search/org/eclipse/jdt/internal/core/search/matching/FieldLocator.java - gerrit/e4/org.eclipse.jdt.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2004 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.core.search.matching;

 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.jdt.core.*;
 import org.eclipse.jdt.core.compiler.CharOperation;
 import org.eclipse.jdt.core.search.*;
 import org.eclipse.jdt.core.search.SearchMatch;
 import org.eclipse.jdt.internal.compiler.ast.*;
 import org.eclipse.jdt.internal.compiler.env.IBinaryType;
 import org.eclipse.jdt.internal.compiler.lookup.*;
 import org.eclipse.jdt.internal.core.util.SimpleSet;

 public class FieldLocator extends VariableLocator {

 protected boolean isDeclarationOfAccessedFieldsPattern;

 public FieldLocator(FieldPattern pattern) {
 	super(pattern);

 	this.isDeclarationOfAccessedFieldsPattern = this.pattern instanceof DeclarationOfAccessedFieldsPattern;
 }
 //public int match(ASTNode node, MatchingNodeSet nodeSet) - SKIP IT
 //public int match(ConstructorDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
 public int match(FieldDeclaration node, MatchingNodeSet nodeSet) {
 	int referencesLevel = IMPOSSIBLE_MATCH;
 	if (this.pattern.findReferences)
 		// must be a write only access with an initializer
 		if (this.pattern.writeAccess && !this.pattern.readAccess && node.initialization != null)
 			if (matchesName(this.pattern.name, node.name))
 				referencesLevel = ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH;

 	int declarationsLevel = IMPOSSIBLE_MATCH;
 	if (this.pattern.findDeclarations)
 		if (node.isField()) // ignore field initializers
 			if (matchesName(this.pattern.name, node.name))
 				if (matchesTypeReference(((FieldPattern)this.pattern).typeSimpleName, node.type))
 					declarationsLevel = ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH;

 	return nodeSet.addMatch(node, referencesLevel >= declarationsLevel ? referencesLevel : declarationsLevel); // use the stronger match
 }
 //public int match(MethodDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
 //public int match(MessageSend node, MatchingNodeSet nodeSet) - SKIP IT
 //public int match(TypeDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
 //public int match(TypeReference node, MatchingNodeSet nodeSet) - SKIP IT

 protected int matchContainer() {
 	if (this.pattern.findReferences) {
 		// need to look almost everywhere to find in javadocs
 		return CLASS_CONTAINER | METHOD_CONTAINER | FIELD_CONTAINER;
 	}
 	return CLASS_CONTAINER;
 }
 protected int matchField(FieldBinding field, boolean matchName) {
 	if (field == null) return INACCURATE_MATCH;

 	if (matchName && !matchesName(this.pattern.name, field.readableName())) return IMPOSSIBLE_MATCH;

 	FieldPattern fieldPattern = (FieldPattern)this.pattern;
 	ReferenceBinding receiverBinding = field.declaringClass;
 	if (receiverBinding == null) {
 		if (field == ArrayBinding.ArrayLength)
 			// optimized case for length field of an array
 			return fieldPattern.declaringQualification == null && fieldPattern.declaringSimpleName == null
 				? ACCURATE_MATCH
 				: IMPOSSIBLE_MATCH;
 		return INACCURATE_MATCH;
 	}

 	// Note there is no dynamic lookup for field access
 	int declaringLevel = resolveLevelForType(fieldPattern.declaringSimpleName, fieldPattern.declaringQualification, receiverBinding);
 	if (declaringLevel == IMPOSSIBLE_MATCH) return IMPOSSIBLE_MATCH;

 	// look at field type only if declaring type is not specified
 	if (fieldPattern.declaringSimpleName == null) return declaringLevel;

 	int typeLevel = resolveLevelForType(fieldPattern.typeSimpleName, fieldPattern.typeQualification, field.type);
 	return declaringLevel > typeLevel ? typeLevel : declaringLevel; // return the weaker match
 }
 protected int matchReference(Reference node, MatchingNodeSet nodeSet, boolean writeOnlyAccess) {
 	if (node instanceof FieldReference) {
 		if (matchesName(this.pattern.name, ((FieldReference) node).token))
 			return nodeSet.addMatch(node, ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH);
 		return IMPOSSIBLE_MATCH;
 	}
 	return super.matchReference(node, nodeSet, writeOnlyAccess);
 }
 protected void matchReportReference(ASTNode reference, IJavaElement element, int accuracy, MatchLocator locator) throws CoreException {
 	if (this.isDeclarationOfAccessedFieldsPattern) {
 		// need exact match to be able to open on type ref
 		if (accuracy != SearchMatch.A_ACCURATE) return;

