org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/GenerateToStringAction.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2008, 2011 Mateusz Matela 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:
  *     Mateusz Matela <mateusz.matela@gmail.com> - [code manipulation] [dcr] toString() builder wizard - https://bugs.eclipse.org/bugs/show_bug.cgi?id=26070
  *     Mateusz Matela <mateusz.matela@gmail.com> - [toString] toString() generator: Fields in declaration order - https://bugs.eclipse.org/bugs/show_bug.cgi?id=279924
  *******************************************************************************/
 package org.eclipse.jdt.ui.actions;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.swt.widgets.Shell;

 import org.eclipse.core.resources.IWorkspaceRunnable;

 import org.eclipse.ui.IWorkbenchSite;
 import org.eclipse.ui.PlatformUI;

 import org.eclipse.ltk.core.refactoring.RefactoringStatus;

 import org.eclipse.jdt.core.IField;
 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IMember;
 import org.eclipse.jdt.core.IType;
 import org.eclipse.jdt.core.JavaCore;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jdt.core.dom.IBinding;
 import org.eclipse.jdt.core.dom.IMethodBinding;
 import org.eclipse.jdt.core.dom.ITypeBinding;
 import org.eclipse.jdt.core.dom.IVariableBinding;
 import org.eclipse.jdt.core.dom.Modifier;

 import org.eclipse.jdt.internal.corext.codemanipulation.CodeGenerationSettings;
 import org.eclipse.jdt.internal.corext.codemanipulation.tostringgeneration.GenerateToStringOperation;
 import org.eclipse.jdt.internal.corext.codemanipulation.tostringgeneration.ToStringGenerationSettings;
 import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
 import org.eclipse.jdt.internal.corext.util.Messages;

 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
 import org.eclipse.jdt.internal.ui.actions.ActionMessages;
 import org.eclipse.jdt.internal.ui.actions.SelectionConverter;
 import org.eclipse.jdt.internal.ui.dialogs.GenerateToStringDialog;
 import org.eclipse.jdt.internal.ui.dialogs.SourceActionDialog;
 import org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor;
 import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels;

 /**
  * Adds method implementations for <code>{@link java.lang.Object#toString()}</code> The action opens a
  * dialog from which the user can choose the fields and methods to be considered.
  * <p>
  * Will open the parent compilation unit in a Java editor. The result is
  * unsaved, so the user can decide if the changes are acceptable.
  * <p>
  * The action is applicable to structured selections containing elements of type
  * {@link org.eclipse.jdt.core.IType}.
  *
  * <p>
  * This class may be instantiated; it is not intended to be subclassed.
  * </p>
  *
  * @since 3.5
  *
  * @noextend This class is not intended to be subclassed by clients.
  */
 public class GenerateToStringAction extends GenerateMethodAbstractAction {

 	private static final String METHODNAME_TO_STRING= "toString"; //$NON-NLS-1$

 	private List<IVariableBinding> fFields;

 	private List<IVariableBinding> fInheritedFields;

 	private List<IVariableBinding> fSelectedFields;

 	private List<IMethodBinding> fMethods;

 	private List<IMethodBinding> fInheritedMethods;

 	private GenerateToStringOperation operation;

 	private class ToStringInfo {

 		public boolean foundToString= false;

 		public boolean foundFinalToString= false;

 		public ToStringInfo(ITypeBinding typeBinding) {
 			IMethodBinding[] declaredMethods= typeBinding.getDeclaredMethods();

 			for (int i= 0; i < declaredMethods.length; i++) {
 				if (declaredMethods[i].getName().equals(METHODNAME_TO_STRING) && declaredMethods[i].getParameterTypes().length == 0) {
 					this.foundToString= true;
 					if (Modifier.isFinal(declaredMethods[i].getModifiers()))
 						this.foundFinalToString= true;
 				}
 			}
 		}
 	}

