git://git.uio.no / ifi-stolz-refaktor.git / blame
| Commit | Line | Data |
|---|---|---|
| 1b2798f6 EK |
1 | /******************************************************************************* |
| 2 | * Copyright (c) 2000, 2011 IBM Corporation and others. | |
| 3 | * All rights reserved. This program and the accompanying materials | |
| 4 | * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 | * which accompanies this distribution, and is available at | |
| 6 | * http://www.eclipse.org/legal/epl-v10.html | |
| 7 | * | |
| 8 | * Contributors: | |
| 9 | * IBM Corporation - initial API and implementation | |
| 10 | *******************************************************************************/ | |
| 11 | package org.eclipse.jdt.internal.corext.refactoring.typeconstraints.types; | |
| 12 | ||
| 13 | public final class UnboundWildcardType extends WildcardType { | |
| 14 | ||
| 15 | protected UnboundWildcardType(TypeEnvironment environment) { | |
| 16 | super(environment); | |
| 17 | } | |
| 18 | ||
| 19 | @Override | |
| 20 | public int getKind() { | |
| 21 | return UNBOUND_WILDCARD_TYPE; | |
| 22 | } | |
| 23 | ||
| 24 | @Override | |
| 25 | public TType getErasure() { | |
| 26 | return getEnvironment().getJavaLangObject(); | |
| 27 | } | |
| 28 | ||
| 29 | @Override | |
| 30 | protected boolean doCanAssignTo(TType lhs) { | |
| 31 | switch(lhs.getKind()) { | |
| 32 | case STANDARD_TYPE: | |
| 33 | return ((StandardType)lhs).isJavaLangObject(); | |
| 34 | case UNBOUND_WILDCARD_TYPE: | |
| 35 | return true; | |
| 36 | case SUPER_WILDCARD_TYPE: | |
| 37 | case EXTENDS_WILDCARD_TYPE: | |
| 38 | return ((WildcardType)lhs).getBound().isJavaLangObject(); | |
| 39 | case CAPTURE_TYPE: | |
| 40 | return ((CaptureType)lhs).checkLowerBound(this); | |
| 41 | default: | |
| 42 | return false; | |
| 43 | } | |
| 44 | } | |
| 45 | ||
| 46 | @Override | |
| 47 | protected boolean checkTypeArgument(TType rhs) { | |
| 48 | switch(rhs.getKind()) { | |
| 49 | case ARRAY_TYPE: | |
| 50 | case STANDARD_TYPE: | |
| 51 | case PARAMETERIZED_TYPE: | |
| 52 | case RAW_TYPE: | |
| 53 | case UNBOUND_WILDCARD_TYPE: | |
| 54 | case EXTENDS_WILDCARD_TYPE: | |
| 55 | case SUPER_WILDCARD_TYPE: | |
| 56 | case TYPE_VARIABLE: | |
| 57 | case CAPTURE_TYPE: | |
| 58 | return true; | |
| 59 | default: | |
| 60 | return false; | |
| 61 | } | |
| 62 | } | |
| 63 | ||
| 64 | @Override | |
| 65 | protected boolean checkAssignmentBound(TType rhs) { | |
| 66 | // unbound equals ? extends Object. | |
| 67 | return rhs.isNullType(); | |
| 68 | } | |
| 69 | ||
| 70 | @Override | |
| 71 | public String getName() { | |
| 72 | return "?"; //$NON-NLS-1$ | |
| 73 | } | |
| 74 | ||
| 75 | @Override | |
| 76 | protected String getPlainPrettySignature() { | |
| 77 | return getName(); | |
| 78 | } | |
| 79 | } |