mirror of
https://github.com/nodejs/node.git
synced 2025-05-15 22:04:26 +00:00
fd4f80ce54
PR-URL: https://github.com/nodejs/node/pull/42657 Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
24 lines
595 B
JavaScript
24 lines
595 B
JavaScript
// Copyright 2021 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
|
|
|
|
(function() {
|
|
var use_symbol = {
|
|
[Symbol.hasInstance] : () => true
|
|
};
|
|
var use_symbol_double = {
|
|
[Symbol.hasInstance] : 0.1
|
|
};
|
|
function bar(b) {
|
|
if (b) return {} instanceof use_symbol_double;
|
|
}
|
|
%PrepareFunctionForOptimization(bar);
|
|
function foo(b) { return bar(); }
|
|
%PrepareFunctionForOptimization(foo);
|
|
foo();
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
foo();
|
|
})();
|