diff options
Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/bytecode/EvalCodeCache.h')
-rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/bytecode/EvalCodeCache.h | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/bytecode/EvalCodeCache.h b/src/3rdparty/javascriptcore/JavaScriptCore/bytecode/EvalCodeCache.h deleted file mode 100644 index 05834fc..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/bytecode/EvalCodeCache.h +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright (C) 2008, 2009 Apple Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of - * its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef EvalCodeCache_h -#define EvalCodeCache_h - -#include "Executable.h" -#include "JSGlobalObject.h" -#include "Nodes.h" -#include "Parser.h" -#include "SourceCode.h" -#include "UString.h" -#include <wtf/HashMap.h> -#include <wtf/RefPtr.h> - -namespace JSC { - - class EvalCodeCache { - public: - PassRefPtr<EvalExecutable> get(ExecState* exec, const UString& evalSource, ScopeChainNode* scopeChain, JSValue& exceptionValue) - { - RefPtr<EvalExecutable> evalExecutable; - - if (evalSource.size() < maxCacheableSourceLength && (*scopeChain->begin())->isVariableObject()) - evalExecutable = m_cacheMap.get(evalSource.rep()); - - if (!evalExecutable) { - evalExecutable = EvalExecutable::create(exec, makeSource(evalSource)); - exceptionValue = evalExecutable->compile(exec, scopeChain); - if (exceptionValue) - return 0; - - if (evalSource.size() < maxCacheableSourceLength && (*scopeChain->begin())->isVariableObject() && m_cacheMap.size() < maxCacheEntries) - m_cacheMap.set(evalSource.rep(), evalExecutable); - } - - return evalExecutable.release(); - } - - bool isEmpty() const { return m_cacheMap.isEmpty(); } - - private: - static const int maxCacheableSourceLength = 256; - static const int maxCacheEntries = 64; - - typedef HashMap<RefPtr<UString::Rep>, RefPtr<EvalExecutable> > EvalCacheMap; - EvalCacheMap m_cacheMap; - }; - -} // namespace JSC - -#endif // EvalCodeCache_h |