org.eclipse.jdt.core/search/org/eclipse/jdt/internal/core/search/matching/JavaSearchPattern.java - jdt/eclipse.jdt.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2009 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.core.search.matching;

 import org.eclipse.jdt.core.BindingKey;
 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IMethod;
 import org.eclipse.jdt.core.IType;
 import org.eclipse.jdt.core.ITypeParameter;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jdt.core.Signature;
 import org.eclipse.jdt.core.compiler.CharOperation;
 import org.eclipse.jdt.core.search.IJavaSearchConstants;
 import org.eclipse.jdt.core.search.SearchPattern;
 import org.eclipse.jdt.internal.core.search.indexing.IIndexConstants;
 import org.eclipse.jdt.internal.core.util.Util;


 public class JavaSearchPattern extends SearchPattern implements IIndexConstants {

 	/*
 	 * Whether this pattern is case sensitive.
 	 */
 	boolean isCaseSensitive;
 	/*
 	 * Whether this pattern is camel case.
 	 */
 	boolean isCamelCase;

 	/**
 	 * One of following pattern value:
 	 * <ul>
 	 * 	<li>{@link #R_EXACT_MATCH}</li>
 	 *		<li>{@link #R_PREFIX_MATCH}</li>
 	 *		<li>{@link #R_PATTERN_MATCH}</li>
 	 *		<li>{@link #R_REGEXP_MATCH}</li>
 	 *		<li>{@link #R_CAMELCASE_MATCH}</li>
 	 *		<li>{@link #R_CAMELCASE_SAME_PART_COUNT_MATCH}</li>
 	 * </ul>
 	 */
 	int matchMode;

 	/**
 	 * One of {@link #R_ERASURE_MATCH}, {@link #R_EQUIVALENT_MATCH}, {@link #R_FULL_MATCH}.
 	 */
 	int matchCompatibility;

 	/**
 	 * Fine grain limitation
 	 */
 	public int fineGrain = 0;

 	/**
 	 * Mask used on match rule for match mode.
 	 */
 	public static final int MATCH_MODE_MASK = R_EXACT_MATCH
 		| R_PREFIX_MATCH
 		| R_PATTERN_MATCH
 		| R_REGEXP_MATCH
 		| R_CAMELCASE_MATCH
 		| R_CAMELCASE_SAME_PART_COUNT_MATCH;

 	/**
 	 * Mask used on match rule for generic relevance.
 	 */
 	public static final int MATCH_COMPATIBILITY_MASK = R_ERASURE_MATCH | R_EQUIVALENT_MATCH | R_FULL_MATCH;

 	// Signatures and arguments for parameterized types search
 	char[][] typeSignatures;
 	private char[][][] typeArguments;
 	private int flags = 0;
 	static final int HAS_TYPE_ARGUMENTS = 1;

 	protected JavaSearchPattern(int patternKind, int matchRule) {
 		super(matchRule);
 		this.kind = patternKind;
 		// Use getMatchRule() instead of matchRule as super constructor may modify its value
 		// see bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=81377
 		int rule = getMatchRule();
 		this.isCaseSensitive = (rule & R_CASE_SENSITIVE) != 0;
 		this.isCamelCase = (rule & (R_CAMELCASE_MATCH | R_CAMELCASE_SAME_PART_COUNT_MATCH)) != 0;
 		this.matchCompatibility = rule & MATCH_COMPATIBILITY_MASK;
 		this.matchMode = rule & MATCH_MODE_MASK;
 	}

