/******************************************************************************* | |
* Copyright (c) 2001 International Business Machines Corp. and others. | |
* All rights reserved. This program and the accompanying materials | |
* are made available under the terms of the Common Public License v0.5 | |
* which accompanies this distribution, and is available at | |
* http://www.eclipse.org/legal/cpl-v05.html | |
* | |
* Contributors: | |
* IBM Corporation - initial API and implementation | |
******************************************************************************/ | |
package org.eclipse.jdt.core.dom; | |
/** | |
* Type literal AST node type. | |
* | |
* <pre> | |
* TypeLiteral: | |
* ( Type | <b>void</b> ) <b>.</b> <b>class</b> | |
* </pre> | |
* | |
* @since 2.0 | |
*/ | |
public class TypeLiteral extends Expression { | |
/** | |
* The type; lazily initialized; defaults to a unspecified, | |
* legal type. | |
*/ | |
private Type type = null; | |
/** | |
* Creates a new AST node for a type literal owned by the given | |
* AST. By default, the expression has an unspecified (but legal) type. | |
* <p> | |
* N.B. This constructor is package-private. | |
* </p> | |
* | |
* @param ast the AST that is to own this node | |
*/ | |
TypeLiteral(AST ast) { | |
super(ast); | |
} | |
/* (omit javadoc for this method) | |
* Method declared on ASTNode. | |
*/ | |
ASTNode clone(AST target) { | |
TypeLiteral result = new TypeLiteral(target); | |
result.setType((Type) getType().clone(target)); | |
return result; | |
} | |
/* (omit javadoc for this method) | |
* Method declared on ASTNode. | |
*/ | |
public boolean subtreeMatch(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) { | |
acceptChild(visitor, getType()); | |
} | |
visitor.endVisit(this); | |
} | |
/** | |
* Returns the type in this type literal expression. | |
* | |
* @return the type | |
*/ | |
public Type getType() { | |
if (type == null) { | |
// lazy initialize - use setter to ensure parent link set too | |
setType(getAST().newPrimitiveType(PrimitiveType.INT)); | |
} | |
return type; | |
} | |
/** | |
* Sets the type in this type literal expression to the given type. | |
* | |
* @param type the new type | |
* @exception $precondition-violation:different-ast$ | |
* @exception $precondition-violation:not-unparented$ | |
*/ | |
public void setType(Type type) { | |
if (type == null) { | |
throw new IllegalArgumentException(); | |
} | |
replaceChild((ASTNode) this.type, (ASTNode) type, false); | |
this.type = type; | |
} | |
/* (omit javadoc for this method) | |
* Method declared on ASTNode. | |
*/ | |
int memSize() { | |
// treat Operator as free | |
return BASE_NODE_SIZE + 1 * 4; | |
} | |
/* (omit javadoc for this method) | |
* Method declared on ASTNode. | |
*/ | |
int treeSize() { | |
return | |
memSize() | |
+ (type == null ? 0 : getType().treeSize()); | |
} | |
} | |