public override Verb CreateVerb(string[] tokens)
{
var type = tokens[2];
var name = tokens[4];
Color(position, tokens[1].Length, Whitespaces);
Color(type.Length, KeyWords);
Color(tokens[3].Length, Whitespaces);
Color(name.Length, Operators);
Color(tokens[5].Length, Structures);
var index = position + length;
var parametersParser = new ParametersParser();
var parsed = parametersParser.Parse(source, index);
parsed.If(out var parameters, out index).Must().BeTrue().OrThrow("Operator parser", () => "Parameters malformed");
if (functionBodyParser.Parse(source, index).If(out var block, out var newIndex))
{
overridePosition = newIndex;
var lambda = new Lambda(new Region(), block, parameters, false);
var affinity = 0;
var pre = false;
switch (type)
{
case "nofix":
affinity = 0;
break;
case "prefix":
affinity = 1;
pre = true;
break;
case "postfix":
affinity = 1;
break;
case "infix":
affinity = 2;
break;
}
var userDefinedOperator = new UserDefinedOperator(affinity, pre, lambda);
CompilerState.RegisterOperator(name, userDefinedOperator);
return(new NullOp());
}
return(null);
}