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

 /*******************************************************************************
  * Copyright (c) 2003, 2010 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
  *     Technical University Berlin - extended API and implementation
  *******************************************************************************/

 package org.eclipse.jdt.core.dom;

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

 /**
  * Type parameter node (added in JLS3 API).
  * <pre>
  * TypeParameter:
  *    TypeVariable [ <b>extends</b> Type { <b>&</b> Type } ]
  * </pre>
  *
  * @since 3.1
  * @noinstantiate This class is not intended to be instantiated by clients.
  */
 public class TypeParameter extends ASTNode {

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

 	/**
 	 * The "typeBounds" structural property of this node type (element type: {@link Type}).
 	 */
 	public static final ChildListPropertyDescriptor TYPE_BOUNDS_PROPERTY =
 		new ChildListPropertyDescriptor(TypeParameter.class, "typeBounds", Type.class, NO_CYCLE_RISK); //$NON-NLS-1$

 //{ObjectTeams: distinguish value parameters and <B base R>:
 	public static final SimplePropertyDescriptor VALUE_PARAMETER_PROPERTY =
 		new SimplePropertyDescriptor(TypeParameter.class, "valueParameter", boolean.class, MANDATORY); //$NON-NLS-1$
 	public static final SimplePropertyDescriptor BASE_BOUND_PROPERTY =
 		new SimplePropertyDescriptor(TypeParameter.class, "baseBound", boolean.class, MANDATORY); //$NON-NLS-1$
 // SH}

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

 	static {
 		List propertyList = new ArrayList(3);
 		createPropertyList(TypeParameter.class, propertyList);
 		addProperty(NAME_PROPERTY, propertyList);
 		addProperty(TYPE_BOUNDS_PROPERTY, propertyList);
 //{ObjectTeams: value parameter:
 		addProperty(VALUE_PARAMETER_PROPERTY, propertyList);
 // SH}
 		PROPERTY_DESCRIPTORS = reapPropertyList(propertyList);
 	}

 //{ObjectTeams: value parameter, <B base R>:
 	private boolean isValueParameter= false;
 	private boolean hasBaseBound= false;
 //SH}

 	/**
 	 * 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 type variable node; lazily initialized; defaults to an unspecfied,
 	 * but legal, name.
 	 */
 	private SimpleName typeVariableName = null;

 	/**
 	 * The type bounds (element type: {@link Type}).
 	 * Defaults to an empty list.
 	 */
 	private ASTNode.NodeList typeBounds =
 		new ASTNode.NodeList(TYPE_BOUNDS_PROPERTY);

 	/**
 	 * Creates a new unparented node for a parameterized type owned by the
 	 * given AST. By default, an unspecified, but legal, type variable name,
 	 * and no type bounds.
 	 * <p>
 	 * N.B. This constructor is package-private.
 	 * </p>
 	 *
 	 * @param ast the AST that is to own this node
 	 */
 	TypeParameter(AST ast) {
 		super(ast);
 	    unsupportedIn2();
 	}

 	/* (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;
 			}
 		}
 		// allow default implementation to flag the error
 		return super.internalGetSetChildProperty(property, get, child);
 	}

 //{ObjectTeams: value parameter?
 	boolean internalGetSetBooleanProperty(SimplePropertyDescriptor property, boolean get, boolean value) {
 		if (property == VALUE_PARAMETER_PROPERTY) {
 			if (get) {
 				return isValueParameter();
 			} else {
 				setIsValueParameter(value);
 				return false;
 			}
 		}
 		// allow default implementation to flag the error
 		return super.internalGetSetBooleanProperty(property, get, value);
 	}
 // SH}
 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	final List internalGetChildListProperty(ChildListPropertyDescriptor property) {
 		if (property == TYPE_BOUNDS_PROPERTY) {
 			return typeBounds();
 		}
 		// allow default implementation to flag the error
 		return super.internalGetChildListProperty(property);
 	}

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

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	ASTNode clone0(AST target) {
 		TypeParameter result = new TypeParameter(target);
 		result.setSourceRange(getStartPosition(), getLength());
 		result.setName((SimpleName) ((ASTNode) getName()).clone(target));
 //{ObjectTeams: value parameter?
 		result.setIsValueParameter(this.isValueParameter());
 // SH}
 		result.typeBounds().addAll(
 			ASTNode.copySubtrees(target, typeBounds()));
 		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, getName());
 			acceptChildren(visitor, this.typeBounds);
 		}
 		visitor.endVisit(this);
 	}

 	/**
 	 * Returns the name of the type variable declared in this type parameter.
 	 *
 	 * @return the name of the type variable
 	 */
 	public SimpleName getName() {
 		if (this.typeVariableName == null) {
 			// lazy init must be thread-safe for readers
 			synchronized (this) {
 				if (this.typeVariableName == null) {
 					preLazyInit();
 					this.typeVariableName = new SimpleName(this.ast);
 					postLazyInit(this.typeVariableName, NAME_PROPERTY);
 				}
 			}
 		}
 		return this.typeVariableName;
 	}

