| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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 |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.corext.refactoring.typeconstraints.types; |
| |
| public final class UnboundWildcardType extends WildcardType { |
| |
| protected UnboundWildcardType(TypeEnvironment environment) { |
| super(environment); |
| } |
| |
| public int getKind() { |
| return UNBOUND_WILDCARD_TYPE; |
| } |
| |
| public TType getErasure() { |
| return getEnvironment().getJavaLangObject(); |
| } |
| |
| protected boolean doCanAssignTo(TType lhs) { |
| switch(lhs.getKind()) { |
| case STANDARD_TYPE: |
| return ((StandardType)lhs).isJavaLangObject(); |
| case UNBOUND_WILDCARD_TYPE: |
| return true; |
| case SUPER_WILDCARD_TYPE: |
| case EXTENDS_WILDCARD_TYPE: |
| return ((WildcardType)lhs).getBound().isJavaLangObject(); |
| case CAPTURE_TYPE: |
| return ((CaptureType)lhs).checkLowerBound(this); |
| default: |
| return false; |
| } |
| } |
| |
| protected boolean checkTypeArgument(TType rhs) { |
| switch(rhs.getKind()) { |
| case ARRAY_TYPE: |
| case STANDARD_TYPE: |
| case PARAMETERIZED_TYPE: |
| case RAW_TYPE: |
| case UNBOUND_WILDCARD_TYPE: |
| case EXTENDS_WILDCARD_TYPE: |
| case SUPER_WILDCARD_TYPE: |
| case TYPE_VARIABLE: |
| case CAPTURE_TYPE: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| protected boolean checkAssignmentBound(TType rhs) { |
| // unbound equals ? extends Object. |
| return rhs.isNullType(); |
| } |
| |
| public String getName() { |
| return "?"; //$NON-NLS-1$ |
| } |
| |
| protected String getPlainPrettySignature() { |
| return getName(); |
| } |
| } |