| /* |
| * Copyright 2000-2014 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 org.jetbrains.plugins.groovy.lang.psi.impl.statements.expressions.binaryCalculators; |
| |
| import com.intellij.psi.PsiType; |
| import com.intellij.util.NullableFunction; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.lang.psi.api.GroovyResolveResult; |
| import org.jetbrains.plugins.groovy.lang.psi.impl.PsiImplUtil; |
| import org.jetbrains.plugins.groovy.lang.psi.impl.statements.expressions.TypesUtil; |
| import org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil; |
| import org.jetbrains.plugins.groovy.lang.resolve.ResolveUtil; |
| |
| /** |
| * Created by Max Medvedev on 12/20/13 |
| */ |
| public class GrNumericBinaryExpressionTypeCalculator implements NullableFunction<GrBinaryFacade, PsiType> { |
| public static final GrNumericBinaryExpressionTypeCalculator INSTANCE = new GrNumericBinaryExpressionTypeCalculator(); |
| |
| @Nullable |
| @Override |
| public PsiType fun(GrBinaryFacade e) { |
| |
| final GroovyResolveResult resolveResult = PsiImplUtil.extractUniqueResult(e.multiResolve(false)); |
| if (resolveResult.isApplicable() && !PsiUtil.isDGMMethod(resolveResult.getElement())) { |
| return ResolveUtil.extractReturnTypeFromCandidate(resolveResult, e.getPsiElement(), new PsiType[]{GrBinaryExpressionUtil.getRightType(e)}); |
| } |
| |
| PsiType lType = GrBinaryExpressionUtil.getLeftType(e); |
| PsiType rType = GrBinaryExpressionUtil.getRightType(e); |
| if (TypesUtil.isNumericType(lType) && TypesUtil.isNumericType(rType)) { |
| assert lType != null; |
| assert rType != null; |
| return inferNumericType(lType, rType, e); |
| } |
| |
| return ResolveUtil.extractReturnTypeFromCandidate(resolveResult, e.getPsiElement(), new PsiType[]{rType}); |
| } |
| |
| @Nullable |
| protected PsiType inferNumericType(@NotNull PsiType ltype, @NotNull PsiType rtype, GrBinaryFacade e) { |
| return GrBinaryExpressionUtil.getDefaultNumericResultType(ltype, rtype, e); |
| } |
| } |