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- Reference macro parameters syntax does not error in certain cases. #2612

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This commit is contained in:
Christoffer Lerno
2025-11-30 02:23:00 +01:00
parent 9d79c3f33d
commit a2aa9fae6b
5 changed files with 22 additions and 7 deletions
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1
releasenotes.md
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@@ -48,6 +48,7 @@
- Bug on rethrow in return with defer #2603.
- Fix bug when converting from vector to distinct type of wider vector. #2604
- `$defined(hashmap.init(mem))` causes compiler segfault #2611.
- Reference macro parameters syntax does not error in certain cases. #2612
### Stdlib changes
- Add `CGFloat` `CGPoint` `CGSize` `CGRect` types to core_foundation (macOS).

2
src/compiler/parse_global.c
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@@ -1639,7 +1639,7 @@ CHECK_ELLIPSIS:
}
if (vec_size(params) > 0)
{
PRINT_ERROR_HERE("Only the first parameter may use '&'.");
PRINT_ERROR_HERE("Only the first parameter may be a self parameter using '&'.");
return false;
}
// This will catch Type... &foo and &foo..., neither is allowed.

11
src/compiler/sema_decls.c
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@@ -1204,13 +1204,16 @@ static inline bool sema_analyse_signature(SemaContext *context, Signature *sig,
is_macro ? RESOLVE_TYPE_MACRO_METHOD : RESOLVE_TYPE_FUNC_METHOD)) return false;
}
if (params && params[0] && params[0]->var.self_addr && params[0]->var.type_info)
if (params && params[0] && params[0]->var.self_addr)
{
if (method_parent)
if (!method_parent)
{
RETURN_SEMA_ERROR(type_infoptr(params[0]->var.type_info), "A ref parameter should always be untyped, please remove the type here.");
RETURN_SEMA_ERROR(params[0], "Self parameters are only allowed on methods.");
}
if (params[0]->var.type_info)
{
RETURN_SEMA_ERROR(type_infoptr(params[0]->var.type_info), "A self parameter should always be untyped, please remove the type here.");
}
RETURN_SEMA_ERROR(params[0], "Ref parameters are only allowed on methods.");
}
// Fill in the type if the first parameter is lacking a type.
if (method_parent && params && params[0] && !params[0]->var.type_info)

4
test/test_suite/functions/ref_param_fn.c3
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@@ -1,9 +1,9 @@
fn String str(int& element) // #error: Ref parameters are only allowed on methods
fn String str(int& element) // #error: Self parameters are only allowed on methods
{
return "abc";
}
fn String int.str(int& element) // #error: A ref parameter should always be untyped
fn String int.str(int& element) // #error: A self parameter should always be untyped, please remove the type here
{
return "abc";
}

11
test/test_suite/methods/self_not_method.c3 Normal file
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@@ -0,0 +1,11 @@
macro void m(&x) // #error: Self parameters are only allowed on methods
{
$echo $typeof(x);
}
fn void main()
{
int x;
m(x);
}