 		// element that references the field must be included in the enclosing element
 		DeclarationOfAccessedFieldsPattern declPattern = (DeclarationOfAccessedFieldsPattern) this.pattern;
 		while (element != null && !declPattern.enclosingElement.equals(element))
 			element = element.getParent();
 		if (element != null) {
 			if (reference instanceof FieldReference) {
 				reportDeclaration(((FieldReference) reference).binding, locator, declPattern.knownFields);
 			} else if (reference instanceof QualifiedNameReference) {
 				QualifiedNameReference qNameRef = (QualifiedNameReference) reference;
 				Binding binding = qNameRef.binding;
 				if (binding instanceof FieldBinding)
 					reportDeclaration((FieldBinding)binding, locator, declPattern.knownFields);
 				int otherMax = qNameRef.otherBindings == null ? 0 : qNameRef.otherBindings.length;
 				for (int i = 0; i < otherMax; i++)
 					reportDeclaration(qNameRef.otherBindings[i], locator, declPattern.knownFields);
 			} else if (reference instanceof SingleNameReference) {
 				reportDeclaration((FieldBinding)((SingleNameReference) reference).binding, locator, declPattern.knownFields);
 			}
 		}
 	} else if (reference instanceof FieldReference) {
 		FieldReference fieldReference = (FieldReference) reference;
 		long position = fieldReference.nameSourcePosition;
 		int start = (int) (position >>> 32);
 		int end = (int) position;
 		SearchMatch match = locator.newFieldReferenceMatch(element, accuracy, start, end-start+1, fieldReference);
 		locator.report(match);
 	} else if (reference instanceof SingleNameReference) {
 		int offset = reference.sourceStart;
 		SearchMatch match = locator.newFieldReferenceMatch(element, accuracy, offset, reference.sourceEnd-offset+1, reference);
 		locator.report(match);
 	} else if (reference instanceof QualifiedNameReference) {
 		QualifiedNameReference qNameRef = (QualifiedNameReference) reference;
 		int length = qNameRef.tokens.length;
 		int[] accuracies = new int[length];
 		Binding binding = qNameRef.binding;
 		int indexOfFirstFieldBinding = qNameRef.indexOfFirstFieldBinding > 0 ? qNameRef.indexOfFirstFieldBinding-1 : 0;
 		for (int i = 0; i < indexOfFirstFieldBinding; i++)
 			accuracies[i] = -1;
 		// first token
 		if (matchesName(this.pattern.name, qNameRef.tokens[indexOfFirstFieldBinding]) && !(binding instanceof LocalVariableBinding)) {
 			FieldBinding fieldBinding = binding instanceof FieldBinding ? (FieldBinding) binding : null;
 			if (fieldBinding == null) {
 				accuracies[indexOfFirstFieldBinding] = accuracy;
 			} else {
 				switch (matchField(fieldBinding, false)) {
 					case ACCURATE_MATCH:
 						accuracies[indexOfFirstFieldBinding] = SearchMatch.A_ACCURATE;
 						break;
 					case INACCURATE_MATCH:
 						accuracies[indexOfFirstFieldBinding] = SearchMatch.A_INACCURATE;
 						break;
 					default:
 						accuracies[indexOfFirstFieldBinding] = -1;
 				}
 			}
 		} else {
 			accuracies[indexOfFirstFieldBinding] = -1;
 		}
 		// other tokens
 		for (int i = indexOfFirstFieldBinding+1; i < length; i++) {
 			char[] token = qNameRef.tokens[i];
 			if (matchesName(this.pattern.name, token)) {
 				FieldBinding otherBinding = qNameRef.otherBindings == null ? null : qNameRef.otherBindings[i-(indexOfFirstFieldBinding+1)];
 				if (otherBinding == null) {
 					accuracies[i] = accuracy;
 				} else {
 					switch (matchField(otherBinding, false)) {
 						case ACCURATE_MATCH:
 							accuracies[i] = SearchMatch.A_ACCURATE;
 							break;
 						case INACCURATE_MATCH:
 							accuracies[i] = SearchMatch.A_INACCURATE;
 							break;
 						default:
 							accuracies[i] = -1;
 					}
 				}
 			} else {
 				accuracies[i] = -1;
 			}
 		}
 		locator.reportAccurateFieldReference(qNameRef, element, accuracies);
 	}
 }
 protected void reportDeclaration(FieldBinding fieldBinding, MatchLocator locator, SimpleSet knownFields) throws CoreException {
 	// ignore length field
 	if (fieldBinding == ArrayBinding.ArrayLength) return;

