public override void EvaluateNode(EvaluationContext context, AstMode mode)
{
if (EntryPoint == null)
{
context.ThrowError("No entry point defined (entry point is a function named «Go»)");
}
// load standard run-time library functions
var libraryFunctions = LibraryFunction.ExtractLibraryFunctions(context, new RefalLibrary(context));
foreach (LibraryFunction libFun in libraryFunctions)
{
context.SetValue(libFun.Name, libFun);
}
// define all functions
foreach (Function fun in FunctionList)
{
fun.Evaluate(context, mode);
}
// call entry point with empty expression as an argument
context.Data.Push(Runtime.PassiveExpression.Build());
EntryPoint.Call(context);
// discard execution results
context.Data.Pop();
context.ClearLastResult();
}
