| /* |
| * Copyright 2000-2013 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.codeInspection.dataFlow.value; |
| |
| import com.intellij.openapi.util.Pair; |
| import com.intellij.psi.PsiType; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.Map; |
| |
| /** |
| * @author peter |
| */ |
| public class DfaPsiType { |
| private final PsiType myPsiType; |
| private final Map<Pair<DfaPsiType, DfaPsiType>, Boolean> myAssignableCache; |
| private final Map<Pair<DfaPsiType, DfaPsiType>, Boolean> myConvertibleCache; |
| |
| DfaPsiType(@NotNull PsiType psiType, Map<Pair<DfaPsiType, DfaPsiType>, Boolean> assignableCache, Map<Pair<DfaPsiType, DfaPsiType>, Boolean> convertibleCache) { |
| myPsiType = psiType; |
| myAssignableCache = assignableCache; |
| myConvertibleCache = convertibleCache; |
| } |
| |
| @NotNull |
| public PsiType getPsiType() { |
| return myPsiType; |
| } |
| |
| public boolean isAssignableFrom(DfaPsiType other) { |
| if (other == this) return true; |
| Pair<DfaPsiType, DfaPsiType> key = Pair.create(this, other); |
| Boolean result = myAssignableCache.get(key); |
| if (result == null) { |
| myAssignableCache.put(key, result = myPsiType.isAssignableFrom(other.myPsiType)); |
| } |
| return result; |
| } |
| |
| public boolean isConvertibleFrom(DfaPsiType other) { |
| if (other == this) return true; |
| Pair<DfaPsiType, DfaPsiType> key = Pair.create(this, other); |
| Boolean result = myConvertibleCache.get(key); |
| if (result == null) { |
| myConvertibleCache.put(key, result = myPsiType.isConvertibleFrom(other.myPsiType)); |
| } |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| return myPsiType.getPresentableText(); |
| } |
| } |