ActionBase IActionVisitor <ushort, ActionBase> .Visit(ActionTry action, ushort length)
{
action.Reserved = (byte)_reader.ReadUnsignedBits(5);
action.CatchInRegister = _reader.ReadBit();
action.FinallyBlock = _reader.ReadBit();
action.CatchBlock = _reader.ReadBit();
var trySize = _reader.ReadUInt16();
var catchSize = _reader.ReadUInt16();
var finallySize = _reader.ReadUInt16();
if (action.CatchInRegister)
{
action.CatchRegister = _reader.ReadByte();
}
else
{
action.CatchName = _reader.ReadString();
}
ReadActions(_reader, trySize, action.Try);
if (action.CatchBlock)
{
ReadActions(_reader, catchSize, action.Catch);
}
if (action.FinallyBlock)
{
ReadActions(_reader, finallySize, action.Finally);
}
return(action);
}
object IActionVisitor <ISwfStreamWriter, object> .Visit(ActionTry action, ISwfStreamWriter writer)
{
writer.WriteUnsignedBits(action.Reserved, 5);
writer.WriteBit(action.CatchInRegister);
writer.WriteBit(action.FinallyBlock);
writer.WriteBit(action.CatchBlock);
var tryBlock = GetBody(action.Try);
var catchBlock = action.CatchBlock ? GetBody(action.Catch) : null;
var finallyBlock = action.FinallyBlock ? GetBody(action.Finally) : null;
writer.WriteUInt16((ushort)tryBlock.Length);
writer.WriteUInt16(catchBlock != null ? (ushort)catchBlock.Length : (ushort)0);
writer.WriteUInt16(finallyBlock != null ? (ushort)finallyBlock.Length : (ushort)0);
if (action.CatchInRegister)
{
writer.WriteByte(action.CatchRegister);
}
else
{
writer.WriteString(action.CatchName);
}
writer.WriteBytes(tryBlock);
if (catchBlock != null)
{
writer.WriteBytes(catchBlock);
}
if (finallyBlock != null)
{
writer.WriteBytes(finallyBlock);
}
return(null);
}