/******************************************************************************* | |
* 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; | |
/** | |
* Local type declaration statement AST node type. | |
* <p> | |
* This kind of node is used to convert a type declaration | |
* (<code>TypeDeclaration</code>) into a statement | |
* (<code>Statement</code>) by wrapping it. | |
* </p> | |
* <pre> | |
* TypeDeclarationStatement: | |
* TypeDeclaration | |
* </pre> | |
* | |
* @since 2.0 | |
*/ | |
public class TypeDeclarationStatement extends Statement { | |
/** | |
* The type declaration; lazily initialized; defaults to a unspecified, | |
* but legal, type declaration. | |
*/ | |
private TypeDeclaration typeDecl = null; | |
/** | |
* Creates a new unparented local type declaration statement node owned | |
* by the given AST. By default, the local type declaration is an | |
* unspecified, but legal, type declaration. | |
* <p> | |
* N.B. This constructor is package-private. | |
* </p> | |
* | |
* @param ast the AST that is to own this node | |
*/ | |
TypeDeclarationStatement(AST ast) { | |
super(ast); | |
} | |
/* (omit javadoc for this method) | |
* Method declared on ASTNode. | |
*/ | |
ASTNode clone(AST target) { | |
TypeDeclarationStatement result = | |
new TypeDeclarationStatement(target); | |
result.setLeadingComment(getLeadingComment()); | |
result.setTypeDeclaration( | |
(TypeDeclaration) getTypeDeclaration().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, getTypeDeclaration()); | |
} | |
visitor.endVisit(this); | |
} | |
/** | |
* Returns the type declaration of this local type declaration | |
* statement. | |
* | |
* @return the type declaration node | |
*/ | |
public TypeDeclaration getTypeDeclaration() { | |
if (typeDecl == null) { | |
// lazy initialize - use setter to ensure parent link set too | |
setTypeDeclaration(new TypeDeclaration(getAST())); | |
} | |
return typeDecl; | |
} | |
/** | |
* Sets the type declaration of this local type declaration | |
* statement. | |
* | |
* @param decl the type declaration node | |
* @exception $precondition-violation:different-ast$ | |
* @exception $precondition-violation:not-unparented$ | |
* @exception $postcondition-violation:ast-cycle$ | |
*/ | |
public void setTypeDeclaration(TypeDeclaration decl) { | |
if (decl == null) { | |
throw new IllegalArgumentException(); | |
} | |
// a TypeDeclarationStatement may occur inside an | |
// TypeDeclaration - must check cycles | |
replaceChild(this.typeDecl, decl, true); | |
this.typeDecl= decl; | |
} | |
/** | |
* Resolves and returns the binding for the class or interface declared in | |
* this type declaration statement. | |
* <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 ITypeBinding resolveBinding() { | |
// forward request to the wrapped type declaration | |
TypeDeclaration d = getTypeDeclaration(); | |
return d.resolveBinding(); | |
} | |
/* (omit javadoc for this method) | |
* Method declared on ASTNode. | |
*/ | |
int memSize() { | |
return super.memSize() + 1 * 4; | |
} | |
/* (omit javadoc for this method) | |
* Method declared on ASTNode. | |
*/ | |
int treeSize() { | |
return | |
memSize() | |
+ (typeDecl == null ? 0 : getTypeDeclaration().treeSize()); | |
} | |
} | |