mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
1636 lines
81 KiB
C++
1636 lines
81 KiB
C++
/*
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* Copyright (C) 2010-2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "BuiltinNames.h"
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#include "BytecodeIntrinsicRegistry.h"
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#include "MathCommon.h"
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#include "NodeConstructors.h"
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#include "SyntaxChecker.h"
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#include "VariableEnvironment.h"
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#include <utility>
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namespace JSC {
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class ASTBuilder {
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struct BinaryOpInfo {
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BinaryOpInfo() {}
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BinaryOpInfo(const JSTextPosition& otherStart, const JSTextPosition& otherDivot, const JSTextPosition& otherEnd, bool rhsHasAssignment)
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: start(otherStart)
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, divot(otherDivot)
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, end(otherEnd)
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, hasAssignment(rhsHasAssignment)
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{
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}
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BinaryOpInfo(const BinaryOpInfo& lhs, const BinaryOpInfo& rhs)
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: start(lhs.start)
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, divot(rhs.start)
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, end(rhs.end)
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, hasAssignment(lhs.hasAssignment || rhs.hasAssignment)
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{
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}
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JSTextPosition start;
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JSTextPosition divot;
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JSTextPosition end;
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bool hasAssignment;
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};
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struct AssignmentInfo {
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AssignmentInfo() {}
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AssignmentInfo(ExpressionNode* node, const JSTextPosition& start, const JSTextPosition& divot, int initAssignments, Operator op)
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: m_node(node)
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, m_start(start)
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, m_divot(divot)
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, m_initAssignments(initAssignments)
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, m_op(op)
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{
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ASSERT(m_divot.offset >= m_divot.lineStartOffset);
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ASSERT(m_start.offset >= m_start.lineStartOffset);
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}
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ExpressionNode* m_node;
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JSTextPosition m_start;
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JSTextPosition m_divot;
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int m_initAssignments;
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Operator m_op;
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};
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public:
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ASTBuilder(VM& vm, ParserArena& parserArena, SourceCode* sourceCode)
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: m_vm(vm)
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, m_parserArena(parserArena)
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, m_sourceCode(sourceCode)
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, m_evalCount(0)
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{
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}
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struct BinaryExprContext {
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BinaryExprContext(ASTBuilder&) {}
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};
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struct UnaryExprContext {
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UnaryExprContext(ASTBuilder&) {}
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};
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typedef ExpressionNode* Expression;
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typedef JSC::SourceElements* SourceElements;
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typedef ArgumentsNode* Arguments;
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typedef CommaNode* Comma;
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typedef PropertyNode* Property;
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typedef PropertyListNode* PropertyList;
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typedef ElementNode* ElementList;
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typedef ArgumentListNode* ArgumentsList;
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typedef TemplateExpressionListNode* TemplateExpressionList;
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typedef TemplateStringNode* TemplateString;
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typedef TemplateStringListNode* TemplateStringList;
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typedef TemplateLiteralNode* TemplateLiteral;
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typedef FunctionParameters* FormalParameterList;
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typedef FunctionMetadataNode* FunctionBody;
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typedef ClassExprNode* ClassExpression;
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typedef ModuleNameNode* ModuleName;
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typedef ImportSpecifierNode* ImportSpecifier;
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typedef ImportSpecifierListNode* ImportSpecifierList;
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typedef ExportSpecifierNode* ExportSpecifier;
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typedef ExportSpecifierListNode* ExportSpecifierList;
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typedef StatementNode* Statement;
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typedef ClauseListNode* ClauseList;
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typedef CaseClauseNode* Clause;
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typedef std::pair<ExpressionNode*, BinaryOpInfo> BinaryOperand;
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typedef DestructuringPatternNode* DestructuringPattern;
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typedef ArrayPatternNode* ArrayPattern;
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typedef ObjectPatternNode* ObjectPattern;
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typedef BindingNode* BindingPattern;
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typedef AssignmentElementNode* AssignmentElement;
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static constexpr bool CreatesAST = true;
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static constexpr bool NeedsFreeVariableInfo = true;
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static constexpr bool CanUseFunctionCache = true;
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static constexpr OptionSet<LexerFlags> DontBuildKeywords = { };
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static constexpr OptionSet<LexerFlags> DontBuildStrings = { };
