer file.close();
282	282
283		const data_len = try file.deprecatedReader().readAll(buffer_ptr[0 .. max_name_len + 1]);
284
	283	var file_reader = file.readerStreaming(&.{});
	284	const data_len = file_reader.interface.readSliceShort(buffer_ptr[0 .. max_name_len + 1]) catch \|err\| switch (err) {
	285	error.ReadFailed => return file_reader.err.?,
	286	};
285	287	return if (data_len >= 1) buffer[0 .. data_len - 1] else null;
286	288	},
287	289	.windows => {

lib/std/array_list.zig+6-4

...	...	@@ -405,6 +405,7 @@ pub fn AlignedManaged(comptime T: type, comptime alignment: ?mem.Alignment) type
405	405	return;
406	406	}
407	407
	408	// Protects growing unnecessarily since better_capacity will be larger.
408	409	if (self.capacity >= new_capacity) return;
409	410
410	411	const better_capacity = Aligned(T, alignment).growCapacity(self.capacity, new_capacity);
...	...	@@ -664,9 +665,10 @@ pub fn Aligned(comptime T: type, comptime alignment: ?mem.Alignment) type {
664	665
665	666	/// The caller owns the returned memory. ArrayList becomes empty.
666	667	pub fn toOwnedSliceSentinel(self: *Self, gpa: Allocator, comptime sentinel: T) Allocator.Error!SentinelSlice(sentinel) {
667		// This addition can never overflow because `self.items` can never occupy the whole address space
	668	// This addition can never overflow because `self.items` can never occupy the whole address space.
668	669	try self.ensureTotalCapacityPrecise(gpa, self.items.len + 1);
669	670	self.appendAssumeCapacity(sentinel);
	671	errdefer self.items.len -= 1;
670	672	const result = try self.toOwnedSlice(gpa);
671	673	return result[0 .. result.len - 1 :sentinel];
672	674	}
...	...	@@ -1038,14 +1040,14 @@ pub fn Aligned(comptime T: type, comptime alignment: ?mem.Alignment) type {
1038	1040
1039	1041	pub fn printAssumeCapacity(self: *Self, comptime fmt: []const u8, args: anytype) void {
1040	1042	comptime assert(T == u8);
1041		var w: std.io.Writer = .fixed(self.unusedCapacitySlice());
	1043	var w: std.Io.Writer = .fixed(self.unusedCapacitySlice());
1042	1044	w.print(fmt, args) catch unreachable;
1043	1045	self.items.len += w.end;
1044	1046	}
1045	1047
1046	1048	pub fn printBounded(self: *Self, comptime fmt: []const u8, args: anytype) error{OutOfMemory}!void {
1047	1049	comptime assert(T == u8);
1048		var w: std.io.Writer = .fixed(self.unusedCapacitySlice());
	1050	var w: std.Io.Writer = .fixed(self.unusedCapacitySlice());
1049	1051	w.print(fmt, args) catch return error.OutOfMemory;
1050	1052	self.items.len += w.end;
1051	1053	}
...	...	@@ -1361,7 +1363,7 @@ pub fn Aligned(comptime T: type, comptime alignment: ?mem.Alignment) type {
1361	1363
1362	1364	/// Called when memory growth is necessary. Returns a capacity larger than
1363	1365	/// minimum that grows super-linearly.
1364		fn growCapacity(current: usize, minimum: usize) usize {
	1366	pub fn growCapacity(current: usize, minimum: usize) usize {
1365	1367	var new = current;
1366	1368	while (true) {
1367	1369	new +\|= new / 2 + init_capacity;

lib/std/ascii.zig+1-1

...	...	@@ -444,7 +444,7 @@ pub const HexEscape = struct {
444	444	pub const upper_charset = "0123456789ABCDEF";
445	445	pub const lower_charset = "0123456789abcdef";
446	446
447		pub fn format(se: HexEscape, w: *std.io.Writer) std.io.Writer.Error!void {
	447	pub fn format(se: HexEscape, w: *std.Io.Writer) std.Io.Writer.Error!void {
448	448	const charset = se.charset;
449	449
450	450	var buf: [4]u8 = undefined;

lib/std/builtin.zig+2-2

...	...	@@ -38,7 +38,7 @@ pub const StackTrace = struct {
38	38	index: usize,
39	39	instruction_addresses: []usize,
40	40
41		pub fn format(self: StackTrace, writer: *std.io.Writer) std.io.Writer.Error!void {
	41	pub fn format(self: StackTrace, writer: *std.Io.Writer) std.Io.Writer.Error!void {
42	42	// TODO: re-evaluate whether to use format() methods at all.
43	43	// Until then, avoid an error when using GeneralPurposeAllocator with WebAssembly
44	44	// where it tries to call detectTTYConfig here.
...	...	@@ -47,7 +47,7 @@ pub const StackTrace = struct {
47	47	const debug_info = std.debug.getSelfDebugInfo() catch \|err\| {
48	48	return writer.print("\nUnable to print stack trace: Unable to open debug info: {s}\n", .{@errorName(err)});
49	49	};
50		const tty_config = std.io.tty.detectConfig(std.fs.File.stderr());
	50	const tty_config = std.Io.tty.detectConfig(std.fs.File.stderr());
51	51	try writer.writeAll("\n");
52	52	std.debug.writeStackTrace(self, writer, debug_info, tty_config) catch \|err\| {
53	53	try writer.print("Unable to print stack trace: {s}\n", .{@errorName(err)});

lib/std/coff.zig+15-20

...	...	@@ -1087,14 +1087,11 @@ pub const Coff = struct {
1087	1087	const pe_pointer_offset = 0x3C;
1088	1088	const pe_magic = "PE\x00\x00";
1089	1089
1090		var stream = std.io.fixedBufferStream(data);
1091		const reader = stream.reader();
1092		try stream.seekTo(pe_pointer_offset);
1093		const coff_header_offset = try reader.readInt(u32, .little);
1094		try stream.seekTo(coff_header_offset);
1095		var buf: [4]u8 = undefined;
1096		try reader.readNoEof(&buf);
1097		const is_image = mem.eql(u8, pe_magic, &buf);
	1090	var reader: std.Io.Reader = .fixed(data);
	1091	reader.seek = pe_pointer_offset;
	1092	const coff_header_offset = try reader.takeInt(u32, .little);
	1093	reader.seek = coff_header_offset;
	1094	const is_image = mem.eql(u8, pe_magic, try reader.takeArray(4));
1098	1095
1099	1096	var coff = @This(){
1100	1097	.data = data,
...	...	@@ -1123,16 +1120,15 @@ pub const Coff = struct {
1123	1120	if (@intFromEnum(DirectoryEntry.DEBUG) >= data_dirs.len) return null;
1124	1121
1125	1122	const debug_dir = data_dirs[@intFromEnum(DirectoryEntry.DEBUG)];
1126		var stream = std.io.fixedBufferStream(self.data);
1127		const reader = stream.reader();
	1123	var reader: std.Io.Reader = .fixed(self.data);
1128	1124
1129	1125	if (self.is_loaded) {
1130		try stream.seekTo(debug_dir.virtual_address);
	1126	reader.seek = debug_dir.virtual_address;
1131	1127	} else {
1132	1128	// Find what section the debug_dir is in, in order to convert the RVA to a file offset
1133	1129	for (self.getSectionHeaders()) \|*sect\| {
1134	1130	if (debug_dir.virtual_address >= sect.virtual_address and debug_dir.virtual_address < sect.virtual_address + sect.virtual_size) {
1135		try stream.seekTo(sect.pointer_to_raw_data + (debug_dir.virtual_address - sect.virtual_address));
	1131	reader.seek = sect.pointer_to_raw_data + (debug_dir.virtual_address - sect.virtual_address);
1136	1132	break;
1137	1133	}
1138	1134	} else return error.InvalidDebugDirectory;
...	...	@@ -1143,24 +1139,23 @@ pub const Coff = struct {
1143	1139	const debug_dir_entry_count = debug_dir.size / @sizeOf(DebugDirectoryEntry);
1144	1140	var i: u32 = 0;
1145	1141	while (i < debug_dir_entry_count) : (i += 1) {
1146		const debug_dir_entry = try reader.readStruct(DebugDirectoryEntry);
	1142	const debug_dir_entry = try reader.takeStruct(DebugDirectoryEntry, .little);
1147	1143	if (debug_dir_entry.type == .CODEVIEW) {
1148	1144	const dir_offset = if (self.is_loaded) debug_dir_entry.address_of_raw_data else debug_dir_entry.pointer_to_raw_data;
1149		try stream.seekTo(dir_offset);
	1145	reader.seek = dir_offset;
1150	1146	break;
1151	1147	}
1152	1148	} else return null;
1153	1149
1154		var cv_signature: [4]u8 = undefined; // CodeView signature
1155		try reader.readNoEof(cv_signature[0..]);
	1150	const code_view_signature = try reader.takeArray(4);
1156	1151	// 'RSDS' indicates PDB70 format, used by lld.
1157		if (!mem.eql(u8, &cv_signature, "RSDS"))
	1152	if (!mem.eql(u8, code_view_signature, "RSDS"))
1158	1153	return error.InvalidPEMagic;
1159		try reader.readNoEof(self.guid[0..]);
1160		self.age = try reader.readInt(u32, .little);
	1154	try reader.readSliceAll(self.guid[0..]);
	1155	self.age = try reader.takeInt(u32, .little);
1161	1156
1162	1157	// Finally read the null-terminated string.
1163		const start = reader.context.pos;
	1158	const start = reader.seek;
1164	1159	const len = std.mem.indexOfScalar(u8, self.data[start..], 0) orelse return null;
1165	1160	return self.data[start .. start + len];
1166	1161	}

lib/std/compress/flate/BlockWriter.zig+1-2

...	...	@@ -1,9 +1,8 @@
1	1	//! Accepts list of tokens, decides what is best block type to write. What block
2	2	//! type will provide best compression. Writes header and body of the block.
3	3	const std = @import("std");
4		const io = std.io;
5	4	const assert = std.debug.assert;
6		const Writer = std.io.Writer;
	5	const Writer = std.Io.Writer;
7	6
8	7	const BlockWriter = @This();
9	8	const flate = @import("../flate.zig");

lib/std/compress/zstd/Decompress.zig+3-3

...	...	@@ -1,10 +1,10 @@
1	1	const Decompress = @This();
2	2	const std = @import("std");
3	3	const assert = std.debug.assert;
4		const Reader = std.io.Reader;
5		const Limit = std.io.Limit;
	4	const Reader = std.Io.Reader;
	5	const Limit = std.Io.Limit;
6	6	const zstd = @import("../zstd.zig");
7		const Writer = std.io.Writer;
	7	const Writer = std.Io.Writer;
8	8
9	9	input: *Reader,
10	10	reader: Reader,

lib/std/crypto/Certificate/Bundle/macos.zig+50-45

...	...	@@ -11,76 +11,81 @@ pub fn rescanMac(cb: *Bundle, gpa: Allocator) RescanMacError!void {
11	11	cb.bytes.clearRetainingCapacity();
12	12	cb.map.clearRetainingCapacity();
13	13
14		const keychainPaths = [2][]const u8{
	14	const keychain_paths = [2][]const u8{
15	15	"/System/Library/Keychains/SystemRootCertificates.keychain",
16	16	"/Library/Keychains/System.keychain",
17	17	};
18	18
19		for (keychainPaths) \|keychainPath\| {
20		const file = try fs.openFileAbsolute(keychainPath, .{});
21		defer file.close();
22
23		const bytes = try file.readToEndAlloc(gpa, std.math.maxInt(u32));
	19	for (keychain_paths) \|keychain_path\| {
	20	const bytes = std.fs.cwd().readFileAlloc(keychain_path, gpa, .limited(std.math.maxInt(u32))) catch \|err\| switch (err) {
	21	error.StreamTooLong => return error.FileTooBig,
	22	else => \|e\| return e,
	23	};
24	24	defer gpa.free(bytes);
25	25
26		var stream = std.io.fixedBufferStream(bytes);
27		const reader = stream.reader();
	26	var reader: std.Io.Reader = .fixed(bytes);
	27	scanReader(cb, gpa, &reader) catch \|err\| switch (err) {
	28	error.ReadFailed => unreachable, // prebuffered
	29	else => \|e\| return e,
	30	};
	31	}
28	32
29		const db_header = try reader.readStructEndian(ApplDbHeader, .big);
30		assert(mem.eql(u8, &db_header.signature, "kych"));
	33	cb.bytes.shrinkAndFree(gpa, cb.bytes.items.len);
	34	}
31	35
32		try stream.seekTo(db_header.schema_offset);
	36	fn scanReader(cb: Bundle, gpa: Allocator, reader: std.Io.Reader) !void {
	37	const db_header = try reader.takeStruct(ApplDbHeader, .big);
	38	assert(mem.eql(u8, &db_header.signature, "kych"));
33	39
34		const db_schema = try reader.readStructEndian(ApplDbSchema, .big);
	40	reader.seek = db_header.schema_offset;
35	41
36		var table_list = try gpa.alloc(u32, db_schema.table_count);
37		defer gpa.free(table_list);
	42	const db_schema = try reader.takeStruct(ApplDbSchema, .big);
38	43
39		var table_idx: u32 = 0;
40		while (table_idx < table_list.len) : (table_idx += 1) {
41		table_list[table_idx] = try reader.readInt(u32, .big);
42		}
	44	var table_list = try gpa.alloc(u32, db_schema.table_count);
	45	defer gpa.free(table_list);
43	46
44		const now_sec = std.time.timestamp();
	47	var table_idx: u32 = 0;
	48	while (table_idx < table_list.len) : (table_idx += 1) {
	49	table_list[table_idx] = try reader.takeInt(u32, .big);
	50	}
45	51
46		for (table_list) \|table_offset\| {
47		try stream.seekTo(db_header.schema_offset + table_offset);
	52	const now_sec = std.time.timestamp();
48	53
49		const table_header = try reader.readStructEndian(TableHeader, .big);
	54	for (table_list) \|table_offset\| {
	55	reader.seek = db_header.schema_offset + table_offset;
50	56
51		if (@as(std.c.DB_RECORDTYPE, @enumFromInt(table_header.table_id)) != .X509_CERTIFICATE) {
52		continue;
53		}
	57	const table_header = try reader.takeStruct(TableHeader, .big);
54	58
55		var record_list = try gpa.alloc(u32, table_header.record_count);
56		defer gpa.free(record_list);
	59	if (@as(std.c.DB_RECORDTYPE, @enumFromInt(table_header.table_id)) != .X509_CERTIFICATE) {
	60	continue;
	61	}
	62
	63	var record_list = try gpa.alloc(u32, table_header.record_count);
	64	defer gpa.free(record_list);
57	65
58		var record_idx: u32 = 0;
59		while (record_idx < record_list.len) : (record_idx += 1) {
60		record_list[record_idx] = try reader.readInt(u32, .big);
61		}
	66	var record_idx: u32 = 0;
	67	while (record_idx < record_list.len) : (record_idx += 1) {
	68	record_list[record_idx] = try reader.takeInt(u32, .big);
	69	}
62	70
63		for (record_list) \|record_offset\| {
64		// An offset of zero means that the record is not present.
65		// An offset that is not 4-byte-aligned is invalid.
66		if (record_offset == 0 or record_offset % 4 != 0) continue;
	71	for (record_list) \|record_offset\| {
	72	// An offset of zero means that the record is not present.
	73	// An offset that is not 4-byte-aligned is invalid.
	74	if (record_offset == 0 or record_offset % 4 != 0) continue;
67	75
68		try stream.seekTo(db_header.schema_offset + table_offset + record_offset);
	76	reader.seek = db_header.schema_offset + table_offset + record_offset;
69	77
70		const cert_header = try reader.readStructEndian(X509CertHeader, .big);
	78	const cert_header = try reader.takeStruct(X509CertHeader, .big);
71	79
72		if (cert_header.cert_size == 0) continue;
	80	if (cert_header.cert_size == 0) continue;
73	81
74		const cert_start = @as(u32, @intCast(cb.bytes.items.len));
75		const dest_buf = try cb.bytes.addManyAsSlice(gpa, cert_header.cert_size);
76		try reader.readNoEof(dest_buf);
	82	const cert_start: u32 = @intCast(cb.bytes.items.len);
	83	const dest_buf = try cb.bytes.addManyAsSlice(gpa, cert_header.cert_size);
	84	try reader.readSliceAll(dest_buf);
77	85
78		try cb.parseCert(gpa, cert_start, now_sec);
79		}
	86	try cb.parseCert(gpa, cert_start, now_sec);
80	87	}
81	88	}
82
83		cb.bytes.shrinkAndFree(gpa, cb.bytes.items.len);
84	89	}
85	90
86	91	const ApplDbHeader = extern struct {

lib/std/crypto/codecs/asn1.zig+13-15

...	...	@@ -69,15 +69,15 @@ pub const Tag = struct {
69	69	return .{ .number = number, .constructed = constructed, .class = .universal };
70	70	}
71	71
72		pub fn decode(reader: anytype) !Tag {
73		const tag1: FirstTag = @bitCast(try reader.readByte());
	72	pub fn decode(reader: *std.Io.Reader) !Tag {
	73	const tag1: FirstTag = @bitCast(try reader.takeByte());
74	74	var number: u14 = tag1.number;
75	75
76	76	if (tag1.number == 15) {
77		const tag2: NextTag = @bitCast(try reader.readByte());
	77	const tag2: NextTag = @bitCast(try reader.takeByte());
78	78	number = tag2.number;
79	79	if (tag2.continues) {
80		const tag3: NextTag = @bitCast(try reader.readByte());
	80	const tag3: NextTag = @bitCast(try reader.takeByte());
81	81	number = (number << 7) + tag3.number;
82	82	if (tag3.continues) return error.InvalidLength;
83	83	}
...	...	@@ -90,7 +90,7 @@ pub const Tag = struct {
90	90	};
91	91	}
92	92
93		pub fn encode(self: Tag, writer: anytype) @TypeOf(writer).Error!void {
	93	pub fn encode(self: Tag, writer: *std.Io.Writer) @TypeOf(writer).Error!void {
94	94	var tag1 = FirstTag{
95	95	.number = undefined,
96	96	.constructed = self.constructed,
...	...	@@ -98,8 +98,7 @@ pub const Tag = struct {
98	98	};
99	99
100	100	var buffer: [3]u8 = undefined;
101		var stream = std.io.fixedBufferStream(&buffer);
102		var writer2 = stream.writer();
	101	var writer2: std.Io.Writer = .init(&buffer);
103	102
104	103	switch (@intFromEnum(self.number)) {
105	104	0...std.math.maxInt(u5) => \|n\| {
...	...	@@ -122,7 +121,7 @@ pub const Tag = struct {
122	121	},
123	122	}
124	123
125		_ = try writer.write(stream.getWritten());
	124	_ = try writer.write(writer2.buffered());
126	125	}
127	126
128	127	const FirstTag = packed struct(u8) { number: u5, constructed: bool, class: Tag.Class };
...	...	@@ -161,8 +160,8 @@ pub const Tag = struct {
161	160
162	161	test Tag {
163	162	const buf = [_]u8{0xa3};
164		var stream = std.io.fixedBufferStream(&buf);
165		const t = Tag.decode(stream.reader());
	163	var reader: std.Io.Reader = .fixed(&buf);
	164	const t = Tag.decode(&reader);
166	165	try std.testing.expectEqual(Tag.init(@enumFromInt(3), true, .context_specific), t);
167	166	}
168	167
...	...	@@ -191,11 +190,10 @@ pub const Element = struct {
191	190	/// - Ensures length is within `bytes`
192	191	/// - Ensures length is less than `std.math.maxInt(Index)`
193	192	pub fn decode(bytes: []const u8, index: Index) DecodeError!Element {
194		var stream = std.io.fixedBufferStream(bytes[index..]);
195		var reader = stream.reader();
	193	var reader: std.Io.Reader = .fixed(bytes[index..]);
196	194
197		const tag = try Tag.decode(reader);
198		const size_or_len_size = try reader.readByte();
	195	const tag = try Tag.decode(&reader);
	196	const size_or_len_size = try reader.takeByte();
199	197
200	198	var start = index + 2;
201	199	var end = start + size_or_len_size;
...	...	@@ -208,7 +206,7 @@ pub const Element = struct {
208	206	start += len_size;
209	207	if (len_size > @sizeOf(Index)) return error.InvalidLength;
210	208
211		const len = try reader.readVarInt(Index, .big, len_size);
	209	const len = try reader.takeVarInt(Index, .big, len_size);
212	210	if (len < 128) return error.InvalidLength; // should have used short form
213	211
214	212	end = std.math.add(Index, start, len) catch return error.InvalidLength;

lib/std/crypto/codecs/asn1/Oid.zig+6-7

...	...	@@ -4,7 +4,7 @@
4	4	//! organizations, or policy documents.
5	5	encoded: []const u8,
6	6
7		pub const InitError = std.fmt.ParseIntError \|\| error{MissingPrefix} \|\| std.io.FixedBufferStream(u8).WriteError;
	7	pub const InitError = std.fmt.ParseIntError \|\| error{MissingPrefix} \|\| std.Io.Writer.Error;
8	8
9	9	pub fn fromDot(dot_notation: []const u8, out: []u8) InitError!Oid {
10	10	var split = std.mem.splitScalar(u8, dot_notation, '.');
...	...	@@ -14,8 +14,7 @@ pub fn fromDot(dot_notation: []const u8, out: []u8) InitError!Oid {
14	14	const first = try std.fmt.parseInt(u8, first_str, 10);
15	15	const second = try std.fmt.parseInt(u8, second_str, 10);
16	16
17		var stream = std.io.fixedBufferStream(out);
18		var writer = stream.writer();
	17	var writer: std.Io.Writer = .fixed(out);
19	18
20	19	try writer.writeByte(first * 40 + second);
21	20
...	...	@@ -37,7 +36,7 @@ pub fn fromDot(dot_notation: []const u8, out: []u8) InitError!Oid {
37	36	i += 1;
38	37	}
39	38
40		return .{ .encoded = stream.getWritten() };
	39	return .{ .encoded = writer.buffered() };
41	40	}
42	41
43	42	test fromDot {
...	...	@@ -80,9 +79,9 @@ test toDot {
80	79	var buf: [256]u8 = undefined;
81	80
82	81	for (test_cases) \|t\| {
83		var stream = std.io.fixedBufferStream(&buf);
84		try toDot(Oid{ .encoded = t.encoded }, stream.writer());
85		try std.testing.expectEqualStrings(t.dot_notation, stream.getWritten());
	82	var stream: std.Io.Writer = .fixed(&buf);
	83	try toDot(Oid{ .encoded = t.encoded }, &stream);
	84	try std.testing.expectEqualStrings(t.dot_notation, stream.written());
86	85	}
87	86	}
88	87

lib/std/crypto/ecdsa.zig+12-17

...	...	@@ -2,7 +2,6 @@ const builtin = @import("builtin");
2	2	const std = @import("std");
3	3	const crypto = std.crypto;
4	4	const fmt = std.fmt;
5		const io = std.io;
6	5	const mem = std.mem;
7	6	const sha3 = crypto.hash.sha3;
8	7	const testing = std.testing;
...	...	@@ -135,8 +134,7 @@ pub fn Ecdsa(comptime Curve: type, comptime Hash: type) type {
135	134	/// The maximum length of the DER encoding is der_encoded_length_max.
136	135	/// The function returns a slice, that can be shorter than der_encoded_length_max.
137	136	pub fn toDer(sig: Signature, buf: *[der_encoded_length_max]u8) []u8 {
138		var fb = io.fixedBufferStream(buf);
139		const w = fb.writer();
	137	var w: std.Io.Writer = .fixed(buf);
140	138	const r_len = @as(u8, @intCast(sig.r.len + (sig.r[0] >> 7)));
141	139	const s_len = @as(u8, @intCast(sig.s.len + (sig.s[0] >> 7)));
142	140	const seq_len = @as(u8, @intCast(2 + r_len + 2 + s_len));
...	...	@@ -151,24 +149,23 @@ pub fn Ecdsa(comptime Curve: type, comptime Hash: type) type {
151	149	w.writeByte(0x00) catch unreachable;
152	150	}
153	151	w.writeAll(&sig.s) catch unreachable;
154		return fb.getWritten();
	152	return w.buffered();
155	153	}
156	154
157	155	// Read a DER-encoded integer.
158		fn readDerInt(out: []u8, reader: anytype) EncodingError!void {
159		var buf: [2]u8 = undefined;
160		_ = reader.readNoEof(&buf) catch return error.InvalidEncoding;
	156	fn readDerInt(out: []u8, reader: *std.Io.Reader) EncodingError!void {
	157	const buf = reader.takeArray(2) catch return error.InvalidEncoding;
161	158	if (buf[0] != 0x02) return error.InvalidEncoding;
162		var expected_len = @as(usize, buf[1]);
	159	var expected_len: usize = buf[1];
163	160	if (expected_len == 0 or expected_len > 1 + out.len) return error.InvalidEncoding;
164	161	var has_top_bit = false;
165	162	if (expected_len == 1 + out.len) {
166		if ((reader.readByte() catch return error.InvalidEncoding) != 0) return error.InvalidEncoding;
	163	if ((reader.takeByte() catch return error.InvalidEncoding) != 0) return error.InvalidEncoding;
167	164	expected_len -= 1;
168	165	has_top_bit = true;
169	166	}
170	167	const out_slice = out[out.len - expected_len ..];
171		reader.readNoEof(out_slice) catch return error.InvalidEncoding;
	168	reader.readSliceAll(out_slice) catch return error.InvalidEncoding;
172	169	if (@intFromBool(has_top_bit) != out[0] >> 7) return error.InvalidEncoding;
173	170	}
174	171
...	...	@@ -176,16 +173,14 @@ pub fn Ecdsa(comptime Curve: type, comptime Hash: type) type {
176	173	/// Returns InvalidEncoding if the DER encoding is invalid.
177	174	pub fn fromDer(der: []const u8) EncodingError!Signature {
178	175	var sig: Signature = mem.zeroInit(Signature, .{});
179		var fb = io.fixedBufferStream(der);
180		const reader = fb.reader();
181		var buf: [2]u8 = undefined;
182		_ = reader.readNoEof(&buf) catch return error.InvalidEncoding;
	176	var reader: std.Io.Reader = .fixed(der);
	177	const buf = reader.takeArray(2) catch return error.InvalidEncoding;
183	178	if (buf[0] != 0x30 or @as(usize, buf[1]) + 2 != der.len) {
184	179	return error.InvalidEncoding;
185	180	}
186		try readDerInt(&sig.r, reader);
187		try readDerInt(&sig.s, reader);
188		if (fb.getPos() catch unreachable != der.len) return error.InvalidEncoding;
	181	try readDerInt(&sig.r, &reader);
	182	try readDerInt(&sig.s, &reader);
	183	if (reader.seek != der.len) return error.InvalidEncoding;
189	184
190	185	return sig;
191	186	}

lib/std/crypto/phc_encoding.zig-1

...	...	@@ -2,7 +2,6 @@
2	2
3	3	const std = @import("std");
4	4	const fmt = std.fmt;
5		const io = std.io;
6	5	const mem = std.mem;
7	6	const meta = std.meta;
8	7	const Writer = std.Io.Writer;

lib/std/crypto/scrypt.zig-1

...	...	@@ -5,7 +5,6 @@
5	5	const std = @import("std");
6	6	const crypto = std.crypto;
7	7	const fmt = std.fmt;
8		const io = std.io;
9	8	const math = std.math;
10	9	const mem = std.mem;
11	10	const meta = std.meta;

lib/std/crypto/tls.zig+2-2

...	...	@@ -655,7 +655,7 @@ pub const Decoder = struct {
655	655	}
656	656
657	657	/// Use this function to increase `their_end`.
658		pub fn readAtLeast(d: Decoder, stream: std.io.Reader, their_amt: usize) !void {
	658	pub fn readAtLeast(d: Decoder, stream: std.Io.Reader, their_amt: usize) !void {
659	659	assert(!d.disable_reads);
660	660	const existing_amt = d.cap - d.idx;
661	661	d.their_end = d.idx + their_amt;
...	...	@@ -672,7 +672,7 @@ pub const Decoder = struct {
672	672
673	673	/// Same as `readAtLeast` but also increases `our_end` by exactly `our_amt`.
674	674	/// Use when `our_amt` is calculated by us, not by them.
675		pub fn readAtLeastOurAmt(d: Decoder, stream: std.io.Reader, our_amt: usize) !void {
	675	pub fn readAtLeastOurAmt(d: Decoder, stream: std.Io.Reader, our_amt: usize) !void {
676	676	assert(!d.disable_reads);
677	677	try readAtLeast(d, stream, our_amt);
678	678	d.our_end = d.idx + our_amt;

lib/std/debug.zig+19-19

...	...	@@ -2,7 +2,6 @@ const builtin = @import("builtin");
2	2	const std = @import("std.zig");
3	3	const math = std.math;
4	4	const mem = std.mem;
5		const io = std.io;
6	5	const posix = std.posix;
7	6	const fs = std.fs;
8	7	const testing = std.testing;
...	...	@@ -12,7 +11,8 @@ const windows = std.os.windows;
12	11	const native_arch = builtin.cpu.arch;
13	12	const native_os = builtin.os.tag;
14	13	const native_endian = native_arch.endian();
15		const Writer = std.io.Writer;
	14	const Writer = std.Io.Writer;
	15	const tty = std.Io.tty;
16	16
17	17	pub const Dwarf = @import("debug/Dwarf.zig");
18	18	pub const Pdb = @import("debug/Pdb.zig");
...	...	@@ -246,12 +246,12 @@ pub fn getSelfDebugInfo() !*SelfInfo {
246	246	pub fn dumpHex(bytes: []const u8) void {
247	247	const bw = lockStderrWriter(&.{});
248	248	defer unlockStderrWriter();
249		const ttyconf = std.io.tty.detectConfig(.stderr());
	249	const ttyconf = tty.detectConfig(.stderr());
250	250	dumpHexFallible(bw, ttyconf, bytes) catch {};
251	251	}
252	252
253	253	/// Prints a hexadecimal view of the bytes, returning any error that occurs.
254		pub fn dumpHexFallible(bw: *Writer, ttyconf: std.io.tty.Config, bytes: []const u8) !void {
	254	pub fn dumpHexFallible(bw: *Writer, ttyconf: tty.Config, bytes: []const u8) !void {
255	255	var chunks = mem.window(u8, bytes, 16, 16);
256	256	while (chunks.next()) \|window\| {
257	257	// 1. Print the address.
...	...	@@ -302,7 +302,7 @@ pub fn dumpHexFallible(bw: *Writer, ttyconf: std.io.tty.Config, bytes: []const u
302	302
303	303	test dumpHexFallible {
304	304	const bytes: []const u8 = &.{ 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, 0x01, 0x12, 0x13 };
305		var aw: std.io.Writer.Allocating = .init(std.testing.allocator);
	305	var aw: Writer.Allocating = .init(std.testing.allocator);
306	306	defer aw.deinit();
307	307
308	308	try dumpHexFallible(&aw.writer, .no_color, bytes);
...	...	@@ -342,7 +342,7 @@ pub fn dumpCurrentStackTraceToWriter(start_addr: ?usize, writer: *Writer) !void
342	342	try writer.print("Unable to dump stack trace: Unable to open debug info: {s}\n", .{@errorName(err)});
343	343	return;
344	344	};
345		writeCurrentStackTrace(writer, debug_info, io.tty.detectConfig(.stderr()), start_addr) catch \|err\| {
	345	writeCurrentStackTrace(writer, debug_info, tty.detectConfig(.stderr()), start_addr) catch \|err\| {
346	346	try writer.print("Unable to dump stack trace: {s}\n", .{@errorName(err)});
347	347	return;
348	348	};
...	...	@@ -427,7 +427,7 @@ pub fn dumpStackTraceFromBase(context: ThreadContext, stderr: Writer) void {
427	427	stderr.print("Unable to dump stack trace: Unable to open debug info: {s}\n", .{@errorName(err)}) catch return;
428	428	return;
429	429	};
430		const tty_config = io.tty.detectConfig(.stderr());
	430	const tty_config = tty.detectConfig(.stderr());
431	431	if (native_os == .windows) {
432	432	// On x86_64 and aarch64, the stack will be unwound using RtlVirtualUnwind using the context
433	433	// provided by the exception handler. On x86, RtlVirtualUnwind doesn't exist. Instead, a new backtrace
...	...	@@ -533,7 +533,7 @@ pub fn dumpStackTrace(stack_trace: std.builtin.StackTrace) void {
533	533	stderr.print("Unable to dump stack trace: Unable to open debug info: {s}\n", .{@errorName(err)}) catch return;
534	534	return;
535	535	};
536		writeStackTrace(stack_trace, stderr, debug_info, io.tty.detectConfig(.stderr())) catch \|err\| {
	536	writeStackTrace(stack_trace, stderr, debug_info, tty.detectConfig(.stderr())) catch \|err\| {
537	537	stderr.print("Unable to dump stack trace: {s}\n", .{@errorName(err)}) catch return;
538	538	return;
539	539	};
...	...	@@ -738,7 +738,7 @@ pub fn writeStackTrace(
738	738	stack_trace: std.builtin.StackTrace,
739	739	writer: *Writer,
740	740	debug_info: *SelfInfo,
741		tty_config: io.tty.Config,
	741	tty_config: tty.Config,
742	742	) !void {
743	743	if (builtin.strip_debug_info) return error.MissingDebugInfo;
744	744	var frame_index: usize = 0;
...	...	@@ -959,7 +959,7 @@ pub const StackIterator = struct {
959	959	pub fn writeCurrentStackTrace(
960	960	writer: *Writer,
961	961	debug_info: *SelfInfo,
962		tty_config: io.tty.Config,
	962	tty_config: tty.Config,
963	963	start_addr: ?usize,
964	964	) !void {
965	965	if (native_os == .windows) {
...	...	@@ -1047,7 +1047,7 @@ pub noinline fn walkStackWindows(addresses: []usize, existing_context: ?*const w
1047	1047	pub fn writeStackTraceWindows(
1048	1048	writer: *Writer,
1049	1049	debug_info: *SelfInfo,
1050		tty_config: io.tty.Config,
	1050	tty_config: tty.Config,
1051	1051	context: *const windows.CONTEXT,
1052	1052	start_addr: ?usize,
1053	1053	) !void {
...	...	@@ -1065,7 +1065,7 @@ pub fn writeStackTraceWindows(
1065	1065	}
1066	1066	}
1067	1067
1068		fn printUnknownSource(debug_info: SelfInfo, writer: Writer, address: usize, tty_config: io.tty.Config) !void {
	1068	fn printUnknownSource(debug_info: SelfInfo, writer: Writer, address: usize, tty_config: tty.Config) !void {
1069	1069	const module_name = debug_info.getModuleNameForAddress(address);
1070	1070	return printLineInfo(
1071	1071	writer,
...	...	@@ -1078,14 +1078,14 @@ fn printUnknownSource(debug_info: SelfInfo, writer: Writer, address: usize, tt
1078	1078	);
1079	1079	}
1080	1080
1081		fn printLastUnwindError(it: StackIterator, debug_info: SelfInfo, writer: *Writer, tty_config: io.tty.Config) void {
	1081	fn printLastUnwindError(it: StackIterator, debug_info: SelfInfo, writer: *Writer, tty_config: tty.Config) void {
1082	1082	if (!have_ucontext) return;
1083	1083	if (it.getLastError()) \|unwind_error\| {
1084	1084	printUnwindError(debug_info, writer, unwind_error.address, unwind_error.err, tty_config) catch {};
1085	1085	}
1086	1086	}
1087	1087
1088		fn printUnwindError(debug_info: SelfInfo, writer: Writer, address: usize, err: UnwindError, tty_config: io.tty.Config) !void {
	1088	fn printUnwindError(debug_info: SelfInfo, writer: Writer, address: usize, err: UnwindError, tty_config: tty.Config) !void {
1089	1089	const module_name = debug_info.getModuleNameForAddress(address) orelse "???";
1090	1090	try tty_config.setColor(writer, .dim);
1091	1091	if (err == error.MissingDebugInfo) {
...	...	@@ -1096,7 +1096,7 @@ fn printUnwindError(debug_info: SelfInfo, writer: Writer, address: usize, err:
1096	1096	try tty_config.setColor(writer, .reset);
1097	1097	}
1098	1098
1099		pub fn printSourceAtAddress(debug_info: SelfInfo, writer: Writer, address: usize, tty_config: io.tty.Config) !void {
	1099	pub fn printSourceAtAddress(debug_info: SelfInfo, writer: Writer, address: usize, tty_config: tty.Config) !void {
1100	1100	const module = debug_info.getModuleForAddress(address) catch \|err\| switch (err) {
1101	1101	error.MissingDebugInfo, error.InvalidDebugInfo => return printUnknownSource(debug_info, writer, address, tty_config),
1102	1102	else => return err,
...	...	@@ -1125,7 +1125,7 @@ fn printLineInfo(
1125	1125	address: usize,
1126	1126	symbol_name: []const u8,
1127	1127	compile_unit_name: []const u8,
1128		tty_config: io.tty.Config,
	1128	tty_config: tty.Config,
1129	1129	comptime printLineFromFile: anytype,
1130	1130	) !void {
1131	1131	nosuspend {
...	...	@@ -1597,10 +1597,10 @@ test "manage resources correctly" {
1597	1597	// self-hosted debug info is still too buggy
1598	1598	if (builtin.zig_backend != .stage2_llvm) return error.SkipZigTest;
1599	1599
1600		var discarding: std.io.Writer.Discarding = .init(&.{});
	1600	var discarding: Writer.Discarding = .init(&.{});
1601	1601	var di = try SelfInfo.open(testing.allocator);
1602	1602	defer di.deinit();
1603		try printSourceAtAddress(&di, &discarding.writer, showMyTrace(), io.tty.detectConfig(.stderr()));
	1603	try printSourceAtAddress(&di, &discarding.writer, showMyTrace(), tty.detectConfig(.stderr()));
1604	1604	}
1605	1605
1606	1606	noinline fn showMyTrace() usize {
...	...	@@ -1666,7 +1666,7 @@ pub fn ConfigurableTrace(comptime size: usize, comptime stack_frame_count: usize
1666	1666	pub fn dump(t: @This()) void {
1667	1667	if (!enabled) return;
1668	1668
1669		const tty_config = io.tty.detectConfig(.stderr());
	1669	const tty_config = tty.detectConfig(.stderr());
1670	1670	const stderr = lockStderrWriter(&.{});
1671	1671	defer unlockStderrWriter();
1672	1672	const end = @min(t.index, size);