 	/**
 	 * @param fineGrain
 	 */
 	public static String getFineGrainFlagString(final int fineGrain) {
 		if (fineGrain == 0) {
 			return "none"; //$NON-NLS-1$
 		}
 		StringBuffer buffer = new StringBuffer();
 		for (int i=1; i<=32; i++) {
 			int bit = fineGrain & (1<<(i-1));
 			if (bit != 0 && buffer.length()>0) buffer.append(" | "); //$NON-NLS-1$
 			switch (bit) {
 				case IJavaSearchConstants.FIELD_DECLARATION_TYPE_REFERENCE:
 					buffer.append("FIELD_DECLARATION_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.LOCAL_VARIABLE_DECLARATION_TYPE_REFERENCE:
 					buffer.append("LOCAL_VARIABLE_DECLARATION_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.PARAMETER_DECLARATION_TYPE_REFERENCE:
 					buffer.append("PARAMETER_DECLARATION_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.SUPERTYPE_TYPE_REFERENCE:
 					buffer.append("SUPERTYPE_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.THROWS_CLAUSE_TYPE_REFERENCE:
 					buffer.append("THROWS_CLAUSE_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.CAST_TYPE_REFERENCE:
 					buffer.append("CAST_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.CATCH_TYPE_REFERENCE:
 					buffer.append("CATCH_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.CLASS_INSTANCE_CREATION_TYPE_REFERENCE:
 					buffer.append("CLASS_INSTANCE_CREATION_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.RETURN_TYPE_REFERENCE:
 					buffer.append("RETURN_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.IMPORT_DECLARATION_TYPE_REFERENCE:
 					buffer.append("IMPORT_DECLARATION_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.ANNOTATION_TYPE_REFERENCE:
 					buffer.append("ANNOTATION_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.TYPE_ARGUMENT_TYPE_REFERENCE:
 					buffer.append("TYPE_ARGUMENT_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.TYPE_VARIABLE_BOUND_TYPE_REFERENCE:
 					buffer.append("TYPE_VARIABLE_BOUND_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.WILDCARD_BOUND_TYPE_REFERENCE:
 					buffer.append("WILDCARD_BOUND_TYPE_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.SUPER_REFERENCE:
 					buffer.append("SUPER_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.QUALIFIED_REFERENCE:
 					buffer.append("QUALIFIED_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.THIS_REFERENCE:
 					buffer.append("THIS_REFERENCE"); //$NON-NLS-1$
 					break;
 				case IJavaSearchConstants.IMPLICIT_THIS_REFERENCE:
 					buffer.append("IMPLICIT_THIS_REFERENCE"); //$NON-NLS-1$
 					break;
 			}
 		}
 		return buffer.toString();
 	}

 	public SearchPattern getBlankPattern() {
 		return null;
 	}

 	final int getMatchMode() {
 		return this.matchMode;
 	}

 	final boolean isCamelCase() {
 		return this.isCamelCase;
 	}

 	final boolean isCaseSensitive () {
 		return this.isCaseSensitive;
 	}

 	final boolean isErasureMatch() {
 		return (this.matchCompatibility & R_ERASURE_MATCH) != 0;
 	}

 	final boolean isEquivalentMatch() {
 		return (this.matchCompatibility & R_EQUIVALENT_MATCH) != 0;
 	}

 	/*
 	 * Extract method arguments using unique key for parameterized methods
 	 * and type parameters for non-generic ones.
 	 */
 	char[][] extractMethodArguments(IMethod method) {

 		// Use bind key if the element is resolved
 		if (method.isResolved()) {
 			BindingKey bindingKey = new BindingKey(method.getKey());
 			if (bindingKey.isParameterizedMethod()) {
 				String[] argumentsSignatures = bindingKey.getTypeArguments();
 				int length = argumentsSignatures.length;
 				if (length > 0) {
 					char[][] methodArguments = new char[length][];
 					for (int i=0; i<length; i++) {
 						methodArguments[i] = argumentsSignatures[i].toCharArray();
 						CharOperation.replace(methodArguments[i], new char[] { '$', '/' }, '.');
 					}
 					return methodArguments;
 				}
 			}
 			return null;
 		}

 		// Try to get the argument using the JavaModel info
 		try {
 			ITypeParameter[] parameters = method.getTypeParameters();
 			if (parameters != null) {
 				int length = parameters.length;
 				if (length > 0) {
 					char[][] arguments = new char[length][];
 					for (int i=0; i<length; i++) {
 						arguments[i] = Signature.createTypeSignature(parameters[i].getElementName(), false).toCharArray();
 					}
 					return arguments;
 				}
 			}
 		}
 		catch (JavaModelException jme) {
 			// do nothing
 		}
 		return null;
 	}

 	/**
 	 * @return Returns the typeArguments.
 	 */
 	final char[][][] getTypeArguments() {
 		return this.typeArguments;
 	}

 	/**
 	 * Returns whether the pattern has signatures or not.
 	 * If pattern {@link #typeArguments} field, this field shows that it was built
 	 * on a generic source type.
 	 * @return true if {@link #typeSignatures} field is not null and has a length greater than 0.
 	 */
 	public final boolean hasSignatures() {
 		return this.typeSignatures != null && this.typeSignatures.length > 0;
 	}