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ExpressionNode* makeBinaryNode(const JSTokenLocation&, int token, std::pair<ExpressionNode*, BinaryOpInfo>, std::pair<ExpressionNode*, BinaryOpInfo>);
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ExpressionNode* makeFunctionCallNode(const JSTokenLocation&, ExpressionNode* func, bool previousBaseWasSuper, ArgumentsNode* args, const JSTextPosition& divotStart, const JSTextPosition& divot, const JSTextPosition& divotEnd, size_t callOrApplyChildDepth, bool isOptionalCall);
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JSC::SourceElements* createSourceElements() { return new (m_parserArena) JSC::SourceElements(); }
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int features() const { return m_scope.m_features; }
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int numConstants() const { return m_scope.m_numConstants; }
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ExpressionNode* makeAssignNode(const JSTokenLocation&, ExpressionNode* left, Operator, ExpressionNode* right, bool leftHasAssignments, bool rightHasAssignments, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end);
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ExpressionNode* makePrefixNode(const JSTokenLocation&, ExpressionNode*, Operator, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end);
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ExpressionNode* makePostfixNode(const JSTokenLocation&, ExpressionNode*, Operator, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end);
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ExpressionNode* makeTypeOfNode(const JSTokenLocation&, ExpressionNode*);
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ExpressionNode* makeDeleteNode(const JSTokenLocation&, ExpressionNode*, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end);
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ExpressionNode* makeNegateNode(const JSTokenLocation&, ExpressionNode*);
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ExpressionNode* makeBitwiseNotNode(const JSTokenLocation&, ExpressionNode*);
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ExpressionNode* makePowNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeMultNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeDivNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeModNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeAddNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeSubNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeBitXOrNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeBitAndNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeBitOrNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeCoalesceNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right);
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ExpressionNode* makeLeftShiftNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeRightShiftNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* makeURightShiftNode(const JSTokenLocation&, ExpressionNode* left, ExpressionNode* right, bool rightHasAssignments);
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ExpressionNode* createLogicalNot(const JSTokenLocation& location, ExpressionNode* expr)
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{
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if (expr->isNumber())
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return createBoolean(location, isZeroOrUnordered(static_cast<NumberNode*>(expr)->value()));
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return new (m_parserArena) LogicalNotNode(location, expr);
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}
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ExpressionNode* createUnaryPlus(const JSTokenLocation& location, ExpressionNode* expr) { return new (m_parserArena) UnaryPlusNode(location, expr); }
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ExpressionNode* createVoid(const JSTokenLocation& location, ExpressionNode* expr)
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{
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incConstants();
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return new (m_parserArena) VoidNode(location, expr);
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}
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ExpressionNode* createThisExpr(const JSTokenLocation& location)
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{
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usesThis();
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return new (m_parserArena) ThisNode(location);
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}
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ExpressionNode* createSuperExpr(const JSTokenLocation& location)
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{
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return new (m_parserArena) SuperNode(location);
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}
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ExpressionNode* createImportExpr(const JSTokenLocation& location, ExpressionNode* expr, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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auto* node = new (m_parserArena) ImportNode(location, expr);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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ExpressionNode* createNewTargetExpr(const JSTokenLocation location)
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{
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usesNewTarget();
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return new (m_parserArena) NewTargetNode(location);
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}
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ExpressionNode* createImportMetaExpr(const JSTokenLocation& location, ExpressionNode* expr) { return new (m_parserArena) ImportMetaNode(location, expr); }
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bool isMetaProperty(ExpressionNode* node) { return node->isMetaProperty(); }
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bool isNewTarget(ExpressionNode* node) { return node->isNewTarget(); }
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bool isImportMeta(ExpressionNode* node) { return node->isImportMeta(); }
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ExpressionNode* createResolve(const JSTokenLocation& location, const Identifier& ident, const JSTextPosition& start, const JSTextPosition& end)
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{
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if (m_vm.propertyNames->arguments == ident)
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usesArguments();
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if (ident.isSymbol()) {
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auto entry = m_vm.bytecodeIntrinsicRegistry().lookup(ident);
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if (entry)
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return new (m_parserArena) BytecodeIntrinsicNode(BytecodeIntrinsicNode::Type::Constant, location, entry.value(), ident, nullptr, start, start, end);
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}
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return new (m_parserArena) ResolveNode(location, ident, start);
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}
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ExpressionNode* createObjectLiteral(const JSTokenLocation& location) { return new (m_parserArena) ObjectLiteralNode(location); }
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ExpressionNode* createObjectLiteral(const JSTokenLocation& location, PropertyListNode* properties) { return new (m_parserArena) ObjectLiteralNode(location, properties); }
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ExpressionNode* createArray(const JSTokenLocation& location, int elisions)
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{
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if (elisions)
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incConstants();
