diff options
Diffstat (limited to 'Source/JavaScriptCore/parser/ASTBuilder.h')
| -rw-r--r-- | Source/JavaScriptCore/parser/ASTBuilder.h | 991 |
1 files changed, 710 insertions, 281 deletions
diff --git a/Source/JavaScriptCore/parser/ASTBuilder.h b/Source/JavaScriptCore/parser/ASTBuilder.h index 8ec1fd32a..b5d89dc91 100644 --- a/Source/JavaScriptCore/parser/ASTBuilder.h +++ b/Source/JavaScriptCore/parser/ASTBuilder.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2010, 2013 Apple Inc. All rights reserved. + * Copyright (C) 2010, 2013, 2016 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -23,11 +23,14 @@ * THE POSSIBILITY OF SUCH DAMAGE. */ -#ifndef ASTBuilder_h -#define ASTBuilder_h +#pragma once +#include "BuiltinNames.h" +#include "BytecodeIntrinsicRegistry.h" +#include "MathCommon.h" #include "NodeConstructors.h" #include "SyntaxChecker.h" +#include "VariableEnvironment.h" #include <utility> namespace JSC { @@ -75,10 +78,10 @@ class ASTBuilder { Operator m_op; }; public: - ASTBuilder(VM* vm, SourceCode* sourceCode) + ASTBuilder(VM* vm, ParserArena& parserArena, SourceCode* sourceCode) : m_vm(vm) + , m_parserArena(parserArena) , m_sourceCode(sourceCode) - , m_scope(vm) , m_evalCount(0) { } @@ -90,9 +93,6 @@ public: UnaryExprContext(ASTBuilder&) {} }; - - typedef SyntaxChecker FunctionBodyBuilder; - typedef ExpressionNode* Expression; typedef JSC::SourceElements* SourceElements; typedef ArgumentsNode* Arguments; @@ -101,17 +101,27 @@ public: typedef PropertyListNode* PropertyList; typedef ElementNode* ElementList; typedef ArgumentListNode* ArgumentsList; - typedef ParameterNode* FormalParameterList; - typedef FunctionBodyNode* FunctionBody; + typedef TemplateExpressionListNode* TemplateExpressionList; + typedef TemplateStringNode* TemplateString; + typedef TemplateStringListNode* TemplateStringList; + typedef TemplateLiteralNode* TemplateLiteral; + typedef FunctionParameters* FormalParameterList; + typedef FunctionMetadataNode* FunctionBody; + typedef ClassExprNode* ClassExpression; + typedef ModuleNameNode* ModuleName; + typedef ImportSpecifierNode* ImportSpecifier; + typedef ImportSpecifierListNode* ImportSpecifierList; + typedef ExportSpecifierNode* ExportSpecifier; + typedef ExportSpecifierListNode* ExportSpecifierList; typedef StatementNode* Statement; typedef ClauseListNode* ClauseList; typedef CaseClauseNode* Clause; - typedef ConstDeclNode* ConstDeclList; typedef std::pair<ExpressionNode*, BinaryOpInfo> BinaryOperand; - typedef RefPtr<DeconstructionPatternNode> DeconstructionPattern; - typedef RefPtr<ArrayPatternNode> ArrayPattern; - typedef RefPtr<ObjectPatternNode> ObjectPattern; - typedef RefPtr<BindingNode> BindingPattern; + typedef DestructuringPatternNode* DestructuringPattern; + typedef ArrayPatternNode* ArrayPattern; + typedef ObjectPatternNode* ObjectPattern; + typedef BindingNode* BindingPattern; + typedef AssignmentElementNode* AssignmentElement; static const bool CreatesAST = true; static const bool NeedsFreeVariableInfo = true; static const bool CanUseFunctionCache = true; @@ -121,17 +131,11 @@ public: ExpressionNode* makeBinaryNode(const JSTokenLocation&, int token, std::pair<ExpressionNode*, BinaryOpInfo>, std::pair<ExpressionNode*, BinaryOpInfo>); ExpressionNode* makeFunctionCallNode(const JSTokenLocation&, ExpressionNode* func, ArgumentsNode* args, const JSTextPosition& divotStart, const JSTextPosition& divot, const JSTextPosition& divotEnd); - JSC::SourceElements* createSourceElements() { return new (m_vm) JSC::SourceElements(); } + JSC::SourceElements* createSourceElements() { return new (m_parserArena) JSC::SourceElements(); } - ParserArenaData<DeclarationStacks::VarStack>* varDeclarations() { return m_scope.m_varDeclarations; } - ParserArenaData<DeclarationStacks::FunctionStack>* funcDeclarations() { return m_scope.m_funcDeclarations; } int features() const { return m_scope.m_features; } int numConstants() const { return m_scope.m_numConstants; } - void appendToComma(CommaNode* commaNode, ExpressionNode* expr) { commaNode->append(expr); } - - CommaNode* createCommaExpr(const JSTokenLocation& location, ExpressionNode* lhs, ExpressionNode* rhs) { return new (m_vm) CommaNode(location, lhs, rhs); } - ExpressionNode* makeAssignNode(const JSTokenLocation&, ExpressionNode* left, Operator, ExpressionNode* right, bool leftHasAssignments, bool rightHasAssignments, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end); ExpressionNode* makePrefixNode(const JSTokenLocation&, ExpressionNode*, Operator, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end); ExpressionNode* makePostfixNode(const JSTokenLocation&, ExpressionNode*, Operator, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end); @@ -139,6 +143,7 @@ public: ExpressionNode* makeDeleteNode(const JSTokenLocation&, ExpressionNode*, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end); ExpressionNode* makeNegateNode(const JSTokenLocation&, ExpressionNode*); ExpressionNode* makeBitwiseNotNode(const JSTokenLocation&, ExpressionNode*); + ExpressionNode* makePowNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments); ExpressionNode* makeMultNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments); ExpressionNode* makeDivNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments); ExpressionNode* makeModNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments); @@ -156,92 +161,167 @@ public: if (expr->isNumber()) return createBoolean(location, isZeroOrUnordered(static_cast<NumberNode*>(expr)->value())); - return new (m_vm) LogicalNotNode(location, expr); + return new (m_parserArena) LogicalNotNode(location, expr); } - ExpressionNode* createUnaryPlus(const JSTokenLocation& location, ExpressionNode* expr) { return new (m_vm) UnaryPlusNode(location, expr); } + ExpressionNode* createUnaryPlus(const JSTokenLocation& location, ExpressionNode* expr) { return new (m_parserArena) UnaryPlusNode(location, expr); } ExpressionNode* createVoid(const JSTokenLocation& location, ExpressionNode* expr) { incConstants(); - return new (m_vm) VoidNode(location, expr); + return new (m_parserArena) VoidNode(location, expr); } - ExpressionNode* thisExpr(const JSTokenLocation& location) + ExpressionNode* createThisExpr(const JSTokenLocation& location) { usesThis(); - return new (m_vm) ThisNode(location); + return new (m_parserArena) ThisNode(location); } - ExpressionNode* createResolve(const JSTokenLocation& location, const Identifier* ident, const JSTextPosition& start) + ExpressionNode* createSuperExpr(const JSTokenLocation& location) { - if (m_vm->propertyNames->arguments == *ident) + return new (m_parserArena) SuperNode(location); + } + ExpressionNode* createImportExpr(const JSTokenLocation& location, ExpressionNode* expr, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) + { + auto* node = new (m_parserArena) ImportNode(location, expr); + setExceptionLocation(node, start, divot, end); + return node; + } + ExpressionNode* createNewTargetExpr(const JSTokenLocation location) + { + usesNewTarget(); + return new (m_parserArena) NewTargetNode(location); + } + bool isNewTarget(ExpressionNode* node) { return node->isNewTarget(); } + ExpressionNode* createResolve(const JSTokenLocation& location, const Identifier& ident, const JSTextPosition& start, const JSTextPosition& end) + { + if (m_vm->propertyNames->arguments == ident) usesArguments(); - return new (m_vm) ResolveNode(location, *ident, start); + + if (ident.isSymbol()) { + if (BytecodeIntrinsicNode::EmitterType emitter = m_vm->bytecodeIntrinsicRegistry().lookup(ident)) + return new (m_parserArena) BytecodeIntrinsicNode(BytecodeIntrinsicNode::Type::Constant, location, emitter, ident, nullptr, start, start, end); + } + + return new (m_parserArena) ResolveNode(location, ident, start); } - ExpressionNode* createObjectLiteral(const JSTokenLocation& location) { return new (m_vm) ObjectLiteralNode(location); } - ExpressionNode* createObjectLiteral(const JSTokenLocation& location, PropertyListNode* properties) { return new (m_vm) ObjectLiteralNode(location, properties); } + ExpressionNode* createObjectLiteral(const JSTokenLocation& location) { return new (m_parserArena) ObjectLiteralNode(location); } + ExpressionNode* createObjectLiteral(const JSTokenLocation& location, PropertyListNode* properties) { return new (m_parserArena) ObjectLiteralNode(location, properties); } ExpressionNode* createArray(const JSTokenLocation& location, int elisions) { if (elisions) incConstants(); - return new (m_vm) ArrayNode(location, elisions); + return new (m_parserArena) ArrayNode(location, elisions); } - ExpressionNode* createArray(const JSTokenLocation& location, ElementNode* elems) { return new (m_vm) ArrayNode(location, elems); } + ExpressionNode* createArray(const JSTokenLocation& location, ElementNode* elems) { return new (m_parserArena) ArrayNode(location, elems); } ExpressionNode* createArray(const JSTokenLocation& location, int elisions, ElementNode* elems) { if (elisions) incConstants(); - return new (m_vm) ArrayNode(location, elisions, elems); + return new (m_parserArena) ArrayNode(location, elisions, elems); } - ExpressionNode* createNumberExpr(const JSTokenLocation& location, double d) + ExpressionNode* createDoubleExpr(const JSTokenLocation& location, double d) { incConstants(); - return new (m_vm) NumberNode(location, d); + return new (m_parserArena) DoubleNode(location, d); + } + ExpressionNode* createIntegerExpr(const JSTokenLocation& location, double d) + { + incConstants(); + return new (m_parserArena) IntegerNode(location, d); } ExpressionNode* createString(const JSTokenLocation& location, const Identifier* string) { incConstants(); - return new (m_vm) StringNode(location, *string); + return new (m_parserArena) StringNode(location, *string); } ExpressionNode* createBoolean(const JSTokenLocation& location, bool b) { incConstants(); - return new (m_vm) BooleanNode(location, b); + return new (m_parserArena) BooleanNode(location, b); } ExpressionNode* createNull(const JSTokenLocation& location) { incConstants(); - return new (m_vm) NullNode(location); + return