org.eclipse.jdt.core/dom/org/eclipse/jdt/core/dom/SwitchCase.java - objectteams/org.eclipse.objectteams - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2019 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.eclipse.jdt.core.dom;

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

 /**
  * Switch case AST node type. A switch case is a special kind of node used only
  * in switch statements. It is a <code>Statement</code> in name only.
  * <pre>
  * SwitchCase:
  * 		<b>case</b> Expression  <b>:</b>
  * 		<b>default</b> <b>:</b>
  *
  * Switch case allows multiple expressions and '->' as part of Java 12 preview feature (JEP 325)
  *		<b>case</b> [ Expression { <b>,</b> Expression } ]  <b>{ : | ->}</b>
  *		<b>default</b> <b>{ : | ->}</b>
  * </pre>
  *
  * @since 2.0
  * @noinstantiate This class is not intended to be instantiated by clients.
  */
 @SuppressWarnings("rawtypes")
 public class SwitchCase extends Statement {

 	/**
 	 * The "expression" structural property of this node type (child type: {@link Expression}).
 	 * @since 3.0
 	 * @deprecated In the JLS 12 15.28.1 API, this property is replaced by {@link #EXPRESSIONS2_PROPERTY }.
 	 */
 	public static final ChildPropertyDescriptor EXPRESSION_PROPERTY =
 		new ChildPropertyDescriptor(SwitchCase.class, "expression", Expression.class, OPTIONAL, CYCLE_RISK); //$NON-NLS-1$

 	/**
 	 * The "expression" structural property of this node type (child type: {@link Expression}). (added in JEP 325).
 	 * @since 3.18
 	 */
 	public static final ChildListPropertyDescriptor EXPRESSIONS2_PROPERTY  =
 			new ChildListPropertyDescriptor(SwitchCase.class, "expression", Expression.class, CYCLE_RISK); //$NON-NLS-1$);

 	/**
 	 * The "switchLabeledRule" structural property of this node type (type: {@link Boolean}).
 	 * @since 3.18
 	 */
 	public static final SimplePropertyDescriptor SWITCH_LABELED_RULE_PROPERTY =
 		new SimplePropertyDescriptor(SwitchCase.class, "switchLabeledRule", boolean.class, MANDATORY); //$NON-NLS-1$

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

 	/**
 	 * A list of property descriptors (element type:
 	 * {@link StructuralPropertyDescriptor}),
 	 * or null if uninitialized.
 	 */
 	private static final List PROPERTY_DESCRIPTORS_12;

 	static {
 		List propertyList = new ArrayList(2);
 		createPropertyList(SwitchCase.class, propertyList);
 		addProperty(EXPRESSION_PROPERTY, propertyList);
 		PROPERTY_DESCRIPTORS = reapPropertyList(propertyList);

 		propertyList = new ArrayList(2);
 		createPropertyList(SwitchCase.class, propertyList);
 		addProperty(EXPRESSIONS2_PROPERTY , propertyList);
 		addProperty(SWITCH_LABELED_RULE_PROPERTY, propertyList);
 		PROPERTY_DESCRIPTORS_12 = 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
 	 * <code>AST.JLS*</code> constants
 	 * @return a list of property descriptors (element type:
 	 * {@link StructuralPropertyDescriptor})
 	 * @since 3.0
 	 */
 	public static List propertyDescriptors(int apiLevel) {
 		return propertyDescriptors(apiLevel, false);
 	}

 	/**
 	 * 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
 	 * @param previewEnabled the previewEnabled flag
 	 * @return a list of property descriptors (element type:
 	 * {@link StructuralPropertyDescriptor})
 	 * @noreference This method is not intended to be referenced by clients.
 	 * @since 3.19
 	 */
 	public static List propertyDescriptors(int apiLevel, boolean previewEnabled) {
 		if (apiLevel == AST.JLS12_INTERNAL && previewEnabled) {
 			return PROPERTY_DESCRIPTORS_12;
 		}
 		return PROPERTY_DESCRIPTORS;
 	}

 	/**
 	 * The expression; <code>null</code> for none; lazily initialized (but
 	 * does <b>not</b> default to none).
 	 * @see #expressionInitialized
 	 */
 	private Expression optionalExpression = null;

