feat: 命名参数 draw_rect(width: 10, height: 20)

test/programs/27_named_args.l

@@ -0,0 +1,17 @@
+fn draw_rect(x: i64, y: i64, w: i64, h: i64) -> i64 {
+    print_i64(x);
+    print_i64(y);
+    print_i64(w);
+    print_i64(h);
+    return 0;
+}
+
+fn main() -> i64 {
+    // 位置参数
+    draw_rect(0, 0, 100, 200);
+
+    // 命名参数（任意顺序）
+    draw_rect(w: 10, h: 20, x: 1, y: 2);
+
+    return 0;
+}

test/test_codegen.c

@@ -258,7 +258,7 @@ void test_codegen_enum() {
     AstNode* c_ident = ast_make_ident(&a, "c", loc_at(1, 1));
     c_ident->type.kind = TYPE_ENUM;
     AstNode* args[] = { c_ident };
-    AstNode* print_call = ast_make_call(&a, "print_i64", args, 1, loc_at(1, 1));
+    AstNode* print_call = ast_make_call(&a, "print_i64", args, NULL, 1, loc_at(1, 1));
 
     /* return 0; */
     AstNode* ret = ast_make_return(&a, ast_make_literal_i64(&a, 0, loc_at(1, 1)), loc_at(1, 1));
@@ -323,7 +323,7 @@ void test_codegen_array() {
 
     // print_i64(arr[0]);
     AstNode* args[] = { idx_expr };
-    AstNode* print_call = ast_make_call(&a, "print_i64", args, 1, loc_at(1, 1));
+    AstNode* print_call = ast_make_call(&a, "print_i64", args, NULL, 1, loc_at(1, 1));
 
     // return 0;
     AstNode* ret = ast_make_return(&a, ast_make_literal_i64(&a, 0, loc_at(1, 1)), loc_at(1, 1));
@@ -393,7 +393,7 @@ void test_codegen_method_call() {
     AstNode* p_ident = ast_make_ident(&a, "p", loc_at(1, 1));
     p_ident->type.kind = TYPE_STRUCT;
     p_ident->type.struct_name = "Point";
-    AstNode* method_call = ast_make_method_call(&a, p_ident, "get_x", NULL, 0, loc_at(1, 1));
+    AstNode* method_call = ast_make_method_call(&a, p_ident, "get_x", NULL, NULL, 0, loc_at(1, 1));
     method_call->type.kind = TYPE_I64;
 
     AstNode* ret_main = ast_make_return(&a, method_call, loc_at(1, 1));