 	/**
 	 * Returns whether the pattern includes type arguments information or not.
 	 * @return default is false
 	 */
 	public final boolean hasTypeArguments() {
 		return (this.flags & HAS_TYPE_ARGUMENTS) != 0;
 	}

 	/**
 	 * Returns whether the pattern includes type parameters information or not.
 	 * @return true if {@link #typeArguments} contains type parameters instead
 	 * 	type arguments signatures.
 	 */
 	public final boolean hasTypeParameters() {
 		return !hasSignatures() && hasTypeArguments();
 	}

 	/**
 	 * Return whether two suffixes are compatible.
 	 *
 	 * Note that obvious compatibility values as equals and {@link IIndexConstants#TYPE_SUFFIX}
 	 * has to be tested by caller to avoid unnecessary method call...
 	 *
 	 * @param typeSuffix
 	 * @param patternSuffix
 	 * @return true if suffixes are compatible, false otherwise
 	 */
 	boolean matchDifferentTypeSuffixes(int typeSuffix, int patternSuffix) {
 		switch(typeSuffix) {
 			case CLASS_SUFFIX :
 				switch (patternSuffix) {
 					case CLASS_AND_INTERFACE_SUFFIX :
 					case CLASS_AND_ENUM_SUFFIX :
 						return true;
 				}
 				return false;

 			case INTERFACE_SUFFIX :
 				switch (patternSuffix) {
 					case CLASS_AND_INTERFACE_SUFFIX :
 					case INTERFACE_AND_ANNOTATION_SUFFIX:
 						return true;
 				}
 				return false;

 			case ENUM_SUFFIX :
 				return patternSuffix == CLASS_AND_ENUM_SUFFIX;

 			case ANNOTATION_TYPE_SUFFIX :
 				return patternSuffix == INTERFACE_AND_ANNOTATION_SUFFIX;

 			case CLASS_AND_INTERFACE_SUFFIX :
 				switch (patternSuffix) {
 					case CLASS_SUFFIX :
 					case INTERFACE_SUFFIX :
 						return true;
 				}
 				return false;

 			case CLASS_AND_ENUM_SUFFIX :
 				switch (patternSuffix) {
 					case CLASS_SUFFIX :
 					case ENUM_SUFFIX :
 						return true;
 				}
 				return false;

 			case INTERFACE_AND_ANNOTATION_SUFFIX :
 				switch (patternSuffix) {
 					case INTERFACE_SUFFIX :
 					case ANNOTATION_TYPE_SUFFIX :
 						return true;
 				}
 				return false;
 		}

 		// Default behavior is to match suffixes
 		return true;
 	}

 	protected StringBuffer print(StringBuffer output) {
 		output.append(", "); //$NON-NLS-1$
 		if (hasTypeArguments() && hasSignatures()) {
 			output.append("signature:\""); //$NON-NLS-1$
 			output.append(this.typeSignatures[0]);
 			output.append("\", "); //$NON-NLS-1$
 		}
 		switch(getMatchMode()) {
 			case R_EXACT_MATCH :
 				output.append("exact match, "); //$NON-NLS-1$
 				break;
 			case R_PREFIX_MATCH :
 				output.append("prefix match, "); //$NON-NLS-1$
 				break;
 			case R_PATTERN_MATCH :
 				output.append("pattern match, "); //$NON-NLS-1$
 				break;
 			case R_REGEXP_MATCH :
 				output.append("regexp match, "); //$NON-NLS-1$
 				break;
 			case R_CAMELCASE_MATCH :
 				output.append("camel case match, "); //$NON-NLS-1$
 				break;
 			case R_CAMELCASE_SAME_PART_COUNT_MATCH:
 				output.append("camel case same part count match, "); //$NON-NLS-1$
 				break;
 		}
 		if (isCaseSensitive())
 			output.append("case sensitive, "); //$NON-NLS-1$
 		else
 			output.append("case insensitive, "); //$NON-NLS-1$
 		if ((this.matchCompatibility & R_FULL_MATCH) != 0) {
 			output.append("generic full match, "); //$NON-NLS-1$
 		}
 		if ((this.matchCompatibility & R_ERASURE_MATCH) != 0) {
 			output.append("generic erasure match, "); //$NON-NLS-1$
 		}
 		if ((this.matchCompatibility & R_EQUIVALENT_MATCH) != 0) {
 			output.append("generic equivalent match, "); //$NON-NLS-1$
 		}
 		output.append("fine grain: "); //$NON-NLS-1$
 		output.append(getFineGrainFlagString(this.fineGrain));
 		return output;
 	}