new (m_parserArena) NullNode(location); } ExpressionNode* createBracketAccess(const JSTokenLocation& location, ExpressionNode* base, ExpressionNode* property, bool propertyHasAssignments, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) { - BracketAccessorNode* node = new (m_vm) BracketAccessorNode(location, base, property, propertyHasAssignments); + if (base->isSuperNode()) + usesSuperProperty(); + + BracketAccessorNode* node = new (m_parserArena) BracketAccessorNode(location, base, property, propertyHasAssignments); setExceptionLocation(node, start, divot, end); return node; } ExpressionNode* createDotAccess(const JSTokenLocation& location, ExpressionNode* base, const Identifier* property, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) { - DotAccessorNode* node = new (m_vm) DotAccessorNode(location, base, *property); + if (base->isSuperNode()) + usesSuperProperty(); + + DotAccessorNode* node = new (m_parserArena) DotAccessorNode(location, base, *property); setExceptionLocation(node, start, divot, end); return node; } ExpressionNode* createSpreadExpression(const JSTokenLocation& location, ExpressionNode* expression, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) { - auto node = new (m_vm) SpreadExpressionNode(location, expression); + auto node = new (m_parserArena) SpreadExpressionNode(location, expression); + setExceptionLocation(node, start, divot, end); + return node; + } + + TemplateStringNode* createTemplateString(const JSTokenLocation& location, const Identifier* cooked, const Identifier* raw) + { + return new (m_parserArena) TemplateStringNode(location, cooked, raw); + } + + TemplateStringListNode* createTemplateStringList(TemplateStringNode* templateString) + { + return new (m_parserArena) TemplateStringListNode(templateString); + } + + TemplateStringListNode* createTemplateStringList(TemplateStringListNode* templateStringList, TemplateStringNode* templateString) + { + return new (m_parserArena) TemplateStringListNode(templateStringList, templateString); + } + + TemplateExpressionListNode* createTemplateExpressionList(ExpressionNode* expression) + { + return new (m_parserArena) TemplateExpressionListNode(expression); + } + + TemplateExpressionListNode* createTemplateExpressionList(TemplateExpressionListNode* templateExpressionListNode, ExpressionNode* expression) + { + return new (m_parserArena) TemplateExpressionListNode(templateExpressionListNode, expression); + } + + TemplateLiteralNode* createTemplateLiteral(const JSTokenLocation& location, TemplateStringListNode* templateStringList) + { + return new (m_parserArena) TemplateLiteralNode(location, templateStringList); + } + + TemplateLiteralNode* createTemplateLiteral(const JSTokenLocation& location, TemplateStringListNode* templateStringList, TemplateExpressionListNode* templateExpressionList) + { + return new (m_parserArena) TemplateLiteralNode(location, templateStringList, templateExpressionList); + } + + ExpressionNode* createTaggedTemplate(const JSTokenLocation& location, ExpressionNode* base, TemplateLiteralNode* templateLiteral, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) + { + auto node = new (m_parserArena) TaggedTemplateNode(location, base, templateLiteral); setExceptionLocation(node, start, divot, end); return node; } ExpressionNode* createRegExp(const JSTokenLocation& location, const Identifier& pattern, const Identifier& flags, const JSTextPosition& start) { - if (Yarr::checkSyntax(pattern.string())) + if (Yarr::checkSyntax(pattern.string(), flags.string())) return 0; - RegExpNode* node = new (m_vm) RegExpNode(location, pattern, flags); + RegExpNode* node = new (m_parserArena) RegExpNode(location, pattern, flags); int size = pattern.length() + 2; // + 2 for the two /'s JSTextPosition end = start + size; setExceptionLocation(node, start, end, end); @@ -250,201 +330,338 @@ public: ExpressionNode* createNewExpr(const JSTokenLocation& location, ExpressionNode* expr, ArgumentsNode* arguments, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) { - NewExprNode* node = new (m_vm) NewExprNode(location, expr, arguments); + NewExprNode* node = new (m_parserArena) NewExprNode(location, expr, arguments); setExceptionLocation(node, start, divot, end); return node; } ExpressionNode* createNewExpr(const JSTokenLocation& location, ExpressionNode* expr, const JSTextPosition& start, const JSTextPosition& end) { - NewExprNode* node = new (m_vm) NewExprNode(location, expr); + NewExprNode* node = new (m_parserArena) NewExprNode(location, expr); setExceptionLocation(node, start, end, end); return node; } ExpressionNode* createConditionalExpr(const JSTokenLocation& location, ExpressionNode* condition, ExpressionNode* lhs, ExpressionNode* rhs) { - return new (m_vm) ConditionalNode(location, condition, lhs, rhs); + return new (m_parserArena) ConditionalNode(location, condition, lhs, rhs); } - ExpressionNode* createAssignResolve(const JSTokenLocation& location, const Identifier& ident, ExpressionNode* rhs, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) + ExpressionNode* createAssignResolve(const JSTokenLocation& location, const Identifier& ident, ExpressionNode* rhs, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end, AssignmentContext assignmentContext) { - if (rhs->isFuncExprNode()) - static_cast<FuncExprNode*>(rhs)->body()->setInferredName(ident); - AssignResolveNode* node = new (m_vm) AssignResolveNode(location, ident, rhs); + if (rhs->isBaseFuncExprNode()) { + auto metadata = static_cast<BaseFuncExprNode*>(rhs)->metadata(); + metadata->setEcmaName(ident); + metadata->setInferredName(ident); + } else if (rhs->isClassExprNode()) + static_cast<ClassExprNode*>(rhs)->setEcmaName(ident); + AssignResolveNode* node = new (m_parserArena) AssignResolveNode(location, ident, rhs, assignmentContext); setExceptionLocation(node, start, divot, end); return node; } - ExpressionNode* createFunctionExpr(const JSTokenLocation& location, const Identifier* name, FunctionBodyNode* body, ParameterNode* parameters, unsigned openBraceOffset, unsigned closeBraceOffset, int bodyStartLine, int bodyEndLine, unsigned startColumn) + YieldExprNode* createYield(const JSTokenLocation& location) { - FuncExprNode* result = new (m_vm) FuncExprNode(location, *name, body, m_sourceCode->subExpression(openBraceOffset, closeBraceOffset, bodyStartLine, startColumn), parameters); - body->setLoc(bodyStartLine, bodyEndLine, location.startOffset, location.lineStartOffset); + return new (m_parserArena) YieldExprNode(location, nullptr, /* delegate */ false); + } + + YieldExprNode* createYield(const JSTokenLocation& location, ExpressionNode* argument, bool delegate, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) + { + YieldExprNode* node = new (m_parserArena) YieldExprNode(location, argument, delegate); + setExceptionLocation(node, start, divot, end); + return node; + } + + AwaitExprNode* createAwait(const JSTokenLocation& location, ExpressionNode* argument, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) + { + ASSERT(argument); + AwaitExprNode* node = new (m_parserArena) AwaitExprNode(location, argument); + setExceptionLocation(node, start, divot, end); + return node; + } + + ClassExprNode* createClassExpr(const JSTokenLocation& location, const ParserClassInfo<ASTBuilder>& classInfo, VariableEnvironment& classEnvironment, ExpressionNode* constructor, + ExpressionNode* parentClass, PropertyListNode* instanceMethods, PropertyListNode* staticMethods) + { + SourceCode source = m_sourceCode->subExpression(classInfo.startOffset, classInfo.endOffset, classInfo.startLine, classInfo.startColumn); + return new (m_parserArena) ClassExprNode(location, *classInfo.className, source, classEnvironment, constructor, parentClass, instanceMethods, staticMethods); + } + + ExpressionNode* createFunctionExpr(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo) + { + FuncExprNode* result = new (m_parserArena) FuncExprNode(location, *functionInfo.name, functionInfo.body, + m_sourceCode->subExpression(functionInfo.startOffset, functionInfo.endOffset, functionInfo.startLine, functionInfo.parametersStartColumn)); + functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset); return result; } - FunctionBodyNode* createFunctionBody(const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, unsigned startColumn, unsigned endColumn, bool inStrictContext) + ExpressionNode* createGeneratorFunctionBody(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo, const Identifier& name) { - return FunctionBodyNode::create(m_vm, startLocation, endLocation, startColumn, endColumn, inStrictContext); + FuncExprNode* result = static_cast<FuncExprNode*>(createFunctionExpr(location, functionInfo)); + if (!name.isNull()) + result->metadata()->setInferredName(name); + return result; } - void setFunctionNameStart(FunctionBodyNode* body, int functionNameStart) + ExpressionNode* createAsyncFunctionBody(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo, SourceParseMode parseMode) { - body->setFunctionNameStart(functionNameStart); + if (parseMode == SourceParseMode::AsyncArrowFunctionBodyMode) { + SourceCode source = m_sourceCode->subExpression(functionInfo.startOffset, functionInfo.body->isArrowFunctionBodyExpression() ? functionInfo.endOffset - 1 : functionInfo.endOffset, functionInfo.startLine, functionInfo.parametersStartColumn); + FuncExprNode* result = new (m_parserArena) FuncExprNode(location, *functionInfo.name, functionInfo.body, source); + functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset); + return result; + } + return createFunctionExpr(location, functionInfo); } - - NEVER_INLINE PropertyNode* createGetterOrSetterProperty(const JSTokenLocation& location, PropertyNode::Type type, bool, const Identifier* name, ParameterNode* params, FunctionBodyNode* body, unsigned openBraceOffset, unsigned closeBraceOffset, int bodyStartLine, int bodyEndLine, unsigned bodyStartColumn) + + ExpressionNode* createMethodDefinition(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo) { - ASSERT(name); - body->setLoc(bodyStartLine, bodyEndLine, location.startOffset, location.lineStartOffset); - body->setInferredName(*name); - return