 	/**
 	 * Creates a new generate tostring action.
 	 * <p>
 	 * The action requires that the selection provided by the site's selection
 	 * provider is of type
 	 * {@link org.eclipse.jface.viewers.IStructuredSelection}.
 	 *
 	 * @param site the workbench site providing context information for this
 	 *            action
 	 */
 	public GenerateToStringAction(IWorkbenchSite site) {
 		super(site);
 		setText(ActionMessages.GenerateToStringAction_label);
 		setDescription(ActionMessages.GenerateToStringAction_description);
 		setToolTipText(ActionMessages.GenerateToStringAction_tooltip);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.GENERATE_TOSTRING_ACTION);
 	}

 	/**
 	 * Note: This constructor is for internal use only. Clients should not call
 	 * this constructor.
 	 *
 	 * @param editor the compilation unit editor
 	 *
 	 * @noreference This constructor is not intended to be referenced by clients.
 	 */
 	public GenerateToStringAction(CompilationUnitEditor editor) {
 		this(editor.getEditorSite());
 		fEditor= editor;
 		setEnabled((fEditor != null && SelectionConverter.canOperateOn(fEditor)));
 	}

 	@Override
 	RefactoringStatus checkMember(Object object) {
 		// no conditions need to be checked
 		return new RefactoringStatus();
 	}

 	@Override
 	RefactoringStatus checkGeneralConditions(IType type, CodeGenerationSettings settings, Object[] selected) {
 		return operation.checkConditions();
 	}

 	 @Override
 	RefactoringStatus checkSuperClass(ITypeBinding superclass) {
 		RefactoringStatus status= new RefactoringStatus();
 		if (new ToStringInfo(superclass).foundFinalToString) {
 			status.addError(Messages.format(ActionMessages.GenerateMethodAbstractAction_final_method_in_superclass_error, new String[] {
 					Messages.format(ActionMessages.GenerateMethodAbstractAction_super_class, BasicElementLabels.getJavaElementName(superclass.getQualifiedName())),
 					ActionMessages.GenerateToStringAction_tostring }), createRefactoringStatusContext(superclass.getJavaElement()));
 		}
 		return status;
 	}

 	@Override
 	SourceActionDialog createDialog(Shell shell, IType type) throws JavaModelException {
 		IVariableBinding[] fieldBindings= fFields.toArray(new IVariableBinding[0]);
 		IVariableBinding[] inheritedFieldBindings= fInheritedFields.toArray(new IVariableBinding[0]);
 		IVariableBinding[] selectedFieldBindings= fSelectedFields.toArray(new IVariableBinding[0]);
 		IMethodBinding[] methodBindings= fMethods.toArray(new IMethodBinding[0]);
 		IMethodBinding[] inheritededMethodBindings= fInheritedMethods.toArray(new IMethodBinding[0]);
 		return new GenerateToStringDialog(shell, fEditor, type, fieldBindings, inheritedFieldBindings, selectedFieldBindings, methodBindings, inheritededMethodBindings);
 	}

 	@Override
 	IWorkspaceRunnable createOperation(Object[] selectedBindings, CodeGenerationSettings settings, boolean regenerate, IJavaElement type, IJavaElement elementPosition) {
 		return operation= GenerateToStringOperation.createOperation(fTypeBinding, selectedBindings, fUnit, elementPosition, (ToStringGenerationSettings)settings);
 	}

 	@Override
 	CodeGenerationSettings createSettings(IType type, SourceActionDialog dialog) {
 		ToStringGenerationSettings settings= ((GenerateToStringDialog) dialog).getGenerationSettings();
 		super.createSettings(type, dialog).setSettings(settings);
 		settings.createComments= dialog.getGenerateComment();
 		settings.useBlocks= useBlocks(type.getJavaProject());
 		String version= fUnit.getJavaElement().getJavaProject().getOption(JavaCore.COMPILER_SOURCE, true);
 		settings.is50orHigher= !JavaModelUtil.isVersionLessThan(version, JavaCore.VERSION_1_5);
 		settings.is60orHigher= !JavaModelUtil.isVersionLessThan(version, JavaCore.VERSION_1_6);
 		return settings;
 	}