 	/**
 	 * <code>true</code> indicates "->" and <code>false</code> indicates ":".
 	 */
 	private boolean switchLabeledRule = false;


 	/**
 	 * The expression list; <code>empty</code> for none;
 	 */
 	private ASTNode.NodeList expressions = null;

 	/**
 	 * Indicates whether <code>optionalExpression</code> has been initialized.
 	 */
 	private boolean expressionInitialized = false;

 	/**
 	 * Creates a new AST node for a switch case pseudo-statement owned by the
 	 * given AST. By default, there is no expression, but legal, and switchLabeledRule
 	 * is false which indicates ":".
 	 *
 	 * @param ast the AST that is to own this node
 	 */
 	SwitchCase(AST ast) {
 		super(ast);
 		if (isPreviewEnabled()) {
 			this.expressions = new ASTNode.NodeList(EXPRESSIONS2_PROPERTY );
 		}
 	}

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

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

 	@Override
 	final boolean internalGetSetBooleanProperty(SimplePropertyDescriptor property, boolean get, boolean value) {
 		if (property == SWITCH_LABELED_RULE_PROPERTY) {
 			if (get) {
 				return isSwitchLabeledRule();
 			} else {
 				setSwitchLabeledRule(value);
 				return false;
 			}
 		}
 		// allow default implementation to flag the error
 		return super.internalGetSetBooleanProperty(property, get, value);
 	}

 	@Override
 	final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) {
 		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);
 	}

 	@Override
 	final List internalGetChildListProperty(ChildListPropertyDescriptor property) {
 		if (property == EXPRESSIONS2_PROPERTY ) {
 			return expressions();
 		}
 		// allow default implementation to flag the error
 		return super.internalGetChildListProperty(property);
 	}

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

 	@SuppressWarnings("unchecked")
 	@Override
 	ASTNode clone0(AST target) {
 		SwitchCase result = new SwitchCase(target);
 		result.setSourceRange(getStartPosition(), getLength());
 		result.copyLeadingComment(this);
 		if (isPreviewEnabled()) {
 			result.expressions().addAll(
 				ASTNode.copySubtrees(target, expressions()));
 		} else {
 			result.setExpression(
 					(Expression) ASTNode.copySubtree(target, getExpression()));
 		}
 		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) {
 			if (isPreviewEnabled()) {
 				acceptChildren(visitor, this.expressions);
 			} else {
 				acceptChild(visitor, getExpression());
 			}
 		}
 		visitor.endVisit(this);
 	}

 	/**
 	 * Returns the expression of this switch case, or
 	 * <code>null</code> if there is none (the "default:" case).
 	 *
 	 * @return the expression node, or <code>null</code> if there is none
 	 * @deprecated use expressions() (see JLS 12)
 	 */
 	public Expression getExpression() {
 		if (!this.expressionInitialized) {
 			// lazy init must be thread-safe for readers
 			synchronized (this) {
 				if (!this.expressionInitialized) {
 					preLazyInit();
 					this.optionalExpression = new SimpleName(this.ast);
 					this.expressionInitialized = true;
 					postLazyInit(this.optionalExpression, EXPRESSION_PROPERTY);
 				}
 			}
 		}
 		return this.optionalExpression;
 	}

 	/**
 	 * Returns the list of expressions of this switch case, or
 	 * <code>empty</code> if there is none (the "default:" case).
 	 * With previewEnabled flag as false it will have only one element.
 	 *
 	 *  @return the list of expression nodes
 	 *    (element type: {@link Expression})
 	 * @exception UnsupportedOperationException if this operation is used below JLS12
 	 * @exception UnsupportedOperationException if this expression is used with previewEnabled flag as false
 	 * @since 3.18
 	 */
 	public List expressions() {
 		if (this.expressions == null) {
 			unsupportedBelow12();
 			unsupportedWithoutPreviewError();
 		}
 		return this.expressions;
 	}

 	/**
 	 * Sets the expression of this switch case, or clears it (turns it into
 	 * the  "default:" case).
 	 *
 	 * @param expression the expression node, or <code>null</code> to
 	 *    turn it into the  "default:" case
 	 * @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>
 	 * @deprecated see JLS 12
 	 */
 	public void setExpression(Expression expression) {
 		ASTNode oldChild = this.optionalExpression;
 		preReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
 		this.optionalExpression = expression;
 		this.expressionInitialized = true;
 		postReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
 	}

 	/**
 	 * Sets the switchLabeledRule of this switch case as <code>true</code> or <code>false</code>.
 	 * <code>true</code> indicates "->" and <code>false</code> indicates ":".

