/// <summary>
/// Returns a decompiled chunk, with info based upon a default LuaFile
/// </summary>
/// <param name="chunk"></param>
/// <returns></returns>
public static Chunk DisassembleChunk(string c)
{
chunk = c;
index = 0;
file = new LuaFile();
loadNumber = PlatformConfig.GetNumberTypeConvertFrom(file);
if (chunk == null || string.IsNullOrWhiteSpace(chunk))
{
throw new Exception("chunk is empty");
}
return(ReadFunction());
}
/// <summary>
/// Returns a disassembled LuaFile
/// </summary>
/// <param name="c"></param>
/// <returns></returns>
public static LuaFile Disassemble(string c)
{
chunk = c;
index = 0;
file = new LuaFile();
Disassembler.loadNumber = null;
if (chunk == null || string.IsNullOrWhiteSpace(chunk))
{
throw new Exception("chunk is empty");
}
file.Identifier = GetString(4); // \027Lua
if (file.Identifier != (char)27 + "Lua")
{
throw new Exception("Not a valid Lua bytecode chunk");
}
file.Version = ReadInt8(); // 0x51
if (file.Version != 0x51)
{
throw new Exception(string.Format("Invalid bytecode version, 0x51 expected, got 0x{0:X}", file.Version));
}
int fmt = ReadInt8();
file.Format = fmt == 0 ? Format.Official : Format.Unofficial;
file.FormatNumber = fmt;
if (file.Format == Format.Unofficial)
{
throw new Exception("Unknown binary chunk format");
}
file.BigEndian = ReadInt8() == 0;
file.IntegerSize = ReadInt8();
file.SizeT = ReadInt8();
file.InstructionSize = ReadInt8();
file.NumberSize = ReadInt8();
file.IsFloatingPointNumbers = ReadInt8() == 0;
loadNumber = PlatformConfig.GetNumberTypeConvertFrom(file);
if (file.InstructionSize != 4)
{
throw new Exception("Unsupported instruction size '" + file.InstructionSize + "', expected '4'");
}
file.Main = ReadFunction();
return(file);
}
