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/*
* Copyright (C) 2008, 2009, 2013-2015 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 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 JSLexicalEnvironment_h
#define JSLexicalEnvironment_h
#include "CodeBlock.h"
#include "CopiedSpaceInlines.h"
#include "JSEnvironmentRecord.h"
#include "SymbolTable.h"
namespace JSC {
class Register;
class JSLexicalEnvironment : public JSEnvironmentRecord {
protected:
JSLexicalEnvironment(VM&, Structure*, JSScope*, SymbolTable*);
public:
typedef JSEnvironmentRecord Base;
static const unsigned StructureFlags = Base::StructureFlags | OverridesGetOwnPropertySlot | OverridesGetPropertyNames;
static JSLexicalEnvironment* create(
VM& vm, Structure* structure, JSScope* currentScope, SymbolTable* symbolTable, JSValue initialValue)
{
JSLexicalEnvironment* result =
new (
NotNull,
allocateCell<JSLexicalEnvironment>(vm.heap, allocationSize(symbolTable)))
JSLexicalEnvironment(vm, structure, currentScope, symbolTable);
result->finishCreation(vm, initialValue);
return result;
}
static JSLexicalEnvironment* create(VM& vm, JSGlobalObject* globalObject, JSScope* currentScope, SymbolTable* symbolTable, JSValue initialValue)
{
Structure* structure = globalObject->activationStructure();
return create(vm, structure, currentScope, symbolTable, initialValue);
}
static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
static void getOwnNonIndexPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
static bool deleteProperty(JSCell*, ExecState*, PropertyName);
static JSValue toThis(JSCell*, ExecState*, ECMAMode);
DECLARE_INFO;
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject) { return Structure::create(vm, globalObject, jsNull(), TypeInfo(ClosureObjectType, StructureFlags), info()); }
};
inline JSLexicalEnvironment::JSLexicalEnvironment(VM& vm, Structure* structure, JSScope* currentScope, SymbolTable* symbolTable)
: Base(vm, structure, currentScope, symbolTable)
{
}
inline JSLexicalEnvironment* asActivation(JSValue value)
{
ASSERT(asObject(value)->inherits(JSLexicalEnvironment::info()));
return jsCast<JSLexicalEnvironment*>(asObject(value));
}
} // namespace JSC
#endif // JSLexicalEnvironment_h
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