| /* |
| * 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.typeEnhancers; |
| |
| import com.intellij.openapi.util.Couple; |
| import com.intellij.openapi.util.text.StringUtilRt; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.InheritanceUtil; |
| import com.intellij.psi.util.PsiUtil; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.List; |
| |
| /** |
| * Created by Max Medvedev on 28/02/14 |
| */ |
| public class MapEntryOrKeyValueHintProcessor extends SignatureHintProcessor { |
| @Override |
| public String getHintName() { |
| return "groovy.transform.stc.MapEntryOrKeyValue"; |
| } |
| |
| @NotNull |
| @Override |
| public List<PsiType[]> inferExpectedSignatures(@NotNull PsiMethod method, |
| @NotNull PsiSubstitutor substitutor, |
| @NotNull String[] options) { |
| int argNum = extractArgNum(options); |
| boolean index = extractIndex(options); |
| |
| PsiParameter[] parameters = method.getParameterList().getParameters(); |
| |
| if (argNum >= parameters.length) return ContainerUtil.emptyList(); |
| |
| PsiParameter parameter = parameters[argNum]; |
| PsiType type = parameter.getType(); |
| PsiType substituted = substitutor.substitute(type); |
| |
| if (!InheritanceUtil.isInheritor(substituted, CommonClassNames.JAVA_UTIL_MAP)) return ContainerUtil.emptyList(); |
| |
| PsiType key = PsiUtil.substituteTypeParameter(substituted, CommonClassNames.JAVA_UTIL_MAP, 0, true); |
| PsiType value = PsiUtil.substituteTypeParameter(substituted, CommonClassNames.JAVA_UTIL_MAP, 1, true); |
| |
| PsiClass mapEntry = JavaPsiFacade.getInstance(method.getProject()).findClass(CommonClassNames.JAVA_UTIL_MAP_ENTRY, method.getResolveScope()); |
| if (mapEntry == null) return ContainerUtil.emptyList(); |
| |
| PsiClassType mapEntryType = JavaPsiFacade.getElementFactory(method.getProject()).createType(mapEntry, key, value); |
| |
| PsiType[] keyValueSignature = index ? new PsiType[]{key, value, PsiType.INT} : new PsiType[]{key, value}; |
| PsiType[] mapEntrySignature = index ? new PsiType[]{mapEntryType, PsiType.INT} : new PsiType[]{mapEntryType}; |
| |
| return ContainerUtil.newArrayList(keyValueSignature, mapEntrySignature); |
| } |
| |
| private static int extractArgNum(String[] options) { |
| |
| |
| for (String value : options) { |
| Integer parsedValue = parseArgNum(value); |
| if (parsedValue != null) { |
| return parsedValue; |
| } |
| } |
| |
| if (options.length == 1) { |
| return StringUtilRt.parseInt(options[0], 0); |
| } |
| |
| return 0; |
| } |
| |
| private static boolean extractIndex(String[] options) { |
| for (String value : options) { |
| Boolean parsedValue = parseIndex(value); |
| if (parsedValue != null) { |
| return parsedValue; |
| } |
| } |
| |
| if (options.length == 1) { |
| return StringUtilRt.parseBoolean(options[0], false); |
| } |
| |
| return false; |
| } |
| |
| private static Boolean parseIndex(String value) { |
| Couple<String> pair = parseValue(value); |
| if (pair == null) return null; |
| |
| Boolean parsedValue = StringUtilRt.parseBoolean(pair.getSecond(), false); |
| if ("index".equals(pair.getFirst())) { |
| return parsedValue; |
| } |
| |
| return null; |
| } |
| |
| private static Integer parseArgNum(String value) { |
| Couple<String> pair = parseValue(value); |
| if (pair == null) return null; |
| |
| Integer parsedValue = StringUtilRt.parseInt(pair.getSecond(), 0); |
| if ("argNum".equals(pair.getFirst())) { |
| return parsedValue; |
| } |
| |
| return null; |
| } |
| |
| @Nullable |
| private static Couple<String> parseValue(String value) { |
| String[] splitted = value.split("="); |
| |
| if (splitted.length == 2) { |
| return Couple.of(splitted[0].trim(), splitted[1].trim()); |
| } |
| |
| return null; |
| } |
| } |