org.eclipse.jdt.core/dom/org/eclipse/jdt/core/dom/ExpressionMethodReference.java - objectteams/org.eclipse.objectteams - Gitiles

 /*******************************************************************************
  * Copyright (c) 2013 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * This is an implementation of an early-draft specification developed under the Java
  * Community Process (JCP) and is made available for testing and evaluation purposes
  * only. The code is not compatible with any specification of the JCP.
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.core.dom;

 import java.util.ArrayList;
 import java.util.List;

 /**
  * Expression method reference AST node type (added in JLS8 API).
  * <pre>
  * ExpressionMethodReference:
  *     Expression <b>::</b>
  *         [ <b>&lt;</b> Type { <b>,</b> Type } <b>&gt;</b> ]
  *         Identifier
  * </pre>
  *
  * @since 3.10 BETA_JAVA8
  * @noinstantiate This class is not intended to be instantiated by clients.
  */
 public class ExpressionMethodReference extends MethodReference {

 	/**
 	 * The "expression" structural property of this node type (child type: {@link Expression}).
 	 */
 	public static final ChildPropertyDescriptor EXPRESSION_PROPERTY =
 		new ChildPropertyDescriptor(ExpressionMethodReference.class, "expression", Expression.class, MANDATORY, CYCLE_RISK); //$NON-NLS-1$

 	/**
 	 * The "typeArguments" structural property of this node type (element type: {@link Type})
 	 */
 	public static final ChildListPropertyDescriptor TYPE_ARGUMENTS_PROPERTY =
 		internalTypeArgumentsFactory(ExpressionMethodReference.class);

 	/**
 	 * The "name" structural property of this node type (child type: {@link SimpleName}.
 	 */
 	public static final ChildPropertyDescriptor NAME_PROPERTY =
 		new ChildPropertyDescriptor(ExpressionMethodReference.class, "name", SimpleName.class, MANDATORY, NO_CYCLE_RISK); //$NON-NLS-1$

 	/**
 	 * A list of property descriptors (element type:
 	 * {@link StructuralPropertyDescriptor}),
 	 * or null if uninitialized.
 	 */
 	private static final List PROPERTY_DESCRIPTORS_8_0;

 	static {
 		List propertyList = new ArrayList(4);
 		createPropertyList(ExpressionMethodReference.class, propertyList);
 		addProperty(EXPRESSION_PROPERTY, propertyList);
 		addProperty(TYPE_ARGUMENTS_PROPERTY, propertyList);
 		addProperty(NAME_PROPERTY, propertyList);
 		PROPERTY_DESCRIPTORS_8_0 = reapPropertyList(propertyList);
 	}

 	/**
 	 * Returns a list of structural property descriptors for this node type.
 	 * Clients must not modify the result.
 	 *
 	 * @param apiLevel the API level; one of the AST.JLS* constants
 	 * @return a list of property descriptors (element type:
 	 * {@link StructuralPropertyDescriptor})
 	 */
 	public static List propertyDescriptors(int apiLevel) {
 		return PROPERTY_DESCRIPTORS_8_0;
 	}

 	/**
 	 * The expression; lazily initialized; defaults to an unspecified,
 	 * legal expression.
 	 */
 	private Expression expression = null;

 	/**
 	 * The method name; lazily initialized; defaults to an unspecified,
 	 * legal Java method name.
 	 */
 	private SimpleName methodName = null;

