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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) 2013, 2014 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.aspectj.org.eclipse.jdt.core.dom;

import java.util.List;

/**
 * Abstract base class of all AST node types that represent a method reference
 * expression (added in JLS8 API).
 *
 *  * MethodReference:
 *    CreationReference
 *    ExpressionMethodReference
 *    SuperMethodReference
 *    TypeMethodReference
 * 
 * 
 * A method reference that is represented by a simple or qualified name,
 * followed by ::, followed by a simple name can be represented
 * as {@link ExpressionMethodReference} or as {@link TypeMethodReference}.
 * The ASTParser currently prefers the first form.
 * 
 *
 * @see CreationReference
 * @see ExpressionMethodReference
 * @see SuperMethodReference
 * @see TypeMethodReference
 * @since 3.10
 */
@SuppressWarnings({"rawtypes"})
public abstract class MethodReference extends Expression {

	/**
	 * The type arguments (element type: {@link Type}).
	 * Defaults to an empty list (see constructor).
	 */
	ASTNode.NodeList typeArguments;

	/**
	 * Creates and returns a structural property descriptor for the "typeArguments"
	 * property declared on the given concrete node type (element type: {@link Type}).
	 *
	 * @return the property descriptor
	 */
	static final ChildListPropertyDescriptor internalTypeArgumentsFactory(Class nodeClass) {
		return new ChildListPropertyDescriptor(nodeClass, "typeArguments", Type.class, NO_CYCLE_RISK); //$NON-NLS-1$
	}

	/**
	 * Returns the structural property descriptor for the "typeArguments" property
	 * of this node (element type: {@link Type}).
	 *
	 * @return the property descriptor
	 */
	abstract ChildListPropertyDescriptor internalTypeArgumentsProperty();

	/**
	 * Returns the structural property descriptor for the "typeArguments" property
	 * of this node (element type: {@link Type}).
	 *
	 * @return the property descriptor
	 */
	public final ChildListPropertyDescriptor getTypeArgumentsProperty() {
		return internalTypeArgumentsProperty();
	}

	/**
	 * Creates a new AST node for a method reference owned by the given AST.
	 * 
	 * N.B. This constructor is package-private.
	 * 
	 *
	 * @param ast the AST that is to own this node
	 */
	MethodReference(AST ast) {
		super(ast);
		this.typeArguments = new ASTNode.NodeList(getTypeArgumentsProperty());
	}

	/**
	 * Returns the live ordered list of type arguments of this method reference.
	 *
	 * @return the live list of type arguments
	 *    (element type: {@link Type})
	 */
	public List typeArguments() {
		return this.typeArguments;
	}

	/**
	 * Resolves and returns the binding for the method referenced by this
	 * method reference expression.
	 * 
	 * Note that bindings are generally unavailable unless requested when the
	 * AST is being built.
	 * 
	 *
	 * @return the method binding, or null if the binding cannot
	 * be resolved
	 */
	public IMethodBinding resolveMethodBinding() {
		return this.ast.getBindingResolver().resolveMethod(this);
	}
}