authorgravatar for robin@voetter.nlRobin Voetter <robin@voetter.nl> 2021-11-22 03:32:28+01:00
committergravatar for robin@voetter.nlRobin Voetter <robin@voetter.nl> 2021-11-22 04:36:57+01:00
log2b589d71fbcacb2e8bc8746dd4b675e57b3a53df
tree83fda2aa57b2f48c958a522a9393c4ba900943ef
parentcb248898ab41378c2e9bcf94d05c7c42577a7bab

stage2: move some tests which are now passing

9 files changed, 275 insertions(+), 275 deletions(-)

test/behavior.zig+1-1
...@@ -58,6 +58,7 @@ test {...@@ -58,6 +58,7 @@ test {
58 _ = @import("behavior/floatop.zig");58 _ = @import("behavior/floatop.zig");
59 _ = @import("behavior/fn.zig");59 _ = @import("behavior/fn.zig");
60 _ = @import("behavior/for.zig");60 _ = @import("behavior/for.zig");
61 _ = @import("behavior/generics_llvm.zig");
61 _ = @import("behavior/math.zig");62 _ = @import("behavior/math.zig");
62 _ = @import("behavior/maximum_minimum.zig");63 _ = @import("behavior/maximum_minimum.zig");
63 _ = @import("behavior/null_llvm.zig");64 _ = @import("behavior/null_llvm.zig");
...@@ -145,7 +146,6 @@ test {...@@ -145,7 +146,6 @@ test {
145 _ = @import("behavior/fn_delegation.zig");146 _ = @import("behavior/fn_delegation.zig");
146 _ = @import("behavior/fn_in_struct_in_comptime.zig");147 _ = @import("behavior/fn_in_struct_in_comptime.zig");
147 _ = @import("behavior/for_stage1.zig");148 _ = @import("behavior/for_stage1.zig");
148 _ = @import("behavior/generics_stage1.zig");
149 _ = @import("behavior/if_stage1.zig");149 _ = @import("behavior/if_stage1.zig");
150 _ = @import("behavior/import.zig");150 _ = @import("behavior/import.zig");
151 _ = @import("behavior/incomplete_struct_param_tld.zig");151 _ = @import("behavior/incomplete_struct_param_tld.zig");
test/behavior/cast.zig+29
...@@ -266,3 +266,32 @@ test "array coersion to undefined at runtime" {...@@ -266,3 +266,32 @@ test "array coersion to undefined at runtime" {
266 array = undefined;266 array = undefined;
267 try expect(std.mem.eql(u8, &array, &undefined_val));267 try expect(std.mem.eql(u8, &array, &undefined_val));
268}268}
269
270test "implicitly cast from int to anyerror!?T" {
271 implicitIntLitToOptional();
272 comptime implicitIntLitToOptional();
273}
274fn implicitIntLitToOptional() void {
275 const f: ?i32 = 1;
276 _ = f;
277 const g: anyerror!?i32 = 1;
278 _ = g catch {};
279}
280
281test "return u8 coercing into ?u32 return type" {
282 const S = struct {
283 fn doTheTest() !void {
284 try expect(foo(123).? == 123);
285 }
286 fn foo(arg: u8) ?u32 {
287 return arg;
288 }
289 };
290 try S.doTheTest();
291 comptime try S.doTheTest();
292}
293
294test "cast from ?[*]T to ??[*]T" {
295 const a: ??[*]u8 = @as(?[*]u8, null);
296 try expect(a != null and a.? == null);
297}
test/behavior/cast_llvm.zig+132
...@@ -65,3 +65,135 @@ test "implicit ptr to *c_void" {...@@ -65,3 +65,135 @@ test "implicit ptr to *c_void" {
65 var c: *u32 = @ptrCast(*u32, ptr2.?);65 var c: *u32 = @ptrCast(*u32, ptr2.?);
66 try expect(c.* == 1);66 try expect(c.* == 1);
67}67}
68
69const A = struct {
70 a: i32,
71};
72test "return null from fn() anyerror!?&T" {
73 const a = returnNullFromOptionalTypeErrorRef();
74 const b = returnNullLitFromOptionalTypeErrorRef();
75 try expect((try a) == null and (try b) == null);
76}
77fn returnNullFromOptionalTypeErrorRef() anyerror!?*A {