new (m_vm) PropertyNode(m_vm, *name, new (m_vm) FuncExprNode(location, m_vm->propertyNames->nullIdentifier, body, m_sourceCode->subExpression(openBraceOffset, closeBraceOffset, bodyStartLine, bodyStartColumn), params), type); + MethodDefinitionNode* result = new (m_parserArena) MethodDefinitionNode(location, *functionInfo.name, functionInfo.body, + m_sourceCode->subExpression(functionInfo.startOffset, functionInfo.endOffset, functionInfo.startLine, functionInfo.parametersStartColumn)); + functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset); + return result; } - NEVER_INLINE PropertyNode* createGetterOrSetterProperty(VM*, const JSTokenLocation& location, PropertyNode::Type type, bool, double name, ParameterNode* params, FunctionBodyNode* body, unsigned openBraceOffset, unsigned closeBraceOffset, int bodyStartLine, int bodyEndLine, unsigned bodyStartColumn) + FunctionMetadataNode* createFunctionMetadata( + const JSTokenLocation& startLocation, const JSTokenLocation& endLocation, + unsigned startColumn, unsigned endColumn, int functionKeywordStart, + int functionNameStart, int parametersStart, bool inStrictContext, + ConstructorKind constructorKind, SuperBinding superBinding, + unsigned parameterCount, + SourceParseMode mode, bool isArrowFunctionBodyExpression) + { + return new (m_parserArena) FunctionMetadataNode( + m_parserArena, startLocation, endLocation, startColumn, endColumn, + functionKeywordStart, functionNameStart, parametersStart, + inStrictContext, constructorKind, superBinding, + parameterCount, mode, isArrowFunctionBodyExpression); + } + + ExpressionNode* createArrowFunctionExpr(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo) + { + usesArrowFunction(); + SourceCode source = m_sourceCode->subExpression(functionInfo.startOffset, functionInfo.body->isArrowFunctionBodyExpression() ? functionInfo.endOffset - 1 : functionInfo.endOffset, functionInfo.startLine, functionInfo.parametersStartColumn); + ArrowFuncExprNode* result = new (m_parserArena) ArrowFuncExprNode(location, *functionInfo.name, functionInfo.body, source); + functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset); + return result; + } + + NEVER_INLINE PropertyNode* createGetterOrSetterProperty(const JSTokenLocation& location, PropertyNode::Type type, bool, + const Identifier* name, const ParserFunctionInfo<ASTBuilder>& functionInfo, bool isClassProperty) { - body->setLoc(bodyStartLine, bodyEndLine, location.startOffset, location.lineStartOffset); - return new (m_vm) PropertyNode(m_vm, name, new (m_vm) FuncExprNode(location, m_vm->propertyNames->nullIdentifier, body, m_sourceCode->subExpression(openBraceOffset, closeBraceOffset, bodyStartLine, bodyStartColumn), params), type); + ASSERT(name); + functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset); + functionInfo.body->setEcmaName(*name); + functionInfo.body->setInferredName(*name); + SourceCode source = m_sourceCode->subExpression(functionInfo.startOffset, functionInfo.endOffset, functionInfo.startLine, functionInfo.parametersStartColumn); + MethodDefinitionNode* methodDef = new (m_parserArena) MethodDefinitionNode(location, m_vm->propertyNames->nullIdentifier, functionInfo.body, source); + return new (m_parserArena) PropertyNode(*name, methodDef, type, PropertyNode::Unknown, SuperBinding::Needed, isClassProperty); } - ArgumentsNode* createArguments() { return new (m_vm) ArgumentsNode(); } - ArgumentsNode* createArguments(ArgumentListNode* args) { return new (m_vm) ArgumentsNode(args); } - ArgumentListNode* createArgumentsList(const JSTokenLocation& location, ExpressionNode* arg) { return new (m_vm) ArgumentListNode(location, arg); } - ArgumentListNode* createArgumentsList(const JSTokenLocation& location, ArgumentListNode* args, ExpressionNode* arg) { return new (m_vm) ArgumentListNode(location, args, arg); } + NEVER_INLINE PropertyNode* createGetterOrSetterProperty(const JSTokenLocation& location, PropertyNode::Type type, bool, + ExpressionNode* name, const ParserFunctionInfo<ASTBuilder>& functionInfo, bool isClassProperty) + { + ASSERT(name); + functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset); + SourceCode source = m_sourceCode->subExpression(functionInfo.startOffset, functionInfo.endOffset, functionInfo.startLine, functionInfo.parametersStartColumn); + MethodDefinitionNode* methodDef = new (m_parserArena) MethodDefinitionNode(location, m_vm->propertyNames->nullIdentifier, functionInfo.body, source); + return new (m_parserArena) PropertyNode(name, methodDef, type, PropertyNode::Unknown, SuperBinding::Needed, isClassProperty); + } - PropertyNode* createProperty(const Identifier* propertyName, ExpressionNode* node, PropertyNode::Type type, bool) + NEVER_INLINE PropertyNode* createGetterOrSetterProperty(VM* vm, ParserArena& parserArena, const JSTokenLocation& location, PropertyNode::Type type, bool, + double name, const ParserFunctionInfo<ASTBuilder>& functionInfo, bool isClassProperty) { - if (node->isFuncExprNode()) - static_cast<FuncExprNode*>(node)->body()->setInferredName(*propertyName); - return new (m_vm) PropertyNode(m_vm, *propertyName, node, type); + functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset); + const Identifier& ident = parserArena.identifierArena().makeNumericIdentifier(vm, name); + SourceCode source = m_sourceCode->subExpression(functionInfo.startOffset, functionInfo.endOffset, functionInfo.startLine, functionInfo.parametersStartColumn); + MethodDefinitionNode* methodDef = new (m_parserArena) MethodDefinitionNode(location, vm->propertyNames->nullIdentifier, functionInfo.body, source); + return new (m_parserArena) PropertyNode(ident, methodDef, type, PropertyNode::Unknown, SuperBinding::Needed, isClassProperty); } - PropertyNode* createProperty(VM*, double propertyName, ExpressionNode* node, PropertyNode::Type type, bool) { return new (m_vm) PropertyNode(m_vm, propertyName, node, type); } - PropertyNode* createProperty(VM*, ExpressionNode* propertyName, ExpressionNode* node, PropertyNode::Type type, bool) { return new (m_vm) PropertyNode(m_vm, propertyName, node, type); } - PropertyListNode* createPropertyList(const JSTokenLocation& location, PropertyNode* property) { return new (m_vm) PropertyListNode(location, property); } - PropertyListNode* createPropertyList(const JSTokenLocation& location, PropertyNode* property, PropertyListNode* tail) { return new (m_vm) PropertyListNode(location, property, tail); } - ElementNode* createElementList(int elisions, ExpressionNode* expr) { return new (m_vm) ElementNode(elisions, expr); } - ElementNode* createElementList(ElementNode* elems, int elisions, ExpressionNode* expr) { return new (m_vm) ElementNode(elems, elisions, expr); } + ArgumentsNode* createArguments() { return new (m_parserArena) ArgumentsNode(); } + ArgumentsNode* createArguments(ArgumentListNode* args) { return new (m_parserArena) ArgumentsNode(args); } + ArgumentListNode* createArgumentsList(const JSTokenLocation& location, ExpressionNode* arg) { return new (m_parserArena) ArgumentListNode(location, arg); } + ArgumentListNode* createArgumentsList(const JSTokenLocation& location, ArgumentListNode* args, ExpressionNode* arg) { return new (m_parserArena) ArgumentListNode(location, args, arg); } - ParameterNode* createFormalParameterList(DeconstructionPattern pattern) { return new (m_vm) ParameterNode(pattern); } - ParameterNode* createFormalParameterList(ParameterNode* list, DeconstructionPattern pattern) { return new (m_vm) ParameterNode(list, pattern); } + PropertyNode* createProperty(const Identifier* propertyName, ExpressionNode* node, PropertyNode::Type type, PropertyNode::PutType putType, bool, SuperBinding superBinding, bool isClassProperty) + { + if (node->isBaseFuncExprNode()) { + auto metadata = static_cast<BaseFuncExprNode*>(node)->metadata(); + metadata->setEcmaName(*propertyName); + metadata->setInferredName(*propertyName); + } else if (node->isClassExprNode()) + static_cast<ClassExprNode*>(node)->setEcmaName(*propertyName); + return new (m_parserArena) PropertyNode(*propertyName, node, type, putType, superBinding, isClassProperty); + } + PropertyNode* createProperty(VM* vm, ParserArena& parserArena, double propertyName, ExpressionNode* node, PropertyNode::Type type, PropertyNode::PutType putType, bool, SuperBinding superBinding, bool isClassProperty) + { + return new (m_parserArena) PropertyNode(parserArena.identifierArena().makeNumericIdentifier(vm, propertyName), node, type, putType, superBinding, isClassProperty); + } + PropertyNode* createProperty(ExpressionNode* propertyName, ExpressionNode* node, PropertyNode::Type type, PropertyNode::PutType putType, bool, SuperBinding superBinding, bool isClassProperty) { return new (m_parserArena) PropertyNode(propertyName, node, type, putType, superBinding, isClassProperty); } + PropertyListNode* createPropertyList(const JSTokenLocation& location, PropertyNode* property) { return new (m_parserArena) PropertyListNode(location, property); } + PropertyListNode* createPropertyList(const JSTokenLocation& location, PropertyNode* property, PropertyListNode* tail) { return new (m_parserArena) PropertyListNode(location, property, tail); } + + ElementNode* createElementList(int elisions, ExpressionNode* expr) { return new (m_parserArena) ElementNode(elisions, expr); } + ElementNode* createElementList(ElementNode* elems, int elisions, ExpressionNode* expr) { return new (m_parserArena) ElementNode(elems, elisions, expr); } + ElementNode* createElementList(ArgumentListNode* elems) + { + ElementNode* head = new (m_parserArena) ElementNode(0, elems->m_expr); + ElementNode* tail = head; + elems = elems->m_next; + while (elems) { + tail = new (m_parserArena) ElementNode(tail, 0, elems->m_expr); + elems = elems->m_next; + } + return head; + } - CaseClauseNode* createClause(ExpressionNode* expr, JSC::SourceElements* statements) { return new (m_vm) CaseClauseNode(expr, statements); } - ClauseListNode* createClauseList(CaseClauseNode* clause) { return