| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * 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.dom.CompilationUnit; |
| |
| import org.eclipse.jdt.internal.corext.fix.CleanUpConstants; |
| import org.eclipse.jdt.internal.corext.fix.ControlStatementsFix; |
| |
| import org.eclipse.jdt.ui.cleanup.CleanUpContext; |
| import org.eclipse.jdt.ui.cleanup.CleanUpRequirements; |
| import org.eclipse.jdt.ui.cleanup.ICleanUpFix; |
| |
| public class ControlStatementsCleanUp extends AbstractCleanUp { |
| |
| public ControlStatementsCleanUp(Map<String, String> options) { |
| super(options); |
| } |
| |
| public ControlStatementsCleanUp() { |
| super(); |
| } |
| |
| @Override |
| public CleanUpRequirements getRequirements() { |
| return new CleanUpRequirements(requireAST(), false, false, null); |
| } |
| |
| private boolean requireAST() { |
| boolean useBlocks= isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS); |
| |
| if (!useBlocks) |
| return false; |
| |
| return isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_ALWAYS) || |
| isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_NEVER) || |
| isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_NO_FOR_RETURN_AND_THROW); |
| } |
| |
| @Override |
| public ICleanUpFix createFix(CleanUpContext context) throws CoreException { |
| CompilationUnit compilationUnit= context.getAST(); |
| if (compilationUnit == null) |
| return null; |
| |
| boolean useBlocks= isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS); |
| if (!useBlocks) |
| return null; |
| |
| return ControlStatementsFix.createCleanUp(compilationUnit, |
| isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_ALWAYS), |
| isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_NEVER), |
| isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_NO_FOR_RETURN_AND_THROW)); |
| } |
| |
| @Override |
| public String[] getStepDescriptions() { |
| List<String> result= new ArrayList<>(); |
| if (isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS) && isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_ALWAYS)) |
| result.add(MultiFixMessages.CodeStyleMultiFix_ConvertSingleStatementInControlBodyToBlock_description); |
| if (isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS) && isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_NEVER)) |
| result.add(MultiFixMessages.ControlStatementsCleanUp_RemoveUnnecessaryBlocks_description); |
| if (isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS) && isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_NO_FOR_RETURN_AND_THROW)) |
| result.add(MultiFixMessages.ControlStatementsCleanUp_RemoveUnnecessaryBlocksWithReturnOrThrow_description); |
| |
| return result.toArray(new String[result.size()]); |
| } |
| |
| @Override |
| public String getPreview() { |
| StringBuilder buf= new StringBuilder(); |
| |
| if (isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS) && isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_ALWAYS)) { |
| buf.append("if (obj == null) {\n"); //$NON-NLS-1$ |
| buf.append(" throw new IllegalArgumentException();\n"); //$NON-NLS-1$ |
| buf.append("}\n"); //$NON-NLS-1$ |
| |
| buf.append("if (ids.length > 0) {\n"); //$NON-NLS-1$ |
| buf.append(" System.out.println(ids[0]);\n"); //$NON-NLS-1$ |
| buf.append("} else {\n"); //$NON-NLS-1$ |
| buf.append(" return;\n"); //$NON-NLS-1$ |
| buf.append("}\n"); //$NON-NLS-1$ |
| } else if (isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS) && isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_NEVER)){ |
| buf.append("if (obj == null)\n"); //$NON-NLS-1$ |
| buf.append(" throw new IllegalArgumentException();\n"); //$NON-NLS-1$ |
| buf.append("\n"); //$NON-NLS-1$ |
| |
| buf.append("if (ids.length > 0)\n"); //$NON-NLS-1$ |
| buf.append(" System.out.println(ids[0]);\n"); //$NON-NLS-1$ |
| buf.append("else\n"); //$NON-NLS-1$ |
| buf.append(" return;\n"); //$NON-NLS-1$ |
| buf.append("\n"); //$NON-NLS-1$ |
| } else if (isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS) && isEnabled(CleanUpConstants.CONTROL_STATEMENTS_USE_BLOCKS_NO_FOR_RETURN_AND_THROW)) { |
| buf.append("if (obj == null)\n"); //$NON-NLS-1$ |
| buf.append(" throw new IllegalArgumentException();\n"); //$NON-NLS-1$ |
| buf.append("\n"); //$NON-NLS-1$ |
| |
| buf.append("if (ids.length > 0) {\n"); //$NON-NLS-1$ |
| buf.append(" System.out.println(ids[0]);\n"); //$NON-NLS-1$ |
| buf.append("} else \n"); //$NON-NLS-1$ |
| buf.append(" return;\n"); //$NON-NLS-1$ |
| buf.append("\n"); //$NON-NLS-1$ |
| } else { |
| buf.append("if (obj == null) {\n"); //$NON-NLS-1$ |
| buf.append(" throw new IllegalArgumentException();\n"); //$NON-NLS-1$ |
| buf.append("}\n"); //$NON-NLS-1$ |
| |
| buf.append("if (ids.length > 0) {\n"); //$NON-NLS-1$ |
| buf.append(" System.out.println(ids[0]);\n"); //$NON-NLS-1$ |
| buf.append("} else \n"); //$NON-NLS-1$ |
| buf.append(" return;\n"); //$NON-NLS-1$ |
| buf.append("\n"); //$NON-NLS-1$ |
| } |
| |
| return buf.toString(); |
| } |
| |
| } |