content: /*
   * Copyright 2019 The Android Open Source Project
   *
   * 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 android.processor.view.inspector;
  
  import static javax.tools.Diagnostic.Kind.ERROR;
  
  import androidx.annotation.NonNull;
  import androidx.annotation.Nullable;
  
  import javax.annotation.processing.Messager;
  import javax.lang.model.element.AnnotationMirror;
  import javax.lang.model.element.AnnotationValue;
  import javax.lang.model.element.Element;
  
  /**
   * Internal exception used to signal an error processing an annotation.
   */
  final class ProcessingException extends RuntimeException {
      private final @Nullable Element mElement;
      private final @Nullable AnnotationMirror mAnnotationMirror;
      private final @Nullable AnnotationValue mAnnotationValue;
  
      ProcessingException(@NonNull String message) {
          this(message, null, null, null);
      }
  
      ProcessingException(@NonNull String message, @NonNull Element element) {
          this(message, element, null, null);
      }
  
      ProcessingException(
              @NonNull String message,
              @NonNull Element element,
              @NonNull AnnotationMirror annotationMirror) {
          this(message, element, annotationMirror, null);
      }
  
      ProcessingException(
              @NonNull String message,
              @Nullable Element element,
              @Nullable AnnotationMirror annotationMirror,
              @Nullable AnnotationValue annotationValue) {
          super(message);
          mElement = element;
          mAnnotationMirror = annotationMirror;
          mAnnotationValue = annotationValue;
      }
  
      /**
       * Prints the exception to a Messager.
       *
       * @param messager A Messager to print to
       */
      void print(@NonNull Messager messager) {
          if (mElement != null) {
              if (mAnnotationMirror != null) {
                  if (mAnnotationValue != null) {
                      messager.printMessage(
                              ERROR, getMessage(), mElement, mAnnotationMirror, mAnnotationValue);
                  } else {
                      messager.printMessage(ERROR, getMessage(), mElement, mAnnotationMirror);
                  }
              } else {
                  messager.printMessage(ERROR, getMessage(), mElement);
              }
          } else {
              messager.printMessage(ERROR, getMessage());
          }
      }
  }
  