vast: fix segfault for fn main() { $compile_warn("WARN") }

vlang · Jun 14, 2023 · cb5d5f8 · cb5d5f8
1 parent 23da212
commit cb5d5f8
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/cmd/tools/vast/vast.v b/cmd/tools/vast/vast.v
@@ -300,8 +300,11 @@ fn (t Tree) mod(node ast.Module) &Node {
 	return obj
 }
 
-fn (t Tree) scope(scope ast.Scope) &Node {
+fn (t Tree) scope(scope &ast.Scope) &Node {
 	mut obj := new_object()
+	if unsafe { scope == nil } {
+		return obj
+	}
 	obj.add_terse('ast_type', t.string_node('Scope'))
 	obj.add_terse('parent', t.string_node(ptr_str(scope.parent)))
 	children_arr := new_array()