/// <summary>
/// Emits a literal constant into the code stream.
/// </summary>
/// <param name="label">The label to apply to the data.</param>
/// <param name="LiteralData"></param>
// SigType type, object data)
void ICodeEmitter.Literal(int label, IR.LiteralData LiteralData)
{
// Save the current position
long currentPosition = _codeStream.Position;
// Relative branch offset
//int relOffset;
// Flag, if we should really emit the literal (only if the literal is used!)
bool emit = false;
// Byte representation of the literal
byte[] bytes;
// Check if this label has forward references on it...
emit = (0 != _literals.RemoveAll(delegate(Patch p)
{
if (p.label == label)
{
_codeStream.Position = p.position;
// HACK: We can't do PIC right now
//relOffset = (int)currentPosition - ((int)p.position + 4);
bytes = LittleEndianBitConverter.GetBytes((int)currentPosition);
_codeStream.Write(bytes, 0, bytes.Length);
return(true);
}
return(false);
}));
if (emit)
{
_codeStream.Position = currentPosition;
switch (LiteralData.Type.Type)
{
case CilElementType.I8:
bytes = LittleEndianBitConverter.GetBytes((long)LiteralData.Data);
break;
case CilElementType.U8:
bytes = LittleEndianBitConverter.GetBytes((ulong)LiteralData.Data);
break;
case CilElementType.R4:
bytes = LittleEndianBitConverter.GetBytes((float)LiteralData.Data);
break;
case CilElementType.R8:
bytes = LittleEndianBitConverter.GetBytes((double)LiteralData.Data);
break;
default:
throw new NotImplementedException();
}
_codeStream.Write(bytes, 0, bytes.Length);
}
}
/// <summary>
/// Returns a <see cref="System.String"/> that represents this instance.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>
/// A <see cref="System.String"/> that represents this instance.
/// </returns>
public override string ToString(Context context)
{
LiteralData data = (LiteralData)context.Other;
return(String.Format("{0} ; {1} {2} {3}", ToString(context), data.Label, data.Type, data.Data));
}