Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 196 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/parser/Nodes.cpp b/Source/JavaScriptCore/parser/Nodes.cpp
new file mode 100644
index 000000000..8ad474e54
--- /dev/null
+++ b/Source/JavaScriptCore/parser/Nodes.cpp
@@ -0,0 +1,196 @@
+/*
+*  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