org.aspectj.ajde/source/org/aspectj/org/eclipse/jdt/core/dom/EnhancedForStatement.java - ajdt/org.eclipse.ajdt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 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
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.aspectj.org.eclipse.jdt.core.dom;

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

 /**
  * Enhanced For statement AST node type (added in JLS3 API).
  *
  * <pre>
  * EnhancedForStatement:
  *    <b>for</b> <b>(</b> FormalParameter <b>:</b> Expression <b>)</b>
  * 			Statement
  * </pre>
  *
  * <p>The FormalParameter is represented by a {@link SingleVariableDeclaration}
  * (without an initializer).</p>
  *
  * @since 3.1
  * @noinstantiate This class is not intended to be instantiated by clients.
  */
 @SuppressWarnings("rawtypes")
 public class EnhancedForStatement extends Statement {

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

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

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

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

 	static {
 		List properyList = new ArrayList(4);
 		createPropertyList(EnhancedForStatement.class, properyList);
 		addProperty(PARAMETER_PROPERTY, properyList);
 		addProperty(EXPRESSION_PROPERTY, properyList);
 		addProperty(BODY_PROPERTY, properyList);
 		PROPERTY_DESCRIPTORS = reapPropertyList(properyList);
 	}

 	/**
 	 * 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
 	 * <code>AST.JLS*</code> constants

 	 * @return a list of property descriptors (element type:
 	 * {@link StructuralPropertyDescriptor})
 	 */
 	public static List propertyDescriptors(int apiLevel) {
 		return PROPERTY_DESCRIPTORS;
 	}

 	/**
 	 * The parameter; lazily initialized; defaults to a unspecified,
 	 * legal node.
 	 */
 	private SingleVariableDeclaration parameter = null;

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

 	/**
 	 * The body statement; lazily initialized; defaults to an empty block
 	 * statement.
 	 */
 	private Statement body = null;

 	/**
 	 * Creates a new AST node for an enchanced for statement owned by the
 	 * given AST. By default, the parameter and expression are unspecified
 	 * but legal subtrees, and the body is an empty block.
 	 *
 	 * @param ast the AST that is to own this node
 	 */
 	EnhancedForStatement(AST ast) {
 		super(ast);
 	    unsupportedIn2();
 	}

 	@Override
 	final List internalStructuralPropertiesForType(int apiLevel) {
 		return propertyDescriptors(apiLevel);
 	}

 	@Override
 	final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) {
 		if (property == PARAMETER_PROPERTY) {
 			if (get) {
 				return getParameter();
 			} else {
 				setParameter((SingleVariableDeclaration) child);
 				return null;
 			}
 		}
 		if (property == EXPRESSION_PROPERTY) {
 			if (get) {
 				return getExpression();
 			} else {
 				setExpression((Expression) child);
 				return null;
 			}
 		}
 		if (property == BODY_PROPERTY) {
 			if (get) {
 				return getBody();
 			} else {
 				setBody((Statement) child);
 				return null;
 			}
 		}
 		// allow default implementation to flag the error
 		return super.internalGetSetChildProperty(property, get, child);
 	}

 	@Override
 	final int getNodeType0() {
 		return ENHANCED_FOR_STATEMENT;
 	}

 	@Override
 	ASTNode clone0(AST target) {
 		EnhancedForStatement result = new EnhancedForStatement(target);
 		result.setSourceRange(getStartPosition(), getLength());
 		result.copyLeadingComment(this);
 		result.setParameter((SingleVariableDeclaration) getParameter().clone(target));
 		result.setExpression((Expression) getExpression().clone(target));
 		result.setBody(
 			(Statement) ASTNode.copySubtree(target, getBody()));
 		return result;
 	}

 	@Override
 	final boolean subtreeMatch0(ASTMatcher matcher, Object other) {
 		// dispatch to correct overloaded match method
 		return matcher.match(this, other);
 	}

 	@Override
 	void accept0(ASTVisitor visitor) {
 		boolean visitChildren = visitor.visit(this);
 		if (visitChildren) {
 			// visit children in normal left to right reading order
 			acceptChild(visitor, getParameter());
 			acceptChild(visitor, getExpression());
 			acceptChild(visitor, getBody());
 		}
 		visitor.endVisit(this);
 	}