 	ReferenceBinding declaringClass = fieldBinding.declaringClass;
 	IType type = locator.lookupType(declaringClass);
 	if (type == null) return; // case of a secondary type

 	char[] bindingName = fieldBinding.name;
 	IField field = type.getField(new String(bindingName));
 	if (knownFields.includes(field)) return;

 	knownFields.add(field);
 	IResource resource = type.getResource();
 	boolean isBinary = type.isBinary();
 	IBinaryType info = null;
 	if (isBinary) {
 		if (resource == null)
 			resource = type.getJavaProject().getProject();
 		info = locator.getBinaryInfo((org.eclipse.jdt.internal.core.ClassFile) type.getClassFile(), resource);
 		locator.reportBinaryMemberDeclaration(resource, field, info, SearchMatch.A_ACCURATE);
 	} else {
 		ClassScope scope = ((SourceTypeBinding) declaringClass).scope;
 		if (scope != null) {
 			TypeDeclaration typeDecl = scope.referenceContext;
 			FieldDeclaration fieldDecl = null;
 			FieldDeclaration[] fieldDecls = typeDecl.fields;
 			for (int i = 0, length = fieldDecls.length; i < length; i++) {
 				if (CharOperation.equals(bindingName, fieldDecls[i].name)) {
 					fieldDecl = fieldDecls[i];
 					break;
 				}
 			}
 			if (fieldDecl != null) {
 				int offset = fieldDecl.sourceStart;
 				SearchMatch match = new FieldDeclarationMatch(field, SearchMatch.A_ACCURATE, offset, fieldDecl.sourceEnd-offset+1, locator.getParticipant(), resource);
 				locator.report(match);

 			}
 		}
 	}
 }
 protected int referenceType() {
 	return IJavaElement.FIELD;
 }
 public int resolveLevel(ASTNode possiblelMatchingNode) {
 	if (this.pattern.findReferences) {
 		if (possiblelMatchingNode instanceof FieldReference)
 			return matchField(((FieldReference) possiblelMatchingNode).binding, true);
 		else if (possiblelMatchingNode instanceof NameReference)
 			return resolveLevel((NameReference) possiblelMatchingNode);
 	}
 	if (possiblelMatchingNode instanceof FieldDeclaration)
 		return matchField(((FieldDeclaration) possiblelMatchingNode).binding, true);
 	return IMPOSSIBLE_MATCH;
 }
 public int resolveLevel(Binding binding) {
 	if (binding == null) return INACCURATE_MATCH;
 	if (!(binding instanceof FieldBinding)) return IMPOSSIBLE_MATCH;

 	return matchField((FieldBinding) binding, true);
 }
 protected int resolveLevel(NameReference nameRef) {
 	if (nameRef instanceof SingleNameReference)
 		return resolveLevel(nameRef.binding);

 	Binding binding = nameRef.binding;
 	QualifiedNameReference qNameRef = (QualifiedNameReference) nameRef;
 	FieldBinding fieldBinding = null;
 	if (binding instanceof FieldBinding) {
 		fieldBinding = (FieldBinding) binding;
 		char[] bindingName = fieldBinding.name;
 		int lastDot = CharOperation.lastIndexOf('.', bindingName);
 		if (lastDot > -1)
 			bindingName = CharOperation.subarray(bindingName, lastDot+1, bindingName.length);
 		if (matchesName(this.pattern.name, bindingName))
 			return matchField(fieldBinding, false);
 	}
 	int otherMax = qNameRef.otherBindings == null ? 0 : qNameRef.otherBindings.length;
 	for (int i = 0; i < otherMax; i++) {
 		char[] token = qNameRef.tokens[i + qNameRef.indexOfFirstFieldBinding];
 		if (matchesName(this.pattern.name, token)) {
 			FieldBinding otherBinding = qNameRef.otherBindings[i];
 			int level = matchField(otherBinding, false);
 			if (level != IMPOSSIBLE_MATCH) return level;
 		}
 	}
 	return IMPOSSIBLE_MATCH;
 }
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2004 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.core.search.matching;