 	@Override
 	boolean generateCandidates() throws JavaModelException {
 		IVariableBinding[] candidateFields= fTypeBinding.getDeclaredFields();
 		HashMap<IJavaElement, IVariableBinding> fieldsToBindings= new HashMap<IJavaElement, IVariableBinding>();
 		HashMap<IJavaElement, IVariableBinding> selectedFieldsToBindings= new HashMap<IJavaElement, IVariableBinding>();
 		for (int i= 0; i < candidateFields.length; i++) {
 			if (!Modifier.isStatic(candidateFields[i].getModifiers())) {
 				fieldsToBindings.put(candidateFields[i].getJavaElement(), candidateFields[i]);
 				if (!Modifier.isTransient(candidateFields[i].getModifiers()))
 					selectedFieldsToBindings.put(candidateFields[i].getJavaElement(), candidateFields[i]);
 			}
 		}
 		IType type= (IType)fTypeBinding.getJavaElement();
 		IField[] allFields= type.getFields();
 		fFields= new ArrayList<IVariableBinding>();
 		populateMembers(fFields, allFields, fieldsToBindings);
 		fSelectedFields= new ArrayList<IVariableBinding>();
 		populateMembers(fSelectedFields, allFields, selectedFieldsToBindings);

 		IMethodBinding[] candidateMethods= fTypeBinding.getDeclaredMethods();
 		HashMap<IJavaElement, IMethodBinding> methodsToBindings= new HashMap<IJavaElement, IMethodBinding>();
 		for (int i= 0; i < candidateMethods.length; i++) {
 			if (!Modifier.isStatic(candidateMethods[i].getModifiers()) && candidateMethods[i].getParameterTypes().length == 0
 					&& !candidateMethods[i].getReturnType().getName().equals("void") && !candidateMethods[i].getName().equals("toString") && !candidateMethods[i].getName().equals("clone")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 				methodsToBindings.put(candidateMethods[i].getJavaElement(), candidateMethods[i]);
 			}
 		}
 		fMethods= new ArrayList<IMethodBinding>();
 		populateMembers(fMethods, type.getMethods(), methodsToBindings);

 		fInheritedFields= new ArrayList<IVariableBinding>();
 		fInheritedMethods= new ArrayList<IMethodBinding>();
 		ITypeBinding typeBinding= fTypeBinding;
 		while ((typeBinding= typeBinding.getSuperclass()) != null) {
 			type = (IType)typeBinding.getJavaElement();
 			candidateFields= typeBinding.getDeclaredFields();
 			for (int i= 0; i < candidateFields.length; i++) {
 				if (!Modifier.isPrivate(candidateFields[i].getModifiers()) && !Modifier.isStatic(candidateFields[i].getModifiers()) && !contains(fFields, candidateFields[i])
 						&& !contains(fInheritedFields, candidateFields[i])) {
 					fieldsToBindings.put(candidateFields[i].getJavaElement(), candidateFields[i]);
 				}
 			}
 			populateMembers(fInheritedFields, type.getFields(), fieldsToBindings);

 			candidateMethods= typeBinding.getDeclaredMethods();
 			for (int i= 0; i < candidateMethods.length; i++) {
 				if (!Modifier.isPrivate(candidateMethods[i].getModifiers())
 						&& !Modifier.isStatic(candidateMethods[i].getModifiers())
 						&& candidateMethods[i].getParameterTypes().length == 0
 						&& !candidateMethods[i].getReturnType().getName().equals("void") && !contains(fMethods, candidateMethods[i]) && !contains(fInheritedMethods, candidateMethods[i]) && !candidateMethods[i].getName().equals("clone")) { //$NON-NLS-1$ //$NON-NLS-2$
 					methodsToBindings.put(candidateMethods[i].getJavaElement(), candidateMethods[i]);
 				}
 			}
 			populateMembers(fInheritedMethods, type.getMethods(), methodsToBindings);
 		}

