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SelectionParser.java
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SelectionParser.java
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/*******************************************************************************
* Copyright (c) 2000, 2022 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Jesper Steen Møller <jesper@selskabet.org> - contributions for:
* Bug 531046: [10] ICodeAssist#codeSelect support for 'var'
*******************************************************************************/
package org.eclipse.jdt.internal.codeassist.select;
/*
* Parser able to build specific completion parse nodes, given a cursorLocation.
*
* Cursor location denotes the position of the last character behind which completion
* got requested:
* -1 means completion at the very beginning of the source
* 0 means completion behind the first character
* n means completion behind the n-th character
*/
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.codeassist.impl.AssistParser;
import org.eclipse.jdt.internal.compiler.CompilationResult;
import org.eclipse.jdt.internal.compiler.ast.AND_AND_Expression;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.ast.AbstractVariableDeclaration;
import org.eclipse.jdt.internal.compiler.ast.AllocationExpression;
import org.eclipse.jdt.internal.compiler.ast.Annotation;
import org.eclipse.jdt.internal.compiler.ast.Argument;
import org.eclipse.jdt.internal.compiler.ast.ArrayAllocationExpression;
import org.eclipse.jdt.internal.compiler.ast.CaseStatement;
import org.eclipse.jdt.internal.compiler.ast.CastExpression;
import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
import org.eclipse.jdt.internal.compiler.ast.ExplicitConstructorCall;
import org.eclipse.jdt.internal.compiler.ast.Expression;
import org.eclipse.jdt.internal.compiler.ast.FieldReference;
import org.eclipse.jdt.internal.compiler.ast.GuardedPattern;
import org.eclipse.jdt.internal.compiler.ast.ImportReference;
import org.eclipse.jdt.internal.compiler.ast.InstanceOfExpression;
import org.eclipse.jdt.internal.compiler.ast.LambdaExpression;
import org.eclipse.jdt.internal.compiler.ast.LocalDeclaration;
import org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation;
import org.eclipse.jdt.internal.compiler.ast.MemberValuePair;
import org.eclipse.jdt.internal.compiler.ast.MessageSend;
import org.eclipse.jdt.internal.compiler.ast.ModuleDeclaration;
import org.eclipse.jdt.internal.compiler.ast.ModuleReference;
import org.eclipse.jdt.internal.compiler.ast.NameReference;
import org.eclipse.jdt.internal.compiler.ast.NormalAnnotation;
import org.eclipse.jdt.internal.compiler.ast.Pattern;
import org.eclipse.jdt.internal.compiler.ast.QualifiedAllocationExpression;
import org.eclipse.jdt.internal.compiler.ast.Reference;
import org.eclipse.jdt.internal.compiler.ast.ReferenceExpression;
import org.eclipse.jdt.internal.compiler.ast.ReturnStatement;
import org.eclipse.jdt.internal.compiler.ast.SingleMemberAnnotation;
import org.eclipse.jdt.internal.compiler.ast.SingleNameReference;
import org.eclipse.jdt.internal.compiler.ast.Statement;
import org.eclipse.jdt.internal.compiler.ast.SuperReference;
import org.eclipse.jdt.internal.compiler.ast.SwitchStatement;
import org.eclipse.jdt.internal.compiler.ast.ThisReference;
import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
import org.eclipse.jdt.internal.compiler.ast.TypePattern;
import org.eclipse.jdt.internal.compiler.ast.TypeReference;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.env.ICompilationUnit;
import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
import org.eclipse.jdt.internal.compiler.parser.JavadocParser;
import org.eclipse.jdt.internal.compiler.parser.RecoveredType;
import org.eclipse.jdt.internal.compiler.problem.ProblemReporter;
import org.eclipse.jdt.internal.compiler.util.Util;
public class SelectionParser extends AssistParser {
// OWNER
protected static final int SELECTION_PARSER = 1024;
protected static final int SELECTION_OR_ASSIST_PARSER = ASSIST_PARSER + SELECTION_PARSER;
// KIND : all values known by SelectionParser are between 1025 and 1549
protected static final int K_BETWEEN_CASE_AND_COLONORARROW = SELECTION_PARSER + 1; // whether we are inside a block
protected static final int K_INSIDE_RETURN_STATEMENT = SELECTION_PARSER + 2; // whether we are between the keyword 'return' and the end of a return statement
protected static final int K_CAST_STATEMENT = SELECTION_PARSER + 3; // whether we are between ')' and the end of a cast statement
/* https://bugs.eclipse.org/bugs/show_bug.cgi?id=476693
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=515758
* Records whether and when we found an invocation being selected:
* 0: not found
* 1: found just now
* 2...: inside block (lambda body) within the invocation found before
* Rationale: we really need to complete parsing the invocation for resolving to succeed.
