content: /*
   * Copyright (C) 2008 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 com.taobao.android.dx.dex.file;
  
  import com.taobao.android.dx.rop.annotation.Annotations;
  import com.taobao.android.dx.rop.cst.CstMethodRef;
  import com.taobao.android.dx.util.AnnotatedOutput;
  import com.taobao.android.dx.util.Hex;
  import com.taobao.android.dx.util.ToHuman;
  
  /**
   * Association of a method and its annotations.
   */
  public final class MethodAnnotationStruct
          implements ToHuman, Comparable<MethodAnnotationStruct> {
      /** {@code non-null;} the method in question */
      private final CstMethodRef method;
  
      /** {@code non-null;} the associated annotations */
      private AnnotationSetItem annotations;
  
      /**
       * Constructs an instance.
       *
       * @param method {@code non-null;} the method in question
       * @param annotations {@code non-null;} the associated annotations
       */
      public MethodAnnotationStruct(CstMethodRef method,
              AnnotationSetItem annotations) {
          if (method == null) {
              throw new NullPointerException("method == null");
          }
  
          if (annotations == null) {
              throw new NullPointerException("annotations == null");
          }
  
          this.method = method;
          this.annotations = annotations;
      }
  
      /** {@inheritDoc} */
      public int hashCode() {
          return method.hashCode();
      }
  
      /** {@inheritDoc} */
      public boolean equals(Object other) {
          if (! (other instanceof MethodAnnotationStruct)) {
              return false;
          }
  
          return method.equals(((MethodAnnotationStruct) other).method);
      }
  
      /** {@inheritDoc} */
      public int compareTo(MethodAnnotationStruct other) {
          return method.compareTo(other.method);
      }
  
      /** {@inheritDoc} */
      public void addContents(DexFile file) {
          MethodIdsSection methodIds = file.getMethodIds();
          MixedItemSection wordData = file.getWordData();
  
          methodIds.intern(method);
          annotations = wordData.intern(annotations);
      }
  
      /** {@inheritDoc} */
      public void writeTo(DexFile file, AnnotatedOutput out) {
          int methodIdx = file.getMethodIds().indexOf(method);
          int annotationsOff = annotations.getAbsoluteOffset();
  
          if (out.annotates()) {
              out.annotate(0, "    " + method.toHuman());
              out.annotate(4, "      method_idx:      " + Hex.u4(methodIdx));
              out.annotate(4, "      annotations_off: " +
                      Hex.u4(annotationsOff));
          }
  
          out.writeInt(methodIdx);
          out.writeInt(annotationsOff);
      }
  
      /** {@inheritDoc} */
      public String toHuman() {
          return method.toHuman() + ": " + annotations;
      }
  
      /**
       * Gets the method this item is for.
       *
       * @return {@code non-null;} the method
       */
      public CstMethodRef getMethod() {
          return method;
      }
  
      /**
       * Gets the associated annotations.
       *
       * @return {@code non-null;} the annotations
       */
      public Annotations getAnnotations() {
          return annotations.getAnnotations();
      }
  }
  