 		return true;
 	}

 	/**
 	 * Populates <code>result</code> with the bindings from <code>membersToBindings</code>, sorted
 	 * in the order of <code>allMembers</code>.
 	 *
 	 * @param result list of bindings from membersToBindings, sorted in source order
 	 * @param allMembers all member elements in source order
 	 * @param membersToBindings map from {@link IMember} to {@link IBinding}
 	 * @since 3.6
 	 */
 	private static <T extends IBinding> void populateMembers(List<T> result, IMember[] allMembers, HashMap<IJavaElement, T> membersToBindings) {
 		for (int i= 0; i < allMembers.length; i++) {
 			T memberBinding= membersToBindings.remove(allMembers[i]);
 			if (memberBinding != null) {
 				result.add(memberBinding);
 			}
 		}
 	}

 	private static <T extends IBinding> boolean contains(List<T> inheritedFields, T member) {
 		for (Iterator<T> iterator= inheritedFields.iterator(); iterator.hasNext();) {
 			T object= iterator.next();
 			if (object instanceof IVariableBinding && member instanceof IVariableBinding)
 				if (((IVariableBinding) object).getName().equals(((IVariableBinding) member).getName()))
 					return true;
 			if (object instanceof IMethodBinding && member instanceof IMethodBinding)
 				if (((IMethodBinding) object).getName().equals(((IMethodBinding) member).getName()))
 					return true;
 		}
 		return false;
 	}

 	@Override
 	String getAlreadyImplementedErrorMethodName() {
 		return ActionMessages.GenerateToStringAction_tostring;
 	}

 	@Override
 	boolean isMethodAlreadyImplemented(ITypeBinding typeBinding) {
 		return new ToStringInfo(typeBinding).foundToString;
 	}

 	@Override
 	String getErrorCaption() {
 		return ActionMessages.GenerateToStringAction_error_caption;
 	}

 	@Override
 	String getNoMembersError() {
 		//no members error never occurs
 		return null;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2008, 2011 Mateusz Matela 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:
	* Mateusz Matela <mateusz.matela@gmail.com> - [code manipulation] [dcr] toString() builder wizard - https://bugs.eclipse.org/bugs/show_bug.cgi?id=26070
	* Mateusz Matela <mateusz.matela@gmail.com> - [toString] toString() generator: Fields in declaration order - https://bugs.eclipse.org/bugs/show_bug.cgi?id=279924
	*******************************************************************************/
	package org.eclipse.jdt.ui.actions;

	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.swt.widgets.Shell;

	import org.eclipse.core.resources.IWorkspaceRunnable;

	import org.eclipse.ui.IWorkbenchSite;
	import org.eclipse.ui.PlatformUI;

	import org.eclipse.ltk.core.refactoring.RefactoringStatus;

	import org.eclipse.jdt.core.IField;
	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.IMember;
	import org.eclipse.jdt.core.IType;
	import org.eclipse.jdt.core.JavaCore;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jdt.core.dom.IBinding;
	import org.eclipse.jdt.core.dom.IMethodBinding;
	import org.eclipse.jdt.core.dom.ITypeBinding;
	import org.eclipse.jdt.core.dom.IVariableBinding;
	import org.eclipse.jdt.core.dom.Modifier;

	import org.eclipse.jdt.internal.corext.codemanipulation.CodeGenerationSettings;
	import org.eclipse.jdt.internal.corext.codemanipulation.tostringgeneration.GenerateToStringOperation;
	import org.eclipse.jdt.internal.corext.codemanipulation.tostringgeneration.ToStringGenerationSettings;
	import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
	import org.eclipse.jdt.internal.corext.util.Messages;

	import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
	import org.eclipse.jdt.internal.ui.actions.ActionMessages;
	import org.eclipse.jdt.internal.ui.actions.SelectionConverter;
	import org.eclipse.jdt.internal.ui.dialogs.GenerateToStringDialog;
	import org.eclipse.jdt.internal.ui.dialogs.SourceActionDialog;
	import org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor;
	import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels;