 	/**
 	 * Resolves and returns the binding for this type parameter.
 	 * <p>
 	 * Note that bindings are generally unavailable unless requested when the
 	 * AST is being built.
 	 * </p>
 	 *
 	 * @return the binding, or <code>null</code> if the binding cannot be
 	 *    resolved
 	 */
 	public final ITypeBinding resolveBinding() {
 		return this.ast.getBindingResolver().resolveTypeParameter(this);
 	}

 	/**
 	 * Sets the name of the type variable of this type parameter to the given
 	 * name.
 	 *
 	 * @param typeName the new name of this type 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 setName(SimpleName typeName) {
 		if (typeName == null) {
 			throw new IllegalArgumentException();
 		}
 		ASTNode oldChild = this.typeVariableName;
 		preReplaceChild(oldChild, typeName, NAME_PROPERTY);
 		this.typeVariableName = typeName;
 		postReplaceChild(oldChild, typeName, NAME_PROPERTY);
 	}

 	/**
 	 * Returns the live ordered list of type bounds of this type parameter.
 	 * For the type parameter to be plausible, there can be at most one
 	 * class in the list, and it must be first, and the remaining ones must be
 	 * interfaces; the list should not contain primitive types (but array types
 	 * and parameterized types are allowed).
 	 *
 	 * @return the live list of type bounds
 	 *    (element type: {@link Type})
 	 */
 	public List typeBounds() {
 		return this.typeBounds;
 	}

 //{ObjectTeams: value parameters & <B base R>:
 	/**
 	 * Returns whether this type parameter is a value parameter.
 	 */
 	public boolean isValueParameter() {
 		return this.isValueParameter;
 	}

 	/**
 	 * Sets whether this type parameter is a value parameter.
 	 */
 	public void setIsValueParameter(boolean isValueParameter) {
 		preValueChange(VALUE_PARAMETER_PROPERTY);
 		this.isValueParameter= isValueParameter;
 		postValueChange(VALUE_PARAMETER_PROPERTY);
 	}

 	/**
 	 * Returns whether this type parameter has a "base" bound.
 	 */
 	public boolean hasBaseBound() {
 		return this.hasBaseBound;
 	}

 	/**
 	 * Sets whether this type parameter has a "base" bound.
 	 */
 	public void setHasBaseBound(boolean hasBaseBound) {
 		preValueChange(BASE_BOUND_PROPERTY);
 		this.hasBaseBound = hasBaseBound;
 		postValueChange(BASE_BOUND_PROPERTY);
 	}
 // SH}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	int memSize() {
 		// treat Code as free
 		return BASE_NODE_SIZE + 2 * 4;
 	}

 	/* (omit javadoc for this method)
 	 * Method declared on ASTNode.
 	 */
 	int treeSize() {
 		return
 			memSize()
 			+ (this.typeVariableName == null ? 0 : getName().treeSize())
 			+ this.typeBounds.listSize();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2003, 2010 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
	* Technical University Berlin - extended API and implementation
	*******************************************************************************/

	package org.eclipse.jdt.core.dom;

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

	/**
	* Type parameter node (added in JLS3 API).
	* <pre>
	* TypeParameter:
	* TypeVariable [ <b>extends</b> Type { <b>&</b> Type } ]
	* </pre>
	*
	* @since 3.1
	* @noinstantiate This class is not intended to be instantiated by clients.
	*/
	public class TypeParameter extends ASTNode {

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

	/**
	* The "typeBounds" structural property of this node type (element type: {@link Type}).
	*/
	public static final ChildListPropertyDescriptor TYPE_BOUNDS_PROPERTY =
	new ChildListPropertyDescriptor(TypeParameter.class, "typeBounds", Type.class, NO_CYCLE_RISK); //$NON-NLS-1$

	//{ObjectTeams: distinguish value parameters and <B base R>:
	public static final SimplePropertyDescriptor VALUE_PARAMETER_PROPERTY =
	new SimplePropertyDescriptor(TypeParameter.class, "valueParameter", boolean.class, MANDATORY); //$NON-NLS-1$
	public static final SimplePropertyDescriptor BASE_BOUND_PROPERTY =
	new SimplePropertyDescriptor(TypeParameter.class, "baseBound", boolean.class, MANDATORY); //$NON-NLS-1$
	// SH}

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

	static {
	List propertyList = new ArrayList(3);
	createPropertyList(TypeParameter.class, propertyList);
	addProperty(NAME_PROPERTY, propertyList);
	addProperty(TYPE_BOUNDS_PROPERTY, propertyList);
	//{ObjectTeams: value parameter:
	addProperty(VALUE_PARAMETER_PROPERTY, propertyList);
	// SH}
	PROPERTY_DESCRIPTORS = reapPropertyList(propertyList);
	}

	//{ObjectTeams: value parameter, <B base R>:
	private boolean isValueParameter= false;
	private boolean hasBaseBound= false;
	//SH}

	/**
	* 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 type variable node; lazily initialized; defaults to an unspecfied,
	* but legal, name.
	*/
	private SimpleName typeVariableName = null;