*/
private int selectionNodeFoundLevel = 0;
public ASTNode assistNodeParent; // the parent node of assist node
/* public fields */
public int selectionStart, selectionEnd;
public static final char[] SUPER = "super".toCharArray(); //$NON-NLS-1$
public static final char[] THIS = "this".toCharArray(); //$NON-NLS-1$
public SelectionParser(ProblemReporter problemReporter) {
super(problemReporter);
this.javadocParser.checkDocComment = true;
}
@Override
public char[] assistIdentifier(){
return ((SelectionScanner)this.scanner).selectionIdentifier;
}
protected void attachOrphanCompletionNode(){
if (this.isOrphanCompletionNode){
ASTNode orphan = this.assistNode;
this.isOrphanCompletionNode = false;
/* if in context of a type, then persists the identifier into a fake field return type */
if (this.currentElement instanceof RecoveredType){
RecoveredType recoveredType = (RecoveredType)this.currentElement;
/* filter out cases where scanner is still inside type header */
if (recoveredType.foundOpeningBrace) {
/* generate a pseudo field with a completion on type reference */
if (orphan instanceof TypeReference){
this.currentElement = this.currentElement.add(new SelectionOnFieldType((TypeReference)orphan), 0);
return;
}
}
}
if (orphan instanceof Expression && ((Expression) orphan).isTrulyExpression()) {
buildMoreCompletionContext((Expression)orphan);
} else {
if (lastIndexOfElement(K_LAMBDA_EXPRESSION_DELIMITER) < 0) { // lambdas are recovered up to the containing expression statement and will carry along the assist node anyways.
Statement statement = (Statement) orphan;
this.currentElement = this.currentElement.add(statement, 0);
}
}
if (isIndirectlyInsideLambdaExpression()) {
if (this.currentToken == TokenNameLBRACE)
this.ignoreNextOpeningBrace = true;
else if (this.currentToken == TokenNameRBRACE)
this.ignoreNextClosingBrace = true;
} else {
this.currentToken = 0; // given we are not on an eof, we do not want side effects caused by looked-ahead token
}
}
// if casestatement and not orphan, then add switch statement as assist node parent
if (this.expressionPtr > 0 && this.assistNodeParent == null) {
if (this.astPtr >= 0) {
if (this.astStack[this.astPtr] instanceof CaseStatement) {
// add switch statement as assistNodeParent
Expression expression = this.expressionStack[this.expressionPtr];
SwitchStatement switchStatement = new SwitchStatement();
switchStatement.expression = this.expressionStack[this.expressionPtr - 1];
if (this.astLengthPtr > -1 && this.astPtr > -1) {
int length = this.astLengthStack[this.astLengthPtr];
int newAstPtr = this.astPtr - length;
ASTNode firstNode = this.astStack[newAstPtr + 1];
if (length != 0 && firstNode.sourceStart > switchStatement.expression.sourceEnd) {
switchStatement.statements = new Statement[length + 1];
System.arraycopy(this.astStack, newAstPtr + 1, switchStatement.statements, 0, length);
}
}
CaseStatement caseStatement = new CaseStatement(expression, expression.sourceStart,
expression.sourceEnd);
if (switchStatement.statements == null) {
switchStatement.statements = new Statement[] { caseStatement };
} else {
switchStatement.statements[switchStatement.statements.length - 1] = caseStatement;
}
this.assistNodeParent = switchStatement;
}
}
}
}
private void buildMoreCompletionContext(Expression expression) {
ASTNode parentNode = null;
int kind = topKnownElementKind(SELECTION_OR_ASSIST_PARSER);
if(kind != 0) {
int info = topKnownElementInfo(SELECTION_OR_ASSIST_PARSER);
nextElement : switch (kind) {
case K_BETWEEN_CASE_AND_COLONORARROW :
if(this.expressionPtr >= info && info > -1) {
SwitchStatement switchStatement = new SwitchStatement();
switchStatement.expression = this.expressionStack[info]; // info is pointer to top expr when encountering 'case'
if(this.astLengthPtr > -1 && this.astPtr > -1) {
int length = this.astLengthStack[this.astLengthPtr];
int newAstPtr = this.astPtr - length;
ASTNode firstNode = this.astStack[newAstPtr + 1];
if(length != 0 && firstNode instanceof Statement && firstNode.sourceStart > switchStatement.expression.sourceEnd) {
switchStatement.statements = new Statement[length + 1];
System.arraycopy(
this.astStack,
newAstPtr + 1,
switchStatement.statements,
0,
length);
}
}
if(this.astPtr >=0) {
if( this.astStack[this.astPtr] instanceof TypePattern && expression instanceof NameReference) {
expression = new GuardedPattern((Pattern)this.astStack[this.astPtr], expression);
}
}
