org.jetbrains.plugins.groovy.lang.psi.impl.utils.DuplicatesUtil Maven / Gradle / Ivy
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A packaging of the IntelliJ Community Edition groovy-psi library.
This is release number 1 of trunk branch 142.
The newest version!
/*
* 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.utils;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiType;
import gnu.trove.THashMap;
import gnu.trove.TObjectHashingStrategy;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod;
import org.jetbrains.plugins.groovy.lang.psi.api.types.GrTypeElement;
import java.util.*;
/**
* @author ilyas
*/
public class DuplicatesUtil {
public static void collectMethodDuplicates(Map> map, HashSet duplicateMethodsWarning, HashSet duplicateMethodsErrors) {
for (GrMethod method : map.keySet()) {
List duplicateMethods = map.get(method);
if (duplicateMethods != null && duplicateMethods.size() > 1) {
HashMap duplicateMethodsToReturnTypeMap = new HashMap();
for (GrMethod duplicateMethod : duplicateMethods) {
GrTypeElement typeElement = duplicateMethod.getReturnTypeElementGroovy();
PsiType methodReturnType;
if (typeElement != null) {
methodReturnType = typeElement.getType();
} else {
methodReturnType = PsiType.NULL;
}
duplicateMethodsWarning.add(duplicateMethod);
GrMethod grMethodWithType = duplicateMethodsToReturnTypeMap.get(methodReturnType);
if (grMethodWithType != null) {
duplicateMethodsErrors.add(duplicateMethod);
duplicateMethodsErrors.add(grMethodWithType);
duplicateMethodsWarning.remove(duplicateMethod);
duplicateMethodsWarning.remove(grMethodWithType);
}
duplicateMethodsToReturnTypeMap.put(methodReturnType, duplicateMethod);
}
}
}
}
public static Map> factorDuplicates(D[] elements, TObjectHashingStrategy strategy) {
if (elements == null || elements.length == 0) return Collections.emptyMap();
THashMap> map = new THashMap>(strategy);
for (D element : elements) {
List list = map.get(element);
if (list == null) {
list = new ArrayList();
}
list.add(element);
map.put(element, list);
}
return map;
}
}