JavaScriptCore-7600.1.4.16.1.tar.gz

[apple/javascriptcore.git] / parser / Nodes.cpp

diff --git a/parser/Nodes.cpp b/parser/Nodes.cpp
index c32e4c73a24ebeb233cd5e01fffd63a48685c886..bdc3bf8d8b4eea00e98d72823d7112615864b3d0 100644 (file)
--- a/parser/Nodes.cpp
+++ b/parser/Nodes.cpp
@@ -1,7 +1,7 @@
 /*
 *  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) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2013 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>
@@ -33,10 +33,10 @@
 #include "JIT.h"
 #include "JSFunction.h"
 #include "JSGlobalObject.h"
-#include "JSStaticScopeObject.h"
+#include "JSNameScope.h"
 #include "LabelScope.h"
 #include "Lexer.h"
-#include "Operations.h"
+#include "JSCInlines.h"
 #include "Parser.h"
 #include "PropertyNameArray.h"
 #include "RegExpObject.h"
@@ -52,10 +52,11 @@ namespace JSC {
 
 // ------------------------------ StatementNode --------------------------------
 
-void StatementNode::setLoc(int firstLine, int lastLine)
+void StatementNode::setLoc(unsigned firstLine, unsigned lastLine, int startOffset, int lineStartOffset)
 {
-    m_lineNumber = firstLine;
     m_lastLine = lastLine;
+    m_position = JSTextPosition(firstLine, startOffset, lineStartOffset);
+    ASSERT(m_position.offset >= m_position.lineStartOffset);
 }
 
 // ------------------------------ SourceElements --------------------------------
@@ -75,24 +76,30 @@ StatementNode* SourceElements::singleStatement() const
 
 // ------------------------------ ScopeNode -----------------------------
 
-ScopeNode::ScopeNode(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
-    : StatementNode(lineNumber)
-    , ParserArenaRefCounted(globalData)
+ScopeNode::ScopeNode(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, bool inStrictContext)
+    : StatementNode(endLocation)
+    , ParserArenaRefCounted(vm)
+    , m_startLineNumber(startLocation.line)
+    , m_startStartOffset(startLocation.startOffset)
+    , m_startLineStartOffset(startLocation.lineStartOffset)
     , m_features(inStrictContext ? StrictModeFeature : NoFeatures)
     , m_numConstants(0)
     , m_statements(0)
 {
 }
 
-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)
+ScopeNode::ScopeNode(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, const SourceCode& source, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, CodeFeatures features, int numConstants)
+    : StatementNode(endLocation)
+    , ParserArenaRefCounted(vm)
+    , m_startLineNumber(startLocation.line)
+    , m_startStartOffset(startLocation.startOffset)
+    , m_startLineStartOffset(startLocation.lineStartOffset)
     , m_features(features)
     , m_source(source)
     , m_numConstants(numConstants)
     , m_statements(children)
 {
-    m_arena.swap(*globalData->parserArena);
+    m_arena.swap(*vm->parserArena);
     if (varStack)
         m_varStack.swap(*varStack);
     if (funcStack)
@@ -107,14 +114,16 @@ StatementNode* ScopeNode::singleStatement() const
 
 // ------------------------------ 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)
+inline ProgramNode::ProgramNode(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned startColumn, unsigned endColumn, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
+    : ScopeNode(vm, startLocation, endLocation, source, children, varStack, funcStack, capturedVariables, features, numConstants)
+    , m_startColumn(startColumn)
+    , m_endColumn(endColumn)
 {
 }
 
-PassRefPtr<ProgramNode> ProgramNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
+PassRefPtr<ProgramNode> ProgramNode::create(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned startColumn, unsigned endColumn, 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);
+    RefPtr<ProgramNode> node = new ProgramNode(vm, startLocation, endLocation, startColumn, endColumn, children, varStack, funcStack,  capturedVariables, source, features, numConstants);
 
     ASSERT(node->m_arena.last() == node);
     node->m_arena.removeLast();
@@ -123,16 +132,23 @@ PassRefPtr<ProgramNode> ProgramNode::create(JSGlobalData* globalData, int lineNu
     return node.release();
 }
 
+
+void ProgramNode::setClosedVariables(Vector<RefPtr<StringImpl>>&& closedVariables)
+{
+    m_closedVariables = WTF::move(closedVariables);
+}
+
 // ------------------------------ 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)
+inline EvalNode::EvalNode(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned endColumn, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
+    : ScopeNode(vm, startLocation, endLocation, source, children, varStack, funcStack, capturedVariables, features, numConstants)
+    , m_endColumn(endColumn)
 {
 }
 
-PassRefPtr<EvalNode> EvalNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
+PassRefPtr<EvalNode> EvalNode::create(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned, unsigned endColumn, 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);
+    RefPtr<EvalNode> node = new EvalNode(vm, startLocation, endLocation, endColumn, children, varStack, funcStack, capturedVariables, source, features, numConstants);
 
