| /******************************************************************************* |
| * Copyright (c) 2005, 2007 BEA Systems, Inc. |
| * 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: |
| * tyeung@bea.com - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.apt.core.internal.declaration; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.jdt.apt.core.internal.env.BaseProcessorEnv; |
| import org.eclipse.jdt.apt.core.internal.util.Factory; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.Expression; |
| import org.eclipse.jdt.core.dom.ITypeBinding; |
| import org.eclipse.jdt.core.dom.SimpleName; |
| import org.eclipse.jdt.core.dom.Type; |
| import org.eclipse.jdt.core.dom.VariableDeclarationFragment; |
| |
| import com.sun.mirror.declaration.FieldDeclaration; |
| import com.sun.mirror.type.TypeMirror; |
| import com.sun.mirror.util.DeclarationVisitor; |
| |
| /** |
| * This field declaration implementation is based on the variable declaration |
| * fragment ast node in the parse tree. |
| * The most common scenario where such implementation is required is when |
| * the type of the field cannot be resolved. In this case, the jdt will not |
| * create the field binding. Information such as the declaring type as well |
| * as the name of the field will still be captured and make available to clients. |
| */ |
| public class ASTBasedFieldDeclarationImpl |
| extends ASTBasedMemberDeclarationImpl |
| implements FieldDeclaration { |
| |
| public ASTBasedFieldDeclarationImpl( |
| final VariableDeclarationFragment astNode, |
| final IFile file, |
| final BaseProcessorEnv env) |
| { |
| super(astNode, file, env); |
| assert astNode.getParent() != null && |
| astNode.getParent().getNodeType() == ASTNode.FIELD_DECLARATION : |
| "parent isn't a field declaration"; //$NON-NLS-1$ |
| } |
| |
| public void accept(DeclarationVisitor visitor) |
| { |
| visitor.visitFieldDeclaration(this); |
| } |
| |
| public String getConstantExpression() |
| { |
| final Object constant = getConstantValue(); |
| if( constant == null ) return null; |
| return constant.toString(); |
| } |
| |
| public Object getConstantValue() |
| { |
| final VariableDeclarationFragment fragment = getAstNode(); |
| final Expression initializer = fragment.getInitializer(); |
| if( initializer == null ) return null; |
| return initializer.resolveConstantExpressionValue(); |
| } |
| |
| public String getSimpleName() { |
| final VariableDeclarationFragment fragment = getAstNode(); |
| final SimpleName nameNode = fragment.getName(); |
| return nameNode == null ? EMPTY_STRING : nameNode.getIdentifier(); |
| } |
| |
| public TypeMirror getType() |
| { |
| final org.eclipse.jdt.core.dom.FieldDeclaration fieldASTNode = getFieldDeclarationAstNode(); |
| final Type type = fieldASTNode.getType(); |
| if( type == null ) |
| return null; |
| final ITypeBinding typeBinding = type.resolveBinding(); |
| // This is probably why we end up with an ast based implementation. |
| if( typeBinding == null ) |
| return Factory.createErrorClassType(type.toString()); |
| else{ |
| TypeMirror typeMirror = Factory.createTypeMirror( typeBinding, _env ); |
| if( typeMirror == null ) |
| typeMirror = Factory.createErrorClassType(typeBinding); |
| return typeMirror; |
| } |
| } |
| |
| public String toString() |
| { |
| /* |
| final org.eclipse.jdt.core.dom.FieldDeclaration fieldASTNode = getFieldDeclarationAstNode(); |
| StringBuilder buffer = new StringBuilder(); |
| final Type type = fieldASTNode.getType(); |
| if( type != null ){ |
| buffer.append(type); |
| buffer.append(' '); |
| } |
| buffer.append( getSimpleName() ); |
| |
| return buffer.toString(); |
| */ |
| return getSimpleName(); |
| } |
| |
| public MirrorKind kind(){ return MirrorKind.FIELD; } |
| |
| VariableDeclarationFragment getAstNode() |
| { |
| return (VariableDeclarationFragment)_astNode; |
| } |
| |
| org.eclipse.jdt.core.dom.FieldDeclaration getFieldDeclarationAstNode() |
| { |
| return (org.eclipse.jdt.core.dom.FieldDeclaration)_astNode.getParent(); |
| } |
| } |