CaseStatement caseStatement = new CaseStatement(expression, expression.sourceStart, expression.sourceEnd);
if(switchStatement.statements == null) {
switchStatement.statements = new Statement[]{caseStatement};
} else {
switchStatement.statements[switchStatement.statements.length - 1] = caseStatement;
}
parentNode = switchStatement;
this.assistNodeParent = parentNode;
}
break nextElement;
case K_INSIDE_RETURN_STATEMENT :
if(info == this.bracketDepth) {
ReturnStatement returnStatement = new ReturnStatement(expression, expression.sourceStart, expression.sourceEnd);
parentNode = returnStatement;
this.assistNodeParent = parentNode;
}
break nextElement;
case K_CAST_STATEMENT :
Expression castType;
if(this.expressionPtr > 0
&& ((castType = this.expressionStack[this.expressionPtr-1]) instanceof TypeReference)) {
CastExpression cast = new CastExpression(expression, (TypeReference) castType);
cast.sourceStart = castType.sourceStart;
cast.sourceEnd= expression.sourceEnd;
parentNode = cast;
this.assistNodeParent = parentNode;
}
break nextElement;
}
}
// Do not add assist node/parent into the recovery system if we are inside a lambda. The lambda will be fully recovered including the containing statement and added.
if (lastIndexOfElement(K_LAMBDA_EXPRESSION_DELIMITER) < 0) {
if(parentNode != null) {
this.currentElement = this.currentElement.add((Statement)parentNode, 0);
} else {
this.currentElement = this.currentElement.add((Statement)wrapWithExplicitConstructorCallIfNeeded(expression), 0);
if(this.lastCheckPoint < expression.sourceEnd) {
this.lastCheckPoint = expression.sourceEnd + 1;
}
}
}
}
private boolean checkRecoveredType() {
if (this.currentElement instanceof RecoveredType){
/* check if current awaiting identifier is the completion identifier */
if (this.indexOfAssistIdentifier() < 0) return false;
if ((this.lastErrorEndPosition >= this.selectionStart)
&& (this.lastErrorEndPosition <= this.selectionEnd+1)){
return false;
}
RecoveredType recoveredType = (RecoveredType)this.currentElement;
/* filter out cases where scanner is still inside type header */
if (recoveredType.foundOpeningBrace) {
this.assistNode = this.getTypeReference(0);
this.lastCheckPoint = this.assistNode.sourceEnd + 1;
this.isOrphanCompletionNode = true;
return true;
}
}
return false;
}
@Override
protected void classInstanceCreation(boolean hasClassBody) {
// ClassInstanceCreationExpression ::= 'new' ClassType '(' ArgumentListopt ')' ClassBodyopt
// ClassBodyopt produces a null item on the astStak if it produces NO class body
// An empty class body produces a 0 on the length stack.....
if ((this.astLengthStack[this.astLengthPtr] == 1)
&& (this.astStack[this.astPtr] == null)) {
int index;
if ((index = this.indexOfAssistIdentifier()) < 0) {
super.classInstanceCreation(hasClassBody);
return;
} else if(this.identifierLengthPtr > -1 &&
(this.identifierLengthStack[this.identifierLengthPtr] - 1) != index) {
super.classInstanceCreation(hasClassBody);
return;
}
QualifiedAllocationExpression alloc;
this.astPtr--;
this.astLengthPtr--;
alloc = new SelectionOnQualifiedAllocationExpression();
alloc.sourceEnd = this.endPosition; //the position has been stored explicitly
int length;
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
this.expressionPtr -= length;
System.arraycopy(
this.expressionStack,
this.expressionPtr + 1,
alloc.arguments = new Expression[length],
0,
length);
}
// trick to avoid creating a selection on type reference
char [] oldIdent = assistIdentifier();
setAssistIdentifier(null);
alloc.type = getTypeReference(0);
checkForDiamond(alloc.type);
setAssistIdentifier(oldIdent);
//the default constructor with the correct number of argument
//will be created and added by the TC (see createsInternalConstructorWithBinding)
alloc.sourceStart = this.intStack[this.intPtr--];
pushOnExpressionStack(alloc);
this.assistNode = alloc;
this.lastCheckPoint = alloc.sourceEnd + 1;
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
} else {
super.classInstanceCreation(hasClassBody);
}
}
@Override
protected void consumeArrayCreationExpressionWithoutInitializer() {
// ArrayCreationWithoutArrayInitializer ::= 'new' PrimitiveType DimWithOrWithOutExprs
// ArrayCreationWithoutArrayInitializer ::= 'new' ClassOrInterfaceType DimWithOrWithOutExprs
super.consumeArrayCreationExpressionWithoutInitializer();
ArrayAllocationExpression alloc = (ArrayAllocationExpression)this.expressionStack[this.expressionPtr];