lib/std/debug/Dwarf/call_frame.zig+37-44

...	...	@@ -51,15 +51,9 @@ const Opcode = enum(u8) {
51	51	pub const hi_user = 0x3f;
52	52	};
53	53
54		fn readBlock(stream: *std.io.FixedBufferStream([]const u8)) ![]const u8 {
55		const reader = stream.reader();
56		const block_len = try leb.readUleb128(usize, reader);
57		if (stream.pos + block_len > stream.buffer.len) return error.InvalidOperand;
58
59		const block = stream.buffer[stream.pos..][0..block_len];
60		reader.context.pos += block_len;
61
62		return block;
	54	fn readBlock(reader: *std.Io.Reader) ![]const u8 {
	55	const block_len = try reader.takeLeb128(usize);
	56	return reader.take(block_len);
63	57	}
64	58
65	59	pub const Instruction = union(Opcode) {
...	...	@@ -147,12 +141,11 @@ pub const Instruction = union(Opcode) {
147	141	},
148	142
149	143	pub fn read(
150		stream: *std.io.FixedBufferStream([]const u8),
	144	reader: *std.Io.Reader,
151	145	addr_size_bytes: u8,
152	146	endian: std.builtin.Endian,
153	147	) !Instruction {
154		const reader = stream.reader();
155		switch (try reader.readByte()) {
	148	switch (try reader.takeByte()) {
156	149	Opcode.lo_inline...Opcode.hi_inline => \|opcode\| {
157	150	const e: Opcode = @enumFromInt(opcode & 0b11000000);
158	151	const value: u6 = @intCast(opcode & 0b111111);
...	...	@@ -163,7 +156,7 @@ pub const Instruction = union(Opcode) {
163	156	.offset => .{
164	157	.offset = .{
165	158	.register = value,
166		.offset = try leb.readUleb128(u64, reader),
	159	.offset = try reader.takeLeb128(u64),
167	160	},
168	161	},
169	162	.restore => .{
...	...	@@ -183,111 +176,111 @@ pub const Instruction = union(Opcode) {
183	176	.set_loc => .{
184	177	.set_loc = .{
185	178	.address = switch (addr_size_bytes) {
186		2 => try reader.readInt(u16, endian),
187		4 => try reader.readInt(u32, endian),
188		8 => try reader.readInt(u64, endian),
	179	2 => try reader.takeInt(u16, endian),
	180	4 => try reader.takeInt(u32, endian),
	181	8 => try reader.takeInt(u64, endian),
189	182	else => return error.InvalidAddrSize,
190	183	},
191	184	},
192	185	},
193	186	.advance_loc1 => .{
194		.advance_loc1 = .{ .delta = try reader.readByte() },
	187	.advance_loc1 = .{ .delta = try reader.takeByte() },
195	188	},
196	189	.advance_loc2 => .{
197		.advance_loc2 = .{ .delta = try reader.readInt(u16, endian) },
	190	.advance_loc2 = .{ .delta = try reader.takeInt(u16, endian) },
198	191	},
199	192	.advance_loc4 => .{
200		.advance_loc4 = .{ .delta = try reader.readInt(u32, endian) },
	193	.advance_loc4 = .{ .delta = try reader.takeInt(u32, endian) },
201	194	},
202	195	.offset_extended => .{
203	196	.offset_extended = .{
204		.register = try leb.readUleb128(u8, reader),
205		.offset = try leb.readUleb128(u64, reader),
	197	.register = try reader.takeLeb128(u8),
	198	.offset = try reader.takeLeb128(u64),
206	199	},
207	200	},
208	201	.restore_extended => .{
209	202	.restore_extended = .{
210		.register = try leb.readUleb128(u8, reader),
	203	.register = try reader.takeLeb128(u8),
211	204	},
212	205	},
213	206	.undefined => .{
214	207	.undefined = .{
215		.register = try leb.readUleb128(u8, reader),
	208	.register = try reader.takeLeb128(u8),
216	209	},
217	210	},
218	211	.same_value => .{
219	212	.same_value = .{
220		.register = try leb.readUleb128(u8, reader),
	213	.register = try reader.takeLeb128(u8),
221	214	},
222	215	},
223	216	.register => .{
224	217	.register = .{
225		.register = try leb.readUleb128(u8, reader),
226		.target_register = try leb.readUleb128(u8, reader),
	218	.register = try reader.takeLeb128(u8),
	219	.target_register = try reader.takeLeb128(u8),
227	220	},
228	221	},
229	222	.remember_state => .{ .remember_state = {} },
230	223	.restore_state => .{ .restore_state = {} },
231	224	.def_cfa => .{
232	225	.def_cfa = .{
233		.register = try leb.readUleb128(u8, reader),
234		.offset = try leb.readUleb128(u64, reader),
	226	.register = try reader.takeLeb128(u8),
	227	.offset = try reader.takeLeb128(u64),
235	228	},
236	229	},
237	230	.def_cfa_register => .{
238	231	.def_cfa_register = .{
239		.register = try leb.readUleb128(u8, reader),
	232	.register = try reader.takeLeb128(u8),
240	233	},
241	234	},
242	235	.def_cfa_offset => .{
243	236	.def_cfa_offset = .{
244		.offset = try leb.readUleb128(u64, reader),
	237	.offset = try reader.takeLeb128(u64),
245	238	},
246	239	},
247	240	.def_cfa_expression => .{
248	241	.def_cfa_expression = .{
249		.block = try readBlock(stream),
	242	.block = try readBlock(reader),
250	243	},
251	244	},
252	245	.expression => .{
253	246	.expression = .{
254		.register = try leb.readUleb128(u8, reader),
255		.block = try readBlock(stream),
	247	.register = try reader.takeLeb128(u8),
	248	.block = try readBlock(reader),
256	249	},
257	250	},
258	251	.offset_extended_sf => .{
259	252	.offset_extended_sf = .{
260		.register = try leb.readUleb128(u8, reader),
261		.offset = try leb.readIleb128(i64, reader),
	253	.register = try reader.takeLeb128(u8),
	254	.offset = try reader.takeLeb128(i64),
262	255	},
263	256	},
264	257	.def_cfa_sf => .{
265	258	.def_cfa_sf = .{
266		.register = try leb.readUleb128(u8, reader),
267		.offset = try leb.readIleb128(i64, reader),
	259	.register = try reader.takeLeb128(u8),
	260	.offset = try reader.takeLeb128(i64),
268	261	},
269	262	},
270	263	.def_cfa_offset_sf => .{
271	264	.def_cfa_offset_sf = .{
272		.offset = try leb.readIleb128(i64, reader),
	265	.offset = try reader.takeLeb128(i64),
273	266	},
274	267	},
275	268	.val_offset => .{
276	269	.val_offset = .{
277		.register = try leb.readUleb128(u8, reader),
278		.offset = try leb.readUleb128(u64, reader),
	270	.register = try reader.takeLeb128(u8),
	271	.offset = try reader.takeLeb128(u64),
279	272	},
280	273	},
281	274	.val_offset_sf => .{
282	275	.val_offset_sf = .{
283		.register = try leb.readUleb128(u8, reader),
284		.offset = try leb.readIleb128(i64, reader),
	276	.register = try reader.takeLeb128(u8),
	277	.offset = try reader.takeLeb128(i64),
285	278	},
286	279	},
287	280	.val_expression => .{
288	281	.val_expression = .{
289		.register = try leb.readUleb128(u8, reader),
290		.block = try readBlock(stream),
	282	.register = try reader.takeLeb128(u8),
	283	.block = try readBlock(reader),
291	284	},
292	285	},
293	286	};

lib/std/debug/Dwarf/expression.zig+46-53

...	...	@@ -62,7 +62,7 @@ pub const Error = error{
62	62	InvalidTypeLength,
63	63
64	64	TruncatedIntegralType,
65		} \|\| abi.RegBytesError \|\| error{ EndOfStream, Overflow, OutOfMemory, DivisionByZero };
	65	} \|\| abi.RegBytesError \|\| error{ EndOfStream, Overflow, OutOfMemory, DivisionByZero, ReadFailed };
66	66
67	67	/// A stack machine that can decode and run DWARF expressions.
68	68	/// Expressions can be decoded for non-native address size and endianness,
...	...	@@ -178,61 +178,60 @@ pub fn StackMachine(comptime options: Options) type {
178	178	}
179	179	}
180	180
181		pub fn readOperand(stream: *std.io.FixedBufferStream([]const u8), opcode: u8, context: Context) !?Operand {
182		const reader = stream.reader();
	181	pub fn readOperand(reader: *std.Io.Reader, opcode: u8, context: Context) !?Operand {
183	182	return switch (opcode) {
184		OP.addr => generic(try reader.readInt(addr_type, options.endian)),
	183	OP.addr => generic(try reader.takeInt(addr_type, options.endian)),
185	184	OP.call_ref => switch (context.format) {
186		.@"32" => generic(try reader.readInt(u32, options.endian)),
187		.@"64" => generic(try reader.readInt(u64, options.endian)),
	185	.@"32" => generic(try reader.takeInt(u32, options.endian)),
	186	.@"64" => generic(try reader.takeInt(u64, options.endian)),
188	187	},
189	188	OP.const1u,
190	189	OP.pick,
191		=> generic(try reader.readByte()),
	190	=> generic(try reader.takeByte()),
192	191	OP.deref_size,
193	192	OP.xderef_size,
194		=> .{ .type_size = try reader.readByte() },
195		OP.const1s => generic(try reader.readByteSigned()),
	193	=> .{ .type_size = try reader.takeByte() },
	194	OP.const1s => generic(try reader.takeByteSigned()),
196	195	OP.const2u,
197	196	OP.call2,
198		=> generic(try reader.readInt(u16, options.endian)),
199		OP.call4 => generic(try reader.readInt(u32, options.endian)),
200		OP.const2s => generic(try reader.readInt(i16, options.endian)),
	197	=> generic(try reader.takeInt(u16, options.endian)),
	198	OP.call4 => generic(try reader.takeInt(u32, options.endian)),
	199	OP.const2s => generic(try reader.takeInt(i16, options.endian)),
201	200	OP.bra,
202	201	OP.skip,
203		=> .{ .branch_offset = try reader.readInt(i16, options.endian) },
204		OP.const4u => generic(try reader.readInt(u32, options.endian)),
205		OP.const4s => generic(try reader.readInt(i32, options.endian)),
206		OP.const8u => generic(try reader.readInt(u64, options.endian)),
207		OP.const8s => generic(try reader.readInt(i64, options.endian)),
	202	=> .{ .branch_offset = try reader.takeInt(i16, options.endian) },
	203	OP.const4u => generic(try reader.takeInt(u32, options.endian)),
	204	OP.const4s => generic(try reader.takeInt(i32, options.endian)),
	205	OP.const8u => generic(try reader.takeInt(u64, options.endian)),
	206	OP.const8s => generic(try reader.takeInt(i64, options.endian)),
208	207	OP.constu,
209	208	OP.plus_uconst,
210	209	OP.addrx,
211	210	OP.constx,
212	211	OP.convert,
213	212	OP.reinterpret,
214		=> generic(try leb.readUleb128(u64, reader)),
	213	=> generic(try reader.takeLeb128(u64)),
215	214	OP.consts,
216	215	OP.fbreg,
217		=> generic(try leb.readIleb128(i64, reader)),
	216	=> generic(try reader.takeLeb128(i64)),
218	217	OP.lit0...OP.lit31 => \|n\| generic(n - OP.lit0),
219	218	OP.reg0...OP.reg31 => \|n\| .{ .register = n - OP.reg0 },
220	219	OP.breg0...OP.breg31 => \|n\| .{ .base_register = .{
221	220	.base_register = n - OP.breg0,
222		.offset = try leb.readIleb128(i64, reader),
	221	.offset = try reader.takeLeb128(i64),
223	222	} },
224		OP.regx => .{ .register = try leb.readUleb128(u8, reader) },
	223	OP.regx => .{ .register = try reader.takeLeb128(u8) },
225	224	OP.bregx => blk: {
226		const base_register = try leb.readUleb128(u8, reader);
227		const offset = try leb.readIleb128(i64, reader);
	225	const base_register = try reader.takeLeb128(u8);
	226	const offset = try reader.takeLeb128(i64);
228	227	break :blk .{ .base_register = .{
229	228	.base_register = base_register,
230	229	.offset = offset,
231	230	} };
232	231	},
233	232	OP.regval_type => blk: {
234		const register = try leb.readUleb128(u8, reader);
235		const type_offset = try leb.readUleb128(addr_type, reader);
	233	const register = try reader.takeLeb128(u8);
	234	const type_offset = try reader.takeLeb128(addr_type);
236	235	break :blk .{ .register_type = .{
237	236	.register = register,
238	237	.type_offset = type_offset,
...	...	@@ -240,33 +239,27 @@ pub fn StackMachine(comptime options: Options) type {
240	239	},
241	240	OP.piece => .{
242	241	.composite_location = .{
243		.size = try leb.readUleb128(u8, reader),
	242	.size = try reader.takeLeb128(u8),
244	243	.offset = 0,
245	244	},
246	245	},
247	246	OP.bit_piece => blk: {
248		const size = try leb.readUleb128(u8, reader);
249		const offset = try leb.readIleb128(i64, reader);
	247	const size = try reader.takeLeb128(u8);
	248	const offset = try reader.takeLeb128(i64);
250	249	break :blk .{ .composite_location = .{
251	250	.size = size,
252	251	.offset = offset,
253	252	} };
254	253	},
255	254	OP.implicit_value, OP.entry_value => blk: {
256		const size = try leb.readUleb128(u8, reader);
257		if (stream.pos + size > stream.buffer.len) return error.InvalidExpression;
258		const block = stream.buffer[stream.pos..][0..size];
259		stream.pos += size;
260		break :blk .{
261		.block = block,
262		};
	255	const size = try reader.takeLeb128(u8);
	256	const block = try reader.take(size);
	257	break :blk .{ .block = block };
263	258	},
264	259	OP.const_type => blk: {
265		const type_offset = try leb.readUleb128(addr_type, reader);
266		const size = try reader.readByte();
267		if (stream.pos + size > stream.buffer.len) return error.InvalidExpression;
268		const value_bytes = stream.buffer[stream.pos..][0..size];
269		stream.pos += size;
	260	const type_offset = try reader.takeLeb128(addr_type);
	261	const size = try reader.takeByte();
	262	const value_bytes = try reader.take(size);
270	263	break :blk .{ .const_type = .{
271	264	.type_offset = type_offset,
272	265	.value_bytes = value_bytes,
...	...	@@ -276,8 +269,8 @@ pub fn StackMachine(comptime options: Options) type {
276	269	OP.xderef_type,
277	270	=> .{
278	271	.deref_type = .{
279		.size = try reader.readByte(),
280		.type_offset = try leb.readUleb128(addr_type, reader),
	272	.size = try reader.takeByte(),
	273	.type_offset = try reader.takeLeb128(addr_type),
281	274	},
282	275	},
283	276	OP.lo_user...OP.hi_user => return error.UnimplementedUserOpcode,
...	...	@@ -293,7 +286,7 @@ pub fn StackMachine(comptime options: Options) type {
293	286	initial_value: ?usize,
294	287	) Error!?Value {
295	288	if (initial_value) \|i\| try self.stack.append(allocator, .{ .generic = i });
296		var stream = std.io.fixedBufferStream(expression);
	289	var stream: std.Io.Reader = .fixed(expression);
297	290	while (try self.step(&stream, allocator, context)) {}
298	291	if (self.stack.items.len == 0) return null;
299	292	return self.stack.items[self.stack.items.len - 1];
...	...	@@ -302,14 +295,14 @@ pub fn StackMachine(comptime options: Options) type {
302	295	/// Reads an opcode and its operands from `stream`, then executes it
303	296	pub fn step(
304	297	self: *Self,
305		stream: *std.io.FixedBufferStream([]const u8),
	298	stream: *std.Io.Reader,
306	299	allocator: std.mem.Allocator,
307	300	context: Context,
308	301	) Error!bool {
309	302	if (@sizeOf(usize) != @sizeOf(addr_type) or options.endian != native_endian)
310	303	@compileError("Execution of non-native address sizes / endianness is not supported");
311	304
312		const opcode = try stream.reader().readByte();
	305	const opcode = try stream.takeByte();
313	306	if (options.call_frame_context and !isOpcodeValidInCFA(opcode)) return error.InvalidCFAOpcode;
314	307	const operand = try readOperand(stream, opcode, context);
315	308	switch (opcode) {
...	...	@@ -663,11 +656,11 @@ pub fn StackMachine(comptime options: Options) type {
663	656	if (condition) {
664	657	const new_pos = std.math.cast(
665	658	usize,
666		try std.math.add(isize, @as(isize, @intCast(stream.pos)), branch_offset),
	659	try std.math.add(isize, @as(isize, @intCast(stream.seek)), branch_offset),
667	660	) orelse return error.InvalidExpression;
668	661
669	662	if (new_pos < 0 or new_pos > stream.buffer.len) return error.InvalidExpression;
670		stream.pos = new_pos;
	663	stream.seek = new_pos;
671	664	}
672	665	},
673	666	OP.call2,
...	...	@@ -746,7 +739,7 @@ pub fn StackMachine(comptime options: Options) type {
746	739	if (isOpcodeRegisterLocation(block[0])) {
747	740	if (context.thread_context == null) return error.IncompleteExpressionContext;
748	741
749		var block_stream = std.io.fixedBufferStream(block);
	742	var block_stream: std.Io.Reader = .fixed(block);
750	743	const register = (try readOperand(&block_stream, block[0], context)).?.register;
751	744	const value = mem.readInt(usize, (try abi.regBytes(context.thread_context.?, register, context.reg_context))[0..@sizeOf(usize)], native_endian);
752	745	try self.stack.append(allocator, .{ .generic = value });
...	...	@@ -769,7 +762,7 @@ pub fn StackMachine(comptime options: Options) type {
769	762	},
770	763	}
771	764
772		return stream.pos < stream.buffer.len;
	765	return stream.seek < stream.buffer.len;
773	766	}
774	767	};
775	768	}
...	...	@@ -858,7 +851,7 @@ pub fn Builder(comptime options: Options) type {
858	851	},
859	852	.signed => {
860	853	try writer.writeByte(OP.consts);
861		try leb.writeIleb128(writer, value);
	854	try writer.writeLeb128(value);
862	855	},
863	856	},
864	857	}
...	...	@@ -892,19 +885,19 @@ pub fn Builder(comptime options: Options) type {
892	885	// 2.5.1.2: Register Values
893	886	pub fn writeFbreg(writer: *Writer, offset: anytype) !void {
894	887	try writer.writeByte(OP.fbreg);
895		try leb.writeIleb128(writer, offset);
	888	try writer.writeSleb128(offset);
896	889	}
897	890
898	891	pub fn writeBreg(writer: *Writer, register: u8, offset: anytype) !void {
899	892	if (register > 31) return error.InvalidRegister;
900	893	try writer.writeByte(OP.breg0 + register);
901		try leb.writeIleb128(writer, offset);
	894	try writer.writeSleb128(offset);
902	895	}
903	896
904	897	pub fn writeBregx(writer: *Writer, register: anytype, offset: anytype) !void {
905	898	try writer.writeByte(OP.bregx);
906	899	try writer.writeUleb128(register);
907		try leb.writeIleb128(writer, offset);
	900	try writer.writeSleb128(offset);
908	901	}
909	902
910	903	pub fn writeRegvalType(writer: *Writer, register: anytype, offset: anytype) !void {

lib/std/debug/SelfInfo.zig+4-7

...	...	@@ -2017,15 +2017,12 @@ pub const VirtualMachine = struct {
2017	2017
2018	2018	var prev_row: Row = self.current_row;
2019	2019
2020		var cie_stream = std.io.fixedBufferStream(cie.initial_instructions);
2021		var fde_stream = std.io.fixedBufferStream(fde.instructions);
2022		var streams = [_]*std.io.FixedBufferStream([]const u8){
2023		&cie_stream,
2024		&fde_stream,
2025		};
	2020	var cie_stream: std.Io.Reader = .fixed(cie.initial_instructions);
	2021	var fde_stream: std.Io.Reader = .fixed(fde.instructions);
	2022	const streams = [_]*std.Io.Reader{ &cie_stream, &fde_stream };
2026	2023
2027	2024	for (&streams, 0..) \|stream, i\| {
2028		while (stream.pos < stream.buffer.len) {
	2025	while (stream.seek < stream.buffer.len) {
2029	2026	const instruction = try std.debug.Dwarf.call_frame.Instruction.read(stream, addr_size_bytes, endian);
2030	2027	prev_row = try self.step(allocator, cie, i == 0, instruction);
2031	2028	if (pc < fde.pc_begin + self.current_row.offset) return prev_row;

lib/std/elf.zig+1-1

...	...	@@ -609,7 +609,7 @@ pub const ProgramHeaderBufferIterator = struct {
609	609	}
610	610	};
611	611
612		fn takePhdr(reader: *std.io.Reader, elf_header: Header) !?Elf64_Phdr {
	612	fn takePhdr(reader: *std.Io.Reader, elf_header: Header) !?Elf64_Phdr {
613	613	if (elf_header.is_64) {
614	614	const phdr = try reader.takeStruct(Elf64_Phdr, elf_header.endian);
615	615	return phdr;

lib/std/fmt.zig+1-2

...	...	@@ -3,7 +3,6 @@
3	3	const builtin = @import("builtin");
4	4
5	5	const std = @import("std.zig");
6		const io = std.io;
7	6	const math = std.math;
8	7	const assert = std.debug.assert;
9	8	const mem = std.mem;
...	...	@@ -12,7 +11,7 @@ const lossyCast = math.lossyCast;
12	11	const expectFmt = std.testing.expectFmt;
13	12	const testing = std.testing;
14	13	const Allocator = std.mem.Allocator;
15		const Writer = std.io.Writer;
	14	const Writer = std.Io.Writer;
16	15
17	16	pub const float = @import("fmt/float.zig");
18	17

lib/std/fs/Dir.zig+48-30

...	...	@@ -1977,41 +1977,59 @@ pub fn readFile(self: Dir, file_path: []const u8, buffer: []u8) ![]u8 {
1977	1977	return buffer[0..end_index];
1978	1978	}
1979	1979
1980		/// On success, caller owns returned buffer.
1981		/// If the file is larger than `max_bytes`, returns `error.FileTooBig`.
1982		/// On Windows, `file_path` should be encoded as [WTF-8](https://simonsapin.github.io/wtf-8/).
1983		/// On WASI, `file_path` should be encoded as valid UTF-8.
1984		/// On other platforms, `file_path` is an opaque sequence of bytes with no particular encoding.
1985		pub fn readFileAlloc(self: Dir, allocator: mem.Allocator, file_path: []const u8, max_bytes: usize) ![]u8 {
1986		return self.readFileAllocOptions(allocator, file_path, max_bytes, null, .of(u8), null);
	1980	pub const ReadFileAllocError = File.OpenError \|\| File.ReadError \|\| Allocator.Error \|\| error{
	1981	/// File size reached or exceeded the provided limit.
	1982	StreamTooLong,
	1983	};
	1984
	1985	/// Reads all the bytes from the named file. On success, caller owns returned
	1986	/// buffer.
	1987	///
	1988	/// If the file size is already known, a better alternative is to initialize a
	1989	/// `File.Reader`.
	1990	///
	1991	/// If the file size cannot be obtained, an error is returned. If
	1992	/// this is a realistic possibility, a better alternative is to initialize a
	1993	/// `File.Reader` which handles this seamlessly.
	1994	pub fn readFileAlloc(
	1995	dir: Dir,
	1996	/// On Windows, should be encoded as [WTF-8](https://simonsapin.github.io/wtf-8/).
	1997	/// On WASI, should be encoded as valid UTF-8.
	1998	/// On other platforms, an opaque sequence of bytes with no particular encoding.
	1999	sub_path: []const u8,
	2000	/// Used to allocate the result.
	2001	gpa: Allocator,
	2002	/// If reached or exceeded, `error.StreamTooLong` is returned instead.
	2003	limit: std.Io.Limit,
	2004	) ReadFileAllocError![]u8 {
	2005	return readFileAllocOptions(dir, sub_path, gpa, limit, .of(u8), null);
1987	2006	}
1988	2007
1989		/// On success, caller owns returned buffer.
1990		/// If the file is larger than `max_bytes`, returns `error.FileTooBig`.
1991		/// If `size_hint` is specified the initial buffer size is calculated using
1992		/// that value, otherwise the effective file size is used instead.
1993		/// Allows specifying alignment and a sentinel value.
1994		/// On Windows, `file_path` should be encoded as [WTF-8](https://simonsapin.github.io/wtf-8/).
1995		/// On WASI, `file_path` should be encoded as valid UTF-8.
1996		/// On other platforms, `file_path` is an opaque sequence of bytes with no particular encoding.
	2008	/// Reads all the bytes from the named file. On success, caller owns returned
	2009	/// buffer.
	2010	///
	2011	/// If the file size is already known, a better alternative is to initialize a
	2012	/// `File.Reader`.
1997	2013	pub fn readFileAllocOptions(
1998		self: Dir,
1999		allocator: mem.Allocator,
2000		file_path: []const u8,
2001		max_bytes: usize,
2002		size_hint: ?usize,
	2014	dir: Dir,
	2015	/// On Windows, should be encoded as [WTF-8](https://simonsapin.github.io/wtf-8/).
	2016	/// On WASI, should be encoded as valid UTF-8.
	2017	/// On other platforms, an opaque sequence of bytes with no particular encoding.
	2018	sub_path: []const u8,
	2019	/// Used to allocate the result.
	2020	gpa: Allocator,
	2021	/// If reached or exceeded, `error.StreamTooLong` is returned instead.
	2022	limit: std.Io.Limit,
2003	2023	comptime alignment: std.mem.Alignment,
2004		comptime optional_sentinel: ?u8,
2005		) !(if (optional_sentinel) \|s\| [:s]align(alignment.toByteUnits()) u8 else []align(alignment.toByteUnits()) u8) {
2006		var file = try self.openFile(file_path, .{});
	2024	comptime sentinel: ?u8,
	2025	) ReadFileAllocError!(if (sentinel) \|s\| [:s]align(alignment.toByteUnits()) u8 else []align(alignment.toByteUnits()) u8) {
	2026	var file = try dir.openFile(sub_path, .{});
2007	2027	defer file.close();
2008
2009		// If the file size doesn't fit a usize it'll be certainly greater than
2010		// `max_bytes`
2011		const stat_size = size_hint orelse std.math.cast(usize, try file.getEndPos()) orelse
2012		return error.FileTooBig;
2013
2014		return file.readToEndAllocOptions(allocator, max_bytes, stat_size, alignment, optional_sentinel);
	2028	var file_reader = file.reader(&.{});
	2029	return file_reader.interface.allocRemainingAlignedSentinel(gpa, limit, alignment, sentinel) catch \|err\| switch (err) {
	2030	error.ReadFailed => return file_reader.err.?,
	2031	error.OutOfMemory, error.StreamTooLong => \|e\| return e,
	2032	};
2015	2033	}
2016	2034
2017	2035	pub const DeleteTreeError = error{

lib/std/fs/File.zig-45

...	...	@@ -7,7 +7,6 @@ const File = @This();
7	7	const std = @import("../std.zig");
8	8	const Allocator = std.mem.Allocator;
9	9	const posix = std.posix;
10		const io = std.io;
11	10	const math = std.math;
12	11	const assert = std.debug.assert;
13	12	const linux = std.os.linux;
...	...	@@ -805,42 +804,6 @@ pub fn updateTimes(
805	804	try posix.futimens(self.handle, &times);
806	805	}
807	806
808		/// Deprecated in favor of `Reader`.
809		pub fn readToEndAlloc(self: File, allocator: Allocator, max_bytes: usize) ![]u8 {
810		return self.readToEndAllocOptions(allocator, max_bytes, null, .of(u8), null);
811		}
812
813		/// Deprecated in favor of `Reader`.
814		pub fn readToEndAllocOptions(
815		self: File,
816		allocator: Allocator,
817		max_bytes: usize,
818		size_hint: ?usize,
819		comptime alignment: Alignment,
820		comptime optional_sentinel: ?u8,
821		) !(if (optional_sentinel) \|s\| [:s]align(alignment.toByteUnits()) u8 else []align(alignment.toByteUnits()) u8) {
822		// If no size hint is provided fall back to the size=0 code path
823		const size = size_hint orelse 0;
824
825		// The file size returned by stat is used as hint to set the buffer
826		// size. If the reported size is zero, as it happens on Linux for files
827		// in /proc, a small buffer is allocated instead.
828		const initial_cap = @min((if (size > 0) size else 1024), max_bytes) + @intFromBool(optional_sentinel != null);
829		var array_list = try std.array_list.AlignedManaged(u8, alignment).initCapacity(allocator, initial_cap);
830		defer array_list.deinit();
831
832		self.deprecatedReader().readAllArrayListAligned(alignment, &array_list, max_bytes) catch \|err\| switch (err) {
833		error.StreamTooLong => return error.FileTooBig,
834		else => \|e\| return e,
835		};
836
837		if (optional_sentinel) \|sentinel\| {
838		return try array_list.toOwnedSliceSentinel(sentinel);
839		} else {
840		return try array_list.toOwnedSlice();
841		}
842		}
843
844	807	pub const ReadError = posix.ReadError;
845	808	pub const PReadError = posix.PReadError;
846	809
...	...	@@ -1089,14 +1052,6 @@ pub fn copyRangeAll(in: File, in_offset: u64, out: File, out_offset: u64, len: u
1089	1052	return total_bytes_copied;
1090	1053	}
1091	1054
1092		/// Deprecated in favor of `Reader`.
1093		pub const DeprecatedReader = io.GenericReader(File, ReadError, read);
1094
1095		/// Deprecated in favor of `Reader`.
1096		pub fn deprecatedReader(file: File) DeprecatedReader {
1097		return .{ .context = file };
1098		}
1099
1100	1055	/// Memoizes key information about a file handle such as:
1101	1056	/// * The size from calling stat, or the error that occurred therein.
1102	1057	/// * The current seek position.

