public object Has(FunctionArgument _args, EvalContext cal)
{
var args = _args.Arguments;
OperationHelper.AssertArgsNumberThrowIf(this, 1, args);
OperationHelper.AssertCertainValueThrowIf(this, args);
var ov = cal.GetValue <IValue>(args[0]);
return(this.Contains(ov));
}
public static bool Exists(FunctionArgument _args, EvalContext cal)
{
var args = _args.Arguments;
OperationHelper.AssertArgsNumberThrowIf(null, 1, args);
OperationHelper.AssertCertainValueThrowIf(null, args);
var ov = cal.GetValue <StringValue>(args)[0];
return(File.Exists(ov));
}
public static FileEasyWriter OpenEasyWrite(FunctionArgument _args, EvalContext cal)
{
var args = _args.Arguments;
OperationHelper.AssertArgsNumberThrowIf(null, 1, args);
OperationHelper.AssertCertainValueThrowIf(null, args);
var ov = cal.GetValue <StringValue>(args)[0];
return(new FileEasyWriter(ov));
}
public static number Cos(FunctionArgument _args, EvalContext cal)
{
var args = _args.Arguments;
OperationHelper.AssertArgsNumberThrowIf(null, 1, args);
OperationHelper.AssertCertainValueThrowIf(null, args);
var ov = cal.GetValue <number>(args[0]);
return(new number(System.Math.Cos(ov)));
}
public static TupleValue Split(FunctionArgument _args, EvalContext cal)
{
var args = _args.Arguments;
OperationHelper.AssertArgsNumberThrowIf(null, 2, args);
OperationHelper.AssertCertainValueThrowIf(null, args);
var ov = cal.GetValue <StringValue>(args);
return(new TupleValue(ov[0].Value.Split(ov[1].Value[0]).Select(x => new iExpr.Values.ConcreteValue(new StringValue(x)))));
}
public static StringValue Substring(FunctionArgument _args, EvalContext cal)
{
var args = _args.Arguments;
OperationHelper.AssertArgsNumberThrowIf(null, 3, args);
OperationHelper.AssertCertainValueThrowIf(null, args);
var ov = cal.GetValue <StringValue>(args[0]);
var begin = (int)cal.GetValue <RealNumber>(args[1]);
var len = (int)cal.GetValue <RealNumber>(args[2]);
return(new StringValue(ov.Value.Substring(begin, len)));
}
public static StringValue Remove(FunctionArgument _args, EvalContext cal)
{
var args = _args.Arguments;
OperationHelper.AssertCertainValueThrowIf(null, args);
if (OperationHelper.AssertArgsNumber(3, args))
{
var ov = cal.GetValue <StringValue>(args[0]);
var begin = (int)cal.GetValue <RealNumber>(args[1]);
var len = (int)cal.GetValue <RealNumber>(args[2]);
return(new StringValue(ov.Value.Remove(begin, len)));
}
else if (OperationHelper.AssertArgsNumber(2, args))
{
var ov = cal.GetValue <StringValue>(args[0]);
var begin = (int)cal.GetValue <RealNumber>(args[1]);
return(new StringValue(ov.Value.Remove(begin)));
}
ExceptionHelper.RaiseWrongArgsNumber(null, 3, args?.Length ?? 0);
return(default);
public static number Next(FunctionArgument _args, EvalContext cal)
{
var args = _args.Arguments;
OperationHelper.AssertCertainValueThrowIf(null, args);
var ov = cal.GetValue <number>(args);
switch (ov.Length)
{
case 0:
return(new number(rand.Next()));
case 1:
return(new number(rand.Next(ov[0])));
case 2:
return(new number(rand.Next(ov[0], ov[1])));
}
ExceptionHelper.RaiseWrongArgsNumber(null, 2, args?.Length ?? 0);
return(default);