 	 * @param switchLabeledRule <code>true</code> or <code>false</code>
 	 * @exception UnsupportedOperationException if this operation is used below JLS12
 	 * @exception UnsupportedOperationException if this expression is used with previewEnabled flag as false
 	 * @since 3.18
 	 */
 	public void setSwitchLabeledRule(boolean switchLabeledRule) {
 		unsupportedBelow12();
 		unsupportedWithoutPreviewError();
 		preValueChange(SWITCH_LABELED_RULE_PROPERTY);
 		this.switchLabeledRule = switchLabeledRule;
 		postValueChange(SWITCH_LABELED_RULE_PROPERTY);
 	}

 	/**
 	 * Gets the switchLabeledRule of this switch case as <code>true</code> or <code>false</code>.
 	 *<code>true</code> indicates "->" and <code>false</code> indicates ":".
 	 *
 	 * @return switchLabeledRule <code>true</code> or <code>false</code>
 	 * @exception UnsupportedOperationException if this operation is used below JLS12
 	 * @exception UnsupportedOperationException if this expression is used with previewEnabled flag as false
 	 * @since 3.18
 	 */
 	public boolean isSwitchLabeledRule() {
 		unsupportedBelow12();
 		unsupportedWithoutPreviewError();
 		return this.switchLabeledRule;
 	}

 	/**
 	 * Returns whether this switch case represents the "default:" case.
 	 * <p>
 	 * This convenience method is equivalent to
 	 * <code>getExpression() == null</code> or <code>expressions().isEmpty()</code>.
 	 * </p>
 	 *
 	 * @return <code>true</code> if this is the default switch case, and
 	 *    <code>false</code> if this is a non-default switch case
 	 */
 	public boolean isDefault()  {
 		if (isPreviewEnabled()) {
 			return expressions().isEmpty();
 		}
 		return getExpression() == null;
 	}

 	@Override
 	int memSize() {
 		return super.memSize() + 2 * 4;
 	}

 	@Override
 	int treeSize() {
 		return
 			memSize()
 			+ (this.optionalExpression == null ? 0 : this.optionalExpression.treeSize());
 	}


 }
	/*******************************************************************************
	* Copyright (c) 2000, 2019 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.eclipse.jdt.core.dom;

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

	/**
	* Switch case AST node type. A switch case is a special kind of node used only
	* in switch statements. It is a <code>Statement</code> in name only.
	* <pre>
	* SwitchCase:
	* <b>case</b> Expression <b>:</b>
	* <b>default</b> <b>:</b>
	*
	* Switch case allows multiple expressions and '->' as part of Java 12 preview feature (JEP 325)
	* <b>case</b> [ Expression { <b>,</b> Expression } ] <b>{ : \| ->}</b>
	* <b>default</b> <b>{ : \| ->}</b>
	* </pre>
	*
	* @since 2.0
	* @noinstantiate This class is not intended to be instantiated by clients.
	*/
	@SuppressWarnings("rawtypes")
	public class SwitchCase extends Statement {

	/**
	* The "expression" structural property of this node type (child type: {@link Expression}).
	* @since 3.0
	* @deprecated In the JLS 12 15.28.1 API, this property is replaced by {@link #EXPRESSIONS2_PROPERTY }.
	*/
	public static final ChildPropertyDescriptor EXPRESSION_PROPERTY =
	new ChildPropertyDescriptor(SwitchCase.class, "expression", Expression.class, OPTIONAL, CYCLE_RISK); //$NON-NLS-1$

	/**
	* The "expression" structural property of this node type (child type: {@link Expression}). (added in JEP 325).
	* @since 3.18
	*/
	public static final ChildListPropertyDescriptor EXPRESSIONS2_PROPERTY =
	new ChildListPropertyDescriptor(SwitchCase.class, "expression", Expression.class, CYCLE_RISK); //$NON-NLS-1$);