if (alloc.type == this.assistNode){
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
}
}
@Override
protected void consumeArrayCreationExpressionWithInitializer() {
// ArrayCreationWithArrayInitializer ::= 'new' ClassOrInterfaceType DimWithOrWithOutExprs ArrayInitializer
super.consumeArrayCreationExpressionWithInitializer();
ArrayAllocationExpression alloc = (ArrayAllocationExpression)this.expressionStack[this.expressionPtr];
if (alloc.type == this.assistNode){
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
}
}
@Override
protected void consumeCastExpressionLL1() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionLL1();
}
@Override
protected void consumeCastExpressionLL1WithBounds() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionLL1WithBounds();
}
@Override
protected void consumeCastExpressionWithGenericsArray() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionWithGenericsArray();
}
@Override
protected void consumeCastExpressionWithNameArray() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionWithNameArray();
}
@Override
protected void consumeCastExpressionWithPrimitiveType() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionWithPrimitiveType();
}
@Override
protected void consumeCastExpressionWithQualifiedGenericsArray() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionWithQualifiedGenericsArray();
}
@Override
protected void consumeCatchFormalParameter() {
if (this.indexOfAssistIdentifier() < 0) {
super.consumeCatchFormalParameter();
if((!this.diet || this.dietInt != 0) && this.astPtr > -1) {
Argument argument = (Argument) this.astStack[this.astPtr];
if(argument.type == this.assistNode) {
this.isOrphanCompletionNode = true;
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
}
} else {
this.identifierLengthPtr--;
char[] identifierName = this.identifierStack[this.identifierPtr];
long namePositions = this.identifierPositionStack[this.identifierPtr--];
this.intPtr--; // dimension from the variabledeclaratorid
TypeReference type = (TypeReference) this.astStack[this.astPtr--];
this.astLengthPtr --;
int modifierPositions = this.intStack[this.intPtr--];
this.intPtr--;
Argument arg =
new SelectionOnArgumentName(
identifierName,
namePositions,
type,
this.intStack[this.intPtr + 1] & ~ClassFileConstants.AccDeprecated); // modifiers
arg.bits &= ~ASTNode.IsArgument;
arg.declarationSourceStart = modifierPositions;
// consume annotations
int length;
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
System.arraycopy(
this.expressionStack,
(this.expressionPtr -= length) + 1,
arg.annotations = new Annotation[length],
0,
length);
}
pushOnAstStack(arg);
this.assistNode = arg;
this.lastCheckPoint = (int) namePositions;
this.isOrphanCompletionNode = true;
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
/* if incomplete method header, listLength counter will not have been reset,
indicating that some arguments are available on the stack */
this.listLength++;
}
}
@Override
protected void consumeClassInstanceCreationExpressionQualifiedWithTypeArguments() {
// ClassInstanceCreationExpression ::= Primary '.' 'new' TypeArguments SimpleName '(' ArgumentListopt ')' ClassBodyopt
// ClassInstanceCreationExpression ::= ClassInstanceCreationExpressionName 'new' TypeArguments SimpleName '(' ArgumentListopt ')' ClassBodyopt
QualifiedAllocationExpression alloc;
int length;
if (((length = this.astLengthStack[this.astLengthPtr]) == 1) && (this.astStack[this.astPtr] == null)) {
if (this.indexOfAssistIdentifier() < 0) {
super.consumeClassInstanceCreationExpressionQualifiedWithTypeArguments();
return;
}
//NO ClassBody
this.astPtr--;
this.astLengthPtr--;
alloc = new SelectionOnQualifiedAllocationExpression();
alloc.sourceEnd = this.endPosition; //the position has been stored explicitly
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
this.expressionPtr -= length;
System.arraycopy(
this.expressionStack,
this.expressionPtr + 1,
alloc.arguments = new Expression[length],
0,
length);
}
// trick to avoid creating a selection on type reference
char [] oldIdent = assistIdentifier();
setAssistIdentifier(null);
alloc.type = getTypeReference(0);
checkForDiamond(alloc.type);
setAssistIdentifier(oldIdent);
length = this.genericsLengthStack[this.genericsLengthPtr--];
this.genericsPtr -= length;
System.arraycopy(this.genericsStack, this.genericsPtr + 1, alloc.typeArguments = new TypeReference[length], 0, length);
