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org.eclipse.jdt.internal.codeassist.select.SelectionParser Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
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.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.ImportReference;
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.NameReference;
import org.eclipse.jdt.internal.compiler.ast.NormalAnnotation;
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.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_COLON = 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
private boolean selectionNodeFound;
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;
}
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) {
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
}
}
}
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_COLON :
if(this.expressionPtr > 0) {
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;
}
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;
}
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);
}
}
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;
}
}
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;
}
}
protected void consumeCastExpressionLL1() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionLL1();
}
protected void consumeCastExpressionLL1WithBounds() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionLL1WithBounds();
}
protected void consumeCastExpressionWithGenericsArray() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionWithGenericsArray();
}
protected void consumeCastExpressionWithNameArray() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionWithNameArray();
}
protected void consumeCastExpressionWithPrimitiveType() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionWithPrimitiveType();
}
protected void consumeCastExpressionWithQualifiedGenericsArray() {
popElement(K_CAST_STATEMENT);
super.consumeCastExpressionWithQualifiedGenericsArray();
}
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++;
}
}
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;
}
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();
}
}
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;
}
}
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){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = false; // already attached inside variable decl
}
}
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.initialization.sourceStart;
int end = variable.initialization.sourceEnd;
if ((this.selectionStart < start) && (this.selectionEnd < start) ||
(this.selectionStart > end) && (this.selectionEnd > end)) {
variable.initialization = null;
}
triggerRecoveryUponLambdaClosure(variable, false);
}
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;
}
protected void consumeFormalParameter(boolean isVarArgs) {
if (this.indexOfAssistIdentifier() < 0) {
super.consumeFormalParameter(isVarArgs);
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 {
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++;
}
}
protected void consumeInsideCastExpression() {
super.consumeInsideCastExpression();
pushOnElementStack(K_CAST_STATEMENT);
}
protected void consumeInsideCastExpressionLL1() {
super.consumeInsideCastExpressionLL1();
pushOnElementStack(K_CAST_STATEMENT);
}
protected void consumeInsideCastExpressionLL1WithBounds() {
super.consumeInsideCastExpressionLL1WithBounds();
pushOnElementStack(K_CAST_STATEMENT);
}
protected void consumeInsideCastExpressionWithQualifiedGenerics() {
super.consumeInsideCastExpressionWithQualifiedGenerics();
pushOnElementStack(K_CAST_STATEMENT);
}
protected void consumeInstanceOfExpression() {
if (indexOfAssistIdentifier() < 0) {
super.consumeInstanceOfExpression();
} else {
getTypeReference(this.intStack[this.intPtr--]);
this.isOrphanCompletionNode = true;
this.restartRecovery = true;
this.lastIgnoredToken = -1;
}
}