	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.jdt.core.*;
	import org.eclipse.jdt.core.compiler.CharOperation;
	import org.eclipse.jdt.core.search.*;
	import org.eclipse.jdt.core.search.SearchMatch;
	import org.eclipse.jdt.internal.compiler.ast.*;
	import org.eclipse.jdt.internal.compiler.env.IBinaryType;
	import org.eclipse.jdt.internal.compiler.lookup.*;
	import org.eclipse.jdt.internal.core.util.SimpleSet;

	public class FieldLocator extends VariableLocator {

	protected boolean isDeclarationOfAccessedFieldsPattern;

	public FieldLocator(FieldPattern pattern) {
	super(pattern);

	this.isDeclarationOfAccessedFieldsPattern = this.pattern instanceof DeclarationOfAccessedFieldsPattern;
	}
	//public int match(ASTNode node, MatchingNodeSet nodeSet) - SKIP IT
	//public int match(ConstructorDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
	public int match(FieldDeclaration node, MatchingNodeSet nodeSet) {
	int referencesLevel = IMPOSSIBLE_MATCH;
	if (this.pattern.findReferences)
	// must be a write only access with an initializer
	if (this.pattern.writeAccess && !this.pattern.readAccess && node.initialization != null)
	if (matchesName(this.pattern.name, node.name))
	referencesLevel = ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH;

	int declarationsLevel = IMPOSSIBLE_MATCH;
	if (this.pattern.findDeclarations)
	if (node.isField()) // ignore field initializers
	if (matchesName(this.pattern.name, node.name))
	if (matchesTypeReference(((FieldPattern)this.pattern).typeSimpleName, node.type))
	declarationsLevel = ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH;

	return nodeSet.addMatch(node, referencesLevel >= declarationsLevel ? referencesLevel : declarationsLevel); // use the stronger match
	}
	//public int match(MethodDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
	//public int match(MessageSend node, MatchingNodeSet nodeSet) - SKIP IT
	//public int match(TypeDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
	//public int match(TypeReference node, MatchingNodeSet nodeSet) - SKIP IT

	protected int matchContainer() {
	if (this.pattern.findReferences) {
	// need to look almost everywhere to find in javadocs
	return CLASS_CONTAINER \| METHOD_CONTAINER \| FIELD_CONTAINER;
	}
	return CLASS_CONTAINER;
	}
	protected int matchField(FieldBinding field, boolean matchName) {
	if (field == null) return INACCURATE_MATCH;

	if (matchName && !matchesName(this.pattern.name, field.readableName())) return IMPOSSIBLE_MATCH;

	FieldPattern fieldPattern = (FieldPattern)this.pattern;
	ReferenceBinding receiverBinding = field.declaringClass;
	if (receiverBinding == null) {
	if (field == ArrayBinding.ArrayLength)
	// optimized case for length field of an array
	return fieldPattern.declaringQualification == null && fieldPattern.declaringSimpleName == null
	? ACCURATE_MATCH
	: IMPOSSIBLE_MATCH;
	return INACCURATE_MATCH;
	}

	// Note there is no dynamic lookup for field access
	int declaringLevel = resolveLevelForType(fieldPattern.declaringSimpleName, fieldPattern.declaringQualification, receiverBinding);
	if (declaringLevel == IMPOSSIBLE_MATCH) return IMPOSSIBLE_MATCH;

	// look at field type only if declaring type is not specified
	if (fieldPattern.declaringSimpleName == null) return declaringLevel;

	int typeLevel = resolveLevelForType(fieldPattern.typeSimpleName, fieldPattern.typeQualification, field.type);
	return declaringLevel > typeLevel ? typeLevel : declaringLevel; // return the weaker match
	}
	protected int matchReference(Reference node, MatchingNodeSet nodeSet, boolean writeOnlyAccess) {
	if (node instanceof FieldReference) {
	if (matchesName(this.pattern.name, ((FieldReference) node).token))
	return nodeSet.addMatch(node, ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH);
	return IMPOSSIBLE_MATCH;
	}
	return super.matchReference(node, nodeSet, writeOnlyAccess);
	}
	protected void matchReportReference(ASTNode reference, IJavaElement element, int accuracy, MatchLocator locator) throws CoreException {
	if (this.isDeclarationOfAccessedFieldsPattern) {
	// need exact match to be able to open on type ref
	if (accuracy != SearchMatch.A_ACCURATE) return;

