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e0fd75b5ab
This caused us to lose our gn check certification. :( Turns out gn check was just ignoring all the header paths it didn't understand and so gn check passing for sky wasn't meaning much. I tried to straighten out some of the mess in this CL, but its going to take several more rounds of massaging before gn check passes again. On the bright side (almost) all of our headers are absolute now. Turns out my script (attached to the bug) didn't notice ../ includes but I'll fix that in the next patch. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/746023002
133 lines
4.7 KiB
C++
133 lines
4.7 KiB
C++
/*
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* Copyright (C) 2009 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/bindings/core/v8/V8ValueCache.h"
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#include "sky/engine/bindings/core/v8/V8Binding.h"
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#include "sky/engine/wtf/text/StringHash.h"
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namespace blink {
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StringCacheMapTraits::MapType* StringCacheMapTraits::MapFromWeakCallbackData(
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const v8::WeakCallbackData<v8::String, WeakCallbackDataType>& data)
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{
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return &(V8PerIsolateData::from(data.GetIsolate())->stringCache()->m_stringCache);
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}
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void StringCacheMapTraits::Dispose(
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v8::Isolate* isolate, v8::UniquePersistent<v8::String> value, StringImpl* key)
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{
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V8PerIsolateData::from(isolate)->stringCache()->InvalidateLastString();
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key->deref();
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}
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StringCache::~StringCache()
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{
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// The MapType::Dispose callback calls StringCache::InvalidateLastString,
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// which will only work while the destructor has not yet finished. Thus,
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// we need to clear the map before the destructor has completed.
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m_stringCache.Clear();
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}
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static v8::Local<v8::String> makeExternalString(const String& string, v8::Isolate* isolate)
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{
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if (string.is8Bit()) {
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WebCoreStringResource8* stringResource = new WebCoreStringResource8(string);
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v8::Local<v8::String> newString = v8::String::NewExternal(isolate, stringResource);
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if (newString.IsEmpty())
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delete stringResource;
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return newString;
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}
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WebCoreStringResource16* stringResource = new WebCoreStringResource16(string);
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v8::Local<v8::String> newString = v8::String::NewExternal(isolate, stringResource);
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if (newString.IsEmpty())
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delete stringResource;
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return newString;
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}
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v8::Handle<v8::String> StringCache::v8ExternalStringSlow(StringImpl* stringImpl, v8::Isolate* isolate)
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{
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if (!stringImpl->length())
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return v8::String::Empty(isolate);
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StringCacheMapTraits::MapType::PersistentValueReference cachedV8String = m_stringCache.GetReference(stringImpl);
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if (!cachedV8String.IsEmpty()) {
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m_lastStringImpl = stringImpl;
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m_lastV8String = cachedV8String;
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return m_lastV8String.NewLocal(isolate);
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}
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return createStringAndInsertIntoCache(stringImpl, isolate);
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}
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void StringCache::setReturnValueFromStringSlow(v8::ReturnValue<v8::Value> returnValue, StringImpl* stringImpl)
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{
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if (!stringImpl->length()) {
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returnValue.SetEmptyString();
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return;
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}
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StringCacheMapTraits::MapType::PersistentValueReference cachedV8String = m_stringCache.GetReference(stringImpl);
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if (!cachedV8String.IsEmpty()) {
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m_lastStringImpl = stringImpl;
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m_lastV8String = cachedV8String;
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m_lastV8String.SetReturnValue(returnValue);
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return;
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}
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returnValue.Set(createStringAndInsertIntoCache(stringImpl, returnValue.GetIsolate()));
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}
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v8::Local<v8::String> StringCache::createStringAndInsertIntoCache(StringImpl* stringImpl, v8::Isolate* isolate)
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{
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ASSERT(!m_stringCache.Contains(stringImpl));
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ASSERT(stringImpl->length());
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v8::Local<v8::String> newString = makeExternalString(String(stringImpl), isolate);
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if (newString.IsEmpty())
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return newString;
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v8::UniquePersistent<v8::String> wrapper(isolate, newString);
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stringImpl->ref();
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wrapper.MarkIndependent();
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m_stringCache.Set(stringImpl, wrapper.Pass(), &m_lastV8String);
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m_lastStringImpl = stringImpl;
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return newString;
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}
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void StringCache::InvalidateLastString()
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{
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m_lastStringImpl = nullptr;
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m_lastV8String.Reset();
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}
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} // namespace blink
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