@links on macros would not be added to calling functions.

releasenotes.md

@@ -57,6 +57,7 @@
 - Fix stringify of $vaexpr #2301.
 - Segfault when failing to cast subexpression to 'isz' in pointer subtraction #2305.
 - Fix unexpected display of macro definition when passing a poisoned expression #2305.
+- `@links` on macros would not be added to calling functions.
 
 ### Stdlib changes
 - Improve contract for readline. #2280

src/compiler/copying.c

@@ -862,13 +862,17 @@ static ResolvedAttrData *copy_attrs_resolved(CopyStruct *c, ResolvedAttrData *da
 {
 	if (!data) return NULL;
 	ResolvedAttrData *copy = MALLOCS(ResolvedAttrData);
+	const char **new_links = NULL;
+	FOREACH(const char *, link, data->links) vec_add(new_links, link);
 	*copy = (ResolvedAttrData) {
 			.tags = copy_attributes(c, data->tags),
 			.deprecated = data->deprecated,
-			.links = data->links,
+			.links = new_links,
 			.section = data->section,
 			.wasm_module = data->wasm_module
 	};
+	const char **new = NULL;
+
 	return copy;
 }
 

src/compiler/sema_expr.c

@@ -2550,6 +2550,26 @@ bool sema_expr_analyse_macro_call(SemaContext *context, Expr *call_expr, Expr *s
 								  bool call_var_optional, bool *no_match_ref)
 {
 	bool is_always_const = decl->func_decl.signature.attrs.always_const;
+	if (decl->resolved_attributes && decl->attrs_resolved && decl->attrs_resolved->links)
+	{
+		Decl *func = context->call_env.current_function;
+		if (!func)
+		{
+			RETURN_SEMA_ERROR(call_expr, "Cannot call macro with '@links' outside of a function.");
+		}
+		assert(func->resolved_attributes);
+		if (!func->attrs_resolved)
+		{
+			func->attrs_resolved = MALLOCS(ResolvedAttrData);
+			*func->attrs_resolved = (ResolvedAttrData) { .overload = INVALID_SPAN };
+		}
+		const char **updated = func->attrs_resolved->links;
+		FOREACH(const char *, link, decl->attrs_resolved->links)
+		{
+			vec_add(updated, link);
+		}
+		func->attrs_resolved->links = updated;
+	}
 	bool is_outer = call_expr->call_expr.is_outer_call;
 	ASSERT_SPAN(call_expr, decl->decl_kind == DECL_MACRO);