Commit e6749167feb6841b3a81abb3863025d74dae9b7d | zig

author	Isaac Freund <mail@isaacfreund.com> 2026-07-06 15:54:25+02:00
committer	Isaac Freund <mail@isaacfreund.com> 2026-07-08 11:49:01+02:00
log	e6749167feb6841b3a81abb3863025d74dae9b7d
tree	481cc5a54e4087191a539264c1c40f530875c171
parent	b0738ef3e0354765b5aa1713d6313c8606c52f41
signature	Commit is signed but in an unrecognized format.

2 files changed, 16 insertions(+), 2 deletions(-)

lib/std/zig/parser_generated_oracle.zig+5-1

...	...	@@ -10,7 +10,7 @@ const max_depth = 5;
10	10	/// the grammar.
11	11	/// Returns error.MaxDepth if more than `max_depth` levels of recursion/iteration are reached.
12	12	pub fn parse(source: []const u8) Error!bool {
13		var p: Parser = .{ .source = source, .i = 0, .expr_depth = 1 };
	13	var p: Parser = .{ .source = source, .i = 0, .expr_depth = 1, .block_depth = 1 };
14	14	return p.parseRoot();
15	15	}
16	16
...	...	@@ -18,6 +18,7 @@ const Parser = struct {
18	18	source: []const u8,
19	19	i: usize,
20	20	expr_depth: usize,
	21	block_depth: usize,
21	22	pub fn parseRoot(p: *Parser) Error!bool {
22	23	return blk_0: {
23	24	const pos_0 = p.i;
...	...	@@ -859,6 +860,9 @@ const Parser = struct {
859	860	};
860	861	}
861	862	pub fn parseBlock(p: *Parser) Error!bool {
	863	if (p.block_depth >= max_depth) return error.MaxDepth;
	864	p.block_depth += 1;
	865	defer p.block_depth -= 1;
862	866	return blk_0: {
863	867	const pos_0 = p.i;
864	868	if (try p.parseLBRACE() and blk_1: {

tools/gen_parser_oracle.zig+11-1

...	...	@@ -89,7 +89,7 @@ const Generator = struct {
89	89	\\/// the grammar.
90	90	\\/// Returns error.MaxDepth if more than `max_depth` levels of recursion/iteration are reached.
91	91	\\pub fn parse(source: []const u8) Error!bool {
92		\\ var p: Parser = .{ .source = source, .i = 0, .expr_depth = 1 };
	92	\\ var p: Parser = .{ .source = source, .i = 0, .expr_depth = 1, .block_depth = 1 };
93	93	\\ return p.parseRoot();
94	94	\\}
95	95	\\
...	...	@@ -97,6 +97,7 @@ const Generator = struct {
97	97	\\ source: []const u8,
98	98	\\ i: usize,
99	99	\\ expr_depth: usize,
	100	\\ block_depth: usize,
100	101	\\
101	102	);
102	103	for (g.p.getExtra(node.get(g.p).root)) \|def\| {
...	...	@@ -110,6 +111,7 @@ const Generator = struct {
110	111	const id = def.id.get(g.p).id;
111	112	assert(g.suffix == 0);
112	113	try g.w.print("pub fn parse{s}(p: *Parser) Error!bool {{", .{id});
	114	// The grammar can infinitely recurse through the Expr rule
113	115	if (mem.eql(u8, "Expr", id)) {
114	116	try g.w.print(
115	117	\\if (p.expr_depth >= max_depth) return error.MaxDepth;
...	...	@@ -117,6 +119,14 @@ const Generator = struct {
117	119	\\defer p.expr_depth -= 1;
118	120	, .{});
119	121	}
	122	// The grammar can infinitely recurse through the Block rule
	123	if (mem.eql(u8, "Block", id)) {
	124	try g.w.print(
	125	\\if (p.block_depth >= max_depth) return error.MaxDepth;
	126	\\p.block_depth += 1;
	127	\\defer p.block_depth -= 1;
	128	, .{});
	129	}
120	130	try g.w.writeAll("return ");
121	131	try g.genExpr(def.expr);
122	132	try g.w.writeAll(";}");