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

 /*******************************************************************************
  * Copyright (c) 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
  *
  * 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;

 /**
  * Yield statement AST node type.
  *
  * <pre>
  * YieldStatement:
  *		<b>Yield</b> <b>{ Identifier/Expression }</b>
  * </pre>
  *
  * @since 3.19 BETA_JAVA13
  * @noinstantiate This class is not intended to be instantiated by clients.
  * @noreference This class is not intended to be referenced by clients as it is a part of Java preview feature.
  */
 @SuppressWarnings("rawtypes")
 public class YieldStatement extends Statement {

 	/**
 	 * The "expression" structural property of this node type (child type: {@link Expression}). (added in JEP 354).
 	 */
 	public static final ChildPropertyDescriptor EXPRESSION_PROPERTY =
 			new ChildPropertyDescriptor(YieldStatement.class, "expression", Expression.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;

 	/**
 	 * <code>true</code> indicates implicit and <code>false</code> indicates not implicit.
 	 */
 	private boolean isImplicit = false;

 	static {
 		List properyList = new ArrayList(2);
 		createPropertyList(YieldStatement.class, properyList);
 		addProperty(EXPRESSION_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 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 BETA_JAVA13
 	 */
 	public static List propertyDescriptors(int apiLevel, boolean previewEnabled) {
 		if (apiLevel == AST.JLS13_INTERNAL && previewEnabled) {
 			return PROPERTY_DESCRIPTORS;
 		}
 		return null;
 	}

 	/**
 	 * The expression
 	 */
 	private Expression expression = null;

 	/**
 	 * Creates a new unparented Yield statement node owned by the given
 	 * AST. By default, the Yield statement has identifier/expression.
 	 * <p>
 	 * N.B. This constructor is package-private.
 	 * </p>
 	 *
 	 * @param ast the AST that is to own this node
 	 * @exception UnsupportedOperationException if this operation is used other than JLS13
 	 * @exception UnsupportedOperationException if this expression is used with previewEnabled flag as false
 	 */
 	YieldStatement(AST ast) {
 		super(ast);
 		supportedOnlyIn13();
 		unsupportedWithoutPreviewError();
 	}

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

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

 	@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 int getNodeType0() {
 		return YIELD_STATEMENT;
 	}

 	@Override
 	ASTNode clone0(AST target) {
 		YieldStatement result = new YieldStatement(target);
 		result.setSourceRange(getStartPosition(), getLength());
 		result.copyLeadingComment(this);
 		if (this.ast.apiLevel >= AST.JLS12_INTERNAL) {
 			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 (this.ast.apiLevel >= AST.JLS13_INTERNAL) {
 				acceptChild(visitor, getExpression());
 			}
 		}
 		visitor.endVisit(this);
 	}

 	/**
 	 * Returns the expression of this Yield statement, or <code>null</code> if
 	 * there is none.
 	 *
 	 * @return the expression, or <code>null</code> if there is none
 	 * @exception UnsupportedOperationException if this operation is used other than JLS13
 	 * @noreference This method is not intended to be referenced by clients as it is a part of Java preview feature.
 	 * @nooverride This method is not intended to be re-implemented or extended by clients as it is a part of Java preview feature.
 	 */
 	public Expression getExpression() {
 		supportedOnlyIn13();
 		return this.expression;
 	}

 	/**
 	 * Sets or clears the expression of this Yield statement.
 	 *
 	 * @param expression the expression
 	 * @exception IllegalArgumentException if:
 	 * <ul>
 	 * <li>the node belongs to a different AST</li>
 	 * <li>the node already has a parent</li>
 	 * </ul>
 	 * @exception UnsupportedOperationException if this operation is used other than JLS13
 	 * @noreference This method is not intended to be referenced by clients as it is a part of Java preview feature.
 	 * @nooverride This method is not intended to be re-implemented or extended by clients as it is a part of Java preview feature.
 	 */
 	public void setExpression(Expression expression) {
 		supportedOnlyIn13();
 		ASTNode oldChild = this.expression;
 		preReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
 		this.expression = expression;
 		postReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
 	}

 	/**
 	 * Gets the isImplicit of this break statement as <code>true</code> or <code>false</code>.
 	 *<code>true</code> indicates implicit and <code>false</code> indicates not implicit.
 	 *
 	 * @return isImplicit <code>true</code> or <code>false</code>
 	 * @exception UnsupportedOperationException if this operation is used other than JLS13
 	 * @noreference This method is not intended to be referenced by clients as it is a part of Java preview feature.
 	 * @nooverride This method is not intended to be re-implemented or extended by clients as it is a part of Java preview feature.
 	 */
 	public boolean isImplicit() {
 		supportedOnlyIn13();
 		return this.isImplicit;
 	}

 	/**
 	 * Sets the isImplicit of this break statement as <code>true</code> or <code>false</code>.
 	 * <code>true</code> indicates implicit and <code>false</code> indicates not implicit. This flag is
 	 * generated by compiler and is not expected to be set by client.

