private static int ElementLength(Opcode opcode, OpcodeEncodingElement encoding, dynamic value)
{
switch (encoding)
{
case OpcodeEncodingElement.Byte: return(1);
case OpcodeEncodingElement.Short: return(2);
case OpcodeEncodingElement.MessageId: return(3);
case OpcodeEncodingElement.Int: return(4);
case OpcodeEncodingElement.Address: return(2);
case OpcodeEncodingElement.JumpOffset: return(4);
case OpcodeEncodingElement.NumberArgument: return(NumberLength((NumberSpec)value));
case OpcodeEncodingElement.AddressArray: return(1 + 2 * ((ImmutableArray <ushort>)value).Length);
case OpcodeEncodingElement.NumberArray:
return(1 + ((ImmutableArray <NumberSpec>)value).Select(NumberLength).Sum());
case OpcodeEncodingElement.JumpOffsetArray: return(1 + 4 * ((ImmutableArray <int>)value).Length);
case OpcodeEncodingElement.String: return(1 + StringLength(opcode, (string)value) + 1);
case OpcodeEncodingElement.LongString: return(2 + StringLength(opcode, (string)value) + 1);
case OpcodeEncodingElement.StringArray:
return(1 + ((ImmutableArray <string>)value).Select(_ => StringLength(opcode, _) + 1).Sum() + 1);
case OpcodeEncodingElement.BitmappedNumberArguments:
return(1 + ((ImmutableArray <NumberSpec>)value).Select(_ => _.Value == 0 ? 0 : NumberLength(_))
.Sum());
case OpcodeEncodingElement.PostfixNotationExpression: return(RpneLength((PostfixExpression)value));
case OpcodeEncodingElement.Opcode65: return(Opcode65Length((Opcode65)value));
default:
throw new ArgumentOutOfRangeException(nameof(encoding), encoding, null);
}
}
private string FormatElement(Opcode opcode, int index, OpcodeEncodingElement element, dynamic data)
{
return(element switch
{
OpcodeEncodingElement.Byte => $"{data}b",
OpcodeEncodingElement.Short => $"{data}s",
OpcodeEncodingElement.Address => FormatNumber(NumberSpec.FromAddress(data)),
OpcodeEncodingElement.Int => $"{data}i",
OpcodeEncodingElement.String => $"S{FormatString(data)}",
OpcodeEncodingElement.LongString => $"L{FormatString(data)}",
OpcodeEncodingElement.NumberArgument => FormatNumber(data),
OpcodeEncodingElement.JumpOffset => FormatJumpOffset(data),
OpcodeEncodingElement.AddressArray => $"a[{string.Join(",", ((ImmutableArray<ushort>) data).Select(NumberSpec.FromAddress).Select(FormatNumber))}]",
OpcodeEncodingElement.StringArray => $"S[{string.Join(",", ((ImmutableArray<string>)data).Select(FormatString))}]",
OpcodeEncodingElement.NumberArray =>
$"n[{string.Join(",", ((ImmutableArray<NumberSpec>) data).Select(FormatNumber))}]",
OpcodeEncodingElement.JumpOffsetArray =>
$"j[{string.Join(",", ((ImmutableArray<int>) data).Select(FormatJumpOffset))}]",
OpcodeEncodingElement.PostfixNotationExpression => $"rpne{{{FormatPostfixExpression(data)}}}",
OpcodeEncodingElement.BitmappedNumberArguments =>
$"bmn[{string.Join(",", ((ImmutableArray<NumberSpec>) data).Select(FormatNumber))}]",
OpcodeEncodingElement.MessageId => $"{data}mi",
_ => throw new ArgumentOutOfRangeException()
});