78 const a: ?*A = null;
79 return a;
80}
81fn returnNullLitFromOptionalTypeErrorRef() anyerror!?*A {
82 return null;
83}
84
85test "peer type resolution: [0]u8 and []const u8" {
86 try expect(peerTypeEmptyArrayAndSlice(true, "hi").len == 0);
87 try expect(peerTypeEmptyArrayAndSlice(false, "hi").len == 1);
88 comptime {
89 try expect(peerTypeEmptyArrayAndSlice(true, "hi").len == 0);
90 try expect(peerTypeEmptyArrayAndSlice(false, "hi").len == 1);
91 }
92}
93fn peerTypeEmptyArrayAndSlice(a: bool, slice: []const u8) []const u8 {
94 if (a) {
95 return &[_]u8{};
96 }
97
98 return slice[0..1];
99}
100
101test "implicitly cast from [N]T to ?[]const T" {
102 try expect(mem.eql(u8, castToOptionalSlice().?, "hi"));
103 comptime try expect(mem.eql(u8, castToOptionalSlice().?, "hi"));
104}
105
106fn castToOptionalSlice() ?[]const u8 {
107 return "hi";
108}
109
110test "cast u128 to f128 and back" {
111 comptime try testCast128();
112 try testCast128();
113}
114
115fn testCast128() !void {
116 try expect(cast128Int(cast128Float(0x7fff0000000000000000000000000000)) == 0x7fff0000000000000000000000000000);
117}
118
119fn cast128Int(x: f128) u128 {
120 return @bitCast(u128, x);
121}
122
123fn cast128Float(x: u128) f128 {
124 return @bitCast(f128, x);
125}
126
127test "implicit cast from *[N]T to ?[*]T" {
128 var x: ?[*]u16 = null;
129 var y: [4]u16 = [4]u16{ 0, 1, 2, 3 };
130
131 x = &y;
132 try expect(std.mem.eql(u16, x.?[0..4], y[0..4]));
133 x.?[0] = 8;
134 y[3] = 6;
135 try expect(std.mem.eql(u16, x.?[0..4], y[0..4]));
136}
137
138test "implicit cast from *T to ?*c_void" {
139 var a: u8 = 1;
140 incrementVoidPtrValue(&a);
141 try std.testing.expect(a == 2);
142}
143
144fn incrementVoidPtrValue(value: ?*c_void) void {
145 @ptrCast(*u8, value.?).* += 1;
146}
147
148test "implicit cast *[0]T to E![]const u8" {
149 var x = @as(anyerror![]const u8, &[0]u8{});
150 try expect((x catch unreachable).len == 0);
151}
152
153var global_array: [4]u8 = undefined;
154test "cast from array reference to fn" {
155 const f = @ptrCast(fn () callconv(.C) void, &global_array);
156 try expect(@ptrToInt(f) == @ptrToInt(&global_array));
157}
158
159test "*const [N]null u8 to ?[]const u8" {
160 const S = struct {
161 fn doTheTest() !void {
162 var a = "Hello";
163 var b: ?[]const u8 = a;
164 try expect(mem.eql(u8, b.?, "Hello"));
165 }
166 };
167 try S.doTheTest();
168 comptime try S.doTheTest();
169}
170
171test "cast between [*c]T and ?[*:0]T on fn parameter" {
172 const S = struct {
173 const Handler = ?fn ([*c]const u8) callconv(.C) void;
174 fn addCallback(handler: Handler) void {
175 _ = handler;
176 }
177
178 fn myCallback(cstr: ?[*:0]const u8) callconv(.C) void {
179 _ = cstr;
180 }
181
182 fn doTheTest() void {
183 addCallback(myCallback);
184 }
185 };
186 S.doTheTest();
187}
188
189var global_struct: struct { f0: usize } = undefined;
190test "assignment to optional pointer result loc" {
191 var foo: struct { ptr: ?*c_void } = .{ .ptr = &global_struct };
192 try expect(foo.ptr.? == @ptrCast(*c_void, &global_struct));
193}
194
195test "cast between *[N]void and []void" {
196 var a: [4]void = undefined;
197 var b: []void = &a;
198 try expect(b.len == 4);
199}
test/behavior/cast_stage1.zig-159