	/**
	* The "switchLabeledRule" structural property of this node type (type: {@link Boolean}).
	* @since 3.18
	*/
	public static final SimplePropertyDescriptor SWITCH_LABELED_RULE_PROPERTY =
	new SimplePropertyDescriptor(SwitchCase.class, "switchLabeledRule", boolean.class, MANDATORY); //$NON-NLS-1$

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

	/**
	* A list of property descriptors (element type:
	* {@link StructuralPropertyDescriptor}),
	* or null if uninitialized.
	*/
	private static final List PROPERTY_DESCRIPTORS_12;

	static {
	List propertyList = new ArrayList(2);
	createPropertyList(SwitchCase.class, propertyList);
	addProperty(EXPRESSION_PROPERTY, propertyList);
	PROPERTY_DESCRIPTORS = reapPropertyList(propertyList);

	propertyList = new ArrayList(2);
	createPropertyList(SwitchCase.class, propertyList);
	addProperty(EXPRESSIONS2_PROPERTY , propertyList);
	addProperty(SWITCH_LABELED_RULE_PROPERTY, propertyList);
	PROPERTY_DESCRIPTORS_12 = 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
	* <code>AST.JLS*</code> constants
	* @return a list of property descriptors (element type:
	* {@link StructuralPropertyDescriptor})
	* @since 3.0
	*/
	public static List propertyDescriptors(int apiLevel) {
	return propertyDescriptors(apiLevel, false);
	}

	/**
	* 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
	* @param previewEnabled the previewEnabled flag
	* @return a list of property descriptors (element type:
	* {@link StructuralPropertyDescriptor})
	* @noreference This method is not intended to be referenced by clients.
	* @since 3.19
	*/
	public static List propertyDescriptors(int apiLevel, boolean previewEnabled) {
	if (apiLevel == AST.JLS12_INTERNAL && previewEnabled) {
	return PROPERTY_DESCRIPTORS_12;
	}
	return PROPERTY_DESCRIPTORS;
	}

	/**
	* The expression; <code>null</code> for none; lazily initialized (but
	* does <b>not</b> default to none).
	* @see #expressionInitialized
	*/
	private Expression optionalExpression = null;

	/**
	* <code>true</code> indicates "->" and <code>false</code> indicates ":".
	*/
	private boolean switchLabeledRule = false;


	/**
	* The expression list; <code>empty</code> for none;
	*/
	private ASTNode.NodeList expressions = null;

	/**
	* Indicates whether <code>optionalExpression</code> has been initialized.
	*/
	private boolean expressionInitialized = false;

	/**
	* Creates a new AST node for a switch case pseudo-statement owned by the
	* given AST. By default, there is no expression, but legal, and switchLabeledRule
	* is false which indicates ":".
	*
	* @param ast the AST that is to own this node
	*/
	SwitchCase(AST ast) {
	super(ast);
	if (isPreviewEnabled()) {
	this.expressions = new ASTNode.NodeList(EXPRESSIONS2_PROPERTY );
	}
	}

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

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

	@Override
	final boolean internalGetSetBooleanProperty(SimplePropertyDescriptor property, boolean get, boolean value) {
	if (property == SWITCH_LABELED_RULE_PROPERTY) {
	if (get) {
	return isSwitchLabeledRule();
	} else {
	setSwitchLabeledRule(value);
	return false;
	}
	}
	// allow default implementation to flag the error
	return super.internalGetSetBooleanProperty(property, get, value);
	}

	@Override
	final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) {
	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);
	}

	@Override
	final List internalGetChildListProperty(ChildListPropertyDescriptor property) {
	if (property == EXPRESSIONS2_PROPERTY ) {
	return expressions();
	}
	// allow default implementation to flag the error
	return super.internalGetChildListProperty(property);
	}

