| /* |
| * 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.spock; |
| |
| import com.intellij.openapi.util.Computable; |
| import com.intellij.openapi.util.RecursionManager; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiUtil; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.impl.statements.expressions.TypesUtil; |
| import org.jetbrains.plugins.groovy.lang.psi.impl.synthetic.GrLightVariable; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * @author Sergey Evdokimov |
| */ |
| public class SpockVariableDescriptor { |
| |
| private final String myName; |
| |
| private final PsiElement myNavigationElement; |
| |
| private final List<GrExpression> myExpressions; |
| private List<GrExpression> myExpressionsOfCollection; |
| |
| private PsiVariable myVariable; |
| |
| public SpockVariableDescriptor(PsiElement navigationElement, String name) { |
| myName = name; |
| myNavigationElement = navigationElement; |
| myExpressions = new ArrayList<GrExpression>(); |
| } |
| |
| public SpockVariableDescriptor addExpression(@Nullable GrExpression expression) { |
| myExpressions.add(expression); |
| return this; |
| } |
| |
| public SpockVariableDescriptor addExpressionOfCollection(@Nullable GrExpression expression) { |
| if (myExpressionsOfCollection == null) { |
| myExpressionsOfCollection = new ArrayList<GrExpression>(); |
| } |
| |
| myExpressionsOfCollection.add(expression); |
| return this; |
| } |
| |
| public String getName() { |
| return myName; |
| } |
| |
| public PsiElement getNavigationElement() { |
| return myNavigationElement; |
| } |
| |
| public PsiVariable getVariable() { |
| if (myVariable == null) { |
| final PsiManager manager = myNavigationElement.getManager(); |
| |
| PsiType type = RecursionManager.doPreventingRecursion(this, true, new Computable<PsiType>() { |
| @Override |
| public PsiType compute() { |
| PsiType res = null; |
| |
| for (GrExpression expression : myExpressions) { |
| if (expression == null) continue; |
| |
| res = TypesUtil.getLeastUpperBoundNullable(res, expression.getType(), manager); |
| } |
| |
| if (myExpressionsOfCollection != null) { |
| for (GrExpression expression : myExpressionsOfCollection) { |
| if (expression == null) continue; |
| |
| PsiType listType = expression.getType(); |
| PsiType type = PsiUtil.extractIterableTypeParameter(listType, true); |
| |
| if (type == null) { |
| if (listType == null) continue; |
| |
| if (listType.equalsToText(CommonClassNames.JAVA_LANG_STRING)) { |
| type = PsiType.getJavaLangString(expression.getManager(), expression.getResolveScope()); |
| } |
| } |
| |
| res = TypesUtil.getLeastUpperBoundNullable(res, type, manager); |
| } |
| } |
| |
| return res; |
| } |
| }); |
| |
| if (type == null) { |
| type = PsiType.getJavaLangObject(manager, myNavigationElement.getResolveScope()); |
| } |
| |
| myVariable = new SpockVariable(manager, myName, type, myNavigationElement); |
| } |
| |
| return myVariable; |
| } |
| |
| private static class SpockVariable extends GrLightVariable { |
| public SpockVariable(PsiManager manager, |
| @NonNls String name, |
| @NotNull PsiType type, |
| @NotNull PsiElement navigationElement) { |
| super(manager, name, type, navigationElement); |
| } |
| |
| |
| |
| @Override |
| public boolean isEquivalentTo(PsiElement another) { |
| return super.isEquivalentTo(another) |
| || (another instanceof SpockVariable && getNavigationElement() == another.getNavigationElement()); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return myName; |
| } |
| } |