	// element that references the field must be included in the enclosing element
	DeclarationOfAccessedFieldsPattern declPattern = (DeclarationOfAccessedFieldsPattern) this.pattern;
	while (element != null && !declPattern.enclosingElement.equals(element))
	element = element.getParent();
	if (element != null) {
	if (reference instanceof FieldReference) {
	reportDeclaration(((FieldReference) reference).binding, locator, declPattern.knownFields);
	} else if (reference instanceof QualifiedNameReference) {
	QualifiedNameReference qNameRef = (QualifiedNameReference) reference;
	Binding binding = qNameRef.binding;
	if (binding instanceof FieldBinding)
	reportDeclaration((FieldBinding)binding, locator, declPattern.knownFields);
	int otherMax = qNameRef.otherBindings == null ? 0 : qNameRef.otherBindings.length;
	for (int i = 0; i < otherMax; i++)
	reportDeclaration(qNameRef.otherBindings[i], locator, declPattern.knownFields);
	} else if (reference instanceof SingleNameReference) {
	reportDeclaration((FieldBinding)((SingleNameReference) reference).binding, locator, declPattern.knownFields);
	}
	}
	} else if (reference instanceof FieldReference) {
	FieldReference fieldReference = (FieldReference) reference;
	long position = fieldReference.nameSourcePosition;
	int start = (int) (position >>> 32);
	int end = (int) position;
	SearchMatch match = locator.newFieldReferenceMatch(element, accuracy, start, end-start+1, fieldReference);
	locator.report(match);
	} else if (reference instanceof SingleNameReference) {
	int offset = reference.sourceStart;
	SearchMatch match = locator.newFieldReferenceMatch(element, accuracy, offset, reference.sourceEnd-offset+1, reference);
	locator.report(match);
	} else if (reference instanceof QualifiedNameReference) {
	QualifiedNameReference qNameRef = (QualifiedNameReference) reference;
	int length = qNameRef.tokens.length;
	int[] accuracies = new int[length];
	Binding binding = qNameRef.binding;
	int indexOfFirstFieldBinding = qNameRef.indexOfFirstFieldBinding > 0 ? qNameRef.indexOfFirstFieldBinding-1 : 0;
	for (int i = 0; i < indexOfFirstFieldBinding; i++)
	accuracies[i] = -1;
	// first token
	if (matchesName(this.pattern.name, qNameRef.tokens[indexOfFirstFieldBinding]) && !(binding instanceof LocalVariableBinding)) {
	FieldBinding fieldBinding = binding instanceof FieldBinding ? (FieldBinding) binding : null;
	if (fieldBinding == null) {
	accuracies[indexOfFirstFieldBinding] = accuracy;
	} else {
	switch (matchField(fieldBinding, false)) {
	case ACCURATE_MATCH:
	accuracies[indexOfFirstFieldBinding] = SearchMatch.A_ACCURATE;
	break;
	case INACCURATE_MATCH:
	accuracies[indexOfFirstFieldBinding] = SearchMatch.A_INACCURATE;
	break;
	default:
	accuracies[indexOfFirstFieldBinding] = -1;
	}
	}
	} else {
	accuracies[indexOfFirstFieldBinding] = -1;
	}
	// other tokens
	for (int i = indexOfFirstFieldBinding+1; i < length; i++) {
	char[] token = qNameRef.tokens[i];
	if (matchesName(this.pattern.name, token)) {
	FieldBinding otherBinding = qNameRef.otherBindings == null ? null : qNameRef.otherBindings[i-(indexOfFirstFieldBinding+1)];
	if (otherBinding == null) {
	accuracies[i] = accuracy;
	} else {
	switch (matchField(otherBinding, false)) {
	case ACCURATE_MATCH:
	accuracies[i] = SearchMatch.A_ACCURATE;
	break;
	case INACCURATE_MATCH:
	accuracies[i] = SearchMatch.A_INACCURATE;
	break;
	default:
	accuracies[i] = -1;
	}
	}
	} else {
	accuracies[i] = -1;
	}
	}
	locator.reportAccurateFieldReference(qNameRef, element, accuracies);
	}
	}
	protected void reportDeclaration(FieldBinding fieldBinding, MatchLocator locator, SimpleSet knownFields) throws CoreException {
	// ignore length field
	if (fieldBinding == ArrayBinding.ArrayLength) return;