protected void consumeInstanceOfExpressionWithName() {
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);
}
}
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);
}
}
super.consumeReferenceExpression(referenceExpression);
}
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;
}
}
if (this.selectionNodeFound) {
this.restartRecovery = true;
}
}
protected void consumeAssignment() {
super.consumeAssignment();
if (this.selectionNodeFound) {
this.restartRecovery = true;
}
}
protected void consumeBlockStatement() {
super.consumeBlockStatement();
if (this.selectionNodeFound) {
this.restartRecovery = true;
}
}
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 {
/* assist inside subsequent identifier */
typeReference = createQualifiedAssistTypeReference(
subset,
assistIdentifier(),
positions);
}
this.assistNode = typeReference;
this.lastCheckPoint = typeReference.sourceEnd + 1;
markerAnnotation = new MarkerAnnotation(typeReference, this.intStack[this.intPtr--]);
markerAnnotation.declarationSourceEnd = markerAnnotation.sourceEnd;
if (isTypeAnnotation) {
pushOnTypeAnnotationStack(markerAnnotation);
} else {
pushOnExpressionStack(markerAnnotation);
}
}
protected void consumeMemberValuePair() {
if (this.indexOfAssistIdentifier() < 0) {
super.consumeMemberValuePair();
return;
}
char[] simpleName = this.identifierStack[this.identifierPtr];
long position = this.identifierPositionStack[this.identifierPtr--];
this.identifierLengthPtr--;
int end = (int) position;
int start = (int) (position >>> 32);
Expression value = this.expressionStack[this.expressionPtr--];
this.expressionLengthPtr--;
MemberValuePair memberValuePair = new SelectionOnNameOfMemberValuePair(simpleName, start, end, value);
pushOnAstStack(memberValuePair);
this.assistNode = memberValuePair;
this.lastCheckPoint = memberValuePair.sourceEnd + 1;
}
protected void consumeMethodInvocationName() {
// MethodInvocation ::= Name '(' ArgumentListopt ')'
// when the name is only an identifier...we have a message send to "this" (implicit)
char[] selector = this.identifierStack[this.identifierPtr];
int accessMode;
if(selector == assistIdentifier()) {
if(CharOperation.equals(selector, SUPER)) {
accessMode = ExplicitConstructorCall.Super;
} else if(CharOperation.equals(selector, THIS)) {
accessMode = ExplicitConstructorCall.This;
} else {
super.consumeMethodInvocationName();
return;
}
} else {
super.consumeMethodInvocationName();
if (requireExtendedRecovery()) {
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=430572, compensate for the hacks elsewhere where super/this gets treated as identifier. See getUnspecifiedReference
if (this.astPtr >= 0 && this.astStack[this.astPtr] == this.assistNode && this.assistNode instanceof ThisReference) {
MessageSend messageSend = (MessageSend) this.expressionStack[this.expressionPtr];
if (messageSend.receiver instanceof SingleNameReference) {
SingleNameReference snr = (SingleNameReference) messageSend.receiver;
if (snr.token == CharOperation.NO_CHAR) { // dummy reference created by getUnspecifiedReference ???
messageSend.receiver = (Expression) this.astStack[this.astPtr--];
}
}
}
}
return;
}
final ExplicitConstructorCall constructorCall = new SelectionOnExplicitConstructorCall(accessMode);
constructorCall.sourceEnd = this.rParenPos;
constructorCall.sourceStart = (int) (this.identifierPositionStack[this.identifierPtr] >>> 32);
int length;
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
this.expressionPtr -= length;
System.arraycopy(this.expressionStack, this.expressionPtr + 1, constructorCall.arguments = new Expression[length], 0, length);
}
if (!this.diet){
pushOnAstStack(constructorCall);
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
} else {
pushOnExpressionStack(new Expression(){
public TypeBinding resolveType(BlockScope scope) {
constructorCall.resolve(scope);
return null;
}
public StringBuffer printExpression(int indent, StringBuffer output) {