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return new (m_parserArena) ArrayNode(location, elisions);
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}
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ExpressionNode* createArray(const JSTokenLocation& location, ElementNode* elems) { return new (m_parserArena) ArrayNode(location, elems); }
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ExpressionNode* createArray(const JSTokenLocation& location, int elisions, ElementNode* elems)
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{
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if (elisions)
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incConstants();
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return new (m_parserArena) ArrayNode(location, elisions, elems);
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}
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ExpressionNode* createDoubleExpr(const JSTokenLocation& location, double d)
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{
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incConstants();
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return new (m_parserArena) DoubleNode(location, d);
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}
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ExpressionNode* createIntegerExpr(const JSTokenLocation& location, double d)
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{
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incConstants();
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return new (m_parserArena) IntegerNode(location, d);
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}
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ExpressionNode* createBigInt(const JSTokenLocation& location, const Identifier* bigInt, uint8_t radix)
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{
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incConstants();
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return new (m_parserArena) BigIntNode(location, *bigInt, radix);
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}
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ExpressionNode* createString(const JSTokenLocation& location, const Identifier* string)
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{
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ASSERT(string);
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incConstants();
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return new (m_parserArena) StringNode(location, *string);
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}
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ExpressionNode* createBoolean(const JSTokenLocation& location, bool b)
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{
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incConstants();
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return new (m_parserArena) BooleanNode(location, b);
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}
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ExpressionNode* createNull(const JSTokenLocation& location)
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{
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incConstants();
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return new (m_parserArena) NullNode(location);
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}
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ExpressionNode* createBracketAccess(const JSTokenLocation& location, ExpressionNode* base, ExpressionNode* property, bool propertyHasAssignments, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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if (base->isSuperNode())
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usesSuperProperty();
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BracketAccessorNode* node = new (m_parserArena) BracketAccessorNode(location, base, property, propertyHasAssignments);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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ExpressionNode* createDotAccess(const JSTokenLocation& location, ExpressionNode* base, const Identifier* property, DotType type, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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if (base->isSuperNode())
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usesSuperProperty();
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DotAccessorNode* node = new (m_parserArena) DotAccessorNode(location, base, *property, type);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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ExpressionNode* createSpreadExpression(const JSTokenLocation& location, ExpressionNode* expression, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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auto node = new (m_parserArena) SpreadExpressionNode(location, expression);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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ExpressionNode* createObjectSpreadExpression(const JSTokenLocation& location, ExpressionNode* expression, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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auto node = new (m_parserArena) ObjectSpreadExpressionNode(location, expression);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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TemplateStringNode* createTemplateString(const JSTokenLocation& location, const Identifier* cooked, const Identifier* raw)
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{
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return new (m_parserArena) TemplateStringNode(location, cooked, raw);
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}
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TemplateStringListNode* createTemplateStringList(TemplateStringNode* templateString)
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{
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return new (m_parserArena) TemplateStringListNode(templateString);
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}
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TemplateStringListNode* createTemplateStringList(TemplateStringListNode* templateStringList, TemplateStringNode* templateString)
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{
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return new (m_parserArena) TemplateStringListNode(templateStringList, templateString);
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}
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TemplateExpressionListNode* createTemplateExpressionList(ExpressionNode* expression)
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{
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return new (m_parserArena) TemplateExpressionListNode(expression);
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}
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TemplateExpressionListNode* createTemplateExpressionList(TemplateExpressionListNode* templateExpressionListNode, ExpressionNode* expression)
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{
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return new (m_parserArena) TemplateExpressionListNode(templateExpressionListNode, expression);
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}
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TemplateLiteralNode* createTemplateLiteral(const JSTokenLocation& location, TemplateStringListNode* templateStringList)
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{
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return new (m_parserArena) TemplateLiteralNode(location, templateStringList);
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}
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TemplateLiteralNode* createTemplateLiteral(const JSTokenLocation& location, TemplateStringListNode* templateStringList, TemplateExpressionListNode* templateExpressionList)
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{
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return new (m_parserArena) TemplateLiteralNode(location, templateStringList, templateExpressionList);