...@@ -58,55 +58,6 @@ fn castToOptionalTypeError(z: i32) !void {...@@ -58,55 +58,6 @@ fn castToOptionalTypeError(z: i32) !void {
58 try expect((b catch unreachable).?.a == 1);58 try expect((b catch unreachable).?.a == 1);
59}59}
6060
61test "implicitly cast from int to anyerror!?T" {
62 implicitIntLitToOptional();
63 comptime implicitIntLitToOptional();
64}
65fn implicitIntLitToOptional() void {
66 const f: ?i32 = 1;
67 _ = f;
68 const g: anyerror!?i32 = 1;
69 _ = g catch {};
70}
71
72test "return null from fn() anyerror!?&T" {
73 const a = returnNullFromOptionalTypeErrorRef();
74 const b = returnNullLitFromOptionalTypeErrorRef();
75 try expect((try a) == null and (try b) == null);
76}
77fn returnNullFromOptionalTypeErrorRef() anyerror!?*A {
78 const a: ?*A = null;
79 return a;
80}
81fn returnNullLitFromOptionalTypeErrorRef() anyerror!?*A {
82 return null;
83}
84
85test "peer type resolution: [0]u8 and []const u8" {
86 try expect(peerTypeEmptyArrayAndSlice(true, "hi").len == 0);
87 try expect(peerTypeEmptyArrayAndSlice(false, "hi").len == 1);
88 comptime {
89 try expect(peerTypeEmptyArrayAndSlice(true, "hi").len == 0);
90 try expect(peerTypeEmptyArrayAndSlice(false, "hi").len == 1);
91 }
92}
93fn peerTypeEmptyArrayAndSlice(a: bool, slice: []const u8) []const u8 {
94 if (a) {
95 return &[_]u8{};
96 }
97
98 return slice[0..1];
99}
100
101test "implicitly cast from [N]T to ?[]const T" {
102 try expect(mem.eql(u8, castToOptionalSlice().?, "hi"));
103 comptime try expect(mem.eql(u8, castToOptionalSlice().?, "hi"));
104}
105
106fn castToOptionalSlice() ?[]const u8 {
107 return "hi";
108}
109
110test "implicitly cast from [0]T to anyerror![]T" {61test "implicitly cast from [0]T to anyerror![]T" {
111 try testCastZeroArrayToErrSliceMut();62 try testCastZeroArrayToErrSliceMut();
112 comptime try testCastZeroArrayToErrSliceMut();63 comptime try testCastZeroArrayToErrSliceMut();
...@@ -191,23 +142,6 @@ fn testPeerErrorAndArray2(x: u8) anyerror![]const u8 {...@@ -191,23 +142,6 @@ fn testPeerErrorAndArray2(x: u8) anyerror![]const u8 {
191 };142 };
192}143}
193144
194test "cast u128 to f128 and back" {
195 comptime try testCast128();
196 try testCast128();
197}
198
199fn testCast128() !void {
200 try expect(cast128Int(cast128Float(0x7fff0000000000000000000000000000)) == 0x7fff0000000000000000000000000000);
201}
202
203fn cast128Int(x: f128) u128 {
204 return @bitCast(u128, x);
205}
206
207fn cast128Float(x: u128) f128 {
208 return @bitCast(f128, x);
209}
210
211test "single-item pointer of array to slice to unknown length pointer" {145test "single-item pointer of array to slice to unknown length pointer" {
212 try testCastPtrOfArrayToSliceAndPtr();146 try testCastPtrOfArrayToSliceAndPtr();
213 comptime try testCastPtrOfArrayToSliceAndPtr();147 comptime try testCastPtrOfArrayToSliceAndPtr();
...@@ -316,27 +250,6 @@ test "@floatCast cast down" {...@@ -316,27 +250,6 @@ test "@floatCast cast down" {
316 }250 }
317}251}
318252
319test "implicit cast from *[N]T to ?[*]T" {
320 var x: ?[*]u16 = null;
321 var y: [4]u16 = [4]u16{ 0, 1, 2, 3 };
322
323 x = &y;
324 try expect(std.mem.eql(u16, x.?[0..4], y[0..4]));
325 x.?[0] = 8;
326 y[3] = 6;
327 try expect(std.mem.eql(u16, x.?[0..4], y[0..4]));
328}
329
330test "implicit cast from *T to ?*c_void" {
