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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/*******************************************************************************
 * 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
 */
public final class InsertEdit extends TextEdit {

	private String fText;

	/**
	 * 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.
	 *
	 * @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); //$NON-NLS-1$
	}
}