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Merged: [turbofan] Disable inlining of derived class constructors.
Revision: c019e53 BUG=chromium:706642 LOG=N NOTRY=true NOPRESUBMIT=true NOTREECHECKS=true Change-Id: I61e9d2decb269b33aefcc6e77d6c09bab3a2a994 Reviewed-on: https://chromium-review.googlesource.com/465828 Reviewed-by: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/branch-heads/5.8@{crosswalk-project#49} Cr-Branched-From: eda659c-refs/heads/5.8.283@{crosswalk-project#1} Cr-Branched-From: 4310cd0-refs/heads/master@{#43429}
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Original file line number | Diff line number | Diff line change |
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// 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. | ||
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// Flags: --allow-natives-syntax | ||
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class A extends Object { | ||
constructor(arg) { | ||
super(); | ||
superclass_counter++; | ||
if (superclass_counter === 3) { | ||
return 1; | ||
} | ||
} | ||
} | ||
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class B extends A { | ||
constructor() { | ||
let x = super(123); | ||
return x.a; | ||
} | ||
} | ||
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var superclass_counter = 0; | ||
var observer = new Proxy(A, { | ||
get(target, property, receiver) { | ||
if (property === 'prototype') { | ||
%DeoptimizeFunction(B); | ||
} | ||
return Reflect.get(target, property, receiver); | ||
} | ||
}); | ||
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Reflect.construct(B, [], observer); | ||
Reflect.construct(B, [], observer); | ||
%OptimizeFunctionOnNextCall(B); | ||
assertThrows(() => Reflect.construct(B, [], observer), TypeError); |