return output;
}
});
}
this.assistNode = constructorCall;
this.lastCheckPoint = constructorCall.sourceEnd + 1;
this.isOrphanCompletionNode = true;
}
protected void consumeMethodInvocationPrimary() {
//optimize the push/pop
//MethodInvocation ::= Primary '.' 'Identifier' '(' ArgumentListopt ')'
char[] selector = this.identifierStack[this.identifierPtr];
int accessMode;
if(selector == assistIdentifier()) {
if(CharOperation.equals(selector, SUPER)) {
accessMode = ExplicitConstructorCall.Super;
} else if(CharOperation.equals(selector, THIS)) {
accessMode = ExplicitConstructorCall.This;
} else {
super.consumeMethodInvocationPrimary();
return;
}
} else {
super.consumeMethodInvocationPrimary();
return;
}
final ExplicitConstructorCall constructorCall = new SelectionOnExplicitConstructorCall(accessMode);
constructorCall.sourceEnd = this.rParenPos;
int length;
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
this.expressionPtr -= length;
System.arraycopy(this.expressionStack, this.expressionPtr + 1, constructorCall.arguments = new Expression[length], 0, length);
}
constructorCall.qualification = this.expressionStack[this.expressionPtr--];
constructorCall.sourceStart = constructorCall.qualification.sourceStart;
if (!this.diet){
pushOnAstStack(constructorCall);
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
} else {
pushOnExpressionStack(new Expression(){
public TypeBinding resolveType(BlockScope scope) {
constructorCall.resolve(scope);
return null;
}
public StringBuffer printExpression(int indent, StringBuffer output) {
return output;
}
});
}
this.assistNode = constructorCall;
this.lastCheckPoint = constructorCall.sourceEnd + 1;
this.isOrphanCompletionNode = true;
}
protected void consumeNormalAnnotation(boolean isTypeAnnotation) {
int index;
if ((index = this.indexOfAssistIdentifier()) < 0) {
super.consumeNormalAnnotation(isTypeAnnotation);
return;
}
NormalAnnotation normalAnnotation = 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 {
/* assist inside subsequent identifier */
typeReference = createQualifiedAssistTypeReference(
subset,
assistIdentifier(),
positions);
}
this.assistNode = typeReference;
this.lastCheckPoint = typeReference.sourceEnd + 1;
normalAnnotation = new NormalAnnotation(typeReference, this.intStack[this.intPtr--]);
if ((length = this.astLengthStack[this.astLengthPtr--]) != 0) {
System.arraycopy(
this.astStack,
(this.astPtr -= length) + 1,
normalAnnotation.memberValuePairs = new MemberValuePair[length],
0,
length);
}
normalAnnotation.declarationSourceEnd = this.rParenPos;
if (isTypeAnnotation) {
pushOnTypeAnnotationStack(normalAnnotation);
} else {
pushOnExpressionStack(normalAnnotation);
}
}
protected void consumeSingleMemberAnnotation(boolean isTypeAnnotation) {
int index;
if ((index = this.indexOfAssistIdentifier()) < 0) {
super.consumeSingleMemberAnnotation(isTypeAnnotation);
return;
}
SingleMemberAnnotation singleMemberAnnotation = 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 {
/* assist inside subsequent identifier */
typeReference = createQualifiedAssistTypeReference(
subset,
assistIdentifier(),
positions);
}
this.assistNode = typeReference;
this.lastCheckPoint = typeReference.sourceEnd + 1;
singleMemberAnnotation = new SingleMemberAnnotation(typeReference, this.intStack[this.intPtr--]);
singleMemberAnnotation.memberValue = this.expressionStack[this.expressionPtr--];
this.expressionLengthPtr--;
singleMemberAnnotation.declarationSourceEnd = this.rParenPos;
if (isTypeAnnotation) {
pushOnTypeAnnotationStack(singleMemberAnnotation);
} else {
pushOnExpressionStack(singleMemberAnnotation);
}
}
protected void consumeStaticImportOnDemandDeclarationName() {
// TypeImportOnDemandDeclarationName ::= 'import' 'static' Name '.' '*'
/* push an ImportRef build from the last name
stored in the identifier stack. */
int index;
/* no need to take action if not inside assist identifiers */
