private static Instruction ToInstruction(Token token, TokenQueue tokens)
{
Func <Instruction> func = token.TokenType switch
{
TokenType.Number => () => new NumberInstruction(ushort.Parse(token.Value)),
TokenType.WireName => () => new GetWireInstruction(token.Value),
TokenType.Not => () =>
{
var rightToken = tokens.GetNext();
return(new NotInstruction(new GetWireInstruction(rightToken.Value)));
},
_ => () => new NullInstruction()
};
return(func());
}
}
private static Instruction AssignInstruction(TokenQueue tokens, Instruction instruction)
{
var rightToken = tokens.GetNext();
return(new AssignInstruction(instruction, new GetWireInstruction(rightToken.Value)));
}
private static Instruction AndInstruction(TokenQueue tokens, Instruction instruction)
{
var rightToken = tokens.GetNext();
return(new AndInstruction(instruction, ToInstruction(rightToken, tokens)));
}
private static Instruction NotInstruction(TokenQueue tokens)
{
var rightToken = tokens.GetNext();
return(new NotInstruction(ToInstruction(rightToken, tokens)));
}
private static Instruction LShiftInstruction(TokenQueue tokens, Instruction instruction)
{
var rightToken = tokens.GetNext();
return(new LeftShiftInstruction(instruction, ToInstruction(rightToken, tokens)));;
}