Bug 513464 - Remove Nashorn extension from JSDT
Signed-off-by: Victor Rubezhny <vrubezhny@redhat.com>
diff --git a/bundles/org.eclipse.wst.jsdt.core/.classpath b/bundles/org.eclipse.wst.jsdt.core/.classpath
index 1963e95..7a72f5c 100644
--- a/bundles/org.eclipse.wst.jsdt.core/.classpath
+++ b/bundles/org.eclipse.wst.jsdt.core/.classpath
@@ -1,11 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
- <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
- <accessrules>
- <accessrule kind="accessible" pattern="**/nashorn/**"/>
- </accessrules>
- </classpathentry>
+ <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8" />
<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
<classpathentry kind="output" path="bin"/>
</classpath>
diff --git a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/DOMASTConverter.java b/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/DOMASTConverter.java
deleted file mode 100644
index f8cec9c..0000000
--- a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/DOMASTConverter.java
+++ /dev/null
@@ -1,1330 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015-2016 Red Hat, Inc.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Red Hat Inc. - initial API and implementation and/or initial documentation
- *******************************************************************************/
-package org.eclipse.wst.jsdt.internal.esprima;
-
-import static org.eclipse.wst.jsdt.core.dom.ASTNode.*;
-
-import java.util.Map;
-import java.util.Stack;
-
-import org.eclipse.core.runtime.Assert;
-import org.eclipse.wst.jsdt.core.UnimplementedException;
-import org.eclipse.wst.jsdt.core.dom.AST;
-import org.eclipse.wst.jsdt.core.dom.ASTNode;
-import org.eclipse.wst.jsdt.core.dom.AbstractTypeDeclaration;
-import org.eclipse.wst.jsdt.core.dom.ArrayAccess;
-import org.eclipse.wst.jsdt.core.dom.ArrayInitializer;
-import org.eclipse.wst.jsdt.core.dom.ArrayName;
-import org.eclipse.wst.jsdt.core.dom.ArrowFunctionExpression;
-import org.eclipse.wst.jsdt.core.dom.Assignment;
-import org.eclipse.wst.jsdt.core.dom.AssignmentName;
-import org.eclipse.wst.jsdt.core.dom.Block;
-import org.eclipse.wst.jsdt.core.dom.BreakStatement;
-import org.eclipse.wst.jsdt.core.dom.CatchClause;
-import org.eclipse.wst.jsdt.core.dom.ClassInstanceCreation;
-import org.eclipse.wst.jsdt.core.dom.Comment;
-import org.eclipse.wst.jsdt.core.dom.ConditionalExpression;
-import org.eclipse.wst.jsdt.core.dom.ContinueStatement;
-import org.eclipse.wst.jsdt.core.dom.DebuggerStatement;
-import org.eclipse.wst.jsdt.core.dom.DoStatement;
-import org.eclipse.wst.jsdt.core.dom.EmptyStatement;
-import org.eclipse.wst.jsdt.core.dom.ExportDeclaration;
-import org.eclipse.wst.jsdt.core.dom.Expression;
-import org.eclipse.wst.jsdt.core.dom.ExpressionStatement;
-import org.eclipse.wst.jsdt.core.dom.FieldAccess;
-import org.eclipse.wst.jsdt.core.dom.ForInStatement;
-import org.eclipse.wst.jsdt.core.dom.ForOfStatement;
-import org.eclipse.wst.jsdt.core.dom.ForStatement;
-import org.eclipse.wst.jsdt.core.dom.FunctionDeclaration;
-import org.eclipse.wst.jsdt.core.dom.FunctionDeclarationStatement;
-import org.eclipse.wst.jsdt.core.dom.FunctionExpression;
-import org.eclipse.wst.jsdt.core.dom.FunctionInvocation;
-import org.eclipse.wst.jsdt.core.dom.IfStatement;
-import org.eclipse.wst.jsdt.core.dom.ImportDeclaration;
-import org.eclipse.wst.jsdt.core.dom.InfixExpression;
-import org.eclipse.wst.jsdt.core.dom.JSdoc;
-import org.eclipse.wst.jsdt.core.dom.JavaScriptUnit;
-import org.eclipse.wst.jsdt.core.dom.LabeledStatement;
-import org.eclipse.wst.jsdt.core.dom.ListExpression;
-import org.eclipse.wst.jsdt.core.dom.MetaProperty;
-import org.eclipse.wst.jsdt.core.dom.Modifier;
-import org.eclipse.wst.jsdt.core.dom.Modifier.ModifierKeyword;
-import org.eclipse.wst.jsdt.core.dom.ModuleSpecifier;
-import org.eclipse.wst.jsdt.core.dom.Name;
-import org.eclipse.wst.jsdt.core.dom.ObjectLiteral;
-import org.eclipse.wst.jsdt.core.dom.ObjectLiteralField;
-import org.eclipse.wst.jsdt.core.dom.ObjectLiteralField.FieldKind;
-import org.eclipse.wst.jsdt.core.dom.ObjectName;
-import org.eclipse.wst.jsdt.core.dom.PostfixExpression;
-import org.eclipse.wst.jsdt.core.dom.PrefixExpression;
-import org.eclipse.wst.jsdt.core.dom.ProgramElement;
-import org.eclipse.wst.jsdt.core.dom.RestElementName;
-import org.eclipse.wst.jsdt.core.dom.ReturnStatement;
-import org.eclipse.wst.jsdt.core.dom.SimpleName;
-import org.eclipse.wst.jsdt.core.dom.SingleVariableDeclaration;
-import org.eclipse.wst.jsdt.core.dom.SpreadElement;
-import org.eclipse.wst.jsdt.core.dom.Statement;
-import org.eclipse.wst.jsdt.core.dom.StringLiteral;
-import org.eclipse.wst.jsdt.core.dom.SuperMethodInvocation;
-import org.eclipse.wst.jsdt.core.dom.SwitchCase;
-import org.eclipse.wst.jsdt.core.dom.SwitchStatement;
-import org.eclipse.wst.jsdt.core.dom.TemplateElement;
-import org.eclipse.wst.jsdt.core.dom.TemplateLiteral;
-import org.eclipse.wst.jsdt.core.dom.ThisExpression;
-import org.eclipse.wst.jsdt.core.dom.ThrowStatement;
-import org.eclipse.wst.jsdt.core.dom.TryStatement;
-import org.eclipse.wst.jsdt.core.dom.TypeDeclaration;
-import org.eclipse.wst.jsdt.core.dom.TypeDeclarationExpression;
-import org.eclipse.wst.jsdt.core.dom.TypeDeclarationStatement;
-import org.eclipse.wst.jsdt.core.dom.VariableDeclaration;
-import org.eclipse.wst.jsdt.core.dom.VariableDeclarationExpression;
-import org.eclipse.wst.jsdt.core.dom.VariableDeclarationFragment;
-import org.eclipse.wst.jsdt.core.dom.VariableDeclarationStatement;
-import org.eclipse.wst.jsdt.core.dom.VariableKind;
-import org.eclipse.wst.jsdt.core.dom.WhileStatement;
-import org.eclipse.wst.jsdt.core.dom.WithStatement;
-import org.eclipse.wst.jsdt.core.dom.YieldExpression;
-
-import jdk.nashorn.api.scripting.ScriptObjectMirror;
-
-/**
- * Converts ESTree AST to DOM AST.
- *
- * @author Gorkem Ercan
- *
- */
-public class DOMASTConverter extends EStreeVisitor{
-
- private final AST ast;
- private Stack<ASTNode> nodes = new Stack<ASTNode>();
- private final JavaScriptUnit root;
- // Because switch also hosts all the statements in the case
- // statement we need to pointer to hold the currently processed switch
- private Stack<SwitchStatement> processingSwitchStatements = new Stack<SwitchStatement>();
-
- /**
- *
- */
- public DOMASTConverter(final JavaScriptUnit unit) {
- if(unit == null )
- throw new IllegalArgumentException();
- this.root = unit;
- this.ast = unit.getAST();
- }
-
- public JavaScriptUnit convert(ScriptObjectMirror jsobject){
- this.traverse(jsobject);
- Assert.isTrue(nodes.empty(),"Some nodes are not processed"); //$NON-NLS-1$
- return root;
- }
-
- /* (non-Javadoc)
- * @see org.eclipse.wst.jsdt.internal.esprima.EStreeVisitor#visit(jdk.nashorn.api.scripting.ScriptObjectMirror, org.eclipse.wst.jsdt.internal.esprima.ESTreeNodeTypes)
- */
- public VisitOptions visit(final ScriptObjectMirror object, final ESTreeNodeTypes nodeType, final String key) {
-
- //Generate the dom AST objects and push it to stack.
- switch(nodeType){
- case Program:
- return convertProgram(object);
- case Identifier:
- return convertIdentifier(object);
- case Literal:
- return convertLiteral(object);
- // Declarations
- case VariableDeclaration:
- return convertVariableDeclaration(object);
- case VariableDeclarator:
- return convertVariableDeclarator(object);
- case FunctionDeclaration:
- return convertFunctionDeclaration(object);
- //Statements
- case ExpressionStatement:
- return convertExpressionStatement(object);
- case BlockStatement:
- return convertBlockStatement(object);
- case EmptyStatement:
- return convertEmptyStatement(object);
- case DebuggerStatement:
- return convertDebuggerStatememt(object);
- case WithStatement:
- return convertWithStatement(object);
- case ReturnStatement:
- return convertReturnStatement(object);
- case LabeledStatement:
- return converLabeledStatement(object);
- case BreakStatement:
- return convertBreakStatement(object);
- case ContinueStatement:
- return convertContinueStatement(object);
- case IfStatement:
- return convertIfStatement(object);
- case SwitchStatement:
- return convertSwitchStatement(object);
- case SwitchCase:
- return convertSwitchCaseStatement(object);
- case ThrowStatement:
- return convertThrowStatement(object);
- case TryStatement:
- return convertTryStatement(object);
- case CatchClause:
- return convertCatchClause(object);
- case WhileStatement:
- return convertWhileStatement(object);
- case DoWhileStatement:
- return convertDoWhileStatement(object);
- case ForStatement:
- return convertForStatement(object);
- case ForInStatement:
- return convertForInStatement(object);
- case ForOfStatement:
- return convertForOfStatement(object);
- case ClassDeclaration:
- return convertClassDeclaration(object);
- case ClassExpression:
- return convertClassExpression(object);
- case ClassBody:
- // ClassBody is represented with a single TypeDeclaration
- // pushing the TypeDeclaration created for ClassDeclaration
- // twice to stack so that endVisit does not fail.
- return VisitOptions.CONTINUE;
- case MethodDefinition:
- return convertMethodDefinition(object);
- // Expressions
- case ThisExpression:
- return convertThisExpression(object);
- case ArrayExpression:
- return convertArrayExpression(object);
- case ObjectExpression:
- return convertObjectExpression(object);
- case Property:// related to ObjectExpression
- return convertPropertyExpression(object);
- case FunctionExpression:
- return convertFunctionExpression(object);
- case UnaryExpression://intentional
- case UpdateExpression:
- return convertUnaryOperation(object);
- case BinaryExpression: //intentional
- case LogicalExpression:
- return convertBinaryExpression(object);
- case AssignmentExpression:
- return convertAssignmentExpression(object);
- case MemberExpression:
- return convertMemberExpression(object);
- case ConditionalExpression:
- return convertConditionalExpression(object);
- case CallExpression:
- return convertCallExpression(object);
- case SequenceExpression:
- return convertSequenceExpression(object);
- case YieldExpression:
- return convertYieldExpression(object);
- case NewExpression:
- return convertNewExpression(object);
- case ArrowFunctionExpression:
- return convertArrowFunctionExpression(object);
- case Super://Skip super handled on callExpression
- return VisitOptions.CONTINUE;
- case RestElement:
- return convertRestElement(object);
- case ArrayPattern:
- return convertArrayPattern(object);
- case ObjectPattern:
- return convertObjectPattern(object);
- case TemplateLiteral:
- case TaggedTemplateExpression:
- return convertTemplateLiteral(object,key);
- case TemplateElement:
- return convertTemplateElement(object);
- case AssignmentPattern:
- return convertAssignmentPattern(object);
- case SpreadElement:
- return convertSpreadElement(object);
- case MetaProperty:
- return convertMetaProperty(object);
- case ImportDeclaration:
- return convertImportDeclaration(object);
- case ImportSpecifier:
- return convertImportSpecifer(object, false, false);
- case ImportDefaultSpecifier:
- return convertImportSpecifer(object, true, false);
- case ImportNamespaceSpecifier:
- return convertImportSpecifer(object, false, true);
- case ExportNamedDeclaration:
- return convertExportDeclaration(object, false, false);
- case ExportSpecifier:
- return convertExportSpecifier(object);
- case ExportAllDeclaration:
- return convertExportDeclaration(object, false, true);
- case ExportDefaultDeclaration:
- return convertExportDeclaration(object, true, false);
-
- default:
- throw new UnimplementedException(nodeType.getTypeString() + " conversion is not implemented"); //$NON-NLS-1$
- }
- }
-
-
-
-
-
- /* (non-Javadoc)
- * @see org.eclipse.wst.jsdt.internal.esprima.EStreeVisitor#endVisit(jdk.nashorn.api.scripting.ScriptObjectMirror, org.eclipse.wst.jsdt.internal.esprima.ESTreeNodeTypes)
- */
- public VisitOptions endVisit(final ScriptObjectMirror object, final ESTreeNodeTypes nodeType, final String key) {
-
- if(nodeType == ESTreeNodeTypes.Super)//Skip nothing is pushed for these nodes during visit
- return VisitOptions.CONTINUE;
-
- //Read the dom ast model objects from stack and connect them to parent.
- ASTNode current = nodes.pop();
- //Set source range for all the nodes.
- //we can safely move this to visit
- setRange(object, current);
-
- ASTNode parent = null;
- if( nodeType != ESTreeNodeTypes.Program){ //Nodes can be empty only for Program
- Assert.isTrue(!nodes.empty());
- parent = nodes.peek();
- }
-
- try{
- //clean-up the switch statement
- if(current.getNodeType() == SWITCH_STATEMENT)
- processingSwitchStatements.pop();
- if(current.getNodeType() == MODULE_SPECIFIER)
- assignModuleSpecifier((ModuleSpecifier) current, parent);
- else
- if(current instanceof Expression )
- assignExpressionToParent((Expression) current, parent, key);
- else
- if(current instanceof ProgramElement)
- assignStatementToParent((ProgramElement) current, parent, key);
- else
- if(current instanceof VariableDeclaration)
- assignVariableDeclarationToParent((VariableDeclaration) current, parent);
- else
- if(current.getNodeType() == CATCH_CLAUSE)
- assignCatchToTry(current, parent);
- else
- if(current.getNodeType() == TEMPLATE_ELEMENT)
- assingTemplateElement(current, parent);
- else
- if(current.getNodeType() == IMPORT_DECLARATION)
- root.imports().add(current);
- else
- if(current.getNodeType() == EXPORT_DECLARATION)
- root.exports().add(current);
-
- }catch(Exception e){
- StringBuilder sb = new StringBuilder(e.toString());
- sb.append(" assigning "); //$NON-NLS-1$
- sb.append(current.getClass().getSimpleName());
- sb.append("["); //$NON-NLS-1$
- sb.append(current);
- sb.append("]"); //$NON-NLS-1$
- if( parent!=null ){
- sb.append(" to "); //$NON-NLS-1$
- sb.append(parent.getClass().getSimpleName());
- sb.append("["); //$NON-NLS-1$
- sb.append(parent);
- sb.append("]"); //$NON-NLS-1$
- }
- System.out.println(sb);
- throw e;
- }
- if(current.getStartPosition() < 0)
- throw new IllegalStateException();
-
- return VisitOptions.CONTINUE;
- }
-
- private void assignModuleSpecifier(ModuleSpecifier module, ASTNode parent) {
- switch(parent.getNodeType()){
- case IMPORT_DECLARATION:
- ImportDeclaration importDec = (ImportDeclaration) parent;
- importDec.specifiers().add(module);
- break;
- case EXPORT_DECLARATION:
- ExportDeclaration exportDec = (ExportDeclaration)parent;
- exportDec.specifiers().add(module);
- break;
- default:
- throw new UnimplementedException("Assigning "+ module + " to "+parent+ " is not handled"); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
-
- }
-
- }
-
- private void assingTemplateElement(ASTNode current, ASTNode parent) {
- ((TemplateLiteral) parent).elements().add(current);
- }
-
-
- private void setRange(final ScriptObjectMirror object, final ASTNode node){
- Object o = object.getMember("range"); //$NON-NLS-1$
- if (ScriptObjectMirror.isUndefined(o)) return;
- ScriptObjectMirror range = (ScriptObjectMirror) o;
- Number x = (Number) range.getSlot(0);
- Number y = (Number) range.getSlot(1);
- final int startPosition = x.intValue();
- final int length = y.intValue() - x.intValue();
- node.setSourceRange(startPosition, length);
-
-
- switch (node.getNodeType()) {
- case ASTNode.FUNCTION_DECLARATION_STATEMENT :
- FunctionDeclarationStatement fd = (FunctionDeclarationStatement) node;
- if(fd.getDeclaration().getJavadoc()==null)
- fd.getDeclaration().setSourceRange(startPosition, length);
- else {
- final int jsdocStart = fd.getDeclaration().getJavadoc().getStartPosition();
- fd.getDeclaration().setSourceRange(jsdocStart, length + startPosition - jsdocStart);
- }
- break;
- case ASTNode.FUNCTION_EXPRESSION:
- FunctionExpression fe = (FunctionExpression)node;
- if(fe.getMethod().getJavadoc() == null )
- fe.getMethod().setSourceRange(startPosition, length);
- else {
- final int jsdocStart = fe.getMethod().getJavadoc().getStartPosition();
- fe.getMethod().setSourceRange(jsdocStart, length + startPosition - jsdocStart);
- }
- break;
- case ASTNode.FUNCTION_DECLARATION:
- FunctionDeclaration fdec = (FunctionDeclaration)node;
- if(fdec.getJavadoc() != null){
- final int jsdocStart = fdec.getJavadoc().getStartPosition();
- fdec.setSourceRange(jsdocStart, length + startPosition - jsdocStart);
- }
- break;
- case ASTNode.VARIABLE_DECLARATION_STATEMENT:
- VariableDeclarationStatement vds = (VariableDeclarationStatement)node;
- if(vds.getJavadoc() != null){
- final int jsdocStart = vds.getJavadoc().getStartPosition();
- vds.setSourceRange(jsdocStart, length + startPosition - jsdocStart);
- }
- break;
- }
- }
-
- private void assignStatementToParent(final ProgramElement statement, final ASTNode parent, final String key){
- switch(parent.getNodeType()){
- case JAVASCRIPT_UNIT:
- JavaScriptUnit unit = (JavaScriptUnit)parent;
- unit.statements().add(statement);
- break;
- case FUNCTION_EXPRESSION:
- FunctionExpression fe = (FunctionExpression)parent;
- //assign to contained FunctionDeclaration
- fe.getMethod().setBody((Block) statement);
- break;
- case FUNCTION_DECLARATION:
- FunctionDeclaration fdec = (FunctionDeclaration)parent;
- fdec.setBody((Block)statement);
- break;
- case FUNCTION_DECLARATION_STATEMENT:
- FunctionDeclarationStatement fdecS = (FunctionDeclarationStatement)parent;
- fdecS.getDeclaration().setBody((Block)statement);
- break;
- case ARROW_FUNCTION_EXPRESSION:
- ArrowFunctionExpression af = (ArrowFunctionExpression) parent;
- af.setBody((Block)statement);
- break;
- case BLOCK:
- Block b = (Block) parent;
- b.statements().add(statement);
- break;
- case WITH_STATEMENT:
- WithStatement ws = (WithStatement)parent;
- ws.setBody((Statement)statement);
- break;
- case LABELED_STATEMENT:
- LabeledStatement ls = (LabeledStatement)parent;
- ls.setBody((Statement)statement);
- break;
- case IF_STATEMENT : {
- IfStatement is = (IfStatement) parent;
- if ("alternate".equals(key)) //$NON-NLS-1$
- is.setElseStatement((Statement) statement);
- else if ("consequent".equals(key)) //$NON-NLS-1$
- is.setThenStatement((Statement) statement);
- break;
- }
- case SWITCH_STATEMENT:
- SwitchStatement ss = (SwitchStatement) parent;
- if(statement.getNodeType() != SWITCH_CASE){
- // case is added during #convertSwitchCase to keep order.
- ss.statements().add(statement);
- }
- break;
- case SWITCH_CASE:
- // all statements on the switchcase goes into switch.
- processingSwitchStatements.peek().statements().add(statement);
- break;
- case CATCH_CLAUSE:
- CatchClause cc = (CatchClause)parent;
- cc.setBody((Block)statement);
- break;
- case TRY_STATEMENT:
- TryStatement ts = (TryStatement)parent;
- if("block".equals(key)) //$NON-NLS-1$
- ts.setBody((Block) statement);
- else
- ts.setFinally((Block) statement);
- break;
- case WHILE_STATEMENT:
- WhileStatement whileS = (WhileStatement)parent;
- whileS.setBody((Statement)statement);
- break;
- case DO_STATEMENT:
- DoStatement ds = (DoStatement)parent;
- ds.setBody((Statement)statement);
- break;
- case FOR_STATEMENT:
- ForStatement fs = (ForStatement)parent;
- fs.setBody((Statement) statement);
- break;
- case FOR_IN_STATEMENT:
- ForInStatement fis = (ForInStatement)parent;
- if("body".equals(key)) //$NON-NLS-1$
- fis.setBody((Statement) statement);
- break;
- case FOR_OF_STATEMENT:
- ForOfStatement fos = (ForOfStatement)parent;
-// if("left".equals(key)) //$NON-NLS-1$
-//// fos.setIterationVariable((Statement) statement);
-//// else if("body".equals(key)) //$NON-NLS-1$
-//// fos.setBody((Statement) statement);
- break;
- case TYPE_DECLARATION:
- TypeDeclaration typeDec = (TypeDeclaration) parent;
- typeDec.bodyDeclarations().add(statement);
- break;
- case TYPE_DECLARATION_STATEMENT:
- case TYPE_DECLARATION_EXPRESSION:
- //TypeDeclaration is already assigned during convert.