 	/**
 	 * @param typeArguments The typeArguments to set.
 	 */
 	final void setTypeArguments(char[][][] typeArguments) {
 		this.typeArguments = typeArguments;
 		// update flags
 		if (this.typeArguments != null) {
 			int length = this.typeArguments.length;
 			for (int i=0; i<length; i++) {
 				if (this.typeArguments[i] != null && this.typeArguments[i].length > 0) {
 					this.flags |= HAS_TYPE_ARGUMENTS;
 					break;
 				}
 			}
 		}
 	}

 	/*
 	 * Extract and store type signatures and arguments using unique key for parameterized types
 	 * and type parameters for non-generic ones
 	 */
 	void storeTypeSignaturesAndArguments(IType type) {
 		if (type.isResolved()) {
 			BindingKey bindingKey = new BindingKey(type.getKey());
 			if (bindingKey.isParameterizedType() || bindingKey.isRawType()) {
 				String signature = bindingKey.toSignature();
 				this.typeSignatures = Util.splitTypeLevelsSignature(signature);
 				setTypeArguments(Util.getAllTypeArguments(this.typeSignatures));
 			}
 			return;
 		}

 		// Scan hierarchy to store type arguments at each level
 		char[][][] typeParameters = new char[10][][];
 		int ptr = -1;
 		boolean hasParameters = false;
 		try {
 			IJavaElement parent = type;
 			ITypeParameter[] parameters = null;
 			while (parent != null && parent.getElementType() == IJavaElement.TYPE) {
 				if (++ptr > typeParameters.length) {
 					System.arraycopy(typeParameters, 0, typeParameters = new char[typeParameters.length+10][][], 0, ptr);
 				}
 				IType parentType = (IType) parent;
 				parameters = parentType.getTypeParameters();
 				if (parameters !=null) {
 					int length = parameters.length;
 					if (length > 0) {
 						hasParameters = true;
 						typeParameters[ptr] = new char[length][];
 						for (int i=0; i<length; i++)
 							typeParameters[ptr][i] = Signature.createTypeSignature(parameters[i].getElementName(), false).toCharArray();
 					}
 				}
 				parent = parent.getParent();
 			}
 		}
 		catch (JavaModelException jme) {
 			return;
 		}

 		// Store type arguments if any
 		if (hasParameters) {
 			if (++ptr < typeParameters.length)
 				System.arraycopy(typeParameters, 0, typeParameters = new char[ptr][][], 0, ptr);
 			setTypeArguments(typeParameters);
 		}
 	}
 	public final String toString() {
 		return print(new StringBuffer(30)).toString();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2004, 2009 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.core.search.matching;

	import org.eclipse.jdt.core.BindingKey;
	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.IMethod;
	import org.eclipse.jdt.core.IType;
	import org.eclipse.jdt.core.ITypeParameter;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jdt.core.Signature;
	import org.eclipse.jdt.core.compiler.CharOperation;
	import org.eclipse.jdt.core.search.IJavaSearchConstants;
	import org.eclipse.jdt.core.search.SearchPattern;
	import org.eclipse.jdt.internal.core.search.indexing.IIndexConstants;
	import org.eclipse.jdt.internal.core.util.Util;


	public class JavaSearchPattern extends SearchPattern implements IIndexConstants {

	/*
	* Whether this pattern is case sensitive.
	*/
	boolean isCaseSensitive;
	/*
	* Whether this pattern is camel case.
	*/
	boolean isCamelCase;

	/**
	* One of following pattern value:
	* <ul>
	* <li>{@link #R_EXACT_MATCH}</li>
	* <li>{@link #R_PREFIX_MATCH}</li>
	* <li>{@link #R_PATTERN_MATCH}</li>
	* <li>{@link #R_REGEXP_MATCH}</li>
	* <li>{@link #R_CAMELCASE_MATCH}</li>
	* <li>{@link #R_CAMELCASE_SAME_PART_COUNT_MATCH}</li>
	* </ul>
	*/
	int matchMode;

	/**
	* One of {@link #R_ERASURE_MATCH}, {@link #R_EQUIVALENT_MATCH}, {@link #R_FULL_MATCH}.
	*/
	int matchCompatibility;

	/**
	* Fine grain limitation
	*/
	public int fineGrain = 0;

