plugins/InspectionGadgets/src/com/siyeh/ig/methodmetrics/MethodWithMultipleLoopsInspection.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.methodmetrics;
  17
  18 import com.intellij.psi.PsiMethod;
  19 import com.siyeh.InspectionGadgetsBundle;
  20 import com.siyeh.ig.BaseInspection;
  21 import com.siyeh.ig.BaseInspectionVisitor;
  22 import org.jetbrains.annotations.NotNull;
  23
  24 public class MethodWithMultipleLoopsInspection extends BaseInspection {
  25
  26     @NotNull
  27     public String getDisplayName() {
  28         return InspectionGadgetsBundle.message(
  29                 "method.with.multiple.loops.display.name");
  30     }
  31
  32     @NotNull
  33     public String buildErrorString(Object... infos) {
  34         final Integer negationCount = (Integer)infos[0];
  35         return InspectionGadgetsBundle.message(
  36                 "method.with.multiple.loops.problem.descriptor", negationCount);
  37     }
  38
  39     public BaseInspectionVisitor buildVisitor() {
  40         return new MethodWithMultipleLoopsVisitor();
  41     }
  42
  43     private static class MethodWithMultipleLoopsVisitor
  44             extends BaseInspectionVisitor {
  45
  46         @Override public void visitMethod(@NotNull PsiMethod method) {
  47             // note: no call to super
  48             if (method.getNameIdentifier() == null) {
  49                 return;
  50             }
  51             final LoopCountVisitor visitor = new LoopCountVisitor();
  52             method.accept(visitor);
  53             final int negationCount = visitor.getCount();
  54             if (negationCount <= 1) {
  55                 return;
  56             }
  57             registerMethodError(method, Integer.valueOf(negationCount));
  58         }
  59     }
  60 }