- break;
- case EXPORT_DECLARATION:
- ExportDeclaration edec = (ExportDeclaration) parent;
- if("declaration".equals(key)) //$NON-NLS-1$
- edec.setDeclaration(statement);
- break;
- default:
- throw new UnimplementedException("Assigning "+statement + " to "+parent+ " is not handled"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
- }
- }
-
-
- private void assignVariableDeclarationToParent(VariableDeclaration declaration, ASTNode parent) {
- switch(parent.getNodeType()){
-
- case VARIABLE_DECLARATION_STATEMENT:
- VariableDeclarationStatement vd = (VariableDeclarationStatement)parent;
- vd.fragments().add(declaration);
- break;
- case FUNCTION_EXPRESSION:
- FunctionExpression fe = (FunctionExpression)parent;
- fe.getMethod().parameters().add((SingleVariableDeclaration)declaration);
- break;
- case VARIABLE_DECLARATION_EXPRESSION:
- VariableDeclarationExpression ve = (VariableDeclarationExpression)parent;
- ve.fragments().add(declaration);
- break;
- case FUNCTION_DECLARATION:
- FunctionDeclaration fd = (FunctionDeclaration)parent;
- fd.parameters().add(declaration);
- break;
- default:
- throw new UnimplementedException("Assigning "+ declaration + " to "+parent+ " is not handled"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
- }
-
- }
-
- private void assignExpressionToParent(final Expression expression, final ASTNode parent, final String key ){
-
- switch (parent.getNodeType()) {
- case EXPRESSION_STATEMENT :
- ((ExpressionStatement)parent).setExpression(expression);
- break;
- case ASSIGNMENT:
- if("left".equals(key)) //$NON-NLS-1$
- ((Assignment)parent).setLeftHandSide(expression);
- else
- ((Assignment)parent).setRightHandSide(expression);
- break;
- case VARIABLE_DECLARATION_FRAGMENT:
- if (expression.getNodeType() != SIMPLE_NAME)
- ((VariableDeclarationFragment) parent).setInitializer(expression);
- else
- ((VariableDeclarationFragment) parent).setName((SimpleName) expression);
- break;
- case ARRAY_INITIALIZER:
- ((ArrayInitializer)parent).expressions().add(expression);
- break;
- case OBJECT_LITERAL:
- ((ObjectLiteral)parent).fields().add(expression);
- break;
- case OBJECT_LITERAL_FIELD:
- ObjectLiteralField olf = (ObjectLiteralField)parent;
- if("key".equals(key)) //$NON-NLS-1$
- olf.setFieldName(expression);
- else
- if("value".equals(key)) //$NON-NLS-1$
- olf.setInitializer(expression);
- break;
- case FUNCTION_EXPRESSION:
- FunctionExpression fe = (FunctionExpression)parent;
- if (!"params".equals(key)) //$NON-NLS-1$
- fe.getMethod().setMethodName(expression);
- else
- fe.getMethod().parameters().add(wrapWithSingleVariableDeclaration(expression));
- break;
- case FUNCTION_DECLARATION_STATEMENT:
- FunctionDeclarationStatement fdecS = (FunctionDeclarationStatement)parent;
- if("params".equals(key)) //$NON-NLS-1$
- fdecS.getDeclaration().parameters().add(wrapWithSingleVariableDeclaration(expression));
- //value and key applies to MethodDefiniton
- if("value".equals(key)){ //$NON-NLS-1$
- FunctionExpression fex = (FunctionExpression)expression;
- fdecS.getDeclaration().setBody(((Block) ASTNode.copySubtree(ast, fex.getMethod().getBody())));
- }
- if("key".equals(key)) //$NON-NLS-1$
- fdecS.getDeclaration().setMethodName(expression);
- if("id".equals(key)) //$NON-NLS-1$
- fdecS.getDeclaration().setMethodName(expression);
- break;
- case FUNCTION_DECLARATION:
- FunctionDeclaration fdec = (FunctionDeclaration)parent;
- if("params".equals(key)) //$NON-NLS-1$
- fdec.parameters().add(wrapWithSingleVariableDeclaration(expression));
- //value and key applies to MethodDefiniton
- if("value".equals(key)){ //$NON-NLS-1$
- FunctionExpression fex = (FunctionExpression)expression;
- fdec.setBody(((Block) ASTNode.copySubtree(ast, fex.getMethod().getBody())));
- }
- if("key".equals(key)) //$NON-NLS-1$
- fdec.setMethodName(expression);
- if("id".equals(key)) //$NON-NLS-1$
- fdec.setMethodName(expression);
- break;
- case POSTFIX_EXPRESSION:
- ((PostfixExpression)parent).setOperand(expression);
- break;
- case PREFIX_EXPRESSION:
- ((PrefixExpression)parent).setOperand(expression);
- break;
- case INFIX_EXPRESSION:
- if("left".equals(key)) //$NON-NLS-1$
- ((InfixExpression) parent).setLeftOperand(expression);
- else
- ((InfixExpression) parent).setRightOperand(expression);
- break;
- case FIELD_ACCESS:
- if("object".equals(key)) //$NON-NLS-1$
- ((FieldAccess)parent).setExpression(expression);
- else
- ((FieldAccess)parent).setName((SimpleName)expression);
- break;
- case ARRAY_ACCESS:
- if("object".equals(key)) //$NON-NLS-1$
- ((ArrayAccess)parent).setArray(expression);
- else
- ((ArrayAccess)parent).setIndex(expression);
- break;
- case CONDITIONAL_EXPRESSION:
- ConditionalExpression conditional = (ConditionalExpression)parent;
- if("test".equals(key) ) //$NON-NLS-1$
- conditional.setExpression(expression);
- else if("consequent".equals(key)) //$NON-NLS-1$
- conditional.setThenExpression(expression);
- else
- conditional.setElseExpression(expression);
-
- break;
- case FUNCTION_INVOCATION:
- FunctionInvocation fi = (FunctionInvocation)parent;
- if("arguments".equals(key)) //$NON-NLS-1$
- fi.arguments().add(expression);
- else
- if("callee".equals(key)) //$NON-NLS-1$
- if (expression.getNodeType() != ASTNode.SIMPLE_NAME)
- fi.setExpression(expression);
- else
- fi.setName((SimpleName) expression);
- break;
- case SUPER_METHOD_INVOCATION:
- SuperMethodInvocation smi = (SuperMethodInvocation)parent;
- if("arguments".equals(key)) //$NON-NLS-1$
- smi.arguments().add(expression);
- break;
- case LIST_EXPRESSION:
- ((ListExpression)parent).expressions().add(expression);
- break;
- case YIELD_EXPRESSION:
- ((YieldExpression)parent).setArgument(expression);
- break;
- case CLASS_INSTANCE_CREATION:
- ClassInstanceCreation ci = (ClassInstanceCreation)parent;
- if("callee".equals(key)) //$NON-NLS-1$
- ci.setMember(expression);
- else
- ci.arguments().add(expression);
- break;
- case ARROW_FUNCTION_EXPRESSION:
- ArrowFunctionExpression af = (ArrowFunctionExpression)parent;
- if (!"params".equals(key)) //$NON-NLS-1$
- af.setExpression(expression);
- else
- af.parameters().add(wrapWithSingleVariableDeclaration(expression));
- break;
- case WITH_STATEMENT:
- WithStatement ws = (WithStatement)parent;
- ws.setExpression(expression);
- break;
- case RETURN_STATEMENT:
- ReturnStatement rs = (ReturnStatement)parent;
- rs.setExpression(expression);
- break;
- case LABELED_STATEMENT:
- LabeledStatement ls = (LabeledStatement)parent;
- ls.setLabel((SimpleName)expression);
- break;
- case BREAK_STATEMENT:
- BreakStatement bs = (BreakStatement)parent;
- bs.setLabel((SimpleName)expression);
- break;
- case CONTINUE_STATEMENT:
- ContinueStatement cs = (ContinueStatement)parent;
- cs.setLabel((SimpleName)expression);
- break;
- case IF_STATEMENT:
- IfStatement is = (IfStatement)parent;
- is.setExpression(expression);
- break;
- case SWITCH_STATEMENT:
- SwitchStatement ss = (SwitchStatement)parent;
- ss.setExpression(expression);
- break;
- case SWITCH_CASE:
- SwitchCase sc = (SwitchCase) parent;
- if("test".equals(key)) //$NON-NLS-1$
- sc.setExpression(expression);
- break;
- case THROW_STATEMENT:
- ThrowStatement ts = (ThrowStatement)parent;
- ts.setExpression(expression);
- break;
- case CATCH_CLAUSE:
- CatchClause c =(CatchClause) parent;
- SingleVariableDeclaration d = ast.newSingleVariableDeclaration();
- d.setSourceRange(expression.getStartPosition(), expression.getLength());
- d.setPattern((Name) expression);
- c.setException(d);
- break;
- case WHILE_STATEMENT:
- WhileStatement whileS = (WhileStatement)parent;
- whileS.setExpression(expression);
- break;
- case DO_STATEMENT:
- DoStatement ds = (DoStatement)parent;
- ds.setExpression(expression);
- break;
- case FOR_STATEMENT:
- ForStatement fs=(ForStatement)parent;
- if("test".equals(key)) //$NON-NLS-1$
- fs.setExpression(expression);
- else if("init".equals(key)) //$NON-NLS-1$
- fs.initializers().add(expression);
- else if("update".equals(key)) //$NON-NLS-1$
- fs.updaters().add(expression);
- break;
- case FOR_IN_STATEMENT:
- ForInStatement fis = (ForInStatement)parent;
- if("left".equals(key)) //$NON-NLS-1$
- fis.setIterationVariable(expression);
- else if("right".equals(key)) //$NON-NLS-1$
- fis.setCollection(expression);
- break;
- case FOR_OF_STATEMENT:
-// ForOfStatement fos = (ForOfStatement)parent;
-// if("left".equals(key)) //$NON-NLS-1$
-// fos.setIterationVariable(ast.newExpressionStatement(expression));
-// else if("right".equals(key)) //$NON-NLS-1$
-// fos.setCollection(expression);
- break;
- case TYPE_DECLARATION:
- TypeDeclaration td = (TypeDeclaration) parent;
- if("superClass".equals(key)) //$NON-NLS-1$
- td.setSuperclassExpression(expression);
- else if("id".equals(key)) //$NON-NLS-1$
- td.setName((SimpleName) expression);
- break;
- case TYPE_DECLARATION_STATEMENT:
- break;
- case ARRAY_NAME:
- ArrayName an = (ArrayName) parent;
- an.elements().add(expression);
- break;
- case OBJECT_NAME:
- ObjectName on = (ObjectName)parent;
- on.objectProperties().add(expression);
- break;
- case TEMPLATE_LITERAL:
- TemplateLiteral tl = (TemplateLiteral)parent;
- if("expressions".equals(key)) //$NON-NLS-1$
- tl.expressions().add(expression);
- else
- if("tag".equals(key)) //$NON-NLS-1$
- tl.setTag(expression);
- break;
- case ASSIGNMENT_NAME:
- AssignmentName asn = (AssignmentName)parent;
- if("right".equals(key)) //$NON-NLS-1$
- asn.setRight(expression);
- else
- if("left".equals(key)) //$NON-NLS-1$
- asn.setLeft((Name) expression);
-
- break;
- case REST_ELEMENT_NAME:
- RestElementName ren = (RestElementName) parent;
- if("argument".equals(key)) //$NON-NLS-1$
- ren.setArgument(expression);
- break;
- case SPREAD_ELEMENT:
- SpreadElement sel= (SpreadElement) parent;
- if("argument".equals(key)) //$NON-NLS-1$
- sel.setArgument(expression);
- break;
- case IMPORT_DECLARATION:
- ImportDeclaration idec = (ImportDeclaration) parent;
- idec.setSource((StringLiteral)expression);
- break;
- case MODULE_SPECIFIER:
- ModuleSpecifier specifier = (ModuleSpecifier) parent;
- if("local".equals(key)) //$NON-NLS-1$
- specifier.setLocal((SimpleName) expression);
- if("imported".equals(key)) //$NON-NLS-1$
- specifier.setDiscoverableName((SimpleName) expression);
- break;
- case EXPORT_DECLARATION:
- ExportDeclaration edec = (ExportDeclaration) parent;
- if("source".equals(key)) //$NON-NLS-1$
- edec.setSource((StringLiteral) expression);
- break;
- default :
- throw new UnimplementedException("Assigning "+expression + " to "+parent+ " is not handled");//$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
- }
- }
-
- private SingleVariableDeclaration wrapWithSingleVariableDeclaration(final Expression expression) {
- SingleVariableDeclaration $ = ast.newSingleVariableDeclaration();
- $.setPattern((Name) expression);
- $.setSourceRange(expression.getStartPosition(),expression.getLength());
- return $;
- }
-
- private JSdoc buildJSDoc(ScriptObjectMirror object){
- if(!object.hasMember("leadingComments")) return null; //$NON-NLS-1$
- Object commentObj = object.getMember("leadingComments"); //$NON-NLS-1$
- if(ScriptObjectMirror.isUndefined(commentObj)) return null;
- ScriptObjectMirror comments = (ScriptObjectMirror)commentObj;
- Object[] arrayElements = comments.entrySet().toArray();
- for (int i = 0 ; i< arrayElements.length; ++i) {
- Map.Entry<String, Object> entry = (java.util.Map.Entry<String, Object>) arrayElements[i];
- Comment comment = EsprimaParser.createComment((ScriptObjectMirror) entry.getValue(), this.ast);
- if(comment.isDocComment())
- return (JSdoc) comment;
- }
- return null;
- }
-
- private void assignCatchToTry(ASTNode current, ASTNode parent) {
- ((TryStatement) parent).catchClauses().add(current);
- }
-
- private VisitOptions convertLiteral(final ScriptObjectMirror object) {
- Object value = object.getMember("value"); //$NON-NLS-1$
- String raw = (String)object.getMember("raw"); //$NON-NLS-1$
- Expression literal = null;
- if(value instanceof Number ){
- literal = ast.newNumberLiteral(raw);
- }else
- if(value instanceof Boolean){
- literal = ast.newBooleanLiteral(raw);
- }else
- if(value instanceof String){
- literal = ast.newStringLiteral();
- ((StringLiteral) literal).setEscapedValue(raw);
- }else
- if(object.hasMember("regex")){ //$NON-NLS-1$
- literal = ast.newRegularExpressionLiteral(raw);
- }else
- if(value == null ){
- literal = ast.newNullLiteral();
- }
-
- if(literal == null ){
- throw new UnimplementedException("Failed to translate Literal " + value); //$NON-NLS-1$
- }
- else{
- nodes.push(literal);
- }
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertProgram(final ScriptObjectMirror object){
- nodes.push(root);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertVariableDeclaration(final ScriptObjectMirror object) {
- String kind = (String) object.getMember("kind"); //$NON-NLS-1$
- VariableKind variableKind = VariableKind.VAR;
- if(kind.equals("let")) //$NON-NLS-1$
- variableKind = VariableKind.LET;
- else if(kind.equals("const")) //$NON-NLS-1$
- variableKind = VariableKind.CONST;
-
- int parentType = nodes.peek().getNodeType();
- if(parentType == FOR_STATEMENT ){// For statements use expression
- final VariableDeclarationExpression e = ast.newVariableDeclarationExpression();
- e.setKind(variableKind);
- nodes.push(e);
- }else{
- final VariableDeclarationStatement e = ast.newVariableDeclarationStatement();
- e.setJavadoc(buildJSDoc(object));
- e.setKind(variableKind);
- nodes.push(e);
- }
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertVariableDeclarator(final ScriptObjectMirror object) {
- final VariableDeclarationFragment f = ast.newVariableDeclarationFragment();
- nodes.push(f);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertIdentifier(final ScriptObjectMirror object) {
- final String s = (String)object.getMember("name"); //$NON-NLS-1$
- SimpleName name = ast.newSimpleName(s);
- nodes.push(name);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertExpressionStatement(final ScriptObjectMirror object) {
- final ExpressionStatement es = ast.newExpressionStatement();
- nodes.push(es);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertAssignmentExpression(final ScriptObjectMirror object) {
- final Assignment a = ast.newAssignment();
- final String op = (String) object.getMember("operator"); //$NON-NLS-1$
- a.setOperator(Assignment.Operator.toOperator(op));
- nodes.push(a);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertThisExpression(final ScriptObjectMirror object) {
- final ThisExpression t = ast.newThisExpression();
- nodes.push(t);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertArrayExpression(final ScriptObjectMirror object) {
- ArrayInitializer ai = ast.newArrayInitializer();
- nodes.push(ai);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertObjectExpression(final ScriptObjectMirror object) {
- ObjectLiteral o = ast.newObjectLiteral();
- nodes.push(o);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertPropertyExpression(final ScriptObjectMirror object) {
- ObjectLiteralField of = ast.newObjectLiteralField();
- String kind = (String) object.getMember("kind"); //$NON-NLS-1$
- FieldKind k = null;
- if("init".equals(kind)) //$NON-NLS-1$
- k = FieldKind.INIT;
- else if("get".equals(kind)) //$NON-NLS-1$
- k = FieldKind.GET;
- else if("set".equals(kind)) //$NON-NLS-1$
- k = FieldKind.SET;
-
- of.setKind(k);
- nodes.push(of);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertFunctionExpression(final ScriptObjectMirror object) {
- // We break from the usual pattern and create a functionDeclaration.
- // has a single object type for function expression while DOM AST
- // needs two objects for the same result. All further assignments needs
- // to handle this properly
- FunctionExpression fe = ast.newFunctionExpression();
- FunctionDeclaration d = ast.newFunctionDeclaration();
- Boolean isGenerator = (Boolean)object.getMember("generator"); //$NON-NLS-1$
- d.setGenerator(isGenerator.booleanValue());
- fe.setMethod(d);
- nodes.add(fe);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertFunctionDeclaration(final ScriptObjectMirror object) {
- FunctionDeclaration dec = ast.newFunctionDeclaration();
- Boolean isGenerator = (Boolean)object.getMember("generator"); //$NON-NLS-1$
- dec.setGenerator(isGenerator.booleanValue());
- dec.setJavadoc(buildJSDoc(object));
- int parentType = nodes.peek().getNodeType();
- nodes.push(parentType == ASTNode.EXPORT_DECLARATION ||
- parentType == ASTNode.TYPE_DECLARATION ||
- parentType == ASTNode.JAVASCRIPT_UNIT ? dec : ast.newFunctionDeclarationStatement(dec));
-
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertUnaryOperation(final ScriptObjectMirror object) {
- final Boolean isPrefix = (Boolean) object.getMember("prefix"); //$NON-NLS-1$
- final String operator = (String) object.getMember("operator"); //$NON-NLS-1$
- if(isPrefix){
- PrefixExpression pe= ast.newPrefixExpression();
- pe.setOperator( PrefixExpression.Operator.toOperator(operator));
- nodes.push(pe);
- }else{
- PostfixExpression po = ast.newPostfixExpression();
- po.setOperator( PostfixExpression.Operator.toOperator(operator));
- nodes.push(po);
- }
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertBinaryExpression(final ScriptObjectMirror object) {
- final String operator = (String) object.getMember("operator"); //$NON-NLS-1$
- InfixExpression ie = ast.newInfixExpression();
- ie.setOperator(InfixExpression.Operator.toOperator(operator));
- nodes.push(ie);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertMemberExpression(final ScriptObjectMirror object) {
- Boolean computed = (Boolean)object.getMember("computed"); //$NON-NLS-1$
- nodes.push(computed ? ast.newArrayAccess() : ast.newFieldAccess());
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertConditionalExpression(final ScriptObjectMirror object) {
- ConditionalExpression ce = ast.newConditionalExpression();
- nodes.push(ce);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertCallExpression(final ScriptObjectMirror object) {
- ScriptObjectMirror callee = (ScriptObjectMirror) object.getMember("callee"); //$NON-NLS-1$
- String type = (String) callee.getMember("type"); //$NON-NLS-1$
- if("Super".equals(type)){ //$NON-NLS-1$
- SuperMethodInvocation smi = ast.newSuperMethodInvocation();
- nodes.push(smi);
- }else{
- FunctionInvocation fi = ast.newFunctionInvocation();
- nodes.push(fi);
- }
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertSequenceExpression(final ScriptObjectMirror object) {
- ListExpression le = ast.newListExpression();
- nodes.push(le);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertYieldExpression(final ScriptObjectMirror object) {
- Boolean isDelegate = (Boolean)object.getMember("delegate"); //$NON-NLS-1$
- YieldExpression ye = ast.newYieldExpression();
- ye.setDelegate(isDelegate);
- nodes.push(ye);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertNewExpression(final ScriptObjectMirror object) {
- ClassInstanceCreation ci = ast.newClassInstanceCreation();
- nodes.push(ci);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertArrowFunctionExpression(final ScriptObjectMirror object) {
- ArrowFunctionExpression af = ast.newArrowFunctionExpression();
- nodes.push(af);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertBlockStatement(final ScriptObjectMirror object) {
- Block b = ast.newBlock();
- nodes.push(b);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertEmptyStatement(final ScriptObjectMirror object) {
- EmptyStatement es = ast.newEmptyStatement();
- nodes.push(es);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertDebuggerStatememt(final ScriptObjectMirror object) {
- DebuggerStatement ds = ast.newDebuggerStatement();
- nodes.push(ds);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertWithStatement(final ScriptObjectMirror object) {
- WithStatement ws = ast.newWithStatement();
- nodes.push(ws);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertReturnStatement(final ScriptObjectMirror object) {
- ReturnStatement rs = ast.newReturnStatement();
- nodes.push(rs);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions converLabeledStatement(final ScriptObjectMirror object) {
- LabeledStatement ls = ast.newLabeledStatement();
- nodes.push(ls);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertBreakStatement(final ScriptObjectMirror object) {
- BreakStatement bs = ast.newBreakStatement();
- nodes.push(bs);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertContinueStatement(final ScriptObjectMirror object) {
- ContinueStatement cs = ast.newContinueStatement();
- nodes.push(cs);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertIfStatement(final ScriptObjectMirror object) {
- IfStatement is = ast.newIfStatement();
- nodes.push(is);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertSwitchStatement(final ScriptObjectMirror object) {
- SwitchStatement ss = ast.newSwitchStatement();
- this.processingSwitchStatements.push(ss);
- nodes.push(ss);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertSwitchCaseStatement(final ScriptObjectMirror object) {
- SwitchCase sc = ast.newSwitchCase();
- //set it to default:
- sc.setExpression(null);
- nodes.push(sc);
- if(processingSwitchStatements.empty() )
- throw new IllegalStateException("Case statement without a switch"); //$NON-NLS-1$
- //add the case to switch statement here so that the order is correct
- processingSwitchStatements.peek().statements().add(sc);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertThrowStatement(final ScriptObjectMirror object) {
- ThrowStatement ts = ast.newThrowStatement();
- nodes.push(ts);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertCatchClause(final ScriptObjectMirror object) {
- CatchClause cc = ast.newCatchClause();
- nodes.push(cc);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertTryStatement(final ScriptObjectMirror object) {
- TryStatement ts = ast.newTryStatement();
- nodes.push(ts);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertWhileStatement(final ScriptObjectMirror object) {
- WhileStatement ws = ast.newWhileStatement();
- nodes.push(ws);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertDoWhileStatement(final ScriptObjectMirror object) {
- DoStatement ds = ast.newDoStatement();
- nodes.push(ds);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertForStatement(final ScriptObjectMirror object) {
- ForStatement fs = ast.newForStatement();
- nodes.push(fs);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertForInStatement(final ScriptObjectMirror object) {
- ForInStatement fi = ast.newForInStatement();
- nodes.push(fi);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertForOfStatement(final ScriptObjectMirror object) {
- ForOfStatement fo = ast.newForOfStatement();
- nodes.push(fo);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertClassDeclaration(final ScriptObjectMirror object) {
- AbstractTypeDeclaration td = ast.newTypeDeclaration();
- TypeDeclarationStatement tds = ast.newTypeDeclarationStatement(td);
- nodes.push(tds);
- nodes.push(td);
- return VisitOptions.CONTINUE;
- }
-
-
- /**
- * @param object
- * @return
- */
- private VisitOptions convertClassExpression(ScriptObjectMirror object) {
- AbstractTypeDeclaration td = ast.newTypeDeclaration();
- TypeDeclarationExpression tde = ast.newTypeDeclarationExpression(td);
- nodes.push(tde);
- nodes.push(td);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertMethodDefinition(final ScriptObjectMirror object) {
- FunctionDeclaration fd = ast.newFunctionDeclaration();
- Boolean isStatic = (Boolean)object.getMember("static"); //$NON-NLS-1$
- if(isStatic){
- Modifier staticModifier = ast.newModifier(ModifierKeyword.STATIC_KEYWORD);
- fd.modifiers().add(staticModifier);
- }
- String kind = (String)object.getMember("kind"); //$NON-NLS-1$
- if(!"method".equals(kind)){ //$NON-NLS-1$
- if("constructor".equals(kind)){ //$NON-NLS-1$
- fd.setConstructor(true);
- }else if("get".equals(kind)){ //$NON-NLS-1$
- Modifier getModifier = ast.newModifier(ModifierKeyword.GET_KEYWORD);
- fd.modifiers().add(getModifier);
- }else if("set".equals(kind)){ //$NON-NLS-1$
- Modifier setModifier = ast.newModifier(ModifierKeyword.SET_KEYWORD);
- fd.modifiers().add(setModifier);
- }
- }
- nodes.push(fd);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertRestElement(final ScriptObjectMirror object) {
- RestElementName ren = ast.newRestElementName();
- nodes.push(ren);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertArrayPattern(final ScriptObjectMirror object) {
- ArrayName an = ast.newArrayName();
- nodes.push(an);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertObjectPattern(final ScriptObjectMirror object) {
- ObjectName on = ast.newObjectName();
- nodes.push(on);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertTemplateLiteral(final ScriptObjectMirror object, String key) {
- if("quasi".equals(key)){ //$NON-NLS-1$
- // reuse the tempalateLiteral created with parent TaggedTemplateLiteral so
- //that it eventually cascades to one TemplateLiteral
- nodes.push(nodes.peek());
- return VisitOptions.CONTINUE;
- }
- TemplateLiteral literal = ast.newTemplateLiteral();
- nodes.push(literal);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertTemplateElement(final ScriptObjectMirror object) {
- TemplateElement te = ast.newTemplateElement();
- ScriptObjectMirror val = (ScriptObjectMirror)object.getMember("value"); //$NON-NLS-1$
- String value = (String)val.getMember("raw"); //$NON-NLS-1$
- Boolean isTail = (Boolean) object.getMember("tail"); //$NON-NLS-1$
- te.setRawValue(value);
- te.setTail(isTail.booleanValue());
- nodes.push(te);
- return VisitOptions.SKIP;
- }
-
- private VisitOptions convertAssignmentPattern(final ScriptObjectMirror object) {
- AssignmentName an = ast.newAssignmentName();
- nodes.push(an);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertSpreadElement(final ScriptObjectMirror object) {
- SpreadElement spread = ast.newSpreadElement();
- nodes.push(spread);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertMetaProperty(final ScriptObjectMirror object) {
- MetaProperty mp = ast.newMetaProperty();
- String meta = (String) object.getMember("meta"); //$NON-NLS-1$
- String prop = (String) object.getMember("property"); //$NON-NLS-1$
- mp.setMeta(meta);
- mp.setPropertyName(prop);
- nodes.push(mp);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertImportDeclaration(final ScriptObjectMirror object) {
- ImportDeclaration importDecl = ast.newImportDeclaration();
- nodes.push(importDecl);
- return VisitOptions.CONTINUE;
- }
-
-
- private VisitOptions convertImportSpecifer(ScriptObjectMirror object, boolean isDefault, boolean isNamespace) {
- ModuleSpecifier specifier = ast.newModuleSpecifier();
- specifier.setDefault(isDefault);
- specifier.setNamespace(isNamespace);
- nodes.push(specifier);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertExportSpecifier(ScriptObjectMirror object) {
- ModuleSpecifier specifier = ast.newModuleSpecifier();
- nodes.push(specifier);
- return VisitOptions.CONTINUE;
- }
-
- private VisitOptions convertExportDeclaration(ScriptObjectMirror object, boolean isDefault, boolean isAll) {
- ExportDeclaration declaration = ast.newExportDeclaration();
- declaration.setDefault(isDefault);
- declaration.setAll(isAll);
- nodes.push(declaration);
- return VisitOptions.CONTINUE;
- }
-}
diff --git a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/ESTreeNodeTypes.java b/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/ESTreeNodeTypes.java
deleted file mode 100644
index 4b3d480..0000000
--- a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/ESTreeNodeTypes.java
+++ /dev/null
@@ -1,105 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015, 2016 Red Hat, Inc.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Red Hat Inc. - initial API and implementation and/or initial documentation
- *******************************************************************************/
-package org.eclipse.wst.jsdt.internal.esprima;
-
-/**
- * @author Gorkem Ercan
- * @since 2.0
- *
- */
-@SuppressWarnings("nls")
-public enum ESTreeNodeTypes {
-
- AssignmentExpression("AssignmentExpression", "left","right"),
- AssignmentPattern("AssignmentPattern", "left", "right"),
- ArrayExpression("ArrayExpression", "elements"),
- ArrayPattern("ArrayPattern", "elements"),
- ArrowFunctionExpression("ArrowFunctionExpression","params", "body"),
- AwaitExpression("AwaitExpression","argument"), // ES7.
- BlockStatement("BlockStatement", "body"),
- BinaryExpression("BinaryExpression","left", "right"),
- BreakStatement("BreakStatement", "label"),
- CallExpression("CallExpression", "callee", "arguments"),
- CatchClause("CatchClause", "param", "body"),
- ClassBody("ClassBody", "body"),
- ClassDeclaration("ClassDeclaration","id", "superClass", "body"),
- ClassExpression("ClassExpression", "id", "superClass", "body"),
-// ComprehensionBlock("ComprehensionBlock", "left", "right"), // ES7.
-// ComprehensionExpression("ComprehensionExpression", "blocks", "filter", "body"), // ES7.
- ConditionalExpression("ConditionalExpression", "test", "consequent", "alternate"),
- ContinueStatement("ContinueStatement", "label"),
- DebuggerStatement("DebuggerStatement"),
- DirectiveStatement("DirectiveStatement"),
- DoWhileStatement("DoWhileStatement", "body", "test"),
- EmptyStatement("EmptyStatement"),
- ExportAllDeclaration("ExportAllDeclaration", "source"),
- ExportDefaultDeclaration("ExportDefaultDeclaration", "declaration"),
- ExportNamedDeclaration("ExportNamedDeclaration", "declaration", "specifiers", "source"),
- ExportSpecifier("ExportSpecifier", "exported", "local"),
- ExpressionStatement("ExpressionStatement", "expression"),
- ForStatement("ForStatement", "init", "test", "update", "body"),
- ForInStatement("ForInStatement", "left", "right", "body"),
- ForOfStatement("ForOfStatement","left", "right", "body"),
- FunctionDeclaration("FunctionDeclaration", "id", "params", "body"),
- FunctionExpression("FunctionExpression", "id", "params", "body"),
- // GeneratorExpression("GeneratorExpression", "blocks", "filter", "body"), // ES7.