331 var a: u8 = 1;
332 incrementVoidPtrValue(&a);
333 try std.testing.expect(a == 2);
334}
335
336fn incrementVoidPtrValue(value: ?*c_void) void {
337 @ptrCast(*u8, value.?).* += 1;
338}
339
340test "peer type resolution: unreachable, null, slice" {253test "peer type resolution: unreachable, null, slice" {
341 const S = struct {254 const S = struct {
342 fn doTheTest(num: usize, word: []const u8) !void {255 fn doTheTest(num: usize, word: []const u8) !void {
...@@ -374,11 +287,6 @@ test "peer type resolution: unreachable, error set, unreachable" {...@@ -374,11 +287,6 @@ test "peer type resolution: unreachable, error set, unreachable" {
374 try expect(transformed_err == error.SystemResources);287 try expect(transformed_err == error.SystemResources);
375}288}
376289
377test "implicit cast *[0]T to E![]const u8" {
378 var x = @as(anyerror![]const u8, &[0]u8{});
379 try expect((x catch unreachable).len == 0);
380}
381
382test "peer cast *[0]T to E![]const T" {290test "peer cast *[0]T to E![]const T" {
383 var buffer: [5]u8 = "abcde".*;291 var buffer: [5]u8 = "abcde".*;
384 var buf: anyerror![]const u8 = buffer[0..];292 var buf: anyerror![]const u8 = buffer[0..];
...@@ -395,24 +303,6 @@ test "peer cast *[0]T to []const T" {...@@ -395,24 +303,6 @@ test "peer cast *[0]T to []const T" {
395 try expect(mem.eql(u8, "abcde", y));303 try expect(mem.eql(u8, "abcde", y));
396}304}
397305
398var global_array: [4]u8 = undefined;
399test "cast from array reference to fn" {
400 const f = @ptrCast(fn () callconv(.C) void, &global_array);
401 try expect(@ptrToInt(f) == @ptrToInt(&global_array));
402}
403
404test "*const [N]null u8 to ?[]const u8" {
405 const S = struct {
406 fn doTheTest() !void {
407 var a = "Hello";
408 var b: ?[]const u8 = a;
409 try expect(mem.eql(u8, b.?, "Hello"));
410 }
411 };
412 try S.doTheTest();
413 comptime try S.doTheTest();
414}
415
416test "peer resolution of string literals" {306test "peer resolution of string literals" {
417 const S = struct {307 const S = struct {
418 const E = enum { a, b, c, d };308 const E = enum { a, b, c, d };
...@@ -502,19 +392,6 @@ test "cast i8 fn call peers to i32 result" {...@@ -502,19 +392,6 @@ test "cast i8 fn call peers to i32 result" {
502 comptime try S.doTheTest();392 comptime try S.doTheTest();
503}393}
504394
505test "return u8 coercing into ?u32 return type" {
506 const S = struct {
507 fn doTheTest() !void {
508 try expect(foo(123).? == 123);
509 }
510 fn foo(arg: u8) ?u32 {
511 return arg;
512 }
513 };
514 try S.doTheTest();
515 comptime try S.doTheTest();
516}
517
518test "peer type resolution implicit cast to return type" {395test "peer type resolution implicit cast to return type" {
519 const S = struct {396 const S = struct {
520 fn doTheTest() !void {397 fn doTheTest() !void {
...@@ -553,24 +430,6 @@ test "variable initialization uses result locations properly with regards to the...@@ -553,24 +430,6 @@ test "variable initialization uses result locations properly with regards to the
553 try expect(x == 1);430 try expect(x == 1);
554}431}
555432
556test "cast between [*c]T and ?[*:0]T on fn parameter" {
557 const S = struct {
558 const Handler = ?fn ([*c]const u8) callconv(.C) void;
559 fn addCallback(handler: Handler) void {
560 _ = handler;
561 }
