| /******************************************************************************* |
| * Copyright (c) 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: |
| * wharley@bea.com - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.internal.compiler.apt.model; |
| |
| import javax.lang.model.type.NoType; |
| import javax.lang.model.type.NullType; |
| import javax.lang.model.type.TypeKind; |
| import javax.lang.model.type.TypeVisitor; |
| |
| /** |
| * An implementation of NoType, which is used to represent certain psuedo-types. |
| * @see NoType. |
| */ |
| public class NoTypeImpl implements NoType, NullType |
| { |
| private final TypeKind _kind; |
| |
| public static final NoType NO_TYPE_NONE = new NoTypeImpl(TypeKind.NONE); |
| public static final NoType NO_TYPE_VOID = new NoTypeImpl(TypeKind.VOID); |
| public static final NoType NO_TYPE_PACKAGE = new NoTypeImpl(TypeKind.PACKAGE); |
| public static final NullType NULL_TYPE = new NoTypeImpl(TypeKind.NULL); |
| |
| private NoTypeImpl(TypeKind kind) { |
| _kind = kind; |
| } |
| |
| @Override |
| public <R, P> R accept(TypeVisitor<R, P> v, P p) |
| { |
| switch(this.getKind()) |
| { |
| case NULL : |
| return v.visitNull(this, p); |
| default: |
| return v.visitNoType(this, p); |
| } |
| } |
| |
| @Override |
| public TypeKind getKind() |
| { |
| return _kind; |
| } |
| |
| public String toString() |
| { |
| switch (_kind) { |
| default: |
| case NONE: |
| return "<none>"; //$NON-NLS-1$ |
| case NULL: |
| return "null"; //$NON-NLS-1$ |
| case VOID: |
| return "void"; //$NON-NLS-1$ |
| case PACKAGE: |
| return "package"; //$NON-NLS-1$ |
| } |
| } |
| |
| } |