- Identifier("Identifier"),
- IfStatement("IfStatement", "test", "consequent", "alternate"),
- ImportDeclaration("ImportDeclaration", "specifiers", "source"),
- ImportDefaultSpecifier("ImportDefaultSpecifier", "local"),
- ImportNamespaceSpecifier("ImportNamespaceSpecifier", "local"),
- ImportSpecifier("ImportSpecifier", "imported", "local"),
- Literal("Literal"),
- LabeledStatement("LabeledStatement", "label", "body"),
- LogicalExpression("LogicalExpression", "left", "right"),
- MemberExpression("MemberExpression", "object", "property"),
- MetaProperty("MetaProperty", "meta", "property"),
- MethodDefinition("MethodDefinition", "key", "value"),
- ModuleSpecifier("ModuleSpecifier"),
- NewExpression("NewExpression", "callee", "arguments"),
- ObjectExpression("ObjectExpression", "properties"),
- ObjectPattern("ObjectPattern", "properties"),
- Program("Program", "body"),
- Property("Property", "key", "value"),
- RestElement("RestElement", "argument"),
- ReturnStatement("ReturnStatement", "argument"),
- SequenceExpression("SequenceExpression", "expressions"),
- SpreadElement("SpreadElement", "argument"),
- Super("Super"),
- SwitchStatement("SwitchStatement", "discriminant", "cases"),
- SwitchCase("SwitchCase", "test", "consequent"),
- TaggedTemplateExpression("TaggedTemplateExpression", "tag", "quasi"),
- TemplateElement("TemplateElement"),
- TemplateLiteral("TemplateLiteral", "quasis", "expressions"),
- ThisExpression("ThisExpression"),
- ThrowStatement("ThrowStatement", "argument"),
- TryStatement("TryStatement", "block", "handler", "finalizer"),
- UnaryExpression("UnaryExpression", "argument"),
- UpdateExpression("UpdateExpression", "argument"),
- VariableDeclaration("VariableDeclaration", "declarations"),
- VariableDeclarator("VariableDeclarator", "id", "init"),
- WhileStatement("WhileStatement", "test", "body"),
- WithStatement("WithStatement", "object", "body"),
- YieldExpression("YieldExpression", "argument");
-
- private final String typeString;
- private final String[] visitorKeys;
- ESTreeNodeTypes(String type, String... visitorKeys){
- this.typeString = type;
- this.visitorKeys = visitorKeys;
- }
- public String getTypeString() {
- return typeString;
- }
- public String[] getVisitorKeys() {
- return visitorKeys;
- }
-}
diff --git a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/EStreeVisitor.java b/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/EStreeVisitor.java
deleted file mode 100644
index 8d4636d..0000000
--- a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/EStreeVisitor.java
+++ /dev/null
@@ -1,126 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015, 2016 Red Hat, Inc.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Red Hat Inc. - initial API and implementation and/or initial documentation
- *******************************************************************************/
-package org.eclipse.wst.jsdt.internal.esprima;
-
-import java.util.Map;
-import java.util.Stack;
-
-import org.eclipse.core.runtime.Assert;
-
-import jdk.nashorn.api.scripting.ScriptObjectMirror;
-
-/**
- * @author Gorkem Ercan
- * @since 2.0
- */
-public class EStreeVisitor {
-
- public enum VisitOptions{
- /**
- * Traverse children
- */
- CONTINUE,
- /**
- * Skip children
- */
- SKIP,
- /**
- * Break traversal
- */
- BREAK }
-
- class WorkElement{
-
- ScriptObjectMirror node;
- boolean endVisit;
- String key;
-
- /**
- *
- */
- public WorkElement(ScriptObjectMirror node,String key, boolean endVisit) {
- this.node = node;
- this.key = key;
- this.endVisit = endVisit;
- }
- }
-
- final private Stack<WorkElement> workStack = new Stack<WorkElement>();
-
- public void traverse(ScriptObjectMirror root) {
- workStack.push(new WorkElement(root,null, false));
-
- while (!workStack.empty()) {
- WorkElement element = workStack.pop();
- VisitOptions vo = callVisit(element);
- if (vo == VisitOptions.BREAK) {
- return;
- }
- // No breaks push endVisit to stack
- if (!element.endVisit)
- workStack.push(new WorkElement(element.node, element.key, true));
-
- if (element.endVisit || vo == VisitOptions.SKIP) { // skip children
- continue;
- }
-
- // Find children and add them to worklist
- ESTreeNodeTypes nodeType = getNodeType(element);
- Assert.isNotNull(nodeType);
- String[] keys = nodeType.getVisitorKeys();
- for (int i = keys.length - 1; i > -1; i--) {
- Object o = element.node.getMember(keys[i]);
- if (o instanceof ScriptObjectMirror) {
- ScriptObjectMirror candidate = (ScriptObjectMirror) o;
- if (candidate.isArray()) {
- // Create WorkElements for Array in reverse order
- // to keep the order coming out of stack
- Object[] arrayElements = candidate.entrySet().toArray();
- for (int j = arrayElements.length-1; j > -1; j--) {
- Map.Entry<String, Object> entry = (java.util.Map.Entry<String, Object>) arrayElements[j];
- Object result = entry.getValue();
- if (result instanceof ScriptObjectMirror) {
- workStack.push(new WorkElement((ScriptObjectMirror) result, keys[i] ,false));
- }
- }
- }
- else {
- workStack.push(new WorkElement(candidate, keys[i], false));
- }
- }
- }
- }
- }
-
- private VisitOptions callVisit(WorkElement element){
- ESTreeNodeTypes nodeType = getNodeType(element);
- Assert.isNotNull(nodeType);
- if(element.endVisit){
- return endVisit(element.node, nodeType, element.key);
- }
- return visit(element.node, nodeType, element.key);
- }
-
- private ESTreeNodeTypes getNodeType(WorkElement element) {
- String type = (String)element.node.get("type");
- ESTreeNodeTypes nodeType = ESTreeNodeTypes.valueOf(type);
- return nodeType;
- }
-
- public VisitOptions visit(ScriptObjectMirror object, ESTreeNodeTypes nodeType, String key){
- return VisitOptions.CONTINUE;
- }
-
- public VisitOptions endVisit(ScriptObjectMirror object, ESTreeNodeTypes nodeType, String key){
- return VisitOptions.CONTINUE;
- }
-
-}
diff --git a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/EsprimaParser.java b/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/EsprimaParser.java
deleted file mode 100644
index 690a67a..0000000
--- a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/EsprimaParser.java
+++ /dev/null
@@ -1,323 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2016 Red Hat, Inc.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Red Hat Inc. - initial API and implementation and/or initial documentation
- *******************************************************************************/
-package org.eclipse.wst.jsdt.internal.esprima;
-
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.util.HashMap;
-
-import javax.script.Bindings;
-import javax.script.Compilable;
-import javax.script.CompiledScript;
-import javax.script.ScriptEngine;
-import javax.script.ScriptEngineManager;
-import javax.script.ScriptException;
-
-import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
-import org.eclipse.wst.jsdt.core.JavaScriptModelException;
-import org.eclipse.wst.jsdt.core.dom.AST;
-import org.eclipse.wst.jsdt.core.dom.ASTNode;
-import org.eclipse.wst.jsdt.core.dom.Comment;
-import org.eclipse.wst.jsdt.core.dom.JSdoc;
-import org.eclipse.wst.jsdt.core.dom.JavaScriptUnit;
-import org.eclipse.wst.jsdt.internal.compiler.problem.DefaultProblem;
-import org.eclipse.wst.jsdt.internal.compiler.problem.ProblemSeverities;
-import org.eclipse.wst.jsdt.internal.core.CompilationUnit;
-
-import jdk.nashorn.api.scripting.ScriptObjectMirror;
-import jdk.nashorn.internal.runtime.ECMAException;
-
-/**
- * A wrapper around EsprimaParser that uses nashorn to execute the parser.
- *
- * @author Gorkem Ercan
- * @since 2.0
- */
-class EsprimaParser {
- /**
- * "attachComment" option for parser
- */
- private static final String ESPRIMA_OPT_ATTACH_COMMENT = "attachComment"; //$NON-NLS-1$
-
- /**
- * "range" option for parser
- */
- private static final String ESPRIMA_OPT_RANGE = "range"; //$NON-NLS-1$
-
- /**
- * "tolerant" option for esprima
- */
- private static final String ESPRIMA_OPT_TOLERANT = "tolerant"; //$NON-NLS-1$
-
- /**
- * "sourceType" option for esprima
- */
- private static final String ESPRIMA_OPT_SOURCE_TYPE = "sourceType"; //$NON-NLS-1$
-
- private static ScriptEngine engine;
- private static CompiledScript compiledEsprima;
- private Bindings bindings;
- private String rawContent;
- private IJavaScriptUnit unit;
-
- private boolean tolerant = Boolean.TRUE;
- private boolean range = Boolean.TRUE;
- private boolean errorReporting = Boolean.TRUE;
- private boolean includeJsdocs = Boolean.FALSE;
- private String sourceType;
-
- /**
- *
- */
- private EsprimaParser() {
- this.bindings = engine.createBindings();
- try {
- compiledEsprima.eval(this.bindings);
- }
- catch (ScriptException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
-
- public static EsprimaParser newParser() {
- final ScriptEngineManager manager = new ScriptEngineManager();
- synchronized (EsprimaParser.class) {
- if (engine == null) {
- engine = manager.getEngineByName("nashorn"); //$NON-NLS-1$
- Compilable compilable = (Compilable) engine;
- try {
- InputStream in = EsprimaParser.class.getResourceAsStream("esprima.js"); //$NON-NLS-1$
- if (in == null)
- throw new RuntimeException("Failed to load esprima.js file"); //$NON-NLS-1$
- compiledEsprima = compilable.compile(new InputStreamReader(in));
- }
- catch (ScriptException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- }
- return new EsprimaParser();
- }
-
-
- public EsprimaParser setSource(String content){
- this.unit = null;
- this.rawContent = content;
- return this;
- }
-
- public EsprimaParser setSource(IJavaScriptUnit content){
- this.rawContent = null;
- this.unit = content;
- return this;
- }
-
- public JavaScriptUnit parse() {
- String content = rawContent;
- if(unit != null )
- try {
- content = unit.getSource();
- }
- catch (JavaScriptModelException e) {
- e.printStackTrace();
- }
- AST ast = AST.newAST(AST.JLS3);
- ast.setDefaultNodeFlag(ASTNode.ORIGINAL);
- JavaScriptUnit $ = ast.newJavaScriptUnit();
- try{
- ScriptObjectMirror jsObject = internalParse(content);
- translate(jsObject,$);
- buildLineEndTable($, content);
- if(errorReporting && tolerant)
- reportErrors(jsObject, $);
- if(includeJsdocs)
- buildComments(jsObject, $, ast);
- ast.setDefaultNodeFlag(0);
- }catch(ECMAException e)
- {
- if(!(e.getEcmaError() instanceof ScriptObjectMirror))
- e.printStackTrace();
- $.setProblems(new DefaultProblem[]{createProblem(((ScriptObjectMirror) e.getEcmaError()))});
- $.setFlags(ASTNode.MALFORMED);
- }
- return $;
- }
-
- /**
- * Sets the tolerant parsing option to false.
- * The default value for tolerant is true.
- *
- * @return parser
- */
- public EsprimaParser noTolerantParsing(){
- this.tolerant = false;
- return this;
- }
-
- /**
- * Sets the range based location option to false.
- * The default is true;
- *
- * @return parser
- */
- public EsprimaParser noRangeLocationInfo(){
- this.range = false;
- return this;
- }
-
- /**
- * Turns the error reporting off causing the return JavaScriptUnit
- * not to include the errors.
- *
- * @return
- */
- public EsprimaParser noErrorReporting(){
- this.errorReporting = false;
- return this;
- }
-
- public EsprimaParser includeComments(){
- this.includeJsdocs = true;
- return this;
- }
-
- public EsprimaParser setSourceType(String value) {
- this.sourceType = value;
- return this;
- }
-
- /**
- * @param jsObject
- * @return
- */
- private JavaScriptUnit translate(final ScriptObjectMirror jsObject, final JavaScriptUnit jsunit) {
- return (new DOMASTConverter(jsunit)).convert(jsObject);
- }
-
- private ScriptObjectMirror internalParse(String content) {
- final ScriptObjectMirror esprima = (ScriptObjectMirror) this.bindings.get("esprima"); //$NON-NLS-1$
- if (esprima == null)
- throw new RuntimeException("Esprima parser was not loaded correctly"); //$NON-NLS-1$
- return (ScriptObjectMirror) esprima.callMember("parse", content, getOptions()); //$NON-NLS-1$
- }
-
- private HashMap<String, Object> getOptions() {
- HashMap<String, Object> $ = new HashMap<String, Object>();
- $.put(ESPRIMA_OPT_RANGE, range);
- $.put(ESPRIMA_OPT_TOLERANT, tolerant);
- $.put(ESPRIMA_OPT_ATTACH_COMMENT, includeJsdocs);
- if(sourceType != null)
- $.put(ESPRIMA_OPT_SOURCE_TYPE, sourceType);
- return $;
- }
-
- /**
- * Add the errors reported on the "errors" array to
- * result.
- *
- * @param jsObject
- * @param result
- */
- private void reportErrors(final ScriptObjectMirror jsObject, final JavaScriptUnit result) {
- ScriptObjectMirror errors = (ScriptObjectMirror) jsObject.getMember("errors"); //$NON-NLS-1$
- if(errors == null || errors.size() < 1) return;
- DefaultProblem[] problems = new DefaultProblem[errors.size()];
- for(int i = 0; i < errors.size(); ++i)
- problems[i] = createProblem(((ScriptObjectMirror) errors.getSlot(i)));
- result.setFlags(ASTNode.MALFORMED);
- result.setProblems(problems);
- }
-
- private DefaultProblem createProblem(final ScriptObjectMirror error){
- String description = (String) error.getMember("description"); //$NON-NLS-1$
- Number index = (Number) error.getMember("index"); //$NON-NLS-1$
- Number line = (Number) error.getMember("lineNumber"); //$NON-NLS-1$
- Number column = (Number) error.getMember("column"); //$NON-NLS-1$
-
- char[] fileName = null;
- if(unit != null){
- CompilationUnit cu = (CompilationUnit)unit;
- fileName = cu.getFileName();
- }
-
- DefaultProblem result = new DefaultProblem(fileName,
- description,
- 0,
- null,
- ProblemSeverities.Error,
- index.intValue(),
- -1,
- line.intValue(),
- column.intValue());
- return result;
- }
-
- /**
- * @param jsObject
- * @param result
- */
- private void buildComments(ScriptObjectMirror jsObject, JavaScriptUnit result, AST t) {
- ScriptObjectMirror comments = (ScriptObjectMirror) jsObject.getMember("comments"); //$NON-NLS-1$
-
- int commentSize = comments.size();
- Comment[] resultComments = new Comment[commentSize];
- for(int i = 0; i< commentSize; ++i){
- ScriptObjectMirror obj = (ScriptObjectMirror) comments.getSlot(i);
- Comment newComment = createComment(obj, t);
- newComment.setAlternateRoot(result);
- resultComments[i] = newComment;
- }
- result.setCommentTable(resultComments);
- }
-
- /**
- * @param m
- * @return
- */
- static Comment createComment(ScriptObjectMirror m, AST t) {
- String type = (String) m.getMember("type"); //$NON-NLS-1$
- String value = (String) m.getMember("value"); //$NON-NLS-1$
- Comment $ = "Line".equals(type) ? t.newLineComment() : !value.startsWith("*") ? t.newBlockComment() : t.newJSdoc(); //$NON-NLS-1$//$NON-NLS-2$
- if($.isDocComment()) ((JSdoc)$).setComment("/*"+value+"*/"); //$NON-NLS-1$//$NON-NLS-2$
- ScriptObjectMirror r = (ScriptObjectMirror) m.getMember("range"); //$NON-NLS-1$
- Number x = (Number) r.getSlot(0);
- Number y = (Number) r.getSlot(1);
- $.setSourceRange(x.intValue(), y.intValue()-x.intValue());
- return $;
- }
-
- /**
- * Calculates line ends for the given source and sets this table for given
- * JavaScriptUnit.
- *
- * @param jsunit
- * unit to assign calculated LineEndTable
- * @param content
- * content to calculate line ends from
- */
- private void buildLineEndTable(JavaScriptUnit jsunit, String content) {
- int[] lineEnds = new int[250];
- int linePtr = 0;
- for (int i = 0, e = content.length(); i < e; ++i)
- if ( content.charAt(i) == '\n' || content.charAt(i) == '\r') {
- if(content.length() > i+1 && content.charAt(i) == '\r' && content.charAt(i+1) == '\n' ) ++i;//Skip to next character
- int length = lineEnds.length;
- if (linePtr >= length)
- System.arraycopy(lineEnds, 0, lineEnds = new int[length + 250], 0, length);
- lineEnds[linePtr++] = i;
- }
- System.arraycopy(lineEnds, 0, lineEnds = new int[linePtr], 0, linePtr);
- jsunit.setLineEndTable(lineEnds);
- }
-
-}
diff --git a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/esprima.js b/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/esprima.js
deleted file mode 100644
index 0d7229f..0000000
--- a/bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/internal/esprima/esprima.js
+++ /dev/null
@@ -1,5743 +0,0 @@
-/*
- Copyright (c) jQuery Foundation, Inc. and Contributors, All Rights Reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
- DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-(function (root, factory) {
- 'use strict';
-
- // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
- // Rhino, and plain browser loading.
-
- /* istanbul ignore next */
- if (typeof define === 'function' && define.amd) {
- define(['exports'], factory);
- } else if (typeof exports !== 'undefined') {
- factory(exports);
- } else {
- factory((root.esprima = {}));
- }
-}(this, function (exports) {
- 'use strict';
-
- var Token,
- TokenName,
- FnExprTokens,
- Syntax,
- PlaceHolders,
- Messages,
- Regex,
- source,
- strict,
- index,
- lineNumber,
- lineStart,
- hasLineTerminator,
- lastIndex,
- lastLineNumber,
- lastLineStart,
- startIndex,
- startLineNumber,
- startLineStart,
- scanning,
- length,
- lookahead,
- state,
- extra,
- isBindingElement,
- isAssignmentTarget,
- firstCoverInitializedNameError;
-
- Token = {
- BooleanLiteral: 1,
- EOF: 2,
- Identifier: 3,
- Keyword: 4,
- NullLiteral: 5,
- NumericLiteral: 6,
- Punctuator: 7,
- StringLiteral: 8,
- RegularExpression: 9,
- Template: 10
- };
-
- TokenName = {};
- TokenName[Token.BooleanLiteral] = 'Boolean';
- TokenName[Token.EOF] = '<end>';
- TokenName[Token.Identifier] = 'Identifier';
- TokenName[Token.Keyword] = 'Keyword';
- TokenName[Token.NullLiteral] = 'Null';
- TokenName[Token.NumericLiteral] = 'Numeric';
- TokenName[Token.Punctuator] = 'Punctuator';
- TokenName[Token.StringLiteral] = 'String';
- TokenName[Token.RegularExpression] = 'RegularExpression';
- TokenName[Token.Template] = 'Template';
-
- // A function following one of those tokens is an expression.
- FnExprTokens = ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
- 'return', 'case', 'delete', 'throw', 'void',
- // assignment operators
- '=', '+=', '-=', '*=', '/=', '%=', '<<=', '>>=', '>>>=',
- '&=', '|=', '^=', ',',
- // binary/unary operators
- '+', '-', '*', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
- '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
- '<=', '<', '>', '!=', '!=='];
-
- Syntax = {
- AssignmentExpression: 'AssignmentExpression',
- AssignmentPattern: 'AssignmentPattern',
- ArrayExpression: 'ArrayExpression',
- ArrayPattern: 'ArrayPattern',
- ArrowFunctionExpression: 'ArrowFunctionExpression',
- BlockStatement: 'BlockStatement',
- BinaryExpression: 'BinaryExpression',
- BreakStatement: 'BreakStatement',
- CallExpression: 'CallExpression',
- CatchClause: 'CatchClause',
- ClassBody: 'ClassBody',
- ClassDeclaration: 'ClassDeclaration',
- ClassExpression: 'ClassExpression',
- ConditionalExpression: 'ConditionalExpression',
- ContinueStatement: 'ContinueStatement',
- DoWhileStatement: 'DoWhileStatement',
- DebuggerStatement: 'DebuggerStatement',
- EmptyStatement: 'EmptyStatement',
- ExportAllDeclaration: 'ExportAllDeclaration',
- ExportDefaultDeclaration: 'ExportDefaultDeclaration',
- ExportNamedDeclaration: 'ExportNamedDeclaration',
- ExportSpecifier: 'ExportSpecifier',
- ExpressionStatement: 'ExpressionStatement',
- ForStatement: 'ForStatement',
- ForOfStatement: 'ForOfStatement',
- ForInStatement: 'ForInStatement',
- FunctionDeclaration: 'FunctionDeclaration',
- FunctionExpression: 'FunctionExpression',
- Identifier: 'Identifier',
- IfStatement: 'IfStatement',
- ImportDeclaration: 'ImportDeclaration',
- ImportDefaultSpecifier: 'ImportDefaultSpecifier',
- ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
- ImportSpecifier: 'ImportSpecifier',
- Literal: 'Literal',
- LabeledStatement: 'LabeledStatement',
- LogicalExpression: 'LogicalExpression',
- MemberExpression: 'MemberExpression',
- MetaProperty: 'MetaProperty',
- MethodDefinition: 'MethodDefinition',
- NewExpression: 'NewExpression',
- ObjectExpression: 'ObjectExpression',
- ObjectPattern: 'ObjectPattern',
- Program: 'Program',
- Property: 'Property',
- RestElement: 'RestElement',
- ReturnStatement: 'ReturnStatement',
- SequenceExpression: 'SequenceExpression',
- SpreadElement: 'SpreadElement',
- Super: 'Super',
- SwitchCase: 'SwitchCase',
- SwitchStatement: 'SwitchStatement',
- TaggedTemplateExpression: 'TaggedTemplateExpression',
- TemplateElement: 'TemplateElement',
- TemplateLiteral: 'TemplateLiteral',
- ThisExpression: 'ThisExpression',
- ThrowStatement: 'ThrowStatement',
- TryStatement: 'TryStatement',
- UnaryExpression: 'UnaryExpression',
- UpdateExpression: 'UpdateExpression',
- VariableDeclaration: 'VariableDeclaration',
- VariableDeclarator: 'VariableDeclarator',
- WhileStatement: 'WhileStatement',
- WithStatement: 'WithStatement',
- YieldExpression: 'YieldExpression'
- };
-
- PlaceHolders = {
- ArrowParameterPlaceHolder: 'ArrowParameterPlaceHolder'
- };
-
- // Error messages should be identical to V8.
- Messages = {
- UnexpectedToken: 'Unexpected token %0',
- UnexpectedNumber: 'Unexpected number',
- UnexpectedString: 'Unexpected string',
- UnexpectedIdentifier: 'Unexpected identifier',
- UnexpectedReserved: 'Unexpected reserved word',
- UnexpectedTemplate: 'Unexpected quasi %0',
- UnexpectedEOS: 'Unexpected end of input',
- NewlineAfterThrow: 'Illegal newline after throw',
- InvalidRegExp: 'Invalid regular expression',
- UnterminatedRegExp: 'Invalid regular expression: missing /',
- InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
- InvalidLHSInForIn: 'Invalid left-hand side in for-in',
- InvalidLHSInForLoop: 'Invalid left-hand side in for-loop',
- MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
- NoCatchOrFinally: 'Missing catch or finally after try',
- UnknownLabel: 'Undefined label \'%0\'',
- Redeclaration: '%0 \'%1\' has already been declared',
- IllegalContinue: 'Illegal continue statement',
- IllegalBreak: 'Illegal break statement',
- IllegalReturn: 'Illegal return statement',
- StrictModeWith: 'Strict mode code may not include a with statement',
- StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
- StrictVarName: 'Variable name may not be eval or arguments in strict mode',
- StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
- StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
- StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
- StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
- StrictDelete: 'Delete of an unqualified identifier in strict mode.',
- StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
- StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
- StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
- StrictReservedWord: 'Use of future reserved word in strict mode',
- TemplateOctalLiteral: 'Octal literals are not allowed in template strings.',
- ParameterAfterRestParameter: 'Rest parameter must be last formal parameter',
- DefaultRestParameter: 'Unexpected token =',
- ObjectPatternAsRestParameter: 'Unexpected token {',
- DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals',
- ConstructorSpecialMethod: 'Class constructor may not be an accessor',
- DuplicateConstructor: 'A class may only have one constructor',
- StaticPrototype: 'Classes may not have static property named prototype',
- MissingFromClause: 'Unexpected token',
- NoAsAfterImportNamespace: 'Unexpected token',
- InvalidModuleSpecifier: 'Unexpected token',
- IllegalImportDeclaration: 'Unexpected token',
- IllegalExportDeclaration: 'Unexpected token',
- DuplicateBinding: 'Duplicate binding %0'
- };
-
- // See also tools/generate-unicode-regex.js.
- Regex = {
- // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierStart:
- NonAsciiIdentifierStart: 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E2B\uDEB0-\uDEDE\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3D\uDF5D-\uDF61]|\uD805[\uDC80-\uDCAF\uDCC4\uDCC5\uDCC7\uDD80-\uDDAE\uDE00-\uDE2F\uDE44\uDE80-\uDEAA]|\uD806[\uDCA0-\uDCDF\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF98]|\uD809[\uDC00-\uDC6E]|[\uD80C\uD840-\uD868\uD86A-\uD86C][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDED0-\uDEED\uDF00-\uDF2F\uDF40-\uDF43\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50\uDF93-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB]|\uD83A[\uDC00-\uDCC4]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D]|\uD87E[\uDC00-\uDE1D]/,
-
- // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierPart:
- NonAsciiIdentifierPart: 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- };
-
- // Ensure the condition is true, otherwise throw an error.
- // This is only to have a better contract semantic, i.e. another safety net
- // to catch a logic error. The condition shall be fulfilled in normal case.
- // Do NOT use this to enforce a certain condition on any user input.