562
563 fn myCallback(cstr: ?[*:0]const u8) callconv(.C) void {
564 _ = cstr;
565 }
566
567 fn doTheTest() void {
568 addCallback(myCallback);
569 }
570 };
571 S.doTheTest();
572}
573
574test "cast between C pointer with different but compatible types" {433test "cast between C pointer with different but compatible types" {
575 const S = struct {434 const S = struct {
576 fn foo(arg: [*]c_ushort) u16 {435 fn foo(arg: [*]c_ushort) u16 {
...@@ -584,13 +443,6 @@ test "cast between C pointer with different but compatible types" {...@@ -584,13 +443,6 @@ test "cast between C pointer with different but compatible types" {
584 try S.doTheTest();443 try S.doTheTest();
585}444}
586445
587var global_struct: struct { f0: usize } = undefined;
588
589test "assignment to optional pointer result loc" {
590 var foo: struct { ptr: ?*c_void } = .{ .ptr = &global_struct };
591 try expect(foo.ptr.? == @ptrCast(*c_void, &global_struct));
592}
593
594test "peer type resolve string lit with sentinel-terminated mutable slice" {446test "peer type resolve string lit with sentinel-terminated mutable slice" {
595 var array: [4:0]u8 = undefined;447 var array: [4:0]u8 = undefined;
596 array[4] = 0; // TODO remove this when #4372 is solved448 array[4] = 0; // TODO remove this when #4372 is solved
...@@ -649,14 +501,3 @@ test "comptime float casts" {...@@ -649,14 +501,3 @@ test "comptime float casts" {
649fn expectFloatToInt(comptime F: type, f: F, comptime I: type, i: I) !void {501fn expectFloatToInt(comptime F: type, f: F, comptime I: type, i: I) !void {
650 try expect(@floatToInt(I, f) == i);502 try expect(@floatToInt(I, f) == i);
651}503}
652
653test "cast from ?[*]T to ??[*]T" {
654 const a: ??[*]u8 = @as(?[*]u8, null);
655 try expect(a != null and a.? == null);
656}
657
658test "cast between *[N]void and []void" {
659 var a: [4]void = undefined;
660 var b: []void = &a;
661 try expect(b.len == 4);
662}
test/behavior/fn.zig+42
...@@ -121,3 +121,45 @@ test "inline function call that calls optional function pointer, return pointer...@@ -121,3 +121,45 @@ test "inline function call that calls optional function pointer, return pointer
121 };121 };
122 try S.doTheTest();122 try S.doTheTest();
123}123}
124
125test "implicit cast function unreachable return" {
126 wantsFnWithVoid(fnWithUnreachable);
127}
128
129fn wantsFnWithVoid(f: fn () void) void {
130 _ = f;
131}
132
133fn fnWithUnreachable() noreturn {
134 unreachable;
135}
136
137test "extern struct with stdcallcc fn pointer" {
138 const S = extern struct {
139 ptr: fn () callconv(if (builtin.target.cpu.arch == .i386) .Stdcall else .C) i32,
140
141 fn foo() callconv(if (builtin.target.cpu.arch == .i386) .Stdcall else .C) i32 {
142 return 1234;
143 }
144 };
145
146 var s: S = undefined;
147 s.ptr = S.foo;
148 try expect(s.ptr() == 1234);
149}
150
151const nComplexCallconv = 100;
152fn fComplexCallconvRet(x: u32) callconv(blk: {
153 const s: struct { n: u32 } = .{ .n = nComplexCallconv };
154 break :blk switch (s.n) {
155 0 => .C,
156 1 => .Inline,
157 else => .Unspecified,
158 };
159}) struct { x: u32 } {
160 return .{ .x = x * x };
161}
162
163test "function with complex callconv and return type expressions" {
164 try expect(fComplexCallconvRet(3).x == 9);
165}
test/behavior/fn_stage1.zig-42
