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e31f0a7d25
PR-URL: https://github.com/nodejs/node/pull/28918 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
30 lines
581 B
JavaScript
30 lines
581 B
JavaScript
// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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'use strict';
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function g() {
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var x = 1;
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try {
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undefined.x;
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} catch (e) {
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x = e;
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}
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(function() {
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x;
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});
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return x;
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}
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function f(a) {
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var args = arguments;
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assertInstanceof(g(), TypeError);
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return args.length;
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};
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%PrepareFunctionForOptimization(f);
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assertEquals(1, f(0));
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assertEquals(1, f(0));
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%OptimizeFunctionOnNextCall(f);
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assertEquals(1, f(0));
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