-
- function assert(condition, message) {
- /* istanbul ignore if */
- if (!condition) {
- throw new Error('ASSERT: ' + message);
- }
- }
-
- function isDecimalDigit(ch) {
- return (ch >= 0x30 && ch <= 0x39); // 0..9
- }
-
- function isHexDigit(ch) {
- return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
- }
-
- function isOctalDigit(ch) {
- return '01234567'.indexOf(ch) >= 0;
- }
-
- function octalToDecimal(ch) {
- // \0 is not octal escape sequence
- var octal = (ch !== '0'), code = '01234567'.indexOf(ch);
-
- if (index < length && isOctalDigit(source[index])) {
- octal = true;
- code = code * 8 + '01234567'.indexOf(source[index++]);
-
- // 3 digits are only allowed when string starts
- // with 0, 1, 2, 3
- if ('0123'.indexOf(ch) >= 0 &&
- index < length &&
- isOctalDigit(source[index])) {
- code = code * 8 + '01234567'.indexOf(source[index++]);
- }
- }
-
- return {
- code: code,
- octal: octal
- };
- }
-
- // ECMA-262 11.2 White Space
-
- function isWhiteSpace(ch) {
- return (ch === 0x20) || (ch === 0x09) || (ch === 0x0B) || (ch === 0x0C) || (ch === 0xA0) ||
- (ch >= 0x1680 && [0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(ch) >= 0);
- }
-
- // ECMA-262 11.3 Line Terminators
-
- function isLineTerminator(ch) {
- return (ch === 0x0A) || (ch === 0x0D) || (ch === 0x2028) || (ch === 0x2029);
- }
-
- // ECMA-262 11.6 Identifier Names and Identifiers
-
- function fromCodePoint(cp) {
- return (cp < 0x10000) ? String.fromCharCode(cp) :
- String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) +
- String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023));
- }
-
- function isIdentifierStart(ch) {
- return (ch === 0x24) || (ch === 0x5F) || // $ (dollar) and _ (underscore)
- (ch >= 0x41 && ch <= 0x5A) || // A..Z
- (ch >= 0x61 && ch <= 0x7A) || // a..z
- (ch === 0x5C) || // \ (backslash)
- ((ch >= 0x80) && Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch)));
- }
-
- function isIdentifierPart(ch) {
- return (ch === 0x24) || (ch === 0x5F) || // $ (dollar) and _ (underscore)
- (ch >= 0x41 && ch <= 0x5A) || // A..Z
- (ch >= 0x61 && ch <= 0x7A) || // a..z
- (ch >= 0x30 && ch <= 0x39) || // 0..9
- (ch === 0x5C) || // \ (backslash)
- ((ch >= 0x80) && Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch)));
- }
-
- // ECMA-262 11.6.2.2 Future Reserved Words
-
- function isFutureReservedWord(id) {
- switch (id) {
- case 'enum':
- case 'export':
- case 'import':
- case 'super':
- return true;
- default:
- return false;
- }
- }
-
- function isStrictModeReservedWord(id) {
- switch (id) {
- case 'implements':
- case 'interface':
- case 'package':
- case 'private':
- case 'protected':
- case 'public':
- case 'static':
- case 'yield':
- case 'let':
- return true;
- default:
- return false;
- }
- }
-
- function isRestrictedWord(id) {
- return id === 'eval' || id === 'arguments';
- }
-
- // ECMA-262 11.6.2.1 Keywords
-
- function isKeyword(id) {
- switch (id.length) {
- case 2:
- return (id === 'if') || (id === 'in') || (id === 'do');
- case 3:
- return (id === 'var') || (id === 'for') || (id === 'new') ||
- (id === 'try') || (id === 'let');
- case 4:
- return (id === 'this') || (id === 'else') || (id === 'case') ||
- (id === 'void') || (id === 'with') || (id === 'enum');
- case 5:
- return (id === 'while') || (id === 'break') || (id === 'catch') ||
- (id === 'throw') || (id === 'const') || (id === 'yield') ||
- (id === 'class') || (id === 'super');
- case 6:
- return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
- (id === 'switch') || (id === 'export') || (id === 'import');
- case 7:
- return (id === 'default') || (id === 'finally') || (id === 'extends');
- case 8:
- return (id === 'function') || (id === 'continue') || (id === 'debugger');
- case 10:
- return (id === 'instanceof');
- default:
- return false;
- }
- }
-
- // ECMA-262 11.4 Comments
-
- function addComment(type, value, start, end, loc) {
- var comment;
-
- assert(typeof start === 'number', 'Comment must have valid position');
-
- state.lastCommentStart = start;
-
- comment = {
- type: type,
- value: value
- };
- if (extra.range) {
- comment.range = [start, end];
- }
- if (extra.loc) {
- comment.loc = loc;
- }
- extra.comments.push(comment);
- if (extra.attachComment) {
- extra.leadingComments.push(comment);
- extra.trailingComments.push(comment);
- }
- if (extra.tokenize) {
- comment.type = comment.type + 'Comment';
- if (extra.delegate) {
- comment = extra.delegate(comment);
- }
- extra.tokens.push(comment);
- }
- }
-
- function skipSingleLineComment(offset) {
- var start, loc, ch, comment;
-
- start = index - offset;
- loc = {
- start: {
- line: lineNumber,
- column: index - lineStart - offset
- }
- };
-
- while (index < length) {
- ch = source.charCodeAt(index);
- ++index;
- if (isLineTerminator(ch)) {
- hasLineTerminator = true;
- if (extra.comments) {
- comment = source.slice(start + offset, index - 1);
- loc.end = {
- line: lineNumber,
- column: index - lineStart - 1
- };
- addComment('Line', comment, start, index - 1, loc);
- }
- if (ch === 13 && source.charCodeAt(index) === 10) {
- ++index;
- }
- ++lineNumber;
- lineStart = index;
- return;
- }
- }
-
- if (extra.comments) {
- comment = source.slice(start + offset, index);
- loc.end = {
- line: lineNumber,
- column: index - lineStart
- };
- addComment('Line', comment, start, index, loc);
- }
- }
-
- function skipMultiLineComment() {
- var start, loc, ch, comment;
-
- if (extra.comments) {
- start = index - 2;
- loc = {
- start: {
- line: lineNumber,
- column: index - lineStart - 2
- }
- };
- }
-
- while (index < length) {
- ch = source.charCodeAt(index);
- if (isLineTerminator(ch)) {
- if (ch === 0x0D && source.charCodeAt(index + 1) === 0x0A) {
- ++index;
- }
- hasLineTerminator = true;
- ++lineNumber;
- ++index;
- lineStart = index;
- } else if (ch === 0x2A) {
- // Block comment ends with '*/'.
- if (source.charCodeAt(index + 1) === 0x2F) {
- ++index;
- ++index;
- if (extra.comments) {
- comment = source.slice(start + 2, index - 2);
- loc.end = {
- line: lineNumber,
- column: index - lineStart
- };
- addComment('Block', comment, start, index, loc);
- }
- return;
- }
- ++index;
- } else {
- ++index;
- }
- }
-
- // Ran off the end of the file - the whole thing is a comment
- if (extra.comments) {
- loc.end = {
- line: lineNumber,
- column: index - lineStart
- };
- comment = source.slice(start + 2, index);
- addComment('Block', comment, start, index, loc);
- }
- tolerateUnexpectedToken();
- }
-
- function skipComment() {
- var ch, start;
- hasLineTerminator = false;
-
- start = (index === 0);
- while (index < length) {
- ch = source.charCodeAt(index);
-
- if (isWhiteSpace(ch)) {
- ++index;
- } else if (isLineTerminator(ch)) {
- hasLineTerminator = true;
- ++index;
- if (ch === 0x0D && source.charCodeAt(index) === 0x0A) {
- ++index;
- }
- ++lineNumber;
- lineStart = index;
- start = true;
- } else if (ch === 0x2F) { // U+002F is '/'
- ch = source.charCodeAt(index + 1);
- if (ch === 0x2F) {
- ++index;
- ++index;
- skipSingleLineComment(2);
- start = true;
- } else if (ch === 0x2A) { // U+002A is '*'
- ++index;
- ++index;
- skipMultiLineComment();
- } else {
- break;
- }
- } else if (start && ch === 0x2D) { // U+002D is '-'
- // U+003E is '>'
- if ((source.charCodeAt(index + 1) === 0x2D) && (source.charCodeAt(index + 2) === 0x3E)) {
- // '-->' is a single-line comment
- index += 3;
- skipSingleLineComment(3);
- } else {
- break;
- }
- } else if (ch === 0x3C) { // U+003C is '<'
- if (source.slice(index + 1, index + 4) === '!--') {
- ++index; // `<`
- ++index; // `!`
- ++index; // `-`
- ++index; // `-`
- skipSingleLineComment(4);
- } else {
- break;
- }
- } else {
- break;
- }
- }
- }
-
- function scanHexEscape(prefix) {
- var i, len, ch, code = 0;
-
- len = (prefix === 'u') ? 4 : 2;
- for (i = 0; i < len; ++i) {
- if (index < length && isHexDigit(source[index])) {
- ch = source[index++];
- code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
- } else {
- return '';
- }
- }
- return String.fromCharCode(code);
- }
-
- function scanUnicodeCodePointEscape() {
- var ch, code;
-
- ch = source[index];
- code = 0;
-
- // At least, one hex digit is required.
- if (ch === '}') {
- throwUnexpectedToken();
- }
-
- while (index < length) {
- ch = source[index++];
- if (!isHexDigit(ch)) {
- break;
- }
- code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
- }
-
- if (code > 0x10FFFF || ch !== '}') {
- throwUnexpectedToken();
- }
-
- return fromCodePoint(code);
- }
-
- function codePointAt(i) {
- var cp, first, second;
-
- cp = source.charCodeAt(i);
- if (cp >= 0xD800 && cp <= 0xDBFF) {
- second = source.charCodeAt(i + 1);
- if (second >= 0xDC00 && second <= 0xDFFF) {
- first = cp;
- cp = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
- }
- }
-
- return cp;
- }
-
- function getComplexIdentifier() {
- var cp, ch, id;
-
- cp = codePointAt(index);
- id = fromCodePoint(cp);
- index += id.length;
-
- // '\u' (U+005C, U+0075) denotes an escaped character.
- if (cp === 0x5C) {
- if (source.charCodeAt(index) !== 0x75) {
- throwUnexpectedToken();
- }
- ++index;
- if (source[index] === '{') {
- ++index;
- ch = scanUnicodeCodePointEscape();
- } else {
- ch = scanHexEscape('u');
- cp = ch.charCodeAt(0);
- if (!ch || ch === '\\' || !isIdentifierStart(cp)) {
- throwUnexpectedToken();
- }
- }
- id = ch;
- }
-
- while (index < length) {
- cp = codePointAt(index);
- if (!isIdentifierPart(cp)) {
- break;
- }
- ch = fromCodePoint(cp);
- id += ch;
- index += ch.length;
-
- // '\u' (U+005C, U+0075) denotes an escaped character.
- if (cp === 0x5C) {
- id = id.substr(0, id.length - 1);
- if (source.charCodeAt(index) !== 0x75) {
- throwUnexpectedToken();
- }
- ++index;
- if (source[index] === '{') {
- ++index;
- ch = scanUnicodeCodePointEscape();
- } else {
- ch = scanHexEscape('u');
- cp = ch.charCodeAt(0);
- if (!ch || ch === '\\' || !isIdentifierPart(cp)) {
- throwUnexpectedToken();
- }
- }
- id += ch;
- }
- }
-
- return id;
- }
-
- function getIdentifier() {
- var start, ch;
-
- start = index++;
- while (index < length) {
- ch = source.charCodeAt(index);
- if (ch === 0x5C) {
- // Blackslash (U+005C) marks Unicode escape sequence.
- index = start;
- return getComplexIdentifier();
- } else if (ch >= 0xD800 && ch < 0xDFFF) {
- // Need to handle surrogate pairs.
- index = start;
- return getComplexIdentifier();
- }
- if (isIdentifierPart(ch)) {
- ++index;
- } else {
- break;
- }
- }
-
- return source.slice(start, index);
- }
-
- function scanIdentifier() {
- var start, id, type;
-
- start = index;
-
- // Backslash (U+005C) starts an escaped character.
- id = (source.charCodeAt(index) === 0x5C) ? getComplexIdentifier() : getIdentifier();
-
- // There is no keyword or literal with only one character.
- // Thus, it must be an identifier.
- if (id.length === 1) {
- type = Token.Identifier;
- } else if (isKeyword(id)) {
- type = Token.Keyword;
- } else if (id === 'null') {
- type = Token.NullLiteral;
- } else if (id === 'true' || id === 'false') {
- type = Token.BooleanLiteral;
- } else {
- type = Token.Identifier;
- }
-
- return {
- type: type,
- value: id,
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: start,
- end: index
- };
- }
-
-
- // ECMA-262 11.7 Punctuators
-
- function scanPunctuator() {
- var token, str;
-
- token = {
- type: Token.Punctuator,
- value: '',
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: index,
- end: index
- };
-
- // Check for most common single-character punctuators.
- str = source[index];
- switch (str) {
-
- case '(':
- if (extra.tokenize) {
- extra.openParenToken = extra.tokenValues.length;
- }
- ++index;
- break;
-
- case '{':
- if (extra.tokenize) {
- extra.openCurlyToken = extra.tokenValues.length;
- }
- state.curlyStack.push('{');
- ++index;
- break;
-
- case '.':
- ++index;
- if (source[index] === '.' && source[index + 1] === '.') {
- // Spread operator: ...
- index += 2;
- str = '...';
- }
- break;
-
- case '}':
- ++index;
- state.curlyStack.pop();
- break;
- case ')':
- case ';':
- case ',':
- case '[':
- case ']':
- case ':':
- case '?':
- case '~':
- ++index;
- break;
-
- default:
- // 4-character punctuator.
- str = source.substr(index, 4);
- if (str === '>>>=') {
- index += 4;
- } else {
-
- // 3-character punctuators.
- str = str.substr(0, 3);
- if (str === '===' || str === '!==' || str === '>>>' ||
- str === '<<=' || str === '>>=') {
- index += 3;
- } else {
-
- // 2-character punctuators.
- str = str.substr(0, 2);
- if (str === '&&' || str === '||' || str === '==' || str === '!=' ||
- str === '+=' || str === '-=' || str === '*=' || str === '/=' ||
- str === '++' || str === '--' || str === '<<' || str === '>>' ||
- str === '&=' || str === '|=' || str === '^=' || str === '%=' ||
- str === '<=' || str === '>=' || str === '=>') {
- index += 2;
- } else {
-
- // 1-character punctuators.
- str = source[index];
- if ('<>=!+-*%&|^/'.indexOf(str) >= 0) {
- ++index;
- }
- }
- }
- }
- }
-
- if (index === token.start) {
- throwUnexpectedToken();
- }
-
- token.end = index;
- token.value = str;
- return token;
- }
-
- // ECMA-262 11.8.3 Numeric Literals
-
- function scanHexLiteral(start) {
- var number = '';
-
- while (index < length) {
- if (!isHexDigit(source[index])) {
- break;
- }
- number += source[index++];
- }
-
- if (number.length === 0) {
- throwUnexpectedToken();
- }
-
- if (isIdentifierStart(source.charCodeAt(index))) {
- throwUnexpectedToken();
- }
-
- return {
- type: Token.NumericLiteral,
- value: parseInt('0x' + number, 16),
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: start,
- end: index
- };
- }
-
- function scanBinaryLiteral(start) {
- var ch, number;
-
- number = '';
-
- while (index < length) {
- ch = source[index];
- if (ch !== '0' && ch !== '1') {
- break;
- }
- number += source[index++];
- }
-
- if (number.length === 0) {
- // only 0b or 0B
- throwUnexpectedToken();
- }
-
- if (index < length) {
- ch = source.charCodeAt(index);
- /* istanbul ignore else */
- if (isIdentifierStart(ch) || isDecimalDigit(ch)) {
- throwUnexpectedToken();
- }
- }
-
- return {
- type: Token.NumericLiteral,
- value: parseInt(number, 2),
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: start,
- end: index
- };
- }
-
- function scanOctalLiteral(prefix, start) {
- var number, octal;
-
- if (isOctalDigit(prefix)) {
- octal = true;
- number = '0' + source[index++];
- } else {
- octal = false;
- ++index;
- number = '';
- }
-
- while (index < length) {
- if (!isOctalDigit(source[index])) {
- break;
- }
- number += source[index++];
- }
-
- if (!octal && number.length === 0) {
- // only 0o or 0O
- throwUnexpectedToken();
- }
-
- if (isIdentifierStart(source.charCodeAt(index)) || isDecimalDigit(source.charCodeAt(index))) {
- throwUnexpectedToken();
- }
-
- return {
- type: Token.NumericLiteral,
- value: parseInt(number, 8),
- octal: octal,
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: start,
- end: index
- };
- }
-
- function isImplicitOctalLiteral() {
- var i, ch;
-
- // Implicit octal, unless there is a non-octal digit.
- // (Annex B.1.1 on Numeric Literals)
- for (i = index + 1; i < length; ++i) {
- ch = source[i];
- if (ch === '8' || ch === '9') {
- return false;
- }
- if (!isOctalDigit(ch)) {
- return true;
- }
- }
-
- return true;
- }
-
- function scanNumericLiteral() {
- var number, start, ch;
-
- ch = source[index];
- assert(isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'),
- 'Numeric literal must start with a decimal digit or a decimal point');
-
- start = index;
- number = '';
- if (ch !== '.') {
- number = source[index++];
- ch = source[index];
-
- // Hex number starts with '0x'.
- // Octal number starts with '0'.
- // Octal number in ES6 starts with '0o'.
- // Binary number in ES6 starts with '0b'.
- if (number === '0') {
- if (ch === 'x' || ch === 'X') {
- ++index;
- return scanHexLiteral(start);
- }
- if (ch === 'b' || ch === 'B') {
- ++index;
- return scanBinaryLiteral(start);
- }
- if (ch === 'o' || ch === 'O') {
- return scanOctalLiteral(ch, start);
- }
-
- if (isOctalDigit(ch)) {
- if (isImplicitOctalLiteral()) {
- return scanOctalLiteral(ch, start);
- }
- }
- }
-
- while (isDecimalDigit(source.charCodeAt(index))) {
- number += source[index++];
- }
- ch = source[index];
- }
-
- if (ch === '.') {
- number += source[index++];
- while (isDecimalDigit(source.charCodeAt(index))) {
- number += source[index++];
- }
- ch = source[index];
- }
-
- if (ch === 'e' || ch === 'E') {
- number += source[index++];
-
- ch = source[index];
- if (ch === '+' || ch === '-') {
- number += source[index++];
- }
- if (isDecimalDigit(source.charCodeAt(index))) {
- while (isDecimalDigit(source.charCodeAt(index))) {
- number += source[index++];
- }
- } else {
- throwUnexpectedToken();
- }
- }
-
- if (isIdentifierStart(source.charCodeAt(index))) {
- throwUnexpectedToken();
- }
-
- return {
- type: Token.NumericLiteral,
- value: parseFloat(number),
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: start,
- end: index
- };
- }
-
- // ECMA-262 11.8.4 String Literals
-
- function scanStringLiteral() {
- var str = '', quote, start, ch, unescaped, octToDec, octal = false;
-
- quote = source[index];
- assert((quote === '\'' || quote === '"'),
- 'String literal must starts with a quote');
-
- start = index;
- ++index;
-
- while (index < length) {
- ch = source[index++];
-
- if (ch === quote) {
- quote = '';
- break;
- } else if (ch === '\\') {
- ch = source[index++];
- if (!ch || !isLineTerminator(ch.charCodeAt(0))) {
- switch (ch) {
- case 'u':
- case 'x':
- if (source[index] === '{') {
- ++index;
- str += scanUnicodeCodePointEscape();
- } else {
- unescaped = scanHexEscape(ch);
- if (!unescaped) {
- throw throwUnexpectedToken();
- }
- str += unescaped;
- }
- break;
- case 'n':
- str += '\n';
- break;
- case 'r':
- str += '\r';
- break;
- case 't':
- str += '\t';
- break;
- case 'b':
- str += '\b';
- break;
- case 'f':
- str += '\f';
- break;
- case 'v':
- str += '\x0B';
- break;
- case '8':
- case '9':
- str += ch;
- tolerateUnexpectedToken();
- break;
-
- default:
- if (isOctalDigit(ch)) {
- octToDec = octalToDecimal(ch);
-
- octal = octToDec.octal || octal;
- str += String.fromCharCode(octToDec.code);
- } else {
- str += ch;
- }
- break;
- }
- } else {
- ++lineNumber;
- if (ch === '\r' && source[index] === '\n') {
- ++index;
- }
- lineStart = index;
- }
- } else if (isLineTerminator(ch.charCodeAt(0))) {
- break;
- } else {
- str += ch;
- }
- }
-
- if (quote !== '') {
- throwUnexpectedToken();
- }
-
- return {
- type: Token.StringLiteral,
- value: str,
- octal: octal,
- lineNumber: startLineNumber,
- lineStart: startLineStart,
- start: start,
- end: index
- };
- }
-
- // ECMA-262 11.8.6 Template Literal Lexical Components
-
- function scanTemplate() {
- var cooked = '', ch, start, rawOffset, terminated, head, tail, restore, unescaped;
-
- terminated = false;
- tail = false;
- start = index;
- head = (source[index] === '`');
- rawOffset = 2;
-
- ++index;
-
- while (index < length) {
- ch = source[index++];
- if (ch === '`') {
- rawOffset = 1;
- tail = true;
- terminated = true;
- break;
- } else if (ch === '$') {
- if (source[index] === '{') {
- state.curlyStack.push('${');
- ++index;
- terminated = true;
- break;
- }
- cooked += ch;
- } else if (ch === '\\') {
- ch = source[index++];
- if (!isLineTerminator(ch.charCodeAt(0))) {
- switch (ch) {
- case 'n':
- cooked += '\n';
- break;
- case 'r':
- cooked += '\r';
- break;
- case 't':
- cooked += '\t';
- break;
- case 'u':
- case 'x':
- if (source[index] === '{') {
- ++index;
- cooked += scanUnicodeCodePointEscape();
- } else {
- restore = index;
- unescaped = scanHexEscape(ch);
- if (unescaped) {
- cooked += unescaped;
- } else {
- index = restore;
- cooked += ch;
- }
- }
- break;
- case 'b':
- cooked += '\b';
- break;
- case 'f':
- cooked += '\f';
- break;
- case 'v':
- cooked += '\v';
- break;
-
- default:
- if (ch === '0') {
- if (isDecimalDigit(source.charCodeAt(index))) {
- // Illegal: \01 \02 and so on
- throwError(Messages.TemplateOctalLiteral);
- }
- cooked += '\0';
- } else if (isOctalDigit(ch)) {
- // Illegal: \1 \2
- throwError(Messages.TemplateOctalLiteral);
- } else {
- cooked += ch;
- }
- break;
- }
- } else {
- ++lineNumber;
- if (ch === '\r' && source[index] === '\n') {
- ++index;
- }
- lineStart = index;
- }
- } else if (isLineTerminator(ch.charCodeAt(0))) {
- ++lineNumber;
- if (ch === '\r' && source[index] === '\n') {
- ++index;
- }
- lineStart = index;
- cooked += '\n';
- } else {
- cooked += ch;
- }
- }
-
- if (!terminated) {
- throwUnexpectedToken();
- }
-
- if (!head) {
- state.curlyStack.pop();
- }
-
- return {
- type: Token.Template,
- value: {
- cooked: cooked,
- raw: source.slice(start + 1, index - rawOffset)
- },
- head: head,
- tail: tail,
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: start,
- end: index
- };
- }
-
- // ECMA-262 11.8.5 Regular Expression Literals
-
- function testRegExp(pattern, flags) {
- // The BMP character to use as a replacement for astral symbols when
- // translating an ES6 "u"-flagged pattern to an ES5-compatible
- // approximation.
- // Note: replacing with '\uFFFF' enables false positives in unlikely
- // scenarios. For example, `[\u{1044f}-\u{10440}]` is an invalid
- // pattern that would not be detected by this substitution.
- var astralSubstitute = '\uFFFF',
- tmp = pattern;
-
- if (flags.indexOf('u') >= 0) {
- tmp = tmp
- // Replace every Unicode escape sequence with the equivalent
- // BMP character or a constant ASCII code point in the case of
- // astral symbols. (See the above note on `astralSubstitute`
- // for more information.)
- .replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g, function ($0, $1, $2) {
- var codePoint = parseInt($1 || $2, 16);
- if (codePoint > 0x10FFFF) {
- throwUnexpectedToken(null, Messages.InvalidRegExp);
- }
- if (codePoint <= 0xFFFF) {
- return String.fromCharCode(codePoint);
- }
- return astralSubstitute;
- })
- // Replace each paired surrogate with a single ASCII symbol to
- // avoid throwing on regular expressions that are only valid in
- // combination with the "u" flag.
- .replace(
- /[\uD800-\uDBFF][\uDC00-\uDFFF]/g,
- astralSubstitute
- );
- }
-
- // First, detect invalid regular expressions.
- try {
- RegExp(tmp);
- } catch (e) {
- throwUnexpectedToken(null, Messages.InvalidRegExp);
- }
-
- // Return a regular expression object for this pattern-flag pair, or
- // `null` in case the current environment doesn't support the flags it
- // uses.
- try {
- return new RegExp(pattern, flags);
- } catch (exception) {
- return null;
- }
- }
-
- function scanRegExpBody() {
- var ch, str, classMarker, terminated, body;
-
- ch = source[index];
- assert(ch === '/', 'Regular expression literal must start with a slash');
- str = source[index++];
-
- classMarker = false;
- terminated = false;
- while (index < length) {
- ch = source[index++];
- str += ch;
- if (ch === '\\') {
- ch = source[index++];
- // ECMA-262 7.8.5
- if (isLineTerminator(ch.charCodeAt(0))) {
- throwUnexpectedToken(null, Messages.UnterminatedRegExp);
- }
- str += ch;
- } else if (isLineTerminator(ch.charCodeAt(0))) {
- throwUnexpectedToken(null, Messages.UnterminatedRegExp);
- } else if (classMarker) {
- if (ch === ']') {
- classMarker = false;
- }
- } else {
- if (ch === '/') {
- terminated = true;
- break;
- } else if (ch === '[') {
- classMarker = true;
- }
- }
- }
-
- if (!terminated) {
- throwUnexpectedToken(null, Messages.UnterminatedRegExp);
- }
-
- // Exclude leading and trailing slash.