lib/std/fs/path.zig+1-1

...	...	@@ -150,7 +150,7 @@ pub fn fmtJoin(paths: []const []const u8) std.fmt.Formatter([]const []const u8,
150	150	return .{ .data = paths };
151	151	}
152	152
153		fn formatJoin(paths: []const []const u8, w: *std.io.Writer) std.io.Writer.Error!void {
	153	fn formatJoin(paths: []const []const u8, w: *std.Io.Writer) std.Io.Writer.Error!void {
154	154	const first_path_idx = for (paths, 0..) \|p, idx\| {
155	155	if (p.len != 0) break idx;
156	156	} else return;

lib/std/fs/test.zig+35-25

...	...	@@ -676,37 +676,47 @@ test "Dir.realpath smoke test" {
676	676	}.impl);
677	677	}
678	678
679		test "readAllAlloc" {
	679	test "readFileAlloc" {
680	680	var tmp_dir = tmpDir(.{});
681	681	defer tmp_dir.cleanup();
682	682
683	683	var file = try tmp_dir.dir.createFile("test_file", .{ .read = true });
684	684	defer file.close();
685	685
686		const buf1 = try file.readToEndAlloc(testing.allocator, 1024);
	686	const buf1 = try tmp_dir.dir.readFileAlloc("test_file", testing.allocator, .limited(1024));
687	687	defer testing.allocator.free(buf1);
688		try testing.expectEqual(@as(usize, 0), buf1.len);
	688	try testing.expectEqualStrings("", buf1);
689	689
690	690	const write_buf: []const u8 = "this is a test.\nthis is a test.\nthis is a test.\nthis is a test.\n";
691	691	try file.writeAll(write_buf);
692		try file.seekTo(0);
693
694		// max_bytes > file_size
695		const buf2 = try file.readToEndAlloc(testing.allocator, 1024);
696		defer testing.allocator.free(buf2);
697		try testing.expectEqual(write_buf.len, buf2.len);
698		try testing.expectEqualStrings(write_buf, buf2);
699		try file.seekTo(0);
700
701		// max_bytes == file_size
702		const buf3 = try file.readToEndAlloc(testing.allocator, write_buf.len);
703		defer testing.allocator.free(buf3);
704		try testing.expectEqual(write_buf.len, buf3.len);
705		try testing.expectEqualStrings(write_buf, buf3);
706		try file.seekTo(0);
	692
	693	{
	694	// max_bytes > file_size
	695	const buf2 = try tmp_dir.dir.readFileAlloc("test_file", testing.allocator, .limited(1024));
	696	defer testing.allocator.free(buf2);
	697	try testing.expectEqualStrings(write_buf, buf2);
	698	}
	699
	700	{
	701	// max_bytes == file_size
	702	try testing.expectError(
	703	error.StreamTooLong,
	704	tmp_dir.dir.readFileAlloc("test_file", testing.allocator, .limited(write_buf.len)),
	705	);
	706	}
	707
	708	{
	709	// max_bytes == file_size + 1
	710	const buf2 = try tmp_dir.dir.readFileAlloc("test_file", testing.allocator, .limited(write_buf.len + 1));
	711	defer testing.allocator.free(buf2);
	712	try testing.expectEqualStrings(write_buf, buf2);
	713	}
707	714
708	715	// max_bytes < file_size
709		try testing.expectError(error.FileTooBig, file.readToEndAlloc(testing.allocator, write_buf.len - 1));
	716	try testing.expectError(
	717	error.StreamTooLong,
	718	tmp_dir.dir.readFileAlloc("test_file", testing.allocator, .limited(write_buf.len - 1)),
	719	);
710	720	}
711	721
712	722	test "Dir.statFile" {
...	...	@@ -778,16 +788,16 @@ test "file operations on directories" {
778	788	switch (native_os) {
779	789	.dragonfly, .netbsd => {
780	790	// no error when reading a directory. See https://github.com/ziglang/zig/issues/5732
781		const buf = try ctx.dir.readFileAlloc(testing.allocator, test_dir_name, std.math.maxInt(usize));
	791	const buf = try ctx.dir.readFileAlloc(test_dir_name, testing.allocator, .unlimited);
782	792	testing.allocator.free(buf);
783	793	},
784	794	.wasi => {
785	795	// WASI return EBADF, which gets mapped to NotOpenForReading.
786	796	// See https://github.com/bytecodealliance/wasmtime/issues/1935
787		try testing.expectError(error.NotOpenForReading, ctx.dir.readFileAlloc(testing.allocator, test_dir_name, std.math.maxInt(usize)));
	797	try testing.expectError(error.NotOpenForReading, ctx.dir.readFileAlloc(test_dir_name, testing.allocator, .unlimited));
788	798	},
789	799	else => {
790		try testing.expectError(error.IsDir, ctx.dir.readFileAlloc(testing.allocator, test_dir_name, std.math.maxInt(usize)));
	800	try testing.expectError(error.IsDir, ctx.dir.readFileAlloc(test_dir_name, testing.allocator, .unlimited));
791	801	},
792	802	}
793	803
...	...	@@ -1564,7 +1574,7 @@ test "copyFile" {
1564	1574	}
1565	1575
1566	1576	fn expectFileContents(dir: Dir, file_path: []const u8, data: []const u8) !void {
1567		const contents = try dir.readFileAlloc(testing.allocator, file_path, 1000);
	1577	const contents = try dir.readFileAlloc(file_path, testing.allocator, .limited(1000));
1568	1578	defer testing.allocator.free(contents);
1569	1579
1570	1580	try testing.expectEqualSlices(u8, data, contents);
...	...	@@ -1587,7 +1597,7 @@ test "AtomicFile" {
1587	1597	try af.file_writer.interface.writeAll(test_content);
1588	1598	try af.finish();
1589	1599	}
1590		const content = try ctx.dir.readFileAlloc(allocator, test_out_file, 9999);
	1600	const content = try ctx.dir.readFileAlloc(test_out_file, allocator, .limited(9999));
1591	1601	try testing.expectEqualStrings(test_content, content);
1592	1602
1593	1603	try ctx.dir.deleteFile(test_out_file);
...	...	@@ -2004,7 +2014,7 @@ test "invalid UTF-8/WTF-8 paths" {
2004	2014	}
2005	2015
2006	2016	try testing.expectError(expected_err, ctx.dir.readFile(invalid_path, &[_]u8{}));
2007		try testing.expectError(expected_err, ctx.dir.readFileAlloc(testing.allocator, invalid_path, 0));
	2017	try testing.expectError(expected_err, ctx.dir.readFileAlloc(invalid_path, testing.allocator, .limited(0)));
2008	2018
2009	2019	try testing.expectError(expected_err, ctx.dir.deleteTree(invalid_path));
2010	2020	try testing.expectError(expected_err, ctx.dir.deleteTreeMinStackSize(invalid_path));

lib/std/json.zig+2-2

...	...	@@ -1,7 +1,7 @@
1	1	//! JSON parsing and stringification conforming to RFC 8259. https://datatracker.ietf.org/doc/html/rfc8259
2	2	//!
3	3	//! The low-level `Scanner` API produces `Token`s from an input slice or successive slices of inputs,
4		//! The `Reader` API connects a `std.io.GenericReader` to a `Scanner`.
	4	//! The `Reader` API connects a `std.Io.GenericReader` to a `Scanner`.
5	5	//!
6	6	//! The high-level `parseFromSlice` and `parseFromTokenSource` deserialize a JSON document into a Zig type.
7	7	//! Parse into a dynamically-typed `Value` to load any JSON value for runtime inspection.
...	...	@@ -42,7 +42,7 @@ test Value {
42	42	}
43	43
44	44	test Stringify {
45		var out: std.io.Writer.Allocating = .init(testing.allocator);
	45	var out: std.Io.Writer.Allocating = .init(testing.allocator);
46	46	var write_stream: Stringify = .{
47	47	.writer = &out.writer,
48	48	.options = .{ .whitespace = .indent_2 },

lib/std/json/Stringify.zig+3-3

...	...	@@ -23,7 +23,7 @@ const Allocator = std.mem.Allocator;
23	23	const ArrayList = std.ArrayList;
24	24	const BitStack = std.BitStack;
25	25	const Stringify = @This();
26		const Writer = std.io.Writer;
	26	const Writer = std.Io.Writer;
27	27
28	28	const IndentationMode = enum(u1) {
29	29	object = 0,
...	...	@@ -576,7 +576,7 @@ pub fn value(v: anytype, options: Options, writer: *Writer) Error!void {
576	576	}
577	577
578	578	test value {
579		var out: std.io.Writer.Allocating = .init(std.testing.allocator);
	579	var out: Writer.Allocating = .init(std.testing.allocator);
580	580	const writer = &out.writer;
581	581	defer out.deinit();
582	582
...	...	@@ -616,7 +616,7 @@ test value {
616	616	///
617	617	/// Caller owns returned memory.
618	618	pub fn valueAlloc(gpa: Allocator, v: anytype, options: Options) error{OutOfMemory}![]u8 {
619		var aw: std.io.Writer.Allocating = .init(gpa);
	619	var aw: Writer.Allocating = .init(gpa);
620	620	defer aw.deinit();
621	621	value(v, options, &aw.writer) catch return error.OutOfMemory;
622	622	return aw.toOwnedSlice();

lib/std/json/dynamic_test.zig+1-1

...	...	@@ -4,7 +4,7 @@ const mem = std.mem;
4	4	const testing = std.testing;
5	5	const ArenaAllocator = std.heap.ArenaAllocator;
6	6	const Allocator = std.mem.Allocator;
7		const Writer = std.io.Writer;
	7	const Writer = std.Io.Writer;
8	8
9	9	const ObjectMap = @import("dynamic.zig").ObjectMap;
10	10	const Array = @import("dynamic.zig").Array;

lib/std/leb128.zig+22-251

...	...	@@ -2,120 +2,6 @@ const builtin = @import("builtin");
2	2	const std = @import("std");
3	3	const testing = std.testing;
4	4
5		/// Read a single unsigned LEB128 value from the given reader as type T,
6		/// or error.Overflow if the value cannot fit.
7		pub fn readUleb128(comptime T: type, reader: anytype) !T {
8		const U = if (@typeInfo(T).int.bits < 8) u8 else T;
9		const ShiftT = std.math.Log2Int(U);
10
11		const max_group = (@typeInfo(U).int.bits + 6) / 7;
12
13		var value: U = 0;
14		var group: ShiftT = 0;
15
16		while (group < max_group) : (group += 1) {
17		const byte = try reader.readByte();
18
19		const ov = @shlWithOverflow(@as(U, byte & 0x7f), group * 7);
20		if (ov[1] != 0) return error.Overflow;
21
22		value \|= ov[0];
23		if (byte & 0x80 == 0) break;
24		} else {
25		return error.Overflow;
26		}
27
28		// only applies in the case that we extended to u8
29		if (U != T) {
30		if (value > std.math.maxInt(T)) return error.Overflow;
31		}
32
33		return @as(T, @truncate(value));
34		}
35
36		/// Read a single signed LEB128 value from the given reader as type T,
37		/// or error.Overflow if the value cannot fit.
38		pub fn readIleb128(comptime T: type, reader: anytype) !T {
39		const S = if (@typeInfo(T).int.bits < 8) i8 else T;
40		const U = std.meta.Int(.unsigned, @typeInfo(S).int.bits);
41		const ShiftU = std.math.Log2Int(U);
42
43		const max_group = (@typeInfo(U).int.bits + 6) / 7;
44
45		var value = @as(U, 0);
46		var group = @as(ShiftU, 0);
47
48		while (group < max_group) : (group += 1) {
49		const byte = try reader.readByte();
50
51		const shift = group * 7;
52		const ov = @shlWithOverflow(@as(U, byte & 0x7f), shift);
53		if (ov[1] != 0) {
54		// Overflow is ok so long as the sign bit is set and this is the last byte
55		if (byte & 0x80 != 0) return error.Overflow;
56		if (@as(S, @bitCast(ov[0])) >= 0) return error.Overflow;
57
58		// and all the overflowed bits are 1
59		const remaining_shift = @as(u3, @intCast(@typeInfo(U).int.bits - @as(u16, shift)));
60		const remaining_bits = @as(i8, @bitCast(byte \| 0x80)) >> remaining_shift;
61		if (remaining_bits != -1) return error.Overflow;
62		} else {
63		// If we don't overflow and this is the last byte and the number being decoded
64		// is negative, check that the remaining bits are 1
65		if ((byte & 0x80 == 0) and (@as(S, @bitCast(ov[0])) < 0)) {
66		const remaining_shift = @as(u3, @intCast(@typeInfo(U).int.bits - @as(u16, shift)));
67		const remaining_bits = @as(i8, @bitCast(byte \| 0x80)) >> remaining_shift;
68		if (remaining_bits != -1) return error.Overflow;
69		}
70		}
71
72		value \|= ov[0];
73		if (byte & 0x80 == 0) {
74		const needs_sign_ext = group + 1 < max_group;
75		if (byte & 0x40 != 0 and needs_sign_ext) {
76		const ones = @as(S, -1);
77		value \|= @as(U, @bitCast(ones)) << (shift + 7);
78		}
79		break;
80		}
81		} else {
82		return error.Overflow;
83		}
84
85		const result = @as(S, @bitCast(value));
86		// Only applies if we extended to i8
87		if (S != T) {
88		if (result > std.math.maxInt(T) or result < std.math.minInt(T)) return error.Overflow;
89		}
90
91		return @as(T, @truncate(result));
92		}
93
94		/// Write a single signed integer as signed LEB128 to the given writer.
95		pub fn writeIleb128(writer: anytype, arg: anytype) !void {
96		const Arg = @TypeOf(arg);
97		const Int = switch (Arg) {
98		comptime_int => std.math.IntFittingRange(-@abs(arg), @abs(arg)),
99		else => Arg,
100		};
101		const Signed = if (@typeInfo(Int).int.bits < 8) i8 else Int;
102		const Unsigned = std.meta.Int(.unsigned, @typeInfo(Signed).int.bits);
103		var value: Signed = arg;
104
105		while (true) {
106		const unsigned: Unsigned = @bitCast(value);
107		const byte: u8 = @truncate(unsigned);
108		value >>= 6;
109		if (value == -1 or value == 0) {
110		try writer.writeByte(byte & 0x7F);
111		break;
112		} else {
113		value >>= 1;
114		try writer.writeByte(byte \| 0x80);
115		}
116		}
117		}
118
119	5	/// This is an "advanced" function. It allows one to use a fixed amount of memory to store a
120	6	/// ULEB128. This defeats the entire purpose of using this data encoding; it will no longer use
121	7	/// fewer bytes to store smaller numbers. The advantage of using a fixed width is that it makes
...	...	@@ -149,22 +35,26 @@ test writeUnsignedFixed {
149	35	{
150	36	var buf: [4]u8 = undefined;
151	37	writeUnsignedFixed(4, &buf, 0);
152		try testing.expect((try test_read_uleb128(u64, &buf)) == 0);
	38	var reader: std.Io.Reader = .fixed(&buf);
	39	try testing.expectEqual(0, try reader.takeLeb128(u64));
153	40	}
154	41	{
155	42	var buf: [4]u8 = undefined;
156	43	writeUnsignedFixed(4, &buf, 1);
157		try testing.expect((try test_read_uleb128(u64, &buf)) == 1);
	44	var reader: std.Io.Reader = .fixed(&buf);
	45	try testing.expectEqual(1, try reader.takeLeb128(u64));
158	46	}
159	47	{
160	48	var buf: [4]u8 = undefined;
161	49	writeUnsignedFixed(4, &buf, 1000);
162		try testing.expect((try test_read_uleb128(u64, &buf)) == 1000);
	50	var reader: std.Io.Reader = .fixed(&buf);
	51	try testing.expectEqual(1000, try reader.takeLeb128(u64));
163	52	}
164	53	{
165	54	var buf: [4]u8 = undefined;
166	55	writeUnsignedFixed(4, &buf, 10000000);
167		try testing.expect((try test_read_uleb128(u64, &buf)) == 10000000);
	56	var reader: std.Io.Reader = .fixed(&buf);
	57	try testing.expectEqual(10000000, try reader.takeLeb128(u64));
168	58	}
169	59	}
170	60
...	...	@@ -193,162 +83,43 @@ test writeSignedFixed {
193	83	{
194	84	var buf: [4]u8 = undefined;
195	85	writeSignedFixed(4, &buf, 0);
196		try testing.expect((try test_read_ileb128(i64, &buf)) == 0);
	86	var reader: std.Io.Reader = .fixed(&buf);
	87	try testing.expectEqual(0, try reader.takeLeb128(i64));
197	88	}
198	89	{
199	90	var buf: [4]u8 = undefined;
200	91	writeSignedFixed(4, &buf, 1);
201		try testing.expect((try test_read_ileb128(i64, &buf)) == 1);
	92	var reader: std.Io.Reader = .fixed(&buf);
	93	try testing.expectEqual(1, try reader.takeLeb128(i64));
202	94	}
203	95	{
204	96	var buf: [4]u8 = undefined;
205	97	writeSignedFixed(4, &buf, -1);
206		try testing.expect((try test_read_ileb128(i64, &buf)) == -1);
	98	var reader: std.Io.Reader = .fixed(&buf);
	99	try testing.expectEqual(-1, try reader.takeLeb128(i64));
207	100	}
208	101	{
209	102	var buf: [4]u8 = undefined;
210	103	writeSignedFixed(4, &buf, 1000);
211		try testing.expect((try test_read_ileb128(i64, &buf)) == 1000);
	104	var reader: std.Io.Reader = .fixed(&buf);
	105	try testing.expectEqual(1000, try reader.takeLeb128(i64));
212	106	}
213	107	{
214	108	var buf: [4]u8 = undefined;
215	109	writeSignedFixed(4, &buf, -1000);
216		try testing.expect((try test_read_ileb128(i64, &buf)) == -1000);
	110	var reader: std.Io.Reader = .fixed(&buf);
	111	try testing.expectEqual(-1000, try reader.takeLeb128(i64));
217	112	}
218	113	{
219	114	var buf: [4]u8 = undefined;
220	115	writeSignedFixed(4, &buf, -10000000);
221		try testing.expect((try test_read_ileb128(i64, &buf)) == -10000000);
	116	var reader: std.Io.Reader = .fixed(&buf);
	117	try testing.expectEqual(-10000000, try reader.takeLeb128(i64));
222	118	}
223	119	{
224	120	var buf: [4]u8 = undefined;
225	121	writeSignedFixed(4, &buf, 10000000);
226		try testing.expect((try test_read_ileb128(i64, &buf)) == 10000000);
	122	var reader: std.Io.Reader = .fixed(&buf);
	123	try testing.expectEqual(10000000, try reader.takeLeb128(i64));
227	124	}
228	125	}
229
230		// tests
231		fn test_read_stream_ileb128(comptime T: type, encoded: []const u8) !T {
232		var reader = std.io.fixedBufferStream(encoded);
233		return try readIleb128(T, reader.reader());
234		}
235
236		fn test_read_stream_uleb128(comptime T: type, encoded: []const u8) !T {
237		var reader = std.io.fixedBufferStream(encoded);
238		return try readUleb128(T, reader.reader());
239		}
240
241		fn test_read_ileb128(comptime T: type, encoded: []const u8) !T {
242		var reader = std.io.fixedBufferStream(encoded);
243		const v1 = try readIleb128(T, reader.reader());
244		return v1;
245		}
246
247		fn test_read_uleb128(comptime T: type, encoded: []const u8) !T {
248		var reader = std.io.fixedBufferStream(encoded);
249		const v1 = try readUleb128(T, reader.reader());
250		return v1;
251		}
252
253		fn test_read_ileb128_seq(comptime T: type, comptime N: usize, encoded: []const u8) !void {
254		var reader = std.io.fixedBufferStream(encoded);
255		var i: usize = 0;
256		while (i < N) : (i += 1) {
257		_ = try readIleb128(T, reader.reader());
258		}
259		}
260
261		fn test_read_uleb128_seq(comptime T: type, comptime N: usize, encoded: []const u8) !void {
262		var reader = std.io.fixedBufferStream(encoded);
263		var i: usize = 0;
264		while (i < N) : (i += 1) {
265		_ = try readUleb128(T, reader.reader());
266		}
267		}
268
269		test "deserialize signed LEB128" {
270		// Truncated
271		try testing.expectError(error.EndOfStream, test_read_stream_ileb128(i64, "\x80"));
272
273		// Overflow
274		try testing.expectError(error.Overflow, test_read_ileb128(i8, "\x80\x80\x40"));
275		try testing.expectError(error.Overflow, test_read_ileb128(i16, "\x80\x80\x80\x40"));
276		try testing.expectError(error.Overflow, test_read_ileb128(i32, "\x80\x80\x80\x80\x40"));
277		try testing.expectError(error.Overflow, test_read_ileb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x40"));
278		try testing.expectError(error.Overflow, test_read_ileb128(i8, "\xff\x7e"));
279		try testing.expectError(error.Overflow, test_read_ileb128(i32, "\x80\x80\x80\x80\x08"));
280		try testing.expectError(error.Overflow, test_read_ileb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x01"));
281
282		// Decode SLEB128
283		try testing.expect((try test_read_ileb128(i64, "\x00")) == 0);
284		try testing.expect((try test_read_ileb128(i64, "\x01")) == 1);
285		try testing.expect((try test_read_ileb128(i64, "\x3f")) == 63);
286		try testing.expect((try test_read_ileb128(i64, "\x40")) == -64);
287		try testing.expect((try test_read_ileb128(i64, "\x41")) == -63);
288		try testing.expect((try test_read_ileb128(i64, "\x7f")) == -1);
289		try testing.expect((try test_read_ileb128(i64, "\x80\x01")) == 128);
290		try testing.expect((try test_read_ileb128(i64, "\x81\x01")) == 129);
291		try testing.expect((try test_read_ileb128(i64, "\xff\x7e")) == -129);
292		try testing.expect((try test_read_ileb128(i64, "\x80\x7f")) == -128);
293		try testing.expect((try test_read_ileb128(i64, "\x81\x7f")) == -127);
294		try testing.expect((try test_read_ileb128(i64, "\xc0\x00")) == 64);
295		try testing.expect((try test_read_ileb128(i64, "\xc7\x9f\x7f")) == -12345);
296		try testing.expect((try test_read_ileb128(i8, "\xff\x7f")) == -1);
297		try testing.expect((try test_read_ileb128(i16, "\xff\xff\x7f")) == -1);
298		try testing.expect((try test_read_ileb128(i32, "\xff\xff\xff\xff\x7f")) == -1);
299		try testing.expect((try test_read_ileb128(i32, "\x80\x80\x80\x80\x78")) == -0x80000000);
300		try testing.expect((try test_read_ileb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x7f")) == @as(i64, @bitCast(@as(u64, @intCast(0x8000000000000000)))));
301		try testing.expect((try test_read_ileb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x40")) == -0x4000000000000000);
302		try testing.expect((try test_read_ileb128(i64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x7f")) == -0x8000000000000000);
303
304		// Decode unnormalized SLEB128 with extra padding bytes.
305		try testing.expect((try test_read_ileb128(i64, "\x80\x00")) == 0);
306		try testing.expect((try test_read_ileb128(i64, "\x80\x80\x00")) == 0);
307		try testing.expect((try test_read_ileb128(i64, "\xff\x00")) == 0x7f);
308		try testing.expect((try test_read_ileb128(i64, "\xff\x80\x00")) == 0x7f);
309		try testing.expect((try test_read_ileb128(i64, "\x80\x81\x00")) == 0x80);
310		try testing.expect((try test_read_ileb128(i64, "\x80\x81\x80\x00")) == 0x80);
311
312		// Decode sequence of SLEB128 values
313		try test_read_ileb128_seq(i64, 4, "\x81\x01\x3f\x80\x7f\x80\x80\x80\x00");
314		}
315
316		test "deserialize unsigned LEB128" {
317		// Truncated
318		try testing.expectError(error.EndOfStream, test_read_stream_uleb128(u64, "\x80"));
319
320		// Overflow
321		try testing.expectError(error.Overflow, test_read_uleb128(u8, "\x80\x02"));
322		try testing.expectError(error.Overflow, test_read_uleb128(u8, "\x80\x80\x40"));
323		try testing.expectError(error.Overflow, test_read_uleb128(u16, "\x80\x80\x84"));
324		try testing.expectError(error.Overflow, test_read_uleb128(u16, "\x80\x80\x80\x40"));
325		try testing.expectError(error.Overflow, test_read_uleb128(u32, "\x80\x80\x80\x80\x90"));
326		try testing.expectError(error.Overflow, test_read_uleb128(u32, "\x80\x80\x80\x80\x40"));
327		try testing.expectError(error.Overflow, test_read_uleb128(u64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x40"));
328
329		// Decode ULEB128
330		try testing.expect((try test_read_uleb128(u64, "\x00")) == 0);
331		try testing.expect((try test_read_uleb128(u64, "\x01")) == 1);
332		try testing.expect((try test_read_uleb128(u64, "\x3f")) == 63);
333		try testing.expect((try test_read_uleb128(u64, "\x40")) == 64);
334		try testing.expect((try test_read_uleb128(u64, "\x7f")) == 0x7f);
335		try testing.expect((try test_read_uleb128(u64, "\x80\x01")) == 0x80);
336		try testing.expect((try test_read_uleb128(u64, "\x81\x01")) == 0x81);
337		try testing.expect((try test_read_uleb128(u64, "\x90\x01")) == 0x90);
338		try testing.expect((try test_read_uleb128(u64, "\xff\x01")) == 0xff);
339		try testing.expect((try test_read_uleb128(u64, "\x80\x02")) == 0x100);
340		try testing.expect((try test_read_uleb128(u64, "\x81\x02")) == 0x101);
341		try testing.expect((try test_read_uleb128(u64, "\x80\xc1\x80\x80\x10")) == 4294975616);
342		try testing.expect((try test_read_uleb128(u64, "\x80\x80\x80\x80\x80\x80\x80\x80\x80\x01")) == 0x8000000000000000);
343
344		// Decode ULEB128 with extra padding bytes
345		try testing.expect((try test_read_uleb128(u64, "\x80\x00")) == 0);
346		try testing.expect((try test_read_uleb128(u64, "\x80\x80\x00")) == 0);
347		try testing.expect((try test_read_uleb128(u64, "\xff\x00")) == 0x7f);
348		try testing.expect((try test_read_uleb128(u64, "\xff\x80\x00")) == 0x7f);
349		try testing.expect((try test_read_uleb128(u64, "\x80\x81\x00")) == 0x80);
350		try testing.expect((try test_read_uleb128(u64, "\x80\x81\x80\x00")) == 0x80);
351
352		// Decode sequence of ULEB128 values
353		try test_read_uleb128_seq(u64, 4, "\x81\x01\x3f\x80\x7f\x80\x80\x80\x00");
354		}

lib/std/macho.zig-1

...	...	@@ -1,7 +1,6 @@
1	1	const std = @import("std");
2	2	const builtin = @import("builtin");
3	3	const assert = std.debug.assert;
4		const io = std.io;
5	4	const mem = std.mem;
6	5	const meta = std.meta;
7	6	const testing = std.testing;

lib/std/math/big/int.zig+5-5

...	...	@@ -2029,11 +2029,11 @@ pub const Mutable = struct {
2029	2029	r.len = llnormalize(r.limbs[0..length]);
2030	2030	}
2031	2031
2032		pub fn format(self: Mutable, w: *std.io.Writer) std.io.Writer.Error!void {
	2032	pub fn format(self: Mutable, w: *std.Io.Writer) std.Io.Writer.Error!void {
2033	2033	return formatNumber(self, w, .{});
2034	2034	}
2035	2035
2036		pub fn formatNumber(self: Const, w: *std.io.Writer, n: std.fmt.Number) std.io.Writer.Error!void {
	2036	pub fn formatNumber(self: Const, w: *std.Io.Writer, n: std.fmt.Number) std.Io.Writer.Error!void {
2037	2037	return self.toConst().formatNumber(w, n);
2038	2038	}
2039	2039	};
...	...	@@ -2326,7 +2326,7 @@ pub const Const = struct {
2326	2326	/// this function will fail to print the string, printing "(BigInt)" instead of a number.
2327	2327	/// This is because the rendering algorithm requires reversing a string, which requires O(N) memory.
2328	2328	/// See `toString` and `toStringAlloc` for a way to print big integers without failure.
2329		pub fn formatNumber(self: Const, w: *std.io.Writer, number: std.fmt.Number) std.io.Writer.Error!void {
	2329	pub fn formatNumber(self: Const, w: *std.Io.Writer, number: std.fmt.Number) std.Io.Writer.Error!void {
2330	2330	const available_len = 64;
2331	2331	if (self.limbs.len > available_len)
2332	2332	return w.writeAll("(BigInt)");
...	...	@@ -2907,7 +2907,7 @@ pub const Managed = struct {
2907	2907	}
2908	2908
2909	2909	/// To allow `std.fmt.format` to work with `Managed`.
2910		pub fn format(self: Managed, w: *std.io.Writer) std.io.Writer.Error!void {
	2910	pub fn format(self: Managed, w: *std.Io.Writer) std.Io.Writer.Error!void {
2911	2911	return formatNumber(self, w, .{});
2912	2912	}
2913	2913
...	...	@@ -2915,7 +2915,7 @@ pub const Managed = struct {
2915	2915	/// this function will fail to print the string, printing "(BigInt)" instead of a number.
2916	2916	/// This is because the rendering algorithm requires reversing a string, which requires O(N) memory.
2917	2917	/// See `toString` and `toStringAlloc` for a way to print big integers without failure.
2918		pub fn formatNumber(self: Managed, w: *std.io.Writer, n: std.fmt.Number) std.io.Writer.Error!void {
	2918	pub fn formatNumber(self: Managed, w: *std.Io.Writer, n: std.fmt.Number) std.Io.Writer.Error!void {
2919	2919	return self.toConst().formatNumber(w, n);
2920	2920	}
2921	2921

lib/std/os/uefi.zig+1-1

...	...	@@ -106,7 +106,7 @@ pub const Guid = extern struct {
106	106	node: [6]u8,
107	107
108	108	/// Format GUID into hexadecimal lowercase xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx format
109		pub fn format(self: Guid, writer: *std.io.Writer) std.io.Writer.Error!void {
	109	pub fn format(self: Guid, writer: *std.Io.Writer) std.Io.Writer.Error!void {
110	110	const time_low = @byteSwap(self.time_low);
111	111	const time_mid = @byteSwap(self.time_mid);
112	112	const time_high_and_version = @byteSwap(self.time_high_and_version);

lib/std/os/uefi/protocol/file.zig-1

...	...	@@ -1,6 +1,5 @@
1	1	const std = @import("std");
2	2	const uefi = std.os.uefi;
3		const io = std.io;
4	3	const Guid = uefi.Guid;
5	4	const Time = uefi.Time;
6	5	const Status = uefi.Status;

lib/std/os/uefi/tables.zig+1-1

...	...	@@ -90,7 +90,7 @@ pub const MemoryType = enum(u32) {
90	90	return @truncate(as_int - vendor_start);
91	91	}
92	92
93		pub fn format(self: MemoryType, w: *std.io.Writer) std.io.Writer.Error!void {
	93	pub fn format(self: MemoryType, w: *std.Io.Writer) std.Io.Writer.Error!void {
94	94	if (self.toOem()) \|oemval\|
95	95	try w.print("OEM({X})", .{oemval})
96	96	else if (self.toVendor()) \|vendorval\|

lib/std/pdb.zig-1

...	...	@@ -8,7 +8,6 @@
8	8	//! documentation and/or contributors.
9	9
10	10	const std = @import("std.zig");
11		const io = std.io;
12	11	const math = std.math;
13	12	const mem = std.mem;
14	13	const coff = std.coff;

lib/std/posix.zig+2-2

...	...	@@ -671,8 +671,8 @@ fn getRandomBytesDevURandom(buf: []u8) !void {
671	671	}
672	672
673	673	const file: fs.File = .{ .handle = fd };
674		const stream = file.deprecatedReader();
675		stream.readNoEof(buf) catch return error.Unexpected;
	674	var file_reader = file.readerStreaming(&.{});
	675	file_reader.readSliceAll(buf) catch return error.Unexpected;
676	676	}
677	677
678	678	/// Causes abnormal process termination.

lib/std/posix/test.zig+4-7

...	...	@@ -4,7 +4,6 @@ const testing = std.testing;
4	4	const expect = testing.expect;
5	5	const expectEqual = testing.expectEqual;
6	6	const expectError = testing.expectError;
7		const io = std.io;
8	7	const fs = std.fs;
9	8	const mem = std.mem;
10	9	const elf = std.elf;
...	...	@@ -706,12 +705,11 @@ test "mmap" {
706	705	);
707	706	defer posix.munmap(data);
708	707
709		var mem_stream = io.fixedBufferStream(data);
710		const stream = mem_stream.reader();
	708	var stream: std.Io.Reader = .fixed(data);
711	709
712	710	var i: usize = 0;
713	711	while (i < alloc_size / @sizeOf(u32)) : (i += 1) {
714		try testing.expectEqual(i, try stream.readInt(u32, .little));
	712	try testing.expectEqual(i, try stream.takeInt(u32, .little));
715	713	}
716	714	}
717	715
...	...	@@ -730,12 +728,11 @@ test "mmap" {
730	728	);
731	729	defer posix.munmap(data);
732	730
733		var mem_stream = io.fixedBufferStream(data);
734		const stream = mem_stream.reader();
	731	var stream: std.Io.Reader = .fixed(data);
735	732
736	733	var i: usize = alloc_size / 2 / @sizeOf(u32);
737	734	while (i < alloc_size / @sizeOf(u32)) : (i += 1) {
738		try testing.expectEqual(i, try stream.readInt(u32, .little));
	735	try testing.expectEqual(i, try stream.takeInt(u32, .little));
739	736	}
740	737	}
741	738	}

lib/std/process.zig+93-88

...	...	@@ -1552,103 +1552,108 @@ pub fn getUserInfo(name: []const u8) !UserInfo {
1552	1552	pub fn posixGetUserInfo(name: []const u8) !UserInfo {
1553	1553	const file = try std.fs.openFileAbsolute("/etc/passwd", .{});
1554	1554	defer file.close();
	1555	var buffer: [4096]u8 = undefined;
	1556	var file_reader = file.reader(&buffer);
	1557	return posixGetUserInfoPasswdStream(name, &file_reader.interface) catch \|err\| switch (err) {
	1558	error.ReadFailed => return file_reader.err.?,
	1559	error.EndOfStream => return error.UserNotFound,
	1560	error.CorruptPasswordFile => return error.CorruptPasswordFile,
	1561	};
	1562	}
1555	1563
1556		const reader = file.deprecatedReader();
1557
	1564	fn posixGetUserInfoPasswdStream(name: []const u8, reader: *std.Io.Reader) !UserInfo {
1558	1565	const State = enum {
1559		Start,
1560		WaitForNextLine,
1561		SkipPassword,
1562		ReadUserId,
1563		ReadGroupId,
	1566	start,
	1567	wait_for_next_line,
	1568	skip_password,
	1569	read_user_id,
	1570	read_group_id,
1564	1571	};
1565	1572
1566		var buf: [std.heap.page_size_min]u8 = undefined;
1567	1573	var name_index: usize = 0;
1568		var state = State.Start;
1569	1574	var uid: posix.uid_t = 0;
1570	1575	var gid: posix.gid_t = 0;
1571	1576
1572		while (true) {
1573		const amt_read = try reader.read(buf[0..]);
1574		for (buf[0..amt_read]) \|byte\| {
1575		switch (state) {
1576		.Start => switch (byte) {
1577		':' => {
1578		state = if (name_index == name.len) State.SkipPassword else State.WaitForNextLine;
1579		},
1580		'\n' => return error.CorruptPasswordFile,
1581		else => {
1582		if (name_index == name.len or name[name_index] != byte) {
1583		state = .WaitForNextLine;
1584		}
1585		name_index += 1;
1586		},
1587		},
1588		.WaitForNextLine => switch (byte) {
1589		'\n' => {
1590		name_index = 0;
1591		state = .Start;
1592		},
1593		else => continue,
1594		},
1595		.SkipPassword => switch (byte) {
1596		'\n' => return error.CorruptPasswordFile,
1597		':' => {
1598		state = .ReadUserId;
1599		},
1600		else => continue,
1601		},
1602		.ReadUserId => switch (byte) {
1603		':' => {
1604		state = .ReadGroupId;
1605		},
1606		'\n' => return error.CorruptPasswordFile,
1607		else => {
1608		const digit = switch (byte) {
1609		'0'...'9' => byte - '0',
1610		else => return error.CorruptPasswordFile,
1611		};
1612		{
1613		const ov = @mulWithOverflow(uid, 10);
1614		if (ov[1] != 0) return error.CorruptPasswordFile;
1615		uid = ov[0];
1616		}
1617		{
1618		const ov = @addWithOverflow(uid, digit);
1619		if (ov[1] != 0) return error.CorruptPasswordFile;
1620		uid = ov[0];
1621		}
1622		},
1623		},
1624		.ReadGroupId => switch (byte) {
1625		'\n', ':' => {
1626		return UserInfo{
1627		.uid = uid,
1628		.gid = gid,
1629		};
1630		},
1631		else => {
1632		const digit = switch (byte) {
1633		'0'...'9' => byte - '0',
1634		else => return error.CorruptPasswordFile,
1635		};
1636		{
1637		const ov = @mulWithOverflow(gid, 10);
1638		if (ov[1] != 0) return error.CorruptPasswordFile;
1639		gid = ov[0];
1640		}
1641		{
1642		const ov = @addWithOverflow(gid, digit);
1643		if (ov[1] != 0) return error.CorruptPasswordFile;
1644		gid = ov[0];
1645		}
1646		},
1647		},
1648		}
1649		}
1650		if (amt_read < buf.len) return error.UserNotFound;
	1577	sw: switch (State.start) {
	1578	.start => switch (try reader.takeByte()) {
	1579	':' => {
	1580	if (name_index == name.len) {
	1581	continue :sw .skip_password;
	1582	} else {
	1583	continue :sw .wait_for_next_line;
	1584	}
	1585	},
	1586	'\n' => return error.CorruptPasswordFile,
	1587	else => \|byte\| {
	1588	if (name_index == name.len or name[name_index] != byte) {
	1589	continue :sw .wait_for_next_line;
	1590	}
	1591	name_index += 1;
	1592	continue :sw .start;
	1593	},
	1594	},
	1595	.wait_for_next_line => switch (try reader.takeByte()) {
	1596	'\n' => {
	1597	name_index = 0;
	1598	continue :sw .start;
	1599	},
	1600	else => continue :sw .wait_for_next_line,
	1601	},
	1602	.skip_password => switch (try reader.takeByte()) {
	1603	'\n' => return error.CorruptPasswordFile,
	1604	':' => {
	1605	continue :sw .read_user_id;
	1606	},
	1607	else => continue :sw .skip_password,
	1608	},
	1609	.read_user_id => switch (try reader.takeByte()) {
	1610	':' => {
	1611	continue :sw .read_group_id;
	1612	},
	1613	'\n' => return error.CorruptPasswordFile,
	1614	else => \|byte\| {
	1615	const digit = switch (byte) {
	1616	'0'...'9' => byte - '0',
	1617	else => return error.CorruptPasswordFile,
	1618	};
	1619	{
	1620	const ov = @mulWithOverflow(uid, 10);
	1621	if (ov[1] != 0) return error.CorruptPasswordFile;
	1622	uid = ov[0];
	1623	}
	1624	{
	1625	const ov = @addWithOverflow(uid, digit);
	1626	if (ov[1] != 0) return error.CorruptPasswordFile;
	1627	uid = ov[0];
	1628	}
	1629	continue :sw .read_user_id;
	1630	},
	1631	},
	1632	.read_group_id => switch (try reader.takeByte()) {
	1633	'\n', ':' => return .{
	1634	.uid = uid,
	1635	.gid = gid,
	1636	},
	1637	else => \|byte\| {
	1638	const digit = switch (byte) {
	1639	'0'...'9' => byte - '0',
	1640	else => return error.CorruptPasswordFile,
	1641	};
	1642	{
	1643	const ov = @mulWithOverflow(gid, 10);
	1644	if (ov[1] != 0) return error.CorruptPasswordFile;
	1645	gid = ov[0];
	1646	}
	1647	{
	1648	const ov = @addWithOverflow(gid, digit);
	1649	if (ov[1] != 0) return error.CorruptPasswordFile;
	1650	gid = ov[0];
	1651	}
	1652	continue :sw .read_group_id;
	1653	},
	1654	},
1651	1655	}
	1656	comptime unreachable;
1652	1657	}
1653	1658
1654	1659	pub fn getBaseAddress() usize {

lib/std/std.zig-2

...	...	@@ -78,8 +78,6 @@ pub const hash = @import("hash.zig");
78	78	pub const hash_map = @import("hash_map.zig");
79	79	pub const heap = @import("heap.zig");
80	80	pub const http = @import("http.zig");
81		/// Deprecated
82		pub const io = Io;
83	81	pub const json = @import("json.zig");
84	82	pub const leb = @import("leb128.zig");
85	83	pub const log = @import("log.zig");

lib/std/tar/test.zig+5-5

...	...	@@ -336,7 +336,7 @@ fn testCase(case: Case) !void {
336	336	var file_name_buffer: [std.fs.max_path_bytes]u8 = undefined;
337	337	var link_name_buffer: [std.fs.max_path_bytes]u8 = undefined;
338	338
339		var br: std.io.Reader = .fixed(case.data);
	339	var br: std.Io.Reader = .fixed(case.data);
340	340	var it: tar.Iterator = .init(&br, .{
341	341	.file_name_buffer = &file_name_buffer,
342	342	.link_name_buffer = &link_name_buffer,
...	...	@@ -387,7 +387,7 @@ fn testLongNameCase(case: Case) !void {
387	387	var min_file_name_buffer: [256]u8 = undefined;
388	388	var min_link_name_buffer: [100]u8 = undefined;
389	389
390		var br: std.io.Reader = .fixed(case.data);
	390	var br: std.Io.Reader = .fixed(case.data);
391	391	var iter: tar.Iterator = .init(&br, .{
392	392	.file_name_buffer = &min_file_name_buffer,
393	393	.link_name_buffer = &min_link_name_buffer,
...	...	@@ -407,7 +407,7 @@ test "insufficient buffer in Header name filed" {
407	407	var min_file_name_buffer: [9]u8 = undefined;
408	408	var min_link_name_buffer: [100]u8 = undefined;
409	409
410		var br: std.io.Reader = .fixed(gnu_case.data);
	410	var br: std.Io.Reader = .fixed(gnu_case.data);
411	411	var iter: tar.Iterator = .init(&br, .{
412	412	.file_name_buffer = &min_file_name_buffer,
413	413	.link_name_buffer = &min_link_name_buffer,
...	...	@@ -462,7 +462,7 @@ test "should not overwrite existing file" {
462	462	// This ensures that file is not overwritten.
463	463	//
464	464	const data = @embedFile("testdata/overwrite_file.tar");
465		var r: std.io.Reader = .fixed(data);
	465	var r: std.Io.Reader = .fixed(data);
466	466
467	467	// Unpack with strip_components = 1 should fail
468	468	var root = std.testing.tmpDir(.{});
...	...	@@ -490,7 +490,7 @@ test "case sensitivity" {
490	490	// 18089/alacritty/Darkermatrix.yml
491	491	//
492	492	const data = @embedFile("testdata/18089.tar");
493		var r: std.io.Reader = .fixed(data);
	493	var r: std.Io.Reader = .fixed(data);
494	494
495	495	var root = std.testing.tmpDir(.{});
496	496	defer root.cleanup();

