/*
 * Copyright (C) 2011 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.android.jack.dx.io;

/**
 * A type definition.
 */
public final class ClassDef {
  public static final int NO_INDEX = -1;
  private final DexBuffer buffer;
  private final int offset;
  private final int typeIndex;
  private final int accessFlags;
  private final int supertypeIndex;
  private final int interfacesOffset;
  private final int sourceFileIndex;
  private final int annotationsOffset;
  private final int classDataOffset;
  private final int staticValuesOffset;

  public ClassDef(DexBuffer buffer,
      int offset,
      int typeIndex,
      int accessFlags,
      int supertypeIndex,
      int interfacesOffset,
      int sourceFileIndex,
      int annotationsOffset,
      int classDataOffset,
      int staticValuesOffset) {
    this.buffer = buffer;
    this.offset = offset;
    this.typeIndex = typeIndex;
    this.accessFlags = accessFlags;
    this.supertypeIndex = supertypeIndex;
    this.interfacesOffset = interfacesOffset;
    this.sourceFileIndex = sourceFileIndex;
    this.annotationsOffset = annotationsOffset;
    this.classDataOffset = classDataOffset;
    this.staticValuesOffset = staticValuesOffset;
  }

  public int getOffset() {
    return offset;
  }

  public int getTypeIndex() {
    return typeIndex;
  }

  public int getSupertypeIndex() {
    return supertypeIndex;
  }

  public int getInterfacesOffset() {
    return interfacesOffset;
  }

  public short[] getInterfaces() {
    return buffer.readTypeList(interfacesOffset).getTypes();
  }

  public int getAccessFlags() {
    return accessFlags;
  }

  public int getSourceFileIndex() {
    return sourceFileIndex;
  }

  public int getAnnotationsOffset() {
    return annotationsOffset;
  }

  public int getClassDataOffset() {
    return classDataOffset;
  }

  public int getStaticValuesOffset() {
    return staticValuesOffset;
  }

  @Override
  public String toString() {
    if (buffer == null) {
      return typeIndex + " " + supertypeIndex;
    }

    StringBuilder result = new StringBuilder();
    result.append(buffer.typeNames().get(typeIndex));
    if (supertypeIndex != NO_INDEX) {
      result.append(" extends ").append(buffer.typeNames().get(supertypeIndex));
    }
    return result.toString();
  }
}