- body = str.substr(1, str.length - 2);
- return {
- value: body,
- literal: str
- };
- }
-
- function scanRegExpFlags() {
- var ch, str, flags, restore;
-
- str = '';
- flags = '';
- while (index < length) {
- ch = source[index];
- if (!isIdentifierPart(ch.charCodeAt(0))) {
- break;
- }
-
- ++index;
- if (ch === '\\' && index < length) {
- ch = source[index];
- if (ch === 'u') {
- ++index;
- restore = index;
- ch = scanHexEscape('u');
- if (ch) {
- flags += ch;
- for (str += '\\u'; restore < index; ++restore) {
- str += source[restore];
- }
- } else {
- index = restore;
- flags += 'u';
- str += '\\u';
- }
- tolerateUnexpectedToken();
- } else {
- str += '\\';
- tolerateUnexpectedToken();
- }
- } else {
- flags += ch;
- str += ch;
- }
- }
-
- return {
- value: flags,
- literal: str
- };
- }
-
- function scanRegExp() {
- var start, body, flags, value;
- scanning = true;
-
- lookahead = null;
- skipComment();
- start = index;
-
- body = scanRegExpBody();
- flags = scanRegExpFlags();
- value = testRegExp(body.value, flags.value);
- scanning = false;
- if (extra.tokenize) {
- return {
- type: Token.RegularExpression,
- value: value,
- regex: {
- pattern: body.value,
- flags: flags.value
- },
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: start,
- end: index
- };
- }
-
- return {
- literal: body.literal + flags.literal,
- value: value,
- regex: {
- pattern: body.value,
- flags: flags.value
- },
- start: start,
- end: index
- };
- }
-
- function collectRegex() {
- var pos, loc, regex, token;
-
- skipComment();
-
- pos = index;
- loc = {
- start: {
- line: lineNumber,
- column: index - lineStart
- }
- };
-
- regex = scanRegExp();
-
- loc.end = {
- line: lineNumber,
- column: index - lineStart
- };
-
- /* istanbul ignore next */
- if (!extra.tokenize) {
- // Pop the previous token, which is likely '/' or '/='
- if (extra.tokens.length > 0) {
- token = extra.tokens[extra.tokens.length - 1];
- if (token.range[0] === pos && token.type === 'Punctuator') {
- if (token.value === '/' || token.value === '/=') {
- extra.tokens.pop();
- }
- }
- }
-
- extra.tokens.push({
- type: 'RegularExpression',
- value: regex.literal,
- regex: regex.regex,
- range: [pos, index],
- loc: loc
- });
- }
-
- return regex;
- }
-
- function isIdentifierName(token) {
- return token.type === Token.Identifier ||
- token.type === Token.Keyword ||
- token.type === Token.BooleanLiteral ||
- token.type === Token.NullLiteral;
- }
-
- // Using the following algorithm:
- // https://github.com/mozilla/sweet.js/wiki/design
-
- function advanceSlash() {
- var regex, previous, check;
-
- function testKeyword(value) {
- return value && (value.length > 1) && (value[0] >= 'a') && (value[0] <= 'z');
- }
-
- previous = extra.tokenValues[extra.tokens.length - 1];
- regex = (previous !== null);
-
- switch (previous) {
- case 'this':
- case ']':
- regex = false;
- break;
-
- case ')':
- check = extra.tokenValues[extra.openParenToken - 1];
- regex = (check === 'if' || check === 'while' || check === 'for' || check === 'with');
- break;
-
- case '}':
- // Dividing a function by anything makes little sense,
- // but we have to check for that.
- regex = false;
- if (testKeyword(extra.tokenValues[extra.openCurlyToken - 3])) {
- // Anonymous function, e.g. function(){} /42
- check = extra.tokenValues[extra.openCurlyToken - 4];
- regex = check ? (FnExprTokens.indexOf(check) < 0) : false;
- } else if (testKeyword(extra.tokenValues[extra.openCurlyToken - 4])) {
- // Named function, e.g. function f(){} /42/
- check = extra.tokenValues[extra.openCurlyToken - 5];
- regex = check ? (FnExprTokens.indexOf(check) < 0) : true;
- }
- }
-
- return regex ? collectRegex() : scanPunctuator();
- }
-
- function advance() {
- var cp, token;
-
- if (index >= length) {
- return {
- type: Token.EOF,
- lineNumber: lineNumber,
- lineStart: lineStart,
- start: index,
- end: index
- };
- }
-
- cp = source.charCodeAt(index);
-
- if (isIdentifierStart(cp)) {
- token = scanIdentifier();
- if (strict && isStrictModeReservedWord(token.value)) {
- token.type = Token.Keyword;
- }
- return token;
- }
-
- // Very common: ( and ) and ;
- if (cp === 0x28 || cp === 0x29 || cp === 0x3B) {
- return scanPunctuator();
- }
-
- // String literal starts with single quote (U+0027) or double quote (U+0022).
- if (cp === 0x27 || cp === 0x22) {
- return scanStringLiteral();
- }
-
- // Dot (.) U+002E can also start a floating-point number, hence the need
- // to check the next character.
- if (cp === 0x2E) {
- if (isDecimalDigit(source.charCodeAt(index + 1))) {
- return scanNumericLiteral();
- }
- return scanPunctuator();
- }
-
- if (isDecimalDigit(cp)) {
- return scanNumericLiteral();
- }
-
- // Slash (/) U+002F can also start a regex.
- if (extra.tokenize && cp === 0x2F) {
- return advanceSlash();
- }
-
- // Template literals start with ` (U+0060) for template head
- // or } (U+007D) for template middle or template tail.
- if (cp === 0x60 || (cp === 0x7D && state.curlyStack[state.curlyStack.length - 1] === '${')) {
- return scanTemplate();
- }
-
- // Possible identifier start in a surrogate pair.
- if (cp >= 0xD800 && cp < 0xDFFF) {
- cp = codePointAt(index);
- if (isIdentifierStart(cp)) {
- return scanIdentifier();
- }
- }
-
- return scanPunctuator();
- }
-
- function collectToken() {
- var loc, token, value, entry;
-
- loc = {
- start: {
- line: lineNumber,
- column: index - lineStart
- }
- };
-
- token = advance();
- loc.end = {
- line: lineNumber,
- column: index - lineStart
- };
-
- if (token.type !== Token.EOF) {
- value = source.slice(token.start, token.end);
- entry = {
- type: TokenName[token.type],
- value: value,
- range: [token.start, token.end],
- loc: loc
- };
- if (token.regex) {
- entry.regex = {
- pattern: token.regex.pattern,
- flags: token.regex.flags
- };
- }
- if (extra.tokenValues) {
- extra.tokenValues.push((entry.type === 'Punctuator' || entry.type === 'Keyword') ? entry.value : null);
- }
- if (extra.tokenize) {
- if (!extra.range) {
- delete entry.range;
- }
- if (!extra.loc) {
- delete entry.loc;
- }
- if (extra.delegate) {
- entry = extra.delegate(entry);
- }
- }
- extra.tokens.push(entry);
- }
-
- return token;
- }
-
- function lex() {
- var token;
- scanning = true;
-
- lastIndex = index;
- lastLineNumber = lineNumber;
- lastLineStart = lineStart;
-
- skipComment();
-
- token = lookahead;
-
- startIndex = index;
- startLineNumber = lineNumber;
- startLineStart = lineStart;
-
- lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance();
- scanning = false;
- return token;
- }
-
- function peek() {
- scanning = true;
-
- skipComment();
-
- lastIndex = index;
- lastLineNumber = lineNumber;
- lastLineStart = lineStart;
-
- startIndex = index;
- startLineNumber = lineNumber;
- startLineStart = lineStart;
-
- lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance();
- scanning = false;
- }
-
- function Position() {
- this.line = startLineNumber;
- this.column = startIndex - startLineStart;
- }
-
- function SourceLocation() {
- this.start = new Position();
- this.end = null;
- }
-
- function WrappingSourceLocation(startToken) {
- this.start = {
- line: startToken.lineNumber,
- column: startToken.start - startToken.lineStart
- };
- this.end = null;
- }
-
- function Node() {
- if (extra.range) {
- this.range = [startIndex, 0];
- }
- if (extra.loc) {
- this.loc = new SourceLocation();
- }
- }
-
- function WrappingNode(startToken) {
- if (extra.range) {
- this.range = [startToken.start, 0];
- }
- if (extra.loc) {
- this.loc = new WrappingSourceLocation(startToken);
- }
- }
-
- WrappingNode.prototype = Node.prototype = {
-
- processComment: function () {
- var lastChild,
- innerComments,
- leadingComments,
- trailingComments,
- bottomRight = extra.bottomRightStack,
- i,
- comment,
- last = bottomRight[bottomRight.length - 1];
-
- if (this.type === Syntax.Program) {
- if (this.body.length > 0) {
- return;
- }
- }
- /**
- * patch innnerComments for properties empty block
- * `function a() {/** comments **\/}`
- */
-
- if (this.type === Syntax.BlockStatement && this.body.length === 0) {
- innerComments = [];
- for (i = extra.leadingComments.length - 1; i >= 0; --i) {
- comment = extra.leadingComments[i];
- if (this.range[1] >= comment.range[1]) {
- innerComments.unshift(comment);
- extra.leadingComments.splice(i, 1);
- extra.trailingComments.splice(i, 1);
- }
- }
- if (innerComments.length) {
- this.innerComments = innerComments;
- //bottomRight.push(this);
- return;
- }
- }
-
- if (extra.trailingComments.length > 0) {
- trailingComments = [];
- for (i = extra.trailingComments.length - 1; i >= 0; --i) {
- comment = extra.trailingComments[i];
- if (comment.range[0] >= this.range[1]) {
- trailingComments.unshift(comment);
- extra.trailingComments.splice(i, 1);
- }
- }
- extra.trailingComments = [];
- } else {
- if (last && last.trailingComments && last.trailingComments[0].range[0] >= this.range[1]) {
- trailingComments = last.trailingComments;
- delete last.trailingComments;
- }
- }
-
- // Eating the stack.
- while (last && last.range[0] >= this.range[0]) {
- lastChild = bottomRight.pop();
- last = bottomRight[bottomRight.length - 1];
- }
-
- if (lastChild) {
- if (lastChild.leadingComments) {
- leadingComments = [];
- for (i = lastChild.leadingComments.length - 1; i >= 0; --i) {
- comment = lastChild.leadingComments[i];
- if (comment.range[1] <= this.range[0]) {
- leadingComments.unshift(comment);
- lastChild.leadingComments.splice(i, 1);
- }
- }
-
- if (!lastChild.leadingComments.length) {
- lastChild.leadingComments = undefined;
- }
- }
- } else if (extra.leadingComments.length > 0) {
- leadingComments = [];
- for (i = extra.leadingComments.length - 1; i >= 0; --i) {
- comment = extra.leadingComments[i];
- if (comment.range[1] <= this.range[0]) {
- leadingComments.unshift(comment);
- extra.leadingComments.splice(i, 1);
- }
- }
- }
-
-
- if (leadingComments && leadingComments.length > 0) {
- this.leadingComments = leadingComments;
- }
- if (trailingComments && trailingComments.length > 0) {
- this.trailingComments = trailingComments;
- }
-
- bottomRight.push(this);
- },
-
- finish: function () {
- if (extra.range) {
- this.range[1] = lastIndex;
- }
- if (extra.loc) {
- this.loc.end = {
- line: lastLineNumber,
- column: lastIndex - lastLineStart
- };
- if (extra.source) {
- this.loc.source = extra.source;
- }
- }
-
- if (extra.attachComment) {
- this.processComment();
- }
- },
-
- finishArrayExpression: function (elements) {
- this.type = Syntax.ArrayExpression;
- this.elements = elements;
- this.finish();
- return this;
- },
-
- finishArrayPattern: function (elements) {
- this.type = Syntax.ArrayPattern;
- this.elements = elements;
- this.finish();
- return this;
- },
-
- finishArrowFunctionExpression: function (params, defaults, body, expression) {
- this.type = Syntax.ArrowFunctionExpression;
- this.id = null;
- this.params = params;
- this.defaults = defaults;
- this.body = body;
- this.generator = false;
- this.expression = expression;
- this.finish();
- return this;
- },
-
- finishAssignmentExpression: function (operator, left, right) {
- this.type = Syntax.AssignmentExpression;
- this.operator = operator;
- this.left = left;
- this.right = right;
- this.finish();
- return this;
- },
-
- finishAssignmentPattern: function (left, right) {
- this.type = Syntax.AssignmentPattern;
- this.left = left;
- this.right = right;
- this.finish();
- return this;
- },
-
- finishBinaryExpression: function (operator, left, right) {
- this.type = (operator === '||' || operator === '&&') ? Syntax.LogicalExpression : Syntax.BinaryExpression;
- this.operator = operator;
- this.left = left;
- this.right = right;
- this.finish();
- return this;
- },
-
- finishBlockStatement: function (body) {
- this.type = Syntax.BlockStatement;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishBreakStatement: function (label) {
- this.type = Syntax.BreakStatement;
- this.label = label;
- this.finish();
- return this;
- },
-
- finishCallExpression: function (callee, args) {
- this.type = Syntax.CallExpression;
- this.callee = callee;
- this.arguments = args;
- this.finish();
- return this;
- },
-
- finishCatchClause: function (param, body) {
- this.type = Syntax.CatchClause;
- this.param = param;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishClassBody: function (body) {
- this.type = Syntax.ClassBody;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishClassDeclaration: function (id, superClass, body) {
- this.type = Syntax.ClassDeclaration;
- this.id = id;
- this.superClass = superClass;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishClassExpression: function (id, superClass, body) {
- this.type = Syntax.ClassExpression;
- this.id = id;
- this.superClass = superClass;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishConditionalExpression: function (test, consequent, alternate) {
- this.type = Syntax.ConditionalExpression;
- this.test = test;
- this.consequent = consequent;
- this.alternate = alternate;
- this.finish();
- return this;
- },
-
- finishContinueStatement: function (label) {
- this.type = Syntax.ContinueStatement;
- this.label = label;
- this.finish();
- return this;
- },
-
- finishDebuggerStatement: function () {
- this.type = Syntax.DebuggerStatement;
- this.finish();
- return this;
- },
-
- finishDoWhileStatement: function (body, test) {
- this.type = Syntax.DoWhileStatement;
- this.body = body;
- this.test = test;
- this.finish();
- return this;
- },
-
- finishEmptyStatement: function () {
- this.type = Syntax.EmptyStatement;
- this.finish();
- return this;
- },
-
- finishExpressionStatement: function (expression) {
- this.type = Syntax.ExpressionStatement;
- this.expression = expression;
- this.finish();
- return this;
- },
-
- finishForStatement: function (init, test, update, body) {
- this.type = Syntax.ForStatement;
- this.init = init;
- this.test = test;
- this.update = update;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishForOfStatement: function (left, right, body) {
- this.type = Syntax.ForOfStatement;
- this.left = left;
- this.right = right;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishForInStatement: function (left, right, body) {
- this.type = Syntax.ForInStatement;
- this.left = left;
- this.right = right;
- this.body = body;
- this.each = false;
- this.finish();
- return this;
- },
-
- finishFunctionDeclaration: function (id, params, defaults, body, generator) {
- this.type = Syntax.FunctionDeclaration;
- this.id = id;
- this.params = params;
- this.defaults = defaults;
- this.body = body;
- this.generator = generator;
- this.expression = false;
- this.finish();
- return this;
- },
-
- finishFunctionExpression: function (id, params, defaults, body, generator) {
- this.type = Syntax.FunctionExpression;
- this.id = id;
- this.params = params;
- this.defaults = defaults;
- this.body = body;
- this.generator = generator;
- this.expression = false;
- this.finish();
- return this;
- },
-
- finishIdentifier: function (name) {
- this.type = Syntax.Identifier;
- this.name = name;
- this.finish();
- return this;
- },
-
- finishIfStatement: function (test, consequent, alternate) {
- this.type = Syntax.IfStatement;
- this.test = test;
- this.consequent = consequent;
- this.alternate = alternate;
- this.finish();
- return this;
- },
-
- finishLabeledStatement: function (label, body) {
- this.type = Syntax.LabeledStatement;
- this.label = label;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishLiteral: function (token) {
- this.type = Syntax.Literal;
- this.value = token.value;
- this.raw = source.slice(token.start, token.end);
- if (token.regex) {
- this.regex = token.regex;
- }
- this.finish();
- return this;
- },
-
- finishMemberExpression: function (accessor, object, property) {
- this.type = Syntax.MemberExpression;
- this.computed = accessor === '[';
- this.object = object;
- this.property = property;
- this.finish();
- return this;
- },
-
- finishMetaProperty: function (meta, property) {
- this.type = Syntax.MetaProperty;
- this.meta = meta;
- this.property = property;
- this.finish();
- return this;
- },
-
- finishNewExpression: function (callee, args) {
- this.type = Syntax.NewExpression;
- this.callee = callee;
- this.arguments = args;
- this.finish();
- return this;
- },
-
- finishObjectExpression: function (properties) {
- this.type = Syntax.ObjectExpression;
- this.properties = properties;
- this.finish();
- return this;
- },
-
- finishObjectPattern: function (properties) {
- this.type = Syntax.ObjectPattern;
- this.properties = properties;
- this.finish();
- return this;
- },
-
- finishPostfixExpression: function (operator, argument) {
- this.type = Syntax.UpdateExpression;
- this.operator = operator;
- this.argument = argument;
- this.prefix = false;
- this.finish();
- return this;
- },
-
- finishProgram: function (body, sourceType) {
- this.type = Syntax.Program;
- this.body = body;
- this.sourceType = sourceType;
- this.finish();
- return this;
- },
-
- finishProperty: function (kind, key, computed, value, method, shorthand) {
- this.type = Syntax.Property;
- this.key = key;
- this.computed = computed;
- this.value = value;
- this.kind = kind;
- this.method = method;
- this.shorthand = shorthand;
- this.finish();
- return this;
- },
-
- finishRestElement: function (argument) {
- this.type = Syntax.RestElement;
- this.argument = argument;
- this.finish();
- return this;
- },
-
- finishReturnStatement: function (argument) {
- this.type = Syntax.ReturnStatement;
- this.argument = argument;
- this.finish();
- return this;
- },
-
- finishSequenceExpression: function (expressions) {
- this.type = Syntax.SequenceExpression;
- this.expressions = expressions;
- this.finish();
- return this;
- },
-
- finishSpreadElement: function (argument) {
- this.type = Syntax.SpreadElement;
- this.argument = argument;
- this.finish();
- return this;
- },
-
- finishSwitchCase: function (test, consequent) {
- this.type = Syntax.SwitchCase;
- this.test = test;
- this.consequent = consequent;
- this.finish();
- return this;
- },
-
- finishSuper: function () {
- this.type = Syntax.Super;
- this.finish();
- return this;
- },
-
- finishSwitchStatement: function (discriminant, cases) {
- this.type = Syntax.SwitchStatement;
- this.discriminant = discriminant;
- this.cases = cases;
- this.finish();
- return this;
- },
-
- finishTaggedTemplateExpression: function (tag, quasi) {
- this.type = Syntax.TaggedTemplateExpression;
- this.tag = tag;
- this.quasi = quasi;
- this.finish();
- return this;
- },
-
- finishTemplateElement: function (value, tail) {
- this.type = Syntax.TemplateElement;
- this.value = value;
- this.tail = tail;
- this.finish();
- return this;
- },
-
- finishTemplateLiteral: function (quasis, expressions) {
- this.type = Syntax.TemplateLiteral;
- this.quasis = quasis;
- this.expressions = expressions;
- this.finish();
- return this;
- },
-
- finishThisExpression: function () {
- this.type = Syntax.ThisExpression;
- this.finish();
- return this;
- },
-
- finishThrowStatement: function (argument) {
- this.type = Syntax.ThrowStatement;
- this.argument = argument;
- this.finish();
- return this;
- },
-
- finishTryStatement: function (block, handler, finalizer) {
- this.type = Syntax.TryStatement;
- this.block = block;
- this.guardedHandlers = [];
- this.handlers = handler ? [handler] : [];
- this.handler = handler;
- this.finalizer = finalizer;
- this.finish();
- return this;
- },
-
- finishUnaryExpression: function (operator, argument) {
- this.type = (operator === '++' || operator === '--') ? Syntax.UpdateExpression : Syntax.UnaryExpression;
- this.operator = operator;
- this.argument = argument;
- this.prefix = true;
- this.finish();
- return this;
- },
-
- finishVariableDeclaration: function (declarations) {
- this.type = Syntax.VariableDeclaration;
- this.declarations = declarations;
- this.kind = 'var';
- this.finish();
- return this;
- },
-
- finishLexicalDeclaration: function (declarations, kind) {
- this.type = Syntax.VariableDeclaration;
- this.declarations = declarations;
- this.kind = kind;
- this.finish();
- return this;
- },
-
- finishVariableDeclarator: function (id, init) {
- this.type = Syntax.VariableDeclarator;
- this.id = id;
- this.init = init;
- this.finish();
- return this;
- },
-
- finishWhileStatement: function (test, body) {
- this.type = Syntax.WhileStatement;
- this.test = test;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishWithStatement: function (object, body) {
- this.type = Syntax.WithStatement;
- this.object = object;
- this.body = body;
- this.finish();
- return this;
- },
-
- finishExportSpecifier: function (local, exported) {
- this.type = Syntax.ExportSpecifier;
- this.exported = exported || local;
- this.local = local;
- this.finish();
- return this;
- },
-
- finishImportDefaultSpecifier: function (local) {
- this.type = Syntax.ImportDefaultSpecifier;
- this.local = local;
- this.finish();
- return this;
- },
-
- finishImportNamespaceSpecifier: function (local) {
- this.type = Syntax.ImportNamespaceSpecifier;
- this.local = local;
- this.finish();
- return this;
- },
-
- finishExportNamedDeclaration: function (declaration, specifiers, src) {
- this.type = Syntax.ExportNamedDeclaration;
- this.declaration = declaration;
- this.specifiers = specifiers;
- this.source = src;
- this.finish();
- return this;
- },
-
- finishExportDefaultDeclaration: function (declaration) {
- this.type = Syntax.ExportDefaultDeclaration;
- this.declaration = declaration;
- this.finish();
- return this;
- },
-
- finishExportAllDeclaration: function (src) {
- this.type = Syntax.ExportAllDeclaration;
- this.source = src;
- this.finish();
- return this;
- },
-
- finishImportSpecifier: function (local, imported) {
- this.type = Syntax.ImportSpecifier;
- this.local = local || imported;
- this.imported = imported;
- this.finish();
- return this;
- },
-
- finishImportDeclaration: function (specifiers, src) {
- this.type = Syntax.ImportDeclaration;
- this.specifiers = specifiers;
- this.source = src;
- this.finish();
- return this;
- },
-
- finishYieldExpression: function (argument, delegate) {
- this.type = Syntax.YieldExpression;
- this.argument = argument;
- this.delegate = delegate;
- this.finish();
- return this;
- }
- };
-
-
- function recordError(error) {
- var e, existing;
-
- for (e = 0; e < extra.errors.length; e++) {
- existing = extra.errors[e];
- // Prevent duplicated error.
- /* istanbul ignore next */
- if (existing.index === error.index && existing.message === error.message) {
- return;
- }
- }
-
- extra.errors.push(error);
- }
-
- function constructError(msg, column) {
- var error = new Error(msg);
- try {
- throw error;
- } catch (base) {
- /* istanbul ignore else */
- if (Object.create && Object.defineProperty) {
- error = Object.create(base);
- Object.defineProperty(error, 'column', { value: column });
- }
- } finally {
- return error;
- }
- }
-
- function createError(line, pos, description) {
- var msg, column, error;
-
- msg = 'Line ' + line + ': ' + description;
- column = pos - (scanning ? lineStart : lastLineStart) + 1;
- error = constructError(msg, column);
- error.lineNumber = line;
- error.description = description;
- error.index = pos;
- return error;
- }
-
- // Throw an exception
-
- function throwError(messageFormat) {
- var args, msg;
-
- args = Array.prototype.slice.call(arguments, 1);
- msg = messageFormat.replace(/%(\d)/g,
- function (whole, idx) {
- assert(idx < args.length, 'Message reference must be in range');
- return args[idx];
- }
- );
-
- throw createError(lastLineNumber, lastIndex, msg);
- }
-
- function tolerateError(messageFormat) {
- var args, msg, error;
-
- args = Array.prototype.slice.call(arguments, 1);
- /* istanbul ignore next */
- msg = messageFormat.replace(/%(\d)/g,
- function (whole, idx) {
- assert(idx < args.length, 'Message reference must be in range');
- return args[idx];
- }
- );
-
- error = createError(lineNumber, lastIndex, msg);
- if (extra.errors) {
- recordError(error);
- } else {
- throw error;
- }
- }
-
- // Throw an exception because of the token.
-
- function unexpectedTokenError(token, message) {
- var value, msg = message || Messages.UnexpectedToken;
-
- if (token) {
- if (!message) {
- msg = (token.type === Token.EOF) ? Messages.UnexpectedEOS :
- (token.type === Token.Identifier) ? Messages.UnexpectedIdentifier :
- (token.type === Token.NumericLiteral) ? Messages.UnexpectedNumber :
- (token.type === Token.StringLiteral) ? Messages.UnexpectedString :
- (token.type === Token.Template) ? Messages.UnexpectedTemplate :
- Messages.UnexpectedToken;
-
- if (token.type === Token.Keyword) {
- if (isFutureReservedWord(token.value)) {
- msg = Messages.UnexpectedReserved;
- } else if (strict && isStrictModeReservedWord(token.value)) {
- msg = Messages.StrictReservedWord;
- }
- }
- }
-
- value = (token.type === Token.Template) ? token.value.raw : token.value;
- } else {
- value = 'ILLEGAL';
- }
-
- msg = msg.replace('%0', value);
-
- return (token && typeof token.lineNumber === 'number') ?
- createError(token.lineNumber, token.start, msg) :
- createError(scanning ? lineNumber : lastLineNumber, scanning ? index : lastIndex, msg);
- }
-
- function throwUnexpectedToken(token, message) {
- throw unexpectedTokenError(token, message);
- }
-
- function tolerateUnexpectedToken(token, message) {
- var error = unexpectedTokenError(token, message);
- if (extra.errors) {
- recordError(error);
- } else {
- throw error;
- }
- }
-
- // Expect the next token to match the specified punctuator.
- // If not, an exception will be thrown.
-
- function expect(value) {
- var token = lex();
- if (token.type !== Token.Punctuator || token.value !== value) {
- throwUnexpectedToken(token);
- }
- }
-
- /**
- * @name expectCommaSeparator
- * @description Quietly expect a comma when in tolerant mode, otherwise delegates
- * to <code>expect(value)</code>
- * @since 2.0
- */
- function expectCommaSeparator() {
- var token;
-
- if (extra.errors) {
- token = lookahead;
- if (token.type === Token.Punctuator && token.value === ',') {
- lex();
- } else if (token.type === Token.Punctuator && token.value === ';') {
- lex();
- tolerateUnexpectedToken(token);
- } else {
- tolerateUnexpectedToken(token, Messages.UnexpectedToken);
- }
- } else {
- expect(',');
- }
- }
-
- // Expect the next token to match the specified keyword.
- // If not, an exception will be thrown.
-
- function expectKeyword(keyword) {
- var token = lex();
- if (token.type !== Token.Keyword || token.value !== keyword) {
- throwUnexpectedToken(token);
- }
- }
-
- // Return true if the next token matches the specified punctuator.
-
- function match(value) {
- return lookahead.type === Token.Punctuator && lookahead.value === value;
- }
-
- // Return true if the next token matches the specified keyword
-
- function matchKeyword(keyword) {
- return lookahead.type === Token.Keyword && lookahead.value === keyword;
- }
-
- // Return true if the next token matches the specified contextual keyword
- // (where an identifier is sometimes a keyword depending on the context)
-
- function matchContextualKeyword(keyword) {
- return lookahead.type === Token.Identifier && lookahead.value === keyword;
- }
-
- // Return true if the next token is an assignment operator
-
- function matchAssign() {
- var op;
-
- if (lookahead.type !== Token.Punctuator) {
- return false;
- }
- op = lookahead.value;
- return op === '=' ||
- op === '*=' ||
- op === '/=' ||
- op === '%=' ||
- op === '+=' ||
- op === '-=' ||
- op === '<<=' ||
- op === '>>=' ||
- op === '>>>=' ||
- op === '&=' ||
- op === '^=' ||
- op === '|=';
- }
-
- function consumeSemicolon() {
- // Catch the very common case first: immediately a semicolon (U+003B).