if ((index = indexOfAssistIdentifier()) < 0) {
super.consumeStaticImportOnDemandDeclarationName();
return;
}
/* retrieve identifiers subset and whole positions, the assist node positions
should include the entire replaced source. */
int length = this.identifierLengthStack[this.identifierLengthPtr];
char[][] subset = identifierSubSet(index+1); // include the assistIdentifier
this.identifierLengthPtr--;
this.identifierPtr -= length;
long[] positions = new long[length];
System.arraycopy(
this.identifierPositionStack,
this.identifierPtr + 1,
positions,
0,
length);
/* build specific assist node on import statement */
ImportReference reference = createAssistImportReference(subset, positions, ClassFileConstants.AccStatic);
reference.bits |= ASTNode.OnDemand;
// star end position
reference.trailingStarPosition = this.intStack[this.intPtr--];
this.assistNode = reference;
this.lastCheckPoint = reference.sourceEnd + 1;
pushOnAstStack(reference);
if (this.currentToken == TokenNameSEMICOLON){
reference.declarationSourceEnd = this.scanner.currentPosition - 1;
} else {
reference.declarationSourceEnd = (int) positions[length-1];
}
//endPosition is just before the ;
reference.declarationSourceStart = this.intStack[this.intPtr--];
// flush annotations defined prior to import statements
reference.declarationSourceEnd = flushCommentsDefinedPriorTo(reference.declarationSourceEnd);
// recovery
if (this.currentElement != null){
this.lastCheckPoint = reference.declarationSourceEnd+1;
this.currentElement = this.currentElement.add(reference, 0);
this.lastIgnoredToken = -1;
this.restartRecovery = true; // used to avoid branching back into the regular automaton
}
}
protected void consumeToken(int token) {
super.consumeToken(token);
// if in a method or if in a field initializer
if (isInsideMethod() || isInsideFieldInitialization()) {
switch (token) {
case TokenNamecase :
pushOnElementStack(K_BETWEEN_CASE_AND_COLON);
break;
case TokenNameCOLON:
if(topKnownElementKind(SELECTION_OR_ASSIST_PARSER) == K_BETWEEN_CASE_AND_COLON) {
popElement(K_BETWEEN_CASE_AND_COLON);
}
break;
case TokenNamereturn:
pushOnElementStack(K_INSIDE_RETURN_STATEMENT, this.bracketDepth);
break;
case TokenNameSEMICOLON:
switch(topKnownElementKind(SELECTION_OR_ASSIST_PARSER)) {
case K_INSIDE_RETURN_STATEMENT :
if(topKnownElementInfo(SELECTION_OR_ASSIST_PARSER) == this.bracketDepth) {
popElement(K_INSIDE_RETURN_STATEMENT);
}
break;
}
break;
}
}
}
protected void consumeTypeImportOnDemandDeclarationName() {
// TypeImportOnDemandDeclarationName ::= 'import' Name '.' '*'
/* push an ImportRef build from the last name
stored in the identifier stack. */
int index;
/* no need to take action if not inside assist identifiers */
if ((index = indexOfAssistIdentifier()) < 0) {
super.consumeTypeImportOnDemandDeclarationName();
return;
}
/* retrieve identifiers subset and whole positions, the assist node positions
should include the entire replaced source. */
int length = this.identifierLengthStack[this.identifierLengthPtr];
char[][] subset = identifierSubSet(index+1); // include the assistIdentifier
this.identifierLengthPtr--;
this.identifierPtr -= length;
long[] positions = new long[length];
System.arraycopy(
this.identifierPositionStack,
this.identifierPtr + 1,
positions,
0,
length);
/* build specific assist node on import statement */
ImportReference reference = createAssistImportReference(subset, positions, ClassFileConstants.AccDefault);
reference.bits |= ASTNode.OnDemand;
// star end position
reference.trailingStarPosition = this.intStack[this.intPtr--];
this.assistNode = reference;
this.lastCheckPoint = reference.sourceEnd + 1;
pushOnAstStack(reference);
if (this.currentToken == TokenNameSEMICOLON){
reference.declarationSourceEnd = this.scanner.currentPosition - 1;
} else {
reference.declarationSourceEnd = (int) positions[length-1];
}
//endPosition is just before the ;
