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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) 2005 Contributors.
 * All rights reserved.
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Public License v 2.0
 * which accompanies this distribution and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
 *
 * Contributors:
 *   Adrian Colyer			Initial implementation
 * ******************************************************************/
package org.aspectj.internal.lang.reflect;

import java.lang.reflect.Type;

import org.aspectj.lang.reflect.AjType;
import org.aspectj.lang.reflect.DeclareParents;
import org.aspectj.lang.reflect.TypePattern;

/**
 * @author colyer
 *
 */
public class DeclareParentsImpl implements DeclareParents {

	private AjType declaringType;
	private TypePattern targetTypesPattern;
	private Type[] parents;
	private String parentsString;
	private String firstMissingTypeName;
	private boolean isExtends;
	private boolean parentsError = false;


	// Parents arg is a comma-separate list of type names that needs to be turned into
	// AjTypes
	public DeclareParentsImpl(String targets, String parentsAsString, boolean isExtends, AjType declaring)
	{
		this.targetTypesPattern = new TypePatternImpl(targets);
		this.isExtends = isExtends;
		this.declaringType = declaring;
		this.parentsString = parentsAsString;
		try {
			this.parents = StringToType.commaSeparatedListToTypeArray(parentsAsString, declaring.getJavaClass());
		} catch (ClassNotFoundException cnfEx) {
			this.parentsError = true;
			this.firstMissingTypeName = cnfEx.getMessage();
		}
	}

	public AjType getDeclaringType() {
		return this.declaringType;
	}

	public TypePattern getTargetTypesPattern() {
		return this.targetTypesPattern;
	}

	public boolean isExtends() {
		return this.isExtends;
	}

	public boolean isImplements() {
		return !this.isExtends;
	}

	public Type[] getParentTypes() throws ClassNotFoundException {
		if (parentsError) {
			throw new ClassNotFoundException(this.firstMissingTypeName);
		}
		return this.parents;
	}

	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append("declare parents : ");
		sb.append(getTargetTypesPattern().asString());
		sb.append(isExtends() ? " extends " : " implements ");
		sb.append(this.parentsString);
		return sb.toString();
	}
}