...@@ -23,18 +23,6 @@ fn acceptsString(foo: []u8) void {...@@ -23,18 +23,6 @@ fn acceptsString(foo: []u8) void {
23 _ = foo;23 _ = foo;
24}24}
2525
26test "implicit cast function unreachable return" {
27 wantsFnWithVoid(fnWithUnreachable);
28}
29
30fn wantsFnWithVoid(f: fn () void) void {
31 _ = f;
32}
33
34fn fnWithUnreachable() noreturn {
35 unreachable;
36}
37
38test "function pointers" {26test "function pointers" {
39 const fns = [_]@TypeOf(fn1){27 const fns = [_]@TypeOf(fn1){
40 fn1,28 fn1,
...@@ -126,20 +114,6 @@ test "pass by non-copying value as method, at comptime" {...@@ -126,20 +114,6 @@ test "pass by non-copying value as method, at comptime" {
126 }114 }
127}115}
128116
129test "extern struct with stdcallcc fn pointer" {
130 const S = extern struct {
131 ptr: fn () callconv(if (builtin.target.cpu.arch == .i386) .Stdcall else .C) i32,
132
133 fn foo() callconv(if (builtin.target.cpu.arch == .i386) .Stdcall else .C) i32 {
134 return 1234;
135 }
136 };
137
138 var s: S = undefined;
139 s.ptr = S.foo;
140 try expect(s.ptr() == 1234);
141}
142
143test "implicit cast fn call result to optional in field result" {117test "implicit cast fn call result to optional in field result" {
144 const S = struct {118 const S = struct {
145 fn entry() !void {119 fn entry() !void {
...@@ -204,19 +178,3 @@ test "function with inferred error set but returning no error" {...@@ -204,19 +178,3 @@ test "function with inferred error set but returning no error" {
204 const return_ty = @typeInfo(@TypeOf(S.foo)).Fn.return_type.?;178 const return_ty = @typeInfo(@TypeOf(S.foo)).Fn.return_type.?;
205 try expectEqual(0, @typeInfo(@typeInfo(return_ty).ErrorUnion.error_set).ErrorSet.?.len);179 try expectEqual(0, @typeInfo(@typeInfo(return_ty).ErrorUnion.error_set).ErrorSet.?.len);
206}180}
207
208const nComplexCallconv = 100;
209fn fComplexCallconvRet(x: u32) callconv(blk: {
210 const s: struct { n: u32 } = .{ .n = nComplexCallconv };
211 break :blk switch (s.n) {
212 0 => .C,
213 1 => .Inline,
214 else => .Unspecified,
215 };
216}) struct { x: u32 } {
217 return .{ .x = x * x };
218}
219
220test "function with complex callconv and return type expressions" {
221 try expect(fComplexCallconvRet(3).x == 9);
222}
test/behavior/generics.zig+29
...@@ -134,3 +134,32 @@ test "use generic param in generic param" {...@@ -134,3 +134,32 @@ test "use generic param in generic param" {
134fn aGenericFn(comptime T: type, comptime a: T, b: T) T {134fn aGenericFn(comptime T: type, comptime a: T, b: T) T {
135 return a + b;135 return a + b;
136}136}
137
138test "generic fn with implicit cast" {
139 try expect(getFirstByte(u8, &[_]u8{13}) == 13);
140 try expect(getFirstByte(u16, &[_]u16{
141 0,
142 13,
143 }) == 0);
144}
145fn getByte(ptr: ?*const u8) u8 {
146 return ptr.?.*;
147}
148fn getFirstByte(comptime T: type, mem: []const T) u8 {
149 return getByte(@ptrCast(*const u8, &mem[0]));
150}
151
152test "generic fn keeps non-generic parameter types" {
153 const A = 128;
154
155 const S = struct {
156 fn f(comptime T: type, s: []T) !void {
157 try expect(A != @typeInfo(@TypeOf(s)).Pointer.alignment);
158 }
159 };
160
161 // The compiler monomorphizes `S.f` for `T=u8` on its first use, check that
162 // `x` type not affect `s` parameter type.
