PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
36 lines
1.1 KiB
JavaScript
36 lines
1.1 KiB
JavaScript
// Copyright 2024 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
// Flags: --allow-natives-syntax --maglev --no-always-turbofan
|
|
|
|
function add(a, b) {
|
|
return a + b;
|
|
}
|
|
%PrepareFunctionForOptimization(add);
|
|
|
|
const string = 'first';
|
|
const stringWrapper = new String('second');
|
|
|
|
assertEquals('firstsecond', add(string, stringWrapper));
|
|
%OptimizeMaglevOnNextCall(add);
|
|
|
|
assertEquals('firstsecond', add(string, stringWrapper));
|
|
assertTrue(isMaglevved(add));
|
|
|
|
// Also passing the params the other way around is supported (both params are
|
|
// of type "string or string wrapper").
|
|
|
|
assertEquals('secondfirst', add(stringWrapper, string));
|
|
assertTrue(isMaglevved(add));
|
|
|
|
assertEquals('firstfirst', add(string, string));
|
|
assertTrue(isMaglevved(add));
|
|
|
|
assertEquals('secondsecond', add(stringWrapper, stringWrapper));
|
|
assertTrue(isMaglevved(add));
|
|
|
|
// Pass a JSPrimitiveWrapper which is not a string wrapper.
|
|
assertEquals('first123', add(string, new Number(123)));
|
|
assertUnoptimized(add);
|