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Allow to neuter array buffer twice in tests.

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R=jarin@chromium.org

Review URL: https://codereview.chromium.org/209083005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20241 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
dslomov@chromium.org 2014-03-25 12:55:10 +00:00
parent 322a474bf2
commit de690b656f
2 changed files with 13 additions and 0 deletions
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4
src/runtime.cc
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@ -911,6 +911,10 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayBufferIsView) {
RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayBufferNeuter) {
HandleScope scope(isolate);
CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, array_buffer, 0);
if (array_buffer->backing_store() == NULL) {
CHECK(Smi::FromInt(0) == array_buffer->byte_length());
return isolate->heap()->undefined_value();
}
ASSERT(!array_buffer->is_external());
void* backing_store = array_buffer->backing_store();
size_t byte_length = NumberToSize(isolate, array_buffer->byte_length());

9
test/mjsunit/neuter-twice.js Normal file
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@ -0,0 +1,9 @@
// Copyright 2014 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 ab = new ArrayBuffer(100);
%ArrayBufferNeuter(ab);
%ArrayBufferNeuter(ab);