	/**
	* Adds method implementations for <code>{@link java.lang.Object#toString()}</code> The action opens a
	* dialog from which the user can choose the fields and methods to be considered.
	* <p>
	* Will open the parent compilation unit in a Java editor. The result is
	* unsaved, so the user can decide if the changes are acceptable.
	* <p>
	* The action is applicable to structured selections containing elements of type
	* {@link org.eclipse.jdt.core.IType}.
	*
	* <p>
	* This class may be instantiated; it is not intended to be subclassed.
	* </p>
	*
	* @since 3.5
	*
	* @noextend This class is not intended to be subclassed by clients.
	*/
	public class GenerateToStringAction extends GenerateMethodAbstractAction {

	private static final String METHODNAME_TO_STRING= "toString"; //$NON-NLS-1$

	private List<IVariableBinding> fFields;

	private List<IVariableBinding> fInheritedFields;

	private List<IVariableBinding> fSelectedFields;

	private List<IMethodBinding> fMethods;

	private List<IMethodBinding> fInheritedMethods;

	private GenerateToStringOperation operation;

	private class ToStringInfo {

	public boolean foundToString= false;

	public boolean foundFinalToString= false;

	public ToStringInfo(ITypeBinding typeBinding) {
	IMethodBinding[] declaredMethods= typeBinding.getDeclaredMethods();

	for (int i= 0; i < declaredMethods.length; i++) {
	if (declaredMethods[i].getName().equals(METHODNAME_TO_STRING) && declaredMethods[i].getParameterTypes().length == 0) {
	this.foundToString= true;
	if (Modifier.isFinal(declaredMethods[i].getModifiers()))
	this.foundFinalToString= true;
	}
	}
	}
	}

	/**
	* Creates a new generate tostring action.
	* <p>
	* The action requires that the selection provided by the site's selection
	* provider is of type
	* {@link org.eclipse.jface.viewers.IStructuredSelection}.
	*
	* @param site the workbench site providing context information for this
	* action
	*/
	public GenerateToStringAction(IWorkbenchSite site) {
	super(site);
	setText(ActionMessages.GenerateToStringAction_label);
	setDescription(ActionMessages.GenerateToStringAction_description);
	setToolTipText(ActionMessages.GenerateToStringAction_tooltip);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.GENERATE_TOSTRING_ACTION);
	}

	/**
	* Note: This constructor is for internal use only. Clients should not call
	* this constructor.
	*
	* @param editor the compilation unit editor
	*
	* @noreference This constructor is not intended to be referenced by clients.
	*/
	public GenerateToStringAction(CompilationUnitEditor editor) {
	this(editor.getEditorSite());
	fEditor= editor;
	setEnabled((fEditor != null && SelectionConverter.canOperateOn(fEditor)));
	}

	@Override
	RefactoringStatus checkMember(Object object) {
	// no conditions need to be checked
	return new RefactoringStatus();
	}

	@Override
	RefactoringStatus checkGeneralConditions(IType type, CodeGenerationSettings settings, Object[] selected) {
	return operation.checkConditions();
	}

	@Override
	RefactoringStatus checkSuperClass(ITypeBinding superclass) {
	RefactoringStatus status= new RefactoringStatus();
	if (new ToStringInfo(superclass).foundFinalToString) {
	status.addError(Messages.format(ActionMessages.GenerateMethodAbstractAction_final_method_in_superclass_error, new String[] {
	Messages.format(ActionMessages.GenerateMethodAbstractAction_super_class, BasicElementLabels.getJavaElementName(superclass.getQualifiedName())),
	ActionMessages.GenerateToStringAction_tostring }), createRefactoringStatusContext(superclass.getJavaElement()));
	}
	return status;
	}