reference.declarationSourceStart = this.intStack[this.intPtr--];
// flush comments defined prior to import statements
reference.declarationSourceEnd = flushCommentsDefinedPriorTo(reference.declarationSourceEnd);
// recovery
if (this.currentElement != null){
this.lastCheckPoint = reference.declarationSourceEnd+1;
this.currentElement = this.currentElement.add(reference, 0);
this.lastIgnoredToken = -1;
this.restartRecovery = true; // used to avoid branching back into the regular automaton
}
}
protected SelectionParser createSnapShotParser() {
return new SelectionParser(this.problemReporter);
}
public ImportReference createAssistImportReference(char[][] tokens, long[] positions, int mod){
return new SelectionOnImportReference(tokens, positions, mod);
}
public ImportReference createAssistPackageReference(char[][] tokens, long[] positions){
return new SelectionOnPackageReference(tokens, positions);
}
protected JavadocParser createJavadocParser() {
return new SelectionJavadocParser(this);
}
protected LocalDeclaration createLocalDeclaration(char[] assistName,int sourceStart,int sourceEnd) {
if (this.indexOfAssistIdentifier() < 0) {
return super.createLocalDeclaration(assistName, sourceStart, sourceEnd);
} else {
SelectionOnLocalName local = new SelectionOnLocalName(assistName, sourceStart, sourceEnd);
this.assistNode = local;
this.lastCheckPoint = sourceEnd + 1;
return local;
}
}
public NameReference createQualifiedAssistNameReference(char[][] previousIdentifiers, char[] assistName, long[] positions){
return new SelectionOnQualifiedNameReference(
previousIdentifiers,
assistName,
positions);
}
public TypeReference createQualifiedAssistTypeReference(char[][] previousIdentifiers, char[] assistName, long[] positions){
return new SelectionOnQualifiedTypeReference(
previousIdentifiers,
assistName,
positions);
}
public TypeReference createParameterizedQualifiedAssistTypeReference(
char[][] tokens, TypeReference[][] typeArguments, char[] assistname, TypeReference[] assistTypeArguments, long[] positions) {
return new SelectionOnParameterizedQualifiedTypeReference(tokens, assistname, typeArguments, assistTypeArguments, positions);
}
public NameReference createSingleAssistNameReference(char[] assistName, long position) {
return new SelectionOnSingleNameReference(assistName, position);
}
public TypeReference createSingleAssistTypeReference(char[] assistName, long position) {
return new SelectionOnSingleTypeReference(assistName, position);
}
public TypeReference createParameterizedSingleAssistTypeReference(TypeReference[] typeArguments, char[] assistName, long position) {
return new SelectionOnParameterizedSingleTypeReference(assistName, typeArguments, position);
}
public CompilationUnitDeclaration dietParse(ICompilationUnit sourceUnit, CompilationResult compilationResult, int start, int end) {
this.selectionStart = start;
this.selectionEnd = end;
SelectionScanner selectionScanner = (SelectionScanner)this.scanner;
selectionScanner.selectionIdentifier = null;
selectionScanner.selectionStart = start;
selectionScanner.selectionEnd = end;
return this.dietParse(sourceUnit, compilationResult);
}
protected NameReference getUnspecifiedReference(boolean rejectTypeAnnotations) {
/* build a (unspecified) NameReference which may be qualified*/
int completionIndex;
/* no need to take action if not inside completed identifiers */
if ((completionIndex = indexOfAssistIdentifier()) < 0) {
return super.getUnspecifiedReference(rejectTypeAnnotations);
}
if (rejectTypeAnnotations) {
consumeNonTypeUseName();
}
int length = this.identifierLengthStack[this.identifierLengthPtr];
if (CharOperation.equals(assistIdentifier(), SUPER)){
Reference reference;
if (completionIndex > 0){ // qualified super
// discard 'super' from identifier stacks
// There is some voodoo going on here in combination with SelectionScanne#scanIdentifierOrKeyword, do in Rome as Romans do and leave the stacks at the right depth.