new (m_vm) ClauseListNode(clause); } - ClauseListNode* createClauseList(ClauseListNode* tail, CaseClauseNode* clause) { return new (m_vm) ClauseListNode(tail, clause); } + FormalParameterList createFormalParameterList() { return new (m_parserArena) FunctionParameters(); } + void appendParameter(FormalParameterList list, DestructuringPattern pattern, ExpressionNode* defaultValue) + { + list->append(pattern, defaultValue); + tryInferNameInPattern(pattern, defaultValue); + } - void setUsesArguments(FunctionBodyNode* node) { node->setUsesArguments(); } + CaseClauseNode* createClause(ExpressionNode* expr, JSC::SourceElements* statements) { return new (m_parserArena) CaseClauseNode(expr, statements); } + ClauseListNode* createClauseList(CaseClauseNode* clause) { return new (m_parserArena) ClauseListNode(clause); } + ClauseListNode* createClauseList(ClauseListNode* tail, CaseClauseNode* clause) { return new (m_parserArena) ClauseListNode(tail, clause); } - StatementNode* createFuncDeclStatement(const JSTokenLocation& location, const Identifier* name, FunctionBodyNode* body, ParameterNode* parameters, unsigned openBraceOffset, unsigned closeBraceOffset, int bodyStartLine, int bodyEndLine, unsigned bodyStartColumn) + StatementNode* createFuncDeclStatement(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo) { - FuncDeclNode* decl = new (m_vm) FuncDeclNode(location, *name, body, m_sourceCode->subExpression(openBraceOffset, closeBraceOffset, bodyStartLine, bodyStartColumn), parameters); - if (*name == m_vm->propertyNames->arguments) + FuncDeclNode* decl = new (m_parserArena) FuncDeclNode(location, *functionInfo.name, functionInfo.body, + m_sourceCode->subExpression(functionInfo.startOffset, functionInfo.endOffset, functionInfo.startLine, functionInfo.parametersStartColumn)); + if (*functionInfo.name == m_vm->propertyNames->arguments) usesArguments(); - m_scope.m_funcDeclarations->data.append(decl->body()); - body->setLoc(bodyStartLine, bodyEndLine, location.startOffset, location.lineStartOffset); + functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset); return decl; } - StatementNode* createBlockStatement(const JSTokenLocation& location, JSC::SourceElements* elements, int startLine, int endLine) + StatementNode* createClassDeclStatement(const JSTokenLocation& location, ClassExprNode* classExpression, + const JSTextPosition& classStart, const JSTextPosition& classEnd, unsigned startLine, unsigned endLine) { - BlockNode* block = new (m_vm) BlockNode(location, elements); + ExpressionNode* assign = createAssignResolve(location, classExpression->name(), classExpression, classStart, classStart + 1, classEnd, AssignmentContext::DeclarationStatement); + ClassDeclNode* decl = new (m_parserArena) ClassDeclNode(location, assign); + decl->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); + return decl; + } + + StatementNode* createBlockStatement(const JSTokenLocation& location, JSC::SourceElements* elements, int startLine, int endLine, VariableEnvironment& lexicalVariables, DeclarationStacks::FunctionStack&& functionStack) + { + BlockNode* block = new (m_parserArena) BlockNode(location, elements, lexicalVariables, WTFMove(functionStack)); block->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); return block; } StatementNode* createExprStatement(const JSTokenLocation& location, ExpressionNode* expr, const JSTextPosition& start, int end) { - ExprStatementNode* result = new (m_vm) ExprStatementNode(location, expr); + ExprStatementNode* result = new (m_parserArena) ExprStatementNode(location, expr); result->setLoc(start.line, end, start.offset, start.lineStartOffset); return result; } StatementNode* createIfStatement(const JSTokenLocation& location, ExpressionNode* condition, StatementNode* trueBlock, StatementNode* falseBlock, int start, int end) { - IfElseNode* result = new (m_vm) IfElseNode(location, condition, trueBlock, falseBlock); + IfElseNode* result = new (m_parserArena) IfElseNode(location, condition, trueBlock, falseBlock); result->setLoc(start, end, location.startOffset, location.lineStartOffset); return result; } - StatementNode* createForLoop(const JSTokenLocation& location, ExpressionNode* initializer, ExpressionNode* condition, ExpressionNode* iter, StatementNode* statements, int start, int end) + StatementNode* createForLoop(const JSTokenLocation& location, ExpressionNode* initializer, ExpressionNode* condition, ExpressionNode* iter, StatementNode* statements, int start, int end, VariableEnvironment& lexicalVariables) { - ForNode* result = new (m_vm) ForNode(location, initializer, condition, iter, statements); + ForNode* result = new (m_parserArena) ForNode(location, initializer, condition, iter, statements, lexicalVariables); result->setLoc(start, end, location.startOffset, location.lineStartOffset); return result; } - StatementNode* createForInLoop(const JSTokenLocation& location, ExpressionNode* lhs, ExpressionNode* iter, StatementNode* statements, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end) + StatementNode* createForInLoop(const JSTokenLocation& location, ExpressionNode* lhs, ExpressionNode* iter, StatementNode* statements, const JSTokenLocation&, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end, VariableEnvironment& lexicalVariables) { - ForInNode* result = new (m_vm) ForInNode(location, lhs, iter, statements); + ForInNode* result = new (m_parserArena) ForInNode(location, lhs, iter, statements, lexicalVariables); result->setLoc(start, end, location.startOffset, location.lineStartOffset); setExceptionLocation(result, eStart, eDivot, eEnd); return result; } - StatementNode* createForInLoop(const JSTokenLocation& location, PassRefPtr<DeconstructionPatternNode> pattern, ExpressionNode* iter, StatementNode* statements, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end) + StatementNode* createForInLoop(const JSTokenLocation& location, DestructuringPatternNode* pattern, ExpressionNode* iter, StatementNode* statements, const JSTokenLocation& declLocation, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end, VariableEnvironment& lexicalVariables) { - ForInNode* result = new (m_vm) ForInNode(m_vm, location, pattern.get(), iter, statements); - result->setLoc(start, end, location.startOffset, location.lineStartOffset); - setExceptionLocation(result, eStart, eDivot, eEnd); - return result; + auto lexpr = new (m_parserArena) DestructuringAssignmentNode(declLocation, pattern, nullptr); + return createForInLoop(location, lexpr, iter, statements, declLocation, eStart, eDivot, eEnd, start, end, lexicalVariables); } - StatementNode* createForOfLoop(const JSTokenLocation& location, ExpressionNode* lhs, ExpressionNode* iter, StatementNode* statements, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end) + StatementNode* createForOfLoop(const JSTokenLocation& location, ExpressionNode* lhs, ExpressionNode* iter, StatementNode* statements, const JSTokenLocation&, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end, VariableEnvironment& lexicalVariables) { - ForOfNode* result = new (m_vm) ForOfNode(location, lhs, iter, statements); + ForOfNode* result = new (m_parserArena) ForOfNode(location, lhs, iter, statements, lexicalVariables); result->setLoc(start, end, location.startOffset, location.lineStartOffset); setExceptionLocation(result, eStart, eDivot, eEnd); return result; } - StatementNode* createForOfLoop(const JSTokenLocation& location, PassRefPtr<DeconstructionPatternNode> pattern, ExpressionNode* iter, StatementNode* statements, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end) + StatementNode* createForOfLoop(const JSTokenLocation& location, DestructuringPatternNode* pattern, ExpressionNode* iter, StatementNode* statements, const JSTokenLocation& declLocation, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end, VariableEnvironment& lexicalVariables) { - ForOfNode* result = new (m_vm) ForOfNode(m_vm, location, pattern.get(), iter, statements); - result->setLoc(start, end, location.startOffset, location.lineStartOffset); - setExceptionLocation(result, eStart, eDivot, eEnd); - return result; + auto lexpr = new (m_parserArena) DestructuringAssignmentNode(declLocation, pattern, nullptr); + return createForOfLoop(location, lexpr, iter, statements, declLocation, eStart, eDivot, eEnd, start, end, lexicalVariables); } - StatementNode* createEmptyStatement(const JSTokenLocation& location) { return new (m_vm) EmptyStatementNode(location); } + bool isBindingNode(const DestructuringPattern& pattern) + { + return pattern->isBindingNode(); + } - StatementNode* createVarStatement(const JSTokenLocation& location, ExpressionNode* expr, int start, int end) + bool isAssignmentLocation(const Expression& pattern) + { + return pattern->isAssignmentLocation(); + } + + bool isObjectLiteral(const Expression& node) + { + return node->isObjectLiteral(); + } + + bool isArrayLiteral(const Expression& node) + { + return node->isArrayLiteral(); + } + + bool isObjectOrArrayLiteral(const Expression& node) + { + return isObjectLiteral(node) || isArrayLiteral(node); + } + + bool shouldSkipPauseLocation(StatementNode* statement) const + { + return !statement || statement->isLabel(); + } + + StatementNode* createEmptyStatement(const JSTokenLocation& location) { return new (m_parserArena) EmptyStatementNode(location); } + + StatementNode* createDeclarationStatement(const JSTokenLocation& location, ExpressionNode* expr, int start, int end) { StatementNode* result; - if (!expr) - result = new (m_vm) EmptyStatementNode(location); - else - result = new (m_vm) VarStatementNode(location, expr); + result = new (m_parserArena) DeclarationStatement(location, expr); result->setLoc(start, end, location.startOffset, location.lineStartOffset); return result; } - StatementNode* createReturnStatement(const JSTokenLocation& location, ExpressionNode* expression, const JSTextPosition& start, const JSTextPosition& end) + ExpressionNode* createEmptyVarExpression(const JSTokenLocation& location, const Identifier& identifier) { - ReturnNode* result = new (m_vm) ReturnNode(location, expression); - setExceptionLocation(result, start, end, end); - result->setLoc(start.line, end.line, start.offset, start.lineStartOffset); - return result; + return new (m_parserArena) EmptyVarExpression(location, identifier); } - StatementNode* createBreakStatement(const JSTokenLocation& location, const JSTextPosition& start, const JSTextPosition& end) + ExpressionNode* createEmptyLetExpression(const JSTokenLocation& location, const Identifier& identifier) { - BreakNode* result = new (m_vm) BreakNode(m_vm, location); - setExceptionLocation(result, start, end, end); - result->setLoc(start.line, end.line, start.offset, start.lineStartOffset); - return result; + return new (m_parserArena) EmptyLetExpression(location, identifier); } - StatementNode* createBreakStatement(const JSTokenLocation& location, const Identifier* ident, const JSTextPosition& start, const JSTextPosition& end) + StatementNode* createReturnStatement(const JSTokenLocation& location, ExpressionNode* expression, const JSTextPosition& start, const JSTextPosition& end) { - BreakNode* result = new (m_vm) BreakNode(location, *ident); + ReturnNode* result = new (m_parserArena) ReturnNode(location, expression); setExceptionLocation(result, start, end, end); result->setLoc(start.line, end.line, start.offset, start.lineStartOffset); return result; } - StatementNode* createContinueStatement(const JSTokenLocation& location, const JSTextPosition& start, const JSTextPosition& end) + StatementNode* createBreakStatement(const JSTokenLocation& location, const Identifier* ident, const JSTextPosition& start, const JSTextPosition& end) { - ContinueNode* result = new (m_vm) ContinueNode(m_vm, location); + BreakNode* result = new (m_parserArena) BreakNode(location, *ident); setExceptionLocation(result, start, end, end); result->setLoc(start.line, end.line, start.offset, start.lineStartOffset); return result; @@ -452,46 +669,44 @@ public: StatementNode* createContinueStatement(const JSTokenLocation& location, const Identifier* ident, const JSTextPosition& start, const JSTextPosition& end) { - ContinueNode* result = new (m_vm) ContinueNode(location, *ident); + ContinueNode* result = new (m_parserArena) ContinueNode(location, *ident); setExceptionLocation(result, start, end, end); result->setLoc(start.line, end.line, start.offset, start.lineStartOffset); return result; } - StatementNode* createTryStatement(const JSTokenLocation& location, StatementNode* tryBlock, const Identifier* ident, StatementNode* catchBlock, StatementNode* finallyBlock, int startLine, int endLine) + StatementNode* createTryStatement(const JSTokenLocation& location, StatementNode* tryBlock, DestructuringPatternNode* catchPattern, StatementNode* catchBlock, StatementNode* finallyBlock, int startLine, int endLine, VariableEnvironment& catchEnvironment) { - TryNode* result = new (m_vm) TryNode(location, tryBlock, *ident, catchBlock, finallyBlock); - if (catchBlock) - usesCatch(); + TryNode* result = new (m_parserArena) TryNode(location, tryBlock, catchPattern, catchBlock, catchEnvironment, finallyBlock); result->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); return result; } - StatementNode* createSwitchStatement(const JSTokenLocation& location, ExpressionNode* expr, ClauseListNode* firstClauses, CaseClauseNode* defaultClause, ClauseListNode* secondClauses, int startLine, int endLine) + StatementNode* createSwitchStatement(const JSTokenLocation& location, ExpressionNode* expr, ClauseListNode* firstClauses, CaseClauseNode* defaultClause, ClauseListNode* secondClauses, int startLine, int endLine, VariableEnvironment& lexicalVariables, DeclarationStacks::FunctionStack&& functionStack) { - CaseBlockNode* cases = new (m_vm) CaseBlockNode(firstClauses, defaultClause, secondClauses); - SwitchNode* result = new (m_vm) SwitchNode(location, expr, cases); + CaseBlockNode* cases = new (m_parserArena) CaseBlockNode(firstClauses, defaultClause, secondClauses); + SwitchNode* result = new (m_parserArena) SwitchNode(location, expr, cases, lexicalVariables, WTFMove(functionStack)); result->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); return result; } StatementNode* createWhileStatement(const JSTokenLocation& location, ExpressionNode* expr, StatementNode* statement, int startLine, int endLine) { - WhileNode* result = new (m_vm) WhileNode(location, expr, statement); + WhileNode* result = new (m_parserArena) WhileNode(location, expr, statement); result->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); return result; } StatementNode* createDoWhileStatement(const JSTokenLocation& location, StatementNode* statement, ExpressionNode* expr, int startLine, int endLine) { - DoWhileNode* result = new (m_vm) DoWhileNode(location, statement, expr); + DoWhileNode* result = new (m_parserArena) DoWhileNode(location, statement, expr); result->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); return result; } StatementNode* createLabelStatement(const JSTokenLocation& location, const Identifier* ident, StatementNode* statement, const JSTextPosition& start, const JSTextPosition& end) { - LabelNode* result = new (m_vm) LabelNode(location, *ident, statement); + LabelNode* result = new (m_parserArena) LabelNode(location, *ident, statement); setExceptionLocation(result, start, end, end); return result; } @@ -499,14 +714,14 @@ public: StatementNode* createWithStatement(const JSTokenLocation& location, ExpressionNode* expr, StatementNode* statement, unsigned start, const JSTextPosition& end, unsigned startLine, unsigned endLine) { usesWith(); - WithNode* result = new (m_vm) WithNode(location, expr, statement, end, end - start); + WithNode* result = new (m_parserArena) WithNode(location, expr, statement, end, end - start); result->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); return result; } StatementNode* createThrowStatement(const JSTokenLocation& location, ExpressionNode* expr, const JSTextPosition& start, const JSTextPosition& end) { - ThrowNode* result = new (m_vm) ThrowNode(location, expr); + ThrowNode* result = new (m_parserArena) ThrowNode(location, expr); result->setLoc(start.line, end.line, start.offset, start.lineStartOffset); setExceptionLocation(result, start, end, end); return result; @@ -514,24 +729,69 @@ public: StatementNode* createDebugger(const JSTokenLocation& location, int startLine, int endLine) { - DebuggerStatementNode* result = new (m_vm) DebuggerStatementNode(location); + DebuggerStatementNode* result = new (m_parserArena) DebuggerStatementNode(location); result->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); return result; } - - StatementNode* createConstStatement(const JSTokenLocation& location, ConstDeclNode* decls, int startLine, int endLine) + + ModuleNameNode* createModuleName(const JSTokenLocation& location, const Identifier& moduleName) { - ConstStatementNode* result = new (m_vm) ConstStatementNode(location, decls); - result->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset); - return result; + return new (m_parserArena) ModuleNameNode(location, moduleName); } - ConstDeclNode* appendConstDecl(const JSTokenLocation& location, ConstDeclNode* tail, const Identifier* name, ExpressionNode* initializer) + ImportSpecifierNode* createImportSpecifier(const JSTokenLocation& location, const Identifier& importedName, const Identifier& localName) { - ConstDeclNode* result = new (m_vm) ConstDeclNode(location, *name, initializer); - if (tail) - tail->m_next = result; - return result; + return new (m_parserArena) ImportSpecifierNode(location, importedName, localName); + } + + ImportSpecifierListNode* createImportSpecifierList() + { + return new (m_parserArena) ImportSpecifierListNode(); + } + + void appendImportSpecifier(ImportSpecifierListNode* specifierList, ImportSpecifierNode* specifier) + { + specifierList->append(specifier); + } + + StatementNode* createImportDeclaration(const JSTokenLocation& location, ImportSpecifierListNode* importSpecifierList, ModuleNameNode* moduleName) + { + return new (m_parserArena) ImportDeclarationNode(location, importSpecifierList, moduleName); + } + + StatementNode* createExportAllDeclaration(const JSTokenLocation& location, ModuleNameNode* moduleName) + { + return new (m_parserArena) ExportAllDeclarationNode(location, moduleName); + } + + StatementNode* createExportDefaultDeclaration(const JSTokenLocation& location, StatementNode* declaration, const Identifier& localName) + { + return new (m_parserArena) ExportDefaultDeclarationNode(location, declaration, localName); + } + + StatementNode* createExportLocalDeclaration(const JSTokenLocation& location, StatementNode* declaration) + { + return new (m_parserArena) ExportLocalDeclarationNode(location, declaration); + } + + StatementNode* createExportNamedDeclaration(const JSTokenLocation& location, ExportSpecifierListNode* exportSpecifierList, ModuleNameNode* moduleName) + { + return new (m_parserArena) ExportNamedDeclarationNode(location, exportSpecifierList, moduleName); + } + + ExportSpecifierNode* createExportSpecifier(const JSTokenLocation& location, const Identifier& localName, const Identifier& exportedName) + { + return new (m_parserArena) ExportSpecifierNode(location, localName, exportedName); + } + + ExportSpecifierListNode* createExportSpecifierList() + { + return new (m_parserArena) ExportSpecifierListNode(); + } + + void appendExportSpecifier(ExportSpecifierListNode* specifierList, ExportSpecifierNode* specifier) + { + specifierList->append(specifier); } void appendStatement(JSC::SourceElements* elements, JSC::StatementNode* statement) @@ -539,23 +799,18 @@ public: elements->append(statement); } - void addVar(const Identifier* ident, int attrs) + CommaNode* createCommaExpr(const JSTokenLocation& location, ExpressionNode* node) { - if (m_vm->propertyNames->arguments == *ident) - usesArguments(); - ASSERT(ident->impl()->isIdentifier()); - m_scope.m_varDeclarations->data.append(std::make_pair(*ident, attrs)); + return new (m_parserArena) CommaNode(location, node); } - ExpressionNode* combineCommaNodes(const JSTokenLocation& location, ExpressionNode* list, ExpressionNode* init) + CommaNode* appendToCommaExpr(const JSTokenLocation& location, ExpressionNode*, ExpressionNode* tail, ExpressionNode* next) { - if (!list) - return init; - if (list->isCommaNode()) { - static_cast<CommaNode*>(list)->append(init); - return list; - } - return new (m_vm) CommaNode(location, list, init); + ASSERT(tail->isCommaNode()); + ASSERT(next); + CommaNode* newTail = new (m_parserArena) CommaNode(location, next); + static_cast<CommaNode*>(tail)->setNext(newTail); + return newTail; } int evalCount() const { return m_evalCount; } @@ -572,9 +827,14 @@ public: operatorStackDepth--; m_binaryOperatorStack.removeLast(); } - bool operatorStackHasHigherPrecedence(int&, int precedence) + bool operatorStackShouldReduce(int precedence) { - return precedence <= m_binaryOperatorStack.last().second; + // If the current precedence of the operator stack is the same to the one of the given operator, + // it depends on the associative whether we reduce the stack. + // If the operator is right associative, we should not reduce the stack right now. + if (precedence == m_binaryOperatorStack.last().second) + return !