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}
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ExpressionNode* createTaggedTemplate(const JSTokenLocation& location, ExpressionNode* base, TemplateLiteralNode* templateLiteral, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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auto node = new (m_parserArena) TaggedTemplateNode(location, base, templateLiteral);
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setExceptionLocation(node, start, divot, end);
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setEndOffset(node, end.offset);
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return node;
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}
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ExpressionNode* createRegExp(const JSTokenLocation& location, const Identifier& pattern, const Identifier& flags, const JSTextPosition& start)
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{
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if (Yarr::hasError(Yarr::checkSyntax(pattern.string(), flags.string())))
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return nullptr;
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RegExpNode* node = new (m_parserArena) RegExpNode(location, pattern, flags);
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int size = pattern.length() + 2; // + 2 for the two /'s
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JSTextPosition end = start + size;
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setExceptionLocation(node, start, end, end);
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return node;
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}
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ExpressionNode* createNewExpr(const JSTokenLocation& location, ExpressionNode* expr, ArgumentsNode* arguments, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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NewExprNode* node = new (m_parserArena) NewExprNode(location, expr, arguments);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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ExpressionNode* createNewExpr(const JSTokenLocation& location, ExpressionNode* expr, const JSTextPosition& start, const JSTextPosition& end)
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{
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NewExprNode* node = new (m_parserArena) NewExprNode(location, expr);
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setExceptionLocation(node, start, end, end);
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return node;
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}
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ExpressionNode* createOptionalChain(const JSTokenLocation& location, ExpressionNode* base, ExpressionNode* expr, bool isOutermost)
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{
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base->setIsOptionalChainBase();
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return new (m_parserArena) OptionalChainNode(location, expr, isOutermost);
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}
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ExpressionNode* createConditionalExpr(const JSTokenLocation& location, ExpressionNode* condition, ExpressionNode* lhs, ExpressionNode* rhs)
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{
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return new (m_parserArena) ConditionalNode(location, condition, lhs, rhs);
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}
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ExpressionNode* createAssignResolve(const JSTokenLocation& location, const Identifier& ident, ExpressionNode* rhs, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end, AssignmentContext assignmentContext)
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{
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if (rhs->isBaseFuncExprNode()) {
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auto metadata = static_cast<BaseFuncExprNode*>(rhs)->metadata();
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metadata->setEcmaName(ident);
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} else if (rhs->isClassExprNode())
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static_cast<ClassExprNode*>(rhs)->setEcmaName(ident);
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AssignResolveNode* node = new (m_parserArena) AssignResolveNode(location, ident, rhs, assignmentContext);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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YieldExprNode* createYield(const JSTokenLocation& location)
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{
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return new (m_parserArena) YieldExprNode(location, nullptr, /* delegate */ false);
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}
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YieldExprNode* createYield(const JSTokenLocation& location, ExpressionNode* argument, bool delegate, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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YieldExprNode* node = new (m_parserArena) YieldExprNode(location, argument, delegate);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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AwaitExprNode* createAwait(const JSTokenLocation& location, ExpressionNode* argument, const JSTextPosition& start, const JSTextPosition& divot, const JSTextPosition& end)
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{
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ASSERT(argument);
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AwaitExprNode* node = new (m_parserArena) AwaitExprNode(location, argument);
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setExceptionLocation(node, start, divot, end);
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return node;
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}
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DefineFieldNode* createDefineField(const JSTokenLocation& location, const Identifier* ident, ExpressionNode* initializer, DefineFieldNode::Type type)
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{
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return new (m_parserArena) DefineFieldNode(location, ident, initializer, type);
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}
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ClassExprNode* createClassExpr(const JSTokenLocation& location, const ParserClassInfo<ASTBuilder>& classInfo, VariableEnvironment& classEnvironment, ExpressionNode* constructor,
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ExpressionNode* parentClass, PropertyListNode* classElements)
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{
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SourceCode source = m_sourceCode->subExpression(classInfo.startOffset, classInfo.endOffset, classInfo.startLine, classInfo.startColumn);
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return new (m_parserArena) ClassExprNode(location, *classInfo.className, source, classEnvironment, constructor, parentClass, classElements);
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}
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ExpressionNode* createFunctionExpr(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo)
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{
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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;
|
|
}
|
|
|
|
ExpressionNode* createGeneratorFunctionBody(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo, const Identifier& name)
|
|
{
|
|
FuncExprNode* result = static_cast<FuncExprNode*>(createFunctionExpr(location, functionInfo));
|
|
if (!name.isNull())
|
|
result->metadata()->setEcmaName(name);
|
|
return result;
|
|
}
|
|
|
|
ExpressionNode* createAsyncFunctionBody(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo, SourceParseMode parseMode)
|
|
{
|
|
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);
