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 | import org.eclipse.core.runtime.Assert; | |
| 14 | ||
| 15 | import org.eclipse.jdt.core.IJavaProject; | |
| 16 | import org.eclipse.jdt.core.dom.ITypeBinding; | |
| 17 | ||
| 18 | ||
| 19 | ||
| 20 | public final class CaptureType extends AbstractTypeVariable { | |
| 21 | ||
| 22 | private WildcardType fWildcard; | |
| 23 | IJavaProject fJavaProject; | |
| 24 | ||
| 25 | protected CaptureType(TypeEnvironment environment) { | |
| 26 | super(environment); | |
| 27 | } | |
| 28 | ||
| 29 | protected void initialize(ITypeBinding binding, IJavaProject javaProject) { | |
| 30 | Assert.isTrue(binding.isCapture()); | |
| 31 | super.initialize(binding); | |
| 32 | fWildcard= (WildcardType) getEnvironment().create(binding.getWildcard()); | |
| 33 | fJavaProject= javaProject; | |
| 34 | } | |
| 35 | ||
| 36 | @Override | |
| 37 | public int getKind() { | |
| 38 | return CAPTURE_TYPE; | |
| 39 | } | |
| 40 | ||
| 41 | public WildcardType getWildcard() { | |
| 42 | return fWildcard; | |
| 43 | } | |
| 44 | ||
| 45 | @Override | |
| 46 | public boolean doEquals(TType type) { | |
| 47 | return type.generated_4797472232774948677(this); | |
| 48 | } | |
| 49 | ||
| 50 | @Override | |
| 51 | public int hashCode() { | |
| 52 | return getBindingKey().hashCode(); | |
| 53 | } | |
| 54 | ||
| 55 | @Override | |
| 56 | protected boolean doCanAssignTo(TType lhs) { | |
| 57 | switch (lhs.getKind()) { | |
| 58 | case NULL_TYPE: | |
| 59 | case VOID_TYPE: | |
| 60 | case PRIMITIVE_TYPE: | |
| 61 | return false; | |
| 62 | ||
| 63 | case ARRAY_TYPE: | |
| 64 | return canAssignFirstBoundTo(lhs); | |
| 65 | ||
| 66 | case GENERIC_TYPE: | |
| 67 | return false; | |
| 68 | ||
| 69 | case STANDARD_TYPE: | |
| 70 | case PARAMETERIZED_TYPE: | |
| 71 | case RAW_TYPE: | |
| 72 | return canAssignOneBoundTo(lhs); | |
| 73 | ||
| 74 | case UNBOUND_WILDCARD_TYPE: | |
| 75 | case EXTENDS_WILDCARD_TYPE: | |
| 76 | case SUPER_WILDCARD_TYPE: | |
| 77 | return ((WildcardType)lhs).checkAssignmentBound(this); | |
| 78 | ||
| 79 | case TYPE_VARIABLE: | |
| 80 | return false; //fWildcard.doCanAssignTo(lhs); | |
| 81 | ||
| 82 | case CAPTURE_TYPE: | |
| 83 | return ((CaptureType)lhs).checkLowerBound(this.getWildcard()); | |
| 84 | ||
| 85 | } | |
| 86 | return false; | |
| 87 | } | |
| 88 | ||
| 89 | protected boolean checkLowerBound(TType rhs) { | |
| 90 | if (! getWildcard().isSuperWildcardType()) | |
| 91 | return false; | |
| 92 | ||
| 93 | return rhs.canAssignTo(getWildcard().getBound()); | |
| 94 | } | |
| 95 | ||
| 96 | private boolean canAssignFirstBoundTo(TType lhs) { | |
| 97 | if (fBounds.length > 0 && fBounds[0].isArrayType()) { | |
| 98 | // capture of ? extends X[] | |
| 99 | return fBounds[0].canAssignTo(lhs); | |
| 100 | } | |
| 101 | return false; | |
| 102 | } | |
| 103 | ||
| 104 | @Override | |
| 105 | public String getName() { | |
| 106 | return ""; //$NON-NLS-1$ | |
| 107 | } | |
| 108 | ||
| 109 | @Override | |
| 110 | protected String getPlainPrettySignature() { | |
| 111 | return "capture-of " + fWildcard.getPrettySignature(); //$NON-NLS-1$ | |
| 112 | } | |
| 113 | } |