this.intPtr--; // remove the position of the '<'
//the default constructor with the correct number of argument
//will be created and added by the TC (see createsInternalConstructorWithBinding)
alloc.sourceStart = this.intStack[this.intPtr--];
pushOnExpressionStack(alloc);
this.assistNode = alloc;
this.lastCheckPoint = alloc.sourceEnd + 1;
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
} else {
super.consumeClassInstanceCreationExpressionQualifiedWithTypeArguments();
}
this.expressionLengthPtr--;
QualifiedAllocationExpression qae =
(QualifiedAllocationExpression) this.expressionStack[this.expressionPtr--];
qae.enclosingInstance = this.expressionStack[this.expressionPtr];
this.expressionStack[this.expressionPtr] = qae;
qae.sourceStart = qae.enclosingInstance.sourceStart;
}
@Override
protected void consumeClassInstanceCreationExpressionWithTypeArguments() {
// ClassInstanceCreationExpression ::= 'new' TypeArguments ClassType '(' ArgumentListopt ')' ClassBodyopt
AllocationExpression alloc;
int length;
if (((length = this.astLengthStack[this.astLengthPtr]) == 1)
&& (this.astStack[this.astPtr] == null)) {
if (this.indexOfAssistIdentifier() < 0) {
super.consumeClassInstanceCreationExpressionWithTypeArguments();
return;
}
//NO ClassBody
this.astPtr--;
this.astLengthPtr--;
alloc = new SelectionOnQualifiedAllocationExpression();
alloc.sourceEnd = this.endPosition; //the position has been stored explicitly
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
this.expressionPtr -= length;
System.arraycopy(
this.expressionStack,
this.expressionPtr + 1,
alloc.arguments = new Expression[length],
0,
length);
}
// trick to avoid creating a selection on type reference
char [] oldIdent = assistIdentifier();
setAssistIdentifier(null);
alloc.type = getTypeReference(0);
checkForDiamond(alloc.type);
setAssistIdentifier(oldIdent);
length = this.genericsLengthStack[this.genericsLengthPtr--];
this.genericsPtr -= length;
System.arraycopy(this.genericsStack, this.genericsPtr + 1, alloc.typeArguments = new TypeReference[length], 0, length);
this.intPtr--; // remove the position of the '<'
//the default constructor with the correct number of argument
//will be created and added by the TC (see createsInternalConstructorWithBinding)
alloc.sourceStart = this.intStack[this.intPtr--];
pushOnExpressionStack(alloc);
this.assistNode = alloc;
this.lastCheckPoint = alloc.sourceEnd + 1;
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
} else {
super.consumeClassInstanceCreationExpressionWithTypeArguments();
}
}
@Override
protected void consumeEnterAnonymousClassBody(boolean qualified) {
// EnterAnonymousClassBody ::= $empty
if (this.indexOfAssistIdentifier() < 0) {
super.consumeEnterAnonymousClassBody(qualified);
return;
}
// trick to avoid creating a selection on type reference
char [] oldIdent = assistIdentifier();
setAssistIdentifier(null);
TypeReference typeReference = getTypeReference(0);
setAssistIdentifier(oldIdent);
TypeDeclaration anonymousType = new TypeDeclaration(this.compilationUnit.compilationResult);
anonymousType.name = CharOperation.NO_CHAR;
anonymousType.bits |= (ASTNode.IsAnonymousType|ASTNode.IsLocalType);
QualifiedAllocationExpression alloc = new SelectionOnQualifiedAllocationExpression(anonymousType);
markEnclosingMemberWithLocalType();
pushOnAstStack(anonymousType);
alloc.sourceEnd = this.rParenPos; //the position has been stored explicitly
int argumentLength;
if ((argumentLength = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
this.expressionPtr -= argumentLength;
System.arraycopy(
this.expressionStack,
this.expressionPtr + 1,
alloc.arguments = new Expression[argumentLength],
0,
argumentLength);
}
if (qualified) {
this.expressionLengthPtr--;
alloc.enclosingInstance = this.expressionStack[this.expressionPtr--];
}
alloc.type = typeReference;
anonymousType.sourceEnd = alloc.sourceEnd;
//position at the type while it impacts the anonymous declaration
anonymousType.sourceStart = anonymousType.declarationSourceStart = alloc.type.sourceStart;
alloc.sourceStart = this.intStack[this.intPtr--];
pushOnExpressionStack(alloc);
this.assistNode = alloc;
this.lastCheckPoint = alloc.sourceEnd + 1;
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
if (isIndirectlyInsideLambdaExpression())
this.ignoreNextOpeningBrace = true;
else
this.currentToken = 0; // opening brace already taken into account.
