mirror of https://github.com/tc39/test262.git
34 lines
912 B
JavaScript
34 lines
912 B
JavaScript
// Copyright 2017 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() {
|
|
function foo(s) { return s.slice(-1); }
|
|
|
|
assertEquals('', foo(''));
|
|
assertEquals('a', foo('a'));
|
|
assertEquals('b', foo('ab'));
|
|
assertEquals('c', foo('abc'));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertEquals('', foo(''));
|
|
assertEquals('a', foo('a'));
|
|
assertEquals('b', foo('ab'));
|
|
assertEquals('c', foo('abc'));
|
|
})();
|
|
|
|
(function() {
|
|
function foo(s) { return s.slice(-1, undefined); }
|
|
|
|
assertEquals('', foo(''));
|
|
assertEquals('a', foo('a'));
|
|
assertEquals('b', foo('ab'));
|
|
assertEquals('c', foo('abc'));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertEquals('', foo(''));
|
|
assertEquals('a', foo('a'));
|
|
assertEquals('b', foo('ab'));
|
|
assertEquals('c', foo('abc'));
|
|
})();
|