|
|
}
|
|
|
|
ExpressionNode* createMethodDefinition(const JSTokenLocation& location, const ParserFunctionInfo<ASTBuilder>& functionInfo)
|
|
{
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
ArgumentsNode* createArguments() { return new (m_parserArena) ArgumentsNode(); }
|
|
ArgumentsNode* createArguments(ArgumentListNode* args, bool hasAssignments) { return new (m_parserArena) ArgumentsNode(args, hasAssignments); }
|
|
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); }
|
|
|
|
NEVER_INLINE PropertyNode* createGetterOrSetterProperty(const JSTokenLocation& location, PropertyNode::Type type,
|
|
const Identifier* name, const ParserFunctionInfo<ASTBuilder>& functionInfo, ClassElementTag tag)
|
|
{
|
|
ASSERT(name);
|
|
functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset);
|
|
functionInfo.body->setEcmaName(*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, SuperBinding::Needed, tag);
|
|
}
|
|
|
|
NEVER_INLINE PropertyNode* createGetterOrSetterProperty(const JSTokenLocation& location, PropertyNode::Type type,
|
|
ExpressionNode* name, const ParserFunctionInfo<ASTBuilder>& functionInfo, ClassElementTag tag)
|
|
{
|
|
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, SuperBinding::Needed, tag);
|
|
}
|
|
|
|
NEVER_INLINE PropertyNode* createGetterOrSetterProperty(VM& vm, ParserArena& parserArena, const JSTokenLocation& location, PropertyNode::Type type,
|
|
double name, const ParserFunctionInfo<ASTBuilder>& functionInfo, ClassElementTag tag)
|
|
{
|
|
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, SuperBinding::Needed, tag);
|
|
}
|
|
|
|
PropertyNode* createProperty(const Identifier* propertyName, ExpressionNode* node, PropertyNode::Type type, SuperBinding superBinding, InferName inferName, ClassElementTag tag)
|
|
{
|
|
if (inferName == InferName::Allowed) {
|
|
if (node->isBaseFuncExprNode()) {
|
|
auto metadata = static_cast<BaseFuncExprNode*>(node)->metadata();
|
|
metadata->setEcmaName(*propertyName);
|
|
} else if (node->isClassExprNode())
|
|
static_cast<ClassExprNode*>(node)->setEcmaName(*propertyName);
|
|
}
|
|
return new (m_parserArena) PropertyNode(*propertyName, node, type, superBinding, tag);
|
|
}
|
|
PropertyNode* createProperty(ExpressionNode* node, PropertyNode::Type type, SuperBinding superBinding, ClassElementTag tag)
|
|
{
|
|
return new (m_parserArena) PropertyNode(node, type, superBinding, tag);
|
|
}
|
|
PropertyNode* createProperty(VM& vm, ParserArena& parserArena, double propertyName, ExpressionNode* node, PropertyNode::Type type, SuperBinding superBinding, ClassElementTag tag)
|
|
{
|
|
return new (m_parserArena) PropertyNode(parserArena.identifierArena().makeNumericIdentifier(vm, propertyName), node, type, superBinding, tag);
|
|
}
|
|
PropertyNode* createProperty(ExpressionNode* propertyName, ExpressionNode* node, PropertyNode::Type type, SuperBinding superBinding, ClassElementTag tag) { return new (m_parserArena) PropertyNode(propertyName, node, type, superBinding, tag); }
|
|
PropertyNode* createProperty(const Identifier* identifier, ExpressionNode* propertyName, ExpressionNode* node, PropertyNode::Type type, SuperBinding superBinding, ClassElementTag tag) { return new (m_parserArena) PropertyNode(*identifier, propertyName, node, type, superBinding, tag); }
|
|
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;
|
|
}
|
|
|
|
FormalParameterList createFormalParameterList() { return new (m_parserArena) FunctionParameters(); }
|
|
void appendParameter(FormalParameterList list, DestructuringPattern pattern, ExpressionNode* defaultValue)
|
|
{
|
|
list->append(pattern, defaultValue);
|
|
tryInferNameInPattern(pattern, defaultValue);
|
|
}
|
|
|
|
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 ParserFunctionInfo<ASTBuilder>& functionInfo)
|
|
{
|
|
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();
|
|
functionInfo.body->setLoc(functionInfo.startLine, functionInfo.endLine, location.startOffset, location.lineStartOffset);
|
|
return decl;
|
|
}
|
|
|
|
StatementNode* createClassDeclStatement(const JSTokenLocation& location, ClassExprNode* classExpression,
|
|
const JSTextPosition& classStart, const JSTextPosition& classEnd, unsigned startLine, unsigned endLine)
|
|
{
|
|
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_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_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, VariableEnvironment& lexicalVariables)
|
|
{
|
|
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 JSTokenLocation&, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end, VariableEnvironment& lexicalVariables)
|
|
{
|
|
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, DestructuringPatternNode* pattern, ExpressionNode* iter, StatementNode* statements, const JSTokenLocation& declLocation, const JSTextPosition& eStart, const JSTextPosition& eDivot, const JSTextPosition& eEnd, int start, int end, VariableEnvironment& lexicalVariables)
|
|
{
|
|
auto lexpr = new (m_parserArena) DestructuringAssignmentNode(declLocation, pattern, nullptr);
|
|
return createForInLoop(location, lexpr, iter, statements, declLocation, eStart, eDivot, eEnd, start, end, lexicalVariables);
|
|
}
|
|
|
|
StatementNode* createForOfLoop(bool isForAwait, 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_parserArena) ForOfNode(isForAwait, location, lhs, iter, statements, lexicalVariables);
|
|
result->setLoc(start, end, location.startOffset, location.lineStartOffset);
|
|
setExceptionLocation(result, eStart, eDivot, eEnd);
|
|
return result;
|
|
}
|
|
|
|
StatementNode* createForOfLoop(bool isForAwait, 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)
|
|
{
|
|
auto lexpr = new (m_parserArena) DestructuringAssignmentNode(declLocation, pattern, nullptr);
|
|
return createForOfLoop(isForAwait, location, lexpr, iter, statements, declLocation, eStart, eDivot, eEnd, start, end, lexicalVariables);
|
|
}
|
|
|
|
bool isBindingNode(const DestructuringPattern& pattern)
|
|
{
|
|
return pattern->isBindingNode();
|
|
}
|
|
|
|
bool isLocation(const Expression& node)
|
|
{
|
|
return node->isLocation();
|
|
}
|
|
|
|
bool isAssignmentLocation(const Expression& node)
|
|
{
|
|
return node->isAssignmentLocation();
|
|
}
|
|
|
|
bool isPrivateLocation(const Expression& node)
|
|
{
|
|
return node->isPrivateLocation();
|
|
}
|
|
|
|
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 isFunctionCall(const Expression& node)
|
|
{
|
|
return node->isFunctionCall();
|
|
}
|
|
|
|
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;
|
|
result = new (m_parserArena) DeclarationStatement(location, expr);
|
|
result->setLoc(start, end, location.startOffset, location.lineStartOffset);
|
|
return result;
|
|
}
|
|
|
|
ExpressionNode* createEmptyVarExpression(const JSTokenLocation& location, const Identifier& identifier)
|
|
{
|
|
return new (m_parserArena) EmptyVarExpression(location, identifier);
|
|
}
|
|
|
|
ExpressionNode* createEmptyLetExpression(const JSTokenLocation& location, const Identifier& identifier)
|
|
{
|
|
return new (m_parserArena) EmptyLetExpression(location, identifier);
|
|
}
|
|
|
|
StatementNode* createReturnStatement(const JSTokenLocation& location, ExpressionNode* expression, const JSTextPosition& start, const JSTextPosition& end)
|
|
{
|
|
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* createBreakStatement(const JSTokenLocation& location, const Identifier* ident, const JSTextPosition& start, const JSTextPosition& end)
|
|
{
|
|
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;
|
|
}
|
|
|
|
StatementNode* createContinueStatement(const JSTokenLocation& location, const Identifier* ident, const JSTextPosition& start, const JSTextPosition& end)
|
|
{
|
|
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, DestructuringPatternNode* catchPattern, StatementNode* catchBlock, StatementNode* finallyBlock, int startLine, int endLine, VariableEnvironment& catchEnvironment)
|
|
{
|
|
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, VariableEnvironment& lexicalVariables, DeclarationStacks::FunctionStack&& functionStack)
|
|
{
|
|
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_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_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_parserArena) LabelNode(location, *ident, statement);