this.hasReportedError = true;
}
anonymousType.bodyStart = this.scanner.currentPosition;
this.listLength = 0; // will be updated when reading super-interfaces
// recovery
if (this.currentElement != null){
this.lastCheckPoint = anonymousType.bodyStart;
this.currentElement = this.currentElement.add(anonymousType, 0);
if (isIndirectlyInsideLambdaExpression())
this.ignoreNextOpeningBrace = true;
else
this.currentToken = 0; // opening brace already taken into account.
this.lastIgnoredToken = -1;
}
}
@Override
protected void consumeEnterVariable() {
// EnterVariable ::= $empty
// do nothing by default
super.consumeEnterVariable();
AbstractVariableDeclaration variable = (AbstractVariableDeclaration) this.astStack[this.astPtr];
if (variable.type == this.assistNode){
if (!this.diet && ! variable.type.isTypeNameVar(null)) {
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = false; // already attached inside variable decl
}
}
@Override
protected void consumeExitVariableWithInitialization() {
super.consumeExitVariableWithInitialization();
// does not keep the initialization if selection is not inside
AbstractVariableDeclaration variable = (AbstractVariableDeclaration) this.astStack[this.astPtr];
int start = variable.declarationSourceStart;
int end = variable.declarationSourceEnd;
// Keep the initialization intact, because that's the only way we are going to know the type
if (!variable.type.isTypeNameVar(null)) {
if ((this.selectionStart < start) && (this.selectionEnd < start) ||
(this.selectionStart > end) && (this.selectionEnd > end)) {
variable.initialization = null;
}
}
triggerRecoveryUponLambdaClosure(variable, false);
}
@Override
protected void consumeFieldAccess(boolean isSuperAccess) {
// FieldAccess ::= Primary '.' 'Identifier'
// FieldAccess ::= 'super' '.' 'Identifier'
if (this.indexOfAssistIdentifier() < 0) {
super.consumeFieldAccess(isSuperAccess);
return;
}
FieldReference fieldReference =
new SelectionOnFieldReference(
this.identifierStack[this.identifierPtr],
this.identifierPositionStack[this.identifierPtr--]);
this.identifierLengthPtr--;
if (isSuperAccess) { //considerates the fieldReferenceerence beginning at the 'super' ....
fieldReference.sourceStart = this.intStack[this.intPtr--];
fieldReference.receiver = new SuperReference(fieldReference.sourceStart, this.endPosition);
pushOnExpressionStack(fieldReference);
} else { //optimize push/pop
if ((fieldReference.receiver = this.expressionStack[this.expressionPtr]).isThis()) { //fieldReferenceerence begins at the this
fieldReference.sourceStart = fieldReference.receiver.sourceStart;
}
this.expressionStack[this.expressionPtr] = fieldReference;
}
this.assistNode = fieldReference;
this.lastCheckPoint = fieldReference.sourceEnd + 1;
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
}
@Override
protected void consumeFormalParameter(boolean isVarArgs) {
if (this.indexOfAssistIdentifier() < 0) {
super.consumeFormalParameter(isVarArgs);
} else {
boolean isReceiver = this.intStack[this.intPtr--] == 0;
if (isReceiver) {
this.expressionPtr--;
this.expressionLengthPtr --;
}
this.identifierLengthPtr--;
char[] identifierName = this.identifierStack[this.identifierPtr];
long namePositions = this.identifierPositionStack[this.identifierPtr--];
int extendedDimensions = this.intStack[this.intPtr--];
Annotation [][] annotationsOnExtendedDimensions = extendedDimensions == 0 ? null : getAnnotationsOnDimensions(extendedDimensions);
Annotation [] varArgsAnnotations = null;
int length;
int endOfEllipsis = 0;
if (isVarArgs) {
endOfEllipsis = this.intStack[this.intPtr--];
if ((length = this.typeAnnotationLengthStack[this.typeAnnotationLengthPtr--]) != 0) {
System.arraycopy(
this.typeAnnotationStack,
(this.typeAnnotationPtr -= length) + 1,
varArgsAnnotations = new Annotation[length],
0,
length);
}
}
int firstDimensions = this.intStack[this.intPtr--];
TypeReference type = getTypeReference(firstDimensions);
if (isVarArgs || extendedDimensions != 0) {
if (isVarArgs) {
type = augmentTypeWithAdditionalDimensions(type, 1, varArgsAnnotations != null ? new Annotation[][] { varArgsAnnotations } : null, true);
}
if (extendedDimensions != 0) { // combination illegal.
