/*******************************************************************************
* Copyright (c) 2000, 2008 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.wst.jsdt.internal.ui.fix;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
import org.eclipse.wst.jsdt.core.dom.JavaScriptUnit;
import org.eclipse.wst.jsdt.internal.corext.fix.CleanUpConstants;
import org.eclipse.wst.jsdt.internal.corext.fix.IFix;
import org.eclipse.wst.jsdt.internal.corext.fix.VariableDeclarationFix;
import org.eclipse.wst.jsdt.ui.text.java.IProblemLocation;
public class VariableDeclarationCleanUp extends AbstractCleanUp {
public VariableDeclarationCleanUp(Map options) {
super(options);
}
public VariableDeclarationCleanUp() {
super();
}
/**
* {@inheritDoc}
*/
public boolean requireAST(IJavaScriptUnit unit) throws CoreException {
boolean addFinal= isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL);
if (!addFinal)
return false;
return isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_PRIVATE_FIELDS) ||
isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_PARAMETERS) ||
isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_LOCAL_VARIABLES);
}
/**
* {@inheritDoc}
*/
public IFix createFix(JavaScriptUnit compilationUnit) throws CoreException {
if (compilationUnit == null)
return null;
boolean addFinal= isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL);
if (!addFinal)
return null;
return VariableDeclarationFix.createCleanUp(compilationUnit,
isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_PRIVATE_FIELDS),
isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_PARAMETERS),
isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_LOCAL_VARIABLES));
}
/**
* {@inheritDoc}
*/
public IFix createFix(JavaScriptUnit compilationUnit, IProblemLocation[] problems) throws CoreException {
//No warnings generated by the compiler
return null;
}
/**
* {@inheritDoc}
*/
public Map getRequiredOptions() {
return null;
}
/**
* {@inheritDoc}
*/
public String[] getDescriptions() {
List result= new ArrayList();
if (isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL) && isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_PRIVATE_FIELDS))
result.add(MultiFixMessages.VariableDeclarationCleanUp_AddFinalField_description);
if (isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL) && isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_PARAMETERS))
result.add(MultiFixMessages.VariableDeclarationCleanUp_AddFinalParameters_description);
if (isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL) && isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_LOCAL_VARIABLES))
result.add(MultiFixMessages.VariableDeclarationCleanUp_AddFinalLocals_description);
return (String[])result.toArray(new String[result.size()]);
}
public String getPreview() {
StringBuffer buf= new StringBuffer();
//
// if (isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL) && isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_PRIVATE_FIELDS)) {
// buf.append("private final int i= 0;\n"); //$NON-NLS-1$
// } else {
// buf.append("private int i= 0;\n"); //$NON-NLS-1$
// }
// if (isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL) && isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_PARAMETERS)) {
// buf.append("public void foo(final int j) {\n"); //$NON-NLS-1$
// } else {
// buf.append("public void foo(int j) {\n"); //$NON-NLS-1$
// }
// if (isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL) && isEnabled(CleanUpConstants.VARIABLE_DECLARATIONS_USE_FINAL_LOCAL_VARIABLES)) {
// buf.append(" final int k;\n"); //$NON-NLS-1$
// buf.append(" int h;\n"); //$NON-NLS-1$
// buf.append(" h= 0;\n"); //$NON-NLS-1$
// } else {
// buf.append(" int k, h;\n"); //$NON-NLS-1$
// buf.append(" h= 0;\n"); //$NON-NLS-1$
// }
// buf.append("}\n"); //$NON-NLS-1$
//
return buf.toString();
}
/**
* {@inheritDoc}
*/
public boolean canFix(JavaScriptUnit compilationUnit, IProblemLocation problem) throws CoreException {
return false;
}
/**
* {@inheritDoc}
*/
public int maximalNumberOfFixes(JavaScriptUnit compilationUnit) {
return -1;
}
}