	/**
	* The type bounds (element type: {@link Type}).
	* Defaults to an empty list.
	*/
	private ASTNode.NodeList typeBounds =
	new ASTNode.NodeList(TYPE_BOUNDS_PROPERTY);

	/**
	* Creates a new unparented node for a parameterized type owned by the
	* given AST. By default, an unspecified, but legal, type variable name,
	* and no type bounds.
	* <p>
	* N.B. This constructor is package-private.
	* </p>
	*
	* @param ast the AST that is to own this node
	*/
	TypeParameter(AST ast) {
	super(ast);
	unsupportedIn2();
	}

	/* (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;
	}
	}
	// allow default implementation to flag the error
	return super.internalGetSetChildProperty(property, get, child);
	}

	//{ObjectTeams: value parameter?
	boolean internalGetSetBooleanProperty(SimplePropertyDescriptor property, boolean get, boolean value) {
	if (property == VALUE_PARAMETER_PROPERTY) {
	if (get) {
	return isValueParameter();
	} else {
	setIsValueParameter(value);
	return false;
	}
	}
	// allow default implementation to flag the error
	return super.internalGetSetBooleanProperty(property, get, value);
	}
	// SH}
	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	final List internalGetChildListProperty(ChildListPropertyDescriptor property) {
	if (property == TYPE_BOUNDS_PROPERTY) {
	return typeBounds();
	}
	// allow default implementation to flag the error
	return super.internalGetChildListProperty(property);
	}

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

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	ASTNode clone0(AST target) {
	TypeParameter result = new TypeParameter(target);
	result.setSourceRange(getStartPosition(), getLength());
	result.setName((SimpleName) ((ASTNode) getName()).clone(target));
	//{ObjectTeams: value parameter?
	result.setIsValueParameter(this.isValueParameter());
	// SH}
	result.typeBounds().addAll(
	ASTNode.copySubtrees(target, typeBounds()));
	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, getName());
	acceptChildren(visitor, this.typeBounds);
	}
	visitor.endVisit(this);
	}

	/**
	* Returns the name of the type variable declared in this type parameter.
	*
	* @return the name of the type variable
	*/
	public SimpleName getName() {
	if (this.typeVariableName == null) {
	// lazy init must be thread-safe for readers
	synchronized (this) {
	if (this.typeVariableName == null) {
	preLazyInit();
	this.typeVariableName = new SimpleName(this.ast);
	postLazyInit(this.typeVariableName, NAME_PROPERTY);
	}
	}
	}
	return this.typeVariableName;
	}

	/**
	* Resolves and returns the binding for this type parameter.
	* <p>
	* Note that bindings are generally unavailable unless requested when the
	* AST is being built.
	* </p>
	*
	* @return the binding, or <code>null</code> if the binding cannot be
	* resolved
	*/
	public final ITypeBinding resolveBinding() {
	return this.ast.getBindingResolver().resolveTypeParameter(this);
	}

	/**
	* Sets the name of the type variable of this type parameter to the given
	* name.
	*
	* @param typeName the new name of this type 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 setName(SimpleName typeName) {
	if (typeName == null) {
	throw new IllegalArgumentException();
	}
	ASTNode oldChild = this.typeVariableName;
	preReplaceChild(oldChild, typeName, NAME_PROPERTY);
	this.typeVariableName = typeName;
	postReplaceChild(oldChild, typeName, NAME_PROPERTY);
	}

	/**
	* Returns the live ordered list of type bounds of this type parameter.
	* For the type parameter to be plausible, there can be at most one
	* class in the list, and it must be first, and the remaining ones must be
	* interfaces; the list should not contain primitive types (but array types
	* and parameterized types are allowed).
	*
	* @return the live list of type bounds
	* (element type: {@link Type})
	*/
	public List typeBounds() {
	return this.typeBounds;
	}

	//{ObjectTeams: value parameters & <B base R>:
	/**
	* Returns whether this type parameter is a value parameter.
	*/
	public boolean isValueParameter() {
	return this.isValueParameter;
	}

	/**
	* Sets whether this type parameter is a value parameter.
	*/
	public void setIsValueParameter(boolean isValueParameter) {
	preValueChange(VALUE_PARAMETER_PROPERTY);
	this.isValueParameter= isValueParameter;
	postValueChange(VALUE_PARAMETER_PROPERTY);
	}

	/**
	* Returns whether this type parameter has a "base" bound.
	*/
	public boolean hasBaseBound() {
	return this.hasBaseBound;
	}

	/**
	* Sets whether this type parameter has a "base" bound.
	*/
	public void setHasBaseBound(boolean hasBaseBound) {
	preValueChange(BASE_BOUND_PROPERTY);
	this.hasBaseBound = hasBaseBound;
	postValueChange(BASE_BOUND_PROPERTY);
	}
	// SH}

	/* (omit javadoc for this method)
	* Method declared on ASTNode.
	*/
	int memSize() {
	// treat Code as free
	return BASE_NODE_SIZE + 2 * 4;
	}

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