type = augmentTypeWithAdditionalDimensions(type, extendedDimensions, annotationsOnExtendedDimensions, false);
}
type.sourceEnd = type.isParameterizedTypeReference() ? this.endStatementPosition : this.endPosition;
}
if (isVarArgs) {
if (extendedDimensions == 0) {
type.sourceEnd = endOfEllipsis;
}
type.bits |= ASTNode.IsVarArgs; // set isVarArgs
}
int modifierPositions = this.intStack[this.intPtr--];
this.intPtr--;
Argument arg =
new SelectionOnArgumentName(
identifierName,
namePositions,
type,
this.intStack[this.intPtr + 1] & ~ClassFileConstants.AccDeprecated); // modifiers
arg.declarationSourceStart = modifierPositions;
// consume annotations
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
System.arraycopy(
this.expressionStack,
(this.expressionPtr -= length) + 1,
arg.annotations = new Annotation[length],
0,
length);
RecoveredType currentRecoveryType = this.currentRecoveryType();
if (currentRecoveryType != null)
currentRecoveryType.annotationsConsumed(arg.annotations);
}
pushOnAstStack(arg);
this.assistNode = arg;
this.lastCheckPoint = (int) namePositions;
this.isOrphanCompletionNode = true;
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
/* if incomplete method header, listLength counter will not have been reset,
indicating that some arguments are available on the stack */
this.listLength++;
}
}
@Override
protected void consumeInsideCastExpression() {
super.consumeInsideCastExpression();
pushOnElementStack(K_CAST_STATEMENT);
}
@Override
protected void consumeInsideCastExpressionLL1() {
super.consumeInsideCastExpressionLL1();
pushOnElementStack(K_CAST_STATEMENT);
}
@Override
protected void consumeInsideCastExpressionLL1WithBounds() {
super.consumeInsideCastExpressionLL1WithBounds();
pushOnElementStack(K_CAST_STATEMENT);
}
@Override
protected void consumeInsideCastExpressionWithQualifiedGenerics() {
super.consumeInsideCastExpressionWithQualifiedGenerics();
pushOnElementStack(K_CAST_STATEMENT);
}
@Override
protected void consumeInstanceOfExpression() {
if (indexOfAssistIdentifier() < 0) {
super.consumeInstanceOfExpression();
int length = this.expressionLengthPtr >= 0 ?
this.expressionLengthStack[this.expressionLengthPtr] : 0;
if (length > 0) {
Expression exp = this.expressionStack[this.expressionPtr];
LocalDeclaration local = null;
if (exp instanceof InstanceOfExpression) {
local = ((InstanceOfExpression) exp).elementVariable;
} else if (exp instanceof AND_AND_Expression) {
InstanceOfExpression insExpr = (InstanceOfExpression) ((AND_AND_Expression) exp).left;
local = insExpr.elementVariable;
}
if (local != null) {
pushOnAstStack(local);
if (!this.diet) {
this.restartRecovery = true;
this.lastIgnoredToken = -1;
}
}
}
} else {
getTypeReference(this.intStack[this.intPtr--]);
this.isOrphanCompletionNode = true;
this.restartRecovery = true;
this.lastIgnoredToken = -1;
}
}
@Override
protected void consumeInstanceOfExpressionWithName() {
int length = this.patternLengthPtr >= 0 ?
