Compiler segfault when splatting variable that does not exist in untyped vaarg macro #2509

releasenotes.md

@@ -48,6 +48,7 @@
 - Dead code analysis with labelled `if` did not work properly.
 
 ### Stdlib changes
+- Added AES encryption functions.
 - Added generic `InterfaceList` to store a list of values that implement a specific interface
 - Added `path::home_directory`, `path::documents_directory`, `path::videos_directory`, `path::pictures_directory`, `path::desktop_directory`, `path::screenshots_directory`,
   `path::public_share_directory`, `path::templates_directory`, `path::saved_games_directory`, `path::music_directory`, `path::downloads_directory`.
@@ -150,6 +151,7 @@
 - Fix missing end of line when encountering errors in project creation.
 - Const enum methods are not being recognized. #2445
 - $defined returns an error when assigning a struct initializer with an incorrect type #2449
+- Compiler segfault when splatting variable that does not exist in untyped vaarg macro #2509
 
 ### Stdlib changes
 - Add `==` to `Pair`, `Triple` and TzDateTime. Add print to `Pair` and `Triple`.

src/compiler/sema_expr.c

@@ -1781,7 +1781,7 @@ static Decl *sema_find_splat_arg(Decl *macro, const char *name)
 {
 	FOREACH(Decl *, decl, macro->func_decl.signature.params)
 	{
-		if (decl->name == name) return decl;
+		if (decl && decl->name == name) return decl;
 	}
 	return NULL;
 }

test/test_suite/functions/splat_arg_fail.c3

@@ -0,0 +1,8 @@
+macro test1(...) {}
+macro test(...) => test1(...args); // #error: 'args' could not be found
+
+fn int main(String[] args)
+{
+	test();
+	return 0;
+}