	@Override
	SourceActionDialog createDialog(Shell shell, IType type) throws JavaModelException {
	IVariableBinding[] fieldBindings= fFields.toArray(new IVariableBinding[0]);
	IVariableBinding[] inheritedFieldBindings= fInheritedFields.toArray(new IVariableBinding[0]);
	IVariableBinding[] selectedFieldBindings= fSelectedFields.toArray(new IVariableBinding[0]);
	IMethodBinding[] methodBindings= fMethods.toArray(new IMethodBinding[0]);
	IMethodBinding[] inheritededMethodBindings= fInheritedMethods.toArray(new IMethodBinding[0]);
	return new GenerateToStringDialog(shell, fEditor, type, fieldBindings, inheritedFieldBindings, selectedFieldBindings, methodBindings, inheritededMethodBindings);
	}

	@Override
	IWorkspaceRunnable createOperation(Object[] selectedBindings, CodeGenerationSettings settings, boolean regenerate, IJavaElement type, IJavaElement elementPosition) {
	return operation= GenerateToStringOperation.createOperation(fTypeBinding, selectedBindings, fUnit, elementPosition, (ToStringGenerationSettings)settings);
	}

	@Override
	CodeGenerationSettings createSettings(IType type, SourceActionDialog dialog) {
	ToStringGenerationSettings settings= ((GenerateToStringDialog) dialog).getGenerationSettings();
	super.createSettings(type, dialog).setSettings(settings);
	settings.createComments= dialog.getGenerateComment();
	settings.useBlocks= useBlocks(type.getJavaProject());
	String version= fUnit.getJavaElement().getJavaProject().getOption(JavaCore.COMPILER_SOURCE, true);
	settings.is50orHigher= !JavaModelUtil.isVersionLessThan(version, JavaCore.VERSION_1_5);
	settings.is60orHigher= !JavaModelUtil.isVersionLessThan(version, JavaCore.VERSION_1_6);
	return settings;
	}

	@Override
	boolean generateCandidates() throws JavaModelException {
	IVariableBinding[] candidateFields= fTypeBinding.getDeclaredFields();
	HashMap<IJavaElement, IVariableBinding> fieldsToBindings= new HashMap<IJavaElement, IVariableBinding>();
	HashMap<IJavaElement, IVariableBinding> selectedFieldsToBindings= new HashMap<IJavaElement, IVariableBinding>();
	for (int i= 0; i < candidateFields.length; i++) {
	if (!Modifier.isStatic(candidateFields[i].getModifiers())) {
	fieldsToBindings.put(candidateFields[i].getJavaElement(), candidateFields[i]);
	if (!Modifier.isTransient(candidateFields[i].getModifiers()))
	selectedFieldsToBindings.put(candidateFields[i].getJavaElement(), candidateFields[i]);
	}
	}
	IType type= (IType)fTypeBinding.getJavaElement();
	IField[] allFields= type.getFields();
	fFields= new ArrayList<IVariableBinding>();
	populateMembers(fFields, allFields, fieldsToBindings);
	fSelectedFields= new ArrayList<IVariableBinding>();
	populateMembers(fSelectedFields, allFields, selectedFieldsToBindings);