	ReferenceBinding declaringClass = fieldBinding.declaringClass;
	IType type = locator.lookupType(declaringClass);
	if (type == null) return; // case of a secondary type

	char[] bindingName = fieldBinding.name;
	IField field = type.getField(new String(bindingName));
	if (knownFields.includes(field)) return;

	knownFields.add(field);
	IResource resource = type.getResource();
	boolean isBinary = type.isBinary();
	IBinaryType info = null;
	if (isBinary) {
	if (resource == null)
	resource = type.getJavaProject().getProject();
	info = locator.getBinaryInfo((org.eclipse.jdt.internal.core.ClassFile) type.getClassFile(), resource);
	locator.reportBinaryMemberDeclaration(resource, field, info, SearchMatch.A_ACCURATE);
	} else {
	ClassScope scope = ((SourceTypeBinding) declaringClass).scope;
	if (scope != null) {
	TypeDeclaration typeDecl = scope.referenceContext;
	FieldDeclaration fieldDecl = null;
	FieldDeclaration[] fieldDecls = typeDecl.fields;
	for (int i = 0, length = fieldDecls.length; i < length; i++) {
	if (CharOperation.equals(bindingName, fieldDecls[i].name)) {
	fieldDecl = fieldDecls[i];
	break;
	}
	}
	if (fieldDecl != null) {
	int offset = fieldDecl.sourceStart;
	SearchMatch match = new FieldDeclarationMatch(field, SearchMatch.A_ACCURATE, offset, fieldDecl.sourceEnd-offset+1, locator.getParticipant(), resource);
	locator.report(match);

	}
	}
	}
	}
	protected int referenceType() {
	return IJavaElement.FIELD;
	}
	public int resolveLevel(ASTNode possiblelMatchingNode) {
	if (this.pattern.findReferences) {
	if (possiblelMatchingNode instanceof FieldReference)
	return matchField(((FieldReference) possiblelMatchingNode).binding, true);
	else if (possiblelMatchingNode instanceof NameReference)
	return resolveLevel((NameReference) possiblelMatchingNode);
	}
	if (possiblelMatchingNode instanceof FieldDeclaration)
	return matchField(((FieldDeclaration) possiblelMatchingNode).binding, true);
	return IMPOSSIBLE_MATCH;
	}
	public int resolveLevel(Binding binding) {
	if (binding == null) return INACCURATE_MATCH;
	if (!(binding instanceof FieldBinding)) return IMPOSSIBLE_MATCH;

	return matchField((FieldBinding) binding, true);
	}
	protected int resolveLevel(NameReference nameRef) {
	if (nameRef instanceof SingleNameReference)
	return resolveLevel(nameRef.binding);

	Binding binding = nameRef.binding;
	QualifiedNameReference qNameRef = (QualifiedNameReference) nameRef;
	FieldBinding fieldBinding = null;
	if (binding instanceof FieldBinding) {
	fieldBinding = (FieldBinding) binding;
	char[] bindingName = fieldBinding.name;
	int lastDot = CharOperation.lastIndexOf('.', bindingName);
	if (lastDot > -1)
	bindingName = CharOperation.subarray(bindingName, lastDot+1, bindingName.length);
	if (matchesName(this.pattern.name, bindingName))
	return matchField(fieldBinding, false);
	}
	int otherMax = qNameRef.otherBindings == null ? 0 : qNameRef.otherBindings.length;
	for (int i = 0; i < otherMax; i++) {
	char[] token = qNameRef.tokens[i + qNameRef.indexOfFirstFieldBinding];
	if (matchesName(this.pattern.name, token)) {
	FieldBinding otherBinding = qNameRef.otherBindings[i];
	int level = matchField(otherBinding, false);
	if (level != IMPOSSIBLE_MATCH) return level;
	}
	}
	return IMPOSSIBLE_MATCH;
	}
	}