	/**
	* Mask used on match rule for match mode.
	*/
	public static final int MATCH_MODE_MASK = R_EXACT_MATCH
	\| R_PREFIX_MATCH
	\| R_PATTERN_MATCH
	\| R_REGEXP_MATCH
	\| R_CAMELCASE_MATCH
	\| R_CAMELCASE_SAME_PART_COUNT_MATCH;

	/**
	* Mask used on match rule for generic relevance.
	*/
	public static final int MATCH_COMPATIBILITY_MASK = R_ERASURE_MATCH \| R_EQUIVALENT_MATCH \| R_FULL_MATCH;

	// Signatures and arguments for parameterized types search
	char[][] typeSignatures;
	private char[][][] typeArguments;
	private int flags = 0;
	static final int HAS_TYPE_ARGUMENTS = 1;

	protected JavaSearchPattern(int patternKind, int matchRule) {
	super(matchRule);
	this.kind = patternKind;
	// Use getMatchRule() instead of matchRule as super constructor may modify its value
	// see bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=81377
	int rule = getMatchRule();
	this.isCaseSensitive = (rule & R_CASE_SENSITIVE) != 0;
	this.isCamelCase = (rule & (R_CAMELCASE_MATCH \| R_CAMELCASE_SAME_PART_COUNT_MATCH)) != 0;
	this.matchCompatibility = rule & MATCH_COMPATIBILITY_MASK;
	this.matchMode = rule & MATCH_MODE_MASK;
	}

	/**
	* @param fineGrain
	*/
	public static String getFineGrainFlagString(final int fineGrain) {
	if (fineGrain == 0) {
	return "none"; //$NON-NLS-1$
	}
	StringBuffer buffer = new StringBuffer();
	for (int i=1; i<=32; i++) {
	int bit = fineGrain & (1<<(i-1));
	if (bit != 0 && buffer.length()>0) buffer.append(" \| "); //$NON-NLS-1$
	switch (bit) {
	case IJavaSearchConstants.FIELD_DECLARATION_TYPE_REFERENCE:
	buffer.append("FIELD_DECLARATION_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.LOCAL_VARIABLE_DECLARATION_TYPE_REFERENCE:
	buffer.append("LOCAL_VARIABLE_DECLARATION_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.PARAMETER_DECLARATION_TYPE_REFERENCE:
	buffer.append("PARAMETER_DECLARATION_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.SUPERTYPE_TYPE_REFERENCE:
	buffer.append("SUPERTYPE_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.THROWS_CLAUSE_TYPE_REFERENCE:
	buffer.append("THROWS_CLAUSE_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.CAST_TYPE_REFERENCE:
	buffer.append("CAST_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.CATCH_TYPE_REFERENCE:
	buffer.append("CATCH_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.CLASS_INSTANCE_CREATION_TYPE_REFERENCE:
	buffer.append("CLASS_INSTANCE_CREATION_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.RETURN_TYPE_REFERENCE:
	buffer.append("RETURN_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.IMPORT_DECLARATION_TYPE_REFERENCE:
	buffer.append("IMPORT_DECLARATION_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.ANNOTATION_TYPE_REFERENCE:
	buffer.append("ANNOTATION_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.TYPE_ARGUMENT_TYPE_REFERENCE:
	buffer.append("TYPE_ARGUMENT_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.TYPE_VARIABLE_BOUND_TYPE_REFERENCE:
	buffer.append("TYPE_VARIABLE_BOUND_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.WILDCARD_BOUND_TYPE_REFERENCE:
	buffer.append("WILDCARD_BOUND_TYPE_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.SUPER_REFERENCE:
	buffer.append("SUPER_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.QUALIFIED_REFERENCE:
	buffer.append("QUALIFIED_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.THIS_REFERENCE:
	buffer.append("THIS_REFERENCE"); //$NON-NLS-1$
	break;
	case IJavaSearchConstants.IMPLICIT_THIS_REFERENCE:
	buffer.append("IMPLICIT_THIS_REFERENCE"); //$NON-NLS-1$
	break;
	}
	}
	return buffer.toString();
	}

	public SearchPattern getBlankPattern() {
	return null;
	}

	final int getMatchMode() {
	return this.matchMode;
	}

	final boolean isCamelCase() {
	return this.isCamelCase;
	}

	final boolean isCaseSensitive () {
	return this.isCaseSensitive;
	}

	final boolean isErasureMatch() {
	return (this.matchCompatibility & R_ERASURE_MATCH) != 0;
	}

	final boolean isEquivalentMatch() {
	return (this.matchCompatibility & R_EQUIVALENT_MATCH) != 0;
	}

