public T Evaluate(object host, IDictionary <string, object> variables = null)
{
var vars = new Dictionary <string, object>(variables ?? new Dictionary <string, object>());
vars.Add("self", Context);
vars.Add("host", host);
if (host is IFormulaHost)
{
foreach (var kvp in ((IFormulaHost)host).Variables)
{
vars.Add(kvp.Key, kvp.Value);
}
}
if (host is IModObject mo)
{
if (mo.TemplateParameters != null)
{
foreach (var kvp in mo.TemplateParameters)
{
vars.Add(kvp.Key, kvp.Value);
}
}
}
string fulltext;
if (ExternalScripts == null)
{
fulltext = Text;
}
else
{
fulltext = string.Join("\n", ExternalScripts.Select(q => q.Text)) + "\n" + Text;
}
return(PythonScriptEngine.EvaluateExpression <T>(fulltext, vars));
}
private static Field CreateStaticFormulaField(Field f, IDictionary <string, int> args)
{
var variables = args.ToDictionary(kvp => kvp.Key, kvp => (object)kvp.Value);
var result = PythonScriptEngine.EvaluateExpression <IConvertible>(f.Value.TrimStart('='), variables).ToStringInvariant();
var field = new Field();
field.Name = f.Name;
field.Value = result;
return(field);
}