this.identifierLengthStack[this.identifierLengthPtr] = completionIndex;
int ptr = this.identifierPtr -= (length - completionIndex);
pushOnGenericsLengthStack(0);
pushOnGenericsIdentifiersLengthStack(this.identifierLengthStack[this.identifierLengthPtr]);
for (int i = 0; i < completionIndex; i++) {
pushOnTypeAnnotationLengthStack(0);
}
reference =
new SelectionOnQualifiedSuperReference(
getTypeReference(0),
(int)(this.identifierPositionStack[ptr+1] >>> 32),
(int) this.identifierPositionStack[ptr+1]);
} else { // standard super
this.identifierPtr -= length;
this.identifierLengthPtr--;
reference = new SelectionOnSuperReference((int)(this.identifierPositionStack[this.identifierPtr+1] >>> 32), (int) this.identifierPositionStack[this.identifierPtr+1]);
}
pushOnAstStack(reference);
this.assistNode = reference;
this.lastCheckPoint = reference.sourceEnd + 1;
if (!this.diet || this.dietInt != 0){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
return new SingleNameReference(CharOperation.NO_CHAR, 0); // dummy reference
}
NameReference nameReference;
/* retrieve identifiers subset and whole positions, the completion node positions
should include the entire replaced source. */
char[][] subset = identifierSubSet(completionIndex);
this.identifierLengthPtr--;
this.identifierPtr -= length;
long[] positions = new long[length];
System.arraycopy(
this.identifierPositionStack,
this.identifierPtr + 1,
positions,
0,
length);
/* build specific completion on name reference */
if (completionIndex == 0) {
/* completion inside first identifier */
nameReference = createSingleAssistNameReference(assistIdentifier(), positions[0]);
} else {
/* completion inside subsequent identifier */
nameReference = createQualifiedAssistNameReference(subset, assistIdentifier(), positions);
}
this.assistNode = nameReference;
this.lastCheckPoint = nameReference.sourceEnd + 1;
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
return nameReference;
}
/*
* Copy of code from superclass with the following change:
* In the case of qualified name reference if the cursor location is on the
* qualified name reference, then create a CompletionOnQualifiedNameReference
* instead.
*/
protected NameReference getUnspecifiedReferenceOptimized() {
int index = indexOfAssistIdentifier();
NameReference reference = super.getUnspecifiedReferenceOptimized();
if (index >= 0){
if (!this.diet){
this.restartRecovery = true; // force to restart in recovery mode
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
}
return reference;
}
public void initializeScanner(){
this.scanner = new SelectionScanner(this.options.sourceLevel);
}
public ReferenceExpression newReferenceExpression() {
char[] selector = this.identifierStack[this.identifierPtr];
if (selector != assistIdentifier()){
return super.newReferenceExpression();
}
ReferenceExpression referenceExpression = new SelectionOnReferenceExpressionName();
this.assistNode = referenceExpression;
return referenceExpression;
}
protected MessageSend newMessageSend() {
// '(' ArgumentListopt ')'
// the arguments are on the expression stack
char[] selector = this.identifierStack[this.identifierPtr];
if (selector != assistIdentifier()){
return super.newMessageSend();
}
MessageSend messageSend = new SelectionOnMessageSend();
int length;
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
this.expressionPtr -= length;
System.arraycopy(
this.expressionStack,
this.expressionPtr + 1,
messageSend.arguments = new Expression[length],
0,
length);
}
this.assistNode = messageSend;
if (!this.diet){
// Don't restart recovery, not yet, until variable decl statement has been consumed.
// This is to ensure chained method invocations are taken into account for resolution.
this.selectionNodeFound = true;
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
return messageSend;
}
protected MessageSend newMessageSendWithTypeArguments() {
char[] selector = this.identifierStack[this.identifierPtr];
if (selector != assistIdentifier()){
return super.newMessageSendWithTypeArguments();
}
MessageSend messageSend = new SelectionOnMessageSend();
int length;
if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
this.expressionPtr -= length;
System.arraycopy(
this.expressionStack,
this.expressionPtr + 1,
messageSend.arguments = new Expression[length],
0,
length);
}
this.assistNode = messageSend;
if (!this.diet){
// Don't restart recovery, not yet, until variable decl statement has been consumed.