(m_binaryOperatorStack.last().first & RightAssociativeBinaryOpTokenFlag); + return precedence < m_binaryOperatorStack.last().second; } const BinaryOperand& getFromOperandStack(int i) { return m_binaryOperandStack[m_binaryOperandStack.size() + i]; } void shrinkOperandStackBy(int& operandStackDepth, int amount) @@ -638,58 +898,110 @@ public: assignmentStackDepth--; return result; } - - const Identifier* getName(Property property) const { return property->name(); } - PropertyNode::Type getType(Property property) const { return property->type(); } + + const Identifier* getName(const Property& property) const { return property->name(); } + PropertyNode::Type getType(const Property& property) const { return property->type(); } bool isResolve(ExpressionNode* expr) const { return expr->isResolveNode(); } - ExpressionNode* createDeconstructingAssignment(const JSTokenLocation& location, PassRefPtr<DeconstructionPatternNode> pattern, ExpressionNode* initializer) + ExpressionNode* createDestructuringAssignment(const JSTokenLocation& location, DestructuringPattern pattern, ExpressionNode* initializer) { - return new (m_vm) DeconstructingAssignmentNode(location, pattern.get(), initializer); + return new (m_parserArena) DestructuringAssignmentNode(location, pattern, initializer); } ArrayPattern createArrayPattern(const JSTokenLocation&) { - return ArrayPatternNode::create(m_vm); + return new (m_parserArena) ArrayPatternNode(); } void appendArrayPatternSkipEntry(ArrayPattern node, const JSTokenLocation& location) { - node->appendIndex(location, 0); + node->appendIndex(ArrayPatternNode::BindingType::Elision, location, 0, nullptr); } - void appendArrayPatternEntry(ArrayPattern node, const JSTokenLocation& location, DeconstructionPattern pattern) + void appendArrayPatternEntry(ArrayPattern node, const JSTokenLocation& location, DestructuringPattern pattern, ExpressionNode* defaultValue) { - node->appendIndex(location, pattern.get()); + node->appendIndex(ArrayPatternNode::BindingType::Element, location, pattern, defaultValue); + tryInferNameInPattern(pattern, defaultValue); + } + + void appendArrayPatternRestEntry(ArrayPattern node, const JSTokenLocation& location, DestructuringPattern pattern) + { + node->appendIndex(ArrayPatternNode::BindingType::RestElement, location, pattern, nullptr); + } + + void finishArrayPattern(ArrayPattern node, const JSTextPosition& divotStart, const JSTextPosition& divot, const JSTextPosition& divotEnd) + { + setExceptionLocation(node, divotStart, divot, divotEnd); } ObjectPattern createObjectPattern(const JSTokenLocation&) { - return ObjectPatternNode::create(m_vm); + return new (m_parserArena) ObjectPatternNode(); } - void appendObjectPatternEntry(ObjectPattern node, const JSTokenLocation& location, bool wasString, const Identifier& identifier, DeconstructionPattern pattern) + void appendObjectPatternEntry(ObjectPattern node, const JSTokenLocation& location, bool wasString, const Identifier& identifier, DestructuringPattern pattern, ExpressionNode* defaultValue) { - node->appendEntry(location, identifier, wasString, pattern.get()); + node->appendEntry(location, identifier, wasString, pattern, defaultValue); + tryInferNameInPattern(pattern, defaultValue); } - - BindingPattern createBindingLocation(const JSTokenLocation&, const Identifier& boundProperty, const JSTextPosition& start, const JSTextPosition& end) + + void appendObjectPatternEntry(ObjectPattern node, const JSTokenLocation& location, ExpressionNode* propertyExpression, DestructuringPattern pattern, ExpressionNode* defaultValue) + { + node->appendEntry(location, propertyExpression, pattern, defaultValue); + tryInferNameInPattern(pattern, defaultValue); + } + + BindingPattern createBindingLocation(const JSTokenLocation&, const Identifier& boundProperty, const JSTextPosition& start, const JSTextPosition& end, AssignmentContext context) + { + return new (m_parserArena) BindingNode(boundProperty, start, end, context); + } + + RestParameterNode* createRestParameter(DestructuringPatternNode* pattern, size_t numParametersToSkip) + { + return new (m_parserArena) RestParameterNode(pattern, numParametersToSkip); + } + + AssignmentElement createAssignmentElement(const Expression& assignmentTarget, const JSTextPosition& start, const JSTextPosition& end) + { + return new (m_parserArena) AssignmentElementNode(assignmentTarget, start, end); + } + + void setEndOffset(Node* node, int offset) + { + node->setEndOffset(offset); + } + + int endOffset(Node* node) { - return BindingNode::create(m_vm, boundProperty, start, end); + return node->endOffset(); } + + void setStartOffset(CaseClauseNode* node, int offset) + { + node->setStartOffset(offset); + } + + void setStartOffset(Node* node, int offset) + { + node->setStartOffset(offset); + } + + JSTextPosition breakpointLocation(Node* node) + { + node->setNeedsDebugHook(); + return node->position(); + } + + void propagateArgumentsUse() { usesArguments(); } private: struct Scope { - Scope(VM* vm) - : m_varDeclarations(new (vm) ParserArenaData<DeclarationStacks::VarStack>) - , m_funcDeclarations(new (vm) ParserArenaData<DeclarationStacks::FunctionStack>) - , m_features(0) + Scope() + : m_features(0) , m_numConstants(0) { } - ParserArenaData<DeclarationStacks::VarStack>* m_varDeclarations; - ParserArenaData<DeclarationStacks::FunctionStack>* m_funcDeclarations; int m_features; int m_numConstants; }; @@ -702,20 +1014,58 @@ private: void incConstants() { m_scope.m_numConstants++; } void usesThis() { m_scope.m_features |= ThisFeature; } - void usesCatch() { m_scope.m_features |= CatchFeature; } + void usesArrowFunction() { m_scope.m_features |= ArrowFunctionFeature; } void usesArguments() { m_scope.m_features |= ArgumentsFeature; } void usesWith() { m_scope.m_features |= WithFeature; } + void usesSuperCall() { m_scope.m_features |= SuperCallFeature; } + void usesSuperProperty() { m_scope.m_features |= SuperPropertyFeature; } void usesEval() { m_evalCount++; m_scope.m_features |= EvalFeature; } - ExpressionNode* createNumber(const JSTokenLocation& location, double d) + void usesNewTarget() { m_scope.m_features |= NewTargetFeature; } + ExpressionNode* createIntegerLikeNumber(const JSTokenLocation& location, double d) { - return new (m_vm) NumberNode(location, d); + return new (m_parserArena) IntegerNode(location, d); } - + ExpressionNode* createDoubleLikeNumber(const JSTokenLocation& location, double d) + { + return new (m_parserArena) DoubleNode(location, d); + } + ExpressionNode* createNumberFromBinaryOperation(const JSTokenLocation& location, double value, const NumberNode& originalNodeA, const NumberNode& originalNodeB) + { + if (originalNodeA.isIntegerNode() && originalNodeB.isIntegerNode()) + return createIntegerLikeNumber(location, value); + return createDoubleLikeNumber(location, value); + } + ExpressionNode* createNumberFromUnaryOperation(const JSTokenLocation& location, double value, const NumberNode& originalNode) + { + if (originalNode.isIntegerNode()) + return createIntegerLikeNumber(location, value); + return createDoubleLikeNumber(location, value); + } + + void tryInferNameInPattern(DestructuringPattern pattern, ExpressionNode* defaultValue) + { + if (!defaultValue) + return; + + if (!pattern->isBindingNode()) + return; + + const Identifier& ident = static_cast<const BindingNode*>(pattern)->boundProperty(); + + if (defaultValue->isBaseFuncExprNode()) { + auto metadata = static_cast<BaseFuncExprNode*>(defaultValue)->metadata(); + metadata->setEcmaName(ident); + metadata->setInferredName(ident); + } else if (defaultValue->isClassExprNode()) + static_cast<ClassExprNode*>(defaultValue)->setEcmaName(ident); + } + VM* m_vm; + ParserArena& m_parserArena; SourceCode* m_sourceCode; Scope m_scope; Vector<BinaryOperand, 10, UnsafeVectorOverflow> m_binaryOperandStack; @@ -729,171 +1079,242 @@ ExpressionNode* ASTBuilder::makeTypeOfNode(const JSTokenLocation& location, Expr { if (expr->isResolveNode()) { ResolveNode* resolve = static_cast<ResolveNode*>(expr); - return new (m_vm) TypeOfResolveNode(location, resolve->identifier()); + return new (m_parserArena) TypeOfResolveNode(location, resolve->identifier()); } - return new (m_vm) TypeOfValueNode(location, expr); + return new (m_parserArena) TypeOfValueNode(location, expr); } ExpressionNode* ASTBuilder::makeDeleteNode(const JSTokenLocation& location, ExpressionNode* expr, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) { if (!expr->isLocation()) - return new (m_vm) DeleteValueNode(location, expr); + return new (m_parserArena) DeleteValueNode(location, expr); if (expr->isResolveNode()) { ResolveNode* resolve = static_cast<ResolveNode*>(expr); - return new (m_vm) DeleteResolveNode(location, resolve->identifier(), divot, start, end); + return new (m_parserArena) DeleteResolveNode(location, resolve->identifier(), divot, start, end); } if (expr->isBracketAccessorNode()) { BracketAccessorNode* bracket = static_cast<BracketAccessorNode*>(expr); - return new (m_vm) DeleteBracketNode(location, bracket->base(), bracket->subscript(), divot, start, end); + return new (m_parserArena) DeleteBracketNode(location, bracket->base(), bracket->subscript(), divot, start, end); } ASSERT(expr->isDotAccessorNode()); DotAccessorNode* dot = static_cast<DotAccessorNode*>(expr); - return new (m_vm) DeleteDotNode(location, dot->base(), dot->identifier(), divot, start, end); + return new (m_parserArena) DeleteDotNode(location, dot->base(), dot->identifier(), divot, start, end); } ExpressionNode* ASTBuilder::makeNegateNode(const JSTokenLocation& location, ExpressionNode* n) { if (n->isNumber()) { - NumberNode* numberNode = static_cast<NumberNode*>(n); - numberNode->setValue(-numberNode->value()); - return numberNode; + const NumberNode& numberNode = static_cast<const NumberNode&>(*n); + return createNumberFromUnaryOperation(location, -numberNode.value(), numberNode); } - return new (m_vm) NegateNode(location, n); + return new (m_parserArena) NegateNode(location, n); } ExpressionNode* ASTBuilder::makeBitwiseNotNode(const JSTokenLocation& location, ExpressionNode* expr) { if (expr->isNumber()) - return createNumber(location, ~toInt32(static_cast<NumberNode*>(expr)->value())); - return new (m_vm) BitwiseNotNode(location, expr); + return createIntegerLikeNumber(location, ~toInt32(static_cast<NumberNode*>(expr)->value())); + return new (m_parserArena) BitwiseNotNode(location, expr); +} + +ExpressionNode* ASTBuilder::makePowNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) +{ + auto* strippedExpr1 = expr1->stripUnaryPlus(); + auto* strippedExpr2 = expr2->stripUnaryPlus(); + + if (strippedExpr1->isNumber() && strippedExpr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*strippedExpr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*strippedExpr2); + return createNumberFromBinaryOperation(location, operationMathPow(numberExpr1.value(), numberExpr2.value()), numberExpr1, numberExpr2); + } + + if (strippedExpr1->isNumber()) + expr1 = strippedExpr1; + if (strippedExpr2->isNumber()) + expr2 = strippedExpr2; + + return new (m_parserArena) PowNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeMultNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { + // FIXME: Unary + change the evaluation order. + // https://bugs.webkit.org/show_bug.cgi?id=159968 expr1 = expr1->stripUnaryPlus(); expr2 = expr2->stripUnaryPlus(); - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, static_cast<NumberNode*>(expr1)->value() * static_cast<NumberNode*>(expr2)->value()); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createNumberFromBinaryOperation(location, numberExpr1.value() * numberExpr2.value(), numberExpr1, numberExpr2); + } if (expr1->isNumber() && static_cast<NumberNode*>(expr1)->value() == 1) - return new (m_vm) UnaryPlusNode(location, expr2); + return new (m_parserArena) UnaryPlusNode(location, expr2); if (expr2->isNumber() && static_cast<NumberNode*>(expr2)->value() == 1) - return new (m_vm) UnaryPlusNode(location, expr1); + return new (m_parserArena) UnaryPlusNode(location, expr1); - return new (m_vm) MultNode(location, expr1, expr2, rightHasAssignments); + return new (m_parserArena) MultNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeDivNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { + // FIXME: Unary + change the evaluation order. + // https://bugs.webkit.org/show_bug.cgi?id=159968 expr1 = expr1->stripUnaryPlus(); expr2 = expr2->stripUnaryPlus(); - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, static_cast<NumberNode*>(expr1)->value() / static_cast<NumberNode*>(expr2)->value()); - return new (m_vm) DivNode(location, expr1, expr2, rightHasAssignments); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + double result = numberExpr1.value() / numberExpr2.value(); + if (static_cast<int64_t>(result) == result) + return createNumberFromBinaryOperation(location, result, numberExpr1, numberExpr2); + return createDoubleLikeNumber(location, result); + } + return new (m_parserArena) DivNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeModNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { + // FIXME: Unary + change the evaluation order. + // https://bugs.webkit.org/show_bug.cgi?id=159968 expr1 = expr1->stripUnaryPlus(); expr2 = expr2->stripUnaryPlus(); - - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, fmod(static_cast<NumberNode*>(expr1)->value(), static_cast<NumberNode*>(expr2)->value())); - return new (m_vm) ModNode(location, expr1, expr2, rightHasAssignments); + + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createIntegerLikeNumber(location, fmod(numberExpr1.value(), numberExpr2.value())); + } + return new (m_parserArena) ModNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeAddNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, static_cast<NumberNode*>(expr1)->value() + static_cast<NumberNode*>(expr2)->value()); - return new (m_vm) AddNode(location, expr1, expr2, rightHasAssignments); + + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createNumberFromBinaryOperation(location, numberExpr1.value() + numberExpr2.value(), numberExpr1, numberExpr2); + } + return new (m_parserArena) AddNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeSubNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { + // FIXME: Unary + change the evaluation order. + // https://bugs.webkit.org/show_bug.cgi?id=159968 expr1 = expr1->stripUnaryPlus(); expr2 = expr2->stripUnaryPlus(); - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, static_cast<NumberNode*>(expr1)->value() - static_cast<NumberNode*>(expr2)->value()); - return new (m_vm) SubNode(location, expr1, expr2, rightHasAssignments); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createNumberFromBinaryOperation(location, numberExpr1.value() - numberExpr2.value(), numberExpr1, numberExpr2); + } + return new (m_parserArena) SubNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeLeftShiftNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, toInt32(static_cast<NumberNode*>(expr1)->value()) << (toUInt32(static_cast<NumberNode*>(expr2)->value()) & 0x1f)); - return new (m_vm) LeftShiftNode(location, expr1, expr2, rightHasAssignments); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createIntegerLikeNumber(location, toInt32(numberExpr1.value()) << (toUInt32(numberExpr2.value()) & 0x1f)); + } + return new (m_parserArena) LeftShiftNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeRightShiftNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, toInt32(static_cast<NumberNode*>(expr1)->value()) >> (toUInt32(static_cast<NumberNode*>(expr2)->value()) & 0x1f)); - return new (m_vm) RightShiftNode(location, expr1, expr2, rightHasAssignments); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createIntegerLikeNumber(location, toInt32(numberExpr1.value()) >> (toUInt32(numberExpr2.value()) & 0x1f)); + } + return new (m_parserArena) RightShiftNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeURightShiftNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, toUInt32(static_cast<NumberNode*>(expr1)->value()) >> (toUInt32(static_cast<NumberNode*>(expr2)->value()) & 0x1f)); - return new (m_vm) UnsignedRightShiftNode(location, expr1, expr2, rightHasAssignments); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createIntegerLikeNumber(location, toUInt32(numberExpr1.value()) >> (toUInt32(numberExpr2.value()) & 0x1f)); + } + return new (m_parserArena) UnsignedRightShiftNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeBitOrNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, toInt32(static_cast<NumberNode*>(expr1)->value()) | toInt32(static_cast<NumberNode*>(expr2)->value())); - return new (m_vm) BitOrNode(location, expr1, expr2, rightHasAssignments); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createIntegerLikeNumber(location, toInt32(numberExpr1.value()) | toInt32(numberExpr2.value())); + } + return new (m_parserArena) BitOrNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeBitAndNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, toInt32(static_cast<NumberNode*>(expr1)->value()) & toInt32(static_cast<NumberNode*>(expr2)->value())); - return new (m_vm) BitAndNode(location, expr1, expr2, rightHasAssignments); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createIntegerLikeNumber(location, toInt32(numberExpr1.value()) & toInt32(numberExpr2.value())); + } + return new (m_parserArena) BitAndNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeBitXOrNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2, bool rightHasAssignments) { - if (expr1->isNumber() && expr2->isNumber()) - return createNumber(location, toInt32(static_cast<NumberNode*>(expr1)->value()) ^ toInt32(static_cast<NumberNode*>(expr2)->value())); - return new (m_vm) BitXOrNode(location, expr1, expr2, rightHasAssignments); + if (expr1->isNumber() && expr2->isNumber()) { + const NumberNode& numberExpr1 = static_cast<NumberNode&>(*expr1); + const NumberNode& numberExpr2 = static_cast<NumberNode&>(*expr2); + return createIntegerLikeNumber(location, toInt32(numberExpr1.value()) ^ toInt32(numberExpr2.value())); + } + return new (m_parserArena) BitXOrNode(location, expr1, expr2, rightHasAssignments); } ExpressionNode* ASTBuilder::makeFunctionCallNode(const JSTokenLocation& location, ExpressionNode* func, ArgumentsNode* args, const JSTextPosition& divotStart, const JSTextPosition& divot, const JSTextPosition& divotEnd) { ASSERT(divot.offset >= divot.lineStartOffset); + if (func->isSuperNode()) + usesSuperCall(); + + if (func->isBytecodeIntrinsicNode()) { + BytecodeIntrinsicNode* intrinsic = static_cast<BytecodeIntrinsicNode*>(func); + if (intrinsic->type() == BytecodeIntrinsicNode::Type::Constant) + return new (m_parserArena) BytecodeIntrinsicNode(BytecodeIntrinsicNode::Type::Function, location, intrinsic->emitter(), intrinsic->identifier(), args, divot, divotStart, divotEnd); + } if (!func->isLocation()) - return new (m_vm) FunctionCallValueNode(location, func, args, divot, divotStart, divotEnd); + return