- if (source.charCodeAt(startIndex) === 0x3B || match(';')) {
- lex();
- return;
- }
-
- if (hasLineTerminator) {
- return;
- }
-
- // FIXME(ikarienator): this is seemingly an issue in the previous location info convention.
- lastIndex = startIndex;
- lastLineNumber = startLineNumber;
- lastLineStart = startLineStart;
-
- if (lookahead.type !== Token.EOF && !match('}')) {
- throwUnexpectedToken(lookahead);
- }
- }
-
- // Cover grammar support.
- //
- // When an assignment expression position starts with an left parenthesis, the determination of the type
- // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead)
- // or the first comma. This situation also defers the determination of all the expressions nested in the pair.
- //
- // There are three productions that can be parsed in a parentheses pair that needs to be determined
- // after the outermost pair is closed. They are:
- //
- // 1. AssignmentExpression
- // 2. BindingElements
- // 3. AssignmentTargets
- //
- // In order to avoid exponential backtracking, we use two flags to denote if the production can be
- // binding element or assignment target.
- //
- // The three productions have the relationship:
- //
- // BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression
- //
- // with a single exception that CoverInitializedName when used directly in an Expression, generates
- // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the
- // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair.
- //
- // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not
- // effect the current flags. This means the production the parser parses is only used as an expression. Therefore
- // the CoverInitializedName check is conducted.
- //
- // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates
- // the flags outside of the parser. This means the production the parser parses is used as a part of a potential
- // pattern. The CoverInitializedName check is deferred.
- function isolateCoverGrammar(parser) {
- var oldIsBindingElement = isBindingElement,
- oldIsAssignmentTarget = isAssignmentTarget,
- oldFirstCoverInitializedNameError = firstCoverInitializedNameError,
- result;
- isBindingElement = true;
- isAssignmentTarget = true;
- firstCoverInitializedNameError = null;
- result = parser();
- if (firstCoverInitializedNameError !== null) {
- throwUnexpectedToken(firstCoverInitializedNameError);
- }
- isBindingElement = oldIsBindingElement;
- isAssignmentTarget = oldIsAssignmentTarget;
- firstCoverInitializedNameError = oldFirstCoverInitializedNameError;
- return result;
- }
-
- function inheritCoverGrammar(parser) {
- var oldIsBindingElement = isBindingElement,
- oldIsAssignmentTarget = isAssignmentTarget,
- oldFirstCoverInitializedNameError = firstCoverInitializedNameError,
- result;
- isBindingElement = true;
- isAssignmentTarget = true;
- firstCoverInitializedNameError = null;
- result = parser();
- isBindingElement = isBindingElement && oldIsBindingElement;
- isAssignmentTarget = isAssignmentTarget && oldIsAssignmentTarget;
- firstCoverInitializedNameError = oldFirstCoverInitializedNameError || firstCoverInitializedNameError;
- return result;
- }
-
- // ECMA-262 13.3.3 Destructuring Binding Patterns
-
- function parseArrayPattern(params, kind) {
- var node = new Node(), elements = [], rest, restNode;
- expect('[');
-
- while (!match(']')) {
- if (match(',')) {
- lex();
- elements.push(null);
- } else {
- if (match('...')) {
- restNode = new Node();
- lex();
- params.push(lookahead);
- rest = parseVariableIdentifier(kind);
- elements.push(restNode.finishRestElement(rest));
- break;
- } else {
- elements.push(parsePatternWithDefault(params, kind));
- }
- if (!match(']')) {
- expect(',');
- }
- }
-
- }
-
- expect(']');
-
- return node.finishArrayPattern(elements);
- }
-
- function parsePropertyPattern(params, kind) {
- var node = new Node(), key, keyToken, computed = match('['), init;
- if (lookahead.type === Token.Identifier) {
- keyToken = lookahead;
- key = parseVariableIdentifier();
- if (match('=')) {
- params.push(keyToken);
- lex();
- init = parseAssignmentExpression();
-
- return node.finishProperty(
- 'init', key, false,
- new WrappingNode(keyToken).finishAssignmentPattern(key, init), false, false);
- } else if (!match(':')) {
- params.push(keyToken);
- return node.finishProperty('init', key, false, key, false, true);
- }
- } else {
- key = parseObjectPropertyKey();
- }
- expect(':');
- init = parsePatternWithDefault(params, kind);
- return node.finishProperty('init', key, computed, init, false, false);
- }
-
- function parseObjectPattern(params, kind) {
- var node = new Node(), properties = [];
-
- expect('{');
-
- while (!match('}')) {
- properties.push(parsePropertyPattern(params, kind));
- if (!match('}')) {
- expect(',');
- }
- }
-
- lex();
-
- return node.finishObjectPattern(properties);
- }
-
- function parsePattern(params, kind) {
- if (match('[')) {
- return parseArrayPattern(params, kind);
- } else if (match('{')) {
- return parseObjectPattern(params, kind);
- } else if (matchKeyword('let')) {
- if (kind === 'const' || kind === 'let') {
- tolerateUnexpectedToken(lookahead, Messages.UnexpectedToken);
- }
- }
-
- params.push(lookahead);
- return parseVariableIdentifier(kind);
- }
-
- function parsePatternWithDefault(params, kind) {
- var startToken = lookahead, pattern, previousAllowYield, right;
- pattern = parsePattern(params, kind);
- if (match('=')) {
- lex();
- previousAllowYield = state.allowYield;
- state.allowYield = true;
- right = isolateCoverGrammar(parseAssignmentExpression);
- state.allowYield = previousAllowYield;
- pattern = new WrappingNode(startToken).finishAssignmentPattern(pattern, right);
- }
- return pattern;
- }
-
- // ECMA-262 12.2.5 Array Initializer
-
- function parseArrayInitializer() {
- var elements = [], node = new Node(), restSpread;
-
- expect('[');
-
- while (!match(']')) {
- if (match(',')) {
- lex();
- elements.push(null);
- } else if (match('...')) {
- restSpread = new Node();
- lex();
- restSpread.finishSpreadElement(inheritCoverGrammar(parseAssignmentExpression));
-
- if (!match(']')) {
- isAssignmentTarget = isBindingElement = false;
- expect(',');
- }
- elements.push(restSpread);
- } else {
- elements.push(inheritCoverGrammar(parseAssignmentExpression));
-
- if (!match(']')) {
- expect(',');
- }
- }
- }
-
- lex();
-
- return node.finishArrayExpression(elements);
- }
-
- // ECMA-262 12.2.6 Object Initializer
-
- function parsePropertyFunction(node, paramInfo, isGenerator) {
- var previousStrict, body;
-
- isAssignmentTarget = isBindingElement = false;
-
- previousStrict = strict;
- body = isolateCoverGrammar(parseFunctionSourceElements);
-
- if (strict && paramInfo.firstRestricted) {
- tolerateUnexpectedToken(paramInfo.firstRestricted, paramInfo.message);
- }
- if (strict && paramInfo.stricted) {
- tolerateUnexpectedToken(paramInfo.stricted, paramInfo.message);
- }
-
- strict = previousStrict;
- return node.finishFunctionExpression(null, paramInfo.params, paramInfo.defaults, body, isGenerator);
- }
-
- function parsePropertyMethodFunction() {
- var params, method, node = new Node(),
- previousAllowYield = state.allowYield;
-
- state.allowYield = false;
- params = parseParams();
- state.allowYield = previousAllowYield;
-
- state.allowYield = false;
- method = parsePropertyFunction(node, params, false);
- state.allowYield = previousAllowYield;
-
- return method;
- }
-
- function parseObjectPropertyKey() {
- var token, node = new Node(), expr;
-
- token = lex();
-
- // Note: This function is called only from parseObjectProperty(), where
- // EOF and Punctuator tokens are already filtered out.
-
- switch (token.type) {
- case Token.StringLiteral:
- case Token.NumericLiteral:
- if (strict && token.octal) {
- tolerateUnexpectedToken(token, Messages.StrictOctalLiteral);
- }
- return node.finishLiteral(token);
- case Token.Identifier:
- case Token.BooleanLiteral:
- case Token.NullLiteral:
- case Token.Keyword:
- return node.finishIdentifier(token.value);
- case Token.Punctuator:
- if (token.value === '[') {
- expr = isolateCoverGrammar(parseAssignmentExpression);
- expect(']');
- return expr;
- }
- break;
- }
- throwUnexpectedToken(token);
- }
-
- function lookaheadPropertyName() {
- switch (lookahead.type) {
- case Token.Identifier:
- case Token.StringLiteral:
- case Token.BooleanLiteral:
- case Token.NullLiteral:
- case Token.NumericLiteral:
- case Token.Keyword:
- return true;
- case Token.Punctuator:
- return lookahead.value === '[';
- }
- return false;
- }
-
- // This function is to try to parse a MethodDefinition as defined in 14.3. But in the case of object literals,
- // it might be called at a position where there is in fact a short hand identifier pattern or a data property.
- // This can only be determined after we consumed up to the left parentheses.
- //
- // In order to avoid back tracking, it returns `null` if the position is not a MethodDefinition and the caller
- // is responsible to visit other options.
- function tryParseMethodDefinition(token, key, computed, node) {
- var value, options, methodNode, params,
- previousAllowYield = state.allowYield;
-
- if (token.type === Token.Identifier) {
- // check for `get` and `set`;
-
- if (token.value === 'get' && lookaheadPropertyName()) {
- computed = match('[');
- key = parseObjectPropertyKey();
- methodNode = new Node();
- expect('(');
- expect(')');
-
- state.allowYield = false;
- value = parsePropertyFunction(methodNode, {
- params: [],
- defaults: [],
- stricted: null,
- firstRestricted: null,
- message: null
- }, false);
- state.allowYield = previousAllowYield;
-
- return node.finishProperty('get', key, computed, value, false, false);
- } else if (token.value === 'set' && lookaheadPropertyName()) {
- computed = match('[');
- key = parseObjectPropertyKey();
- methodNode = new Node();
- expect('(');
-
- options = {
- params: [],
- defaultCount: 0,
- defaults: [],
- firstRestricted: null,
- paramSet: {}
- };
- if (match(')')) {
- tolerateUnexpectedToken(lookahead);
- } else {
- state.allowYield = false;
- parseParam(options);
- state.allowYield = previousAllowYield;
- if (options.defaultCount === 0) {
- options.defaults = [];
- }
- }
- expect(')');
-
- state.allowYield = false;
- value = parsePropertyFunction(methodNode, options, false);
- state.allowYield = previousAllowYield;
-
- return node.finishProperty('set', key, computed, value, false, false);
- }
- } else if (token.type === Token.Punctuator && token.value === '*' && lookaheadPropertyName()) {
- computed = match('[');
- key = parseObjectPropertyKey();
- methodNode = new Node();
-
- state.allowYield = true;
- params = parseParams();
- state.allowYield = previousAllowYield;
-
- state.allowYield = false;
- value = parsePropertyFunction(methodNode, params, true);
- state.allowYield = previousAllowYield;
-
- return node.finishProperty('init', key, computed, value, true, false);
- }
-
- if (key && match('(')) {
- value = parsePropertyMethodFunction();
- return node.finishProperty('init', key, computed, value, true, false);
- }
-
- // Not a MethodDefinition.
- return null;
- }
-
- function parseObjectProperty(hasProto) {
- var token = lookahead, node = new Node(), computed, key, maybeMethod, proto, value;
-
- computed = match('[');
- if (match('*')) {
- lex();
- } else {
- key = parseObjectPropertyKey();
- }
- maybeMethod = tryParseMethodDefinition(token, key, computed, node);
- if (maybeMethod) {
- return maybeMethod;
- }
-
- if (!key) {
- throwUnexpectedToken(lookahead);
- }
-
- // Check for duplicated __proto__
- if (!computed) {
- proto = (key.type === Syntax.Identifier && key.name === '__proto__') ||
- (key.type === Syntax.Literal && key.value === '__proto__');
- if (hasProto.value && proto) {
- tolerateError(Messages.DuplicateProtoProperty);
- }
- hasProto.value |= proto;
- }
-
- if (match(':')) {
- lex();
- value = inheritCoverGrammar(parseAssignmentExpression);
- return node.finishProperty('init', key, computed, value, false, false);
- }
-
- if (token.type === Token.Identifier) {
- if (match('=')) {
- firstCoverInitializedNameError = lookahead;
- lex();
- value = isolateCoverGrammar(parseAssignmentExpression);
- return node.finishProperty('init', key, computed,
- new WrappingNode(token).finishAssignmentPattern(key, value), false, true);
- }
- return node.finishProperty('init', key, computed, key, false, true);
- }
-
- throwUnexpectedToken(lookahead);
- }
-
- function parseObjectInitializer() {
- var properties = [], hasProto = {value: false}, node = new Node();
-
- expect('{');
-
- while (!match('}')) {
- properties.push(parseObjectProperty(hasProto));
-
- if (!match('}')) {
- expectCommaSeparator();
- }
- }
-
- expect('}');
-
- return node.finishObjectExpression(properties);
- }
-
- function reinterpretExpressionAsPattern(expr) {
- var i;
- switch (expr.type) {
- case Syntax.Identifier:
- case Syntax.MemberExpression:
- case Syntax.RestElement:
- case Syntax.AssignmentPattern:
- break;
- case Syntax.SpreadElement:
- expr.type = Syntax.RestElement;
- reinterpretExpressionAsPattern(expr.argument);
- break;
- case Syntax.ArrayExpression:
- expr.type = Syntax.ArrayPattern;
- for (i = 0; i < expr.elements.length; i++) {
- if (expr.elements[i] !== null) {
- reinterpretExpressionAsPattern(expr.elements[i]);
- }
- }
- break;
- case Syntax.ObjectExpression:
- expr.type = Syntax.ObjectPattern;
- for (i = 0; i < expr.properties.length; i++) {
- reinterpretExpressionAsPattern(expr.properties[i].value);
- }
- break;
- case Syntax.AssignmentExpression:
- expr.type = Syntax.AssignmentPattern;
- reinterpretExpressionAsPattern(expr.left);
- break;
- default:
- // Allow other node type for tolerant parsing.
- break;
- }
- }
-
- // ECMA-262 12.2.9 Template Literals
-
- function parseTemplateElement(option) {
- var node, token;
-
- if (lookahead.type !== Token.Template || (option.head && !lookahead.head)) {
- throwUnexpectedToken();
- }
-
- node = new Node();
- token = lex();
-
- return node.finishTemplateElement({ raw: token.value.raw, cooked: token.value.cooked }, token.tail);
- }
-
- function parseTemplateLiteral() {
- var quasi, quasis, expressions, node = new Node();
-
- quasi = parseTemplateElement({ head: true });
- quasis = [quasi];
- expressions = [];
-
- while (!quasi.tail) {
- expressions.push(parseExpression());
- quasi = parseTemplateElement({ head: false });
- quasis.push(quasi);
- }
-
- return node.finishTemplateLiteral(quasis, expressions);
- }
-
- // ECMA-262 12.2.10 The Grouping Operator
-
- function parseGroupExpression() {
- var expr, expressions, startToken, i, params = [];
-
- expect('(');
-
- if (match(')')) {
- lex();
- if (!match('=>')) {
- expect('=>');
- }
- return {
- type: PlaceHolders.ArrowParameterPlaceHolder,
- params: [],
- rawParams: []
- };
- }
-
- startToken = lookahead;
- if (match('...')) {
- expr = parseRestElement(params);
- expect(')');
- if (!match('=>')) {
- expect('=>');
- }
- return {
- type: PlaceHolders.ArrowParameterPlaceHolder,
- params: [expr]
- };
- }
-
- isBindingElement = true;
- expr = inheritCoverGrammar(parseAssignmentExpression);
-
- if (match(',')) {
- isAssignmentTarget = false;
- expressions = [expr];
-
- while (startIndex < length) {
- if (!match(',')) {
- break;
- }
- lex();
-
- if (match('...')) {
- if (!isBindingElement) {
- throwUnexpectedToken(lookahead);
- }
- expressions.push(parseRestElement(params));
- expect(')');
- if (!match('=>')) {
- expect('=>');
- }
- isBindingElement = false;
- for (i = 0; i < expressions.length; i++) {
- reinterpretExpressionAsPattern(expressions[i]);
- }
- return {
- type: PlaceHolders.ArrowParameterPlaceHolder,
- params: expressions
- };
- }
-
- expressions.push(inheritCoverGrammar(parseAssignmentExpression));
- }
-
- expr = new WrappingNode(startToken).finishSequenceExpression(expressions);
- }
-
-
- expect(')');
-
- if (match('=>')) {
- if (expr.type === Syntax.Identifier && expr.name === 'yield') {
- return {
- type: PlaceHolders.ArrowParameterPlaceHolder,
- params: [expr]
- };
- }
-
- if (!isBindingElement) {
- throwUnexpectedToken(lookahead);
- }
-
- if (expr.type === Syntax.SequenceExpression) {
- for (i = 0; i < expr.expressions.length; i++) {
- reinterpretExpressionAsPattern(expr.expressions[i]);
- }
- } else {
- reinterpretExpressionAsPattern(expr);
- }
-
- expr = {
- type: PlaceHolders.ArrowParameterPlaceHolder,
- params: expr.type === Syntax.SequenceExpression ? expr.expressions : [expr]
- };
- }
- isBindingElement = false;
- return expr;
- }
-
-
- // ECMA-262 12.2 Primary Expressions
-
- function parsePrimaryExpression() {
- var type, token, expr, node;
-
- if (match('(')) {
- isBindingElement = false;
- return inheritCoverGrammar(parseGroupExpression);
- }
-
- if (match('[')) {
- return inheritCoverGrammar(parseArrayInitializer);
- }
-
- if (match('{')) {
- return inheritCoverGrammar(parseObjectInitializer);
- }
-
- type = lookahead.type;
- node = new Node();
-
- if (type === Token.Identifier) {
- if (state.sourceType === 'module' && lookahead.value === 'await') {
- tolerateUnexpectedToken(lookahead);
- }
- expr = node.finishIdentifier(lex().value);
- } else if (type === Token.StringLiteral || type === Token.NumericLiteral) {
- isAssignmentTarget = isBindingElement = false;
- if (strict && lookahead.octal) {
- tolerateUnexpectedToken(lookahead, Messages.StrictOctalLiteral);
- }
- expr = node.finishLiteral(lex());
- } else if (type === Token.Keyword) {
- if (!strict && state.allowYield && matchKeyword('yield')) {
- return parseNonComputedProperty();
- }
- isAssignmentTarget = isBindingElement = false;
- if (matchKeyword('function')) {
- return parseFunctionExpression();
- }
- if (matchKeyword('this')) {
- lex();
- return node.finishThisExpression();
- }
- if (matchKeyword('class')) {
- return parseClassExpression();
- }
- if (!strict && matchKeyword('let')) {
- return node.finishIdentifier(lex().value);
- }
- throwUnexpectedToken(lex());
- } else if (type === Token.BooleanLiteral) {
- isAssignmentTarget = isBindingElement = false;
- token = lex();
- token.value = (token.value === 'true');
- expr = node.finishLiteral(token);
- } else if (type === Token.NullLiteral) {
- isAssignmentTarget = isBindingElement = false;
- token = lex();
- token.value = null;
- expr = node.finishLiteral(token);
- } else if (match('/') || match('/=')) {
- isAssignmentTarget = isBindingElement = false;
- index = startIndex;
-
- if (typeof extra.tokens !== 'undefined') {
- token = collectRegex();
- } else {
- token = scanRegExp();
- }
- lex();
- expr = node.finishLiteral(token);
- } else if (type === Token.Template) {
- expr = parseTemplateLiteral();
- } else {
- throwUnexpectedToken(lex());
- }
-
- return expr;
- }
-
- // ECMA-262 12.3 Left-Hand-Side Expressions
-
- function parseArguments() {
- var args = [], expr;
-
- expect('(');
-
- if (!match(')')) {
- while (startIndex < length) {
- if (match('...')) {
- expr = new Node();
- lex();
- expr.finishSpreadElement(isolateCoverGrammar(parseAssignmentExpression));
- } else {
- expr = isolateCoverGrammar(parseAssignmentExpression);
- }
- args.push(expr);
- if (match(')')) {
- break;
- }
- expectCommaSeparator();
- }
- }
-
- expect(')');
-
- return args;
- }
-
- function parseNonComputedProperty() {
- var token, node = new Node();
-
- token = lex();
-
- if (!isIdentifierName(token)) {
- throwUnexpectedToken(token);
- }
-
- return node.finishIdentifier(token.value);
- }
-
- function parseNonComputedMember() {
- expect('.');
-
- return parseNonComputedProperty();
- }
-
- function parseComputedMember() {
- var expr;
-
- expect('[');
-
- expr = isolateCoverGrammar(parseExpression);
-
- expect(']');
-
- return expr;
- }
-
- // ECMA-262 12.3.3 The new Operator
-
- function parseNewExpression() {
- var callee, args, node = new Node();
-
- expectKeyword('new');
-
- if (match('.')) {
- lex();
- if (lookahead.type === Token.Identifier && lookahead.value === 'target') {
- if (state.inFunctionBody) {
- lex();
- return node.finishMetaProperty('new', 'target');
- }
- }
- throwUnexpectedToken(lookahead);
- }
-
- callee = isolateCoverGrammar(parseLeftHandSideExpression);
- args = match('(') ? parseArguments() : [];
-
- isAssignmentTarget = isBindingElement = false;
-
- return node.finishNewExpression(callee, args);
- }
-
- // ECMA-262 12.3.4 Function Calls
-
- function parseLeftHandSideExpressionAllowCall() {
- var quasi, expr, args, property, startToken, previousAllowIn = state.allowIn;
-
- startToken = lookahead;
- state.allowIn = true;
-
- if (matchKeyword('super') && state.inFunctionBody) {
- expr = new Node();
- lex();
- expr = expr.finishSuper();
- if (!match('(') && !match('.') && !match('[')) {
- throwUnexpectedToken(lookahead);
- }
- } else {
- expr = inheritCoverGrammar(matchKeyword('new') ? parseNewExpression : parsePrimaryExpression);
- }
-
- for (;;) {
- if (match('.')) {
- isBindingElement = false;
- isAssignmentTarget = true;
- property = parseNonComputedMember();
- expr = new WrappingNode(startToken).finishMemberExpression('.', expr, property);
- } else if (match('(')) {
- isBindingElement = false;
- isAssignmentTarget = false;
- args = parseArguments();
- expr = new WrappingNode(startToken).finishCallExpression(expr, args);
- } else if (match('[')) {
- isBindingElement = false;
- isAssignmentTarget = true;
- property = parseComputedMember();
- expr = new WrappingNode(startToken).finishMemberExpression('[', expr, property);
- } else if (lookahead.type === Token.Template && lookahead.head) {
- quasi = parseTemplateLiteral();
- expr = new WrappingNode(startToken).finishTaggedTemplateExpression(expr, quasi);
- } else {
- break;
- }
- }
- state.allowIn = previousAllowIn;
-
- return expr;
- }
-
- // ECMA-262 12.3 Left-Hand-Side Expressions
-
- function parseLeftHandSideExpression() {
- var quasi, expr, property, startToken;
- assert(state.allowIn, 'callee of new expression always allow in keyword.');
-
- startToken = lookahead;
-
- if (matchKeyword('super') && state.inFunctionBody) {
- expr = new Node();
- lex();
- expr = expr.finishSuper();
- if (!match('[') && !match('.')) {
- throwUnexpectedToken(lookahead);
- }
- } else {
- expr = inheritCoverGrammar(matchKeyword('new') ? parseNewExpression : parsePrimaryExpression);
- }
-
- for (;;) {
- if (match('[')) {
- isBindingElement = false;
- isAssignmentTarget = true;
- property = parseComputedMember();
- expr = new WrappingNode(startToken).finishMemberExpression('[', expr, property);
- } else if (match('.')) {
- isBindingElement = false;
- isAssignmentTarget = true;
- property = parseNonComputedMember();
- expr = new WrappingNode(startToken).finishMemberExpression('.', expr, property);
- } else if (lookahead.type === Token.Template && lookahead.head) {
- quasi = parseTemplateLiteral();
- expr = new WrappingNode(startToken).finishTaggedTemplateExpression(expr, quasi);
- } else {
- break;
- }
- }
- return expr;
- }
-
- // ECMA-262 12.4 Postfix Expressions
-
- function parsePostfixExpression() {
- var expr, token, startToken = lookahead;
-
- expr = inheritCoverGrammar(parseLeftHandSideExpressionAllowCall);
-
- if (!hasLineTerminator && lookahead.type === Token.Punctuator) {
- if (match('++') || match('--')) {
- // ECMA-262 11.3.1, 11.3.2
- if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
- tolerateError(Messages.StrictLHSPostfix);
- }
-
- if (!isAssignmentTarget) {
- tolerateError(Messages.InvalidLHSInAssignment);
- }
-
- isAssignmentTarget = isBindingElement = false;
-
- token = lex();
- expr = new WrappingNode(startToken).finishPostfixExpression(token.value, expr);
- }
- }
-
- return expr;
- }
-
- // ECMA-262 12.5 Unary Operators
-
- function parseUnaryExpression() {
- var token, expr, startToken;
-
- if (lookahead.type !== Token.Punctuator && lookahead.type !== Token.Keyword) {
- expr = parsePostfixExpression();
- } else if (match('++') || match('--')) {
- startToken = lookahead;
- token = lex();
- expr = inheritCoverGrammar(parseUnaryExpression);
- // ECMA-262 11.4.4, 11.4.5
- if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
- tolerateError(Messages.StrictLHSPrefix);
- }
-
- if (!isAssignmentTarget) {
- tolerateError(Messages.InvalidLHSInAssignment);
- }
- expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr);
- isAssignmentTarget = isBindingElement = false;
- } else if (match('+') || match('-') || match('~') || match('!')) {
- startToken = lookahead;
- token = lex();
- expr = inheritCoverGrammar(parseUnaryExpression);
- expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr);
- isAssignmentTarget = isBindingElement = false;
- } else if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
- startToken = lookahead;
- token = lex();
- expr = inheritCoverGrammar(parseUnaryExpression);
- expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr);
- if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) {
- tolerateError(Messages.StrictDelete);
- }
- isAssignmentTarget = isBindingElement = false;
- } else {
- expr = parsePostfixExpression();
- }
-
- return expr;
- }
-
- function binaryPrecedence(token, allowIn) {
- var prec = 0;
-
- if (token.type !== Token.Punctuator && token.type !== Token.Keyword) {
- return 0;
- }
-
- switch (token.value) {
- case '||':
- prec = 1;
- break;
-
- case '&&':
- prec = 2;
- break;
-
- case '|':
- prec = 3;
- break;
-
- case '^':
- prec = 4;
- break;
-
- case '&':
- prec = 5;
- break;
-
- case '==':
- case '!=':
- case '===':
- case '!==':
- prec = 6;
- break;
-
- case '<':
- case '>':
- case '<=':
- case '>=':
- case 'instanceof':
- prec = 7;
- break;
-
- case 'in':
- prec = allowIn ? 7 : 0;
- break;
-
- case '<<':
- case '>>':
- case '>>>':
- prec = 8;
- break;
-
- case '+':
- case '-':
- prec = 9;
- break;
-
- case '*':
- case '/':
- case '%':
- prec = 11;
- break;
-
- default:
- break;
- }
-
- return prec;
- }
-
- // ECMA-262 12.6 Multiplicative Operators
- // ECMA-262 12.7 Additive Operators
- // ECMA-262 12.8 Bitwise Shift Operators
- // ECMA-262 12.9 Relational Operators
- // ECMA-262 12.10 Equality Operators
- // ECMA-262 12.11 Binary Bitwise Operators
- // ECMA-262 12.12 Binary Logical Operators
-
- function parseBinaryExpression() {
- var marker, markers, expr, token, prec, stack, right, operator, left, i;
-
- marker = lookahead;
- left = inheritCoverGrammar(parseUnaryExpression);
-
- token = lookahead;
- prec = binaryPrecedence(token, state.allowIn);
- if (prec === 0) {
- return left;
- }
- isAssignmentTarget = isBindingElement = false;
- token.prec = prec;
- lex();
-
- markers = [marker, lookahead];
- right = isolateCoverGrammar(parseUnaryExpression);
-
- stack = [left, token, right];
-
- while ((prec = binaryPrecedence(lookahead, state.allowIn)) > 0) {
-
- // Reduce: make a binary expression from the three topmost entries.