// This is to ensure chained method invocations are taken into account for resolution.
this.selectionNodeFound = true;
this.lastIgnoredToken = -1;
}
this.isOrphanCompletionNode = true;
return messageSend;
}
public CompilationUnitDeclaration parse(ICompilationUnit sourceUnit, CompilationResult compilationResult, int start, int end) {
if (end == -1) return super.parse(sourceUnit, compilationResult, start, end);
this.selectionStart = start;
this.selectionEnd = end;
SelectionScanner selectionScanner = (SelectionScanner)this.scanner;
selectionScanner.selectionIdentifier = null;
selectionScanner.selectionStart = start;
selectionScanner.selectionEnd = end;
return super.parse(sourceUnit, compilationResult, -1, -1/*parse without reseting the scanner*/);
}
/*
* Reset context so as to resume to regular parse loop
* If unable to reset for resuming, answers false.
*
* Move checkpoint location, reset internal stacks and
* decide which grammar goal is activated.
*/
protected int resumeAfterRecovery() {
/* if reached assist node inside method body, but still inside nested type,
should continue in diet mode until the end of the method body */
if (this.assistNode != null
&& !(this.referenceContext instanceof CompilationUnitDeclaration)){
this.currentElement.preserveEnclosingBlocks();
if (requireExtendedRecovery()) {
if (this.unstackedAct != ERROR_ACTION) {
return RESUME;
}
return super.resumeAfterRecovery();
}
if (this.currentElement.enclosingType() == null) {
if (!(this.currentElement instanceof RecoveredType)) {
resetStacks();
return HALT;
}
RecoveredType recoveredType = (RecoveredType) this.currentElement;
if (recoveredType.typeDeclaration != null && recoveredType.typeDeclaration.allocation == this.assistNode) {
resetStacks();
return HALT;
}
}
}
return super.resumeAfterRecovery();
}
public void selectionIdentifierCheck(){
if (checkRecoveredType()) return;
}
public void setAssistIdentifier(char[] assistIdent){
((SelectionScanner)this.scanner).selectionIdentifier = assistIdent;
}
/*
* Update recovery state based on current parser/scanner state
*/
protected void updateRecoveryState() {
/* expose parser state to recovery state */
this.currentElement.updateFromParserState();
/* may be able to retrieve completionNode as an orphan, and then attach it */
selectionIdentifierCheck();
attachOrphanCompletionNode();
// if an assist node has been found and a recovered element exists,
// mark enclosing blocks as to be preserved
if (this.assistNode != null && this.currentElement != null) {
this.currentElement.preserveEnclosingBlocks();
}
/* check and update recovered state based on current token,
this action is also performed when shifting token after recovery
got activated once.
*/
recoveryTokenCheck();
}
protected Argument typeElidedArgument() {
char[] selector = this.identifierStack[this.identifierPtr];
if (selector != assistIdentifier()){
return super.typeElidedArgument();
}
this.identifierLengthPtr--;
char[] identifierName = this.identifierStack[this.identifierPtr];
long namePositions = this.identifierPositionStack[this.identifierPtr--];
Argument argument =
new SelectionOnArgumentName(
identifierName,
namePositions,
null, // elided type
ClassFileConstants.AccDefault,
true);
argument.declarationSourceStart = (int) (namePositions >>> 32);
this.assistNode = argument;
return argument;
}
public String toString() {
String s = Util.EMPTY_STRING;
s = s + "elementKindStack : int[] = {"; //$NON-NLS-1$
for (int i = 0; i <= this.elementPtr; i++) {
s = s + String.valueOf(this.elementKindStack[i]) + ","; //$NON-NLS-1$
}
s = s + "}\n"; //$NON-NLS-1$
s = s + "elementInfoStack : int[] = {"; //$NON-NLS-1$
for (int i = 0; i <= this.elementPtr; i++) {
s = s + String.valueOf(this.elementInfoStack[i]) + ","; //$NON-NLS-1$
}
s = s + "}\n"; //$NON-NLS-1$
return s + super.toString();
}
}
