| /* |
| * 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.extensions; |
| |
| import com.intellij.openapi.extensions.ExtensionPointName; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.InheritanceUtil; |
| 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.api.statements.GrVariable; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrCall; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.params.GrParameter; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrAccessorMethod; |
| import org.jetbrains.plugins.groovy.lang.psi.impl.GroovyPsiManager; |
| import org.jetbrains.plugins.groovy.lang.psi.util.GroovyCommonClassNames; |
| import org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * @author Sergey Evdokimov |
| */ |
| public abstract class GroovyNamedArgumentProvider { |
| |
| public static final ExtensionPointName<GroovyNamedArgumentProvider> EP_NAME = |
| ExtensionPointName.create("org.intellij.groovy.namedArgumentProvider"); |
| |
| public void getNamedArguments(@NotNull GrCall call, |
| @Nullable PsiElement resolve, |
| @Nullable String argumentName, |
| boolean forCompletion, |
| Map<String, NamedArgumentDescriptor> result) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public void getNamedArguments(@NotNull GrCall call, |
| @Nullable PsiElement resolve, |
| @Nullable GroovyResolveResult resolveResult, |
| @Nullable String argumentName, |
| boolean forCompletion, |
| Map<String, NamedArgumentDescriptor> result) { |
| getNamedArguments(call, resolve, argumentName, forCompletion, result); |
| } |
| |
| @Nullable |
| public static Map<String, NamedArgumentDescriptor> getNamedArgumentsFromAllProviders(@NotNull GrCall call, |
| @Nullable String argumentName, |
| boolean forCompletion) { |
| Map<String, NamedArgumentDescriptor> namedArguments = new HashMap<String, NamedArgumentDescriptor>() { |
| @Override |
| public NamedArgumentDescriptor put(String key, NamedArgumentDescriptor value) { |
| NamedArgumentDescriptor oldValue = super.put(key, value); |
| if (oldValue != null) { |
| super.put(key, oldValue); |
| } |
| |
| //noinspection ConstantConditions |
| return oldValue; |
| } |
| }; |
| |
| GroovyResolveResult[] callVariants = call.getCallVariants(null); |
| |
| if (callVariants.length == 0 || PsiUtil.isSingleBindingVariant(callVariants)) { |
| for (GroovyNamedArgumentProvider namedArgumentProvider : EP_NAME.getExtensions()) { |
| namedArgumentProvider.getNamedArguments(call, null, null, argumentName, forCompletion, namedArguments); |
| } |
| } |
| else { |
| boolean mapExpected = false; |
| for (GroovyResolveResult result : callVariants) { |
| PsiElement element = result.getElement(); |
| if (element instanceof GrAccessorMethod) continue; |
| |
| if (element instanceof PsiMethod) { |
| PsiMethod method = (PsiMethod)element; |
| PsiParameter[] parameters = method.getParameterList().getParameters(); |
| |
| if (!method.isConstructor() && !(parameters.length > 0 && canBeMap(parameters[0]))) continue; |
| |
| mapExpected = true; |
| |
| for (GroovyMethodInfo methodInfo : GroovyMethodInfo.getInfos(method)) { |
| if (methodInfo.getNamedArguments() != null || methodInfo.isNamedArgumentProviderDefined()) { |
| if (methodInfo.isApplicable(method)) { |
| if (methodInfo.isNamedArgumentProviderDefined()) { |
| methodInfo.getNamedArgProvider().getNamedArguments(call, element, result, argumentName, forCompletion, namedArguments); |
| } |
| if (methodInfo.getNamedArguments() != null) { |
| namedArguments.putAll(methodInfo.getNamedArguments()); |
| } |
| } |
| } |
| } |
| } |
| |
| for (GroovyNamedArgumentProvider namedArgumentProvider : EP_NAME.getExtensions()) { |
| namedArgumentProvider.getNamedArguments(call, element, result, argumentName, forCompletion, namedArguments); |
| } |
| |
| if (element instanceof GrVariable && |
| InheritanceUtil.isInheritor(((GrVariable)element).getTypeGroovy(), GroovyCommonClassNames.GROOVY_LANG_CLOSURE)) { |
| mapExpected = true; |
| } |
| } |
| if (!mapExpected && namedArguments.isEmpty()) { |
| return null; |
| } |
| } |
| |
| return namedArguments; |
| } |
| |
| private static boolean canBeMap(PsiParameter parameter) { |
| PsiType type = parameter.getType(); |
| if (parameter instanceof GrParameter && |
| type.equalsToText(CommonClassNames.JAVA_LANG_OBJECT) && |
| ((GrParameter)parameter).getTypeElementGroovy() == null) { |
| return true; |
| } |
| return GroovyPsiManager.isInheritorCached(type, CommonClassNames.JAVA_UTIL_MAP); |
| } |
| } |