 	 * @param isImplicit <code>true</code> or <code>false</code>
 	 * @exception UnsupportedOperationException if this operation is used other than JLS13
 	 */
 	void setImplicit(boolean isImplicit) {
 		supportedOnlyIn13();
 		this.isImplicit = isImplicit;
 	}


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

 	@Override
 	int treeSize() {
 		return
 			memSize()
 			+ (this.expression == null ? 0 : getExpression().treeSize());
 	}
 }
	/*******************************************************************************
	* Copyright (c) 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
	*
	* 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;

	/**
	* Yield statement AST node type.
	*
	* <pre>
	* YieldStatement:
	* <b>Yield</b> <b>{ Identifier/Expression }</b>
	* </pre>
	*
	* @since 3.19 BETA_JAVA13
	* @noinstantiate This class is not intended to be instantiated by clients.
	* @noreference This class is not intended to be referenced by clients as it is a part of Java preview feature.
	*/
	@SuppressWarnings("rawtypes")
	public class YieldStatement extends Statement {

	/**
	* The "expression" structural property of this node type (child type: {@link Expression}). (added in JEP 354).
	*/
	public static final ChildPropertyDescriptor EXPRESSION_PROPERTY =
	new ChildPropertyDescriptor(YieldStatement.class, "expression", Expression.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;

	/**
	* <code>true</code> indicates implicit and <code>false</code> indicates not implicit.
	*/
	private boolean isImplicit = false;

	static {
	List properyList = new ArrayList(2);
	createPropertyList(YieldStatement.class, properyList);
	addProperty(EXPRESSION_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 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 BETA_JAVA13
	*/
	public static List propertyDescriptors(int apiLevel, boolean previewEnabled) {
	if (apiLevel == AST.JLS13_INTERNAL && previewEnabled) {
	return PROPERTY_DESCRIPTORS;
	}
	return null;
	}

	/**
	* The expression
	*/
	private Expression expression = null;

	/**
	* Creates a new unparented Yield statement node owned by the given
	* AST. By default, the Yield statement has identifier/expression.
	* <p>
	* N.B. This constructor is package-private.
	* </p>
	*
	* @param ast the AST that is to own this node
	* @exception UnsupportedOperationException if this operation is used other than JLS13
	* @exception UnsupportedOperationException if this expression is used with previewEnabled flag as false
	*/
	YieldStatement(AST ast) {
	super(ast);
	supportedOnlyIn13();
	unsupportedWithoutPreviewError();
	}

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

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

	@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 int getNodeType0() {
	return YIELD_STATEMENT;
	}

	@Override
	ASTNode clone0(AST target) {
	YieldStatement result = new YieldStatement(target);
	result.setSourceRange(getStartPosition(), getLength());
	result.copyLeadingComment(this);
	if (this.ast.apiLevel >= AST.JLS12_INTERNAL) {
	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 (this.ast.apiLevel >= AST.JLS13_INTERNAL) {
	acceptChild(visitor, getExpression());
	}
	}
	visitor.endVisit(this);
	}

	/**
	* Returns the expression of this Yield statement, or <code>null</code> if
	* there is none.
	*
	* @return the expression, or <code>null</code> if there is none
	* @exception UnsupportedOperationException if this operation is used other than JLS13
	* @noreference This method is not intended to be referenced by clients as it is a part of Java preview feature.
	* @nooverride This method is not intended to be re-implemented or extended by clients as it is a part of Java preview feature.
	*/
	public Expression getExpression() {
	supportedOnlyIn13();
	return this.expression;
	}

	/**
	* Sets or clears the expression of this Yield statement.
	*
	* @param expression the expression
	* @exception IllegalArgumentException if:
	* <ul>
	* <li>the node belongs to a different AST</li>
	* <li>the node already has a parent</li>
	* </ul>
	* @exception UnsupportedOperationException if this operation is used other than JLS13
	* @noreference This method is not intended to be referenced by clients as it is a part of Java preview feature.
	* @nooverride This method is not intended to be re-implemented or extended by clients as it is a part of Java preview feature.
	*/
	public void setExpression(Expression expression) {
	supportedOnlyIn13();
	ASTNode oldChild = this.expression;
	preReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
	this.expression = expression;
	postReplaceChild(oldChild, expression, EXPRESSION_PROPERTY);
	}

	/**
	* Gets the isImplicit of this break statement as <code>true</code> or <code>false</code>.
	*<code>true</code> indicates implicit and <code>false</code> indicates not implicit.
	*
	* @return isImplicit <code>true</code> or <code>false</code>
	* @exception UnsupportedOperationException if this operation is used other than JLS13
	* @noreference This method is not intended to be referenced by clients as it is a part of Java preview feature.
	* @nooverride This method is not intended to be re-implemented or extended by clients as it is a part of Java preview feature.
	*/
	public boolean isImplicit() {
	supportedOnlyIn13();
	return this.isImplicit;
	}

	/**
	* Sets the isImplicit of this break statement as <code>true</code> or <code>false</code>.
	* <code>true</code> indicates implicit and <code>false</code> indicates not implicit. This flag is
	* generated by compiler and is not expected to be set by client.

	* @param isImplicit <code>true</code> or <code>false</code>
	* @exception UnsupportedOperationException if this operation is used other than JLS13
	*/
	void setImplicit(boolean isImplicit) {
	supportedOnlyIn13();
	this.isImplicit = isImplicit;
	}


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

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