| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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.ui.fix; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| |
| import org.eclipse.jdt.internal.corext.fix.CleanUpConstants; |
| import org.eclipse.jdt.internal.corext.fix.ExpressionsFix; |
| import org.eclipse.jdt.internal.corext.fix.IFix; |
| |
| import org.eclipse.jdt.ui.text.java.IProblemLocation; |
| |
| public class ExpressionsCleanUp extends AbstractCleanUp { |
| |
| public ExpressionsCleanUp(Map options) { |
| super(options); |
| } |
| |
| public ExpressionsCleanUp() { |
| super(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean requireAST(ICompilationUnit unit) throws CoreException { |
| boolean usePrentheses= isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES); |
| if (!usePrentheses) |
| return false; |
| |
| return isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_ALWAYS) || |
| isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_NEVER); |
| } |
| |
| public IFix createFix(CompilationUnit compilationUnit) throws CoreException { |
| if (compilationUnit == null) |
| return null; |
| |
| boolean usePrentheses= isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES); |
| if (!usePrentheses) |
| return null; |
| |
| return ExpressionsFix.createCleanUp(compilationUnit, |
| isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_ALWAYS), |
| isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_NEVER)); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public IFix createFix(CompilationUnit compilationUnit, IProblemLocation[] problems) throws CoreException { |
| return createFix(compilationUnit); |
| } |
| |
| public Map getRequiredOptions() { |
| return null; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public String[] getDescriptions() { |
| List result= new ArrayList(); |
| if (isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES) && isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_ALWAYS)) |
| result.add(MultiFixMessages.ExpressionsCleanUp_addParanoiac_description); |
| |
| if (isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES) && isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_NEVER)) |
| result.add(MultiFixMessages.ExpressionsCleanUp_removeUnnecessary_description); |
| |
| return (String[])result.toArray(new String[result.size()]); |
| } |
| |
| public String getPreview() { |
| StringBuffer buf= new StringBuffer(); |
| |
| if (isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES) && isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_ALWAYS)) { |
| buf.append("boolean b= (((i > 0) && (i < 10)) || (i == 50));\n"); //$NON-NLS-1$ |
| } else if (isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES) && isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_NEVER)) { |
| buf.append("boolean b= i > 0 && i < 10 || i == 50;\n"); //$NON-NLS-1$ |
| } else { |
| buf.append("boolean b= (i > 0 && i < 10 || i == 50);\n"); //$NON-NLS-1$ |
| } |
| |
| return buf.toString(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean canFix(CompilationUnit compilationUnit, IProblemLocation problem) throws CoreException { |
| if (isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES) && isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_ALWAYS)) { |
| IFix fix= ExpressionsFix.createAddParanoidalParenthesisFix(compilationUnit, new ASTNode[] {problem.getCoveredNode(compilationUnit)}); |
| if (fix != null) |
| return true; |
| } |
| if (isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES) && isEnabled(CleanUpConstants.EXPRESSIONS_USE_PARENTHESES_NEVER)) { |
| IFix fix= ExpressionsFix.createRemoveUnnecessaryParenthesisFix(compilationUnit, new ASTNode[] {problem.getCoveredNode(compilationUnit)}); |
| if (fix != null) |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public int maximalNumberOfFixes(CompilationUnit compilationUnit) { |
| return -1; |
| } |
| } |