lib/std/testing.zig+8-8

...	...	@@ -358,7 +358,7 @@ test expectApproxEqRel {
358	358	/// This function is intended to be used only in tests. When the two slices are not
359	359	/// equal, prints diagnostics to stderr to show exactly how they are not equal (with
360	360	/// the differences highlighted in red), then returns a test failure error.
361		/// The colorized output is optional and controlled by the return of `std.io.tty.detectConfig()`.
	361	/// The colorized output is optional and controlled by the return of `std.Io.tty.detectConfig()`.
362	362	/// If your inputs are UTF-8 encoded strings, consider calling `expectEqualStrings` instead.
363	363	pub fn expectEqualSlices(comptime T: type, expected: []const T, actual: []const T) !void {
364	364	const diff_index: usize = diff_index: {
...	...	@@ -381,7 +381,7 @@ fn failEqualSlices(
381	381	expected: []const T,
382	382	actual: []const T,
383	383	diff_index: usize,
384		w: *std.io.Writer,
	384	w: *std.Io.Writer,
385	385	) !void {
386	386	try w.print("slices differ. first difference occurs at index {d} (0x{X})\n", .{ diff_index, diff_index });
387	387
...	...	@@ -401,7 +401,7 @@ fn failEqualSlices(
401	401	const actual_window = actual[window_start..@min(actual.len, window_start + max_window_size)];
402	402	const actual_truncated = window_start + actual_window.len < actual.len;
403	403
404		const ttyconf = std.io.tty.detectConfig(.stderr());
	404	const ttyconf = std.Io.tty.detectConfig(.stderr());
405	405	var differ = if (T == u8) BytesDiffer{
406	406	.expected = expected_window,
407	407	.actual = actual_window,
...	...	@@ -467,11 +467,11 @@ fn SliceDiffer(comptime T: type) type {
467	467	start_index: usize,
468	468	expected: []const T,
469	469	actual: []const T,
470		ttyconf: std.io.tty.Config,
	470	ttyconf: std.Io.tty.Config,
471	471
472	472	const Self = @This();
473	473
474		pub fn write(self: Self, writer: *std.io.Writer) !void {
	474	pub fn write(self: Self, writer: *std.Io.Writer) !void {
475	475	for (self.expected, 0..) \|value, i\| {
476	476	const full_index = self.start_index + i;
477	477	const diff = if (i < self.actual.len) !std.meta.eql(self.actual[i], value) else true;
...	...	@@ -490,9 +490,9 @@ fn SliceDiffer(comptime T: type) type {
490	490	const BytesDiffer = struct {
491	491	expected: []const u8,
492	492	actual: []const u8,
493		ttyconf: std.io.tty.Config,
	493	ttyconf: std.Io.tty.Config,
494	494
495		pub fn write(self: BytesDiffer, writer: *std.io.Writer) !void {
	495	pub fn write(self: BytesDiffer, writer: *std.Io.Writer) !void {
496	496	var expected_iterator = std.mem.window(u8, self.expected, 16, 16);
497	497	var row: usize = 0;
498	498	while (expected_iterator.next()) \|chunk\| {
...	...	@@ -538,7 +538,7 @@ const BytesDiffer = struct {
538	538	}
539	539	}
540	540
541		fn writeDiff(self: BytesDiffer, writer: *std.io.Writer, comptime fmt: []const u8, args: anytype, diff: bool) !void {
	541	fn writeDiff(self: BytesDiffer, writer: *std.Io.Writer, comptime fmt: []const u8, args: anytype, diff: bool) !void {
542	542	if (diff) try self.ttyconf.setColor(writer, .red);
543	543	try writer.print(fmt, args);
544	544	if (diff) try self.ttyconf.setColor(writer, .reset);

lib/std/unicode.zig+2-2

...	...	@@ -804,7 +804,7 @@ fn testDecode(bytes: []const u8) !u21 {
804	804	/// Ill-formed UTF-8 byte sequences are replaced by the replacement character (U+FFFD)
805	805	/// according to "U+FFFD Substitution of Maximal Subparts" from Chapter 3 of
806	806	/// the Unicode standard, and as specified by https://encoding.spec.whatwg.org/#utf-8-decoder
807		fn formatUtf8(utf8: []const u8, writer: *std.io.Writer) std.io.Writer.Error!void {
	807	fn formatUtf8(utf8: []const u8, writer: *std.Io.Writer) std.Io.Writer.Error!void {
808	808	var buf: [300]u8 = undefined; // just an arbitrary size
809	809	var u8len: usize = 0;
810	810
...	...	@@ -1464,7 +1464,7 @@ test calcWtf16LeLen {
1464	1464
1465	1465	/// Print the given `utf16le` string, encoded as UTF-8 bytes.
1466	1466	/// Unpaired surrogates are replaced by the replacement character (U+FFFD).
1467		fn formatUtf16Le(utf16le: []const u16, writer: *std.io.Writer) std.io.Writer.Error!void {
	1467	fn formatUtf16Le(utf16le: []const u16, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1468	1468	var buf: [300]u8 = undefined; // just an arbitrary size
1469	1469	var it = Utf16LeIterator.init(utf16le);
1470	1470	var u8len: usize = 0;

lib/std/zig.zig+3-3

...	...	@@ -51,9 +51,9 @@ pub const Color = enum {
51	51	/// Assume stderr is a terminal.
52	52	on,
53	53
54		pub fn get_tty_conf(color: Color) std.io.tty.Config {
	54	pub fn get_tty_conf(color: Color) std.Io.tty.Config {
55	55	return switch (color) {
56		.auto => std.io.tty.detectConfig(std.fs.File.stderr()),
	56	.auto => std.Io.tty.detectConfig(std.fs.File.stderr()),
57	57	.on => .escape_codes,
58	58	.off => .no_color,
59	59	};
...	...	@@ -322,7 +322,7 @@ pub const BuildId = union(enum) {
322	322	try std.testing.expectError(error.InvalidBuildIdStyle, parse("yaddaxxx"));
323	323	}
324	324
325		pub fn format(id: BuildId, writer: *std.io.Writer) std.io.Writer.Error!void {
	325	pub fn format(id: BuildId, writer: *std.Io.Writer) std.Io.Writer.Error!void {
326	326	switch (id) {
327	327	.none, .fast, .uuid, .sha1, .md5 => {
328	328	try writer.writeAll(@tagName(id));

lib/std/zig/Ast.zig+1-1

...	...	@@ -204,7 +204,7 @@ pub fn parse(gpa: Allocator, source: [:0]const u8, mode: Mode) Allocator.Error!A
204	204	/// `gpa` is used for allocating the resulting formatted source code.
205	205	/// Caller owns the returned slice of bytes, allocated with `gpa`.
206	206	pub fn renderAlloc(tree: Ast, gpa: Allocator) error{OutOfMemory}![]u8 {
207		var aw: std.io.Writer.Allocating = .init(gpa);
	207	var aw: std.Io.Writer.Allocating = .init(gpa);
208	208	defer aw.deinit();
209	209	render(tree, gpa, &aw.writer, .{}) catch \|err\| switch (err) {
210	210	error.WriteFailed, error.OutOfMemory => return error.OutOfMemory,

lib/std/zig/Ast/Render.zig+2-2

...	...	@@ -6,7 +6,7 @@ const meta = std.meta;
6	6	const Ast = std.zig.Ast;
7	7	const Token = std.zig.Token;
8	8	const primitives = std.zig.primitives;
9		const Writer = std.io.Writer;
	9	const Writer = std.Io.Writer;
10	10
11	11	const Render = @This();
12	12
...	...	@@ -2169,7 +2169,7 @@ fn renderArrayInit(
2169	2169
2170	2170	const section_exprs = row_exprs[0..section_end];
2171	2171
2172		var sub_expr_buffer: std.io.Writer.Allocating = .init(gpa);
	2172	var sub_expr_buffer: Writer.Allocating = .init(gpa);
2173	2173	defer sub_expr_buffer.deinit();
2174	2174
2175	2175	const sub_expr_buffer_starts = try gpa.alloc(usize, section_exprs.len + 1);

lib/std/zig/AstGen.zig+2-2

...	...	@@ -11339,7 +11339,7 @@ fn parseStrLit(
11339	11339	) InnerError!void {
11340	11340	const raw_string = bytes[offset..];
11341	11341	const result = r: {
11342		var aw: std.io.Writer.Allocating = .fromArrayList(astgen.gpa, buf);
	11342	var aw: std.Io.Writer.Allocating = .fromArrayList(astgen.gpa, buf);
11343	11343	defer buf.* = aw.toArrayList();
11344	11344	break :r std.zig.string_literal.parseWrite(&aw.writer, raw_string) catch \|err\| switch (err) {
11345	11345	error.WriteFailed => return error.OutOfMemory,
...	...	@@ -13785,7 +13785,7 @@ fn lowerAstErrors(astgen: *AstGen) error{OutOfMemory}!void {
13785	13785	const tree = astgen.tree;
13786	13786	assert(tree.errors.len > 0);
13787	13787
13788		var msg: std.io.Writer.Allocating = .init(gpa);
	13788	var msg: std.Io.Writer.Allocating = .init(gpa);
13789	13789	defer msg.deinit();
13790	13790	const msg_w = &msg.writer;
13791	13791

lib/std/zig/ErrorBundle.zig+7-7

...	...	@@ -11,7 +11,7 @@ const std = @import("std");
11	11	const ErrorBundle = @This();
12	12	const Allocator = std.mem.Allocator;
13	13	const assert = std.debug.assert;
14		const Writer = std.io.Writer;
	14	const Writer = std.Io.Writer;
15	15
16	16	string_bytes: []const u8,
17	17	/// The first thing in this array is an `ErrorMessageList`.
...	...	@@ -156,7 +156,7 @@ pub fn nullTerminatedString(eb: ErrorBundle, index: String) [:0]const u8 {
156	156	}
157	157
158	158	pub const RenderOptions = struct {
159		ttyconf: std.io.tty.Config,
	159	ttyconf: std.Io.tty.Config,
160	160	include_reference_trace: bool = true,
161	161	include_source_line: bool = true,
162	162	include_log_text: bool = true,
...	...	@@ -190,14 +190,14 @@ fn renderErrorMessageToWriter(
190	190	err_msg_index: MessageIndex,
191	191	w: *Writer,
192	192	kind: []const u8,
193		color: std.io.tty.Color,
	193	color: std.Io.tty.Color,
194	194	indent: usize,
195	195	) (Writer.Error \|\| std.posix.UnexpectedError)!void {
196	196	const ttyconf = options.ttyconf;
197	197	const err_msg = eb.getErrorMessage(err_msg_index);
198	198	if (err_msg.src_loc != .none) {
199	199	const src = eb.extraData(SourceLocation, @intFromEnum(err_msg.src_loc));
200		var prefix: std.io.Writer.Discarding = .init(&.{});
	200	var prefix: Writer.Discarding = .init(&.{});
201	201	try w.splatByteAll(' ', indent);
202	202	prefix.count += indent;
203	203	try ttyconf.setColor(w, .bold);
...	...	@@ -794,9 +794,9 @@ pub const Wip = struct {
794	794	};
795	795	defer bundle.deinit(std.testing.allocator);
796	796
797		const ttyconf: std.io.tty.Config = .no_color;
	797	const ttyconf: std.Io.tty.Config = .no_color;
798	798
799		var bundle_buf: std.io.Writer.Allocating = .init(std.testing.allocator);
	799	var bundle_buf: Writer.Allocating = .init(std.testing.allocator);
800	800	const bundle_bw = &bundle_buf.interface;
801	801	defer bundle_buf.deinit();
802	802	try bundle.renderToWriter(.{ .ttyconf = ttyconf }, bundle_bw);
...	...	@@ -812,7 +812,7 @@ pub const Wip = struct {
812	812	};
813	813	defer copy.deinit(std.testing.allocator);
814	814
815		var copy_buf: std.io.Writer.Allocating = .init(std.testing.allocator);
	815	var copy_buf: Writer.Allocating = .init(std.testing.allocator);
816	816	const copy_bw = &copy_buf.interface;
817	817	defer copy_buf.deinit();
818	818	try copy.renderToWriter(.{ .ttyconf = ttyconf }, copy_bw);

lib/std/zig/LibCInstallation.zig+1-1

...	...	@@ -43,7 +43,7 @@ pub fn parse(
43	43	}
44	44	}
45	45
46		const contents = try std.fs.cwd().readFileAlloc(allocator, libc_file, std.math.maxInt(usize));
	46	const contents = try std.fs.cwd().readFileAlloc(libc_file, allocator, .limited(std.math.maxInt(usize)));
47	47	defer allocator.free(contents);
48	48
49	49	var it = std.mem.tokenizeScalar(u8, contents, '\n');

lib/std/zig/WindowsSdk.zig+1-1

...	...	@@ -766,7 +766,7 @@ const MsvcLibDir = struct {
766	766	writer.writeByte(std.fs.path.sep) catch unreachable;
767	767	writer.writeAll("state.json") catch unreachable;
768	768
769		const json_contents = instances_dir.readFileAlloc(allocator, writer.buffered(), std.math.maxInt(usize)) catch continue;
	769	const json_contents = instances_dir.readFileAlloc(writer.buffered(), allocator, .limited(std.math.maxInt(usize))) catch continue;
770	770	defer allocator.free(json_contents);
771	771
772	772	var parsed = std.json.parseFromSlice(std.json.Value, allocator, json_contents, .{}) catch continue;

lib/std/zig/ZonGen.zig+4-4

...	...	@@ -9,7 +9,7 @@ const StringIndexContext = std.hash_map.StringIndexContext;
9	9	const ZonGen = @This();
10	10	const Zoir = @import("Zoir.zig");
11	11	const Ast = @import("Ast.zig");
12		const Writer = std.io.Writer;
	12	const Writer = std.Io.Writer;
13	13
14	14	gpa: Allocator,
15	15	tree: Ast,
...	...	@@ -472,7 +472,7 @@ fn appendIdentStr(zg: *ZonGen, ident_token: Ast.TokenIndex) error{ OutOfMemory,
472	472	const raw_string = zg.tree.tokenSlice(ident_token)[offset..];
473	473	try zg.string_bytes.ensureUnusedCapacity(gpa, raw_string.len);
474	474	const result = r: {
475		var aw: std.io.Writer.Allocating = .fromArrayList(gpa, &zg.string_bytes);
	475	var aw: Writer.Allocating = .fromArrayList(gpa, &zg.string_bytes);
476	476	defer zg.string_bytes = aw.toArrayList();
477	477	break :r std.zig.string_literal.parseWrite(&aw.writer, raw_string) catch \|err\| switch (err) {
478	478	error.WriteFailed => return error.OutOfMemory,
...	...	@@ -570,7 +570,7 @@ fn strLitAsString(zg: *ZonGen, str_node: Ast.Node.Index) error{ OutOfMemory, Bad
570	570	const size_hint = strLitSizeHint(zg.tree, str_node);
571	571	try string_bytes.ensureUnusedCapacity(gpa, size_hint);
572	572	const result = r: {
573		var aw: std.io.Writer.Allocating = .fromArrayList(gpa, &zg.string_bytes);
	573	var aw: Writer.Allocating = .fromArrayList(gpa, &zg.string_bytes);
574	574	defer zg.string_bytes = aw.toArrayList();
575	575	break :r parseStrLit(zg.tree, str_node, &aw.writer) catch \|err\| switch (err) {
576	576	error.WriteFailed => return error.OutOfMemory,
...	...	@@ -885,7 +885,7 @@ fn lowerAstErrors(zg: *ZonGen) Allocator.Error!void {
885	885	const tree = zg.tree;
886	886	assert(tree.errors.len > 0);
887	887
888		var msg: std.io.Writer.Allocating = .init(gpa);
	888	var msg: Writer.Allocating = .init(gpa);
889	889	defer msg.deinit();
890	890	const msg_bw = &msg.writer;
891	891

lib/std/zig/llvm/Builder.zig+1-1

...	...	@@ -7,7 +7,7 @@ const builtin = @import("builtin");
7	7	const DW = std.dwarf;
8	8	const ir = @import("ir.zig");
9	9	const log = std.log.scoped(.llvm);
10		const Writer = std.io.Writer;
	10	const Writer = std.Io.Writer;
11	11
12	12	gpa: Allocator,
13	13	strip: bool,

lib/std/zig/parser_test.zig-1

...	...	@@ -1,7 +1,6 @@
1	1	const std = @import("std");
2	2	const mem = std.mem;
3	3	const print = std.debug.print;
4		const io = std.io;
5	4	const maxInt = std.math.maxInt;
6	5
7	6	test "zig fmt: remove extra whitespace at start and end of file with comment between" {

lib/std/zig/string_literal.zig+3-3

...	...	@@ -1,7 +1,7 @@
1	1	const std = @import("../std.zig");
2	2	const assert = std.debug.assert;
3	3	const utf8Encode = std.unicode.utf8Encode;
4		const Writer = std.io.Writer;
	4	const Writer = std.Io.Writer;
5	5
6	6	pub const ParseError = error{
7	7	OutOfMemory,
...	...	@@ -45,7 +45,7 @@ pub const Error = union(enum) {
45	45	raw_string: []const u8,
46	46	};
47	47
48		fn formatMessage(self: FormatMessage, writer: *std.io.Writer) std.io.Writer.Error!void {
	48	fn formatMessage(self: FormatMessage, writer: *Writer) Writer.Error!void {
49	49	switch (self.err) {
50	50	.invalid_escape_character => \|bad_index\| try writer.print(
51	51	"invalid escape character: '{c}'",
...	...	@@ -358,7 +358,7 @@ pub fn parseWrite(writer: *Writer, bytes: []const u8) Writer.Error!Result {
358	358	/// Higher level API. Does not return extra info about parse errors.
359	359	/// Caller owns returned memory.
360	360	pub fn parseAlloc(allocator: std.mem.Allocator, bytes: []const u8) ParseError![]u8 {
361		var aw: std.io.Writer.Allocating = .init(allocator);
	361	var aw: Writer.Allocating = .init(allocator);
362	362	defer aw.deinit();
363	363	const result = parseWrite(&aw.writer, bytes) catch \|err\| switch (err) {
364	364	error.WriteFailed => return error.OutOfMemory,

lib/std/zip.zig+2-2

...	...	@@ -195,12 +195,12 @@ pub const Decompress = struct {
195	195	};
196	196	}
197	197
198		fn streamStore(r: Reader, w: Writer, limit: std.io.Limit) Reader.StreamError!usize {
	198	fn streamStore(r: Reader, w: Writer, limit: std.Io.Limit) Reader.StreamError!usize {
199	199	const d: *Decompress = @fieldParentPtr("interface", r);
200	200	return d.store.read(w, limit);
201	201	}
202	202
203		fn streamDeflate(r: Reader, w: Writer, limit: std.io.Limit) Reader.StreamError!usize {
	203	fn streamDeflate(r: Reader, w: Writer, limit: std.Io.Limit) Reader.StreamError!usize {
204	204	const d: *Decompress = @fieldParentPtr("interface", r);
205	205	return flate.Decompress.read(&d.inflate, w, limit);
206	206	}

lib/ubsan_rt.zig+1-1

...	...	@@ -119,7 +119,7 @@ const Value = extern struct {
119	119	}
120	120	}
121	121
122		pub fn format(value: Value, writer: *std.io.Writer) std.io.Writer.Error!void {
	122	pub fn format(value: Value, writer: *std.Io.Writer) std.Io.Writer.Error!void {
123	123	// Work around x86_64 backend limitation.
124	124	if (builtin.zig_backend == .stage2_x86_64 and builtin.os.tag == .windows) {
125	125	try writer.writeAll("(unknown)");

src/Air.zig+1-1

...	...	@@ -961,7 +961,7 @@ pub const Inst = struct {
961	961	return index.unwrap().target;
962	962	}
963	963
964		pub fn format(index: Index, w: *std.io.Writer) std.io.Writer.Error!void {
	964	pub fn format(index: Index, w: *std.Io.Writer) std.Io.Writer.Error!void {
965	965	try w.writeByte('%');
966	966	switch (index.unwrap()) {
967	967	.ref => {},

src/Air/Liveness.zig+3-2

...	...	@@ -10,6 +10,7 @@ const log = std.log.scoped(.liveness);
10	10	const assert = std.debug.assert;
11	11	const Allocator = std.mem.Allocator;
12	12	const Log2Int = std.math.Log2Int;
	13	const Writer = std.Io.Writer;
13	14
14	15	const Liveness = @This();
15	16	const trace = @import("../tracy.zig").trace;
...	...	@@ -2037,7 +2038,7 @@ fn fmtInstSet(set: *const std.AutoHashMapUnmanaged(Air.Inst.Index, void)) FmtIns
2037	2038	const FmtInstSet = struct {
2038	2039	set: *const std.AutoHashMapUnmanaged(Air.Inst.Index, void),
2039	2040
2040		pub fn format(val: FmtInstSet, w: *std.io.Writer) std.io.Writer.Error!void {
	2041	pub fn format(val: FmtInstSet, w: *Writer) Writer.Error!void {
2041	2042	if (val.set.count() == 0) {
2042	2043	try w.writeAll("[no instructions]");
2043	2044	return;
...	...	@@ -2057,7 +2058,7 @@ fn fmtInstList(list: []const Air.Inst.Index) FmtInstList {
2057	2058	const FmtInstList = struct {
2058	2059	list: []const Air.Inst.Index,
2059	2060
2060		pub fn format(val: FmtInstList, w: *std.io.Writer) std.io.Writer.Error!void {
	2061	pub fn format(val: FmtInstList, w: *Writer) Writer.Error!void {
2061	2062	if (val.list.len == 0) {
2062	2063	try w.writeAll("[no instructions]");
2063	2064	return;

src/Air/print.zig+48-48

...	...	@@ -9,7 +9,7 @@ const Type = @import("../Type.zig");
9	9	const Air = @import("../Air.zig");
10	10	const InternPool = @import("../InternPool.zig");
11	11
12		pub fn write(air: Air, stream: *std.io.Writer, pt: Zcu.PerThread, liveness: ?Air.Liveness) void {
	12	pub fn write(air: Air, stream: *std.Io.Writer, pt: Zcu.PerThread, liveness: ?Air.Liveness) void {
13	13	comptime assert(build_options.enable_debug_extensions);
14	14	const instruction_bytes = air.instructions.len *
15	15	// Here we don't use @sizeOf(Air.Inst.Data) because it would include
...	...	@@ -55,7 +55,7 @@ pub fn write(air: Air, stream: *std.io.Writer, pt: Zcu.PerThread, liveness: ?Air
55	55
56	56	pub fn writeInst(
57	57	air: Air,
58		stream: *std.io.Writer,
	58	stream: *std.Io.Writer,
59	59	inst: Air.Inst.Index,
60	60	pt: Zcu.PerThread,
61	61	liveness: ?Air.Liveness,
...	...	@@ -92,16 +92,16 @@ const Writer = struct {
92	92	indent: usize,
93	93	skip_body: bool,
94	94
95		const Error = std.io.Writer.Error;
	95	const Error = std.Io.Writer.Error;
96	96
97		fn writeBody(w: Writer, s: std.io.Writer, body: []const Air.Inst.Index) Error!void {
	97	fn writeBody(w: Writer, s: std.Io.Writer, body: []const Air.Inst.Index) Error!void {
98	98	for (body) \|inst\| {
99	99	try w.writeInst(s, inst);
100	100	try s.writeByte('\n');
101	101	}
102	102	}
103	103
104		fn writeInst(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	104	fn writeInst(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
105	105	const tag = w.air.instructions.items(.tag)[@intFromEnum(inst)];
106	106	try s.splatByteAll(' ', w.indent);
107	107	try s.print("{f}{c}= {s}(", .{
...	...	@@ -341,48 +341,48 @@ const Writer = struct {
341	341	try s.writeByte(')');
342	342	}
343	343
344		fn writeBinOp(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	344	fn writeBinOp(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
345	345	const bin_op = w.air.instructions.items(.data)[@intFromEnum(inst)].bin_op;
346	346	try w.writeOperand(s, inst, 0, bin_op.lhs);
347	347	try s.writeAll(", ");
348	348	try w.writeOperand(s, inst, 1, bin_op.rhs);
349	349	}
350	350
351		fn writeUnOp(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	351	fn writeUnOp(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
352	352	const un_op = w.air.instructions.items(.data)[@intFromEnum(inst)].un_op;
353	353	try w.writeOperand(s, inst, 0, un_op);
354	354	}
355	355
356		fn writeNoOp(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	356	fn writeNoOp(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
357	357	_ = w;
358	358	_ = s;
359	359	_ = inst;
360	360	// no-op, no argument to write
361	361	}
362	362
363		fn writeType(w: Writer, s: std.io.Writer, ty: Type) !void {
	363	fn writeType(w: Writer, s: std.Io.Writer, ty: Type) !void {
364	364	return ty.print(s, w.pt);
365	365	}
366	366
367		fn writeTy(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	367	fn writeTy(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
368	368	const ty = w.air.instructions.items(.data)[@intFromEnum(inst)].ty;
369	369	try w.writeType(s, ty);
370	370	}
371	371
372		fn writeArg(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	372	fn writeArg(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
373	373	const arg = w.air.instructions.items(.data)[@intFromEnum(inst)].arg;
374	374	try w.writeType(s, arg.ty.toType());
375	375	try s.print(", {d}", .{arg.zir_param_index});
376	376	}
377	377
378		fn writeTyOp(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	378	fn writeTyOp(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
379	379	const ty_op = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
380	380	try w.writeType(s, ty_op.ty.toType());
381	381	try s.writeAll(", ");
382	382	try w.writeOperand(s, inst, 0, ty_op.operand);
383	383	}
384	384
385		fn writeBlock(w: Writer, s: std.io.Writer, tag: Air.Inst.Tag, inst: Air.Inst.Index) Error!void {
	385	fn writeBlock(w: Writer, s: std.Io.Writer, tag: Air.Inst.Tag, inst: Air.Inst.Index) Error!void {
386	386	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
387	387	try w.writeType(s, ty_pl.ty.toType());
388	388	const body: []const Air.Inst.Index = @ptrCast(switch (tag) {
...	...	@@ -423,7 +423,7 @@ const Writer = struct {
423	423	}
424	424	}
425	425
426		fn writeLoop(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	426	fn writeLoop(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
427	427	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
428	428	const extra = w.air.extraData(Air.Block, ty_pl.payload);
429	429	const body: []const Air.Inst.Index = @ptrCast(w.air.extra.items[extra.end..][0..extra.data.body_len]);
...	...	@@ -439,7 +439,7 @@ const Writer = struct {
439	439	try s.writeAll("}");
440	440	}
441	441
442		fn writeAggregateInit(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	442	fn writeAggregateInit(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
443	443	const zcu = w.pt.zcu;
444	444	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
445	445	const vector_ty = ty_pl.ty.toType();
...	...	@@ -455,7 +455,7 @@ const Writer = struct {
455	455	try s.writeAll("]");
456	456	}
457	457
458		fn writeUnionInit(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	458	fn writeUnionInit(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
459	459	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
460	460	const extra = w.air.extraData(Air.UnionInit, ty_pl.payload).data;
461	461
...	...	@@ -463,7 +463,7 @@ const Writer = struct {
463	463	try w.writeOperand(s, inst, 0, extra.init);
464	464	}
465	465
466		fn writeStructField(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	466	fn writeStructField(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
467	467	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
468	468	const extra = w.air.extraData(Air.StructField, ty_pl.payload).data;
469	469
...	...	@@ -471,7 +471,7 @@ const Writer = struct {
471	471	try s.print(", {d}", .{extra.field_index});
472	472	}
473	473
474		fn writeTyPlBin(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	474	fn writeTyPlBin(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
475	475	const data = w.air.instructions.items(.data);
476	476	const ty_pl = data[@intFromEnum(inst)].ty_pl;
477	477	const extra = w.air.extraData(Air.Bin, ty_pl.payload).data;
...	...	@@ -484,7 +484,7 @@ const Writer = struct {
484	484	try w.writeOperand(s, inst, 1, extra.rhs);
485	485	}
486	486
487		fn writeCmpxchg(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	487	fn writeCmpxchg(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
488	488	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
489	489	const extra = w.air.extraData(Air.Cmpxchg, ty_pl.payload).data;
490	490
...	...	@@ -498,7 +498,7 @@ const Writer = struct {
498	498	});
499	499	}
500	500
501		fn writeMulAdd(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	501	fn writeMulAdd(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
502	502	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
503	503	const extra = w.air.extraData(Air.Bin, pl_op.payload).data;
504	504
...	...	@@ -509,7 +509,7 @@ const Writer = struct {
509	509	try w.writeOperand(s, inst, 2, pl_op.operand);
510	510	}
511	511
512		fn writeShuffleOne(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	512	fn writeShuffleOne(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
513	513	const unwrapped = w.air.unwrapShuffleOne(w.pt.zcu, inst);
514	514	try w.writeType(s, unwrapped.result_ty);
515	515	try s.writeAll(", ");
...	...	@@ -525,7 +525,7 @@ const Writer = struct {
525	525	try s.writeByte(']');
526	526	}
527	527
528		fn writeShuffleTwo(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	528	fn writeShuffleTwo(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
529	529	const unwrapped = w.air.unwrapShuffleTwo(w.pt.zcu, inst);
530	530	try w.writeType(s, unwrapped.result_ty);
531	531	try s.writeAll(", ");
...	...	@@ -544,7 +544,7 @@ const Writer = struct {
544	544	try s.writeByte(']');
545	545	}
546	546
547		fn writeSelect(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	547	fn writeSelect(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
548	548	const zcu = w.pt.zcu;
549	549	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
550	550	const extra = w.air.extraData(Air.Bin, pl_op.payload).data;
...	...	@@ -559,14 +559,14 @@ const Writer = struct {
559	559	try w.writeOperand(s, inst, 2, extra.rhs);
560	560	}
561	561
562		fn writeReduce(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	562	fn writeReduce(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
563	563	const reduce = w.air.instructions.items(.data)[@intFromEnum(inst)].reduce;
564	564
565	565	try w.writeOperand(s, inst, 0, reduce.operand);
566	566	try s.print(", {s}", .{@tagName(reduce.operation)});
567	567	}
568	568
569		fn writeCmpVector(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	569	fn writeCmpVector(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
570	570	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
571	571	const extra = w.air.extraData(Air.VectorCmp, ty_pl.payload).data;
572	572
...	...	@@ -576,7 +576,7 @@ const Writer = struct {
576	576	try w.writeOperand(s, inst, 1, extra.rhs);
577	577	}
578	578
579		fn writeVectorStoreElem(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	579	fn writeVectorStoreElem(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
580	580	const data = w.air.instructions.items(.data)[@intFromEnum(inst)].vector_store_elem;
581	581	const extra = w.air.extraData(Air.VectorCmp, data.payload).data;
582	582
...	...	@@ -587,21 +587,21 @@ const Writer = struct {
587	587	try w.writeOperand(s, inst, 2, extra.rhs);
588	588	}
589	589
590		fn writeRuntimeNavPtr(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	590	fn writeRuntimeNavPtr(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
591	591	const ip = &w.pt.zcu.intern_pool;
592	592	const ty_nav = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_nav;
593	593	try w.writeType(s, .fromInterned(ty_nav.ty));
594	594	try s.print(", '{f}'", .{ip.getNav(ty_nav.nav).fqn.fmt(ip)});
595	595	}
596	596
597		fn writeAtomicLoad(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	597	fn writeAtomicLoad(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
598	598	const atomic_load = w.air.instructions.items(.data)[@intFromEnum(inst)].atomic_load;
599	599
600	600	try w.writeOperand(s, inst, 0, atomic_load.ptr);
601	601	try s.print(", {s}", .{@tagName(atomic_load.order)});
602	602	}
603	603
604		fn writePrefetch(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	604	fn writePrefetch(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
605	605	const prefetch = w.air.instructions.items(.data)[@intFromEnum(inst)].prefetch;
606	606
607	607	try w.writeOperand(s, inst, 0, prefetch.ptr);
...	...	@@ -612,7 +612,7 @@ const Writer = struct {
612	612
613	613	fn writeAtomicStore(
614	614	w: *Writer,
615		s: *std.io.Writer,
	615	s: *std.Io.Writer,
616	616	inst: Air.Inst.Index,
617	617	order: std.builtin.AtomicOrder,
618	618	) Error!void {
...	...	@@ -623,7 +623,7 @@ const Writer = struct {
623	623	try s.print(", {s}", .{@tagName(order)});
624	624	}
625	625
626		fn writeAtomicRmw(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	626	fn writeAtomicRmw(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
627	627	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
628	628	const extra = w.air.extraData(Air.AtomicRmw, pl_op.payload).data;
629	629
...	...	@@ -633,7 +633,7 @@ const Writer = struct {
633	633	try s.print(", {s}, {s}", .{ @tagName(extra.op()), @tagName(extra.ordering()) });
634	634	}
635	635
636		fn writeFieldParentPtr(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	636	fn writeFieldParentPtr(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
637	637	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
638	638	const extra = w.air.extraData(Air.FieldParentPtr, ty_pl.payload).data;
639	639
...	...	@@ -641,7 +641,7 @@ const Writer = struct {
641	641	try s.print(", {d}", .{extra.field_index});
642	642	}
643	643
644		fn writeAssembly(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	644	fn writeAssembly(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
645	645	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
646	646	const extra = w.air.extraData(Air.Asm, ty_pl.payload);
647	647	const is_volatile = extra.data.flags.is_volatile;
...	...	@@ -730,19 +730,19 @@ const Writer = struct {
730	730	try s.print(", \"{f}\"", .{std.zig.fmtString(asm_source)});
731	731	}
732	732
733		fn writeDbgStmt(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	733	fn writeDbgStmt(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
734	734	const dbg_stmt = w.air.instructions.items(.data)[@intFromEnum(inst)].dbg_stmt;
735	735	try s.print("{d}:{d}", .{ dbg_stmt.line + 1, dbg_stmt.column + 1 });
736	736	}
737	737
738		fn writeDbgVar(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	738	fn writeDbgVar(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
739	739	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
740	740	try w.writeOperand(s, inst, 0, pl_op.operand);
741	741	const name: Air.NullTerminatedString = @enumFromInt(pl_op.payload);
742	742	try s.print(", \"{f}\"", .{std.zig.fmtString(name.toSlice(w.air))});
743	743	}
744	744
745		fn writeCall(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	745	fn writeCall(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
746	746	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
747	747	const extra = w.air.extraData(Air.Call, pl_op.payload);
748	748	const args = @as([]const Air.Inst.Ref, @ptrCast(w.air.extra.items[extra.end..][0..extra.data.args_len]));
...	...	@@ -755,19 +755,19 @@ const Writer = struct {
755	755	try s.writeAll("]");
756	756	}
757	757
758		fn writeBr(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	758	fn writeBr(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
759	759	const br = w.air.instructions.items(.data)[@intFromEnum(inst)].br;
760	760	try w.writeInstIndex(s, br.block_inst, false);
761	761	try s.writeAll(", ");
762	762	try w.writeOperand(s, inst, 0, br.operand);
763	763	}
764	764
765		fn writeRepeat(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	765	fn writeRepeat(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
766	766	const repeat = w.air.instructions.items(.data)[@intFromEnum(inst)].repeat;
767	767	try w.writeInstIndex(s, repeat.loop_inst, false);
768	768	}
769	769
770		fn writeTry(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	770	fn writeTry(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
771	771	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
772	772	const extra = w.air.extraData(Air.Try, pl_op.payload);
773	773	const body: []const Air.Inst.Index = @ptrCast(w.air.extra.items[extra.end..][0..extra.data.body_len]);
...	...	@@ -801,7 +801,7 @@ const Writer = struct {
801	801	}
802	802	}
803	803
804		fn writeTryPtr(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	804	fn writeTryPtr(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
805	805	const ty_pl = w.air.instructions.items(.data)[@intFromEnum(inst)].ty_pl;
806	806	const extra = w.air.extraData(Air.TryPtr, ty_pl.payload);
807	807	const body: []const Air.Inst.Index = @ptrCast(w.air.extra.items[extra.end..][0..extra.data.body_len]);
...	...	@@ -838,7 +838,7 @@ const Writer = struct {
838	838	}
839	839	}
840	840
841		fn writeCondBr(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	841	fn writeCondBr(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
842	842	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
843	843	const extra = w.air.extraData(Air.CondBr, pl_op.payload);
844	844	const then_body: []const Air.Inst.Index = @ptrCast(w.air.extra.items[extra.end..][0..extra.data.then_body_len]);
...	...	@@ -897,7 +897,7 @@ const Writer = struct {
897	897	try s.writeAll("}");
898	898	}
899	899
900		fn writeSwitchBr(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	900	fn writeSwitchBr(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
901	901	const switch_br = w.air.unwrapSwitch(inst);
902	902
903	903	const liveness: Air.Liveness.SwitchBrTable = if (w.liveness) \|liveness\|
...	...	@@ -983,25 +983,25 @@ const Writer = struct {
983	983	try s.splatByteAll(' ', old_indent);
984	984	}
985	985
986		fn writeWasmMemorySize(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	986	fn writeWasmMemorySize(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
987	987	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
988	988	try s.print("{d}", .{pl_op.payload});
989	989	}
990	990
991		fn writeWasmMemoryGrow(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	991	fn writeWasmMemoryGrow(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
992	992	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
993	993	try s.print("{d}, ", .{pl_op.payload});
994	994	try w.writeOperand(s, inst, 0, pl_op.operand);
995	995	}
996	996
997		fn writeWorkDimension(w: Writer, s: std.io.Writer, inst: Air.Inst.Index) Error!void {
	997	fn writeWorkDimension(w: Writer, s: std.Io.Writer, inst: Air.Inst.Index) Error!void {
998	998	const pl_op = w.air.instructions.items(.data)[@intFromEnum(inst)].pl_op;
999	999	try s.print("{d}", .{pl_op.payload});
1000	1000	}
1001	1001
1002	1002	fn writeOperand(
1003	1003	w: *Writer,
1004		s: *std.io.Writer,
	1004	s: *std.Io.Writer,
1005	1005	inst: Air.Inst.Index,
1006	1006	op_index: usize,
1007	1007	operand: Air.Inst.Ref,
...	...	@@ -1027,7 +1027,7 @@ const Writer = struct {
1027	1027
1028	1028	fn writeInstRef(
1029	1029	w: *Writer,
1030		s: *std.io.Writer,
	1030	s: *std.Io.Writer,
1031	1031	operand: Air.Inst.Ref,
1032	1032	dies: bool,
1033	1033	) Error!void {
...	...	@@ -1047,7 +1047,7 @@ const Writer = struct {
1047	1047
1048	1048	fn writeInstIndex(
1049	1049	w: *Writer,
1050		s: *std.io.Writer,
	1050	s: *std.Io.Writer,
1051	1051	inst: Air.Inst.Index,
1052	1052	dies: bool,
1053	1053	) Error!void {