|
|
setExceptionLocation(result, start, end, end);
|
|
return result;
|
|
}
|
|
|
|
StatementNode* createWithStatement(const JSTokenLocation& location, ExpressionNode* expr, StatementNode* statement, unsigned start, const JSTextPosition& end, unsigned startLine, unsigned endLine)
|
|
{
|
|
usesWith();
|
|
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_parserArena) ThrowNode(location, expr);
|
|
result->setLoc(start.line, end.line, start.offset, start.lineStartOffset);
|
|
setExceptionLocation(result, start, end, end);
|
|
return result;
|
|
}
|
|
|
|
StatementNode* createDebugger(const JSTokenLocation& location, int startLine, int endLine)
|
|
{
|
|
DebuggerStatementNode* result = new (m_parserArena) DebuggerStatementNode(location);
|
|
result->setLoc(startLine, endLine, location.startOffset, location.lineStartOffset);
|
|
return result;
|
|
}
|
|
|
|
ModuleNameNode* createModuleName(const JSTokenLocation& location, const Identifier& moduleName)
|
|
{
|
|
return new (m_parserArena) ModuleNameNode(location, moduleName);
|
|
}
|
|
|
|
ImportSpecifierNode* createImportSpecifier(const JSTokenLocation& location, const Identifier& importedName, const Identifier& localName)
|
|
{
|
|
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)
|
|
{
|
|
elements->append(statement);
|
|
}
|
|
|
|
CommaNode* createCommaExpr(const JSTokenLocation& location, ExpressionNode* node)
|
|
{
|
|
return new (m_parserArena) CommaNode(location, node);
|
|
}
|
|
|
|
CommaNode* appendToCommaExpr(const JSTokenLocation& location, ExpressionNode*, ExpressionNode* tail, ExpressionNode* next)
|
|
{
|
|
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; }
|
|
|
|
void appendBinaryExpressionInfo(int& operandStackDepth, ExpressionNode* current, const JSTextPosition& exprStart, const JSTextPosition& lhs, const JSTextPosition& rhs, bool hasAssignments)
|
|
{
|
|
operandStackDepth++;
|
|
m_binaryOperandStack.append(std::make_pair(current, BinaryOpInfo(exprStart, lhs, rhs, hasAssignments)));
|
|
}
|
|
|
|
// Logic to handle datastructures used during parsing of binary expressions
|
|
void operatorStackPop(int& operatorStackDepth)
|
|
{
|
|
operatorStackDepth--;
|
|
m_binaryOperatorStack.removeLast();
|
|
}
|
|
bool operatorStackShouldReduce(int precedence)
|
|
{
|
|
// 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)
|
|
{
|
|
operandStackDepth -= amount;
|
|
ASSERT(operandStackDepth >= 0);
|
|
m_binaryOperandStack.shrink(m_binaryOperandStack.size() - amount);
|
|
}
|
|
void appendBinaryOperation(const JSTokenLocation& location, int& operandStackDepth, int&, const BinaryOperand& lhs, const BinaryOperand& rhs)
|
|
{
|
|
operandStackDepth++;
|
|
m_binaryOperandStack.append(std::make_pair(makeBinaryNode(location, m_binaryOperatorStack.last().first, lhs, rhs), BinaryOpInfo(lhs.second, rhs.second)));
|
|
}
|
|
void operatorStackAppend(int& operatorStackDepth, int op, int precedence)
|
|
{
|
|
operatorStackDepth++;
|
|
m_binaryOperatorStack.append(std::make_pair(op, precedence));
|
|
}
|
|
ExpressionNode* popOperandStack(int&)
|
|
{
|
|
ExpressionNode* result = m_binaryOperandStack.last().first;
|
|
m_binaryOperandStack.removeLast();
|
|
return result;
|
|
}
|
|
|
|
void appendUnaryToken(int& tokenStackDepth, int type, const JSTextPosition& start)
|
|
{
|
|
tokenStackDepth++;
|
|
m_unaryTokenStack.append(std::make_pair(type, start));
|
|
}
|
|
|
|
int unaryTokenStackLastType(int&)
|
|
{
|
|
return m_unaryTokenStack.last().first;
|
|
}
|
|
|
|
const JSTextPosition& unaryTokenStackLastStart(int&)
|
|
{
|
|
return m_unaryTokenStack.last().second;
|
|
}
|
|
|
|
void unaryTokenStackRemoveLast(int& tokenStackDepth)
|
|
{
|
|
tokenStackDepth--;
|
|
m_unaryTokenStack.removeLast();
|
|
}
|
|
|
|
int unaryTokenStackDepth() const
|
|
{
|
|
return m_unaryTokenStack.size();
|
|
}
|
|
|
|
void setUnaryTokenStackDepth(int oldDepth)
|
|
{
|
|
m_unaryTokenStack.shrink(oldDepth);
|
|
}
|
|
|
|
void assignmentStackAppend(int& assignmentStackDepth, ExpressionNode* node, const JSTextPosition& start, const JSTextPosition& divot, int assignmentCount, Operator op)
|
|
{
|
|
assignmentStackDepth++;
|
|
ASSERT(start.offset >= start.lineStartOffset);
|
|
ASSERT(divot.offset >= divot.lineStartOffset);
|
|
m_assignmentInfoStack.append(AssignmentInfo(node, start, divot, assignmentCount, op));
|
|
}
|
|
|
|
ExpressionNode* createAssignment(const JSTokenLocation& location, int& assignmentStackDepth, ExpressionNode* rhs, int initialAssignmentCount, int currentAssignmentCount, const JSTextPosition& lastTokenEnd)
|
|
{
|
|
AssignmentInfo& info = m_assignmentInfoStack.last();
|
|
ExpressionNode* result = makeAssignNode(location, info.m_node, info.m_op, rhs, info.m_initAssignments != initialAssignmentCount, info.m_initAssignments != currentAssignmentCount, info.m_start, info.m_divot + 1, lastTokenEnd);
|
|
m_assignmentInfoStack.removeLast();
|
|
assignmentStackDepth--;
|
|
return result;
|
|
}
|
|
|
|
PropertyNode::Type getType(const Property& property) const { return property->type(); }
|
|
bool isUnderscoreProtoSetter(const Property& property) const { return PropertyNode::isUnderscoreProtoSetter(m_vm, *property); }
|
|
bool isResolve(ExpressionNode* expr) const { return expr->isResolveNode(); }
|
|
|
|
ExpressionNode* createDestructuringAssignment(const JSTokenLocation& location, DestructuringPattern pattern, ExpressionNode* initializer)
|
|
{
|
|
return new (m_parserArena) DestructuringAssignmentNode(location, pattern, initializer);
|
|
}
|
|
|
|
ArrayPattern createArrayPattern(const JSTokenLocation&)
|
|
{
|
|
return new (m_parserArena) ArrayPatternNode();
|
|
}
|
|
|
|
void appendArrayPatternSkipEntry(ArrayPattern node, const JSTokenLocation& location)
|
|
{
|
|
node->appendIndex(ArrayPatternNode::BindingType::Elision, location, nullptr, nullptr);
|
|
}
|
|
|
|
void appendArrayPatternEntry(ArrayPattern node, const JSTokenLocation& location, DestructuringPattern pattern, ExpressionNode* defaultValue)
|
|
{
|
|
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 new (m_parserArena) ObjectPatternNode();
|
|
}
|
|
|
|
void appendObjectPatternEntry(ObjectPattern node, const JSTokenLocation& location, bool wasString, const Identifier& identifier, DestructuringPattern pattern, ExpressionNode* defaultValue)
|
|
{
|
|
node->appendEntry(location, identifier, wasString, pattern, defaultValue, ObjectPatternNode::BindingType::Element);
|
|
tryInferNameInPattern(pattern, defaultValue);
|
|
}
|
|
|
|
void appendObjectPatternEntry(VM& vm, ObjectPattern node, const JSTokenLocation& location, ExpressionNode* propertyExpression, DestructuringPattern pattern, ExpressionNode* defaultValue)
|
|
{
|
|
node->appendEntry(vm, location, propertyExpression, pattern, defaultValue, ObjectPatternNode::BindingType::Element);
|
|
tryInferNameInPattern(pattern, defaultValue);
|
|
}
|
|
|
|
void appendObjectPatternRestEntry(VM& vm, ObjectPattern node, const JSTokenLocation& location, DestructuringPattern pattern)
|
|
{
|
|
node->appendEntry(vm, location, nullptr, pattern, nullptr, ObjectPatternNode::BindingType::RestElement);
|
|
}
|
|
|
|
void setContainsObjectRestElement(ObjectPattern node, bool containsRestElement)
|
|
{
|
|
node->setContainsRestElement(containsRestElement);
|
|
}
|
|
|
|
void setContainsComputedProperty(ObjectPattern node, bool containsComputedProperty)
|
|
{
|
|
node->setContainsComputedProperty(containsComputedProperty);
|
|
}
|
|
|
|
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 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()
|
|
: m_features(0)
|
|
, m_numConstants(0)
|
|
{
|
|
}
|
|
int m_features;
|
|
int m_numConstants;
|
|
};
|
|
|
|
static void setExceptionLocation(ThrowableExpressionData* node, const JSTextPosition& divotStart, const JSTextPosition& divot, const JSTextPosition& divotEnd)
|
|
{
|
|
ASSERT(divot.offset >= divot.lineStartOffset);
|
|
node->setExceptionSourceCode(divot, divotStart, divotEnd);
|
|
}
|
|
|
|
void incConstants() { m_scope.m_numConstants++; }
|
|
void usesThis() { m_scope.m_features |= ThisFeature; }
|
|
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;
|
|
}
|
|
void usesNewTarget() { m_scope.m_features |= NewTargetFeature; }
|
|
ExpressionNode* createIntegerLikeNumber(const JSTokenLocation& location, double d)
|
