//
// Author:
//   Jb Evain (jbevain@gmail.com)
//
// Copyright (c) 2008 - 2015 Jb Evain
// Copyright (c) 2008 - 2011 Novell, Inc.
//
// Licensed under the MIT/X11 license.
//

using System.IO;

namespace MonoFN.Cecil.PE
{
    internal class BinaryStreamReader : BinaryReader
    {
        public int Position
        {
            get { return (int)BaseStream.Position; }
            set { BaseStream.Position = value; }
        }
        public int Length
        {
            get { return (int)BaseStream.Length; }
        }
        public BinaryStreamReader(Stream stream) : base(stream) { }

        public void Advance(int bytes)
        {
            BaseStream.Seek(bytes, SeekOrigin.Current);
        }

        public void MoveTo(uint position)
        {
            BaseStream.Seek(position, SeekOrigin.Begin);
        }

        public void Align(int align)
        {
            align--;
            int position = Position;
            Advance(((position + align) & ~align) - position);
        }

        public DataDirectory ReadDataDirectory()
        {
            return new(ReadUInt32(), ReadUInt32());
        }
    }
}