- while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {
- right = stack.pop();
- operator = stack.pop().value;
- left = stack.pop();
- markers.pop();
- expr = new WrappingNode(markers[markers.length - 1]).finishBinaryExpression(operator, left, right);
- stack.push(expr);
- }
-
- // Shift.
- token = lex();
- token.prec = prec;
- stack.push(token);
- markers.push(lookahead);
- expr = isolateCoverGrammar(parseUnaryExpression);
- stack.push(expr);
- }
-
- // Final reduce to clean-up the stack.
- i = stack.length - 1;
- expr = stack[i];
- markers.pop();
- while (i > 1) {
- expr = new WrappingNode(markers.pop()).finishBinaryExpression(stack[i - 1].value, stack[i - 2], expr);
- i -= 2;
- }
-
- return expr;
- }
-
-
- // ECMA-262 12.13 Conditional Operator
-
- function parseConditionalExpression() {
- var expr, previousAllowIn, consequent, alternate, startToken;
-
- startToken = lookahead;
-
- expr = inheritCoverGrammar(parseBinaryExpression);
- if (match('?')) {
- lex();
- previousAllowIn = state.allowIn;
- state.allowIn = true;
- consequent = isolateCoverGrammar(parseAssignmentExpression);
- state.allowIn = previousAllowIn;
- expect(':');
- alternate = isolateCoverGrammar(parseAssignmentExpression);
-
- expr = new WrappingNode(startToken).finishConditionalExpression(expr, consequent, alternate);
- isAssignmentTarget = isBindingElement = false;
- }
-
- return expr;
- }
-
- // ECMA-262 14.2 Arrow Function Definitions
-
- function parseConciseBody() {
- if (match('{')) {
- return parseFunctionSourceElements();
- }
- return isolateCoverGrammar(parseAssignmentExpression);
- }
-
- function checkPatternParam(options, param) {
- var i;
- switch (param.type) {
- case Syntax.Identifier:
- validateParam(options, param, param.name);
- break;
- case Syntax.RestElement:
- checkPatternParam(options, param.argument);
- break;
- case Syntax.AssignmentPattern:
- checkPatternParam(options, param.left);
- break;
- case Syntax.ArrayPattern:
- for (i = 0; i < param.elements.length; i++) {
- if (param.elements[i] !== null) {
- checkPatternParam(options, param.elements[i]);
- }
- }
- break;
- case Syntax.YieldExpression:
- break;
- default:
- assert(param.type === Syntax.ObjectPattern, 'Invalid type');
- for (i = 0; i < param.properties.length; i++) {
- checkPatternParam(options, param.properties[i].value);
- }
- break;
- }
- }
- function reinterpretAsCoverFormalsList(expr) {
- var i, len, param, params, defaults, defaultCount, options, token;
-
- defaults = [];
- defaultCount = 0;
- params = [expr];
-
- switch (expr.type) {
- case Syntax.Identifier:
- break;
- case PlaceHolders.ArrowParameterPlaceHolder:
- params = expr.params;
- break;
- default:
- return null;
- }
-
- options = {
- paramSet: {}
- };
-
- for (i = 0, len = params.length; i < len; i += 1) {
- param = params[i];
- switch (param.type) {
- case Syntax.AssignmentPattern:
- params[i] = param.left;
- if (param.right.type === Syntax.YieldExpression) {
- if (param.right.argument) {
- throwUnexpectedToken(lookahead);
- }
- param.right.type = Syntax.Identifier;
- param.right.name = 'yield';
- delete param.right.argument;
- delete param.right.delegate;
- }
- defaults.push(param.right);
- ++defaultCount;
- checkPatternParam(options, param.left);
- break;
- default:
- checkPatternParam(options, param);
- params[i] = param;
- defaults.push(null);
- break;
- }
- }
-
- if (strict || !state.allowYield) {
- for (i = 0, len = params.length; i < len; i += 1) {
- param = params[i];
- if (param.type === Syntax.YieldExpression) {
- throwUnexpectedToken(lookahead);
- }
- }
- }
-
- if (options.message === Messages.StrictParamDupe) {
- token = strict ? options.stricted : options.firstRestricted;
- throwUnexpectedToken(token, options.message);
- }
-
- if (defaultCount === 0) {
- defaults = [];
- }
-
- return {
- params: params,
- defaults: defaults,
- stricted: options.stricted,
- firstRestricted: options.firstRestricted,
- message: options.message
- };
- }
-
- function parseArrowFunctionExpression(options, node) {
- var previousStrict, previousAllowYield, body;
-
- if (hasLineTerminator) {
- tolerateUnexpectedToken(lookahead);
- }
- expect('=>');
-
- previousStrict = strict;
- previousAllowYield = state.allowYield;
- state.allowYield = true;
-
- body = parseConciseBody();
-
- if (strict && options.firstRestricted) {
- throwUnexpectedToken(options.firstRestricted, options.message);
- }
- if (strict && options.stricted) {
- tolerateUnexpectedToken(options.stricted, options.message);
- }
-
- strict = previousStrict;
- state.allowYield = previousAllowYield;
-
- return node.finishArrowFunctionExpression(options.params, options.defaults, body, body.type !== Syntax.BlockStatement);
- }
-
- // ECMA-262 14.4 Yield expression
-
- function parseYieldExpression() {
- var argument, expr, delegate, previousAllowYield;
-
- argument = null;
- expr = new Node();
-
- expectKeyword('yield');
-
- if (!hasLineTerminator) {
- previousAllowYield = state.allowYield;
- state.allowYield = false;
- delegate = match('*');
- if (delegate) {
- lex();
- argument = parseAssignmentExpression();
- } else {
- if (!match(';') && !match('}') && !match(')') && lookahead.type !== Token.EOF) {
- argument = parseAssignmentExpression();
- }
- }
- state.allowYield = previousAllowYield;
- }
-
- return expr.finishYieldExpression(argument, delegate);
- }
-
- // ECMA-262 12.14 Assignment Operators
-
- function parseAssignmentExpression() {
- var token, expr, right, list, startToken;
-
- startToken = lookahead;
- token = lookahead;
-
- if (!state.allowYield && matchKeyword('yield')) {
- return parseYieldExpression();
- }
-
- expr = parseConditionalExpression();
-
- if (expr.type === PlaceHolders.ArrowParameterPlaceHolder || match('=>')) {
- isAssignmentTarget = isBindingElement = false;
- list = reinterpretAsCoverFormalsList(expr);
-
- if (list) {
- firstCoverInitializedNameError = null;
- return parseArrowFunctionExpression(list, new WrappingNode(startToken));
- }
-
- return expr;
- }
-
- if (matchAssign()) {
- if (!isAssignmentTarget) {
- tolerateError(Messages.InvalidLHSInAssignment);
- }
-
- // ECMA-262 12.1.1
- if (strict && expr.type === Syntax.Identifier) {
- if (isRestrictedWord(expr.name)) {
- tolerateUnexpectedToken(token, Messages.StrictLHSAssignment);
- }
- if (isStrictModeReservedWord(expr.name)) {
- tolerateUnexpectedToken(token, Messages.StrictReservedWord);
- }
- }
-
- if (!match('=')) {
- isAssignmentTarget = isBindingElement = false;
- } else {
- reinterpretExpressionAsPattern(expr);
- }
-
- token = lex();
- right = isolateCoverGrammar(parseAssignmentExpression);
- expr = new WrappingNode(startToken).finishAssignmentExpression(token.value, expr, right);
- firstCoverInitializedNameError = null;
- }
-
- return expr;
- }
-
- // ECMA-262 12.15 Comma Operator
-
- function parseExpression() {
- var expr, startToken = lookahead, expressions;
-
- expr = isolateCoverGrammar(parseAssignmentExpression);
-
- if (match(',')) {
- expressions = [expr];
-
- while (startIndex < length) {
- if (!match(',')) {
- break;
- }
- lex();
- expressions.push(isolateCoverGrammar(parseAssignmentExpression));
- }
-
- expr = new WrappingNode(startToken).finishSequenceExpression(expressions);
- }
-
- return expr;
- }
-
- // ECMA-262 13.2 Block
-
- function parseStatementListItem() {
- if (lookahead.type === Token.Keyword) {
- switch (lookahead.value) {
- case 'export':
- if (state.sourceType !== 'module') {
- tolerateUnexpectedToken(lookahead, Messages.IllegalExportDeclaration);
- }
- return parseExportDeclaration();
- case 'import':
- if (state.sourceType !== 'module') {
- tolerateUnexpectedToken(lookahead, Messages.IllegalImportDeclaration);
- }
- return parseImportDeclaration();
- case 'const':
- return parseLexicalDeclaration({inFor: false});
- case 'function':
- return parseFunctionDeclaration(new Node());
- case 'class':
- return parseClassDeclaration();
- }
- }
-
- if (matchKeyword('let') && isLexicalDeclaration()) {
- return parseLexicalDeclaration({inFor: false});
- }
-
- return parseStatement();
- }
-
- function parseStatementList() {
- var list = [];
- while (startIndex < length) {
- if (match('}')) {
- break;
- }
- list.push(parseStatementListItem());
- }
-
- return list;
- }
-
- function parseBlock() {
- var block, node = new Node();
-
- expect('{');
-
- block = parseStatementList();
-
- expect('}');
-
- return node.finishBlockStatement(block);
- }
-
- // ECMA-262 13.3.2 Variable Statement
-
- function parseVariableIdentifier(kind) {
- var token, node = new Node();
-
- token = lex();
-
- if (token.type === Token.Keyword && token.value === 'yield') {
- if (strict) {
- tolerateUnexpectedToken(token, Messages.StrictReservedWord);
- } if (!state.allowYield) {
- throwUnexpectedToken(token);
- }
- } else if (token.type !== Token.Identifier) {
- if (strict && token.type === Token.Keyword && isStrictModeReservedWord(token.value)) {
- tolerateUnexpectedToken(token, Messages.StrictReservedWord);
- } else {
- if (strict || token.value !== 'let' || kind !== 'var') {
- throwUnexpectedToken(token);
- }
- }
- } else if (state.sourceType === 'module' && token.type === Token.Identifier && token.value === 'await') {
- tolerateUnexpectedToken(token);
- }
-
- return node.finishIdentifier(token.value);
- }
-
- function parseVariableDeclaration(options) {
- var init = null, id, node = new Node(), params = [];
-
- id = parsePattern(params, 'var');
-
- // ECMA-262 12.2.1
- if (strict && isRestrictedWord(id.name)) {
- tolerateError(Messages.StrictVarName);
- }
-
- if (match('=')) {
- lex();
- init = isolateCoverGrammar(parseAssignmentExpression);
- } else if (id.type !== Syntax.Identifier && !options.inFor) {
- expect('=');
- }
-
- return node.finishVariableDeclarator(id, init);
- }
-
- function parseVariableDeclarationList(options) {
- var list = [];
-
- do {
- list.push(parseVariableDeclaration({ inFor: options.inFor }));
- if (!match(',')) {
- break;
- }
- lex();
- } while (startIndex < length);
-
- return list;
- }
-
- function parseVariableStatement(node) {
- var declarations;
-
- expectKeyword('var');
-
- declarations = parseVariableDeclarationList({ inFor: false });
-
- consumeSemicolon();
-
- return node.finishVariableDeclaration(declarations);
- }
-
- // ECMA-262 13.3.1 Let and Const Declarations
-
- function parseLexicalBinding(kind, options) {
- var init = null, id, node = new Node(), params = [];
-
- id = parsePattern(params, kind);
-
- // ECMA-262 12.2.1
- if (strict && id.type === Syntax.Identifier && isRestrictedWord(id.name)) {
- tolerateError(Messages.StrictVarName);
- }
-
- if (kind === 'const') {
- if (!matchKeyword('in') && !matchContextualKeyword('of')) {
- expect('=');
- init = isolateCoverGrammar(parseAssignmentExpression);
- }
- } else if ((!options.inFor && id.type !== Syntax.Identifier) || match('=')) {
- expect('=');
- init = isolateCoverGrammar(parseAssignmentExpression);
- }
-
- return node.finishVariableDeclarator(id, init);
- }
-
- function parseBindingList(kind, options) {
- var list = [];
-
- do {
- list.push(parseLexicalBinding(kind, options));
- if (!match(',')) {
- break;
- }
- lex();
- } while (startIndex < length);
-
- return list;
- }
-
-
- function tokenizerState() {
- return {
- index: index,
- lineNumber: lineNumber,
- lineStart: lineStart,
- hasLineTerminator: hasLineTerminator,
- lastIndex: lastIndex,
- lastLineNumber: lastLineNumber,
- lastLineStart: lastLineStart,
- startIndex: startIndex,
- startLineNumber: startLineNumber,
- startLineStart: startLineStart,
- lookahead: lookahead,
- tokenCount: extra.tokens ? extra.tokens.length : 0
- };
- }
-
- function resetTokenizerState(ts) {
- index = ts.index;
- lineNumber = ts.lineNumber;
- lineStart = ts.lineStart;
- hasLineTerminator = ts.hasLineTerminator;
- lastIndex = ts.lastIndex;
- lastLineNumber = ts.lastLineNumber;
- lastLineStart = ts.lastLineStart;
- startIndex = ts.startIndex;
- startLineNumber = ts.startLineNumber;
- startLineStart = ts.startLineStart;
- lookahead = ts.lookahead;
- if (extra.tokens) {
- extra.tokens.splice(ts.tokenCount, extra.tokens.length);
- }
- }
-
- function isLexicalDeclaration() {
- var lexical, ts;
-
- ts = tokenizerState();
-
- lex();
- lexical = (lookahead.type === Token.Identifier) || match('[') || match('{') ||
- matchKeyword('let') || matchKeyword('yield');
-
- resetTokenizerState(ts);
-
- return lexical;
- }
-
- function parseLexicalDeclaration(options) {
- var kind, declarations, node = new Node();
-
- kind = lex().value;
- assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const');
-
- declarations = parseBindingList(kind, options);
-
- consumeSemicolon();
-
- return node.finishLexicalDeclaration(declarations, kind);
- }
-
- function parseRestElement(params) {
- var param, node = new Node();
-
- lex();
-
- if (match('{')) {
- throwError(Messages.ObjectPatternAsRestParameter);
- }
-
- params.push(lookahead);
-
- param = parseVariableIdentifier();
-
- if (match('=')) {
- throwError(Messages.DefaultRestParameter);
- }
-
- if (!match(')')) {
- throwError(Messages.ParameterAfterRestParameter);
- }
-
- return node.finishRestElement(param);
- }
-
- // ECMA-262 13.4 Empty Statement
-
- function parseEmptyStatement(node) {
- expect(';');
- return node.finishEmptyStatement();
- }
-
- // ECMA-262 12.4 Expression Statement
-
- function parseExpressionStatement(node) {
- var expr = parseExpression();
- consumeSemicolon();
- return node.finishExpressionStatement(expr);
- }
-
- // ECMA-262 13.6 If statement
-
- function parseIfStatement(node) {
- var test, consequent, alternate;
-
- expectKeyword('if');
-
- expect('(');
-
- test = parseExpression();
-
- expect(')');
-
- consequent = parseStatement();
-
- if (matchKeyword('else')) {
- lex();
- alternate = parseStatement();
- } else {
- alternate = null;
- }
-
- return node.finishIfStatement(test, consequent, alternate);
- }
-
- // ECMA-262 13.7 Iteration Statements
-
- function parseDoWhileStatement(node) {
- var body, test, oldInIteration;
-
- expectKeyword('do');
-
- oldInIteration = state.inIteration;
- state.inIteration = true;
-
- body = parseStatement();
-
- state.inIteration = oldInIteration;
-
- expectKeyword('while');
-
- expect('(');
-
- test = parseExpression();
-
- expect(')');
-
- if (match(';')) {
- lex();
- }
-
- return node.finishDoWhileStatement(body, test);
- }
-
- function parseWhileStatement(node) {
- var test, body, oldInIteration;
-
- expectKeyword('while');
-
- expect('(');
-
- test = parseExpression();
-
- expect(')');
-
- oldInIteration = state.inIteration;
- state.inIteration = true;
-
- body = parseStatement();
-
- state.inIteration = oldInIteration;
-
- return node.finishWhileStatement(test, body);
- }
-
- function parseForStatement(node) {
- var init, forIn, initSeq, initStartToken, test, update, left, right, kind, declarations,
- body, oldInIteration, previousAllowIn = state.allowIn;
-
- init = test = update = null;
- forIn = true;
-
- expectKeyword('for');
-
- expect('(');
-
- if (match(';')) {
- lex();
- } else {
- if (matchKeyword('var')) {
- init = new Node();
- lex();
-
- state.allowIn = false;
- declarations = parseVariableDeclarationList({ inFor: true });
- state.allowIn = previousAllowIn;
-
- if (declarations.length === 1 && matchKeyword('in')) {
- init = init.finishVariableDeclaration(declarations);
- lex();
- left = init;
- right = parseExpression();
- init = null;
- } else if (declarations.length === 1 && declarations[0].init === null && matchContextualKeyword('of')) {
- init = init.finishVariableDeclaration(declarations);
- lex();
- left = init;
- right = parseAssignmentExpression();
- init = null;
- forIn = false;
- } else {
- init = init.finishVariableDeclaration(declarations);
- expect(';');
- }
- } else if (matchKeyword('const') || matchKeyword('let')) {
- init = new Node();
- kind = lex().value;
-
- if (!strict && lookahead.value === 'in') {
- init = init.finishIdentifier(kind);
- lex();
- left = init;
- right = parseExpression();
- init = null;
- } else {
- state.allowIn = false;
- declarations = parseBindingList(kind, {inFor: true});
- state.allowIn = previousAllowIn;
-
- if (declarations.length === 1 && declarations[0].init === null && matchKeyword('in')) {
- init = init.finishLexicalDeclaration(declarations, kind);
- lex();
- left = init;
- right = parseExpression();
- init = null;
- } else if (declarations.length === 1 && declarations[0].init === null && matchContextualKeyword('of')) {
- init = init.finishLexicalDeclaration(declarations, kind);
- lex();
- left = init;
- right = parseAssignmentExpression();
- init = null;
- forIn = false;
- } else {
- consumeSemicolon();
- init = init.finishLexicalDeclaration(declarations, kind);
- }
- }
- } else {
- initStartToken = lookahead;
- state.allowIn = false;
- init = inheritCoverGrammar(parseAssignmentExpression);
- state.allowIn = previousAllowIn;
-
- if (matchKeyword('in')) {
- if (!isAssignmentTarget) {
- tolerateError(Messages.InvalidLHSInForIn);
- }
-
- lex();
- reinterpretExpressionAsPattern(init);
- left = init;
- right = parseExpression();
- init = null;
- } else if (matchContextualKeyword('of')) {
- if (!isAssignmentTarget) {
- tolerateError(Messages.InvalidLHSInForLoop);
- }
-
- lex();
- reinterpretExpressionAsPattern(init);
- left = init;
- right = parseAssignmentExpression();
- init = null;
- forIn = false;
- } else {
- if (match(',')) {
- initSeq = [init];
- while (match(',')) {
- lex();
- initSeq.push(isolateCoverGrammar(parseAssignmentExpression));
- }
- init = new WrappingNode(initStartToken).finishSequenceExpression(initSeq);
- }
- expect(';');
- }
- }
- }
-
- if (typeof left === 'undefined') {
-
- if (!match(';')) {
- test = parseExpression();
- }
- expect(';');
-
- if (!match(')')) {
- update = parseExpression();
- }
- }
-
- expect(')');
-
- oldInIteration = state.inIteration;
- state.inIteration = true;
-
- body = isolateCoverGrammar(parseStatement);
-
- state.inIteration = oldInIteration;
-
- return (typeof left === 'undefined') ?
- node.finishForStatement(init, test, update, body) :
- forIn ? node.finishForInStatement(left, right, body) :
- node.finishForOfStatement(left, right, body);
- }
-
- // ECMA-262 13.8 The continue statement
-
- function parseContinueStatement(node) {
- var label = null, key;
-
- expectKeyword('continue');
-
- // Optimize the most common form: 'continue;'.
- if (source.charCodeAt(startIndex) === 0x3B) {
- lex();
-
- if (!state.inIteration) {
- throwError(Messages.IllegalContinue);
- }
-
- return node.finishContinueStatement(null);
- }
-
- if (hasLineTerminator) {
- if (!state.inIteration) {
- throwError(Messages.IllegalContinue);
- }
-
- return node.finishContinueStatement(null);
- }
-
- if (lookahead.type === Token.Identifier) {
- label = parseVariableIdentifier();
-
- key = '$' + label.name;
- if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
- throwError(Messages.UnknownLabel, label.name);
- }
- }
-
- consumeSemicolon();
-
- if (label === null && !state.inIteration) {
- throwError(Messages.IllegalContinue);
- }
-
- return node.finishContinueStatement(label);
- }
-
- // ECMA-262 13.9 The break statement
-
- function parseBreakStatement(node) {
- var label = null, key;
-
- expectKeyword('break');
-
- // Catch the very common case first: immediately a semicolon (U+003B).
- if (source.charCodeAt(lastIndex) === 0x3B) {
- lex();
-
- if (!(state.inIteration || state.inSwitch)) {
- throwError(Messages.IllegalBreak);
- }
-
- return node.finishBreakStatement(null);
- }
-
- if (hasLineTerminator) {
- if (!(state.inIteration || state.inSwitch)) {
- throwError(Messages.IllegalBreak);
- }
- } else if (lookahead.type === Token.Identifier) {
- label = parseVariableIdentifier();
-
- key = '$' + label.name;
- if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
- throwError(Messages.UnknownLabel, label.name);
- }
- }
-
- consumeSemicolon();
-
- if (label === null && !(state.inIteration || state.inSwitch)) {
- throwError(Messages.IllegalBreak);
- }
-
- return node.finishBreakStatement(label);
- }
-
- // ECMA-262 13.10 The return statement
-
- function parseReturnStatement(node) {
- var argument = null;
-
- expectKeyword('return');
-
- if (!state.inFunctionBody) {
- tolerateError(Messages.IllegalReturn);
- }
-
- // 'return' followed by a space and an identifier is very common.
