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/*
* Copyright (C) 1999-2002 Harri Porten (porten@kde.org)
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2007 Cameron Zwarich (cwzwarich@uwaterloo.ca)
* Copyright (C) 2007 Maks Orlovich
* Copyright (C) 2007 Eric Seidel <eric@webkit.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "Nodes.h"
#include "NodeConstructors.h"
#include "BytecodeGenerator.h"
#include "CallFrame.h"
#include "Debugger.h"
#include "JIT.h"
#include "JSFunction.h"
#include "JSGlobalObject.h"
#include "JSStaticScopeObject.h"
#include "LabelScope.h"
#include "Lexer.h"
#include "Operations.h"
#include "Parser.h"
#include "PropertyNameArray.h"
#include "RegExpObject.h"
#include "SamplingTool.h"
#include <wtf/Assertions.h>
#include <wtf/RefCountedLeakCounter.h>
#include <wtf/Threading.h>
using namespace WTF;
namespace JSC {
// ------------------------------ StatementNode --------------------------------
void StatementNode::setLoc(int firstLine, int lastLine)
{
m_lineNumber = firstLine;
m_lastLine = lastLine;
}
// ------------------------------ SourceElements --------------------------------
void SourceElements::append(StatementNode* statement)
{
if (statement->isEmptyStatement())
return;
m_statements.append(statement);
}
StatementNode* SourceElements::singleStatement() const
{
size_t size = m_statements.size();
return size == 1 ? m_statements[0] : 0;
}
// -----------------------------ScopeNodeData ---------------------------
ScopeNodeData::ScopeNodeData(ParserArena& arena, SourceElements* statements, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, int numConstants)
: m_numConstants(numConstants)
, m_statements(statements)
{
m_arena.swap(arena);
if (varStack)
m_varStack.swap(*varStack);
if (funcStack)
m_functionStack.swap(*funcStack);
m_capturedVariables.swap(capturedVariables);
}
// ------------------------------ ScopeNode -----------------------------
ScopeNode::ScopeNode(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
: StatementNode(lineNumber)
, ParserArenaRefCounted(globalData)
, m_features(inStrictContext ? StrictModeFeature : NoFeatures)
{
}
ScopeNode::ScopeNode(JSGlobalData* globalData, int lineNumber, const SourceCode& source, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, CodeFeatures features, int numConstants)
: StatementNode(lineNumber)
, ParserArenaRefCounted(globalData)
, m_data(adoptPtr(new ScopeNodeData(*globalData->parserArena, children, varStack, funcStack, capturedVariables, numConstants)))
, m_features(features)
, m_source(source)
{
}
StatementNode* ScopeNode::singleStatement() const
{
return m_data->m_statements ? m_data->m_statements->singleStatement() : 0;
}
// ------------------------------ ProgramNode -----------------------------
inline ProgramNode::ProgramNode(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
: ScopeNode(globalData, lineNumber, source, children, varStack, funcStack, capturedVariables, features, numConstants)
{
}
PassRefPtr<ProgramNode> ProgramNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
{
RefPtr<ProgramNode> node = new ProgramNode(globalData, lineNumber, children, varStack, funcStack, capturedVariables, source, features, numConstants);
ASSERT(node->data()->m_arena.last() == node);
node->data()->m_arena.removeLast();
ASSERT(!node->data()->m_arena.contains(node.get()));
return node.release();
}
// ------------------------------ EvalNode -----------------------------
inline EvalNode::EvalNode(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
: ScopeNode(globalData, lineNumber, source, children, varStack, funcStack, capturedVariables, features, numConstants)
{
}
PassRefPtr<EvalNode> EvalNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
{
RefPtr<EvalNode> node = new EvalNode(globalData, lineNumber, children, varStack, funcStack, capturedVariables, source, features, numConstants);
ASSERT(node->data()->m_arena.last() == node);
node->data()->m_arena.removeLast();
ASSERT(!node->data()->m_arena.contains(node.get()));
return node.release();
}
// ------------------------------ FunctionBodyNode -----------------------------
FunctionParameters::FunctionParameters(ParameterNode* firstParameter)
{
for (ParameterNode* parameter = firstParameter; parameter; parameter = parameter->nextParam())
append(parameter->ident());
}
inline FunctionBodyNode::FunctionBodyNode(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
: ScopeNode(globalData, lineNumber, inStrictContext)
{
}
inline FunctionBodyNode::FunctionBodyNode(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& sourceCode, CodeFeatures features, int numConstants)
: ScopeNode(globalData, lineNumber, sourceCode, children, varStack, funcStack, capturedVariables, features, numConstants)
{
}
void FunctionBodyNode::finishParsing(const SourceCode& source, ParameterNode* firstParameter, const Identifier& ident)
{
setSource(source);
finishParsing(FunctionParameters::create(firstParameter), ident);
}
void FunctionBodyNode::finishParsing(PassRefPtr<FunctionParameters> parameters, const Identifier& ident)
{
ASSERT(!source().isNull());
m_parameters = parameters;
m_ident = ident;
}
FunctionBodyNode* FunctionBodyNode::create(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
{
return new FunctionBodyNode(globalData, lineNumber, inStrictContext);
}
PassRefPtr<FunctionBodyNode> FunctionBodyNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& sourceCode, CodeFeatures features, int numConstants)
{
RefPtr<FunctionBodyNode> node = new FunctionBodyNode(globalData, lineNumber, children, varStack, funcStack, capturedVariables, sourceCode, features, numConstants);
ASSERT(node->data()->m_arena.last() == node);
node->data()->m_arena.removeLast();
ASSERT(!node->data()->m_arena.contains(node.get()));
return node.release();
}
} // namespace JSC
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