     ASSERT(node->m_arena.last() == node);
     node->m_arena.removeLast();
@@ -143,43 +159,70 @@ PassRefPtr<EvalNode> EvalNode::create(JSGlobalData* globalData, int lineNumber,
 
 // ------------------------------ FunctionBodyNode -----------------------------
 
-FunctionParameters::FunctionParameters(ParameterNode* firstParameter)
+PassRefPtr<FunctionParameters> FunctionParameters::create(ParameterNode* firstParameter)
 {
+    unsigned parameterCount = 0;
     for (ParameterNode* parameter = firstParameter; parameter; parameter = parameter->nextParam())
-        append(parameter->ident());
+        ++parameterCount;
+
+    size_t objectSize = sizeof(FunctionParameters) - sizeof(void*) + sizeof(DeconstructionPatternNode*) * parameterCount;
+    void* slot = fastMalloc(objectSize);
+    return adoptRef(new (slot) FunctionParameters(firstParameter, parameterCount));
+}
+
+FunctionParameters::FunctionParameters(ParameterNode* firstParameter, unsigned size)
+    : m_size(size)
+{
+    unsigned i = 0;
+    for (ParameterNode* parameter = firstParameter; parameter; parameter = parameter->nextParam()) {
+        auto pattern = parameter->pattern();
+        pattern->ref();
+        patterns()[i++] = pattern;
+    }
+}
+
+FunctionParameters::~FunctionParameters()
+{
+    for (unsigned i = 0; i < m_size; ++i)
+        patterns()[i]->deref();
 }
 
-inline FunctionBodyNode::FunctionBodyNode(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
-    : ScopeNode(globalData, lineNumber, inStrictContext)
+inline FunctionBodyNode::FunctionBodyNode(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned startColumn, unsigned endColumn, bool inStrictContext)
+    : ScopeNode(vm, startLocation, endLocation, inStrictContext)
+    , m_startColumn(startColumn)
+    , m_endColumn(endColumn)
 {
 }
 
-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)
+inline FunctionBodyNode::FunctionBodyNode(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned startColumn, unsigned endColumn, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& sourceCode, CodeFeatures features, int numConstants)
+    : ScopeNode(vm, startLocation, endLocation, sourceCode, children, varStack, funcStack, capturedVariables, features, numConstants)
+    , m_startColumn(startColumn)
+    , m_endColumn(endColumn)
 {
 }
 
-void FunctionBodyNode::finishParsing(const SourceCode& source, ParameterNode* firstParameter, const Identifier& ident)
+void FunctionBodyNode::finishParsing(const SourceCode& source, ParameterNode* firstParameter, const Identifier& ident, enum FunctionMode functionMode)
 {
     setSource(source);
-    finishParsing(FunctionParameters::create(firstParameter), ident);
+    finishParsing(FunctionParameters::create(firstParameter), ident, functionMode);
 }
 
-void FunctionBodyNode::finishParsing(PassRefPtr<FunctionParameters> parameters, const Identifier& ident)
+void FunctionBodyNode::finishParsing(PassRefPtr<FunctionParameters> parameters, const Identifier& ident, enum FunctionMode functionMode)
 {
     ASSERT(!source().isNull());
     m_parameters = parameters;
     m_ident = ident;
+    m_functionMode = functionMode;
 }
 
-FunctionBodyNode* FunctionBodyNode::create(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
+FunctionBodyNode* FunctionBodyNode::create(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned startColumn, unsigned endColumn, bool inStrictContext)
 {
-    return new FunctionBodyNode(globalData, lineNumber, inStrictContext);
+    return new FunctionBodyNode(vm, startLocation, endLocation, startColumn, endColumn, inStrictContext);
 }
 
-PassRefPtr<FunctionBodyNode> FunctionBodyNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& sourceCode, CodeFeatures features, int numConstants)
+PassRefPtr<FunctionBodyNode> FunctionBodyNode::create(VM* vm, const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned startColumn, unsigned endColumn, 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);
+    RefPtr<FunctionBodyNode> node = new FunctionBodyNode(vm, startLocation, endLocation, startColumn, endColumn , children, varStack, funcStack, capturedVariables, sourceCode, features, numConstants);
 
     ASSERT(node->m_arena.last() == node);
     node->m_arena.removeLast();
@@ -188,4 +231,10 @@ PassRefPtr<FunctionBodyNode> FunctionBodyNode::create(JSGlobalData* globalData,
     return node.release();
 }
 
+void FunctionBodyNode::setEndPosition(JSTextPosition position)
+{
+    m_lastLine = position.line;
+    m_endColumn = position.offset - position.lineStartOffset;
+}
+
 } // namespace JSC