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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) 2010 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:
 *     Andy Clement - SpringSource
 * ******************************************************************/
package org.aspectj.weaver.patterns;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.aspectj.weaver.ISourceContext;
import org.aspectj.weaver.Member;
import org.aspectj.weaver.ResolvedType;
import org.aspectj.weaver.UnresolvedType;
import org.aspectj.weaver.VersionedDataInputStream;
import org.aspectj.weaver.World;

/**
 * Represents the AND of two other signature patterns.
 *
 * @author Andy Clement
 * @since 1.6.9
 */
public class AndSignaturePattern extends AbstractSignaturePattern {

	private ISignaturePattern leftSp;
	private ISignaturePattern rightSp;
	private List exactDeclaringTypes;

	public AndSignaturePattern(ISignaturePattern leftSp, ISignaturePattern rightSp) {
		this.leftSp = leftSp;
		this.rightSp = rightSp;
	}

	public boolean couldEverMatch(ResolvedType type) {
		return leftSp.couldEverMatch(type) || rightSp.couldEverMatch(type);
	}

	public List getExactDeclaringTypes() {
		if (exactDeclaringTypes == null) {
			exactDeclaringTypes = new ArrayList<>();
			exactDeclaringTypes.addAll(leftSp.getExactDeclaringTypes());
			exactDeclaringTypes.addAll(rightSp.getExactDeclaringTypes());
		}
		return exactDeclaringTypes;
	}

	public boolean isMatchOnAnyName() {
		return leftSp.isMatchOnAnyName() || rightSp.isMatchOnAnyName();
	}

	public boolean isStarAnnotation() {
		return leftSp.isStarAnnotation() || rightSp.isStarAnnotation();
	}

	public boolean matches(Member member, World world, boolean b) {
		return (leftSp.matches(member, world, b)) && (rightSp.matches(member, world, b));
	}

	public ISignaturePattern parameterizeWith(Map typeVariableBindingMap, World world) {
		return new AndSignaturePattern(leftSp.parameterizeWith(typeVariableBindingMap, world), rightSp.parameterizeWith(
				typeVariableBindingMap, world));
	}

	public ISignaturePattern resolveBindings(IScope scope, Bindings bindings) {
		// Whilst the real SignaturePattern returns 'this' we are safe to return 'this' here rather than build a new
		// AndSignaturePattern
		leftSp.resolveBindings(scope, bindings);
		rightSp.resolveBindings(scope, bindings);
		return this;
	}

	public static ISignaturePattern readAndSignaturePattern(VersionedDataInputStream s, ISourceContext context) throws IOException {
		AndSignaturePattern ret = new AndSignaturePattern(readCompoundSignaturePattern(s, context), readCompoundSignaturePattern(s,
				context));
		s.readInt();
		s.readInt();
		// ret.readLocation(context, s); // TODO output position currently useless so dont need to do this
		return ret;
	}

	public ISignaturePattern getLeft() {
		return leftSp;
	}

	public ISignaturePattern getRight() {
		return rightSp;
	}

	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append(leftSp.toString()).append(" && ").append(rightSp.toString());
		return sb.toString();
	}

}