 	/**
 	 * Returns the formal parameter in this enhanced for statement.
 	 *
 	 * @return the parameter
 	 */
 	public SingleVariableDeclaration getParameter() {
 		if (this.parameter == null) {
 			// lazy init must be thread-safe for readers
 			synchronized (this) {
 				if (this.parameter == null) {
 					preLazyInit();
 					this.parameter = this.ast.newSingleVariableDeclaration();
 					postLazyInit(this.parameter, PARAMETER_PROPERTY);
 				}
 			}
 		}
 		return this.parameter;
 	}

 	/**
 	 * Sets the formal parameter in this enhanced for statement.
 	 *
 	 * @param parameter the new parameter
 	 * @exception IllegalArgumentException if:
 	 * <ul>
 	 * <li>the node belongs to a different AST</li>
 	 * <li>the node already has a parent</li>
 	 * </ul>
 	 */
 	public void setParameter(SingleVariableDeclaration parameter) {
 		if (parameter == null) {
 			throw new IllegalArgumentException();
 		}
 		ASTNode oldChild = this.parameter;
 		preReplaceChild(oldChild, parameter, PARAMETER_PROPERTY);
 		this.parameter = parameter;
 		postReplaceChild(oldChild, parameter, PARAMETER_PROPERTY);
 	}

 	/**
 	 * Returns the expression of this enhanced for statement.
 	 *
 	 * @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 enhanced for statement.
 	 *
 	 * @param expression the new 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 body of this enchanced for statement.
 	 *
 	 * @return the body statement node
 	 */
 	public Statement getBody() {
 		if (this.body == null) {
 			// lazy init must be thread-safe for readers
 			synchronized (this) {
 				if (this.body == null) {
 					preLazyInit();
 					this.body = new Block(this.ast);
 					postLazyInit(this.body, BODY_PROPERTY);
 				}
 			}
 		}
 		return this.body;
 	}

 	/**
 	 * Sets the body of this enhanced for statement.
 	 *
 	 * @param statement the body statement 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 setBody(Statement statement) {
 		if (statement == null) {
 			throw new IllegalArgumentException();
 		}
 		ASTNode oldChild = this.body;
 		preReplaceChild(oldChild, statement, BODY_PROPERTY);
 		this.body = statement;
 		postReplaceChild(oldChild, statement, BODY_PROPERTY);
 	}

 	@Override
 	int memSize() {
 		return super.memSize() + 3 * 4;
 	}

 	@Override
 	int treeSize() {
 		return
 			memSize()
 			+ (this.parameter == null ? 0 : getParameter().treeSize())
 			+ (this.expression == null ? 0 : getExpression().treeSize())
 			+ (this.body == null ? 0 : getBody().treeSize());
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 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
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/

	package org.aspectj.org.eclipse.jdt.core.dom;

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

	/**
	* Enhanced For statement AST node type (added in JLS3 API).
	*
	* <pre>
	* EnhancedForStatement:
	* <b>for</b> <b>(</b> FormalParameter <b>:</b> Expression <b>)</b>
	* Statement
	* </pre>
	*
	* <p>The FormalParameter is represented by a {@link SingleVariableDeclaration}
	* (without an initializer).</p>
	*
	* @since 3.1
	* @noinstantiate This class is not intended to be instantiated by clients.
	*/
	@SuppressWarnings("rawtypes")
	public class EnhancedForStatement extends Statement {

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

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

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

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

	static {
	List properyList = new ArrayList(4);
	createPropertyList(EnhancedForStatement.class, properyList);
	addProperty(PARAMETER_PROPERTY, properyList);
	addProperty(EXPRESSION_PROPERTY, properyList);
	addProperty(BODY_PROPERTY, properyList);
	PROPERTY_DESCRIPTORS = reapPropertyList(properyList);
	}

	/**
	* 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
	* <code>AST.JLS*</code> constants

	* @return a list of property descriptors (element type:
	* {@link StructuralPropertyDescriptor})
	*/
	public static List propertyDescriptors(int apiLevel) {
	return PROPERTY_DESCRIPTORS;
	}

	/**
	* The parameter; lazily initialized; defaults to a unspecified,
	* legal node.
	*/
	private SingleVariableDeclaration parameter = null;

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

	/**
	* The body statement; lazily initialized; defaults to an empty block
	* statement.
	*/
	private Statement body = null;

	/**
	* Creates a new AST node for an enchanced for statement owned by the
	* given AST. By default, the parameter and expression are unspecified
	* but legal subtrees, and the body is an empty block.
	*
	* @param ast the AST that is to own this node
	*/
	EnhancedForStatement(AST ast) {
	super(ast);
	unsupportedIn2();
	}

