plugins/InspectionGadgets/src/com/siyeh/ig/cloneable/CloneCallsSuperCloneInspection.java

   1 /*
   2  * Copyright 2003-2007 Dave Griffith, Bas Leijdekkers
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.siyeh.ig.cloneable;
  17
  18 import com.intellij.psi.PsiClass;
  19 import com.intellij.psi.PsiMethod;
  20 import com.intellij.psi.PsiModifier;
  21 import com.siyeh.InspectionGadgetsBundle;
  22 import com.siyeh.ig.BaseInspection;
  23 import com.siyeh.ig.BaseInspectionVisitor;
  24 import com.siyeh.ig.psiutils.CloneUtils;
  25 import org.jetbrains.annotations.NotNull;
  26
  27 public class CloneCallsSuperCloneInspection extends BaseInspection {
  28
  29     @NotNull
  30     public String getID() {
  31         return "CloneDoesntCallSuperClone";
  32     }
  33
  34     @NotNull
  35     public String getDisplayName() {
  36         return InspectionGadgetsBundle.message(
  37                 "clone.doesnt.call.super.clone.display.name");
  38     }
  39
  40     @NotNull
  41     public String buildErrorString(Object... infos) {
  42       return InspectionGadgetsBundle.message(
  43               "clone.doesnt.call.super.clone.problem.descriptor");
  44     }
  45
  46     public boolean isEnabledByDefault() {
  47         return true;
  48     }
  49
  50     public BaseInspectionVisitor buildVisitor() {
  51         return new NoExplicitCloneCallsVisitor();
  52     }
  53
  54     private static class NoExplicitCloneCallsVisitor
  55             extends BaseInspectionVisitor {
  56
  57         @Override public void visitMethod(@NotNull PsiMethod method) {
  58             //note: no call to super;
  59             if (!CloneUtils.isClone(method)) {
  60                 return;
  61             }
  62             if(method.hasModifierProperty(PsiModifier.ABSTRACT) ||
  63                     method.hasModifierProperty(PsiModifier.NATIVE)) {
  64                 return;
  65             }
  66             final PsiClass containingClass = method.getContainingClass();
  67             if(containingClass == null) {
  68                 return;
  69             }
  70             if (containingClass.isInterface() ||
  71                 containingClass.isAnnotationType()) {
  72                 return;
  73             }
  74             if (CloneUtils.onlyThrowsCloneNotSupportedException(method)) {
  75                 if (method.hasModifierProperty(PsiModifier.FINAL) ||
  76                         containingClass.hasModifierProperty(
  77                                 PsiModifier.FINAL)) {
  78                     return;
  79                 }
  80             }
  81             final CallToSuperCloneVisitor visitor =
  82                     new CallToSuperCloneVisitor();
  83             method.accept(visitor);
  84             if (visitor.isCallToSuperCloneFound()) {
  85                 return;
  86             }
  87             registerMethodError(method);
  88         }
  89     }
  90 }