protected override void OnExecute(Engine engine)
{
if (Prototype != null)
{
var func = Prototype;
var open = func.IndexOf('(');
var close = func.LastIndexOf(')');
if (open == -1 || close == -1) engine.Throw("missing parentheses: " + func);
FunctionName = func.Substring(0, open);
var fields = func.Substring(open + 1, close - (open + 1)).Split(',');
Parameters.AddRange(fields.Select(field => ParseParameter(engine, field.Trim())));
}
engine.DefineFunction(FunctionName, this);
}
protected override void OnExecute(Engine engine)
{
engine.DefineFunction(FunctionName, this);
}