plugins/InspectionGadgets/src/com/siyeh/ig/psiutils/LibraryUtil.java

   1 /*
   2  * Copyright 2003-2006 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.psiutils;
  17
  18 import com.intellij.psi.*;
  19 import org.jetbrains.annotations.NotNull;
  20
  21 public class LibraryUtil {
  22
  23     private LibraryUtil() {
  24         super();
  25     }
  26
  27     public static boolean classIsInLibrary(@NotNull PsiClass aClass) {
  28         return aClass instanceof PsiCompiledElement;
  29     }
  30
  31     public static boolean callOnLibraryMethod(
  32             @NotNull PsiMethodCallExpression expression) {
  33         final PsiMethod method = expression.resolveMethod();
  34         return method != null && method instanceof PsiCompiledElement;
  35     }
  36
  37     public static boolean isOverrideOfLibraryMethod(PsiMethod method){
  38                 final PsiMethod[] superMethods = method.findSuperMethods();
  39                 for(PsiMethod superMethod : superMethods){
  40                         final PsiClass containingClass =
  41                                         superMethod.getContainingClass();
  42                         if(containingClass != null &&
  43                                         classIsInLibrary(containingClass)){
  44                                 return true;
  45                         }
  46             if(isOverrideOfLibraryMethod(superMethod)){
  47                 return true;
  48             }
  49         }
  50                 return false;
  51         }
  52
  53     public static boolean isOverrideOfLibraryMethodParameter(
  54             PsiVariable variable) {
  55         if (variable instanceof PsiParameter) {
  56             final PsiParameter parameter = (PsiParameter)variable;
  57             final PsiElement scope = parameter.getDeclarationScope();
  58             if (scope instanceof PsiMethod) {
  59                 final PsiMethod method = (PsiMethod)scope;
  60                 if (isOverrideOfLibraryMethod(method)) {
  61                     return true;
  62                 }
  63             }
  64         }
  65         return false;
  66     }
  67 }