 	/**
 	 * Creates a new AST node for an ExpressionMethodReference declaration owned
 	 * by the given AST.
 	 * <p>
 	 * N.B. This constructor is package-private; all subclasses must be
 	 * declared in the same package; clients are unable to declare
 	 * additional subclasses.
 	 * </p>
 	 *
 	 * @param ast the AST that is to own this node
 	 */
 	ExpressionMethodReference(AST ast) {
 		super(ast);
 		unsupportedIn2_3_4();
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on MethodReference.
 	 */
 	final ChildListPropertyDescriptor internalTypeArgumentsProperty() {
 		return TYPE_ARGUMENTS_PROPERTY;
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	final List internalStructuralPropertiesForType(int apiLevel) {
 		return propertyDescriptors(apiLevel);
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) {
 		if (property == NAME_PROPERTY) {
 			if (get) {
 				return getName();
 			} else {
 				setName((SimpleName) child);
 				return null;
 			}
 		}
 		if (property == EXPRESSION_PROPERTY) {
 			if (get) {
 				return getExpression();
 			} else {
 				setExpression((Expression) child);
 				return null;
 			}
 		}
 		// allow default implementation to flag the error
 		return super.internalGetSetChildProperty(property, get, child);
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	final List internalGetChildListProperty(ChildListPropertyDescriptor property) {
 		if (property == TYPE_ARGUMENTS_PROPERTY) {
 			return typeArguments();
 		}
 		// allow default implementation to flag the error
 		return super.internalGetChildListProperty(property);
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	final int getNodeType0() {
 		return EXPRESSION_METHOD_REFERENCE;
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	ASTNode clone0(AST target) {
 		ExpressionMethodReference result = new ExpressionMethodReference(target);
 		result.setSourceRange(getStartPosition(), getLength());
 		result.setExpression(
 			(Expression) ASTNode.copySubtree(target, getExpression()));
 		result.typeArguments().addAll(ASTNode.copySubtrees(target, typeArguments()));
 		result.setName((SimpleName) getName().clone(target));
 		return result;
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	final boolean subtreeMatch0(ASTMatcher matcher, Object other) {
 		// dispatch to correct overloaded match method
 		return matcher.match(this, other);
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	void accept0(ASTVisitor visitor) {
 		boolean visitChildren = visitor.visit(this);
 		if (visitChildren) {
 			// visit children in normal left to right reading order
 			acceptChild(visitor, getExpression());
 			acceptChildren(visitor, this.typeArguments);
 			acceptChild(visitor, getName());
 		}
 		visitor.endVisit(this);
 	}

 	/**
 	 * Returns the expression of this expression method reference expression
 	 *
 	 * @return the expression node
 	 */
 	public Expression getExpression() {
 		if (this.expression == null) {
 			// lazy init must be thread-safe for readers
 			synchronized (this) {
 				if (this.expression == null) {
 					preLazyInit();
 					this.expression = new SimpleName(this.ast);
 					postLazyInit(this.expression, EXPRESSION_PROPERTY);
 				}
 			}
 		}
 		return this.expression;
 	}

 	/**
 	 * Sets the expression of this expression method reference.
 	 *
 	 * @param expression the expression node
 	 * @exception IllegalArgumentException if:
 	 * <ul>
 	 * <li>the node belongs to a different AST</li>
 	 * <li>the node already has a parent</li>
 	 * <li>a cycle in would be created</li>
 	 * </ul>
 	 */
 	public void setExpression(Expression expression) {
 		if (expression == null) {
 			throw new IllegalArgumentException();
 		}
 		ASTNode oldChild = this.expression;
 		preReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
 		this.expression = expression;
 		postReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
 	}

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

 	/**
 	 * Returns the name of the method referenced in this expression.
 	 *
 	 * @return the method name node
 	 */
 	public SimpleName getName() {
 		if (this.methodName == null) {
 			// lazy init must be thread-safe for readers
 			synchronized (this) {
 				if (this.methodName == null) {
 					preLazyInit();
 					this.methodName = new SimpleName(this.ast);
 					postLazyInit(this.methodName, NAME_PROPERTY);
 				}
 			}
 		}
 		return this.methodName;
 	}

 	/**
 	 * Sets the name of the method referenced in this expression to the
 	 * given name.
 	 *
 	 * @param name the new method name
 	 * @exception IllegalArgumentException if:
 	 * <ul>
 	 * <li>the node belongs to a different AST</li>
 	 * <li>the node already has a parent</li>
 	 * </ul>
 	 */
 	public void setName(SimpleName name) {
 		if (name == null) {
 			throw new IllegalArgumentException();
 		}
 		ASTNode oldChild = this.methodName;
 		preReplaceChild(oldChild, name, NAME_PROPERTY);
 		this.methodName = name;
 		postReplaceChild(oldChild, name, NAME_PROPERTY);
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	int memSize() {
 		// treat Code as free
 		return BASE_NODE_SIZE + 3 * 4;
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	int treeSize() {
 		return
 			memSize()
 			+ (this.expression == null ? 0 : getExpression().treeSize())
 			+ (this.typeArguments == null ? 0 : this.typeArguments.listSize())
 			+ (this.methodName == null ? 0 : getName().treeSize());
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2013 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* This is an implementation of an early-draft specification developed under the Java
	* Community Process (JCP) and is made available for testing and evaluation purposes
	* only. The code is not compatible with any specification of the JCP.
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.core.dom;