src/Compilation.zig+5-5

...	...	@@ -12,7 +12,7 @@ const ThreadPool = std.Thread.Pool;
12	12	const WaitGroup = std.Thread.WaitGroup;
13	13	const ErrorBundle = std.zig.ErrorBundle;
14	14	const fatal = std.process.fatal;
15		const Writer = std.io.Writer;
	15	const Writer = std.Io.Writer;
16	16
17	17	const Value = @import("Value.zig");
18	18	const Type = @import("Type.zig");
...	...	@@ -468,7 +468,7 @@ pub const Path = struct {
468	468	const Formatter = struct {
469	469	p: Path,
470	470	comp: *Compilation,
471		pub fn format(f: Formatter, w: *std.io.Writer) std.io.Writer.Error!void {
	471	pub fn format(f: Formatter, w: *Writer) Writer.Error!void {
472	472	const root_path: []const u8 = switch (f.p.root) {
473	473	.zig_lib => f.comp.dirs.zig_lib.path orelse ".",
474	474	.global_cache => f.comp.dirs.global_cache.path orelse ".",
...	...	@@ -1883,7 +1883,7 @@ pub const CreateDiagnostic = union(enum) {
1883	1883	sub: []const u8,
1884	1884	err: (fs.Dir.MakeError \|\| fs.Dir.OpenError \|\| fs.Dir.StatFileError),
1885	1885	};
1886		pub fn format(diag: CreateDiagnostic, w: *std.Io.Writer) std.Io.Writer.Error!void {
	1886	pub fn format(diag: CreateDiagnostic, w: *Writer) Writer.Error!void {
1887	1887	switch (diag) {
1888	1888	.export_table_import_table_conflict => try w.writeAll("'--import-table' and '--export-table' cannot be used together"),
1889	1889	.emit_h_without_zcu => try w.writeAll("cannot emit C header with no Zig source files"),
...	...	@@ -6457,7 +6457,7 @@ fn updateWin32Resource(comp: Compilation, win32_resource: Win32Resource, win32
6457	6457
6458	6458	// In .rc files, a " within a quoted string is escaped as ""
6459	6459	const fmtRcEscape = struct {
6460		fn formatRcEscape(bytes: []const u8, writer: *std.io.Writer) std.io.Writer.Error!void {
	6460	fn formatRcEscape(bytes: []const u8, writer: *Writer) Writer.Error!void {
6461	6461	for (bytes) \|byte\| switch (byte) {
6462	6462	'"' => try writer.writeAll("\"\""),
6463	6463	'\\' => try writer.writeAll("\\\\"),
...	...	@@ -6576,7 +6576,7 @@ fn updateWin32Resource(comp: Compilation, win32_resource: Win32Resource, win32
6576	6576	// Read depfile and update cache manifest
6577	6577	{
6578	6578	const dep_basename = fs.path.basename(out_dep_path);
6579		const dep_file_contents = try zig_cache_tmp_dir.readFileAlloc(arena, dep_basename, 50 * 1024 * 1024);
	6579	const dep_file_contents = try zig_cache_tmp_dir.readFileAlloc(dep_basename, arena, .limited(50 * 1024 * 1024));
6580	6580	defer arena.free(dep_file_contents);
6581	6581
6582	6582	const value = try std.json.parseFromSliceLeaky(std.json.Value, arena, dep_file_contents, .{});

src/InternPool.zig+15-15

...	...	@@ -1,6 +1,20 @@
1	1	//! All interned objects have both a value and a type.
2	2	//! This data structure is self-contained.
3	3
	4	const builtin = @import("builtin");
	5	const std = @import("std");
	6	const Allocator = std.mem.Allocator;
	7	const assert = std.debug.assert;
	8	const BigIntConst = std.math.big.int.Const;
	9	const BigIntMutable = std.math.big.int.Mutable;
	10	const Cache = std.Build.Cache;
	11	const Limb = std.math.big.Limb;
	12	const Hash = std.hash.Wyhash;
	13
	14	const InternPool = @This();
	15	const Zcu = @import("Zcu.zig");
	16	const Zir = std.zig.Zir;
	17
4	18	/// One item per thread, indexed by `tid`, which is dense and unique per thread.
5	19	locals: []Local,
6	20	/// Length must be a power of two and represents the number of simultaneous
...	...	@@ -1606,20 +1620,6 @@ fn getIndexMask(ip: *const InternPool, comptime BackingInt: type) u32 {
1606	1620
1607	1621	const FieldMap = std.ArrayHashMapUnmanaged(void, void, std.array_hash_map.AutoContext(void), false);
1608	1622
1609		const builtin = @import("builtin");
1610		const std = @import("std");
1611		const Allocator = std.mem.Allocator;
1612		const assert = std.debug.assert;
1613		const BigIntConst = std.math.big.int.Const;
1614		const BigIntMutable = std.math.big.int.Mutable;
1615		const Cache = std.Build.Cache;
1616		const Limb = std.math.big.Limb;
1617		const Hash = std.hash.Wyhash;
1618
1619		const InternPool = @This();
1620		const Zcu = @import("Zcu.zig");
1621		const Zir = std.zig.Zir;
1622
1623	1623	/// An index into `maps` which might be `none`.
1624	1624	pub const OptionalMapIndex = enum(u32) {
1625	1625	none = std.math.maxInt(u32),
...	...	@@ -1895,7 +1895,7 @@ pub const NullTerminatedString = enum(u32) {
1895	1895	ip: *const InternPool,
1896	1896	id: bool,
1897	1897	};
1898		fn format(data: FormatData, writer: *std.io.Writer) std.io.Writer.Error!void {
	1898	fn format(data: FormatData, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1899	1899	const slice = data.string.toSlice(data.ip);
1900	1900	if (!data.id) {
1901	1901	try writer.writeAll(slice);

src/Package/Fetch.zig+4-5

...	...	@@ -655,10 +655,9 @@ fn loadManifest(f: *Fetch, pkg_root: Cache.Path) RunError!void {
655	655	const eb = &f.error_bundle;
656	656	const arena = f.arena.allocator();
657	657	const manifest_bytes = pkg_root.root_dir.handle.readFileAllocOptions(
658		arena,
659	658	try fs.path.join(arena, &.{ pkg_root.sub_path, Manifest.basename }),
660		Manifest.max_bytes,
661		null,
	659	arena,
	660	.limited(Manifest.max_bytes),
662	661	.@"1",
663	662	0,
664	663	) catch \|err\| switch (err) {
...	...	@@ -2020,7 +2019,7 @@ const UnpackResult = struct {
2020	2019	// output errors to string
2021	2020	var errors = try fetch.error_bundle.toOwnedBundle("");
2022	2021	defer errors.deinit(gpa);
2023		var aw: std.io.Writer.Allocating = .init(gpa);
	2022	var aw: std.Io.Writer.Allocating = .init(gpa);
2024	2023	defer aw.deinit();
2025	2024	try errors.renderToWriter(.{ .ttyconf = .no_color }, &aw.writer);
2026	2025	try std.testing.expectEqualStrings(
...	...	@@ -2329,7 +2328,7 @@ const TestFetchBuilder = struct {
2329	2328	if (notes_len > 0) {
2330	2329	try std.testing.expectEqual(notes_len, em.notes_len);
2331	2330	}
2332		var aw: std.io.Writer.Allocating = .init(std.testing.allocator);
	2331	var aw: std.Io.Writer.Allocating = .init(std.testing.allocator);
2333	2332	defer aw.deinit();
2334	2333	try errors.renderToWriter(.{ .ttyconf = .no_color }, &aw.writer);
2335	2334	try std.testing.expectEqualStrings(msg, aw.written());

src/Package/Fetch/git.zig+3-3

...	...	@@ -146,7 +146,7 @@ pub const Oid = union(Format) {
146	146	} else error.InvalidOid;
147	147	}
148	148
149		pub fn format(oid: Oid, writer: *std.io.Writer) std.io.Writer.Error!void {
	149	pub fn format(oid: Oid, writer: *std.Io.Writer) std.Io.Writer.Error!void {
150	150	try writer.print("{x}", .{oid.slice()});
151	151	}
152	152
...	...	@@ -1599,7 +1599,7 @@ fn runRepositoryTest(comptime format: Oid.Format, head_commit: []const u8) !void
1599	1599	const max_file_size = 8192;
1600	1600
1601	1601	if (!skip_checksums) {
1602		const index_file_data = try git_dir.dir.readFileAlloc(testing.allocator, "testrepo.idx", max_file_size);
	1602	const index_file_data = try git_dir.dir.readFileAlloc("testrepo.idx", testing.allocator, .limited(max_file_size));
1603	1603	defer testing.allocator.free(index_file_data);
1604	1604	// testrepo.idx is generated by Git. The index created by this file should
1605	1605	// match it exactly. Running `git verify-pack -v testrepo.pack` can verify
...	...	@@ -1675,7 +1675,7 @@ fn runRepositoryTest(comptime format: Oid.Format, head_commit: []const u8) !void
1675	1675	\\revision 19
1676	1676	\\
1677	1677	;
1678		const actual_file_contents = try worktree.dir.readFileAlloc(testing.allocator, "file", max_file_size);
	1678	const actual_file_contents = try worktree.dir.readFileAlloc("file", testing.allocator, .limited(max_file_size));
1679	1679	defer testing.allocator.free(actual_file_contents);
1680	1680	try testing.expectEqualStrings(expected_file_contents, actual_file_contents);
1681	1681	}

src/Package/Manifest.zig+1-1

...	...	@@ -472,7 +472,7 @@ const Parse = struct {
472	472	) InnerError!void {
473	473	const raw_string = bytes[offset..];
474	474	const result = r: {
475		var aw: std.io.Writer.Allocating = .fromArrayList(p.gpa, buf);
	475	var aw: std.Io.Writer.Allocating = .fromArrayList(p.gpa, buf);
476	476	defer buf.* = aw.toArrayList();
477	477	break :r std.zig.string_literal.parseWrite(&aw.writer, raw_string) catch \|err\| switch (err) {
478	478	error.WriteFailed => return error.OutOfMemory,

src/Sema.zig+5-5

...	...	@@ -3080,7 +3080,7 @@ pub fn createTypeName(
3080	3080	const fn_info = sema.code.getFnInfo(ip.funcZirBodyInst(sema.func_index).resolve(ip) orelse return error.AnalysisFail);
3081	3081	const zir_tags = sema.code.instructions.items(.tag);
3082	3082
3083		var aw: std.io.Writer.Allocating = .init(gpa);
	3083	var aw: std.Io.Writer.Allocating = .init(gpa);
3084	3084	defer aw.deinit();
3085	3085	const w = &aw.writer;
3086	3086	w.print("{f}(", .{block.type_name_ctx.fmt(ip)}) catch return error.OutOfMemory;
...	...	@@ -5508,7 +5508,7 @@ fn zirCompileLog(
5508	5508	const zcu = pt.zcu;
5509	5509	const gpa = zcu.gpa;
5510	5510
5511		var aw: std.io.Writer.Allocating = .init(gpa);
	5511	var aw: std.Io.Writer.Allocating = .init(gpa);
5512	5512	defer aw.deinit();
5513	5513	const writer = &aw.writer;
5514	5514
...	...	@@ -9080,7 +9080,7 @@ fn callConvSupportsVarArgs(cc: std.builtin.CallingConvention.Tag) bool {
9080	9080	fn checkCallConvSupportsVarArgs(sema: Sema, block: Block, src: LazySrcLoc, cc: std.builtin.CallingConvention.Tag) CompileError!void {
9081	9081	const CallingConventionsSupportingVarArgsList = struct {
9082	9082	arch: std.Target.Cpu.Arch,
9083		pub fn format(ctx: @This(), w: *std.io.Writer) std.io.Writer.Error!void {
	9083	pub fn format(ctx: @This(), w: *std.Io.Writer) std.Io.Writer.Error!void {
9084	9084	var first = true;
9085	9085	for (calling_conventions_supporting_var_args) \|cc_inner\| {
9086	9086	for (std.Target.Cpu.Arch.fromCallingConvention(cc_inner)) \|supported_arch\| {
...	...	@@ -9521,7 +9521,7 @@ fn finishFunc(
9521	9521	.bad_arch => \|allowed_archs\| {
9522	9522	const ArchListFormatter = struct {
9523	9523	archs: []const std.Target.Cpu.Arch,
9524		pub fn format(formatter: @This(), w: *std.io.Writer) std.io.Writer.Error!void {
	9524	pub fn format(formatter: @This(), w: *std.Io.Writer) std.Io.Writer.Error!void {
9525	9525	for (formatter.archs, 0..) \|arch, i\| {
9526	9526	if (i != 0)
9527	9527	try w.writeAll(", ");
...	...	@@ -36962,7 +36962,7 @@ fn notePathToComptimeAllocPtr(
36962	36962	error.AnalysisFail => unreachable,
36963	36963	};
36964	36964
36965		var second_path_aw: std.io.Writer.Allocating = .init(arena);
	36965	var second_path_aw: std.Io.Writer.Allocating = .init(arena);
36966	36966	defer second_path_aw.deinit();
36967	36967	const inter_name = try std.fmt.allocPrint(arena, "v{d}", .{intermediate_value_count});
36968	36968	const deriv_start = @import("print_value.zig").printPtrDerivation(

src/Type.zig+4-4

...	...	@@ -121,7 +121,7 @@ pub fn eql(a: Type, b: Type, zcu: *const Zcu) bool {
121	121	return a.toIntern() == b.toIntern();
122	122	}
123	123
124		pub fn format(ty: Type, writer: *std.io.Writer) !void {
	124	pub fn format(ty: Type, writer: *std.Io.Writer) !void {
125	125	_ = ty;
126	126	_ = writer;
127	127	@compileError("do not format types directly; use either ty.fmtDebug() or ty.fmt()");
...	...	@@ -140,7 +140,7 @@ const Format = struct {
140	140	ty: Type,
141	141	pt: Zcu.PerThread,
142	142
143		fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	143	fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
144	144	return print(f.ty, writer, f.pt);
145	145	}
146	146	};
...	...	@@ -151,13 +151,13 @@ pub fn fmtDebug(ty: Type) std.fmt.Formatter(Type, dump) {
151	151
152	152	/// This is a debug function. In order to print types in a meaningful way
153	153	/// we also need access to the module.
154		pub fn dump(start_type: Type, writer: *std.io.Writer) std.io.Writer.Error!void {
	154	pub fn dump(start_type: Type, writer: *std.Io.Writer) std.Io.Writer.Error!void {
155	155	return writer.print("{any}", .{start_type.ip_index});
156	156	}
157	157
158	158	/// Prints a name suitable for `@typeName`.
159	159	/// TODO: take an `opt_sema` to pass to `fmtValue` when printing sentinels.
160		pub fn print(ty: Type, writer: *std.io.Writer, pt: Zcu.PerThread) std.io.Writer.Error!void {
	160	pub fn print(ty: Type, writer: *std.Io.Writer, pt: Zcu.PerThread) std.Io.Writer.Error!void {
161	161	const zcu = pt.zcu;
162	162	const ip = &zcu.intern_pool;
163	163	switch (ip.indexToKey(ty.toIntern())) {

src/Value.zig+2-2

...	...	@@ -15,7 +15,7 @@ const Value = @This();
15	15
16	16	ip_index: InternPool.Index,
17	17
18		pub fn format(val: Value, writer: *std.io.Writer) !void {
	18	pub fn format(val: Value, writer: *std.Io.Writer) !void {
19	19	_ = val;
20	20	_ = writer;
21	21	@compileError("do not use format values directly; use either fmtDebug or fmtValue");
...	...	@@ -23,7 +23,7 @@ pub fn format(val: Value, writer: *std.io.Writer) !void {
23	23
24	24	/// This is a debug function. In order to print values in a meaningful way
25	25	/// we also need access to the type.
26		pub fn dump(start_val: Value, w: std.io.Writer) std.io.Writer.Error!void {
	26	pub fn dump(start_val: Value, w: std.Io.Writer) std.Io.Writer.Error!void {
27	27	try w.print("(interned: {})", .{start_val.toIntern()});
28	28	}
29	29

src/Zcu.zig+5-5

...	...	@@ -15,7 +15,7 @@ const BigIntConst = std.math.big.int.Const;
15	15	const BigIntMutable = std.math.big.int.Mutable;
16	16	const Target = std.Target;
17	17	const Ast = std.zig.Ast;
18		const Writer = std.io.Writer;
	18	const Writer = std.Io.Writer;
19	19
20	20	const Zcu = @This();
21	21	const Compilation = @import("Compilation.zig");
...	...	@@ -2872,7 +2872,7 @@ pub fn loadZirCache(gpa: Allocator, cache_file: std.fs.File) !Zir {
2872	2872	};
2873	2873	}
2874	2874
2875		pub fn loadZirCacheBody(gpa: Allocator, header: Zir.Header, cache_br: *std.io.Reader) !Zir {
	2875	pub fn loadZirCacheBody(gpa: Allocator, header: Zir.Header, cache_br: *std.Io.Reader) !Zir {
2876	2876	var instructions: std.MultiArrayList(Zir.Inst) = .{};
2877	2877	errdefer instructions.deinit(gpa);
2878	2878
...	...	@@ -2989,7 +2989,7 @@ pub fn saveZoirCache(cache_file: std.fs.File, stat: std.fs.File.Stat, zoir: Zoir
2989	2989	};
2990	2990	}
2991	2991
2992		pub fn loadZoirCacheBody(gpa: Allocator, header: Zoir.Header, cache_br: *std.io.Reader) !Zoir {
	2992	pub fn loadZoirCacheBody(gpa: Allocator, header: Zoir.Header, cache_br: *std.Io.Reader) !Zoir {
2993	2993	var zoir: Zoir = .{
2994	2994	.nodes = .empty,
2995	2995	.extra = &.{},
...	...	@@ -4318,7 +4318,7 @@ const FormatAnalUnit = struct {
4318	4318	zcu: *Zcu,
4319	4319	};
4320	4320
4321		fn formatAnalUnit(data: FormatAnalUnit, writer: *std.io.Writer) std.io.Writer.Error!void {
	4321	fn formatAnalUnit(data: FormatAnalUnit, writer: *std.Io.Writer) std.Io.Writer.Error!void {
4322	4322	const zcu = data.zcu;
4323	4323	const ip = &zcu.intern_pool;
4324	4324	switch (data.unit.unwrap()) {
...	...	@@ -4344,7 +4344,7 @@ fn formatAnalUnit(data: FormatAnalUnit, writer: *std.io.Writer) std.io.Writer.Er
4344	4344
4345	4345	const FormatDependee = struct { dependee: InternPool.Dependee, zcu: *Zcu };
4346	4346
4347		fn formatDependee(data: FormatDependee, writer: *std.io.Writer) std.io.Writer.Error!void {
	4347	fn formatDependee(data: FormatDependee, writer: *std.Io.Writer) std.Io.Writer.Error!void {
4348	4348	const zcu = data.zcu;
4349	4349	const ip = &zcu.intern_pool;
4350	4350	switch (data.dependee) {

src/arch/riscv64/CodeGen.zig+5-5

...	...	@@ -566,7 +566,7 @@ const InstTracking = struct {
566	566	}
567	567	}
568	568
569		pub fn format(inst_tracking: InstTracking, writer: *std.io.Writer) std.io.Writer.Error!void {
	569	pub fn format(inst_tracking: InstTracking, writer: *std.Io.Writer) std.Io.Writer.Error!void {
570	570	if (!std.meta.eql(inst_tracking.long, inst_tracking.short)) try writer.print("\|{}\| ", .{inst_tracking.long});
571	571	try writer.print("{}", .{inst_tracking.short});
572	572	}
...	...	@@ -932,7 +932,7 @@ const FormatWipMirData = struct {
932	932	func: *Func,
933	933	inst: Mir.Inst.Index,
934	934	};
935		fn formatWipMir(data: FormatWipMirData, writer: *std.io.Writer) std.io.Writer.Error!void {
	935	fn formatWipMir(data: FormatWipMirData, writer: *std.Io.Writer) std.Io.Writer.Error!void {
936	936	const pt = data.func.pt;
937	937	const comp = pt.zcu.comp;
938	938	var lower: Lower = .{
...	...	@@ -980,7 +980,7 @@ const FormatNavData = struct {
980	980	ip: *const InternPool,
981	981	nav_index: InternPool.Nav.Index,
982	982	};
983		fn formatNav(data: FormatNavData, writer: *std.io.Writer) std.io.Writer.Error!void {
	983	fn formatNav(data: FormatNavData, writer: *std.Io.Writer) std.Io.Writer.Error!void {
984	984	try writer.print("{f}", .{data.ip.getNav(data.nav_index).fqn.fmt(data.ip)});
985	985	}
986	986	fn fmtNav(nav_index: InternPool.Nav.Index, ip: *const InternPool) std.fmt.Formatter(FormatNavData, formatNav) {
...	...	@@ -994,7 +994,7 @@ const FormatAirData = struct {
994	994	func: *Func,
995	995	inst: Air.Inst.Index,
996	996	};
997		fn formatAir(data: FormatAirData, writer: *std.io.Writer) std.io.Writer.Error!void {
	997	fn formatAir(data: FormatAirData, writer: *std.Io.Writer) std.Io.Writer.Error!void {
998	998	// Not acceptable implementation because it ignores `writer`:
999	999	//data.func.air.dumpInst(data.inst, data.func.pt, data.func.liveness);
1000	1000	_ = data;
...	...	@@ -1008,7 +1008,7 @@ fn fmtAir(func: *Func, inst: Air.Inst.Index) std.fmt.Formatter(FormatAirData, fo
1008	1008	const FormatTrackingData = struct {
1009	1009	func: *Func,
1010	1010	};
1011		fn formatTracking(data: FormatTrackingData, writer: *std.io.Writer) std.io.Writer.Error!void {
	1011	fn formatTracking(data: FormatTrackingData, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1012	1012	var it = data.func.inst_tracking.iterator();
1013	1013	while (it.next()) \|entry\| try writer.print("\n%{d} = {f}", .{ entry.key_ptr., entry.value_ptr. });
1014	1014	}

src/arch/riscv64/Mir.zig+1-1

...	...	@@ -92,7 +92,7 @@ pub const Inst = struct {
92	92	},
93	93	};
94	94
95		pub fn format(inst: Inst, writer: *std.io.Writer) std.io.Writer.Error!void {
	95	pub fn format(inst: Inst, writer: *std.Io.Writer) std.Io.Writer.Error!void {
96	96	try writer.print("Tag: {s}, Data: {s}", .{ @tagName(inst.tag), @tagName(inst.data) });
97	97	}
98	98	};

src/arch/x86_64/CodeGen.zig+2-2

...	...	@@ -6,7 +6,7 @@ const log = std.log.scoped(.codegen);
6	6	const tracking_log = std.log.scoped(.tracking);
7	7	const verbose_tracking_log = std.log.scoped(.verbose_tracking);
8	8	const wip_mir_log = std.log.scoped(.wip_mir);
9		const Writer = std.io.Writer;
	9	const Writer = std.Io.Writer;
10	10
11	11	const Air = @import("../../Air.zig");
12	12	const Allocator = std.mem.Allocator;
...	...	@@ -1102,7 +1102,7 @@ const FormatAirData = struct {
1102	1102	self: *CodeGen,
1103	1103	inst: Air.Inst.Index,
1104	1104	};
1105		fn formatAir(data: FormatAirData, w: *std.io.Writer) Writer.Error!void {
	1105	fn formatAir(data: FormatAirData, w: *Writer) Writer.Error!void {
1106	1106	data.self.air.writeInst(w, data.inst, data.self.pt, data.self.liveness);
1107	1107	}
1108	1108	fn fmtAir(self: *CodeGen, inst: Air.Inst.Index) std.fmt.Formatter(FormatAirData, formatAir) {

src/arch/x86_64/Disassembler.zig+9-11

...	...	@@ -287,13 +287,12 @@ const Prefixes = struct {
287	287
288	288	fn parsePrefixes(dis: *Disassembler) !Prefixes {
289	289	const rex_prefix_mask: u4 = 0b0100;
290		var stream = std.io.fixedBufferStream(dis.code[dis.pos..]);
291		const reader = stream.reader();
	290	var reader: std.Io.Reader = .fixed(dis.code[dis.pos..]);
292	291
293	292	var res: Prefixes = .{};
294	293
295	294	while (true) {
296		const next_byte = try reader.readByte();
	295	const next_byte = try reader.takeByte();
297	296	dis.pos += 1;
298	297
299	298	switch (next_byte) {
...	...	@@ -341,12 +340,11 @@ fn parseEncoding(dis: *Disassembler, prefixes: Prefixes) !?Encoding {
341	340	const o_mask: u8 = 0b1111_1000;
342	341
343	342	var opcode: [3]u8 = .{ 0, 0, 0 };
344		var stream = std.io.fixedBufferStream(dis.code[dis.pos..]);
345		const reader = stream.reader();
	343	var reader: std.Io.Reader = .fixed(dis.code[dis.pos..]);
346	344
347	345	comptime var opc_count = 0;
348	346	inline while (opc_count < 3) : (opc_count += 1) {
349		const byte = try reader.readByte();
	347	const byte = try reader.takeByte();
350	348	opcode[opc_count] = byte;
351	349	dis.pos += 1;
352	350
...	...	@@ -410,11 +408,11 @@ fn parseImm(dis: *Disassembler, kind: Encoding.Op) !Immediate {
410	408	}
411	409
412	410	fn parseOffset(dis: *Disassembler) !u64 {
413		var stream = std.io.fixedBufferStream(dis.code[dis.pos..]);
414		const reader = stream.reader();
415		const offset = try reader.readInt(u64, .little);
416		dis.pos += 8;
417		return offset;
	411	var reader: std.Io.Reader = .fixed(dis.code);
	412	reader.seek = dis.pos;
	413	defer dis.pos = reader.seek;
	414
	415	return reader.takeInt(u64, .little);
418	416	}
419	417
420	418	const ModRm = packed struct {

src/arch/x86_64/Emit.zig+1-1

...	...	@@ -698,7 +698,7 @@ fn encodeInst(emit: *Emit, lowered_inst: Instruction, reloc_info: []const RelocI
698	698	const gpa = comp.gpa;
699	699	const start_offset: u32 = @intCast(emit.code.items.len);
700	700	{
701		var aw: std.io.Writer.Allocating = .fromArrayList(gpa, emit.code);
	701	var aw: std.Io.Writer.Allocating = .fromArrayList(gpa, emit.code);
702	702	defer emit.code.* = aw.toArrayList();
703	703	lowered_inst.encode(&aw.writer, .{}) catch \|err\| switch (err) {
704	704	error.WriteFailed => return error.OutOfMemory,

src/arch/x86_64/Encoding.zig+2-2

...	...	@@ -158,7 +158,7 @@ pub fn modRmExt(encoding: Encoding) u3 {
158	158	};
159	159	}
160	160
161		pub fn format(encoding: Encoding, writer: *std.io.Writer) std.io.Writer.Error!void {
	161	pub fn format(encoding: Encoding, writer: *std.Io.Writer) std.Io.Writer.Error!void {
162	162	var opc = encoding.opcode();
163	163	if (encoding.data.mode.isVex()) {
164	164	try writer.writeAll("VEX.");
...	...	@@ -1016,7 +1016,7 @@ fn estimateInstructionLength(prefix: Prefix, encoding: Encoding, ops: []const Op
1016	1016	// By using a buffer with maximum length of encoded instruction, we can use
1017	1017	// the `end` field of the Writer for the count.
1018	1018	var buf: [16]u8 = undefined;
1019		var trash: std.io.Writer.Discarding = .init(&buf);
	1019	var trash: std.Io.Writer.Discarding = .init(&buf);
1020	1020	inst.encode(&trash.writer, .{
1021	1021	.allow_frame_locs = true,
1022	1022	.allow_symbols = true,

src/arch/x86_64/bits.zig+2-2

...	...	@@ -827,7 +827,7 @@ pub const Memory = struct {
827	827	};
828	828	}
829	829
830		pub fn format(s: Size, writer: *std.io.Writer) std.io.Writer.Error!void {
	830	pub fn format(s: Size, writer: *std.Io.Writer) std.Io.Writer.Error!void {
831	831	if (s == .none) return;
832	832	try writer.writeAll(@tagName(s));
833	833	switch (s) {
...	...	@@ -892,7 +892,7 @@ pub const Immediate = union(enum) {
892	892	return .{ .signed = x };
893	893	}
894	894
895		pub fn format(imm: Immediate, writer: *std.io.Writer) std.io.Writer.Error!void {
	895	pub fn format(imm: Immediate, writer: *std.Io.Writer) std.Io.Writer.Error!void {
896	896	switch (imm) {
897	897	inline else => \|int\| try writer.print("{d}", .{int}),
898	898	.nav => \|nav_off\| try writer.print("Nav({d}) + {d}", .{ @intFromEnum(nav_off.nav), nav_off.off }),

src/arch/x86_64/encoder.zig+1-1

...	...	@@ -3,7 +3,7 @@ const assert = std.debug.assert;
3	3	const log = std.log.scoped(.x86_64_encoder);
4	4	const math = std.math;
5	5	const testing = std.testing;
6		const Writer = std.io.Writer;
	6	const Writer = std.Io.Writer;
7	7
8	8	const bits = @import("bits.zig");
9	9	const Encoding = @import("Encoding.zig");

src/codegen/c.zig+10-10

...	...	@@ -4,7 +4,7 @@ const assert = std.debug.assert;
4	4	const mem = std.mem;
5	5	const log = std.log.scoped(.c);
6	6	const Allocator = mem.Allocator;
7		const Writer = std.io.Writer;
	7	const Writer = std.Io.Writer;
8	8
9	9	const dev = @import("../dev.zig");
10	10	const link = @import("../link.zig");
...	...	@@ -345,15 +345,15 @@ fn isReservedIdent(ident: []const u8) bool {
345	345	} else return reserved_idents.has(ident);
346	346	}
347	347
348		fn formatIdentSolo(ident: []const u8, w: *std.io.Writer) std.io.Writer.Error!void {
	348	fn formatIdentSolo(ident: []const u8, w: *Writer) Writer.Error!void {
349	349	return formatIdentOptions(ident, w, true);
350	350	}
351	351
352		fn formatIdentUnsolo(ident: []const u8, w: *std.io.Writer) std.io.Writer.Error!void {
	352	fn formatIdentUnsolo(ident: []const u8, w: *Writer) Writer.Error!void {
353	353	return formatIdentOptions(ident, w, false);
354	354	}
355	355
356		fn formatIdentOptions(ident: []const u8, w: *std.io.Writer, solo: bool) std.io.Writer.Error!void {
	356	fn formatIdentOptions(ident: []const u8, w: *Writer, solo: bool) Writer.Error!void {
357	357	if (solo and isReservedIdent(ident)) {
358	358	try w.writeAll("zig_e_");
359	359	}
...	...	@@ -384,7 +384,7 @@ const CTypePoolStringFormatData = struct {
384	384	ctype_pool: *const CType.Pool,
385	385	solo: bool,
386	386	};
387		fn formatCTypePoolString(data: CTypePoolStringFormatData, w: *std.io.Writer) std.io.Writer.Error!void {
	387	fn formatCTypePoolString(data: CTypePoolStringFormatData, w: *Writer) Writer.Error!void {
388	388	if (data.ctype_pool_string.toSlice(data.ctype_pool)) \|slice\|
389	389	try formatIdentOptions(slice, w, data.solo)
390	390	else
...	...	@@ -711,8 +711,8 @@ pub const Function = struct {
711	711	/// It is not available when generating .h file.
712	712	pub const Object = struct {
713	713	dg: DeclGen,
714		code_header: std.io.Writer.Allocating,
715		code: std.io.Writer.Allocating,
	714	code_header: Writer.Allocating,
	715	code: Writer.Allocating,
716	716	indent_counter: usize,
717	717
718	718	const indent_width = 1;
...	...	@@ -748,7 +748,7 @@ pub const DeclGen = struct {
748	748	pass: Pass,
749	749	is_naked_fn: bool,
750	750	expected_block: ?u32,
751		fwd_decl: std.io.Writer.Allocating,
	751	fwd_decl: Writer.Allocating,
752	752	error_msg: ?*Zcu.ErrorMsg,
753	753	ctype_pool: CType.Pool,
754	754	scratch: std.ArrayListUnmanaged(u32),
...	...	@@ -8287,7 +8287,7 @@ const FormatStringContext = struct {
8287	8287	sentinel: ?u8,
8288	8288	};
8289	8289
8290		fn formatStringLiteral(data: FormatStringContext, w: *std.io.Writer) std.io.Writer.Error!void {
	8290	fn formatStringLiteral(data: FormatStringContext, w: *Writer) Writer.Error!void {
8291	8291	var literal: StringLiteral = .init(w, data.str.len + @intFromBool(data.sentinel != null));
8292	8292	try literal.start();
8293	8293	for (data.str) \|c\| try literal.writeChar(c);
...	...	@@ -8314,7 +8314,7 @@ const FormatIntLiteralContext = struct {
8314	8314	base: u8,
8315	8315	case: std.fmt.Case,
8316	8316	};
8317		fn formatIntLiteral(data: FormatIntLiteralContext, w: *std.io.Writer) std.io.Writer.Error!void {
	8317	fn formatIntLiteral(data: FormatIntLiteralContext, w: *Writer) Writer.Error!void {
8318	8318	const pt = data.dg.pt;
8319	8319	const zcu = pt.zcu;
8320	8320	const target = &data.dg.mod.resolved_target.result;

src/codegen/c/Type.zig+1-1

...	...	@@ -3396,7 +3396,7 @@ pub const AlignAs = packed struct {
3396	3396
3397	3397	const std = @import("std");
3398	3398	const assert = std.debug.assert;
3399		const Writer = std.io.Writer;
	3399	const Writer = std.Io.Writer;
3400	3400
3401	3401	const CType = @This();
3402	3402	const InternPool = @import("../../InternPool.zig");

src/codegen/llvm.zig+1-1

...	...	@@ -2684,7 +2684,7 @@ pub const Object = struct {
2684	2684	}
2685	2685
2686	2686	fn allocTypeName(o: *Object, pt: Zcu.PerThread, ty: Type) Allocator.Error![:0]const u8 {
2687		var aw: std.io.Writer.Allocating = .init(o.gpa);
	2687	var aw: std.Io.Writer.Allocating = .init(o.gpa);
2688	2688	defer aw.deinit();
2689	2689	ty.print(&aw.writer, pt) catch \|err\| switch (err) {
2690	2690	error.WriteFailed => return error.OutOfMemory,