	@Override
	final List internalStructuralPropertiesForType(int apiLevel) {
	return propertyDescriptors(apiLevel);
	}

	@Override
	final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) {
	if (property == PARAMETER_PROPERTY) {
	if (get) {
	return getParameter();
	} else {
	setParameter((SingleVariableDeclaration) child);
	return null;
	}
	}
	if (property == EXPRESSION_PROPERTY) {
	if (get) {
	return getExpression();
	} else {
	setExpression((Expression) child);
	return null;
	}
	}
	if (property == BODY_PROPERTY) {
	if (get) {
	return getBody();
	} else {
	setBody((Statement) child);
	return null;
	}
	}
	// allow default implementation to flag the error
	return super.internalGetSetChildProperty(property, get, child);
	}

	@Override
	final int getNodeType0() {
	return ENHANCED_FOR_STATEMENT;
	}

	@Override
	ASTNode clone0(AST target) {
	EnhancedForStatement result = new EnhancedForStatement(target);
	result.setSourceRange(getStartPosition(), getLength());
	result.copyLeadingComment(this);
	result.setParameter((SingleVariableDeclaration) getParameter().clone(target));
	result.setExpression((Expression) getExpression().clone(target));
	result.setBody(
	(Statement) ASTNode.copySubtree(target, getBody()));
	return result;
	}

	@Override
	final boolean subtreeMatch0(ASTMatcher matcher, Object other) {
	// dispatch to correct overloaded match method
	return matcher.match(this, other);
	}

	@Override
	void accept0(ASTVisitor visitor) {
	boolean visitChildren = visitor.visit(this);
	if (visitChildren) {
	// visit children in normal left to right reading order
	acceptChild(visitor, getParameter());
	acceptChild(visitor, getExpression());
	acceptChild(visitor, getBody());
	}
	visitor.endVisit(this);
	}

	/**
	* Returns the formal parameter in this enhanced for statement.
	*
	* @return the parameter
	*/
	public SingleVariableDeclaration getParameter() {
	if (this.parameter == null) {
	// lazy init must be thread-safe for readers
	synchronized (this) {
	if (this.parameter == null) {
	preLazyInit();
	this.parameter = this.ast.newSingleVariableDeclaration();
	postLazyInit(this.parameter, PARAMETER_PROPERTY);
	}
	}
	}
	return this.parameter;
	}

	/**
	* Sets the formal parameter in this enhanced for statement.
	*
	* @param parameter the new parameter
	* @exception IllegalArgumentException if:
	* <ul>
	* <li>the node belongs to a different AST</li>
	* <li>the node already has a parent</li>
	* </ul>
	*/
	public void setParameter(SingleVariableDeclaration parameter) {
	if (parameter == null) {
	throw new IllegalArgumentException();
	}
	ASTNode oldChild = this.parameter;
	preReplaceChild(oldChild, parameter, PARAMETER_PROPERTY);
	this.parameter = parameter;
	postReplaceChild(oldChild, parameter, PARAMETER_PROPERTY);
	}

	/**
	* Returns the expression of this enhanced for statement.
	*
	* @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 enhanced for statement.
	*
	* @param expression the new 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 body of this enchanced for statement.
	*
	* @return the body statement node
	*/
	public Statement getBody() {
	if (this.body == null) {
	// lazy init must be thread-safe for readers
	synchronized (this) {
	if (this.body == null) {
	preLazyInit();
	this.body = new Block(this.ast);
	postLazyInit(this.body, BODY_PROPERTY);
	}
	}
	}
	return this.body;
	}

	/**
	* Sets the body of this enhanced for statement.
	*
	* @param statement the body statement 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 setBody(Statement statement) {
	if (statement == null) {
	throw new IllegalArgumentException();
	}
	ASTNode oldChild = this.body;
	preReplaceChild(oldChild, statement, BODY_PROPERTY);
	this.body = statement;
	postReplaceChild(oldChild, statement, BODY_PROPERTY);
	}

	@Override
	int memSize() {
	return super.memSize() + 3 * 4;
	}

	@Override
	int treeSize() {
	return
	memSize()
	+ (this.parameter == null ? 0 : getParameter().treeSize())
	+ (this.expression == null ? 0 : getExpression().treeSize())
	+ (this.body == null ? 0 : getBody().treeSize());
	}
	}