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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
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package com.google.protobuf;

import java.nio.ByteBuffer;

/**
 * Provides unsafe factory methods for {@link ByteString} instances.
 *
 * DISCLAIMER: The methods in this class should only be called if it is
 * guaranteed that the the buffer backing the {@link ByteString} will never change! Mutation of a
 * {@link ByteString} can lead to unexpected and undesirable consequences in your application,
 * and will likely be difficult to debug. Proceed with caution!
 */
public final class UnsafeByteStrings {
  private UnsafeByteStrings() {}

  /**
   * An unsafe operation that returns a {@link ByteString} that is backed by the provided buffer.
   *
   * @param buffer the Java NIO buffer to be wrapped.
   * @return a {@link ByteString} backed by the provided buffer.
   */
  public static ByteString unsafeWrap(ByteBuffer buffer) {
    return new NioByteString(buffer);
  }
}