content: /*
   * Copyright 2016 HuntBugs contributors
   * 
   * 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 one.util.huntbugs.util;
  
  import java.lang.reflect.Field;
  import java.security.AccessController;
  import java.security.PrivilegedAction;
  
  import com.strobel.assembler.metadata.MethodDefinition;
  import com.strobel.assembler.metadata.VariableDefinition;
  
  /**
   * @author Tagir Valeev
   *
   */
  public class Variables {
      static final Field variableMethodDefinitionField;
  
      static {
          variableMethodDefinitionField = AccessController.doPrivileged((PrivilegedAction<Field>) () -> {
              try {
                  Field f = VariableDefinition.class.getDeclaredField("_declaringMethod");
                  f.setAccessible(true);
                  return f;
              } catch (NoSuchFieldException | SecurityException e) {
                  throw new InternalError(e);
              }
          });
      }
  
      public static MethodDefinition getMethodDefinition(VariableDefinition vd) {
          try {
              return (MethodDefinition) variableMethodDefinitionField.get(vd);
          } catch (IllegalArgumentException | IllegalAccessException e) {
              throw new InternalError(e);
          }
      }
  
  }
  