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Kmake/deps/v8/test/mjsunit/compiler/keyed-load-on-string.js
2026-05-26 23:36:42 -07:00

26 lines
606 B
JavaScript

// Copyright 2019 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
var s = "hello";
function foo() {
return s[4];
};
%PrepareFunctionForOptimization(foo);
assertTrue('o' === foo());
assertTrue("o" === foo());
%OptimizeFunctionOnNextCall(foo);
assertTrue("o" === foo());
function bar() {
return s[5];
};
%PrepareFunctionForOptimization(bar);
assertSame(undefined, bar());
assertSame(undefined, bar());
%OptimizeFunctionOnNextCall(bar);
assertSame(undefined, bar());