|
{
|
|
return new (m_parserArena) IntegerNode(location, d);
|
|
}
|
|
ExpressionNode* createDoubleLikeNumber(const JSTokenLocation& location, double d)
|
|
{
|
|
return new (m_parserArena) DoubleNode(location, d);
|
|
}
|
|
ExpressionNode* createBigIntWithSign(const JSTokenLocation& location, const Identifier& bigInt, uint8_t radix, bool sign)
|
|
{
|
|
return new (m_parserArena) BigIntNode(location, bigInt, radix, sign);
|
|
}
|
|
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);
|
|
}
|
|
ExpressionNode* createBigIntFromUnaryOperation(const JSTokenLocation& location, bool sign, const BigIntNode& originalNode)
|
|
{
|
|
return createBigIntWithSign(location, originalNode.identifier(), originalNode.radix(), sign);
|
|
}
|
|
|
|
void tryInferNameInPattern(DestructuringPattern pattern, ExpressionNode* defaultValue)
|
|
{
|
|
if (!defaultValue)
|
|
return;
|
|
|
|
if (pattern->isBindingNode()) {
|
|
const Identifier& ident = static_cast<BindingNode*>(pattern)->boundProperty();
|
|
tryInferNameInPatternWithIdentifier(ident, defaultValue);
|
|
} else if (pattern->isAssignmentElementNode()) {
|
|
const ExpressionNode* assignmentTarget = static_cast<AssignmentElementNode*>(pattern)->assignmentTarget();
|
|
if (assignmentTarget->isResolveNode()) {
|
|
const Identifier& ident = static_cast<const ResolveNode*>(assignmentTarget)->identifier();
|
|
tryInferNameInPatternWithIdentifier(ident, defaultValue);
|
|
}
|
|
}
|
|
}
|
|
|
|
void tryInferNameInPatternWithIdentifier(const Identifier& ident, ExpressionNode* defaultValue)
|
|
{
|
|
if (defaultValue->isBaseFuncExprNode()) {
|
|
auto metadata = static_cast<BaseFuncExprNode*>(defaultValue)->metadata();
|
|
metadata->setEcmaName(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;
|
|
Vector<AssignmentInfo, 10, UnsafeVectorOverflow> m_assignmentInfoStack;
|
|
Vector<std::pair<int, int>, 10, UnsafeVectorOverflow> m_binaryOperatorStack;
|
|
Vector<std::pair<int, JSTextPosition>, 10, UnsafeVectorOverflow> m_unaryTokenStack;
|
|
int m_evalCount;
|
|
};
|
|
|
|
ExpressionNode* ASTBuilder::makeTypeOfNode(const JSTokenLocation& location, ExpressionNode* expr)
|
|
{
|
|
if (expr->isResolveNode()) {
|
|
ResolveNode* resolve = static_cast<ResolveNode*>(expr);
|
|
return new (m_parserArena) TypeOfResolveNode(location, resolve->identifier());
|
|
}
|
|
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->isOptionalChain()) {
|
|
OptionalChainNode* optionalChain = static_cast<OptionalChainNode*>(expr);
|
|
if (optionalChain->expr()->isLocation()) {
|
|
ASSERT(!optionalChain->expr()->isResolveNode());
|
|
optionalChain->setExpr(makeDeleteNode(location, optionalChain->expr(), start, divot, end));
|
|
return optionalChain;
|
|
}
|
|
}
|
|
|
|
if (!expr->isLocation())
|
|
return new (m_parserArena) DeleteValueNode(location, expr);
|
|
if (expr->isResolveNode()) {
|
|
ResolveNode* resolve = static_cast<ResolveNode*>(expr);
|
|
return new (m_parserArena) DeleteResolveNode(location, resolve->identifier(), divot, start, end);
|
|
}
|
|
if (expr->isBracketAccessorNode()) {
|
|
BracketAccessorNode* bracket = static_cast<BracketAccessorNode*>(expr);
|
|
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_parserArena) DeleteDotNode(location, dot->base(), dot->identifier(), divot, start, end);
|
|
}
|
|
|
|
ExpressionNode* ASTBuilder::makeNegateNode(const JSTokenLocation& location, ExpressionNode* n)
|
|
{
|
|
if (n->isNumber()) {
|
|
const NumberNode& numberNode = static_cast<const NumberNode&>(*n);
|
|
return createNumberFromUnaryOperation(location, -numberNode.value(), numberNode);
|
|
}
|
|
|
|
if (n->isBigInt()) {
|
|
const BigIntNode& bigIntNode = static_cast<const BigIntNode&>(*n);
|
|
return createBigIntFromUnaryOperation(location, !bigIntNode.sign(), bigIntNode);
|
|
}
|
|
|
|
return new (m_parserArena) NegateNode(location, n);
|
|
}
|
|
|
|
ExpressionNode* ASTBuilder::makeBitwiseNotNode(const JSTokenLocation& location, ExpressionNode* expr)
|
|
{
|
|
if (expr->isNumber())
|
|
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()) {
|
|
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_parserArena) UnaryPlusNode(location, expr2);
|
|
|
|
if (expr2->isNumber() && static_cast<NumberNode*>(expr2)->value() == 1)
|
|
return new (m_parserArena) UnaryPlusNode(location, expr1);
|
|
|
|
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()) {
|
|
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()) {
|
|
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()) {
|
|
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()) {
|
|
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()) {
|
|
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()) {
|
|
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()) {
|
|
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()) {
|
|
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()) {
|
|
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()) {
|
|
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::makeCoalesceNode(const JSTokenLocation& location, ExpressionNode* expr1, ExpressionNode* expr2)
|
|
{
|
|
// Optimization for `x?.y ?? z`.
|
|
if (expr1->isOptionalChain()) {
|
|
OptionalChainNode* optionalChain = static_cast<OptionalChainNode*>(expr1);
|
|
if (!optionalChain->expr()->isDeleteNode()) {
|
|
constexpr bool hasAbsorbedOptionalChain = true;
|
|
return new (m_parserArena) CoalesceNode(location, optionalChain->expr(), expr2, hasAbsorbedOptionalChain);
|
|
}
|
|
}
|
|
constexpr bool hasAbsorbedOptionalChain = false;
|
|
return new (m_parserArena) CoalesceNode(location, expr1, expr2, hasAbsorbedOptionalChain);
|
|
}
|
|
|
|
ExpressionNode* ASTBuilder::makeFunctionCallNode(const JSTokenLocation& location, ExpressionNode* func, bool previousBaseWasSuper, ArgumentsNode* args, const JSTextPosition& divotStart, const JSTextPosition& divot, const JSTextPosition& divotEnd, size_t callOrApplyChildDepth, bool isOptionalCall)
|
|
{
|
|
ASSERT(divot.offset >= divot.lineStartOffset);
|
|
if (func->isSuperNode())
|
|
usesSuperCall();
|
|
|
|
if (func->isBytecodeIntrinsicNode()) {
|
|
ASSERT(!isOptionalCall);
|
|
BytecodeIntrinsicNode* intrinsic = static_cast<BytecodeIntrinsicNode*>(func);
|
|
if (intrinsic->type() == BytecodeIntrinsicNode::Type::Constant && intrinsic->entry().type() == BytecodeIntrinsicRegistry::Type::Emitter)
|
|
return new (m_parserArena) BytecodeIntrinsicNode(BytecodeIntrinsicNode::Type::Function, location, intrinsic->entry(), intrinsic->identifier(), args, divot, divotStart, divotEnd);
|
|
}
|
|
|
|
if (func->isOptionalChain()) {
|
|
OptionalChainNode* optionalChain = static_cast<OptionalChainNode*>(func);
|
|
if (optionalChain->expr()->isLocation()) {
|
|
ASSERT(!optionalChain->expr()->isResolveNode());
|
|
// We must take care to preserve our `this` value in cases like `a?.b?.()` and `(a?.b)()`, respectively.
|
|
if (isOptionalCall)
|
|
return makeFunctionCallNode(location, optionalChain->expr(), previousBaseWasSuper, args, divotStart, divot, divotEnd, callOrApplyChildDepth, isOptionalCall);
|
|
optionalChain->setExpr(makeFunctionCallNode(location, optionalChain->expr(), previousBaseWasSuper, args, divotStart, divot, divotEnd, callOrApplyChildDepth, isOptionalCall));
|
|
return optionalChain;
|
|
}
|
|
}
|
|
|
|
if (!func->isLocation())
|
|
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 && !isOptionalCall) {
|
|
usesEval();
|
|
return new (m_parserArena) EvalFunctionCallNode(location, 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_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 = nullptr;
|
|
if (!previousBaseWasSuper && (dot->identifier() == m_vm.propertyNames->builtinNames().callPublicName() || dot->identifier() == m_vm.propertyNames->builtinNames().callPrivateName()))
|
|
node = new (m_parserArena) CallFunctionCallDotNode(location, dot->base(), dot->identifier(), dot->type(), args, divot, divotStart, divotEnd, callOrApplyChildDepth);
|
|
else if (!previousBaseWasSuper && (dot->identifier() == m_vm.propertyNames->builtinNames().applyPublicName() || dot->identifier() == m_vm.propertyNames->builtinNames().applyPrivateName())) {
|
|
// FIXME: This check is only needed because we haven't taught the bytecode generator to inline
|
|
// Reflect.apply yet. See https://bugs.webkit.org/show_bug.cgi?id=190668.