- if (source.charCodeAt(lastIndex) === 0x20) {
- if (isIdentifierStart(source.charCodeAt(lastIndex + 1))) {
- argument = parseExpression();
- consumeSemicolon();
- return node.finishReturnStatement(argument);
- }
- }
-
- if (hasLineTerminator) {
- // HACK
- return node.finishReturnStatement(null);
- }
-
- if (!match(';')) {
- if (!match('}') && lookahead.type !== Token.EOF) {
- argument = parseExpression();
- }
- }
-
- consumeSemicolon();
-
- return node.finishReturnStatement(argument);
- }
-
- // ECMA-262 13.11 The with statement
-
- function parseWithStatement(node) {
- var object, body;
-
- if (strict) {
- tolerateError(Messages.StrictModeWith);
- }
-
- expectKeyword('with');
-
- expect('(');
-
- object = parseExpression();
-
- expect(')');
-
- body = parseStatement();
-
- return node.finishWithStatement(object, body);
- }
-
- // ECMA-262 13.12 The switch statement
-
- function parseSwitchCase() {
- var test, consequent = [], statement, node = new Node();
-
- if (matchKeyword('default')) {
- lex();
- test = null;
- } else {
- expectKeyword('case');
- test = parseExpression();
- }
- expect(':');
-
- while (startIndex < length) {
- if (match('}') || matchKeyword('default') || matchKeyword('case')) {
- break;
- }
- statement = parseStatementListItem();
- consequent.push(statement);
- }
-
- return node.finishSwitchCase(test, consequent);
- }
-
- function parseSwitchStatement(node) {
- var discriminant, cases, clause, oldInSwitch, defaultFound;
-
- expectKeyword('switch');
-
- expect('(');
-
- discriminant = parseExpression();
-
- expect(')');
-
- expect('{');
-
- cases = [];
-
- if (match('}')) {
- lex();
- return node.finishSwitchStatement(discriminant, cases);
- }
-
- oldInSwitch = state.inSwitch;
- state.inSwitch = true;
- defaultFound = false;
-
- while (startIndex < length) {
- if (match('}')) {
- break;
- }
- clause = parseSwitchCase();
- if (clause.test === null) {
- if (defaultFound) {
- throwError(Messages.MultipleDefaultsInSwitch);
- }
- defaultFound = true;
- }
- cases.push(clause);
- }
-
- state.inSwitch = oldInSwitch;
-
- expect('}');
-
- return node.finishSwitchStatement(discriminant, cases);
- }
-
- // ECMA-262 13.14 The throw statement
-
- function parseThrowStatement(node) {
- var argument;
-
- expectKeyword('throw');
-
- if (hasLineTerminator) {
- throwError(Messages.NewlineAfterThrow);
- }
-
- argument = parseExpression();
-
- consumeSemicolon();
-
- return node.finishThrowStatement(argument);
- }
-
- // ECMA-262 13.15 The try statement
-
- function parseCatchClause() {
- var param, params = [], paramMap = {}, key, i, body, node = new Node();
-
- expectKeyword('catch');
-
- expect('(');
- if (match(')')) {
- throwUnexpectedToken(lookahead);
- }
-
- param = parsePattern(params);
- for (i = 0; i < params.length; i++) {
- key = '$' + params[i].value;
- if (Object.prototype.hasOwnProperty.call(paramMap, key)) {
- tolerateError(Messages.DuplicateBinding, params[i].value);
- }
- paramMap[key] = true;
- }
-
- // ECMA-262 12.14.1
- if (strict && isRestrictedWord(param.name)) {
- tolerateError(Messages.StrictCatchVariable);
- }
-
- expect(')');
- body = parseBlock();
- return node.finishCatchClause(param, body);
- }
-
- function parseTryStatement(node) {
- var block, handler = null, finalizer = null;
-
- expectKeyword('try');
-
- block = parseBlock();
-
- if (matchKeyword('catch')) {
- handler = parseCatchClause();
- }
-
- if (matchKeyword('finally')) {
- lex();
- finalizer = parseBlock();
- }
-
- if (!handler && !finalizer) {
- throwError(Messages.NoCatchOrFinally);
- }
-
- return node.finishTryStatement(block, handler, finalizer);
- }
-
- // ECMA-262 13.16 The debugger statement
-
- function parseDebuggerStatement(node) {
- expectKeyword('debugger');
-
- consumeSemicolon();
-
- return node.finishDebuggerStatement();
- }
-
- // 13 Statements
-
- function parseStatement() {
- var type = lookahead.type,
- expr,
- labeledBody,
- key,
- node;
-
- if (type === Token.EOF) {
- throwUnexpectedToken(lookahead);
- }
-
- if (type === Token.Punctuator && lookahead.value === '{') {
- return parseBlock();
- }
- isAssignmentTarget = isBindingElement = true;
- node = new Node();
-
- if (type === Token.Punctuator) {
- switch (lookahead.value) {
- case ';':
- return parseEmptyStatement(node);
- case '(':
- return parseExpressionStatement(node);
- default:
- break;
- }
- } else if (type === Token.Keyword) {
- switch (lookahead.value) {
- case 'break':
- return parseBreakStatement(node);
- case 'continue':
- return parseContinueStatement(node);
- case 'debugger':
- return parseDebuggerStatement(node);
- case 'do':
- return parseDoWhileStatement(node);
- case 'for':
- return parseForStatement(node);
- case 'function':
- return parseFunctionDeclaration(node);
- case 'if':
- return parseIfStatement(node);
- case 'return':
- return parseReturnStatement(node);
- case 'switch':
- return parseSwitchStatement(node);
- case 'throw':
- return parseThrowStatement(node);
- case 'try':
- return parseTryStatement(node);
- case 'var':
- return parseVariableStatement(node);
- case 'while':
- return parseWhileStatement(node);
- case 'with':
- return parseWithStatement(node);
- default:
- break;
- }
- }
-
- expr = parseExpression();
-
- // ECMA-262 12.12 Labelled Statements
- if ((expr.type === Syntax.Identifier) && match(':')) {
- lex();
-
- key = '$' + expr.name;
- if (Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
- throwError(Messages.Redeclaration, 'Label', expr.name);
- }
-
- state.labelSet[key] = true;
- labeledBody = parseStatement();
- delete state.labelSet[key];
- return node.finishLabeledStatement(expr, labeledBody);
- }
-
- consumeSemicolon();
-
- return node.finishExpressionStatement(expr);
- }
-
- // ECMA-262 14.1 Function Definition
-
- function parseFunctionSourceElements() {
- var statement, body = [], token, directive, firstRestricted,
- oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody, oldParenthesisCount,
- node = new Node();
-
- expect('{');
-
- while (startIndex < length) {
- if (lookahead.type !== Token.StringLiteral) {
- break;
- }
- token = lookahead;
-
- statement = parseStatementListItem();
- body.push(statement);
- if (statement.expression.type !== Syntax.Literal) {
- // this is not directive
- break;
- }
- directive = source.slice(token.start + 1, token.end - 1);
- if (directive === 'use strict') {
- strict = true;
- if (firstRestricted) {
- tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral);
- }
- } else {
- if (!firstRestricted && token.octal) {
- firstRestricted = token;
- }
- }
- }
-
- oldLabelSet = state.labelSet;
- oldInIteration = state.inIteration;
- oldInSwitch = state.inSwitch;
- oldInFunctionBody = state.inFunctionBody;
- oldParenthesisCount = state.parenthesizedCount;
-
- state.labelSet = {};
- state.inIteration = false;
- state.inSwitch = false;
- state.inFunctionBody = true;
- state.parenthesizedCount = 0;
-
- while (startIndex < length) {
- if (match('}')) {
- break;
- }
- body.push(parseStatementListItem());
- }
-
- expect('}');
-
- state.labelSet = oldLabelSet;
- state.inIteration = oldInIteration;
- state.inSwitch = oldInSwitch;
- state.inFunctionBody = oldInFunctionBody;
- state.parenthesizedCount = oldParenthesisCount;
-
- return node.finishBlockStatement(body);
- }
-
- function validateParam(options, param, name) {
- var key = '$' + name;
- if (strict) {
- if (isRestrictedWord(name)) {
- options.stricted = param;
- options.message = Messages.StrictParamName;
- }
- if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
- options.stricted = param;
- options.message = Messages.StrictParamDupe;
- }
- } else if (!options.firstRestricted) {
- if (isRestrictedWord(name)) {
- options.firstRestricted = param;
- options.message = Messages.StrictParamName;
- } else if (isStrictModeReservedWord(name)) {
- options.firstRestricted = param;
- options.message = Messages.StrictReservedWord;
- } else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
- options.stricted = param;
- options.message = Messages.StrictParamDupe;
- }
- }
- options.paramSet[key] = true;
- }
-
- function parseParam(options) {
- var token, param, params = [], i, def;
-
- token = lookahead;
- if (token.value === '...') {
- param = parseRestElement(params);
- validateParam(options, param.argument, param.argument.name);
- options.params.push(param);
- options.defaults.push(null);
- return false;
- }
-
- param = parsePatternWithDefault(params);
- for (i = 0; i < params.length; i++) {
- validateParam(options, params[i], params[i].value);
- }
-
- if (param.type === Syntax.AssignmentPattern) {
- def = param.right;
- param = param.left;
- ++options.defaultCount;
- }
-
- options.params.push(param);
- options.defaults.push(def);
-
- return !match(')');
- }
-
- function parseParams(firstRestricted) {
- var options;
-
- options = {
- params: [],
- defaultCount: 0,
- defaults: [],
- firstRestricted: firstRestricted
- };
-
- expect('(');
-
- if (!match(')')) {
- options.paramSet = {};
- while (startIndex < length) {
- if (!parseParam(options)) {
- break;
- }
- expect(',');
- }
- }
-
- expect(')');
-
- if (options.defaultCount === 0) {
- options.defaults = [];
- }
-
- return {
- params: options.params,
- defaults: options.defaults,
- stricted: options.stricted,
- firstRestricted: options.firstRestricted,
- message: options.message
- };
- }
-
- function parseFunctionDeclaration(node, identifierIsOptional) {
- var id = null, params = [], defaults = [], body, token, stricted, tmp, firstRestricted, message, previousStrict,
- isGenerator, previousAllowYield;
-
- previousAllowYield = state.allowYield;
-
- expectKeyword('function');
-
- isGenerator = match('*');
- if (isGenerator) {
- lex();
- }
-
- if (!identifierIsOptional || !match('(')) {
- token = lookahead;
- id = parseVariableIdentifier();
- if (strict) {
- if (isRestrictedWord(token.value)) {
- tolerateUnexpectedToken(token, Messages.StrictFunctionName);
- }
- } else {
- if (isRestrictedWord(token.value)) {
- firstRestricted = token;
- message = Messages.StrictFunctionName;
- } else if (isStrictModeReservedWord(token.value)) {
- firstRestricted = token;
- message = Messages.StrictReservedWord;
- }
- }
- }
-
- state.allowYield = !isGenerator;
- tmp = parseParams(firstRestricted);
- params = tmp.params;
- defaults = tmp.defaults;
- stricted = tmp.stricted;
- firstRestricted = tmp.firstRestricted;
- if (tmp.message) {
- message = tmp.message;
- }
-
-
- previousStrict = strict;
- body = parseFunctionSourceElements();
- if (strict && firstRestricted) {
- throwUnexpectedToken(firstRestricted, message);
- }
- if (strict && stricted) {
- tolerateUnexpectedToken(stricted, message);
- }
-
- strict = previousStrict;
- state.allowYield = previousAllowYield;
-
- return node.finishFunctionDeclaration(id, params, defaults, body, isGenerator);
- }
-
- function parseFunctionExpression() {
- var token, id = null, stricted, firstRestricted, message, tmp,
- params = [], defaults = [], body, previousStrict, node = new Node(),
- isGenerator, previousAllowYield;
-
- previousAllowYield = state.allowYield;
-
- expectKeyword('function');
-
- isGenerator = match('*');
- if (isGenerator) {
- lex();
- }
-
- state.allowYield = !isGenerator;
- if (!match('(')) {
- token = lookahead;
- id = (!strict && !isGenerator && matchKeyword('yield')) ? parseNonComputedProperty() : parseVariableIdentifier();
- if (strict) {
- if (isRestrictedWord(token.value)) {
- tolerateUnexpectedToken(token, Messages.StrictFunctionName);
- }
- } else {
- if (isRestrictedWord(token.value)) {
- firstRestricted = token;
- message = Messages.StrictFunctionName;
- } else if (isStrictModeReservedWord(token.value)) {
- firstRestricted = token;
- message = Messages.StrictReservedWord;
- }
- }
- }
-
- tmp = parseParams(firstRestricted);
- params = tmp.params;
- defaults = tmp.defaults;
- stricted = tmp.stricted;
- firstRestricted = tmp.firstRestricted;
- if (tmp.message) {
- message = tmp.message;
- }
-
- previousStrict = strict;
- body = parseFunctionSourceElements();
- if (strict && firstRestricted) {
- throwUnexpectedToken(firstRestricted, message);
- }
- if (strict && stricted) {
- tolerateUnexpectedToken(stricted, message);
- }
- strict = previousStrict;
- state.allowYield = previousAllowYield;
-
- return node.finishFunctionExpression(id, params, defaults, body, isGenerator);
- }
-
- // ECMA-262 14.5 Class Definitions
-
- function parseClassBody() {
- var classBody, token, isStatic, hasConstructor = false, body, method, computed, key;
-
- classBody = new Node();
-
- expect('{');
- body = [];
- while (!match('}')) {
- if (match(';')) {
- lex();
- } else {
- method = new Node();
- token = lookahead;
- isStatic = false;
- computed = match('[');
- if (match('*')) {
- lex();
- } else {
- key = parseObjectPropertyKey();
- if (key.name === 'static' && (lookaheadPropertyName() || match('*'))) {
- token = lookahead;
- isStatic = true;
- computed = match('[');
- if (match('*')) {
- lex();
- } else {
- key = parseObjectPropertyKey();
- }
- }
- }
- method = tryParseMethodDefinition(token, key, computed, method);
- if (method) {
- method['static'] = isStatic; // jscs:ignore requireDotNotation
- if (method.kind === 'init') {
- method.kind = 'method';
- }
- if (!isStatic) {
- if (!method.computed && (method.key.name || method.key.value.toString()) === 'constructor') {
- if (method.kind !== 'method' || !method.method || method.value.generator) {
- throwUnexpectedToken(token, Messages.ConstructorSpecialMethod);
- }
- if (hasConstructor) {
- throwUnexpectedToken(token, Messages.DuplicateConstructor);
- } else {
- hasConstructor = true;
- }
- method.kind = 'constructor';
- }
- } else {
- if (!method.computed && (method.key.name || method.key.value.toString()) === 'prototype') {
- throwUnexpectedToken(token, Messages.StaticPrototype);
- }
- }
- method.type = Syntax.MethodDefinition;
- delete method.method;
- delete method.shorthand;
- body.push(method);
- } else {
- throwUnexpectedToken(lookahead);
- }
- }
- }
- lex();
- return classBody.finishClassBody(body);
- }
-
- function parseClassDeclaration(identifierIsOptional) {
- var id = null, superClass = null, classNode = new Node(), classBody, previousStrict = strict;
- strict = true;
-
- expectKeyword('class');
-
- if (!identifierIsOptional || lookahead.type === Token.Identifier) {
- id = parseVariableIdentifier();
- }
-
- if (matchKeyword('extends')) {
- lex();
- superClass = isolateCoverGrammar(parseLeftHandSideExpressionAllowCall);
- }
- classBody = parseClassBody();
- strict = previousStrict;
-
- return classNode.finishClassDeclaration(id, superClass, classBody);
- }
-
- function parseClassExpression() {
- var id = null, superClass = null, classNode = new Node(), classBody, previousStrict = strict;
- strict = true;
-
- expectKeyword('class');
-
- if (lookahead.type === Token.Identifier) {
- id = parseVariableIdentifier();
- }
-
- if (matchKeyword('extends')) {
- lex();
- superClass = isolateCoverGrammar(parseLeftHandSideExpressionAllowCall);
- }
- classBody = parseClassBody();
- strict = previousStrict;
-
- return classNode.finishClassExpression(id, superClass, classBody);
- }
-
- // ECMA-262 15.2 Modules
-
- function parseModuleSpecifier() {
- var node = new Node();
-
- if (lookahead.type !== Token.StringLiteral) {
- throwError(Messages.InvalidModuleSpecifier);
- }
- return node.finishLiteral(lex());
- }
-
- // ECMA-262 15.2.3 Exports
-
- function parseExportSpecifier() {
- var exported, local, node = new Node(), def;
- if (matchKeyword('default')) {
- // export {default} from 'something';
- def = new Node();
- lex();
- local = def.finishIdentifier('default');
- } else {
- local = parseVariableIdentifier();
- }
- if (matchContextualKeyword('as')) {
- lex();
- exported = parseNonComputedProperty();
- }
- return node.finishExportSpecifier(local, exported);
- }
-
- function parseExportNamedDeclaration(node) {
- var declaration = null,
- isExportFromIdentifier,
- src = null, specifiers = [];
-
- // non-default export
- if (lookahead.type === Token.Keyword) {
- // covers:
- // export var f = 1;
- switch (lookahead.value) {
- case 'let':
- case 'const':
- declaration = parseLexicalDeclaration({inFor: false});
- return node.finishExportNamedDeclaration(declaration, specifiers, null);
- case 'var':
- case 'class':
- case 'function':
- declaration = parseStatementListItem();
- return node.finishExportNamedDeclaration(declaration, specifiers, null);
- }
- }
-
- expect('{');
- while (!match('}')) {
- isExportFromIdentifier = isExportFromIdentifier || matchKeyword('default');
- specifiers.push(parseExportSpecifier());
- if (!match('}')) {
- expect(',');
- if (match('}')) {
- break;
- }
- }
- }
- expect('}');
-
- if (matchContextualKeyword('from')) {
- // covering:
- // export {default} from 'foo';
- // export {foo} from 'foo';
- lex();
- src = parseModuleSpecifier();
- consumeSemicolon();
- } else if (isExportFromIdentifier) {
- // covering:
- // export {default}; // missing fromClause
- throwError(lookahead.value ?
- Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
- } else {
- // cover
- // export {foo};
- consumeSemicolon();
- }
- return node.finishExportNamedDeclaration(declaration, specifiers, src);
- }
-
- function parseExportDefaultDeclaration(node) {
- var declaration = null,
- expression = null;
-
- // covers:
- // export default ...
- expectKeyword('default');
-
- if (matchKeyword('function')) {
- // covers:
- // export default function foo () {}
- // export default function () {}
- declaration = parseFunctionDeclaration(new Node(), true);
- return node.finishExportDefaultDeclaration(declaration);
- }
- if (matchKeyword('class')) {
- declaration = parseClassDeclaration(true);
- return node.finishExportDefaultDeclaration(declaration);
- }
-
- if (matchContextualKeyword('from')) {
- throwError(Messages.UnexpectedToken, lookahead.value);
- }
-
- // covers:
- // export default {};
- // export default [];
- // export default (1 + 2);
- if (match('{')) {
- expression = parseObjectInitializer();
- } else if (match('[')) {
- expression = parseArrayInitializer();
- } else {
- expression = parseAssignmentExpression();
- }
- consumeSemicolon();
- return node.finishExportDefaultDeclaration(expression);
- }
-
- function parseExportAllDeclaration(node) {
- var src;
-
- // covers:
- // export * from 'foo';
- expect('*');
- if (!matchContextualKeyword('from')) {
- throwError(lookahead.value ?
- Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
- }
- lex();
- src = parseModuleSpecifier();
- consumeSemicolon();
-
- return node.finishExportAllDeclaration(src);
- }
-
- function parseExportDeclaration() {
- var node = new Node();
- if (state.inFunctionBody) {
- throwError(Messages.IllegalExportDeclaration);
- }
-
- expectKeyword('export');
-
- if (matchKeyword('default')) {
- return parseExportDefaultDeclaration(node);
- }
- if (match('*')) {
- return parseExportAllDeclaration(node);
- }
- return parseExportNamedDeclaration(node);
- }
-
- // ECMA-262 15.2.2 Imports
-
- function parseImportSpecifier() {
- // import {<foo as bar>} ...;
- var local, imported, node = new Node();
-
- imported = parseNonComputedProperty();
- if (matchContextualKeyword('as')) {
- lex();
- local = parseVariableIdentifier();
- }
-
- return node.finishImportSpecifier(local, imported);
- }
-
- function parseNamedImports() {
- var specifiers = [];
- // {foo, bar as bas}
- expect('{');
- while (!match('}')) {
- specifiers.push(parseImportSpecifier());
- if (!match('}')) {
- expect(',');
- if (match('}')) {
- break;
- }
- }
- }
- expect('}');
- return specifiers;
- }
-
- function parseImportDefaultSpecifier() {
- // import <foo> ...;
- var local, node = new Node();
-
- local = parseNonComputedProperty();
-
- return node.finishImportDefaultSpecifier(local);
- }
-
- function parseImportNamespaceSpecifier() {
- // import <* as foo> ...;
- var local, node = new Node();
-
- expect('*');
- if (!matchContextualKeyword('as')) {
- throwError(Messages.NoAsAfterImportNamespace);
- }
- lex();
- local = parseNonComputedProperty();
-
- return node.finishImportNamespaceSpecifier(local);
- }
-
- function parseImportDeclaration() {
- var specifiers = [], src, node = new Node();
-
- if (state.inFunctionBody) {
- throwError(Messages.IllegalImportDeclaration);
- }
-
- expectKeyword('import');
-
- if (lookahead.type === Token.StringLiteral) {
- // import 'foo';
- src = parseModuleSpecifier();
- } else {
-
- if (match('{')) {
- // import {bar}
- specifiers = specifiers.concat(parseNamedImports());
- } else if (match('*')) {
- // import * as foo
- specifiers.push(parseImportNamespaceSpecifier());
- } else if (isIdentifierName(lookahead) && !matchKeyword('default')) {
- // import foo
- specifiers.push(parseImportDefaultSpecifier());
- if (match(',')) {
- lex();
- if (match('*')) {
- // import foo, * as foo
- specifiers.push(parseImportNamespaceSpecifier());
- } else if (match('{')) {
- // import foo, {bar}
- specifiers = specifiers.concat(parseNamedImports());
- } else {
- throwUnexpectedToken(lookahead);
- }
- }
- } else {
- throwUnexpectedToken(lex());
- }
-
- if (!matchContextualKeyword('from')) {
- throwError(lookahead.value ?
- Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
- }
- lex();
- src = parseModuleSpecifier();
- }
-
- consumeSemicolon();
- return node.finishImportDeclaration(specifiers, src);
- }
-
- // ECMA-262 15.1 Scripts
-
- function parseScriptBody() {
- var statement, body = [], token, directive, firstRestricted;
-
- while (startIndex < length) {
- token = lookahead;
- if (token.type !== Token.StringLiteral) {
- break;
- }
-
- statement = parseStatementListItem();
- body.push(statement);
- if (statement.expression.type !== Syntax.Literal) {
- // this is not directive
- break;
- }
- directive = source.slice(token.start + 1, token.end - 1);
- if (directive === 'use strict') {
- strict = true;
- if (firstRestricted) {
- tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral);
- }
- } else {
- if (!firstRestricted && token.octal) {
- firstRestricted = token;
- }
- }
- }
-
- while (startIndex < length) {
- statement = parseStatementListItem();
- /* istanbul ignore if */
- if (typeof statement === 'undefined') {
- break;
- }
- body.push(statement);
- }
- return body;
- }
-
- function parseProgram() {
- var body, node;
-
- peek();
- node = new Node();
-
- body = parseScriptBody();
- return node.finishProgram(body, state.sourceType);
- }
-
- function filterTokenLocation() {
- var i, entry, token, tokens = [];
-
- for (i = 0; i < extra.tokens.length; ++i) {
- entry = extra.tokens[i];
- token = {
- type: entry.type,
- value: entry.value
- };
- if (entry.regex) {
- token.regex = {
- pattern: entry.regex.pattern,
- flags: entry.regex.flags
- };
- }
- if (extra.range) {
- token.range = entry.range;
- }
- if (extra.loc) {
- token.loc = entry.loc;
- }
- tokens.push(token);
- }
-
- extra.tokens = tokens;
- }
-
- function tokenize(code, options, delegate) {
- var toString,
- tokens;
-
- toString = String;
- if (typeof code !== 'string' && !(code instanceof String)) {
- code = toString(code);
- }
-
- source = code;
- index = 0;
- lineNumber = (source.length > 0) ? 1 : 0;
- lineStart = 0;
- startIndex = index;
- startLineNumber = lineNumber;
- startLineStart = lineStart;
- length = source.length;
- lookahead = null;
- state = {
- allowIn: true,
- allowYield: true,
- labelSet: {},
- inFunctionBody: false,
- inIteration: false,
- inSwitch: false,
- lastCommentStart: -1,
- curlyStack: []
- };
-
- extra = {};
-
- // Options matching.
- options = options || {};
-
- // Of course we collect tokens here.
- options.tokens = true;
- extra.tokens = [];
- extra.tokenValues = [];
- extra.tokenize = true;
- extra.delegate = delegate;
-
- // The following two fields are necessary to compute the Regex tokens.
- extra.openParenToken = -1;
- extra.openCurlyToken = -1;
-
- extra.range = (typeof options.range === 'boolean') && options.range;
- extra.loc = (typeof options.loc === 'boolean') && options.loc;
-
- if (typeof options.comment === 'boolean' && options.comment) {
- extra.comments = [];
- }
- if (typeof options.tolerant === 'boolean' && options.tolerant) {
- extra.errors = [];
- }
-
- try {
- peek();
- if (lookahead.type === Token.EOF) {
- return extra.tokens;
- }
-
- lex();
- while (lookahead.type !== Token.EOF) {
- try {
- lex();
- } catch (lexError) {
- if (extra.errors) {
- recordError(lexError);
- // We have to break on the first error
- // to avoid infinite loops.
- break;
- } else {
- throw lexError;
- }
- }
- }
-
- tokens = extra.tokens;
- if (typeof extra.errors !== 'undefined') {
- tokens.errors = extra.errors;
- }
- } catch (e) {
- throw e;
- } finally {
- extra = {};
- }
- return tokens;
- }
-
- function parse(code, options) {
- var program, toString;
-
- toString = String;
- if (typeof code !== 'string' && !(code instanceof String)) {
- code = toString(code);
- }
-
- source = code;
- index = 0;
- lineNumber = (source.length > 0) ? 1 : 0;
- lineStart = 0;
- startIndex = index;
- startLineNumber = lineNumber;
- startLineStart = lineStart;
- length = source.length;
- lookahead = null;
- state = {
- allowIn: true,
- allowYield: true,
- labelSet: {},
- inFunctionBody: false,
- inIteration: false,
- inSwitch: false,
- lastCommentStart: -1,
- curlyStack: [],
- sourceType: 'script'
- };
- strict = false;
-
- extra = {};
- if (typeof options !== 'undefined') {
- extra.range = (typeof options.range === 'boolean') && options.range;
- extra.loc = (typeof options.loc === 'boolean') && options.loc;
- extra.attachComment = (typeof options.attachComment === 'boolean') && options.attachComment;
-
- if (extra.loc && options.source !== null && options.source !== undefined) {
- extra.source = toString(options.source);
- }
-
- if (typeof options.tokens === 'boolean' && options.tokens) {
- extra.tokens = [];
- }
- if (typeof options.comment === 'boolean' && options.comment) {
- extra.comments = [];
- }
- if (typeof options.tolerant === 'boolean' && options.tolerant) {
- extra.errors = [];
- }
- if (extra.attachComment) {
- extra.range = true;
- extra.comments = [];
- extra.bottomRightStack = [];
- extra.trailingComments = [];
- extra.leadingComments = [];
- }
- if (options.sourceType === 'module') {
- // very restrictive condition for now
- state.sourceType = options.sourceType;
- strict = true;
- }
- }
-
- try {
- program = parseProgram();
- if (typeof extra.comments !== 'undefined') {
- program.comments = extra.comments;
- }
- if (typeof extra.tokens !== 'undefined') {
- filterTokenLocation();
- program.tokens = extra.tokens;
- }
- if (typeof extra.errors !== 'undefined') {
- program.errors = extra.errors;
- }
- } catch (e) {
- throw e;
- } finally {
- extra = {};
- }
-
- return program;
- }
-
- // Sync with *.json manifests.
- exports.version = '2.7.0';
-
- exports.tokenize = tokenize;
-
- exports.parse = parse;
-
- // Deep copy.
- /* istanbul ignore next */
- exports.Syntax = (function () {
- var name, types = {};
-
- if (typeof Object.create === 'function') {
- types = Object.create(null);
- }
-
- for (name in Syntax) {
- if (Syntax.hasOwnProperty(name)) {
- types[name] = Syntax[name];
- }
- }
-
- if (typeof Object.freeze === 'function') {
- Object.freeze(types);
- }
-
- return types;
- }());
-
-}));
-/* vim: set sw=4 ts=4 et tw=80 : */
diff --git a/features/org.eclipse.wst.jsdt.feature/feature.xml b/features/org.eclipse.wst.jsdt.feature/feature.xml
index cc28e48..093267e 100644
--- a/features/org.eclipse.wst.jsdt.feature/feature.xml
+++ b/features/org.eclipse.wst.jsdt.feature/feature.xml
@@ -32,13 +32,6 @@
unpack="false"/>
<plugin
- id="org.eclipse.wst.jsdt.nashorn.extension"
- download-size="0"
- install-size="0"
- version="0.0.0"
- unpack="false"/>
-
- <plugin
id="org.eclipse.wst.jsdt.manipulation"
download-size="0"
install-size="0"
diff --git a/pom.xml b/pom.xml
index 12b748d..77d1eb3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,6 @@
<module>nodejs</module>
<module>docs</module>
<module>tests</module>
- <module>nashorn</module>
<module>features</module>
</modules>
