text: /*
   * Copyright 2005-2020 Sixth and Red River Software, Bas Leijdekkers
   *
   *  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.sixrr.metrics.utils;
  
  import com.intellij.psi.*;
  import com.intellij.psi.search.searches.SuperMethodsSearch;
  import com.intellij.psi.util.MethodSignatureBackedByPsiMethod;
  import com.intellij.util.Query;
  
  public final class MethodUtils {
  
      private MethodUtils() {}
  
      public static boolean isConcreteMethod(PsiMethod method) {
          return method != null && !method.isConstructor() && !method.hasModifierProperty(PsiModifier.ABSTRACT) &&
                  !method.hasModifierProperty(PsiModifier.STATIC) && !method.hasModifierProperty(PsiModifier.PRIVATE);
      }
  
      public static boolean hasConcreteSuperMethod(PsiMethod method) {
          final Query<MethodSignatureBackedByPsiMethod> search = SuperMethodsSearch.search(method, null, true, false);
          return !search.forEach(superMethod -> {
              return isAbstract(superMethod.getMethod());
          });
      }
  
      public static boolean isAbstract(PsiMethod method) {
          if (method.hasModifierProperty(PsiModifier.STATIC) || method.hasModifierProperty(PsiModifier.DEFAULT)) {
              return false;
          }
          if (method.hasModifierProperty(PsiModifier.ABSTRACT)) {
              return true;
          }
          final PsiClass containingClass = method.getContainingClass();
          return containingClass != null && containingClass.isInterface();
      }
  
      public static String calculateSignature(PsiMethod method) {
          final PsiClass containingClass = method.getContainingClass();
          final String className;
          if (containingClass != null) {
              className = containingClass.getQualifiedName();
          } else {
              className = "";
          }
          final String methodName = method.getName();
          final StringBuilder out = new StringBuilder(50);
          out.append(className);
          out.append('.');
          out.append(methodName);
          out.append('(');
          final PsiParameterList parameterList = method.getParameterList();
          final PsiParameter[] parameters = parameterList.getParameters();
          for (int i = 0; i < parameters.length; i++) {
              if (i != 0) {
                  out.append(',');
              }
              final PsiType parameterType = parameters[i].getType();
              final String parameterTypeText = parameterType.getPresentableText();
              out.append(parameterTypeText);
          }
          out.append(')');
          return out.toString();
      }
  }
  