163 var x: [16]u8 align(A) = undefined;
164 try S.f(u8, &x);
165}
test/behavior/generics_llvm.zig created+42
...@@ -0,0 +1,42 @@
1const std = @import("std");
2const expect = std.testing.expect;
3
4const foos = [_]fn (anytype) bool{
5 foo1,
6 foo2,
7};
8
9fn foo1(arg: anytype) bool {
10 return arg;
11}
12fn foo2(arg: anytype) bool {
13 return !arg;
14}
15
16test "array of generic fns" {
17 try expect(foos[0](true));
18 try expect(!foos[1](true));
19}
20
21test "generic struct" {
22 var a1 = GenNode(i32){
23 .value = 13,
24 .next = null,
25 };
26 var b1 = GenNode(bool){
27 .value = true,
28 .next = null,
29 };
30 try expect(a1.value == 13);
31 try expect(a1.value == a1.getVal());
32 try expect(b1.getVal());
33}
34fn GenNode(comptime T: type) type {
35 return struct {
36 value: T,
37 next: ?*GenNode(T),
38 fn getVal(n: *const GenNode(T)) T {
39 return n.value;
40 }
41 };
42}
test/behavior/generics_stage1.zig deleted-73
...@@ -1,73 +0,0 @@
1const std = @import("std");
2const testing = std.testing;
3const expect = testing.expect;
4const expectEqual = testing.expectEqual;
5
6test "generic struct" {
7 var a1 = GenNode(i32){
8 .value = 13,
9 .next = null,
10 };
11 var b1 = GenNode(bool){
12 .value = true,
13 .next = null,
14 };
15 try expect(a1.value == 13);
16 try expect(a1.value == a1.getVal());
17 try expect(b1.getVal());
18}
19fn GenNode(comptime T: type) type {
20 return struct {
21 value: T,
22 next: ?*GenNode(T),
23 fn getVal(n: *const GenNode(T)) T {
24 return n.value;
25 }
26 };
27}
28
29test "generic fn with implicit cast" {
30 try expect(getFirstByte(u8, &[_]u8{13}) == 13);
31 try expect(getFirstByte(u16, &[_]u16{
32 0,
33 13,
34 }) == 0);
35}
36fn getByte(ptr: ?*const u8) u8 {
37 return ptr.?.*;
38}
39fn getFirstByte(comptime T: type, mem: []const T) u8 {
40 return getByte(@ptrCast(*const u8, &mem[0]));
41}
42
43const foos = [_]fn (anytype) bool{
44 foo1,
45 foo2,
46};
47
48fn foo1(arg: anytype) bool {
49 return arg;
50}
51fn foo2(arg: anytype) bool {
52 return !arg;
53}
54
55test "array of generic fns" {
56 try expect(foos[0](true));
57 try expect(!foos[1](true));
58}
59
60test "generic fn keeps non-generic parameter types" {
61 const A = 128;
62
63 const S = struct {
64 fn f(comptime T: type, s: []T) !void {
65 try expect(A != @typeInfo(@TypeOf(s)).Pointer.alignment);
66 }
67 };
68
69 // The compiler monomorphizes `S.f` for `T=u8` on its first use, check that
70 // `x` type not affect `s` parameter type.
71 var x: [16]u8 align(A) = undefined;
72 try S.f(u8, &x);
73}