public override InjectionValue VisitCall([NotNull] injectionParser.CallContext context)
{
var name = context.SYMBOL().GetText();
var argumentValues = context.argumentList().arguments()?.argument()?
.Select(arg => VisitExpression(arg.expression()))
.ToArray() ?? Array.Empty <InjectionValue>();
var result = InjectionValue.Unit;
if (TryGetObjectSubrutine(name, argumentValues, out var objectSubrutine))
{
result = objectSubrutine.Call(argumentValues);
}
else if (metadata.TryGetNativeSubrutine(name, argumentValues, out var nativeSubrutine))
{
result = nativeSubrutine.Call(argumentValues);
}
else if (argumentValues.Any() && metadata.TryGetNativeSubrutine(name, Array.Empty <InjectionValue>(), out nativeSubrutine))
{
result = nativeSubrutine.Call(Array.Empty <InjectionValue>());
}
else
{
if (metadata.TryGetSubrutine(name, argumentValues.Length, out var customSubrutine))
{
result = CallSubrutine(customSubrutine.Syntax, argumentValues);
}
else
{
var argumentKinds = argumentValues.Any()
? argumentValues.Select(x => x.Kind.ToString()).Aggregate((l, r) => l + "," + r)
: "no arguments";
throw new ScriptFailedException($"Function not found {name} ({argumentKinds})", context.Start.Line);
}
}
if (debugger != null)
{
debugger.AfterCall(new AfterCallContext(context, name, argumentValues, result));
}
return(result);
}