	import java.util.ArrayList;
	import java.util.List;

	/**
	* Expression method reference AST node type (added in JLS8 API).
	* <pre>
	* ExpressionMethodReference:
	* Expression <b>::</b>
	* [ <b><</b> Type { <b>,</b> Type } <b>></b> ]
	* Identifier
	* </pre>
	*
	* @since 3.10 BETA_JAVA8
	* @noinstantiate This class is not intended to be instantiated by clients.
	*/
	public class ExpressionMethodReference extends MethodReference {

	/**
	* The "expression" structural property of this node type (child type: {@link Expression}).
	*/
	public static final ChildPropertyDescriptor EXPRESSION_PROPERTY =
	new ChildPropertyDescriptor(ExpressionMethodReference.class, "expression", Expression.class, MANDATORY, CYCLE_RISK); //$NON-NLS-1$

	/**
	* The "typeArguments" structural property of this node type (element type: {@link Type})
	*/
	public static final ChildListPropertyDescriptor TYPE_ARGUMENTS_PROPERTY =
	internalTypeArgumentsFactory(ExpressionMethodReference.class);

	/**
	* The "name" structural property of this node type (child type: {@link SimpleName}.
	*/
	public static final ChildPropertyDescriptor NAME_PROPERTY =
	new ChildPropertyDescriptor(ExpressionMethodReference.class, "name", SimpleName.class, MANDATORY, NO_CYCLE_RISK); //$NON-NLS-1$

	/**
	* A list of property descriptors (element type:
	* {@link StructuralPropertyDescriptor}),
	* or null if uninitialized.
	*/
	private static final List PROPERTY_DESCRIPTORS_8_0;

	static {
	List propertyList = new ArrayList(4);
	createPropertyList(ExpressionMethodReference.class, propertyList);
	addProperty(EXPRESSION_PROPERTY, propertyList);
	addProperty(TYPE_ARGUMENTS_PROPERTY, propertyList);
	addProperty(NAME_PROPERTY, propertyList);
	PROPERTY_DESCRIPTORS_8_0 = reapPropertyList(propertyList);
	}

	/**
	* Returns a list of structural property descriptors for this node type.
	* Clients must not modify the result.
	*
	* @param apiLevel the API level; one of the AST.JLS* constants
	* @return a list of property descriptors (element type:
	* {@link StructuralPropertyDescriptor})
	*/
	public static List propertyDescriptors(int apiLevel) {
	return PROPERTY_DESCRIPTORS_8_0;
	}

	/**
	* The expression; lazily initialized; defaults to an unspecified,
	* legal expression.
	*/
	private Expression expression = null;

	/**
	* The method name; lazily initialized; defaults to an unspecified,
	* legal Java method name.
	*/
	private SimpleName methodName = null;

	/**
	* Creates a new AST node for an ExpressionMethodReference declaration owned
	* by the given AST.
	* <p>
	* N.B. This constructor is package-private; all subclasses must be
	* declared in the same package; clients are unable to declare
	* additional subclasses.
	* </p>
	*
	* @param ast the AST that is to own this node
	*/
	ExpressionMethodReference(AST ast) {
	super(ast);
	unsupportedIn2_3_4();
	}

