| /* |
| * 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.controlFlow; |
| |
| import com.intellij.openapi.util.Pair; |
| import com.intellij.psi.*; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.codeInspection.utils.ControlFlowUtils; |
| import org.jetbrains.plugins.groovy.lang.psi.api.GroovyResolveResult; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrBinaryExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrInstanceOfExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.types.GrTypeElement; |
| import org.jetbrains.plugins.groovy.lang.psi.controlFlow.impl.ConditionInstruction; |
| import org.jetbrains.plugins.groovy.lang.psi.controlFlow.impl.InstructionImpl; |
| |
| /** |
| * @author peter |
| */ |
| public class InstanceOfInstruction extends InstructionImpl implements MixinTypeInstruction { |
| private final ConditionInstruction myCondition; |
| |
| public InstanceOfInstruction(GrExpression assertion, ConditionInstruction cond) { |
| super(assertion); |
| myCondition = cond; |
| } |
| |
| @Override |
| protected String getElementPresentation() { |
| return "instanceof: " + getElement().getText(); |
| } |
| |
| @Nullable |
| private Pair<GrExpression, PsiType> getInstanceof() { |
| final PsiElement element = getElement(); |
| if (element instanceof GrInstanceOfExpression) { |
| GrExpression operand = ((GrInstanceOfExpression)element).getOperand(); |
| final GrTypeElement typeElement = ((GrInstanceOfExpression)element).getTypeElement(); |
| if (operand instanceof GrReferenceExpression && ((GrReferenceExpression)operand).getQualifier() == null && typeElement != null) { |
| return Pair.create(((GrInstanceOfExpression)element).getOperand(), typeElement.getType()); |
| } |
| } |
| else if (element instanceof GrBinaryExpression && ControlFlowBuilderUtil.isInstanceOfBinary((GrBinaryExpression)element)) { |
| GrExpression left = ((GrBinaryExpression)element).getLeftOperand(); |
| GrExpression right = ((GrBinaryExpression)element).getRightOperand(); |
| GroovyResolveResult result = ((GrReferenceExpression)right).advancedResolve(); |
| final PsiElement resolved = result.getElement(); |
| if (resolved instanceof PsiClass) { |
| PsiClassType type = JavaPsiFacade.getElementFactory(element.getProject()).createType((PsiClass)resolved, result.getSubstitutor()); |
| return new Pair<GrExpression, PsiType>(left, type); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| @Nullable |
| public PsiType inferMixinType() { |
| Pair<GrExpression, PsiType> instanceOf = getInstanceof(); |
| if (instanceOf == null) return null; |
| |
| return instanceOf.getSecond(); |
| } |
| |
| @Override |
| public ReadWriteVariableInstruction getInstructionToMixin(Instruction[] flow) { |
| Pair<GrExpression, PsiType> instanceOf = getInstanceof(); |
| if (instanceOf == null) return null; |
| |
| Instruction instruction = ControlFlowUtils.findInstruction(instanceOf.getFirst(), flow); |
| if (instruction instanceof ReadWriteVariableInstruction) { |
| return (ReadWriteVariableInstruction)instruction; |
| } |
| return null; |
| } |
| |
| @Nullable |
| @Override |
| public String getVariableName() { |
| Pair<GrExpression, PsiType> instanceOf = getInstanceof(); |
| if (instanceOf == null) return null; |
| |
| return instanceOf.getFirst().getText(); |
| } |
| |
| @Override |
| public ConditionInstruction getConditionInstruction() { |
| return myCondition; |
| } |
| } |