src/codegen/spirv/CodeGen.zig+1-1

...	...	@@ -1211,7 +1211,7 @@ fn constantNavRef(cg: *CodeGen, ty: Type, nav_index: InternPool.Nav.Index) !Id {
1211	1211	// Turn a Zig type's name into a cache reference.
1212	1212	fn resolveTypeName(cg: *CodeGen, ty: Type) ![]const u8 {
1213	1213	const gpa = cg.module.gpa;
1214		var aw: std.io.Writer.Allocating = .init(gpa);
	1214	var aw: std.Io.Writer.Allocating = .init(gpa);
1215	1215	defer aw.deinit();
1216	1216	ty.print(&aw.writer, cg.pt) catch \|err\| switch (err) {
1217	1217	error.WriteFailed => return error.OutOfMemory,

src/codegen/spirv/spec.zig+1-1

...	...	@@ -18,7 +18,7 @@ pub const Id = enum(Word) {
18	18	none,
19	19	_,
20	20
21		pub fn format(self: Id, writer: *std.io.Writer) std.io.Writer.Error!void {
	21	pub fn format(self: Id, writer: *std.Io.Writer) std.Io.Writer.Error!void {
22	22	switch (self) {
23	23	.none => try writer.writeAll("(none)"),
24	24	else => try writer.print("%{d}", .{@intFromEnum(self)}),

src/crash_report.zig-1

...	...	@@ -2,7 +2,6 @@ const std = @import("std");
2	2	const builtin = @import("builtin");
3	3	const build_options = @import("build_options");
4	4	const debug = std.debug;
5		const io = std.io;
6	5	const print_zir = @import("print_zir.zig");
7	6	const windows = std.os.windows;
8	7	const posix = std.posix;

src/libs/mingw.zig+1-1

...	...	@@ -325,7 +325,7 @@ pub fn buildImportLib(comp: *Compilation, lib_name: []const u8) !void {
325	325
326	326	for (aro_comp.diagnostics.list.items) \|diagnostic\| {
327	327	if (diagnostic.kind == .@"fatal error" or diagnostic.kind == .@"error") {
328		aro.Diagnostics.render(&aro_comp, std.io.tty.detectConfig(std.fs.File.stderr()));
	328	aro.Diagnostics.render(&aro_comp, std.Io.tty.detectConfig(std.fs.File.stderr()));
329	329	return error.AroPreprocessorFailed;
330	330	}
331	331	}

src/link/C.zig+4-4

...	...	@@ -348,7 +348,7 @@ pub fn updateLineNumber(self: *C, pt: Zcu.PerThread, ti_id: InternPool.TrackedIn
348	348	_ = ti_id;
349	349	}
350	350
351		fn abiDefines(w: std.io.Writer, target: const std.Target) !void {
	351	fn abiDefines(w: std.Io.Writer, target: const std.Target) !void {
352	352	switch (target.abi) {
353	353	.msvc, .itanium => try w.writeAll("#define ZIG_TARGET_ABI_MSVC\n"),
354	354	else => {},
...	...	@@ -400,7 +400,7 @@ pub fn flush(self: *C, arena: Allocator, tid: Zcu.PerThread.Id, prog_node: std.P
400	400	};
401	401	defer f.deinit(gpa);
402	402
403		var abi_defines_aw: std.io.Writer.Allocating = .init(gpa);
	403	var abi_defines_aw: std.Io.Writer.Allocating = .init(gpa);
404	404	defer abi_defines_aw.deinit();
405	405	abiDefines(&abi_defines_aw.writer, zcu.getTarget()) catch \|err\| switch (err) {
406	406	error.WriteFailed => return error.OutOfMemory,
...	...	@@ -415,7 +415,7 @@ pub fn flush(self: *C, arena: Allocator, tid: Zcu.PerThread.Id, prog_node: std.P
415	415	const ctypes_index = f.all_buffers.items.len;
416	416	f.all_buffers.items.len += 1;
417	417
418		var asm_aw: std.io.Writer.Allocating = .init(gpa);
	418	var asm_aw: std.Io.Writer.Allocating = .init(gpa);
419	419	defer asm_aw.deinit();
420	420	codegen.genGlobalAsm(zcu, &asm_aw.writer) catch \|err\| switch (err) {
421	421	error.WriteFailed => return error.OutOfMemory,
...	...	@@ -582,7 +582,7 @@ fn flushCTypes(
582	582	try global_from_decl_map.ensureTotalCapacity(gpa, decl_ctype_pool.items.len);
583	583	defer global_from_decl_map.clearRetainingCapacity();
584	584
585		var ctypes_aw: std.io.Writer.Allocating = .fromArrayList(gpa, &f.ctypes);
	585	var ctypes_aw: std.Io.Writer.Allocating = .fromArrayList(gpa, &f.ctypes);
586	586	const ctypes_bw = &ctypes_aw.writer;
587	587	defer f.ctypes = ctypes_aw.toArrayList();
588	588

src/link/Coff.zig+1-1

...	...	@@ -3039,7 +3039,7 @@ const ImportTable = struct {
3039	3039	itab: ImportTable,
3040	3040	ctx: Context,
3041	3041
3042		fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	3042	fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
3043	3043	const lib_name = f.ctx.coff.temp_strtab.getAssumeExists(f.ctx.name_off);
3044	3044	const base_vaddr = getBaseAddress(f.ctx);
3045	3045	try writer.print("IAT({s}.dll) @{x}:", .{ lib_name, base_vaddr });

src/link/Elf.zig+5-5

...	...	@@ -3869,7 +3869,7 @@ fn fmtShdr(self: *Elf, shdr: elf.Elf64_Shdr) std.fmt.Formatter(FormatShdr, forma
3869	3869	} };
3870	3870	}
3871	3871
3872		fn formatShdr(ctx: FormatShdr, writer: *std.io.Writer) std.io.Writer.Error!void {
	3872	fn formatShdr(ctx: FormatShdr, writer: *std.Io.Writer) std.Io.Writer.Error!void {
3873	3873	const shdr = ctx.shdr;
3874	3874	try writer.print("{s} : @{x} ({x}) : align({x}) : size({x}) : entsize({x}) : flags({f})", .{
3875	3875	ctx.elf_file.getShString(shdr.sh_name), shdr.sh_offset,
...	...	@@ -3883,7 +3883,7 @@ pub fn fmtShdrFlags(sh_flags: u64) std.fmt.Formatter(u64, formatShdrFlags) {
3883	3883	return .{ .data = sh_flags };
3884	3884	}
3885	3885
3886		fn formatShdrFlags(sh_flags: u64, writer: *std.io.Writer) std.io.Writer.Error!void {
	3886	fn formatShdrFlags(sh_flags: u64, writer: *std.Io.Writer) std.Io.Writer.Error!void {
3887	3887	if (elf.SHF_WRITE & sh_flags != 0) {
3888	3888	try writer.writeAll("W");
3889	3889	}
...	...	@@ -3940,7 +3940,7 @@ fn fmtPhdr(self: *Elf, phdr: elf.Elf64_Phdr) std.fmt.Formatter(FormatPhdr, forma
3940	3940	} };
3941	3941	}
3942	3942
3943		fn formatPhdr(ctx: FormatPhdr, writer: *std.io.Writer) std.io.Writer.Error!void {
	3943	fn formatPhdr(ctx: FormatPhdr, writer: *std.Io.Writer) std.Io.Writer.Error!void {
3944	3944	const phdr = ctx.phdr;
3945	3945	const write = phdr.p_flags & elf.PF_W != 0;
3946	3946	const read = phdr.p_flags & elf.PF_R != 0;
...	...	@@ -3971,7 +3971,7 @@ pub fn dumpState(self: Elf) std.fmt.Formatter(Elf, fmtDumpState) {
3971	3971	return .{ .data = self };
3972	3972	}
3973	3973
3974		fn fmtDumpState(self: Elf, writer: std.io.Writer) std.io.Writer.Error!void {
	3974	fn fmtDumpState(self: Elf, writer: std.Io.Writer) std.Io.Writer.Error!void {
3975	3975	const shared_objects = self.shared_objects.values();
3976	3976
3977	3977	if (self.zigObjectPtr()) \|zig_object\| {
...	...	@@ -4189,7 +4189,7 @@ pub const Ref = struct {
4189	4189	return ref.index == other.index and ref.file == other.file;
4190	4190	}
4191	4191
4192		pub fn format(ref: Ref, writer: *std.io.Writer) std.io.Writer.Error!void {
	4192	pub fn format(ref: Ref, writer: *std.Io.Writer) std.Io.Writer.Error!void {
4193	4193	try writer.print("ref({d},{d})", .{ ref.index, ref.file });
4194	4194	}
4195	4195	};

src/link/Elf/Archive.zig+2-2

...	...	@@ -204,7 +204,7 @@ pub const ArSymtab = struct {
204	204	ar: ArSymtab,
205	205	elf_file: *Elf,
206	206
207		fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	207	fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
208	208	const ar = f.ar;
209	209	const elf_file = f.elf_file;
210	210	for (ar.symtab.items, 0..) \|entry, i\| {
...	...	@@ -259,7 +259,7 @@ pub const ArStrtab = struct {
259	259	try writer.writeAll(ar.buffer.items);
260	260	}
261	261
262		pub fn format(ar: ArStrtab, writer: *std.io.Writer) std.io.Writer.Error!void {
	262	pub fn format(ar: ArStrtab, writer: *std.Io.Writer) std.Io.Writer.Error!void {
263	263	try writer.print("{f}", .{std.ascii.hexEscape(ar.buffer.items, .lower)});
264	264	}
265	265	};

src/link/Elf/AtomList.zig+1-1

...	...	@@ -170,7 +170,7 @@ const Format = struct {
170	170	atom_list: AtomList,
171	171	elf_file: *Elf,
172	172
173		fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	173	fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
174	174	const list = f.atom_list;
175	175	try writer.print("list : @{x} : shdr({d}) : align({x}) : size({x})", .{
176	176	list.address(f.elf_file),

src/link/Elf/LinkerDefined.zig+1-1

...	...	@@ -448,7 +448,7 @@ const Format = struct {
448	448	self: *LinkerDefined,
449	449	elf_file: *Elf,
450	450
451		fn symtab(ctx: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	451	fn symtab(ctx: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
452	452	const self = ctx.self;
453	453	const elf_file = ctx.elf_file;
454	454	try writer.writeAll(" globals\n");

src/link/Elf/Merge.zig+2-2

...	...	@@ -168,7 +168,7 @@ pub const Section = struct {
168	168	msec: Section,
169	169	elf_file: *Elf,
170	170
171		pub fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	171	pub fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
172	172	const msec = f.msec;
173	173	const elf_file = f.elf_file;
174	174	try writer.print("{s} : @{x} : size({x}) : align({x}) : entsize({x}) : type({x}) : flags({x})\n", .{
...	...	@@ -222,7 +222,7 @@ pub const Subsection = struct {
222	222	msub: Subsection,
223	223	elf_file: *Elf,
224	224
225		pub fn default(ctx: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	225	pub fn default(ctx: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
226	226	const msub = ctx.msub;
227	227	const elf_file = ctx.elf_file;
228	228	try writer.print("@{x} : align({x}) : size({x})", .{

src/link/Elf/Object.zig+6-6

...	...	@@ -1442,7 +1442,7 @@ const Format = struct {
1442	1442	object: *Object,
1443	1443	elf_file: *Elf,
1444	1444
1445		fn symtab(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	1445	fn symtab(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1446	1446	const object = f.object;
1447	1447	const elf_file = f.elf_file;
1448	1448	try writer.writeAll(" locals\n");
...	...	@@ -1461,7 +1461,7 @@ const Format = struct {
1461	1461	}
1462	1462	}
1463	1463
1464		fn atoms(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	1464	fn atoms(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1465	1465	const object = f.object;
1466	1466	try writer.writeAll(" atoms\n");
1467	1467	for (object.atoms_indexes.items) \|atom_index\| {
...	...	@@ -1470,7 +1470,7 @@ const Format = struct {
1470	1470	}
1471	1471	}
1472	1472
1473		fn cies(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	1473	fn cies(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1474	1474	const object = f.object;
1475	1475	try writer.writeAll(" cies\n");
1476	1476	for (object.cies.items, 0..) \|cie, i\| {
...	...	@@ -1478,7 +1478,7 @@ const Format = struct {
1478	1478	}
1479	1479	}
1480	1480
1481		fn fdes(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	1481	fn fdes(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1482	1482	const object = f.object;
1483	1483	try writer.writeAll(" fdes\n");
1484	1484	for (object.fdes.items, 0..) \|fde, i\| {
...	...	@@ -1486,7 +1486,7 @@ const Format = struct {
1486	1486	}
1487	1487	}
1488	1488
1489		fn groups(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	1489	fn groups(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1490	1490	const object = f.object;
1491	1491	const elf_file = f.elf_file;
1492	1492	try writer.writeAll(" groups\n");
...	...	@@ -1536,7 +1536,7 @@ pub fn fmtPath(self: Object) std.fmt.Formatter(Object, formatPath) {
1536	1536	return .{ .data = self };
1537	1537	}
1538	1538
1539		fn formatPath(object: Object, writer: *std.io.Writer) std.io.Writer.Error!void {
	1539	fn formatPath(object: Object, writer: *std.Io.Writer) std.Io.Writer.Error!void {
1540	1540	if (object.archive) \|ar\| {
1541	1541	try writer.print("{f}({f})", .{ ar.path, object.path });
1542	1542	} else {

src/link/Elf/SharedObject.zig+1-1

...	...	@@ -520,7 +520,7 @@ const Format = struct {
520	520	shared: SharedObject,
521	521	elf_file: *Elf,
522	522
523		fn symtab(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	523	fn symtab(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
524	524	const shared = f.shared;
525	525	const elf_file = f.elf_file;
526	526	try writer.writeAll(" globals\n");

src/link/Elf/Symbol.zig+2-2

...	...	@@ -320,7 +320,7 @@ const Format = struct {
320	320	symbol: Symbol,
321	321	elf_file: *Elf,
322	322
323		fn name(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	323	fn name(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
324	324	const elf_file = f.elf_file;
325	325	const symbol = f.symbol;
326	326	try writer.writeAll(symbol.name(elf_file));
...	...	@@ -335,7 +335,7 @@ const Format = struct {
335	335	}
336	336	}
337	337
338		fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	338	fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
339	339	const symbol = f.symbol;
340	340	const elf_file = f.elf_file;
341	341	try writer.print("%{d} : {f} : @{x}", .{

src/link/Elf/Thunk.zig+1-1

...	...	@@ -76,7 +76,7 @@ const Format = struct {
76	76	thunk: Thunk,
77	77	elf_file: *Elf,
78	78
79		fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	79	fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
80	80	const thunk = f.thunk;
81	81	const elf_file = f.elf_file;
82	82	try writer.print("@{x} : size({x})\n", .{ thunk.value, thunk.size(elf_file) });

src/link/Elf/ZigObject.zig+2-2

...	...	@@ -2201,7 +2201,7 @@ const Format = struct {
2201	2201	self: *ZigObject,
2202	2202	elf_file: *Elf,
2203	2203
2204		fn symtab(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	2204	fn symtab(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
2205	2205	const self = f.self;
2206	2206	const elf_file = f.elf_file;
2207	2207	try writer.writeAll(" locals\n");
...	...	@@ -2216,7 +2216,7 @@ const Format = struct {
2216	2216	}
2217	2217	}
2218	2218
2219		fn atoms(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	2219	fn atoms(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
2220	2220	try writer.writeAll(" atoms\n");
2221	2221	for (f.self.atoms_indexes.items) \|atom_index\| {
2222	2222	const atom_ptr = f.self.atom(atom_index) orelse continue;

src/link/Elf/eh_frame.zig+6-7

...	...	@@ -58,7 +58,7 @@ pub const Fde = struct {
58	58	fde: Fde,
59	59	elf_file: *Elf,
60	60
61		fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	61	fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
62	62	const fde = f.fde;
63	63	const elf_file = f.elf_file;
64	64	const base_addr = fde.address(elf_file);
...	...	@@ -141,7 +141,7 @@ pub const Cie = struct {
141	141	cie: Cie,
142	142	elf_file: *Elf,
143	143
144		fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	144	fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
145	145	const cie = f.cie;
146	146	const elf_file = f.elf_file;
147	147	const base_addr = cie.address(elf_file);
...	...	@@ -167,15 +167,14 @@ pub const Iterator = struct {
167	167	pub fn next(it: *Iterator) !?Record {
168	168	if (it.pos >= it.data.len) return null;
169	169
170		var stream = std.io.fixedBufferStream(it.data[it.pos..]);
171		const reader = stream.reader();
	170	var reader: std.Io.Reader = .fixed(it.data[it.pos..]);
172	171
173		const size = try reader.readInt(u32, .little);
	172	const size = try reader.takeInt(u32, .little);
174	173	if (size == 0) return null;
175	174	if (size == 0xFFFFFFFF) @panic("TODO");
176	175
177		const id = try reader.readInt(u32, .little);
178		const record = Record{
	176	const id = try reader.takeInt(u32, .little);
	177	const record: Record = .{
179	178	.tag = if (id == 0) .cie else .fde,
180	179	.offset = it.pos,
181	180	.size = size,

src/link/Elf/file.zig+1-1

...	...	@@ -14,7 +14,7 @@ pub const File = union(enum) {
14	14	return .{ .data = file };
15	15	}
16	16
17		fn formatPath(file: File, writer: *std.io.Writer) std.io.Writer.Error!void {
	17	fn formatPath(file: File, writer: *std.Io.Writer) std.Io.Writer.Error!void {
18	18	switch (file) {
19	19	.zig_object => \|zo\| try writer.writeAll(zo.basename),
20	20	.linker_defined => try writer.writeAll("(linker defined)"),

src/link/Elf/gc.zig+1-1

...	...	@@ -169,7 +169,7 @@ const Level = struct {
169	169	self.value += 1;
170	170	}
171	171
172		pub fn format(self: const @This(), w: std.io.Writer) std.io.Writer.Error!void {
	172	pub fn format(self: const @This(), w: std.Io.Writer) std.Io.Writer.Error!void {
173	173	try w.splatByteAll(' ', self.value);
174	174	}
175	175	};

src/link/Elf/relocation.zig+1-1

...	...	@@ -160,7 +160,7 @@ pub fn fmtRelocType(r_type: u32, cpu_arch: std.Target.Cpu.Arch) std.fmt.Formatte
160	160	} };
161	161	}
162	162
163		fn formatRelocType(ctx: FormatRelocTypeCtx, writer: *std.io.Writer) std.io.Writer.Error!void {
	163	fn formatRelocType(ctx: FormatRelocTypeCtx, writer: *std.Io.Writer) std.Io.Writer.Error!void {
164	164	const r_type = ctx.r_type;
165	165	switch (ctx.cpu_arch) {
166	166	.x86_64 => try writer.print("R_X86_64_{s}", .{@tagName(@as(elf.R_X86_64, @enumFromInt(r_type)))}),

src/link/Elf/synthetic_sections.zig+2-2

...	...	@@ -605,7 +605,7 @@ pub const GotSection = struct {
605	605	got: GotSection,
606	606	elf_file: *Elf,
607	607
608		pub fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	608	pub fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
609	609	const got = f.got;
610	610	const elf_file = f.elf_file;
611	611	try writer.writeAll("GOT\n");
...	...	@@ -741,7 +741,7 @@ pub const PltSection = struct {
741	741	plt: PltSection,
742	742	elf_file: *Elf,
743	743
744		pub fn default(f: Format, writer: *std.io.Writer) std.io.Writer.Error!void {
	744	pub fn default(f: Format, writer: *std.Io.Writer) std.Io.Writer.Error!void {
745	745	const plt = f.plt;
746	746	const elf_file = f.elf_file;
747	747	try writer.writeAll("PLT\n");

src/link/Lld.zig+4-2

...	...	@@ -1650,7 +1650,8 @@ fn spawnLld(
1650	1650	child.stderr_behavior = .Pipe;
1651	1651
1652	1652	child.spawn() catch \|err\| break :term err;
1653		stderr = try child.stderr.?.deprecatedReader().readAllAlloc(comp.gpa, std.math.maxInt(usize));
	1653	var stderr_reader = child.stderr.?.readerStreaming(&.{});
	1654	stderr = try stderr_reader.interface.allocRemaining(comp.gpa, .unlimited);
1654	1655	break :term child.wait();
1655	1656	}) catch \|first_err\| term: {
1656	1657	const err = switch (first_err) {
...	...	@@ -1699,7 +1700,8 @@ fn spawnLld(
1699	1700	rsp_child.stderr_behavior = .Pipe;
1700	1701
1701	1702	rsp_child.spawn() catch \|err\| break :err err;
1702		stderr = try rsp_child.stderr.?.deprecatedReader().readAllAlloc(comp.gpa, std.math.maxInt(usize));
	1703	var stderr_reader = rsp_child.stderr.?.readerStreaming(&.{});
	1704	stderr = try stderr_reader.interface.allocRemaining(comp.gpa, .unlimited);
1703	1705	break :term rsp_child.wait() catch \|err\| break :err err;
1704	1706	}
1705	1707	},

src/link/MachO.zig+1-1

...	...	@@ -4361,7 +4361,7 @@ fn inferSdkVersion(comp: *Compilation, sdk_layout: SdkLayout) ?std.SemanticVersi
4361	4361	// The file/property is also available with vendored libc.
4362	4362	fn readSdkVersionFromSettings(arena: Allocator, dir: []const u8) ![]const u8 {
4363	4363	const sdk_path = try fs.path.join(arena, &.{ dir, "SDKSettings.json" });
4364		const contents = try fs.cwd().readFileAlloc(arena, sdk_path, std.math.maxInt(u16));
	4364	const contents = try fs.cwd().readFileAlloc(sdk_path, arena, .limited(std.math.maxInt(u16)));
4365	4365	const parsed = try std.json.parseFromSlice(std.json.Value, arena, contents, .{});
4366	4366	if (parsed.value.object.get("MinimalDisplayName")) \|ver\| return ver.string;
4367	4367	return error.SdkVersionFailure;

src/link/MachO/CodeSignature.zig+1-3

...	...	@@ -245,9 +245,7 @@ pub fn deinit(self: *CodeSignature, allocator: Allocator) void {
245	245	}
246	246
247	247	pub fn addEntitlements(self: *CodeSignature, allocator: Allocator, path: []const u8) !void {
248		const file = try fs.cwd().openFile(path, .{});
249		defer file.close();
250		const inner = try file.readToEndAlloc(allocator, std.math.maxInt(u32));
	248	const inner = try fs.cwd().readFileAlloc(path, allocator, .limited(std.math.maxInt(u32)));
251	249	self.entitlements = .{ .inner = inner };
252	250	}
253	251

src/link/MachO/Dylib.zig+1-1

...	...	@@ -914,7 +914,7 @@ const math = std.math;
914	914	const mem = std.mem;
915	915	const Allocator = mem.Allocator;
916	916	const Path = std.Build.Cache.Path;
917		const Writer = std.io.Writer;
	917	const Writer = std.Io.Writer;
918	918
919	919	const Dylib = @This();
920	920	const File = @import("file.zig").File;

src/link/MachO/InternalObject.zig+1-1

...	...	@@ -894,7 +894,7 @@ const macho = std.macho;
894	894	const mem = std.mem;
895	895	const std = @import("std");
896	896	const trace = @import("../../tracy.zig").trace;
897		const Writer = std.io.Writer;
	897	const Writer = std.Io.Writer;
898	898
899	899	const Allocator = std.mem.Allocator;
900	900	const Atom = @import("Atom.zig");

src/link/MachO/Object.zig+1-1

...	...	@@ -3094,7 +3094,7 @@ const math = std.math;
3094	3094	const mem = std.mem;
3095	3095	const Path = std.Build.Cache.Path;
3096	3096	const Allocator = std.mem.Allocator;
3097		const Writer = std.io.Writer;
	3097	const Writer = std.Io.Writer;
3098	3098
3099	3099	const eh_frame = @import("eh_frame.zig");
3100	3100	const trace = @import("../../tracy.zig").trace;

src/link/MachO/Relocation.zig+1-1

...	...	@@ -162,7 +162,7 @@ const std = @import("std");
162	162	const assert = std.debug.assert;
163	163	const macho = std.macho;
164	164	const math = std.math;
165		const Writer = std.io.Writer;
	165	const Writer = std.Io.Writer;
166	166
167	167	const Atom = @import("Atom.zig");
168	168	const MachO = @import("../MachO.zig");

src/link/MachO/Symbol.zig+1-1

...	...	@@ -417,7 +417,7 @@ pub const Index = u32;
417	417	const assert = std.debug.assert;
418	418	const macho = std.macho;
419	419	const std = @import("std");
420		const Writer = std.io.Writer;
	420	const Writer = std.Io.Writer;
421	421
422	422	const Atom = @import("Atom.zig");
423	423	const File = @import("file.zig").File;

src/link/MachO/Thunk.zig+1-1

...	...	@@ -97,7 +97,7 @@ const math = std.math;
97	97	const mem = std.mem;
98	98	const std = @import("std");
99	99	const trace = @import("../../tracy.zig").trace;
100		const Writer = std.io.Writer;
	100	const Writer = std.Io.Writer;
101	101
102	102	const Allocator = mem.Allocator;
103	103	const Atom = @import("Atom.zig");

src/link/MachO/ZigObject.zig+1-1

...	...	@@ -1785,7 +1785,7 @@ const mem = std.mem;
1785	1785	const target_util = @import("../../target.zig");
1786	1786	const trace = @import("../../tracy.zig").trace;
1787	1787	const std = @import("std");
1788		const Writer = std.io.Writer;
	1788	const Writer = std.Io.Writer;
1789	1789
1790	1790	const Allocator = std.mem.Allocator;
1791	1791	const Archive = @import("Archive.zig");

src/link/MachO/dead_strip.zig+1-1

...	...	@@ -212,7 +212,7 @@ const mem = std.mem;
212	212	const trace = @import("../../tracy.zig").trace;
213	213	const track_live_log = std.log.scoped(.dead_strip_track_live);
214	214	const std = @import("std");
215		const Writer = std.io.Writer;
	215	const Writer = std.Io.Writer;
216	216
217	217	const Allocator = mem.Allocator;
218	218	const Atom = @import("Atom.zig");

src/link/MachO/dyld_info/Rebase.zig+1-1

...	...	@@ -656,7 +656,7 @@ const macho = std.macho;
656	656	const mem = std.mem;
657	657	const testing = std.testing;
658	658	const Allocator = mem.Allocator;
659		const Writer = std.io.Writer;
	659	const Writer = std.Io.Writer;
660	660
661	661	const trace = @import("../../../tracy.zig").trace;
662	662	const File = @import("../file.zig").File;

src/link/MachO/dyld_info/bind.zig+1-1

...	...	@@ -647,7 +647,7 @@ fn setDylibOrdinal(ordinal: i16, writer: *std.Io.Writer) !void {
647	647	fn setAddend(addend: i64, writer: *std.Io.Writer) !void {
648	648	log.debug(">>> set addend: {x}", .{addend});
649	649	try writer.writeByte(macho.BIND_OPCODE_SET_ADDEND_SLEB);
650		try std.leb.writeIleb128(writer, addend);
	650	try writer.writeSleb128(addend);
651	651	}
652	652
653	653	fn doBind(writer: *std.Io.Writer) !void {

src/link/MachO/eh_frame.zig+4-5

...	...	@@ -248,13 +248,12 @@ pub const Iterator = struct {
248	248	pub fn next(it: *Iterator) !?Record {
249	249	if (it.pos >= it.data.len) return null;
250	250
251		var stream = std.io.fixedBufferStream(it.data[it.pos..]);
252		const reader = stream.reader();
	251	var reader: std.Io.Reader = .fixed(it.data[it.pos..]);
253	252
254		const size = try reader.readInt(u32, .little);
	253	const size = try reader.takeInt(u32, .little);
255	254	if (size == 0xFFFFFFFF) @panic("DWARF CFI is 32bit on macOS");
256	255
257		const id = try reader.readInt(u32, .little);
	256	const id = try reader.takeInt(u32, .little);
258	257	const record = Record{
259	258	.tag = if (id == 0) .cie else .fde,
260	259	.offset = it.pos,
...	...	@@ -502,7 +501,7 @@ const math = std.math;
502	501	const mem = std.mem;
503	502	const std = @import("std");
504	503	const trace = @import("../../tracy.zig").trace;
505		const Writer = std.io.Writer;
	504	const Writer = std.Io.Writer;
506	505
507	506	const Allocator = std.mem.Allocator;
508	507	const Atom = @import("Atom.zig");

src/link/MachO/file.zig+1-1

...	...	@@ -364,7 +364,7 @@ const log = std.log.scoped(.link);
364	364	const macho = std.macho;
365	365	const Allocator = std.mem.Allocator;
366	366	const Path = std.Build.Cache.Path;
367		const Writer = std.io.Writer;
	367	const Writer = std.Io.Writer;
368	368
369	369	const trace = @import("../../tracy.zig").trace;
370	370	const Archive = @import("Archive.zig");

src/link/MachO/relocatable.zig+1-1

...	...	@@ -780,7 +780,7 @@ const macho = std.macho;
780	780	const math = std.math;
781	781	const mem = std.mem;
782	782	const state_log = std.log.scoped(.link_state);
783		const Writer = std.io.Writer;
	783	const Writer = std.Io.Writer;
784	784
785	785	const Archive = @import("Archive.zig");
786	786	const Atom = @import("Atom.zig");

src/link/SpirV.zig+1-1

...	...	@@ -249,7 +249,7 @@ pub fn flush(
249	249	// We need to export the list of error names somewhere so that we can pretty-print them in the
250	250	// executor. This is not really an important thing though, so we can just dump it in any old
251	251	// nonsemantic instruction. For now, just put it in OpSourceExtension with a special name.
252		var error_info: std.io.Writer.Allocating = .init(linker.module.gpa);
	252	var error_info: std.Io.Writer.Allocating = .init(linker.module.gpa);
253	253	defer error_info.deinit();
254	254
255	255	error_info.writer.writeAll("zig_errors:") catch return error.OutOfMemory;

src/link/Wasm.zig+2-2

...	...	@@ -2126,7 +2126,7 @@ pub const FunctionType = extern struct {
2126	2126	wasm: *const Wasm,
2127	2127	ft: FunctionType,
2128	2128
2129		pub fn format(self: Formatter, writer: *std.io.Writer) std.io.Writer.Error!void {
	2129	pub fn format(self: Formatter, writer: *std.Io.Writer) std.Io.Writer.Error!void {
2130	2130	const params = self.ft.params.slice(self.wasm);
2131	2131	const returns = self.ft.returns.slice(self.wasm);
2132	2132
...	...	@@ -2905,7 +2905,7 @@ pub const Feature = packed struct(u8) {
2905	2905	@"=",
2906	2906	};
2907	2907
2908		pub fn format(feature: Feature, writer: *std.io.Writer) std.io.Writer.Error!void {
	2908	pub fn format(feature: Feature, writer: *std.Io.Writer) std.Io.Writer.Error!void {
2909	2909	try writer.print("{s} {s}", .{ @tagName(feature.prefix), @tagName(feature.tag) });
2910	2910	}
2911	2911

src/link/Wasm/Object.zig+3-6

...	...	@@ -1460,13 +1460,10 @@ fn parseFeatures(
1460	1460	}
1461	1461
1462	1462	fn readLeb(comptime T: type, bytes: []const u8, pos: usize) struct { T, usize } {
1463		var fbr = std.io.fixedBufferStream(bytes[pos..]);
	1463	var reader: std.Io.Reader = .fixed(bytes[pos..]);
1464	1464	return .{
1465		switch (@typeInfo(T).int.signedness) {
1466		.signed => std.leb.readIleb128(T, fbr.reader()) catch unreachable,
1467		.unsigned => std.leb.readUleb128(T, fbr.reader()) catch unreachable,
1468		},
1469		pos + fbr.pos,
	1465	reader.takeLeb128(T) catch unreachable,
	1466	pos + reader.seek,
1470	1467	};
1471	1468	}
1472	1469

src/link/table_section.zig+1-1

...	...	@@ -39,7 +39,7 @@ pub fn TableSection(comptime Entry: type) type {
39	39	return self.entries.items.len;
40	40	}
41	41
42		pub fn format(self: Self, writer: *std.io.Writer) std.io.Writer.Error!void {
	42	pub fn format(self: Self, writer: *std.Io.Writer) std.Io.Writer.Error!void {
43	43	try writer.writeAll("TableSection:\n");
44	44	for (self.entries.items, 0..) \|entry, i\| {
45	45	try writer.print(" {d} => {}\n", .{ i, entry });

src/link/tapi/parse.zig+5-5

...	...	@@ -57,7 +57,7 @@ pub const Node = struct {
57	57	}
58	58	}
59	59
60		pub fn format(self: const Node, writer: std.io.Writer) std.io.Writer.Error!void {
	60	pub fn format(self: const Node, writer: std.Io.Writer) std.Io.Writer.Error!void {
61	61	switch (self.tag) {
62	62	inline else => \|tag\| return @as(*tag.Type(), @fieldParentPtr("base", self)).format(writer),
63	63	}
...	...	@@ -81,7 +81,7 @@ pub const Node = struct {
81	81	}
82	82	}
83	83
84		pub fn format(self: const Doc, writer: std.io.Writer) std.io.Writer.Error!void {
	84	pub fn format(self: const Doc, writer: std.Io.Writer) std.Io.Writer.Error!void {
85	85	if (self.directive) \|id\| {
86	86	try writer.print("{{ ", .{});
87	87	const directive = self.base.tree.getRaw(id, id);
...	...	@@ -121,7 +121,7 @@ pub const Node = struct {
121	121	self.values.deinit(allocator);
122	122	}
123	123
124		pub fn format(self: const Map, writer: std.io.Writer) std.io.Writer.Error!void {
	124	pub fn format(self: const Map, writer: std.Io.Writer) std.Io.Writer.Error!void {
125	125	try std.fmt.format(writer, "{{ ", .{});
126	126	for (self.values.items) \|entry\| {
127	127	const key = self.base.tree.getRaw(entry.key, entry.key);
...	...	@@ -153,7 +153,7 @@ pub const Node = struct {
153	153	self.values.deinit(allocator);
154	154	}
155	155
156		pub fn format(self: const List, writer: std.io.Writer) std.io.Writer.Error!void {
	156	pub fn format(self: const List, writer: std.Io.Writer) std.Io.Writer.Error!void {
157	157	try std.fmt.format(writer, "[ ", .{});
158	158	for (self.values.items) \|node\| {
159	159	try std.fmt.format(writer, "{}, ", .{node});
...	...	@@ -177,7 +177,7 @@ pub const Node = struct {
177	177	self.string_value.deinit(allocator);
178	178	}
179	179
180		pub fn format(self: const Value, writer: std.io.Writer) std.io.Writer.Error!void {
	180	pub fn format(self: const Value, writer: std.Io.Writer) std.Io.Writer.Error!void {
181	181	const raw = self.base.tree.getRaw(self.base.start, self.base.end);
182	182	return std.fmt.format(writer, "{s}", .{raw});
183	183	}

