| /* |
| * 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; |
| |
| import com.intellij.openapi.util.Comparing; |
| import com.intellij.pom.java.LanguageLevel; |
| import com.intellij.psi.*; |
| import com.intellij.psi.search.GlobalSearchScope; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElement; |
| import org.jetbrains.plugins.groovy.lang.psi.api.GroovyResolveResult; |
| import org.jetbrains.plugins.groovy.lang.psi.api.signatures.GrClosureSignature; |
| import org.jetbrains.plugins.groovy.lang.psi.api.signatures.GrSignature; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.blocks.GrClosableBlock; |
| import org.jetbrains.plugins.groovy.lang.psi.impl.signatures.GrClosureSignatureUtil; |
| import org.jetbrains.plugins.groovy.lang.psi.impl.statements.expressions.TypesUtil; |
| import org.jetbrains.plugins.groovy.lang.psi.util.GroovyCommonClassNames; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * @author ven |
| */ |
| public class GrClosureType extends GrLiteralClassType { |
| private final GrSignature mySignature; |
| private volatile PsiType[] myTypeArgs = null; |
| |
| private GrClosureType(LanguageLevel languageLevel, |
| @NotNull GlobalSearchScope scope, |
| @NotNull JavaPsiFacade facade, |
| @NotNull GrSignature closureSignature, |
| boolean shouldInferTypeParameters) { |
| super(languageLevel, scope, facade); |
| mySignature = closureSignature; |
| if (!shouldInferTypeParameters) myTypeArgs = PsiType.EMPTY_ARRAY; |
| } |
| |
| private GrClosureType(LanguageLevel level, |
| @NotNull GlobalSearchScope scope, |
| @NotNull JavaPsiFacade facade, |
| @NotNull GrSignature signature, |
| @Nullable PsiType[] typeArgs) { |
| super(level, scope, facade); |
| |
| mySignature = signature; |
| myTypeArgs = typeArgs; |
| } |
| |
| @Override |
| @NotNull |
| public String getClassName() { |
| return "Closure"; |
| } |
| |
| @Override |
| @NotNull |
| public PsiType[] getParameters() { |
| if (myTypeArgs == null) { |
| myTypeArgs = inferParameters(); |
| } |
| return myTypeArgs; |
| } |
| |
| @NotNull |
| private PsiType[] inferParameters() { |
| final PsiClass psiClass = resolve(); |
| if (psiClass != null && psiClass.getTypeParameters().length == 1) { |
| final PsiType type = GrClosureSignatureUtil.getReturnType(mySignature); |
| if (type == PsiType.NULL || type == null) { |
| return new PsiType[]{null}; |
| } |
| else { |
| return new PsiType[]{TypesUtil.boxPrimitiveType(type, getPsiManager(), getResolveScope(), true)}; |
| } |
| } |
| else { |
| return PsiType.EMPTY_ARRAY; |
| } |
| } |
| |
| @NotNull |
| @Override |
| protected String getJavaClassName() { |
| return GroovyCommonClassNames.GROOVY_LANG_CLOSURE; |
| } |
| |
| @Override |
| @NotNull |
| public PsiClassType rawType() { |
| if (myTypeArgs != null && myTypeArgs.length == 0) { |
| return this; |
| } |
| |
| return new GrClosureType(getLanguageLevel(), getResolveScope(), myFacade, mySignature, false); |
| } |
| |
| @Override |
| @NotNull |
| public String getInternalCanonicalText() { |
| return getCanonicalText(); |
| } |
| |
| @Override |
| public boolean isValid() { |
| return mySignature.isValid(); |
| } |
| |
| public boolean equals(Object obj) { |
| if (obj instanceof GrClosureType) { |
| return Comparing.equal(mySignature, ((GrClosureType)obj).mySignature); |
| } |
| |
| return super.equals(obj); |
| } |
| |
| @Override |
| @NotNull |
| public PsiClassType setLanguageLevel(@NotNull final LanguageLevel languageLevel) { |
| return new GrClosureType(languageLevel, myScope, myFacade, mySignature, myTypeArgs); |
| } |
| |
| public static GrClosureType create(GroovyResolveResult[] results, GroovyPsiElement context) { |
| List<GrClosureSignature> signatures = new ArrayList<GrClosureSignature>(); |
| for (GroovyResolveResult result : results) { |
| if (result.getElement() instanceof PsiMethod) { |
| signatures.add(GrClosureSignatureUtil.createSignature((PsiMethod)result.getElement(), result.getSubstitutor())); |
| } |
| } |
| |
| final GlobalSearchScope resolveScope = context.getResolveScope(); |
| final JavaPsiFacade facade = JavaPsiFacade.getInstance(context.getProject()); |
| if (signatures.size() == 1) { |
| return create(signatures.get(0), resolveScope, facade, LanguageLevel.JDK_1_5, true); |
| } |
| else { |
| return create(GrClosureSignatureUtil.createMultiSignature(signatures.toArray(new GrClosureSignature[signatures.size()])), |
| resolveScope, facade, LanguageLevel.JDK_1_5, true); |
| } |
| } |
| |
| public static GrClosureType create(@NotNull GrClosableBlock closure, boolean shouldInferTypeParameters) { |
| final GrClosureSignature signature = GrClosureSignatureUtil.createSignature(closure); |
| final GlobalSearchScope resolveScope = closure.getResolveScope(); |
| final JavaPsiFacade facade = JavaPsiFacade.getInstance(closure.getProject()); |
| return create(signature, resolveScope, facade,LanguageLevel.JDK_1_5, shouldInferTypeParameters); |
| } |
| |
| public static GrClosureType create(@NotNull PsiMethod method, @NotNull PsiSubstitutor substitutor) { |
| final GrClosureSignature signature = GrClosureSignatureUtil.createSignature(method, substitutor); |
| final GlobalSearchScope scope = GlobalSearchScope.allScope(method.getProject()); |
| final JavaPsiFacade facade = JavaPsiFacade.getInstance(method.getProject()); |
| return create(signature, scope, facade, LanguageLevel.JDK_1_5, true); |
| } |
| |
| public static GrClosureType create(@NotNull PsiParameter[] parameters, |
| @Nullable PsiType returnType, |
| JavaPsiFacade facade, |
| GlobalSearchScope scope, |
| LanguageLevel languageLevel) { |
| return create(GrClosureSignatureUtil.createSignature(parameters, returnType), scope, facade, languageLevel, true); |
| } |
| |
| public static GrClosureType create(@NotNull GrSignature signature, |
| GlobalSearchScope scope, |
| JavaPsiFacade facade, |
| LanguageLevel languageLevel, |
| boolean shouldInferTypeParameters) { |
| return new GrClosureType(languageLevel, scope, facade, signature, shouldInferTypeParameters); |
| } |
| |
| @Nullable |
| public PsiType curry(@NotNull PsiType[] args, int position, @NotNull GroovyPsiElement context) { |
| final GrSignature newSignature = mySignature.curry(args, position, context); |
| if (newSignature == null) return null; |
| return new GrClosureType(myLanguageLevel, myScope, myFacade, newSignature, myTypeArgs); |
| } |
| |
| @NotNull |
| public GrSignature getSignature() { |
| return mySignature; |
| } |
| } |