| /* |
| * Copyright 2003-2012 Dave Griffith, Bas Leijdekkers |
| * |
| * 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 com.siyeh.ig.performance; |
| |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.psiutils.ExpectedTypeUtils; |
| import com.siyeh.ig.psiutils.TypeUtils; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class MapReplaceableByEnumMapInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message("map.replaceable.by.enum.map.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message("map.replaceable.by.enum.map.problem.descriptor"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new SetReplaceableByEnumSetVisitor(); |
| } |
| |
| private static class SetReplaceableByEnumSetVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitNewExpression(@NotNull PsiNewExpression expression) { |
| super.visitNewExpression(expression); |
| final PsiType type = expression.getType(); |
| if (!(type instanceof PsiClassType)) { |
| return; |
| } |
| PsiClassType classType = (PsiClassType)type; |
| if (!classType.hasParameters()) { |
| final PsiType expectedType = ExpectedTypeUtils.findExpectedType(expression, false); |
| if (!(expectedType instanceof PsiClassType)) { |
| return; |
| } |
| classType = (PsiClassType)expectedType; |
| } |
| final PsiType[] typeArguments = classType.getParameters(); |
| if (typeArguments.length != 2) { |
| return; |
| } |
| final PsiType argumentType = typeArguments[0]; |
| if (!(argumentType instanceof PsiClassType)) { |
| return; |
| } |
| if (!TypeUtils.expressionHasTypeOrSubtype(expression, CommonClassNames.JAVA_UTIL_MAP)) { |
| return; |
| } |
| if (null != TypeUtils.expressionHasTypeOrSubtype(expression, "java.util.EnumMap", "java.util.concurrent.ConcurrentMap")) { |
| return; |
| } |
| final PsiClassType argumentClassType = (PsiClassType)argumentType; |
| final PsiClass argumentClass = argumentClassType.resolve(); |
| if (argumentClass == null || !argumentClass.isEnum()) { |
| return; |
| } |
| final PsiClass aClass = PsiTreeUtil.getParentOfType(expression, PsiClass.class); |
| if (argumentClass.equals(aClass)) { |
| final PsiMember member = PsiTreeUtil.getParentOfType(expression, PsiMember.class); |
| if (member != null && !member.hasModifierProperty(PsiModifier.STATIC)) { |
| return; |
| } |
| } |
| final PsiExpressionList argumentList = expression.getArgumentList(); |
| if (argumentList != null) { |
| final PsiExpression[] arguments = argumentList.getExpressions(); |
| if (arguments.length > 0 && TypeUtils.expressionHasTypeOrSubtype(arguments[0], "java.util.Comparator")) { |
| return; |
| } |
| } |
| registerNewExpressionError(expression); |
| } |
| } |
| } |