|
|
if (!dot->base()->isResolveNode() || static_cast<ResolveNode*>(dot->base())->identifier() != m_vm.propertyNames->Reflect)
|
|
node = new (m_parserArena) ApplyFunctionCallDotNode(location, dot->base(), dot->identifier(), dot->type(), args, divot, divotStart, divotEnd, callOrApplyChildDepth);
|
|
} else if (!previousBaseWasSuper
|
|
&& dot->identifier() == m_vm.propertyNames->hasOwnProperty
|
|
&& args->m_listNode
|
|
&& args->m_listNode->m_expr
|
|
&& args->m_listNode->m_expr->isResolveNode()
|
|
&& !args->m_listNode->m_next
|
|
&& (dot->base()->isResolveNode() || dot->base()->isThisNode())) {
|
|
// We match the AST pattern:
|
|
// <resolveNode|thisNode>.hasOwnProperty(<resolveNode>)
|
|
// i.e:
|
|
// o.hasOwnProperty(p)
|
|
node = new (m_parserArena) HasOwnPropertyFunctionCallDotNode(location, dot->base(), dot->identifier(), dot->type(), args, divot, divotStart, divotEnd);
|
|
}
|
|
if (!node)
|
|
node = new (m_parserArena) FunctionCallDotNode(location, dot->base(), dot->identifier(), dot->type(), args, divot, divotStart, divotEnd);
|
|
node->setSubexpressionInfo(dot->divot(), dot->divotEnd().offset);
|
|
return node;
|
|
}
|
|
|
|
ExpressionNode* ASTBuilder::makeBinaryNode(const JSTokenLocation& location, int token, std::pair<ExpressionNode*, BinaryOpInfo> lhs, std::pair<ExpressionNode*, BinaryOpInfo> rhs)
|
|
{
|
|
switch (token) {
|
|
case COALESCE:
|
|
return makeCoalesceNode(location, lhs.first, rhs.first);
|
|
|
|
case OR:
|
|
return new (m_parserArena) LogicalOpNode(location, lhs.first, rhs.first, LogicalOperator::Or);
|
|
|
|
case AND:
|
|
return new (m_parserArena) LogicalOpNode(location, lhs.first, rhs.first, LogicalOperator::And);
|
|
|
|
case BITOR:
|
|
return makeBitOrNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case BITXOR:
|
|
return makeBitXOrNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case BITAND:
|
|
return makeBitAndNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case EQEQ:
|
|
return new (m_parserArena) EqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case NE:
|
|
return new (m_parserArena) NotEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case STREQ:
|
|
return new (m_parserArena) StrictEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case STRNEQ:
|
|
return new (m_parserArena) NotStrictEqualNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case LT:
|
|
return new (m_parserArena) LessNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case GT:
|
|
return new (m_parserArena) GreaterNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case LE:
|
|
return new (m_parserArena) LessEqNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case GE:
|
|
return new (m_parserArena) GreaterEqNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case INSTANCEOF: {
|
|
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_parserArena) InNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
setExceptionLocation(node, lhs.second.start, rhs.second.start, rhs.second.end);
|
|
return node;
|
|
}
|
|
|
|
case LSHIFT:
|
|
return makeLeftShiftNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case RSHIFT:
|
|
return makeRightShiftNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case URSHIFT:
|
|
return makeURightShiftNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case PLUS:
|
|
return makeAddNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case MINUS:
|
|
return makeSubNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case TIMES:
|
|
return makeMultNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
case DIVIDE:
|
|
return makeDivNode(location, lhs.first, rhs.first, rhs.second.hasAssignment);
|
|
|
|
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 nullptr;
|
|
}
|
|
|
|
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()) {
|
|
ASSERT(loc->isFunctionCall());
|
|
return new (m_parserArena) AssignErrorNode(location, divot, start, end);
|
|
}
|
|
|
|
if (loc->isResolveNode()) {
|
|
ResolveNode* resolve = static_cast<ResolveNode*>(loc);
|
|
|
|
if (op == Operator::Equal) {
|
|
if (expr->isBaseFuncExprNode()) {
|
|
auto metadata = static_cast<BaseFuncExprNode*>(expr)->metadata();
|
|
metadata->setEcmaName(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;
|
|
}
|
|
|
|
if (op == Operator::CoalesceEq || op == Operator::OrEq || op == Operator::AndEq) {
|
|
if (expr->isBaseFuncExprNode()) {
|
|
auto metadata = static_cast<BaseFuncExprNode*>(expr)->metadata();
|
|
metadata->setEcmaName(resolve->identifier());
|
|
} else if (expr->isClassExprNode())
|
|
static_cast<ClassExprNode*>(expr)->setEcmaName(resolve->identifier());
|
|
return new (m_parserArena) ShortCircuitReadModifyResolveNode(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 == Operator::Equal)
|
|
return new (m_parserArena) AssignBracketNode(location, bracket->base(), bracket->subscript(), expr, locHasAssignments, exprHasAssignments, bracket->divot(), start, end);
|
|
|
|
if (op == Operator::CoalesceEq || op == Operator::OrEq || op == Operator::AndEq) {
|
|
auto* node = new (m_parserArena) ShortCircuitReadModifyBracketNode(location, bracket->base(), bracket->subscript(), op, expr, locHasAssignments, exprHasAssignments, divot, start, end);
|
|
node->setSubexpressionInfo(bracket->divot(), bracket->divotEnd().offset);
|
|
return node;
|
|
}
|
|
|
|
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 == Operator::Equal)
|
|
return new (m_parserArena) AssignDotNode(location, dot->base(), dot->identifier(), dot->type(), expr, exprHasAssignments, dot->divot(), start, end);
|
|
|
|
if (op == Operator::CoalesceEq || op == Operator::OrEq || op == Operator::AndEq) {
|
|
auto* node = new (m_parserArena) ShortCircuitReadModifyDotNode(location, dot->base(), dot->identifier(), op, expr, exprHasAssignments, divot, start, end);
|
|
node->setSubexpressionInfo(dot->divot(), dot->divotEnd().offset);
|
|
return node;
|
|
}
|
|
|
|
ReadModifyDotNode* node = new (m_parserArena) ReadModifyDotNode(location, dot->base(), dot->identifier(), dot->type(), 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_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_parserArena) PostfixNode(location, expr, op, divot, start, end);
|
|
}
|
|
|
|
}
|