/*******************************************************************************
* Copyright (c) 2012-2015 Codenvy, S.A.
* 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:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.ide.ext.java.jdt.text.edits;
import org.eclipse.che.ide.api.editor.text.BadLocationException;
import org.eclipse.che.ide.ext.java.jdt.text.Document;
/**
* Text edit to delete a range in a document.
* <p/>
* A delete edit is equivalent to <code>ReplaceEdit(
* offset, length, "")</code>.
*/
public final class DeleteEdit extends TextEdit {
/**
* Constructs a new delete edit.
*
* @param offset
* the offset of the range to replace
* @param length
* the length of the range to replace
*/
public DeleteEdit(int offset, int length) {
super(offset, length);
}
/* Copy constructor */
private DeleteEdit(DeleteEdit other) {
super(other);
}
/* @see TextEdit#doCopy */
protected TextEdit doCopy() {
return new DeleteEdit(this);
}
/* @see TextEdit#accept0 */
protected void accept0(TextEditVisitor visitor) {
boolean visitChildren = visitor.visit(this);
if (visitChildren) {
acceptChildren(visitor);
}
}
/* @see TextEdit#performDocumentUpdating */
int performDocumentUpdating(Document document) throws BadLocationException {
document.replace(getOffset(), getLength(), ""); //$NON-NLS-1$
fDelta = -getLength();
return fDelta;
}
/* @see TextEdit#deleteChildren */
boolean deleteChildren() {
return true;
}
}