public override List <SymbolToken> Tokenize()
{
// TODO: It's probably better to have a "prettify" tree transform
// that always runs before tokenizing an expression rather than
// manually manipulating stuff here...
var leftNegated = Operand1.Type == SymbolType.Negation;
var tokens = new List <SymbolToken>();
if (leftNegated)
{
tokens.AddRange(Operand2.Tokenize());
tokens.Add(new SymbolToken(SymbolType.Subtraction, "-"));
if (Operand1.Type.IsValue())
{
tokens.AddRange(Operand1.Tokenize());
}
else
{
tokens.Add(SymbolToken.OpenBracket);
tokens.AddRange(Operand1.Tokenize());
tokens.Add(SymbolToken.CloseBracket);
}
return(tokens);
}
// Reverses addition (commutative -- See TODO above)
tokens.AddRange(Operand2.Tokenize());
tokens.Add(new SymbolToken(Type, SymbolToken.OperatorStringOf(Type)));
tokens.AddRange(Operand1.Tokenize());
return(tokens);
}