| /* |
| * Copyright 2000-2011 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.refactoring.typeMigration.rules; |
| |
| import com.intellij.psi.*; |
| import com.intellij.refactoring.typeMigration.TypeConversionDescriptorBase; |
| import com.intellij.refactoring.typeMigration.TypeMigrationLabeler; |
| |
| public class DisjunctionTypeConversionRule extends TypeConversionRule { |
| @Override |
| public TypeConversionDescriptorBase findConversion(final PsiType from, |
| final PsiType to, |
| final PsiMember member, |
| final PsiExpression context, |
| final TypeMigrationLabeler labeler) { |
| if (from instanceof PsiDisjunctionType) { |
| final PsiType lub = ((PsiDisjunctionType)from).getLeastUpperBound(); |
| if (lub instanceof PsiIntersectionType) { |
| for (PsiType type : ((PsiIntersectionType)lub).getConjuncts()) { |
| final TypeConversionDescriptorBase conversion = labeler.getRules().findConversion(type, to, member, context, labeler); |
| if (conversion != null) return conversion; |
| } |
| } |
| else { |
| final TypeConversionDescriptorBase conversion = labeler.getRules().findConversion(lub, to, member, context, labeler); |
| if (conversion != null) return conversion; |
| } |
| } |
| |
| if (to instanceof PsiDisjunctionType) { |
| final PsiType lub = ((PsiDisjunctionType)to).getLeastUpperBound(); |
| if (lub instanceof PsiIntersectionType) { |
| for (PsiType type : ((PsiIntersectionType)lub).getConjuncts()) { |
| final TypeConversionDescriptorBase conversion = labeler.getRules().findConversion(from, type, member, context, labeler); |
| if (conversion != null) return conversion; |
| } |
| } |
| else { |
| final TypeConversionDescriptorBase conversion = labeler.getRules().findConversion(from, lub, member, context, labeler); |
| if (conversion != null) return conversion; |
| } |
| } |
| |
| return null; |
| } |
| } |