Copyright (c) 2000, 2006 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
/*******************************************************************************
 * Copyright (c) 2000, 2006 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.text.edits;

import org.eclipse.core.runtime.Assert;

import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;

Text edit to insert a text at a given position in a
document.

An insert edit is equivalent to ReplaceEdit(offset, 0, text)

Since:
3.0/**
 * Text edit to insert a text at a given position in a
 * document.
 * <p>
 * An insert edit is equivalent to <code>ReplaceEdit(offset, 0, text)
 * </code>
 *
 * @since 3.0
 */
public final class InsertEdit extends TextEdit {

	private String fText;

	
Constructs a new insert edit.
Params:
offset – the insertion offset
text – the text to insert/**
	 * Constructs a new insert edit.
	 *
	 * @param offset the insertion offset
	 * @param text the text to insert
	 */
	public InsertEdit(int offset, String text) {
		super(offset, 0);
		Assert.isNotNull(text);
		fText= text;
	}

	/*
	 * Copy constructor
	 */
	private InsertEdit(InsertEdit other) {
		super(other);
		fText= other.fText;
	}

	
Returns the text to be inserted.
Returns:
the edit's text./**
	 * Returns the text to be inserted.
	 *
	 * @return the edit's text.
	 */
	public String getText() {
		return fText;
	}

	@Override
	protected TextEdit doCopy() {
		return new InsertEdit(this);
	}

	@Override
	protected void accept0(TextEditVisitor visitor) {
		boolean visitChildren= visitor.visit(this);
		if (visitChildren) {
			acceptChildren(visitor);
		}
	}

	@Override
	int performDocumentUpdating(IDocument document) throws BadLocationException {
		document.replace(getOffset(), getLength(), fText);
		fDelta= fText.length() - getLength();
		return fDelta;
	}

	@Override
	boolean deleteChildren() {
		return false;
	}

	@Override
	void internalToString(StringBuilder buffer, int indent) {
		super.internalToString(buffer, indent);
		buffer.append(" <<").append(fText); //$NON-NLS-1$
	}
}