src/main.zig+7-8

...	...	@@ -1,7 +1,6 @@
1	1	const std = @import("std");
2	2	const builtin = @import("builtin");
3	3	const assert = std.debug.assert;
4		const io = std.io;
5	4	const fs = std.fs;
6	5	const mem = std.mem;
7	6	const process = std.process;
...	...	@@ -5444,7 +5443,7 @@ fn cmdBuild(gpa: Allocator, arena: Allocator, args: []const []const u8) !void {
5444	5443	// that are missing.
5445	5444	const s = fs.path.sep_str;
5446	5445	const tmp_sub_path = "tmp" ++ s ++ results_tmp_file_nonce;
5447		const stdout = dirs.local_cache.handle.readFileAlloc(arena, tmp_sub_path, 50 * 1024 * 1024) catch \|err\| {
	5446	const stdout = dirs.local_cache.handle.readFileAlloc(tmp_sub_path, arena, .limited(50 * 1024 * 1024)) catch \|err\| {
5448	5447	fatal("unable to read results of configure phase from '{f}{s}': {s}", .{
5449	5448	dirs.local_cache, tmp_sub_path, @errorName(err),
5450	5449	});
...	...	@@ -5694,7 +5693,8 @@ fn jitCmd(
5694	5693	try child.spawn();
5695	5694
5696	5695	if (options.capture) \|ptr\| {
5697		ptr.* = try child.stdout.?.readToEndAlloc(arena, std.math.maxInt(u32));
	5696	var stdout_reader = child.stdout.?.readerStreaming(&.{});
	5697	ptr.* = try stdout_reader.interface.allocRemaining(arena, .limited(std.math.maxInt(u32)));
5698	5698	}
5699	5699
5700	5700	const term = try child.wait();
...	...	@@ -5827,7 +5827,7 @@ const ArgIteratorResponseFile = process.ArgIteratorGeneral(.{ .comments = true,
5827	5827	/// Initialize the arguments from a Response File. "*.rsp"
5828	5828	fn initArgIteratorResponseFile(allocator: Allocator, resp_file_path: []const u8) !ArgIteratorResponseFile {
5829	5829	const max_bytes = 10 * 1024 * 1024; // 10 MiB of command line arguments is a reasonable limit
5830		const cmd_line = try fs.cwd().readFileAlloc(allocator, resp_file_path, max_bytes);
	5830	const cmd_line = try fs.cwd().readFileAlloc(resp_file_path, allocator, .limited(max_bytes));
5831	5831	errdefer allocator.free(cmd_line);
5832	5832
5833	5833	return ArgIteratorResponseFile.initTakeOwnership(allocator, cmd_line);
...	...	@@ -7351,10 +7351,9 @@ fn loadManifest(
7351	7351	) !struct { Package.Manifest, Ast } {
7352	7352	const manifest_bytes = while (true) {
7353	7353	break options.dir.readFileAllocOptions(
7354		arena,
7355	7354	Package.Manifest.basename,
7356		Package.Manifest.max_bytes,
7357		null,
	7355	arena,
	7356	.limited(Package.Manifest.max_bytes),
7358	7357	.@"1",
7359	7358	0,
7360	7359	) catch \|err\| switch (err) {
...	...	@@ -7436,7 +7435,7 @@ const Templates = struct {
7436	7435	}
7437	7436
7438	7437	const max_bytes = 10 * 1024 * 1024;
7439		const contents = templates.dir.readFileAlloc(arena, template_path, max_bytes) catch \|err\| {
	7438	const contents = templates.dir.readFileAlloc(template_path, arena, .limited(max_bytes)) catch \|err\| {
7440	7439	fatal("unable to read template file '{s}': {s}", .{ template_path, @errorName(err) });
7441	7440	};
7442	7441	templates.buffer.clearRetainingCapacity();

src/print_targets.zig+2-3

...	...	@@ -1,6 +1,5 @@
1	1	const std = @import("std");
2	2	const fs = std.fs;
3		const io = std.io;
4	3	const mem = std.mem;
5	4	const meta = std.meta;
6	5	const fatal = std.process.fatal;
...	...	@@ -25,9 +24,9 @@ pub fn cmdTargets(
25	24	defer allocator.free(zig_lib_directory.path.?);
26	25
27	26	const abilists_contents = zig_lib_directory.handle.readFileAlloc(
28		allocator,
29	27	glibc.abilists_path,
30		glibc.abilists_max_size,
	28	allocator,
	29	.limited(glibc.abilists_max_size),
31	30	) catch \|err\| switch (err) {
32	31	error.OutOfMemory => return error.OutOfMemory,
33	32	else => fatal("unable to read " ++ glibc.abilists_path ++ ": {s}", .{@errorName(err)}),

src/print_value.zig+10-9

...	...	@@ -9,6 +9,7 @@ const Sema = @import("Sema.zig");
9	9	const InternPool = @import("InternPool.zig");
10	10	const Allocator = std.mem.Allocator;
11	11	const Target = std.Target;
	12	const Writer = std.Io.Writer;
12	13
13	14	const max_aggregate_items = 100;
14	15	const max_string_len = 256;
...	...	@@ -20,7 +21,7 @@ pub const FormatContext = struct {
20	21	depth: u8,
21	22	};
22	23
23		pub fn formatSema(ctx: FormatContext, writer: *std.io.Writer) std.io.Writer.Error!void {
	24	pub fn formatSema(ctx: FormatContext, writer: *Writer) Writer.Error!void {
24	25	const sema = ctx.opt_sema.?;
25	26	return print(ctx.val, writer, ctx.depth, ctx.pt, sema) catch \|err\| switch (err) {
26	27	error.OutOfMemory => @panic("OOM"), // We're not allowed to return this from a format function
...	...	@@ -30,7 +31,7 @@ pub fn formatSema(ctx: FormatContext, writer: *std.io.Writer) std.io.Writer.Erro
30	31	};
31	32	}
32	33
33		pub fn format(ctx: FormatContext, writer: *std.io.Writer) std.io.Writer.Error!void {
	34	pub fn format(ctx: FormatContext, writer: *Writer) Writer.Error!void {
34	35	std.debug.assert(ctx.opt_sema == null);
35	36	return print(ctx.val, writer, ctx.depth, ctx.pt, null) catch \|err\| switch (err) {
36	37	error.OutOfMemory => @panic("OOM"), // We're not allowed to return this from a format function
...	...	@@ -41,11 +42,11 @@ pub fn format(ctx: FormatContext, writer: *std.io.Writer) std.io.Writer.Error!vo
41	42
42	43	pub fn print(
43	44	val: Value,
44		writer: *std.io.Writer,
	45	writer: *Writer,
45	46	level: u8,
46	47	pt: Zcu.PerThread,
47	48	opt_sema: ?*Sema,
48		) (std.io.Writer.Error \|\| Zcu.CompileError)!void {
	49	) (Writer.Error \|\| Zcu.CompileError)!void {
49	50	const zcu = pt.zcu;
50	51	const ip = &zcu.intern_pool;
51	52	switch (ip.indexToKey(val.toIntern())) {
...	...	@@ -184,11 +185,11 @@ fn printAggregate(
184	185	val: Value,
185	186	aggregate: InternPool.Key.Aggregate,
186	187	is_ref: bool,
187		writer: *std.io.Writer,
	188	writer: *Writer,
188	189	level: u8,
189	190	pt: Zcu.PerThread,
190	191	opt_sema: ?*Sema,
191		) (std.io.Writer.Error \|\| Zcu.CompileError)!void {
	192	) (Writer.Error \|\| Zcu.CompileError)!void {
192	193	if (level == 0) {
193	194	if (is_ref) try writer.writeByte('&');
194	195	return writer.writeAll(".{ ... }");
...	...	@@ -270,11 +271,11 @@ fn printPtr(
270	271	ptr_val: Value,
271	272	/// Whether to print `derivation` as an lvalue or rvalue. If `null`, the more concise option is chosen.
272	273	want_kind: ?PrintPtrKind,
273		writer: *std.io.Writer,
	274	writer: *Writer,
274	275	level: u8,
275	276	pt: Zcu.PerThread,
276	277	opt_sema: ?*Sema,
277		) (std.io.Writer.Error \|\| Zcu.CompileError)!void {
	278	) (Writer.Error \|\| Zcu.CompileError)!void {
278	279	const ptr = switch (pt.zcu.intern_pool.indexToKey(ptr_val.toIntern())) {
279	280	.undef => return writer.writeAll("undefined"),
280	281	.ptr => \|ptr\| ptr,
...	...	@@ -316,7 +317,7 @@ const PrintPtrKind = enum { lvalue, rvalue };
316	317	/// Returns the root derivation, which may be ignored.
317	318	pub fn printPtrDerivation(
318	319	derivation: Value.PointerDeriveStep,
319		writer: *std.io.Writer,
	320	writer: *Writer,
320	321	pt: Zcu.PerThread,
321	322	/// Whether to print `derivation` as an lvalue or rvalue. If `null`, the more concise option is chosen.
322	323	/// If this is `.rvalue`, the result may look like `&foo`, so it's not necessarily valid to treat it as

src/print_zir.zig+106-106

...	...	@@ -10,7 +10,7 @@ const Zcu = @import("Zcu.zig");
10	10	const LazySrcLoc = Zcu.LazySrcLoc;
11	11
12	12	/// Write human-readable, debug formatted ZIR code.
13		pub fn renderAsText(gpa: Allocator, tree: ?Ast, zir: Zir, bw: *std.io.Writer) !void {
	13	pub fn renderAsText(gpa: Allocator, tree: ?Ast, zir: Zir, bw: *std.Io.Writer) !void {
14	14	var arena = std.heap.ArenaAllocator.init(gpa);
15	15	defer arena.deinit();
16	16
...	...	@@ -57,7 +57,7 @@ pub fn renderInstructionContext(
57	57	scope_file: *Zcu.File,
58	58	parent_decl_node: Ast.Node.Index,
59	59	indent: u32,
60		bw: *std.io.Writer,
	60	bw: *std.Io.Writer,
61	61	) !void {
62	62	var arena = std.heap.ArenaAllocator.init(gpa);
63	63	defer arena.deinit();
...	...	@@ -89,7 +89,7 @@ pub fn renderSingleInstruction(
89	89	scope_file: *Zcu.File,
90	90	parent_decl_node: Ast.Node.Index,
91	91	indent: u32,
92		bw: *std.io.Writer,
	92	bw: *std.Io.Writer,
93	93	) !void {
94	94	var arena = std.heap.ArenaAllocator.init(gpa);
95	95	defer arena.deinit();
...	...	@@ -176,11 +176,11 @@ const Writer = struct {
176	176	}
177	177	} = .{},
178	178
179		const Error = std.io.Writer.Error \|\| Allocator.Error;
	179	const Error = std.Io.Writer.Error \|\| Allocator.Error;
180	180
181	181	fn writeInstToStream(
182	182	self: *Writer,
183		stream: *std.io.Writer,
	183	stream: *std.Io.Writer,
184	184	inst: Zir.Inst.Index,
185	185	) Error!void {
186	186	const tags = self.code.instructions.items(.tag);
...	...	@@ -508,7 +508,7 @@ const Writer = struct {
508	508	}
509	509	}
510	510
511		fn writeExtended(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	511	fn writeExtended(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
512	512	const extended = self.code.instructions.items(.data)[@intFromEnum(inst)].extended;
513	513	try stream.print("{s}(", .{@tagName(extended.opcode)});
514	514	switch (extended.opcode) {
...	...	@@ -616,13 +616,13 @@ const Writer = struct {
616	616	}
617	617	}
618	618
619		fn writeExtNode(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	619	fn writeExtNode(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
620	620	try stream.writeAll(")) ");
621	621	const src_node: Ast.Node.Offset = @enumFromInt(@as(i32, @bitCast(extended.operand)));
622	622	try self.writeSrcNode(stream, src_node);
623	623	}
624	624
625		fn writeArrayInitElemType(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	625	fn writeArrayInitElemType(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
626	626	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].bin;
627	627	try self.writeInstRef(stream, inst_data.lhs);
628	628	try stream.print(", {d})", .{@intFromEnum(inst_data.rhs)});
...	...	@@ -630,7 +630,7 @@ const Writer = struct {
630	630
631	631	fn writeUnNode(
632	632	self: *Writer,
633		stream: *std.io.Writer,
	633	stream: *std.Io.Writer,
634	634	inst: Zir.Inst.Index,
635	635	) Error!void {
636	636	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].un_node;
...	...	@@ -641,7 +641,7 @@ const Writer = struct {
641	641
642	642	fn writeUnTok(
643	643	self: *Writer,
644		stream: *std.io.Writer,
	644	stream: *std.Io.Writer,
645	645	inst: Zir.Inst.Index,
646	646	) Error!void {
647	647	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].un_tok;
...	...	@@ -652,7 +652,7 @@ const Writer = struct {
652	652
653	653	fn writeValidateDestructure(
654	654	self: *Writer,
655		stream: *std.io.Writer,
	655	stream: *std.Io.Writer,
656	656	inst: Zir.Inst.Index,
657	657	) Error!void {
658	658	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
...	...	@@ -666,7 +666,7 @@ const Writer = struct {
666	666
667	667	fn writeValidateArrayInitTy(
668	668	self: *Writer,
669		stream: *std.io.Writer,
	669	stream: *std.Io.Writer,
670	670	inst: Zir.Inst.Index,
671	671	) Error!void {
672	672	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
...	...	@@ -678,7 +678,7 @@ const Writer = struct {
678	678
679	679	fn writeArrayTypeSentinel(
680	680	self: *Writer,
681		stream: *std.io.Writer,
	681	stream: *std.Io.Writer,
682	682	inst: Zir.Inst.Index,
683	683	) Error!void {
684	684	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
...	...	@@ -694,7 +694,7 @@ const Writer = struct {
694	694
695	695	fn writePtrType(
696	696	self: *Writer,
697		stream: *std.io.Writer,
	697	stream: *std.Io.Writer,
698	698	inst: Zir.Inst.Index,
699	699	) Error!void {
700	700	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].ptr_type;
...	...	@@ -737,12 +737,12 @@ const Writer = struct {
737	737	try self.writeSrcNode(stream, extra.data.src_node);
738	738	}
739	739
740		fn writeInt(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	740	fn writeInt(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
741	741	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].int;
742	742	try stream.print("{d})", .{inst_data});
743	743	}
744	744
745		fn writeIntBig(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	745	fn writeIntBig(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
746	746	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].str;
747	747	const byte_count = inst_data.len * @sizeOf(std.math.big.Limb);
748	748	const limb_bytes = self.code.string_bytes[@intFromEnum(inst_data.start)..][0..byte_count];
...	...	@@ -761,12 +761,12 @@ const Writer = struct {
761	761	try stream.print("{s})", .{as_string});
762	762	}
763	763
764		fn writeFloat(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	764	fn writeFloat(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
765	765	const number = self.code.instructions.items(.data)[@intFromEnum(inst)].float;
766	766	try stream.print("{d})", .{number});
767	767	}
768	768
769		fn writeFloat128(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	769	fn writeFloat128(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
770	770	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
771	771	const extra = self.code.extraData(Zir.Inst.Float128, inst_data.payload_index).data;
772	772	const number = extra.get();
...	...	@@ -777,7 +777,7 @@ const Writer = struct {
777	777
778	778	fn writeStr(
779	779	self: *Writer,
780		stream: *std.io.Writer,
	780	stream: *std.Io.Writer,
781	781	inst: Zir.Inst.Index,
782	782	) Error!void {
783	783	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].str;
...	...	@@ -785,7 +785,7 @@ const Writer = struct {
785	785	try stream.print("\"{f}\")", .{std.zig.fmtString(str)});
786	786	}
787	787
788		fn writeSliceStart(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	788	fn writeSliceStart(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
789	789	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
790	790	const extra = self.code.extraData(Zir.Inst.SliceStart, inst_data.payload_index).data;
791	791	try self.writeInstRef(stream, extra.lhs);
...	...	@@ -795,7 +795,7 @@ const Writer = struct {
795	795	try self.writeSrcNode(stream, inst_data.src_node);
796	796	}
797	797
798		fn writeSliceEnd(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	798	fn writeSliceEnd(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
799	799	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
800	800	const extra = self.code.extraData(Zir.Inst.SliceEnd, inst_data.payload_index).data;
801	801	try self.writeInstRef(stream, extra.lhs);
...	...	@@ -807,7 +807,7 @@ const Writer = struct {
807	807	try self.writeSrcNode(stream, inst_data.src_node);
808	808	}
809	809
810		fn writeSliceSentinel(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	810	fn writeSliceSentinel(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
811	811	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
812	812	const extra = self.code.extraData(Zir.Inst.SliceSentinel, inst_data.payload_index).data;
813	813	try self.writeInstRef(stream, extra.lhs);
...	...	@@ -821,7 +821,7 @@ const Writer = struct {
821	821	try self.writeSrcNode(stream, inst_data.src_node);
822	822	}
823	823
824		fn writeSliceLength(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	824	fn writeSliceLength(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
825	825	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
826	826	const extra = self.code.extraData(Zir.Inst.SliceLength, inst_data.payload_index).data;
827	827	try self.writeInstRef(stream, extra.lhs);
...	...	@@ -837,7 +837,7 @@ const Writer = struct {
837	837	try self.writeSrcNode(stream, inst_data.src_node);
838	838	}
839	839
840		fn writeUnionInit(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	840	fn writeUnionInit(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
841	841	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
842	842	const extra = self.code.extraData(Zir.Inst.UnionInit, inst_data.payload_index).data;
843	843	try self.writeInstRef(stream, extra.union_type);
...	...	@@ -849,7 +849,7 @@ const Writer = struct {
849	849	try self.writeSrcNode(stream, inst_data.src_node);
850	850	}
851	851
852		fn writeShuffle(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	852	fn writeShuffle(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
853	853	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
854	854	const extra = self.code.extraData(Zir.Inst.Shuffle, inst_data.payload_index).data;
855	855	try self.writeInstRef(stream, extra.elem_type);
...	...	@@ -863,7 +863,7 @@ const Writer = struct {
863	863	try self.writeSrcNode(stream, inst_data.src_node);
864	864	}
865	865
866		fn writeSelect(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	866	fn writeSelect(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
867	867	const extra = self.code.extraData(Zir.Inst.Select, extended.operand).data;
868	868	try self.writeInstRef(stream, extra.elem_type);
869	869	try stream.writeAll(", ");
...	...	@@ -876,7 +876,7 @@ const Writer = struct {
876	876	try self.writeSrcNode(stream, extra.node);
877	877	}
878	878
879		fn writeMulAdd(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	879	fn writeMulAdd(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
880	880	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
881	881	const extra = self.code.extraData(Zir.Inst.MulAdd, inst_data.payload_index).data;
882	882	try self.writeInstRef(stream, extra.mulend1);
...	...	@@ -888,7 +888,7 @@ const Writer = struct {
888	888	try self.writeSrcNode(stream, inst_data.src_node);
889	889	}
890	890
891		fn writeBuiltinCall(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	891	fn writeBuiltinCall(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
892	892	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
893	893	const extra = self.code.extraData(Zir.Inst.BuiltinCall, inst_data.payload_index).data;
894	894
...	...	@@ -904,7 +904,7 @@ const Writer = struct {
904	904	try self.writeSrcNode(stream, inst_data.src_node);
905	905	}
906	906
907		fn writeFieldParentPtr(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	907	fn writeFieldParentPtr(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
908	908	const extra = self.code.extraData(Zir.Inst.FieldParentPtr, extended.operand).data;
909	909	const FlagsInt = @typeInfo(Zir.Inst.FullPtrCastFlags).@"struct".backing_integer.?;
910	910	const flags: Zir.Inst.FullPtrCastFlags = @bitCast(@as(FlagsInt, @truncate(extended.small)));
...	...	@@ -921,7 +921,7 @@ const Writer = struct {
921	921	try self.writeSrcNode(stream, extra.src_node);
922	922	}
923	923
924		fn writeParam(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	924	fn writeParam(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
925	925	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_tok;
926	926	const extra = self.code.extraData(Zir.Inst.Param, inst_data.payload_index);
927	927	const body = self.code.bodySlice(extra.end, extra.data.type.body_len);
...	...	@@ -936,7 +936,7 @@ const Writer = struct {
936	936	try self.writeSrcTok(stream, inst_data.src_tok);
937	937	}
938	938
939		fn writePlNodeBin(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	939	fn writePlNodeBin(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
940	940	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
941	941	const extra = self.code.extraData(Zir.Inst.Bin, inst_data.payload_index).data;
942	942	try self.writeInstRef(stream, extra.lhs);
...	...	@@ -946,7 +946,7 @@ const Writer = struct {
946	946	try self.writeSrcNode(stream, inst_data.src_node);
947	947	}
948	948
949		fn writePlNodeMultiOp(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	949	fn writePlNodeMultiOp(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
950	950	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
951	951	const extra = self.code.extraData(Zir.Inst.MultiOp, inst_data.payload_index);
952	952	const args = self.code.refSlice(extra.end, extra.data.operands_len);
...	...	@@ -959,7 +959,7 @@ const Writer = struct {
959	959	try self.writeSrcNode(stream, inst_data.src_node);
960	960	}
961	961
962		fn writeArrayMul(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	962	fn writeArrayMul(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
963	963	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
964	964	const extra = self.code.extraData(Zir.Inst.ArrayMul, inst_data.payload_index).data;
965	965	try self.writeInstRef(stream, extra.res_ty);
...	...	@@ -971,13 +971,13 @@ const Writer = struct {
971	971	try self.writeSrcNode(stream, inst_data.src_node);
972	972	}
973	973
974		fn writeElemValImm(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	974	fn writeElemValImm(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
975	975	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].elem_val_imm;
976	976	try self.writeInstRef(stream, inst_data.operand);
977	977	try stream.print(", {d})", .{inst_data.idx});
978	978	}
979	979
980		fn writeArrayInitElemPtr(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	980	fn writeArrayInitElemPtr(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
981	981	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
982	982	const extra = self.code.extraData(Zir.Inst.ElemPtrImm, inst_data.payload_index).data;
983	983
...	...	@@ -986,7 +986,7 @@ const Writer = struct {
986	986	try self.writeSrcNode(stream, inst_data.src_node);
987	987	}
988	988
989		fn writePlNodeExport(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	989	fn writePlNodeExport(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
990	990	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
991	991	const extra = self.code.extraData(Zir.Inst.Export, inst_data.payload_index).data;
992	992
...	...	@@ -997,7 +997,7 @@ const Writer = struct {
997	997	try self.writeSrcNode(stream, inst_data.src_node);
998	998	}
999	999
1000		fn writeValidateArrayInitRefTy(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1000	fn writeValidateArrayInitRefTy(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1001	1001	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1002	1002	const extra = self.code.extraData(Zir.Inst.ArrayInitRefTy, inst_data.payload_index).data;
1003	1003
...	...	@@ -1007,7 +1007,7 @@ const Writer = struct {
1007	1007	try self.writeSrcNode(stream, inst_data.src_node);
1008	1008	}
1009	1009
1010		fn writeStructInit(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1010	fn writeStructInit(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1011	1011	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1012	1012	const extra = self.code.extraData(Zir.Inst.StructInit, inst_data.payload_index);
1013	1013	var field_i: u32 = 0;
...	...	@@ -1031,7 +1031,7 @@ const Writer = struct {
1031	1031	try self.writeSrcNode(stream, inst_data.src_node);
1032	1032	}
1033	1033
1034		fn writeCmpxchg(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1034	fn writeCmpxchg(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1035	1035	const extra = self.code.extraData(Zir.Inst.Cmpxchg, extended.operand).data;
1036	1036
1037	1037	try self.writeInstRef(stream, extra.ptr);
...	...	@@ -1047,7 +1047,7 @@ const Writer = struct {
1047	1047	try self.writeSrcNode(stream, extra.node);
1048	1048	}
1049	1049
1050		fn writePtrCastFull(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1050	fn writePtrCastFull(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1051	1051	const FlagsInt = @typeInfo(Zir.Inst.FullPtrCastFlags).@"struct".backing_integer.?;
1052	1052	const flags: Zir.Inst.FullPtrCastFlags = @bitCast(@as(FlagsInt, @truncate(extended.small)));
1053	1053	const extra = self.code.extraData(Zir.Inst.BinNode, extended.operand).data;
...	...	@@ -1063,7 +1063,7 @@ const Writer = struct {
1063	1063	try self.writeSrcNode(stream, extra.node);
1064	1064	}
1065	1065
1066		fn writePtrCastNoDest(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1066	fn writePtrCastNoDest(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1067	1067	const FlagsInt = @typeInfo(Zir.Inst.FullPtrCastFlags).@"struct".backing_integer.?;
1068	1068	const flags: Zir.Inst.FullPtrCastFlags = @bitCast(@as(FlagsInt, @truncate(extended.small)));
1069	1069	const extra = self.code.extraData(Zir.Inst.UnNode, extended.operand).data;
...	...	@@ -1074,7 +1074,7 @@ const Writer = struct {
1074	1074	try self.writeSrcNode(stream, extra.node);
1075	1075	}
1076	1076
1077		fn writeAtomicLoad(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1077	fn writeAtomicLoad(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1078	1078	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1079	1079	const extra = self.code.extraData(Zir.Inst.AtomicLoad, inst_data.payload_index).data;
1080	1080
...	...	@@ -1087,7 +1087,7 @@ const Writer = struct {
1087	1087	try self.writeSrcNode(stream, inst_data.src_node);
1088	1088	}
1089	1089
1090		fn writeAtomicStore(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1090	fn writeAtomicStore(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1091	1091	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1092	1092	const extra = self.code.extraData(Zir.Inst.AtomicStore, inst_data.payload_index).data;
1093	1093
...	...	@@ -1100,7 +1100,7 @@ const Writer = struct {
1100	1100	try self.writeSrcNode(stream, inst_data.src_node);
1101	1101	}
1102	1102
1103		fn writeAtomicRmw(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1103	fn writeAtomicRmw(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1104	1104	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1105	1105	const extra = self.code.extraData(Zir.Inst.AtomicRmw, inst_data.payload_index).data;
1106	1106
...	...	@@ -1115,7 +1115,7 @@ const Writer = struct {
1115	1115	try self.writeSrcNode(stream, inst_data.src_node);
1116	1116	}
1117	1117
1118		fn writeStructInitAnon(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1118	fn writeStructInitAnon(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1119	1119	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1120	1120	const extra = self.code.extraData(Zir.Inst.StructInitAnon, inst_data.payload_index);
1121	1121	var field_i: u32 = 0;
...	...	@@ -1136,7 +1136,7 @@ const Writer = struct {
1136	1136	try self.writeSrcNode(stream, inst_data.src_node);
1137	1137	}
1138	1138
1139		fn writeStructInitFieldType(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1139	fn writeStructInitFieldType(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1140	1140	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1141	1141	const extra = self.code.extraData(Zir.Inst.FieldType, inst_data.payload_index).data;
1142	1142	try self.writeInstRef(stream, extra.container_type);
...	...	@@ -1145,7 +1145,7 @@ const Writer = struct {
1145	1145	try self.writeSrcNode(stream, inst_data.src_node);
1146	1146	}
1147	1147
1148		fn writeFieldTypeRef(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1148	fn writeFieldTypeRef(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1149	1149	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1150	1150	const extra = self.code.extraData(Zir.Inst.FieldTypeRef, inst_data.payload_index).data;
1151	1151	try self.writeInstRef(stream, extra.container_type);
...	...	@@ -1155,7 +1155,7 @@ const Writer = struct {
1155	1155	try self.writeSrcNode(stream, inst_data.src_node);
1156	1156	}
1157	1157
1158		fn writeNodeMultiOp(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1158	fn writeNodeMultiOp(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1159	1159	const extra = self.code.extraData(Zir.Inst.NodeMultiOp, extended.operand);
1160	1160	const operands = self.code.refSlice(extra.end, extended.small);
1161	1161
...	...	@@ -1169,7 +1169,7 @@ const Writer = struct {
1169	1169
1170	1170	fn writeInstNode(
1171	1171	self: *Writer,
1172		stream: *std.io.Writer,
	1172	stream: *std.Io.Writer,
1173	1173	inst: Zir.Inst.Index,
1174	1174	) Error!void {
1175	1175	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].inst_node;
...	...	@@ -1180,7 +1180,7 @@ const Writer = struct {
1180	1180
1181	1181	fn writeAsm(
1182	1182	self: *Writer,
1183		stream: *std.io.Writer,
	1183	stream: *std.Io.Writer,
1184	1184	extended: Zir.Inst.Extended.InstData,
1185	1185	tmpl_is_expr: bool,
1186	1186	) !void {
...	...	@@ -1258,7 +1258,7 @@ const Writer = struct {
1258	1258	try self.writeSrcNode(stream, extra.data.src_node);
1259	1259	}
1260	1260
1261		fn writeOverflowArithmetic(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1261	fn writeOverflowArithmetic(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1262	1262	const extra = self.code.extraData(Zir.Inst.BinNode, extended.operand).data;
1263	1263
1264	1264	try self.writeInstRef(stream, extra.lhs);
...	...	@@ -1270,7 +1270,7 @@ const Writer = struct {
1270	1270
1271	1271	fn writeCall(
1272	1272	self: *Writer,
1273		stream: *std.io.Writer,
	1273	stream: *std.Io.Writer,
1274	1274	inst: Zir.Inst.Index,
1275	1275	comptime kind: enum { direct, field },
1276	1276	) !void {
...	...	@@ -1321,7 +1321,7 @@ const Writer = struct {
1321	1321	try self.writeSrcNode(stream, inst_data.src_node);
1322	1322	}
1323	1323
1324		fn writeBlock(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1324	fn writeBlock(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1325	1325	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1326	1326	const extra = self.code.extraData(Zir.Inst.Block, inst_data.payload_index);
1327	1327	const body = self.code.bodySlice(extra.end, extra.data.body_len);
...	...	@@ -1330,7 +1330,7 @@ const Writer = struct {
1330	1330	try self.writeSrcNode(stream, inst_data.src_node);
1331	1331	}
1332	1332
1333		fn writeBlockComptime(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1333	fn writeBlockComptime(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1334	1334	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1335	1335	const extra = self.code.extraData(Zir.Inst.BlockComptime, inst_data.payload_index);
1336	1336	const body = self.code.bodySlice(extra.end, extra.data.body_len);
...	...	@@ -1340,7 +1340,7 @@ const Writer = struct {
1340	1340	try self.writeSrcNode(stream, inst_data.src_node);
1341	1341	}
1342	1342
1343		fn writeCondBr(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1343	fn writeCondBr(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1344	1344	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1345	1345	const extra = self.code.extraData(Zir.Inst.CondBr, inst_data.payload_index);
1346	1346	const then_body = self.code.bodySlice(extra.end, extra.data.then_body_len);
...	...	@@ -1354,7 +1354,7 @@ const Writer = struct {
1354	1354	try self.writeSrcNode(stream, inst_data.src_node);
1355	1355	}
1356	1356
1357		fn writeTry(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1357	fn writeTry(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1358	1358	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1359	1359	const extra = self.code.extraData(Zir.Inst.Try, inst_data.payload_index);
1360	1360	const body = self.code.bodySlice(extra.end, extra.data.body_len);
...	...	@@ -1365,7 +1365,7 @@ const Writer = struct {
1365	1365	try self.writeSrcNode(stream, inst_data.src_node);
1366	1366	}
1367	1367
1368		fn writeStructDecl(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1368	fn writeStructDecl(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1369	1369	const small: Zir.Inst.StructDecl.Small = @bitCast(extended.small);
1370	1370
1371	1371	const extra = self.code.extraData(Zir.Inst.StructDecl, extended.operand);
...	...	@@ -1557,7 +1557,7 @@ const Writer = struct {
1557	1557	try self.writeSrcNode(stream, .zero);
1558	1558	}
1559	1559
1560		fn writeUnionDecl(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1560	fn writeUnionDecl(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1561	1561	const small = @as(Zir.Inst.UnionDecl.Small, @bitCast(extended.small));
1562	1562
1563	1563	const extra = self.code.extraData(Zir.Inst.UnionDecl, extended.operand);
...	...	@@ -1708,7 +1708,7 @@ const Writer = struct {
1708	1708	try self.writeSrcNode(stream, .zero);
1709	1709	}
1710	1710
1711		fn writeEnumDecl(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1711	fn writeEnumDecl(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1712	1712	const small = @as(Zir.Inst.EnumDecl.Small, @bitCast(extended.small));
1713	1713
1714	1714	const extra = self.code.extraData(Zir.Inst.EnumDecl, extended.operand);
...	...	@@ -1829,7 +1829,7 @@ const Writer = struct {
1829	1829
1830	1830	fn writeOpaqueDecl(
1831	1831	self: *Writer,
1832		stream: *std.io.Writer,
	1832	stream: *std.Io.Writer,
1833	1833	extended: Zir.Inst.Extended.InstData,
1834	1834	) !void {
1835	1835	const small = @as(Zir.Inst.OpaqueDecl.Small, @bitCast(extended.small));
...	...	@@ -1871,7 +1871,7 @@ const Writer = struct {
1871	1871	try self.writeSrcNode(stream, .zero);
1872	1872	}
1873	1873
1874		fn writeTupleDecl(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	1874	fn writeTupleDecl(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
1875	1875	const fields_len = extended.small;
1876	1876	assert(fields_len != 0);
1877	1877	const extra = self.code.extraData(Zir.Inst.TupleDecl, extended.operand);
...	...	@@ -1899,7 +1899,7 @@ const Writer = struct {
1899	1899
1900	1900	fn writeErrorSetDecl(
1901	1901	self: *Writer,
1902		stream: *std.io.Writer,
	1902	stream: *std.Io.Writer,
1903	1903	inst: Zir.Inst.Index,
1904	1904	) !void {
1905	1905	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
...	...	@@ -1924,7 +1924,7 @@ const Writer = struct {
1924	1924	try self.writeSrcNode(stream, inst_data.src_node);
1925	1925	}
1926	1926
1927		fn writeSwitchBlockErrUnion(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	1927	fn writeSwitchBlockErrUnion(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
1928	1928	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
1929	1929	const extra = self.code.extraData(Zir.Inst.SwitchBlockErrUnion, inst_data.payload_index);
1930	1930
...	...	@@ -2061,7 +2061,7 @@ const Writer = struct {
2061	2061	try self.writeSrcNode(stream, inst_data.src_node);
2062	2062	}
2063	2063
2064		fn writeSwitchBlock(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2064	fn writeSwitchBlock(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2065	2065	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2066	2066	const extra = self.code.extraData(Zir.Inst.SwitchBlock, inst_data.payload_index);
2067	2067
...	...	@@ -2242,7 +2242,7 @@ const Writer = struct {
2242	2242	try self.writeSrcNode(stream, inst_data.src_node);
2243	2243	}
2244	2244
2245		fn writePlNodeField(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2245	fn writePlNodeField(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2246	2246	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2247	2247	const extra = self.code.extraData(Zir.Inst.Field, inst_data.payload_index).data;
2248	2248	const name = self.code.nullTerminatedString(extra.field_name_start);
...	...	@@ -2251,7 +2251,7 @@ const Writer = struct {
2251	2251	try self.writeSrcNode(stream, inst_data.src_node);
2252	2252	}
2253	2253
2254		fn writePlNodeFieldNamed(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2254	fn writePlNodeFieldNamed(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2255	2255	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2256	2256	const extra = self.code.extraData(Zir.Inst.FieldNamed, inst_data.payload_index).data;
2257	2257	try self.writeInstRef(stream, extra.lhs);
...	...	@@ -2261,7 +2261,7 @@ const Writer = struct {
2261	2261	try self.writeSrcNode(stream, inst_data.src_node);
2262	2262	}
2263	2263
2264		fn writeAs(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2264	fn writeAs(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2265	2265	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2266	2266	const extra = self.code.extraData(Zir.Inst.As, inst_data.payload_index).data;
2267	2267	try self.writeInstRef(stream, extra.dest_type);
...	...	@@ -2273,7 +2273,7 @@ const Writer = struct {
2273	2273
2274	2274	fn writeNode(
2275	2275	self: *Writer,
2276		stream: *std.io.Writer,
	2276	stream: *std.Io.Writer,
2277	2277	inst: Zir.Inst.Index,
2278	2278	) Error!void {
2279	2279	const src_node = self.code.instructions.items(.data)[@intFromEnum(inst)].node;
...	...	@@ -2283,7 +2283,7 @@ const Writer = struct {
2283	2283
2284	2284	fn writeStrTok(
2285	2285	self: *Writer,
2286		stream: *std.io.Writer,
	2286	stream: *std.Io.Writer,
2287	2287	inst: Zir.Inst.Index,
2288	2288	) Error!void {
2289	2289	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].str_tok;
...	...	@@ -2292,7 +2292,7 @@ const Writer = struct {
2292	2292	try self.writeSrcTok(stream, inst_data.src_tok);
2293	2293	}
2294	2294
2295		fn writeStrOp(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2295	fn writeStrOp(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2296	2296	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].str_op;
2297	2297	const str = inst_data.getStr(self.code);
2298	2298	try self.writeInstRef(stream, inst_data.operand);
...	...	@@ -2301,7 +2301,7 @@ const Writer = struct {
2301	2301
2302	2302	fn writeFunc(
2303	2303	self: *Writer,
2304		stream: *std.io.Writer,
	2304	stream: *std.Io.Writer,
2305	2305	inst: Zir.Inst.Index,
2306	2306	inferred_error_set: bool,
2307	2307	) !void {
...	...	@@ -2352,7 +2352,7 @@ const Writer = struct {
2352	2352	);
2353	2353	}
2354	2354
2355		fn writeFuncFancy(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2355	fn writeFuncFancy(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2356	2356	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2357	2357	const extra = self.code.extraData(Zir.Inst.FuncFancy, inst_data.payload_index);
2358	2358
...	...	@@ -2411,7 +2411,7 @@ const Writer = struct {
2411	2411	);
2412	2412	}
2413	2413
2414		fn writeAllocExtended(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	2414	fn writeAllocExtended(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
2415	2415	const extra = self.code.extraData(Zir.Inst.AllocExtended, extended.operand);
2416	2416	const small = @as(Zir.Inst.AllocExtended.Small, @bitCast(extended.small));
2417	2417
...	...	@@ -2434,7 +2434,7 @@ const Writer = struct {
2434	2434	try self.writeSrcNode(stream, extra.data.src_node);
2435	2435	}
2436	2436
2437		fn writeTypeofPeer(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	2437	fn writeTypeofPeer(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
2438	2438	const extra = self.code.extraData(Zir.Inst.TypeOfPeer, extended.operand);
2439	2439	const body = self.code.bodySlice(extra.data.body_index, extra.data.body_len);
2440	2440	try self.writeBracedBody(stream, body);
...	...	@@ -2447,7 +2447,7 @@ const Writer = struct {
2447	2447	try stream.writeAll("])");
2448	2448	}
2449	2449
2450		fn writeBoolBr(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2450	fn writeBoolBr(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2451	2451	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2452	2452	const extra = self.code.extraData(Zir.Inst.BoolBr, inst_data.payload_index);
2453	2453	const body = self.code.bodySlice(extra.end, extra.data.body_len);
...	...	@@ -2458,7 +2458,7 @@ const Writer = struct {
2458	2458	try self.writeSrcNode(stream, inst_data.src_node);
2459	2459	}
2460	2460
2461		fn writeIntType(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2461	fn writeIntType(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2462	2462	const int_type = self.code.instructions.items(.data)[@intFromEnum(inst)].int_type;
2463	2463	const prefix: u8 = switch (int_type.signedness) {
2464	2464	.signed => 'i',
...	...	@@ -2468,7 +2468,7 @@ const Writer = struct {
2468	2468	try self.writeSrcNode(stream, int_type.src_node);
2469	2469	}
2470	2470
2471		fn writeSaveErrRetIndex(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2471	fn writeSaveErrRetIndex(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2472	2472	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].save_err_ret_index;
2473	2473
2474	2474	try self.writeInstRef(stream, inst_data.operand);
...	...	@@ -2476,7 +2476,7 @@ const Writer = struct {
2476	2476	try stream.writeAll(")");
2477	2477	}
2478	2478
2479		fn writeRestoreErrRetIndex(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	2479	fn writeRestoreErrRetIndex(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
2480	2480	const extra = self.code.extraData(Zir.Inst.RestoreErrRetIndex, extended.operand).data;
2481	2481
2482	2482	try self.writeInstRef(stream, extra.block);
...	...	@@ -2486,7 +2486,7 @@ const Writer = struct {
2486	2486	try self.writeSrcNode(stream, extra.src_node);
2487	2487	}
2488	2488
2489		fn writeBreak(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2489	fn writeBreak(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2490	2490	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].@"break";
2491	2491	const extra = self.code.extraData(Zir.Inst.Break, inst_data.payload_index).data;
2492	2492
...	...	@@ -2496,7 +2496,7 @@ const Writer = struct {
2496	2496	try stream.writeAll(")");
2497	2497	}
2498	2498
2499		fn writeArrayInit(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2499	fn writeArrayInit(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2500	2500	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2501	2501
2502	2502	const extra = self.code.extraData(Zir.Inst.MultiOp, inst_data.payload_index);
...	...	@@ -2512,7 +2512,7 @@ const Writer = struct {
2512	2512	try self.writeSrcNode(stream, inst_data.src_node);
2513	2513	}
2514	2514
2515		fn writeArrayInitAnon(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2515	fn writeArrayInitAnon(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2516	2516	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2517	2517
2518	2518	const extra = self.code.extraData(Zir.Inst.MultiOp, inst_data.payload_index);
...	...	@@ -2527,7 +2527,7 @@ const Writer = struct {
2527	2527	try self.writeSrcNode(stream, inst_data.src_node);
2528	2528	}
2529	2529
2530		fn writeArrayInitSent(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2530	fn writeArrayInitSent(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2531	2531	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_node;
2532	2532
2533	2533	const extra = self.code.extraData(Zir.Inst.MultiOp, inst_data.payload_index);
...	...	@@ -2547,7 +2547,7 @@ const Writer = struct {
2547	2547	try self.writeSrcNode(stream, inst_data.src_node);
2548	2548	}
2549	2549
2550		fn writeUnreachable(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2550	fn writeUnreachable(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2551	2551	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].@"unreachable";
2552	2552	try stream.writeAll(") ");
2553	2553	try self.writeSrcNode(stream, inst_data.src_node);
...	...	@@ -2555,7 +2555,7 @@ const Writer = struct {
2555	2555
2556	2556	fn writeFuncCommon(
2557	2557	self: *Writer,
2558		stream: *std.io.Writer,
	2558	stream: *std.Io.Writer,
2559	2559	inferred_error_set: bool,
2560	2560	var_args: bool,
2561	2561	is_noinline: bool,
...	...	@@ -2592,19 +2592,19 @@ const Writer = struct {
2592	2592	try self.writeSrcNode(stream, src_node);
2593	2593	}
2594	2594
2595		fn writeDbgStmt(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2595	fn writeDbgStmt(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2596	2596	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].dbg_stmt;
2597	2597	try stream.print("{d}, {d})", .{ inst_data.line + 1, inst_data.column + 1 });
2598	2598	}
2599	2599
2600		fn writeDefer(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2600	fn writeDefer(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2601	2601	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].@"defer";
2602	2602	const body = self.code.bodySlice(inst_data.index, inst_data.len);
2603	2603	try self.writeBracedBody(stream, body);
2604	2604	try stream.writeByte(')');
2605	2605	}
2606	2606
2607		fn writeDeferErrCode(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2607	fn writeDeferErrCode(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2608	2608	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].defer_err_code;
2609	2609	const extra = self.code.extraData(Zir.Inst.DeferErrCode, inst_data.payload_index).data;
2610	2610
...	...	@@ -2617,7 +2617,7 @@ const Writer = struct {
2617	2617	try stream.writeByte(')');
2618	2618	}
2619	2619
2620		fn writeDeclaration(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2620	fn writeDeclaration(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2621	2621	const decl = self.code.getDeclaration(inst);
2622	2622
2623	2623	const prev_parent_decl_node = self.parent_decl_node;
...	...	@@ -2673,26 +2673,26 @@ const Writer = struct {
2673	2673	try self.writeSrcNode(stream, .zero);
2674	2674	}
2675	2675
2676		fn writeClosureGet(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	2676	fn writeClosureGet(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
2677	2677	try stream.print("{d})) ", .{extended.small});
2678	2678	const src_node: Ast.Node.Offset = @enumFromInt(@as(i32, @bitCast(extended.operand)));
2679	2679	try self.writeSrcNode(stream, src_node);
2680	2680	}
2681	2681
2682		fn writeBuiltinValue(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	2682	fn writeBuiltinValue(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
2683	2683	const val: Zir.Inst.BuiltinValue = @enumFromInt(extended.small);
2684	2684	try stream.print("{s})) ", .{@tagName(val)});
2685	2685	const src_node: Ast.Node.Offset = @enumFromInt(@as(i32, @bitCast(extended.operand)));
2686	2686	try self.writeSrcNode(stream, src_node);
2687	2687	}
2688	2688
2689		fn writeInplaceArithResultTy(self: Writer, stream: std.io.Writer, extended: Zir.Inst.Extended.InstData) !void {
	2689	fn writeInplaceArithResultTy(self: Writer, stream: std.Io.Writer, extended: Zir.Inst.Extended.InstData) !void {
2690	2690	const op: Zir.Inst.InplaceOp = @enumFromInt(extended.small);
2691	2691	try self.writeInstRef(stream, @enumFromInt(extended.operand));
2692	2692	try stream.print(", {s}))", .{@tagName(op)});
2693	2693	}
2694	2694
2695		fn writeInstRef(self: Writer, stream: std.io.Writer, ref: Zir.Inst.Ref) !void {
	2695	fn writeInstRef(self: Writer, stream: std.Io.Writer, ref: Zir.Inst.Ref) !void {
2696	2696	if (ref == .none) {
2697	2697	return stream.writeAll(".none");
2698	2698	} else if (ref.toIndex()) \|i\| {
...	...	@@ -2703,12 +2703,12 @@ const Writer = struct {
2703	2703	}
2704	2704	}
2705	2705
2706		fn writeInstIndex(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2706	fn writeInstIndex(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2707	2707	_ = self;
2708	2708	return stream.print("%{d}", .{@intFromEnum(inst)});
2709	2709	}
2710	2710
2711		fn writeCaptures(self: Writer, stream: std.io.Writer, extra_index: usize, captures_len: u32) !usize {
	2711	fn writeCaptures(self: Writer, stream: std.Io.Writer, extra_index: usize, captures_len: u32) !usize {
2712	2712	if (captures_len == 0) {
2713	2713	try stream.writeAll("{}");
2714	2714	return extra_index;
...	...	@@ -2728,7 +2728,7 @@ const Writer = struct {
2728	2728	return extra_index + 2 * captures_len;
2729	2729	}
2730	2730
2731		fn writeCapture(self: Writer, stream: std.io.Writer, capture: Zir.Inst.Capture) !void {
	2731	fn writeCapture(self: Writer, stream: std.Io.Writer, capture: Zir.Inst.Capture) !void {
2732	2732	switch (capture.unwrap()) {
2733	2733	.nested => \|i\| return stream.print("[{d}]", .{i}),
2734	2734	.instruction => \|inst\| return self.writeInstIndex(stream, inst),
...	...	@@ -2747,7 +2747,7 @@ const Writer = struct {
2747	2747
2748	2748	fn writeOptionalInstRef(
2749	2749	self: *Writer,
2750		stream: *std.io.Writer,
	2750	stream: *std.Io.Writer,
2751	2751	prefix: []const u8,
2752	2752	inst: Zir.Inst.Ref,
2753	2753	) !void {
...	...	@@ -2758,7 +2758,7 @@ const Writer = struct {
2758	2758
2759	2759	fn writeOptionalInstRefOrBody(
2760	2760	self: *Writer,
2761		stream: *std.io.Writer,
	2761	stream: *std.Io.Writer,
2762	2762	prefix: []const u8,
2763	2763	ref: Zir.Inst.Ref,
2764	2764	body: []const Zir.Inst.Index,
...	...	@@ -2776,7 +2776,7 @@ const Writer = struct {
2776	2776
2777	2777	fn writeFlag(
2778	2778	self: *Writer,
2779		stream: *std.io.Writer,
	2779	stream: *std.Io.Writer,
2780	2780	name: []const u8,
2781	2781	flag: bool,
2782	2782	) !void {
...	...	@@ -2785,7 +2785,7 @@ const Writer = struct {
2785	2785	try stream.writeAll(name);
2786	2786	}
2787	2787
2788		fn writeSrcNode(self: Writer, stream: std.io.Writer, src_node: Ast.Node.Offset) !void {
	2788	fn writeSrcNode(self: Writer, stream: std.Io.Writer, src_node: Ast.Node.Offset) !void {
2789	2789	const tree = self.tree orelse return;
2790	2790	const abs_node = src_node.toAbsolute(self.parent_decl_node);
2791	2791	const src_span = tree.nodeToSpan(abs_node);
...	...	@@ -2797,7 +2797,7 @@ const Writer = struct {
2797	2797	});
2798	2798	}
2799	2799
2800		fn writeSrcTok(self: Writer, stream: std.io.Writer, src_tok: Ast.TokenOffset) !void {
	2800	fn writeSrcTok(self: Writer, stream: std.Io.Writer, src_tok: Ast.TokenOffset) !void {
2801	2801	const tree = self.tree orelse return;
2802	2802	const abs_tok = src_tok.toAbsolute(tree.firstToken(self.parent_decl_node));
2803	2803	const span_start = tree.tokenStart(abs_tok);
...	...	@@ -2810,7 +2810,7 @@ const Writer = struct {
2810	2810	});
2811	2811	}
2812	2812
2813		fn writeSrcTokAbs(self: Writer, stream: std.io.Writer, src_tok: Ast.TokenIndex) !void {
	2813	fn writeSrcTokAbs(self: Writer, stream: std.Io.Writer, src_tok: Ast.TokenIndex) !void {
2814	2814	const tree = self.tree orelse return;
2815	2815	const span_start = tree.tokenStart(src_tok);
2816	2816	const span_end = span_start + @as(u32, @intCast(tree.tokenSlice(src_tok).len));
...	...	@@ -2822,15 +2822,15 @@ const Writer = struct {
2822	2822	});
2823	2823	}
2824	2824
2825		fn writeBracedDecl(self: Writer, stream: std.io.Writer, body: []const Zir.Inst.Index) !void {
	2825	fn writeBracedDecl(self: Writer, stream: std.Io.Writer, body: []const Zir.Inst.Index) !void {
2826	2826	try self.writeBracedBodyConditional(stream, body, self.recurse_decls);
2827	2827	}
2828	2828
2829		fn writeBracedBody(self: Writer, stream: std.io.Writer, body: []const Zir.Inst.Index) !void {
	2829	fn writeBracedBody(self: Writer, stream: std.Io.Writer, body: []const Zir.Inst.Index) !void {
2830	2830	try self.writeBracedBodyConditional(stream, body, self.recurse_blocks);
2831	2831	}
2832	2832
2833		fn writeBracedBodyConditional(self: Writer, stream: std.io.Writer, body: []const Zir.Inst.Index, enabled: bool) !void {
	2833	fn writeBracedBodyConditional(self: Writer, stream: std.Io.Writer, body: []const Zir.Inst.Index, enabled: bool) !void {
2834	2834	if (body.len == 0) {
2835	2835	try stream.writeAll("{}");
2836	2836	} else if (enabled) {
...	...	@@ -2859,7 +2859,7 @@ const Writer = struct {
2859	2859	}
2860	2860	}
2861	2861
2862		fn writeBody(self: Writer, stream: std.io.Writer, body: []const Zir.Inst.Index) !void {
	2862	fn writeBody(self: Writer, stream: std.Io.Writer, body: []const Zir.Inst.Index) !void {
2863	2863	for (body) \|inst\| {
2864	2864	try stream.splatByteAll(' ', self.indent);
2865	2865	try stream.print("%{d} ", .{@intFromEnum(inst)});
...	...	@@ -2868,7 +2868,7 @@ const Writer = struct {
2868	2868	}
2869	2869	}
2870	2870
2871		fn writeImport(self: Writer, stream: std.io.Writer, inst: Zir.Inst.Index) !void {
	2871	fn writeImport(self: Writer, stream: std.Io.Writer, inst: Zir.Inst.Index) !void {
2872	2872	const inst_data = self.code.instructions.items(.data)[@intFromEnum(inst)].pl_tok;
2873	2873	const extra = self.code.extraData(Zir.Inst.Import, inst_data.payload_index).data;
2874	2874	try self.writeInstRef(stream, extra.res_ty);

