| /* |
| * Copyright 2003-2010 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.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.psiutils.TypeUtils; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class SetReplaceableByEnumSetInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "set.replaceable.by.enum.set.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "set.replaceable.by.enum.set.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; |
| } |
| final PsiClassType classType = (PsiClassType)type; |
| if (!classType.hasParameters()) { |
| return; |
| } |
| final PsiType[] typeArguments = classType.getParameters(); |
| if (typeArguments.length != 1) { |
| return; |
| } |
| final PsiType argumentType = typeArguments[0]; |
| if (!(argumentType instanceof PsiClassType)) { |
| return; |
| } |
| if (!TypeUtils.expressionHasTypeOrSubtype(expression, |
| CommonClassNames.JAVA_UTIL_SET)) { |
| return; |
| } |
| if (TypeUtils.expressionHasTypeOrSubtype(expression, |
| "java.util.EnumSet")) { |
| return; |
| } |
| final PsiClassType argumentClassType = (PsiClassType)argumentType; |
| final PsiClass argumentClass = argumentClassType.resolve(); |
| if (argumentClass == null) { |
| return; |
| } |
| if (!argumentClass.isEnum()) { |
| return; |
| } |
| registerNewExpressionError(expression); |
| } |
| } |
| } |