java/java-impl/src/com/intellij/codeInspection/miscGenerics/GenericsInspectionToolBase.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   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.intellij.codeInspection.miscGenerics;
  17
  18 import com.intellij.codeInspection.InspectionManager;
  19 import com.intellij.codeInspection.ProblemDescriptor;
  20 import com.intellij.codeInspection.ex.BaseLocalInspectionTool;
  21 import com.intellij.psi.*;
  22 import org.jetbrains.annotations.NotNull;
  23
  24 import java.util.ArrayList;
  25 import java.util.Arrays;
  26 import java.util.List;
  27
  28 /**
  29  * @author ven
  30  */
  31 public abstract class GenericsInspectionToolBase extends BaseLocalInspectionTool {
  32   public ProblemDescriptor[] checkClass(@NotNull PsiClass aClass, @NotNull InspectionManager manager, boolean isOnTheFly) {
  33     final PsiClassInitializer[] initializers = aClass.getInitializers();
  34     if (initializers.length == 0) return null;
  35     List<ProblemDescriptor> descriptors = new ArrayList<ProblemDescriptor>();
  36     for (PsiClassInitializer initializer : initializers) {
  37       final ProblemDescriptor[] localDescriptions = getDescriptions(initializer, manager);
  38       if (localDescriptions != null) {
  39         descriptors.addAll(Arrays.asList(localDescriptions));
  40       }
  41     }
  42     if (descriptors.isEmpty()) return null;
  43     return descriptors.toArray(new ProblemDescriptor[descriptors.size()]);
  44   }
  45
  46   public ProblemDescriptor[] checkField(@NotNull PsiField field, @NotNull InspectionManager manager, boolean isOnTheFly) {
  47     final PsiExpression initializer = field.getInitializer();
  48     if (initializer != null) {
  49       return getDescriptions(initializer, manager);
  50     }
  51     return null;
  52   }
  53
  54   public ProblemDescriptor[] checkMethod(@NotNull PsiMethod psiMethod, @NotNull InspectionManager manager, boolean isOnTheFly) {
  55     final PsiCodeBlock body = psiMethod.getBody();
  56     if (body != null) {
  57       return getDescriptions(body, manager);
  58     }
  59     return null;
  60   }
  61
  62   public abstract ProblemDescriptor[] getDescriptions(PsiElement place, InspectionManager manager);
  63 }