/*******************************************************************************
* Copyright (c) 2005, 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.corext.refactoring.scripting;
import java.util.StringTokenizer;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.ltk.core.refactoring.Refactoring;
import org.eclipse.ltk.core.refactoring.RefactoringDescriptor;
import org.eclipse.ltk.core.refactoring.participants.RefactoringArguments;
import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
import org.eclipse.wst.jsdt.core.IJavaScriptElement;
import org.eclipse.wst.jsdt.core.IFunction;
import org.eclipse.wst.jsdt.core.ISourceRange;
import org.eclipse.wst.jsdt.core.JavaScriptModelException;
import org.eclipse.wst.jsdt.core.dom.AST;
import org.eclipse.wst.jsdt.core.dom.ASTParser;
import org.eclipse.wst.jsdt.core.dom.JavaScriptUnit;
import org.eclipse.wst.jsdt.core.refactoring.IJavaScriptRefactorings;
import org.eclipse.wst.jsdt.internal.corext.refactoring.JDTRefactoringContribution;
import org.eclipse.wst.jsdt.internal.corext.refactoring.JDTRefactoringDescriptor;
import org.eclipse.wst.jsdt.internal.corext.refactoring.JavaRefactoringArguments;
import org.eclipse.wst.jsdt.internal.corext.refactoring.RefactoringCoreMessages;
import org.eclipse.wst.jsdt.internal.corext.refactoring.code.InlineMethodRefactoring;
import org.eclipse.wst.jsdt.internal.corext.util.Messages;
import org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin;
/**
* Refactoring contribution for the inline method refactoring.
*
*
*/
public final class InlineMethodRefactoringContribution extends JDTRefactoringContribution {
/**
* {@inheritDoc}
*/
public final Refactoring createRefactoring(final RefactoringDescriptor descriptor) throws CoreException {
int selectionStart= -1;
int selectionLength= -1;
IJavaScriptUnit unit= null;
JavaScriptUnit node= null;
RefactoringArguments arguments= null;
if (descriptor instanceof JDTRefactoringDescriptor) {
final JDTRefactoringDescriptor extended= (JDTRefactoringDescriptor) descriptor;
arguments= extended.createArguments();
}
if (arguments instanceof JavaRefactoringArguments) {
final JavaRefactoringArguments extended= (JavaRefactoringArguments) arguments;
final String selection= extended.getAttribute(JDTRefactoringDescriptor.ATTRIBUTE_SELECTION);
if (selection != null) {
int offset= -1;
int length= -1;
final StringTokenizer tokenizer= new StringTokenizer(selection);
if (tokenizer.hasMoreTokens())
offset= Integer.valueOf(tokenizer.nextToken()).intValue();
if (tokenizer.hasMoreTokens())
length= Integer.valueOf(tokenizer.nextToken()).intValue();
if (offset >= 0 && length >= 0) {
selectionStart= offset;
selectionLength= length;
} else
throw new CoreException(new Status(IStatus.ERROR, JavaScriptPlugin.getPluginId(), 0, Messages.format(RefactoringCoreMessages.InitializableRefactoring_illegal_argument, new Object[] { selection, JDTRefactoringDescriptor.ATTRIBUTE_SELECTION}), null));
}
final String handle= extended.getAttribute(JDTRefactoringDescriptor.ATTRIBUTE_INPUT);
if (handle != null) {
final IJavaScriptElement element= JDTRefactoringDescriptor.handleToElement(extended.getProject(), handle, false);
if (element == null || !element.exists())
throw new CoreException(new Status(IStatus.ERROR, JavaScriptPlugin.getPluginId(), 0, Messages.format(RefactoringCoreMessages.InitializableRefactoring_inputs_do_not_exist, new String[] { RefactoringCoreMessages.InlineMethodRefactoring_name, IJavaScriptRefactorings.INLINE_METHOD}), null));
else {
if (element instanceof IJavaScriptUnit) {
unit= (IJavaScriptUnit) element;
if (selection == null)
throw new CoreException(new Status(IStatus.ERROR, JavaScriptPlugin.getPluginId(), 0, Messages.format(RefactoringCoreMessages.InitializableRefactoring_argument_not_exist, JDTRefactoringDescriptor.ATTRIBUTE_SELECTION), null));
} else if (element instanceof IFunction) {
final IFunction method= (IFunction) element;
try {
final ISourceRange range= method.getNameRange();
if (range != null) {
selectionStart= range.getOffset();
selectionLength= range.getLength();
} else
throw new CoreException(new Status(IStatus.ERROR, JavaScriptPlugin.getPluginId(), 0, Messages.format(RefactoringCoreMessages.InitializableRefactoring_illegal_argument, new Object[] { handle, JDTRefactoringDescriptor.ATTRIBUTE_INPUT}), null));
} catch (JavaScriptModelException exception) {
throw new CoreException(new Status(IStatus.ERROR, JavaScriptPlugin.getPluginId(), 0, Messages.format(RefactoringCoreMessages.InitializableRefactoring_inputs_do_not_exist, new String[] { RefactoringCoreMessages.InlineMethodRefactoring_name, IJavaScriptRefactorings.INLINE_METHOD}), exception));
}
unit= method.getJavaScriptUnit();
} else
throw new CoreException(new Status(IStatus.ERROR, JavaScriptPlugin.getPluginId(), 0, Messages.format(RefactoringCoreMessages.InitializableRefactoring_illegal_argument, new Object[] { handle, JDTRefactoringDescriptor.ATTRIBUTE_INPUT}), null));
final ASTParser parser= ASTParser.newParser(AST.JLS3);
parser.setResolveBindings(true);
parser.setSource(unit);
node= (JavaScriptUnit) parser.createAST(null);
}
} else
throw new CoreException(new Status(IStatus.ERROR, JavaScriptPlugin.getPluginId(), 0, Messages.format(RefactoringCoreMessages.InitializableRefactoring_argument_not_exist, JDTRefactoringDescriptor.ATTRIBUTE_INPUT), null));
} else
throw new CoreException(new Status(IStatus.ERROR, JavaScriptPlugin.getPluginId(), 0, RefactoringCoreMessages.InitializableRefactoring_inacceptable_arguments, null));
return InlineMethodRefactoring.create(unit, node, selectionStart, selectionLength);
}
}