public override IExpression <T> VisitMethod([NotNull] ExpressionParser.MethodContext context)
{
var name = context.GetChild(0).GetText();
var methodArgsNode = Visit(context.GetChild(1));
return(new Method <T>(name, methodArgsNode, methodProvider));
}
public override Result VisitMethod([NotNull] ExpressionParser.MethodContext context)
{
Result tmp = Visit(context.arguments());
object obj = FunctionProvider.Invoke(context.ID().GetText(), tmp.Value as object[]);
return(new Result {
Value = obj
});
}
public override Result VisitMethod([NotNull] ExpressionParser.MethodContext context)
{
Result tmp = Visit(context.arguments());
if (OnFunc != null)
{
OnFunc(context.ID().GetText(), tmp.Value as string[]);
}
return(base.VisitMethod(context));
}
public override object VisitMethod(ExpressionParser.MethodContext context)
{
var method = context.method.Text;
var paramList = context.e().Select(c => Visit(c)).ToList();
switch (method.ToLowerInvariant())
{
case "abs": return(GetNumeric(paramList[0]).Abs());
case "acos": return(GetNumeric(paramList[0]).Acos());
case "asin": return(GetNumeric(paramList[0]).Asin());
case "atan": return(paramList.Count == 2 ? NumericValue.Atan2(GetNumeric(paramList[1]), GetNumeric(paramList[0])) : GetNumeric(paramList[0]).Atan());
case "cos": return(GetNumeric(paramList[0]).Cos());
case "date": return(new NumericValue(new DateTimeOffset(DateTime.Now.Date, DateTimeOffset.Now.Offset).UtcTicks, "ticks"));
case "directoryname": return(GetDirectoryName(GetString(paramList[0])));
case "eval": return(new NEExpression(GetString(paramList[0])).InternalEvaluate(variables, row, unit));
case "extension": return(GetExtension(GetString(paramList[0])));
case "factor": return(GetNumeric(paramList[0]).Factor());
case "filename": return(GetFileName(GetString(paramList[0])));
case "filenamewithoutextension": return(GetFileNameWithoutExtension(GetString(paramList[0])));
case "fromdate": return(FromDate(GetString(paramList[0])));
case "fromwords": return(NumericValue.FromWords(GetString(paramList[0])));
case "gcf": return(NumericValue.GCF(paramList.Select(val => GetNumeric(val)).ToList()));
case "lcm": return(NumericValue.LCM(paramList.Select(val => GetNumeric(val)).ToList()));
case "len": return(GetString(paramList[0]).Length);
case "ln": return(GetNumeric(paramList[0]).Ln());
case "log": return(paramList.Count == 1 ? GetNumeric(paramList[0]).Log() : GetNumeric(paramList[0]).Log(GetNumeric(paramList[2])));
case "max": return(paramList.Select(param => GetNumeric(param)).Max());
case "min": return(paramList.Select(param => GetNumeric(param)).Min());
case "multiple": return(NumericValue.Multiple(GetNumeric(paramList[0]), GetNumeric(paramList[1])));
case "now": return(new NumericValue(DateTimeOffset.Now.UtcTicks, "ticks"));
case "random": return(NumericValue.Random(GetNumeric(paramList[0]), GetNumeric(paramList[1])));
case "reciprocal": return(GetNumeric(paramList[0]).Reciprocal());
case "reduce": return(NumericValue.Reduce(GetNumeric(paramList[0]), GetNumeric(paramList[1])));
case "root": return(GetNumeric(paramList[0]).Root(GetNumeric(paramList[1])));
case "sin": return(GetNumeric(paramList[0]).Sin());
case "sqrt": return(GetNumeric(paramList[0]).Root(GetNumeric(2)));
case "strformat": return(string.Format(GetString(paramList[0]), paramList.Skip(1).Select(param => Simplify(param)).ToArray()));
case "tan": return(GetNumeric(paramList[0]).Tan());
case "tmax": return(paramList.Select(param => GetString(param)).Max());
case "tmin": return(paramList.Select(param => GetString(param)).Min());
case "todate": return(ToDate(GetNumeric(paramList[0]), paramList.Count > 1 ? GetNumeric(paramList[1]) : null));
case "toutcdate": return(ToDate(GetNumeric(paramList[0]), new NumericValue(0, "ticks")));
case "towords": return(GetNumeric(paramList[0]).ToWords());
case "type": return(paramList[0].GetType());
case "utcdate": return(new NumericValue(DateTimeOffset.Now.UtcDateTime.Date.Ticks, "ticks"));
case "valideval": try { new NEExpression(GetString(paramList[0])).InternalEvaluate(variables, row, unit); return(true); } catch { return(false); }
case "validre": return(ValidRE(GetString(paramList[0])));
default: throw new ArgumentException($"Invalid method: {method}");
}
}
/// <summary>
/// Exit a parse tree produced by the <c>Method</c>
/// labeled alternative in <see cref="ExpressionParser.literal"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitMethod([NotNull] ExpressionParser.MethodContext context)
{
}
/// <summary>
/// Visit a parse tree produced by the <c>Method</c>
/// labeled alternative in <see cref="ExpressionParser.literal"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitMethod([NotNull] ExpressionParser.MethodContext context)
{
return(VisitChildren(context));
}