	/*
	* Extract method arguments using unique key for parameterized methods
	* and type parameters for non-generic ones.
	*/
	char[][] extractMethodArguments(IMethod method) {

	// Use bind key if the element is resolved
	if (method.isResolved()) {
	BindingKey bindingKey = new BindingKey(method.getKey());
	if (bindingKey.isParameterizedMethod()) {
	String[] argumentsSignatures = bindingKey.getTypeArguments();
	int length = argumentsSignatures.length;
	if (length > 0) {
	char[][] methodArguments = new char[length][];
	for (int i=0; i<length; i++) {
	methodArguments[i] = argumentsSignatures[i].toCharArray();
	CharOperation.replace(methodArguments[i], new char[] { '$', '/' }, '.');
	}
	return methodArguments;
	}
	}
	return null;
	}

	// Try to get the argument using the JavaModel info
	try {
	ITypeParameter[] parameters = method.getTypeParameters();
	if (parameters != null) {
	int length = parameters.length;
	if (length > 0) {
	char[][] arguments = new char[length][];
	for (int i=0; i<length; i++) {
	arguments[i] = Signature.createTypeSignature(parameters[i].getElementName(), false).toCharArray();
	}
	return arguments;
	}
	}
	}
	catch (JavaModelException jme) {
	// do nothing
	}
	return null;
	}

	/**
	* @return Returns the typeArguments.
	*/
	final char[][][] getTypeArguments() {
	return this.typeArguments;
	}

	/**
	* Returns whether the pattern has signatures or not.
	* If pattern {@link #typeArguments} field, this field shows that it was built
	* on a generic source type.
	* @return true if {@link #typeSignatures} field is not null and has a length greater than 0.
	*/
	public final boolean hasSignatures() {
	return this.typeSignatures != null && this.typeSignatures.length > 0;
	}

	/**
	* Returns whether the pattern includes type arguments information or not.
	* @return default is false
	*/
	public final boolean hasTypeArguments() {
	return (this.flags & HAS_TYPE_ARGUMENTS) != 0;
	}

	/**
	* Returns whether the pattern includes type parameters information or not.
	* @return true if {@link #typeArguments} contains type parameters instead
	* type arguments signatures.
	*/
	public final boolean hasTypeParameters() {
	return !hasSignatures() && hasTypeArguments();
	}

	/**
	* Return whether two suffixes are compatible.
	*
	* Note that obvious compatibility values as equals and {@link IIndexConstants#TYPE_SUFFIX}
	* has to be tested by caller to avoid unnecessary method call...
	*
	* @param typeSuffix
	* @param patternSuffix
	* @return true if suffixes are compatible, false otherwise
	*/
	boolean matchDifferentTypeSuffixes(int typeSuffix, int patternSuffix) {
	switch(typeSuffix) {
	case CLASS_SUFFIX :
	switch (patternSuffix) {
	case CLASS_AND_INTERFACE_SUFFIX :
	case CLASS_AND_ENUM_SUFFIX :
	return true;
	}
	return false;

	case INTERFACE_SUFFIX :
	switch (patternSuffix) {
	case CLASS_AND_INTERFACE_SUFFIX :
	case INTERFACE_AND_ANNOTATION_SUFFIX:
	return true;
	}
	return false;

	case ENUM_SUFFIX :
	return patternSuffix == CLASS_AND_ENUM_SUFFIX;

	case ANNOTATION_TYPE_SUFFIX :
	return patternSuffix == INTERFACE_AND_ANNOTATION_SUFFIX;

	case CLASS_AND_INTERFACE_SUFFIX :
	switch (patternSuffix) {
	case CLASS_SUFFIX :
	case INTERFACE_SUFFIX :
	return true;
	}
	return false;

	case CLASS_AND_ENUM_SUFFIX :
	switch (patternSuffix) {
	case CLASS_SUFFIX :
	case ENUM_SUFFIX :
	return true;
	}
	return false;

	case INTERFACE_AND_ANNOTATION_SUFFIX :
	switch (patternSuffix) {
	case INTERFACE_SUFFIX :
	case ANNOTATION_TYPE_SUFFIX :
	return true;
	}
	return false;
	}