	IMethodBinding[] candidateMethods= fTypeBinding.getDeclaredMethods();
	HashMap<IJavaElement, IMethodBinding> methodsToBindings= new HashMap<IJavaElement, IMethodBinding>();
	for (int i= 0; i < candidateMethods.length; i++) {
	if (!Modifier.isStatic(candidateMethods[i].getModifiers()) && candidateMethods[i].getParameterTypes().length == 0
	&& !candidateMethods[i].getReturnType().getName().equals("void") && !candidateMethods[i].getName().equals("toString") && !candidateMethods[i].getName().equals("clone")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	methodsToBindings.put(candidateMethods[i].getJavaElement(), candidateMethods[i]);
	}
	}
	fMethods= new ArrayList<IMethodBinding>();
	populateMembers(fMethods, type.getMethods(), methodsToBindings);

	fInheritedFields= new ArrayList<IVariableBinding>();
	fInheritedMethods= new ArrayList<IMethodBinding>();
	ITypeBinding typeBinding= fTypeBinding;
	while ((typeBinding= typeBinding.getSuperclass()) != null) {
	type = (IType)typeBinding.getJavaElement();
	candidateFields= typeBinding.getDeclaredFields();
	for (int i= 0; i < candidateFields.length; i++) {
	if (!Modifier.isPrivate(candidateFields[i].getModifiers()) && !Modifier.isStatic(candidateFields[i].getModifiers()) && !contains(fFields, candidateFields[i])
	&& !contains(fInheritedFields, candidateFields[i])) {
	fieldsToBindings.put(candidateFields[i].getJavaElement(), candidateFields[i]);
	}
	}
	populateMembers(fInheritedFields, type.getFields(), fieldsToBindings);

	candidateMethods= typeBinding.getDeclaredMethods();
	for (int i= 0; i < candidateMethods.length; i++) {
	if (!Modifier.isPrivate(candidateMethods[i].getModifiers())
	&& !Modifier.isStatic(candidateMethods[i].getModifiers())
	&& candidateMethods[i].getParameterTypes().length == 0
	&& !candidateMethods[i].getReturnType().getName().equals("void") && !contains(fMethods, candidateMethods[i]) && !contains(fInheritedMethods, candidateMethods[i]) && !candidateMethods[i].getName().equals("clone")) { //$NON-NLS-1$ //$NON-NLS-2$
	methodsToBindings.put(candidateMethods[i].getJavaElement(), candidateMethods[i]);
	}
	}
	populateMembers(fInheritedMethods, type.getMethods(), methodsToBindings);
	}

	return true;
	}

	/**
	* Populates <code>result</code> with the bindings from <code>membersToBindings</code>, sorted
	* in the order of <code>allMembers</code>.
	*
	* @param result list of bindings from membersToBindings, sorted in source order
	* @param allMembers all member elements in source order
	* @param membersToBindings map from {@link IMember} to {@link IBinding}
	* @since 3.6
	*/
	private static <T extends IBinding> void populateMembers(List<T> result, IMember[] allMembers, HashMap<IJavaElement, T> membersToBindings) {
	for (int i= 0; i < allMembers.length; i++) {
	T memberBinding= membersToBindings.remove(allMembers[i]);
	if (memberBinding != null) {
	result.add(memberBinding);
	}
	}
	}

	private static <T extends IBinding> boolean contains(List<T> inheritedFields, T member) {
	for (Iterator<T> iterator= inheritedFields.iterator(); iterator.hasNext();) {
	T object= iterator.next();
	if (object instanceof IVariableBinding && member instanceof IVariableBinding)
	if (((IVariableBinding) object).getName().equals(((IVariableBinding) member).getName()))
	return true;
	if (object instanceof IMethodBinding && member instanceof IMethodBinding)
	if (((IMethodBinding) object).getName().equals(((IMethodBinding) member).getName()))
	return true;
	}
	return false;
	}

	@Override
	String getAlreadyImplementedErrorMethodName() {
	return ActionMessages.GenerateToStringAction_tostring;
	}

	@Override
	boolean isMethodAlreadyImplemented(ITypeBinding typeBinding) {
	return new ToStringInfo(typeBinding).foundToString;
	}

	@Override
	String getErrorCaption() {
	return ActionMessages.GenerateToStringAction_error_caption;
	}

	@Override
	String getNoMembersError() {
	//no members error never occurs
	return null;
	}

	}