src/print_zoir.zig+1-1

...	...	@@ -113,4 +113,4 @@ const std = @import("std");
113	113	const assert = std.debug.assert;
114	114	const Allocator = std.mem.Allocator;
115	115	const Zoir = std.zig.Zoir;
116		const Writer = std.io.Writer;
	116	const Writer = std.Io.Writer;

test/src/Cases.zig+1-1

...	...	@@ -386,7 +386,7 @@ fn addFromDirInner(
386	386	current_file.* = filename;
387	387
388	388	const max_file_size = 10 * 1024 * 1024;
389		const src = try iterable_dir.readFileAllocOptions(ctx.arena, filename, max_file_size, null, .@"1", 0);
	389	const src = try iterable_dir.readFileAllocOptions(filename, ctx.arena, .limited(max_file_size), .@"1", 0);
390	390
391	391	// Parse the manifest
392	392	var manifest = try TestManifest.parse(ctx.arena, src);

test/src/check-stack-trace.zig+1-1

...	...	@@ -13,7 +13,7 @@ pub fn main() !void {
13	13	const input_path = args[1];
14	14	const optimize_mode_text = args[2];
15	15
16		const input_bytes = try std.fs.cwd().readFileAlloc(arena, input_path, 5 * 1024 * 1024);
	16	const input_bytes = try std.fs.cwd().readFileAlloc(input_path, arena, .limited(5 * 1024 * 1024));
17	17	const optimize_mode = std.meta.stringToEnum(std.builtin.OptimizeMode, optimize_mode_text).?;
18	18
19	19	var stderr = input_bytes;

test/standalone/child_process/main.zig+2-1

...	...	@@ -32,7 +32,8 @@ pub fn main() !void {
32	32
33	33	const hello_stdout = "hello from stdout";
34	34	var buf: [hello_stdout.len]u8 = undefined;
35		const n = try child.stdout.?.deprecatedReader().readAll(&buf);
	35	var stdout_reader = child.stdout.?.readerStreaming(&.{});
	36	const n = try stdout_reader.interface.readSliceShort(&buf);
36	37	if (!std.mem.eql(u8, buf[0..n], hello_stdout)) {
37	38	testError("child stdout: '{s}'; want '{s}'", .{ buf[0..n], hello_stdout });
38	39	}

test/standalone/cmakedefine/check.zig+2-2

...	...	@@ -9,8 +9,8 @@ pub fn main() !void {
9	9	const actual_path = args[1];
10	10	const expected_path = args[2];
11	11
12		const actual = try std.fs.cwd().readFileAlloc(arena, actual_path, 1024 * 1024);
13		const expected = try std.fs.cwd().readFileAlloc(arena, expected_path, 1024 * 1024);
	12	const actual = try std.fs.cwd().readFileAlloc(actual_path, arena, .limited(1024 * 1024));
	13	const expected = try std.fs.cwd().readFileAlloc(expected_path, arena, .limited(1024 * 1024));
14	14
15	15	// The actual output starts with a comment which we should strip out before comparing.
16	16	const comment_str = "/* This file was generated by ConfigHeader using the Zig Build System. */\n";

test/standalone/entry_point/check_differ.zig+2-2

...	...	@@ -6,8 +6,8 @@ pub fn main() !void {
6	6	const args = try std.process.argsAlloc(arena);
7	7	if (args.len != 3) return error.BadUsage; // usage: 'check_differ <path a> <path b>'
8	8
9		const contents_1 = try std.fs.cwd().readFileAlloc(arena, args[1], 1024 * 1024 * 64); // 64 MiB ought to be plenty
10		const contents_2 = try std.fs.cwd().readFileAlloc(arena, args[2], 1024 * 1024 * 64); // 64 MiB ought to be plenty
	9	const contents_1 = try std.fs.cwd().readFileAlloc(args[1], arena, .limited(1024 * 1024 * 64)); // 64 MiB ought to be plenty
	10	const contents_2 = try std.fs.cwd().readFileAlloc(args[2], arena, .limited(1024 * 1024 * 64)); // 64 MiB ought to be plenty
11	11
12	12	if (std.mem.eql(u8, contents_1, contents_2)) {
13	13	return error.FilesMatch;

test/standalone/simple/cat/main.zig+1-2

...	...	@@ -1,5 +1,4 @@
1	1	const std = @import("std");
2		const io = std.io;
3	2	const fs = std.fs;
4	3	const mem = std.mem;
5	4	const warn = std.log.warn;
...	...	@@ -16,7 +15,7 @@ pub fn main() !void {
16	15	var catted_anything = false;
17	16	var stdout_writer = std.fs.File.stdout().writerStreaming(&.{});
18	17	const stdout = &stdout_writer.interface;
19		var stdin_reader = std.fs.File.stdin().reader(&.{});
	18	var stdin_reader = std.fs.File.stdin().readerStreaming(&.{});
20	19
21	20	const cwd = fs.cwd();
22	21

tools/docgen.zig+4-5

...	...	@@ -77,7 +77,8 @@ pub fn main() !void {
77	77	var code_dir = try fs.cwd().openDir(code_dir_path, .{});
78	78	defer code_dir.close();
79	79
80		const input_file_bytes = try in_file.deprecatedReader().readAllAlloc(arena, max_doc_file_size);
	80	var in_file_reader = in_file.reader(&.{});
	81	const input_file_bytes = try in_file_reader.interface.allocRemaining(arena, .limited(max_doc_file_size));
81	82
82	83	var tokenizer = Tokenizer.init(input_path, input_file_bytes);
83	84	var toc = try genToc(arena, &tokenizer);
...	...	@@ -1039,10 +1040,8 @@ fn genHtml(
1039	1040	});
1040	1041	defer allocator.free(out_basename);
1041	1042
1042		const contents = code_dir.readFileAlloc(allocator, out_basename, std.math.maxInt(u32)) catch \|err\| {
1043		return parseError(tokenizer, code.token, "unable to open '{s}': {s}", .{
1044		out_basename, @errorName(err),
1045		});
	1043	const contents = code_dir.readFileAlloc(out_basename, allocator, .limited(std.math.maxInt(u32))) catch \|err\| {
	1044	return parseError(tokenizer, code.token, "unable to open '{s}': {t}", .{ out_basename, err });
1046	1045	};
1047	1046	defer allocator.free(contents);
1048	1047

tools/doctest.zig+1-1

...	...	@@ -70,7 +70,7 @@ pub fn main() !void {
70	70	const zig_path = opt_zig orelse fatal("missing zig compiler path (--zig)", .{});
71	71	const cache_root = opt_cache_root orelse fatal("missing cache root path (--cache-root)", .{});
72	72
73		const source_bytes = try fs.cwd().readFileAlloc(arena, input_path, std.math.maxInt(u32));
	73	const source_bytes = try fs.cwd().readFileAlloc(input_path, arena, .limited(std.math.maxInt(u32)));
74	74	const code = try parseManifest(arena, source_bytes);
75	75	const source = stripManifest(source_bytes);
76	76

tools/dump-cov.zig+2-3

...	...	@@ -38,10 +38,9 @@ pub fn main() !void {
38	38	defer debug_info.deinit(gpa);
39	39
40	40	const cov_bytes = cov_path.root_dir.handle.readFileAllocOptions(
41		arena,
42	41	cov_path.sub_path,
43		1 << 30,
44		null,
	42	arena,
	43	.limited(1 << 30),
45	44	.of(SeenPcsHeader),
46	45	null,
47	46	) catch \|err\| {

tools/fetch_them_macos_headers.zig+3-3

...	...	@@ -1,6 +1,5 @@
1	1	const std = @import("std");
2	2	const fs = std.fs;
3		const io = std.io;
4	3	const mem = std.mem;
5	4	const process = std.process;
6	5	const assert = std.debug.assert;
...	...	@@ -93,7 +92,7 @@ pub fn main() anyerror!void {
93	92
94	93	var sdk_dir = try std.fs.cwd().openDir(sysroot_path, .{});
95	94	defer sdk_dir.close();
96		const sdk_info = try sdk_dir.readFileAlloc(allocator, "SDKSettings.json", std.math.maxInt(u32));
	95	const sdk_info = try sdk_dir.readFileAlloc("SDKSettings.json", allocator, .limited(std.math.maxInt(u32)));
97	96
98	97	const parsed_json = try std.json.parseFromSlice(struct {
99	98	DefaultProperties: struct { MACOSX_DEPLOYMENT_TARGET: []const u8 },
...	...	@@ -198,7 +197,8 @@ fn fetchTarget(
198	197	var dirs = std.StringHashMap(fs.Dir).init(arena);
199	198	try dirs.putNoClobber(".", dest_dir);
200	199
201		const headers_list_str = try headers_list_file.deprecatedReader().readAllAlloc(arena, std.math.maxInt(usize));
	200	var headers_list_file_reader = headers_list_file.reader(&.{});
	201	const headers_list_str = try headers_list_file_reader.interface.allocRemaining(arena, .unlimited);
202	202	const prefix = "/usr/include";
203	203
204	204	var it = mem.splitScalar(u8, headers_list_str, '\n');

tools/gen_spirv_spec.zig+15-15

...	...	@@ -136,7 +136,7 @@ fn readExtRegistry(exts: *std.array_list.Managed(Extension), dir: std.fs.Dir, su
136	136	}
137	137
138	138	fn readRegistry(comptime RegistryType: type, dir: std.fs.Dir, path: []const u8) !RegistryType {
139		const spec = try dir.readFileAlloc(allocator, path, std.math.maxInt(usize));
	139	const spec = try dir.readFileAlloc(path, allocator, .unlimited);
140	140	// Required for json parsing.
141	141	// TODO: ALI
142	142	@setEvalBranchQuota(10000);
...	...	@@ -189,7 +189,7 @@ fn tagPriorityScore(tag: []const u8) usize {
189	189	}
190	190
191	191	fn render(
192		writer: *std.io.Writer,
	192	writer: *std.Io.Writer,
193	193	registry: CoreRegistry,
194	194	extensions: []const Extension,
195	195	) !void {
...	...	@@ -214,7 +214,7 @@ fn render(
214	214	\\ none,
215	215	\\ _,
216	216	\\
217		\\ pub fn format(self: Id, writer: *std.io.Writer) std.io.Writer.Error!void {
	217	\\ pub fn format(self: Id, writer: *std.Io.Writer) std.Io.Writer.Error!void {
218	218	\\ switch (self) {
219	219	\\ .none => try writer.writeAll("(none)"),
220	220	\\ else => try writer.print("%{d}", .{@intFromEnum(self)}),
...	...	@@ -327,7 +327,7 @@ fn render(
327	327	}
328	328
329	329	fn renderInstructionSet(
330		writer: *std.io.Writer,
	330	writer: *std.Io.Writer,
331	331	core: CoreRegistry,
332	332	extensions: []const Extension,
333	333	all_operand_kinds: OperandKindMap,
...	...	@@ -362,7 +362,7 @@ fn renderInstructionSet(
362	362	}
363	363
364	364	fn renderInstructionsCase(
365		writer: *std.io.Writer,
	365	writer: *std.Io.Writer,
366	366	set_name: []const u8,
367	367	instructions: []const Instruction,
368	368	all_operand_kinds: OperandKindMap,
...	...	@@ -409,7 +409,7 @@ fn renderInstructionsCase(
409	409	);
410	410	}
411	411
412		fn renderClass(writer: *std.io.Writer, instructions: []const Instruction) !void {
	412	fn renderClass(writer: *std.Io.Writer, instructions: []const Instruction) !void {
413	413	var class_map = std.StringArrayHashMap(void).init(allocator);
414	414
415	415	for (instructions) \|inst\| {
...	...	@@ -427,7 +427,7 @@ fn renderClass(writer: *std.io.Writer, instructions: []const Instruction) !void
427	427	const Formatter = struct {
428	428	data: []const u8,
429	429
430		fn format(f: Formatter, writer: *std.Io.Writer) std.io.Writer.Error!void {
	430	fn format(f: Formatter, writer: *std.Io.Writer) std.Io.Writer.Error!void {
431	431	var id_buf: [128]u8 = undefined;
432	432	var fw: std.Io.Writer = .fixed(&id_buf);
433	433	for (f.data, 0..) \|c, i\| {
...	...	@@ -457,7 +457,7 @@ fn formatId(identifier: []const u8) std.fmt.Alt(Formatter, Formatter.format) {
457	457	return .{ .data = .{ .data = identifier } };
458	458	}
459	459
460		fn renderOperandKind(writer: *std.io.Writer, operands: []const OperandKind) !void {
	460	fn renderOperandKind(writer: *std.Io.Writer, operands: []const OperandKind) !void {
461	461	try writer.writeAll(
462	462	\\pub const OperandKind = enum {
463	463	\\ opcode,
...	...	@@ -513,7 +513,7 @@ fn renderOperandKind(writer: *std.io.Writer, operands: []const OperandKind) !voi
513	513	try writer.writeAll("};\n}\n};\n");
514	514	}
515	515
516		fn renderEnumerant(writer: *std.io.Writer, enumerant: Enumerant) !void {
	516	fn renderEnumerant(writer: *std.Io.Writer, enumerant: Enumerant) !void {
517	517	try writer.print(".{{.name = \"{s}\", .value = ", .{enumerant.enumerant});
518	518	switch (enumerant.value) {
519	519	.bitflag => \|flag\| try writer.writeAll(flag),
...	...	@@ -530,7 +530,7 @@ fn renderEnumerant(writer: *std.io.Writer, enumerant: Enumerant) !void {
530	530	}
531	531
532	532	fn renderOpcodes(
533		writer: *std.io.Writer,
	533	writer: *std.Io.Writer,
534	534	opcode_type_name: []const u8,
535	535	want_operands: bool,
536	536	instructions: []const Instruction,
...	...	@@ -629,7 +629,7 @@ fn renderOpcodes(
629	629	}
630	630
631	631	fn renderOperandKinds(
632		writer: *std.io.Writer,
	632	writer: *std.Io.Writer,
633	633	kinds: []const OperandKind,
634	634	extended_structs: ExtendedStructSet,
635	635	) !void {
...	...	@@ -643,7 +643,7 @@ fn renderOperandKinds(
643	643	}
644	644
645	645	fn renderValueEnum(
646		writer: *std.io.Writer,
	646	writer: *std.Io.Writer,
647	647	enumeration: OperandKind,
648	648	extended_structs: ExtendedStructSet,
649	649	) !void {
...	...	@@ -721,7 +721,7 @@ fn renderValueEnum(
721	721	}
722	722
723	723	fn renderBitEnum(
724		writer: *std.io.Writer,
	724	writer: *std.Io.Writer,
725	725	enumeration: OperandKind,
726	726	extended_structs: ExtendedStructSet,
727	727	) !void {
...	...	@@ -804,7 +804,7 @@ fn renderBitEnum(
804	804	}
805	805
806	806	fn renderOperand(
807		writer: *std.io.Writer,
	807	writer: *std.Io.Writer,
808	808	kind: enum {
809	809	@"union",
810	810	instruction,
...	...	@@ -888,7 +888,7 @@ fn renderOperand(
888	888	try writer.writeAll(",\n");
889	889	}
890	890
891		fn renderFieldName(writer: *std.io.Writer, operands: []const Operand, field_index: usize) !void {
	891	fn renderFieldName(writer: *std.Io.Writer, operands: []const Operand, field_index: usize) !void {
892	892	const operand = operands[field_index];
893	893
894	894	derive_from_kind: {

tools/gen_stubs.zig+2-3

...	...	@@ -299,10 +299,9 @@ pub fn main() !void {
299	299
300	300	// Read the ELF header.
301	301	const elf_bytes = build_all_dir.readFileAllocOptions(
302		arena,
303	302	libc_so_path,
304		100 * 1024 * 1024,
305		1 * 1024 * 1024,
	303	arena,
	304	.limited(100 * 1024 * 1024),
306	305	.of(elf.Elf64_Ehdr),
307	306	null,
308	307	) catch \|err\| {

tools/generate_JSONTestSuite.zig+1-1

...	...	@@ -32,7 +32,7 @@ pub fn main() !void {
32	32	}).lessThan);
33	33
34	34	for (names.items) \|name\| {
35		const contents = try std.fs.cwd().readFileAlloc(allocator, name, 250001);
	35	const contents = try std.fs.cwd().readFileAlloc(name, allocator, .limited(250001));
36	36	try output.writeAll("test ");
37	37	try writeString(output, name);
38	38	try output.writeAll(" {\n try ");

tools/generate_linux_syscalls.zig+1-1

...	...	@@ -248,7 +248,7 @@ pub fn main() !void {
248	248	try Io.Writer.flush(stdout);
249	249	}
250	250
251		fn usage(w: *std.io.Writer, arg0: []const u8) std.io.Writer.Error!void {
	251	fn usage(w: *std.Io.Writer, arg0: []const u8) std.Io.Writer.Error!void {
252	252	try w.print(
253	253	\\Usage: {s} /path/to/zig /path/to/linux
254	254	\\Alternative Usage: zig run /path/to/git/zig/tools/generate_linux_syscalls.zig -- /path/to/zig /path/to/linux

tools/incr-check.zig+2-2

...	...	@@ -52,7 +52,7 @@ pub fn main() !void {
52	52	const zig_exe = opt_zig_exe orelse fatal("missing path to zig\n{s}", .{usage});
53	53	const input_file_name = opt_input_file_name orelse fatal("missing input file\n{s}", .{usage});
54	54
55		const input_file_bytes = try std.fs.cwd().readFileAlloc(arena, input_file_name, std.math.maxInt(u32));
	55	const input_file_bytes = try std.fs.cwd().readFileAlloc(input_file_name, arena, .limited(std.math.maxInt(u32)));
56	56	const case = try Case.parse(arena, input_file_bytes);
57	57
58	58	// Check now: if there are any targets using the `cbe` backend, we need the lib dir.
...	...	@@ -226,7 +226,7 @@ const Eval = struct {
226	226	cc_child_args: *std.ArrayListUnmanaged([]const u8),
227	227
228	228	const StreamEnum = enum { stdout, stderr };
229		const Poller = std.io.Poller(StreamEnum);
	229	const Poller = std.Io.Poller(StreamEnum);
230	230
231	231	/// Currently this function assumes the previous updates have already been written.
232	232	fn write(eval: *Eval, update: Case.Update) void {

tools/migrate_langref.zig+2-2

...	...	@@ -1,6 +1,5 @@
1	1	const std = @import("std");
2	2	const builtin = @import("builtin");
3		const io = std.io;
4	3	const fs = std.fs;
5	4	const print = std.debug.print;
6	5	const mem = std.mem;
...	...	@@ -29,7 +28,8 @@ pub fn main() !void {
29	28	var out_dir = try fs.cwd().openDir(fs.path.dirname(output_file).?, .{});
30	29	defer out_dir.close();
31	30
32		const input_file_bytes = try in_file.deprecatedReader().readAllAlloc(arena, std.math.maxInt(u32));
	31	var in_file_reader = in_file.reader(&.{});
	32	const input_file_bytes = try in_file_reader.interface.allocRemaining(arena, .unlimited);
33	33
34	34	var tokenizer = Tokenizer.init(input_file, input_file_bytes);
35	35

tools/process_headers.zig+1-1

...	...	@@ -254,7 +254,7 @@ pub fn main() !void {
254	254	.file, .sym_link => {
255	255	const rel_path = try std.fs.path.relative(allocator, target_include_dir, full_path);
256	256	const max_size = 2 * 1024 * 1024 * 1024;
257		const raw_bytes = try std.fs.cwd().readFileAlloc(allocator, full_path, max_size);
	257	const raw_bytes = try std.fs.cwd().readFileAlloc(full_path, allocator, .limited(max_size));
258	258	const trimmed = std.mem.trim(u8, raw_bytes, " \r\n\t");
259	259	total_bytes += raw_bytes.len;
260	260	const hash = try allocator.alloc(u8, 32);

tools/update-linux-headers.zig+1-1

...	...	@@ -206,7 +206,7 @@ pub fn main() !void {
206	206	.file => {
207	207	const rel_path = try std.fs.path.relative(arena, target_include_dir, full_path);
208	208	const max_size = 2 * 1024 * 1024 * 1024;
209		const raw_bytes = try std.fs.cwd().readFileAlloc(arena, full_path, max_size);
	209	const raw_bytes = try std.fs.cwd().readFileAlloc(full_path, arena, .limited(max_size));
210	210	const trimmed = std.mem.trim(u8, raw_bytes, " \r\n\t");
211	211	total_bytes += raw_bytes.len;
212	212	const hash = try arena.alloc(u8, 32);

tools/update_clang_options.zig+1-1

...	...	@@ -965,7 +965,7 @@ fn printUsageAndExit(arg0: []const u8) noreturn {
965	965	std.process.exit(1);
966	966	}
967	967
968		fn printUsage(w: *std.io.Writer, arg0: []const u8) std.io.Writer.Error!void {
	968	fn printUsage(w: *std.Io.Writer, arg0: []const u8) std.Io.Writer.Error!void {
969	969	try w.print(
970	970	\\Usage: {s} /path/to/llvm-tblgen /path/to/git/llvm/llvm-project
971	971	\\Alternative Usage: zig run /path/to/git/zig/tools/update_clang_options.zig -- /path/to/llvm-tblgen /path/to/git/llvm/llvm-project

tools/update_crc_catalog.zig+1-1

...	...	@@ -194,7 +194,7 @@ fn printUsageAndExit(arg0: []const u8) noreturn {
194	194	std.process.exit(1);
195	195	}
196	196
197		fn printUsage(w: *std.io.Writer, arg0: []const u8) std.io.Writer.Error!void {
	197	fn printUsage(w: *std.Io.Writer, arg0: []const u8) std.Io.Writer.Error!void {
198	198	return w.print(
199	199	\\Usage: {s} /path/git/zig
200	200	\\

tools/update_glibc.zig+4-4

...	...	@@ -116,9 +116,9 @@ pub fn main() !void {
116	116	const max_file_size = 10 * 1024 * 1024;
117	117
118	118	const generic_glibc_contents = generic_glibc_dir.readFileAlloc(
119		arena,
120	119	entry.path,
121		max_file_size,
	120	arena,
	121	.limited(max_file_size),
122	122	) catch \|err\| switch (err) {
123	123	error.FileNotFound => continue,
124	124	else => \|e\| fatal("unable to load '{s}/include/{s}': {s}", .{
...	...	@@ -126,9 +126,9 @@ pub fn main() !void {
126	126	}),
127	127	};
128	128	const glibc_include_contents = include_dir.readFileAlloc(
129		arena,
130	129	entry.path,
131		max_file_size,
	130	arena,
	131	.limited(max_file_size),
132	132	) catch \|err\| {
133	133	fatal("unable to load '{s}/include/{s}': {s}", .{
134	134	dest_dir_path, entry.path, @errorName(err),

author	Andrew Kelley <andrew@ziglang.org> 2025-08-30 12:43:52-07:00
committer	GitHub <noreply@github.com> 2025-08-30 12:43:52-07:00
log	b7104231af68c26b850325748a64f15119a2dd69
tree	c83483ec36ae96af5cf429cf8129336fa09ef256
parent	151314346d7c4ed4da13a0a0146e1016c9ca5dd7
parent	31a0c2a36a09fd3cd82f061b090fc12c3239dfb1
signature	Signed by PGP key B5690EEEBB952194

Merge pull request #25077 from ziglang/GenericReader