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Merge pull request #14070 from jacobly0/issue/14032

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Fix #14032
This commit is contained in:
Andrew Kelley 2022-12-26 18:06:19 -05:00 committed by GitHub
commit b0cd24f90e
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2 changed files with 33 additions and 8 deletions
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10
src/Sema.zig
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@ -29708,6 +29708,12 @@ fn resolveLazyValue(sema: *Sema, val: Value) CompileError!void {
const field_ptr = val.castTag(.comptime_field_ptr).?.data;
return sema.resolveLazyValue(field_ptr.field_val);
},
.eu_payload,
.opt_payload,
=> {
const sub_val = val.cast(Value.Payload.SubValue).?.data;
return sema.resolveLazyValue(sub_val);
},
.@"union" => {
const union_val = val.castTag(.@"union").?.data;
return sema.resolveLazyValue(union_val.val);
@ -29747,7 +29753,7 @@ pub fn resolveTypeLayout(sema: *Sema, ty: Type) CompileError!void {
.Fn => {
const info = ty.fnInfo();
if (info.is_generic) {
// Resolving of generic function types is defeerred to when
// Resolving of generic function types is deferred to when
// the function is instantiated.
return;
}
@ -30201,7 +30207,7 @@ pub fn resolveTypeFully(sema: *Sema, ty: Type) CompileError!void {
.Fn => {
const info = ty.fnInfo();
if (info.is_generic) {
// Resolving of generic function types is defeerred to when
// Resolving of generic function types is deferred to when
// the function is instantiated.
return;
}

31
test/behavior/struct.zig
View File

@ -1420,15 +1420,34 @@ test "struct field has a pointer to an aligned version of itself" {
try expect(&e == e.next);
}
test "struct only referenced from optional parameter/return" {
test "struct has only one reference" {
const S = struct {
fn f(_: ?struct { x: u8 }) void {}
fn g() ?struct { x: u8 } {
fn optionalStructParam(_: ?struct { x: u8 }) void {}
fn errorUnionStructParam(_: error{}!struct { x: u8 }) void {}
fn optionalStructReturn() ?struct { x: u8 } {
return null;
}
fn errorUnionStructReturn() error{Foo}!struct { x: u8 } {
return error.Foo;
}
fn optionalComptimeIntParam(comptime x: ?comptime_int) comptime_int {
return x.?;
}
fn errorUnionComptimeIntParam(comptime x: error{}!comptime_int) comptime_int {
return x catch unreachable;
}
};
const fp: *const anyopaque = &S.f;
const gp: *const anyopaque = &S.g;
try expect(fp != gp);
const optional_struct_param: *const anyopaque = &S.optionalStructParam;
const error_union_struct_param: *const anyopaque = &S.errorUnionStructParam;
try expect(optional_struct_param != error_union_struct_param);
const optional_struct_return: *const anyopaque = &S.optionalStructReturn;
const error_union_struct_return: *const anyopaque = &S.errorUnionStructReturn;
try expect(optional_struct_return != error_union_struct_return);
try expectEqual(@alignOf(struct {}), S.optionalComptimeIntParam(@alignOf(struct {})));
try expectEqual(@alignOf(struct { x: u8 }), S.errorUnionComptimeIntParam(@alignOf(struct { x: u8 })));
try expectEqual(@sizeOf(struct { x: u16 }), S.optionalComptimeIntParam(@sizeOf(struct { x: u16 })));
try expectEqual(@sizeOf(struct { x: u32 }), S.errorUnionComptimeIntParam(@sizeOf(struct { x: u32 })));
}