| /* |
| * Copyright 2000-2012 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 com.intellij.codeInspection.duplicateThrows; |
| |
| import com.intellij.codeInsight.daemon.GroupNames; |
| import com.intellij.codeInspection.*; |
| import com.intellij.codeInspection.ui.SingleCheckboxOptionsPanel; |
| import com.intellij.psi.*; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.*; |
| |
| public class DuplicateThrowsInspection extends BaseJavaBatchLocalInspectionTool implements CleanupLocalInspectionTool { |
| @SuppressWarnings("PublicField") |
| public boolean ignoreSubclassing = false; |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionsBundle.message("inspection.duplicate.throws.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| public String getGroupDisplayName() { |
| return GroupNames.DECLARATION_REDUNDANCY; |
| } |
| |
| @Override |
| @NotNull |
| public String getShortName() { |
| return "DuplicateThrows"; |
| } |
| |
| @Nullable |
| @Override |
| public JComponent createOptionsPanel() { |
| return new SingleCheckboxOptionsPanel( |
| InspectionsBundle.message("inspection.duplicate.throws.ignore.subclassing.option"), this, "ignoreSubclassing"); |
| } |
| |
| @Override |
| @NotNull |
| public PsiElementVisitor buildVisitor(@NotNull final ProblemsHolder holder, boolean isOnTheFly) { |
| return new JavaElementVisitor() { |
| |
| @Override public void visitMethod(PsiMethod method) { |
| PsiReferenceList throwsList = method.getThrowsList(); |
| PsiJavaCodeReferenceElement[] refs = throwsList.getReferenceElements(); |
| PsiClassType[] types = throwsList.getReferencedTypes(); |
| for (int i = 0; i < types.length; i++) { |
| PsiClassType type = types[i]; |
| for (int j = i+1; j < types.length; j++) { |
| PsiClassType otherType = types[j]; |
| String problem = null; |
| PsiJavaCodeReferenceElement ref = refs[i]; |
| if (type.equals(otherType)) { |
| problem = InspectionsBundle.message("inspection.duplicate.throws.problem"); |
| } |
| else if (!ignoreSubclassing) { |
| if (otherType.isAssignableFrom(type)) { |
| problem = InspectionsBundle.message("inspection.duplicate.throws.more.general.problem", otherType.getCanonicalText()); |
| } |
| else if (type.isAssignableFrom(otherType)) { |
| problem = InspectionsBundle.message("inspection.duplicate.throws.more.general.problem", type.getCanonicalText()); |
| ref = refs[j]; |
| type = otherType; |
| } |
| } |
| if (problem != null) { |
| holder.registerProblem(ref, problem, ProblemHighlightType.LIKE_UNUSED_SYMBOL, new DeleteThrowsFix(method, type)); |
| } |
| } |
| } |
| } |
| }; |
| } |
| |
| @Override |
| public boolean isEnabledByDefault() { |
| return true; |
| } |
| } |