this.patternLengthStack[this.patternLengthPtr--] : 0;
if (length > 0) {
Pattern pattern = (Pattern) this.patternStack[this.patternPtr--];
pushOnExpressionStack(getUnspecifiedReferenceOptimized());
if (this.expressionStack[this.expressionPtr] != this.assistNode) {
// Push only when the selection node is not the expression of this
// pattern matching instanceof expression
LocalDeclaration patternVariableIntroduced = pattern.getPatternVariableIntroduced();
if (patternVariableIntroduced != null) {
// filter out patternVariableIntroduced based on current selection if there is an assist node
if (this.assistNode == null || (this.selectionStart <= patternVariableIntroduced.sourceStart
&& this.selectionEnd >= patternVariableIntroduced.sourceEnd)) {
pushOnAstStack(patternVariableIntroduced);
}
}
if ((this.selectionStart >= pattern.sourceStart)
&& (this.selectionEnd <= pattern.sourceEnd)) {
this.restartRecovery = true;
this.lastIgnoredToken = -1;
}
} else if (indexOfAssistIdentifier() >= 0) {
this.isOrphanCompletionNode = true;
this.restartRecovery = true;
this.lastIgnoredToken = -1;
}
} else if (indexOfAssistIdentifier() < 0) {
super.consumeInstanceOfExpressionWithName();
} else {
getTypeReference(this.intStack[this.intPtr--]);
this.isOrphanCompletionNode = true;
this.restartRecovery = true;
this.lastIgnoredToken = -1;
}
}
@Override
protected void consumeLambdaExpression() {
super.consumeLambdaExpression();
LambdaExpression expression = (LambdaExpression) this.expressionStack[this.expressionPtr];
int arrowEnd = expression.arrowPosition();
int arrowStart = arrowEnd - 1;
if (this.selectionStart == arrowStart || this.selectionStart == arrowEnd) {
if (this.selectionEnd == arrowStart || this.selectionEnd == arrowEnd) {
this.expressionStack[this.expressionPtr] = new SelectionOnLambdaExpression(expression);
}
} else if (this.selectionStart == expression.sourceStart && this.selectionEnd == expression.sourceEnd) {
SelectionOnLambdaExpression lambdaExpression = new SelectionOnLambdaExpression(expression);
this.expressionStack[this.expressionPtr] = lambdaExpression;
this.assistNode = lambdaExpression;
this.lastCheckPoint = lambdaExpression.sourceEnd + 1;
}
if (!(this.selectionStart >= expression.sourceStart && this.selectionEnd <= expression.sourceEnd))
popElement(K_LAMBDA_EXPRESSION_DELIMITER);
}
@Override
protected void consumeReferenceExpression(ReferenceExpression referenceExpression) {
int kolonKolonStart = this.colonColonStart;
int kolonKolonEnd = kolonKolonStart + 1;
this.colonColonStart = -1;
if (this.selectionStart == kolonKolonStart || this.selectionStart == kolonKolonEnd) {
if (this.selectionEnd == kolonKolonStart || this.selectionEnd == kolonKolonEnd) {
referenceExpression = new SelectionOnReferenceExpression(referenceExpression, this.scanner);
}
}
super.consumeReferenceExpression(referenceExpression);
}
@Override
protected void consumeLocalVariableDeclarationStatement() {
super.consumeLocalVariableDeclarationStatement();
// force to restart in recovery mode if the declaration contains the selection
if (!this.diet && this.astStack[this.astPtr] instanceof LocalDeclaration) {
LocalDeclaration localDeclaration = (LocalDeclaration) this.astStack[this.astPtr];
if ((this.selectionStart >= localDeclaration.sourceStart)
&& (this.selectionEnd <= localDeclaration.sourceEnd)) {
this.restartRecovery = true;
this.lastIgnoredToken = -1;
}
}
checkRestartRecovery();
}
@Override
protected void consumeAssignment() {
super.consumeAssignment();
checkRestartRecovery();
}
@Override
protected void consumeBlockStatement() {
super.consumeBlockStatement();
checkRestartRecovery();
}
protected void checkRestartRecovery() {
if (this.selectionNodeFoundLevel > 0) {
if (--this.selectionNodeFoundLevel == 0)
this.restartRecovery = true;
}
}
@Override
protected void consumeOpenBlock() {
super.consumeOpenBlock();
if (this.selectionNodeFoundLevel > 0)
this.selectionNodeFoundLevel++;
}
@Override
protected void consumeBlock() {
super.consumeBlock();
if (this.selectionNodeFoundLevel > 0)
this.selectionNodeFoundLevel--;
}
@Override
protected void consumeMarkerAnnotation(boolean isTypeAnnotation) {
int index;
if ((index = this.indexOfAssistIdentifier()) < 0) {
super.consumeMarkerAnnotation(isTypeAnnotation);
return;
}
MarkerAnnotation markerAnnotation = null;
int length = this.identifierLengthStack[this.identifierLengthPtr];
TypeReference typeReference;
/* retrieve identifiers subset and whole positions, the assist node positions
should include the entire replaced source. */
char[][] subset = identifierSubSet(index);
this.identifierLengthPtr--;
this.identifierPtr -= length;
long[] positions = new long[length];
System.arraycopy(
this.identifierPositionStack,
this.identifierPtr + 1,
positions,
0,
length);
/* build specific assist on type reference */
if (index == 0) {
/* assist inside first identifier */
typeReference = createSingleAssistTypeReference(
assistIdentifier(),
positions[0]);
} else {