	/* (omit javadoc for this method)
	* Method declared on MethodReference.
	*/
	final ChildListPropertyDescriptor internalTypeArgumentsProperty() {
	return TYPE_ARGUMENTS_PROPERTY;
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	final List internalStructuralPropertiesForType(int apiLevel) {
	return propertyDescriptors(apiLevel);
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) {
	if (property == NAME_PROPERTY) {
	if (get) {
	return getName();
	} else {
	setName((SimpleName) child);
	return null;
	}
	}
	if (property == EXPRESSION_PROPERTY) {
	if (get) {
	return getExpression();
	} else {
	setExpression((Expression) child);
	return null;
	}
	}
	// allow default implementation to flag the error
	return super.internalGetSetChildProperty(property, get, child);
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	final List internalGetChildListProperty(ChildListPropertyDescriptor property) {
	if (property == TYPE_ARGUMENTS_PROPERTY) {
	return typeArguments();
	}
	// allow default implementation to flag the error
	return super.internalGetChildListProperty(property);
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	final int getNodeType0() {
	return EXPRESSION_METHOD_REFERENCE;
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	ASTNode clone0(AST target) {
	ExpressionMethodReference result = new ExpressionMethodReference(target);
	result.setSourceRange(getStartPosition(), getLength());
	result.setExpression(
	(Expression) ASTNode.copySubtree(target, getExpression()));
	result.typeArguments().addAll(ASTNode.copySubtrees(target, typeArguments()));
	result.setName((SimpleName) getName().clone(target));
	return result;
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	final boolean subtreeMatch0(ASTMatcher matcher, Object other) {
	// dispatch to correct overloaded match method
	return matcher.match(this, other);
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	void accept0(ASTVisitor visitor) {
	boolean visitChildren = visitor.visit(this);
	if (visitChildren) {
	// visit children in normal left to right reading order
	acceptChild(visitor, getExpression());
	acceptChildren(visitor, this.typeArguments);
	acceptChild(visitor, getName());
	}
	visitor.endVisit(this);
	}

	/**
	* Returns the expression of this expression method reference expression
	*
	* @return the expression node
	*/
	public Expression getExpression() {
	if (this.expression == null) {
	// lazy init must be thread-safe for readers
	synchronized (this) {
	if (this.expression == null) {
	preLazyInit();
	this.expression = new SimpleName(this.ast);
	postLazyInit(this.expression, EXPRESSION_PROPERTY);
	}
	}
	}
	return this.expression;
	}

	/**
	* Sets the expression of this expression method reference.
	*
	* @param expression the expression node
	* @exception IllegalArgumentException if:
	* <ul>
	* <li>the node belongs to a different AST</li>
	* <li>the node already has a parent</li>
	* <li>a cycle in would be created</li>
	* </ul>
	*/
	public void setExpression(Expression expression) {
	if (expression == null) {
	throw new IllegalArgumentException();
	}
	ASTNode oldChild = this.expression;
	preReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
	this.expression = expression;
	postReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
	}

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

	/**
	* Returns the name of the method referenced in this expression.
	*
	* @return the method name node
	*/
	public SimpleName getName() {
	if (this.methodName == null) {
	// lazy init must be thread-safe for readers
	synchronized (this) {
	if (this.methodName == null) {
	preLazyInit();
	this.methodName = new SimpleName(this.ast);
	postLazyInit(this.methodName, NAME_PROPERTY);
	}
	}
	}
	return this.methodName;
	}

	/**
	* Sets the name of the method referenced in this expression to the
	* given name.
	*
	* @param name the new method name
	* @exception IllegalArgumentException if:
	* <ul>
	* <li>the node belongs to a different AST</li>
	* <li>the node already has a parent</li>
	* </ul>
	*/
	public void setName(SimpleName name) {
	if (name == null) {
	throw new IllegalArgumentException();
	}
	ASTNode oldChild = this.methodName;
	preReplaceChild(oldChild, name, NAME_PROPERTY);
	this.methodName = name;
	postReplaceChild(oldChild, name, NAME_PROPERTY);
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	int memSize() {
	// treat Code as free
	return BASE_NODE_SIZE + 3 * 4;
	}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	int treeSize() {
	return
	memSize()
	+ (this.expression == null ? 0 : getExpression().treeSize())
	+ (this.typeArguments == null ? 0 : this.typeArguments.listSize())
	+ (this.methodName == null ? 0 : getName().treeSize());
	}
	}