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

	@SuppressWarnings("unchecked")
	@Override
	ASTNode clone0(AST target) {
	SwitchCase result = new SwitchCase(target);
	result.setSourceRange(getStartPosition(), getLength());
	result.copyLeadingComment(this);
	if (isPreviewEnabled()) {
	result.expressions().addAll(
	ASTNode.copySubtrees(target, expressions()));
	} else {
	result.setExpression(
	(Expression) ASTNode.copySubtree(target, getExpression()));
	}
	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) {
	if (isPreviewEnabled()) {
	acceptChildren(visitor, this.expressions);
	} else {
	acceptChild(visitor, getExpression());
	}
	}
	visitor.endVisit(this);
	}

	/**
	* Returns the expression of this switch case, or
	* <code>null</code> if there is none (the "default:" case).
	*
	* @return the expression node, or <code>null</code> if there is none
	* @deprecated use expressions() (see JLS 12)
	*/
	public Expression getExpression() {
	if (!this.expressionInitialized) {
	// lazy init must be thread-safe for readers
	synchronized (this) {
	if (!this.expressionInitialized) {
	preLazyInit();
	this.optionalExpression = new SimpleName(this.ast);
	this.expressionInitialized = true;
	postLazyInit(this.optionalExpression, EXPRESSION_PROPERTY);
	}
	}
	}
	return this.optionalExpression;
	}

	/**
	* Returns the list of expressions of this switch case, or
	* <code>empty</code> if there is none (the "default:" case).
	* With previewEnabled flag as false it will have only one element.
	*
	* @return the list of expression nodes
	* (element type: {@link Expression})
	* @exception UnsupportedOperationException if this operation is used below JLS12
	* @exception UnsupportedOperationException if this expression is used with previewEnabled flag as false
	* @since 3.18
	*/
	public List expressions() {
	if (this.expressions == null) {
	unsupportedBelow12();
	unsupportedWithoutPreviewError();
	}
	return this.expressions;
	}

	/**
	* Sets the expression of this switch case, or clears it (turns it into
	* the "default:" case).
	*
	* @param expression the expression node, or <code>null</code> to
	* turn it into the "default:" case
	* @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>
	* @deprecated see JLS 12
	*/
	public void setExpression(Expression expression) {
	ASTNode oldChild = this.optionalExpression;
	preReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
	this.optionalExpression = expression;
	this.expressionInitialized = true;
	postReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
	}

	/**
	* Sets the switchLabeledRule of this switch case as <code>true</code> or <code>false</code>.
	* <code>true</code> indicates "->" and <code>false</code> indicates ":".

	* @param switchLabeledRule <code>true</code> or <code>false</code>
	* @exception UnsupportedOperationException if this operation is used below JLS12
	* @exception UnsupportedOperationException if this expression is used with previewEnabled flag as false
	* @since 3.18
	*/
	public void setSwitchLabeledRule(boolean switchLabeledRule) {
	unsupportedBelow12();
	unsupportedWithoutPreviewError();
	preValueChange(SWITCH_LABELED_RULE_PROPERTY);
	this.switchLabeledRule = switchLabeledRule;
	postValueChange(SWITCH_LABELED_RULE_PROPERTY);
	}

	/**
	* Gets the switchLabeledRule of this switch case as <code>true</code> or <code>false</code>.
	*<code>true</code> indicates "->" and <code>false</code> indicates ":".
	*
	* @return switchLabeledRule <code>true</code> or <code>false</code>
	* @exception UnsupportedOperationException if this operation is used below JLS12
	* @exception UnsupportedOperationException if this expression is used with previewEnabled flag as false
	* @since 3.18
	*/
	public boolean isSwitchLabeledRule() {
	unsupportedBelow12();
	unsupportedWithoutPreviewError();
	return this.switchLabeledRule;
	}

	/**
	* Returns whether this switch case represents the "default:" case.
	* <p>
	* This convenience method is equivalent to
	* <code>getExpression() == null</code> or <code>expressions().isEmpty()</code>.
	* </p>
	*
	* @return <code>true</code> if this is the default switch case, and
	* <code>false</code> if this is a non-default switch case
	*/
	public boolean isDefault() {
	if (isPreviewEnabled()) {
	return expressions().isEmpty();
	}
	return getExpression() == null;
	}

	@Override
	int memSize() {
	return super.memSize() + 2 * 4;
	}

	@Override
	int treeSize() {
	return
	memSize()
	+ (this.optionalExpression == null ? 0 : this.optionalExpression.treeSize());
	}


	}