new (m_parserArena) FunctionCallValueNode(location, func, args, divot, divotStart, divotEnd); if (func->isResolveNode()) { ResolveNode* resolve = static_cast<ResolveNode*>(func); const Identifier& identifier = resolve->identifier(); if (identifier == m_vm->propertyNames->eval) { usesEval(); - return new (m_vm) EvalFunctionCallNode(location, args, divot, divotStart, divotEnd); + return new (m_parserArena) EvalFunctionCallNode(location, args, divot, divotStart, divotEnd); } - return new (m_vm) FunctionCallResolveNode(location, identifier, args, divot, divotStart, divotEnd); + return new (m_parserArena) FunctionCallResolveNode(location, identifier, args, divot, divotStart, divotEnd); } if (func->isBracketAccessorNode()) { BracketAccessorNode* bracket = static_cast<BracketAccessorNode*>(func); - FunctionCallBracketNode* node = new (m_vm) FunctionCallBracketNode(location, bracket->base(), bracket->subscript(), args, divot, divotStart, divotEnd); + FunctionCallBracketNode* node = new (m_parserArena) FunctionCallBracketNode(location, bracket->base(), bracket->subscript(), bracket->subscriptHasAssignments(), args, divot, divotStart, divotEnd); node->setSubexpressionInfo(bracket->divot(), bracket->divotEnd().offset); return node; } ASSERT(func->isDotAccessorNode()); DotAccessorNode* dot = static_cast<DotAccessorNode*>(func); FunctionCallDotNode* node; - if (dot->identifier() == m_vm->propertyNames->call) - node = new (m_vm) CallFunctionCallDotNode(location, dot->base(), dot->identifier(), args, divot, divotStart, divotEnd); - else if (dot->identifier() == m_vm->propertyNames->apply) - node = new (m_vm) ApplyFunctionCallDotNode(location, dot->base(), dot->identifier(), args, divot, divotStart, divotEnd); + if (dot->identifier() == m_vm->propertyNames->builtinNames().callPublicName() || dot->identifier() == m_vm->propertyNames->builtinNames().callPrivateName()) + node = new (m_parserArena) CallFunctionCallDotNode(location, dot->base(), dot->identifier(), args, divot, divotStart, divotEnd); + else if (dot->identifier() == m_vm->propertyNames->builtinNames().applyPublicName() || dot->identifier() == m_vm->propertyNames->builtinNames().applyPrivateName()) + node = new (m_parserArena) ApplyFunctionCallDotNode(location, dot->base(), dot->identifier(), args, divot, divotStart, divotEnd); else - node = new (m_vm) FunctionCallDotNode(location, dot->base(), dot->identifier(), args, divot, divotStart, divotEnd); + node = new (m_parserArena) FunctionCallDotNode(location, dot->base(), dot->identifier(), args, divot, divotStart, divotEnd); node->setSubexpressionInfo(dot->divot(), dot->divotEnd().offset); return node; } @@ -902,10 +1323,10 @@ ExpressionNode* ASTBuilder::makeBinaryNode(const JSTokenLocation& location, int { switch (token) { case OR: - return new (m_vm) LogicalOpNode(location, lhs.first, rhs.first, OpLogicalOr); + return new (m_parserArena) LogicalOpNode(location, lhs.first, rhs.first, OpLogicalOr); case AND: - return new (m_vm) LogicalOpNode(location, lhs.first, rhs.first, OpLogicalAnd); + return new (m_parserArena) LogicalOpNode(location, lhs.first, rhs.first, OpLogicalAnd); case BITOR: return makeBitOrNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); @@ -917,37 +1338,37 @@ ExpressionNode* ASTBuilder::makeBinaryNode(const JSTokenLocation& location, int return makeBitAndNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case EQEQ: - return new (m_vm) EqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + return new (m_parserArena) EqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case NE: - return new (m_vm) NotEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + return new (m_parserArena) NotEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case STREQ: - return new (m_vm) StrictEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + return new (m_parserArena) StrictEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case STRNEQ: - return new (m_vm) NotStrictEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + return new (m_parserArena) NotStrictEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case LT: - return new (m_vm) LessNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + return new (m_parserArena) LessNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case GT: - return new (m_vm) GreaterNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + return new (m_parserArena) GreaterNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case LE: - return new (m_vm) LessEqNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + return new (m_parserArena) LessEqNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case GE: - return new (m_vm) GreaterEqNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + return new (m_parserArena) GreaterEqNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); case INSTANCEOF: { - InstanceOfNode* node = new (m_vm) InstanceOfNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + InstanceOfNode* node = new (m_parserArena) InstanceOfNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); setExceptionLocation(node, lhs.second.start, rhs.second.start, rhs.second.end); return node; } case INTOKEN: { - InNode* node = new (m_vm) InNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + InNode* node = new (m_parserArena) InNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); setExceptionLocation(node, lhs.second.start, rhs.second.start, rhs.second.end); return node; } @@ -975,6 +1396,9 @@ ExpressionNode* ASTBuilder::makeBinaryNode(const JSTokenLocation& location, int case MOD: return makeModNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); + + case POW: + return makePowNode(location, lhs.first, rhs.first, rhs.second.hasAssignment); } CRASH(); return 0; @@ -983,50 +1407,55 @@ ExpressionNode* ASTBuilder::makeBinaryNode(const JSTokenLocation& location, int ExpressionNode* ASTBuilder::makeAssignNode(const JSTokenLocation& location, ExpressionNode* loc, Operator op, ExpressionNode* expr, bool locHasAssignments, bool exprHasAssignments, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) { if (!loc->isLocation()) - return new (m_vm) AssignErrorNode(location, divot, start, end); + return new (m_parserArena) AssignErrorNode(location, divot, start, end); if (loc->isResolveNode()) { ResolveNode* resolve = static_cast<ResolveNode*>(loc); if (op == OpEqual) { - if (expr->isFuncExprNode()) - static_cast<FuncExprNode*>(expr)->body()->setInferredName(resolve->identifier()); - AssignResolveNode* node = new (m_vm) AssignResolveNode(location, resolve->identifier(), expr); + if (expr->isBaseFuncExprNode()) { + auto metadata = static_cast<BaseFuncExprNode*>(expr)->metadata(); + metadata->setEcmaName(resolve->identifier()); + metadata->setInferredName(resolve->identifier()); + } else if (expr->isClassExprNode()) + static_cast<ClassExprNode*>(expr)->setEcmaName(resolve->identifier()); + AssignResolveNode* node = new (m_parserArena) AssignResolveNode(location, resolve->identifier(), expr, AssignmentContext::AssignmentExpression); setExceptionLocation(node, start, divot, end); return node; } - return new (m_vm) ReadModifyResolveNode(location, resolve->identifier(), op, expr, exprHasAssignments, divot, start, end); + return new (m_parserArena) ReadModifyResolveNode(location, resolve->identifier(), op, expr, exprHasAssignments, divot, start, end); } if (loc->isBracketAccessorNode()) { BracketAccessorNode* bracket = static_cast<BracketAccessorNode*>(loc); if (op == OpEqual) - return new (m_vm) AssignBracketNode(location, bracket->base(), bracket->subscript(), expr, locHasAssignments, exprHasAssignments, bracket->divot(), start, end); - ReadModifyBracketNode* node = new (m_vm) ReadModifyBracketNode(location, bracket->base(), bracket->subscript(), op, expr, locHasAssignments, exprHasAssignments, divot, start, end); + return new (m_parserArena) AssignBracketNode(location, bracket->base(), bracket->subscript(), expr, locHasAssignments, exprHasAssignments, bracket->divot(), start, end); + ReadModifyBracketNode* node = new (m_parserArena) ReadModifyBracketNode(location, bracket->base(), bracket->subscript(), op, expr, locHasAssignments, exprHasAssignments, divot, start, end); node->setSubexpressionInfo(bracket->divot(), bracket->divotEnd().offset); return node; } ASSERT(loc->isDotAccessorNode()); DotAccessorNode* dot = static_cast<DotAccessorNode*>(loc); if (op == OpEqual) { - if (expr->isFuncExprNode()) - static_cast<FuncExprNode*>(expr)->body()->setInferredName(dot->identifier()); - return new (m_vm) AssignDotNode(location, dot->base(), dot->identifier(), expr, exprHasAssignments, dot->divot(), start, end); + if (expr->isBaseFuncExprNode()) { + // We don't also set the ecma name here because ES6 specifies that the + // function should not pick up the name of the dot->identifier(). + static_cast<BaseFuncExprNode*>(expr)->metadata()->setInferredName(dot->identifier()); + } + return new (m_parserArena) AssignDotNode(location, dot->base(), dot->identifier(), expr, exprHasAssignments, dot->divot(), start, end); } - ReadModifyDotNode* node = new (m_vm) ReadModifyDotNode(location, dot->base(), dot->identifier(), op, expr, exprHasAssignments, divot, start, end); + ReadModifyDotNode* node = new (m_parserArena) ReadModifyDotNode(location, dot->base(), dot->identifier(), op, expr, exprHasAssignments, divot, start, end); node->setSubexpressionInfo(dot->divot(), dot->divotEnd().offset); return node; } ExpressionNode* ASTBuilder::makePrefixNode(const JSTokenLocation& location, ExpressionNode* expr, Operator op, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) { - return new (m_vm) PrefixNode(location, expr, op, divot, start, end); + return new (m_parserArena) PrefixNode(location, expr, op, divot, start, end); } ExpressionNode* ASTBuilder::makePostfixNode(const JSTokenLocation& location, ExpressionNode* expr, Operator op, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end) { - return new (m_vm) PostfixNode(location, expr, op, divot, start, end); + return new (m_parserArena) PostfixNode(location, expr, op, divot, start, end); } } - -#endif |