	// Default behavior is to match suffixes
	return true;
	}

	protected StringBuffer print(StringBuffer output) {
	output.append(", "); //$NON-NLS-1$
	if (hasTypeArguments() && hasSignatures()) {
	output.append("signature:\""); //$NON-NLS-1$
	output.append(this.typeSignatures[0]);
	output.append("\", "); //$NON-NLS-1$
	}
	switch(getMatchMode()) {
	case R_EXACT_MATCH :
	output.append("exact match, "); //$NON-NLS-1$
	break;
	case R_PREFIX_MATCH :
	output.append("prefix match, "); //$NON-NLS-1$
	break;
	case R_PATTERN_MATCH :
	output.append("pattern match, "); //$NON-NLS-1$
	break;
	case R_REGEXP_MATCH :
	output.append("regexp match, "); //$NON-NLS-1$
	break;
	case R_CAMELCASE_MATCH :
	output.append("camel case match, "); //$NON-NLS-1$
	break;
	case R_CAMELCASE_SAME_PART_COUNT_MATCH:
	output.append("camel case same part count match, "); //$NON-NLS-1$
	break;
	}
	if (isCaseSensitive())
	output.append("case sensitive, "); //$NON-NLS-1$
	else
	output.append("case insensitive, "); //$NON-NLS-1$
	if ((this.matchCompatibility & R_FULL_MATCH) != 0) {
	output.append("generic full match, "); //$NON-NLS-1$
	}
	if ((this.matchCompatibility & R_ERASURE_MATCH) != 0) {
	output.append("generic erasure match, "); //$NON-NLS-1$
	}
	if ((this.matchCompatibility & R_EQUIVALENT_MATCH) != 0) {
	output.append("generic equivalent match, "); //$NON-NLS-1$
	}
	output.append("fine grain: "); //$NON-NLS-1$
	output.append(getFineGrainFlagString(this.fineGrain));
	return output;
	}

	/**
	* @param typeArguments The typeArguments to set.
	*/
	final void setTypeArguments(char[][][] typeArguments) {
	this.typeArguments = typeArguments;
	// update flags
	if (this.typeArguments != null) {
	int length = this.typeArguments.length;
	for (int i=0; i<length; i++) {
	if (this.typeArguments[i] != null && this.typeArguments[i].length > 0) {
	this.flags \|= HAS_TYPE_ARGUMENTS;
	break;
	}
	}
	}
	}

	/*
	* Extract and store type signatures and arguments using unique key for parameterized types
	* and type parameters for non-generic ones
	*/
	void storeTypeSignaturesAndArguments(IType type) {
	if (type.isResolved()) {
	BindingKey bindingKey = new BindingKey(type.getKey());
	if (bindingKey.isParameterizedType() \|\| bindingKey.isRawType()) {
	String signature = bindingKey.toSignature();
	this.typeSignatures = Util.splitTypeLevelsSignature(signature);
	setTypeArguments(Util.getAllTypeArguments(this.typeSignatures));
	}
	return;
	}

	// Scan hierarchy to store type arguments at each level
	char[][][] typeParameters = new char[10][][];
	int ptr = -1;
	boolean hasParameters = false;
	try {
	IJavaElement parent = type;
	ITypeParameter[] parameters = null;
	while (parent != null && parent.getElementType() == IJavaElement.TYPE) {
	if (++ptr > typeParameters.length) {
	System.arraycopy(typeParameters, 0, typeParameters = new char[typeParameters.length+10][][], 0, ptr);
	}
	IType parentType = (IType) parent;
	parameters = parentType.getTypeParameters();
	if (parameters !=null) {
	int length = parameters.length;
	if (length > 0) {
	hasParameters = true;
	typeParameters[ptr] = new char[length][];
	for (int i=0; i<length; i++)
	typeParameters[ptr][i] = Signature.createTypeSignature(parameters[i].getElementName(), false).toCharArray();
	}
	}
	parent = parent.getParent();
	}
	}
	catch (JavaModelException jme) {
	return;
	}

	// Store type arguments if any
	if (hasParameters) {
	if (++ptr < typeParameters.length)
	System.arraycopy(typeParameters, 0, typeParameters = new char[ptr][][], 0, ptr);
	setTypeArguments(typeParameters);
	}
	}
	public final String toString() {
	return print(new StringBuffer(30)).toString();
	}
	}