PascalScript: Procedures/Functions with Optional Parameters

aip1000 · 2016-08-15 02:18

My understanding is that Pascal can support optional parameters, in the form:

function FilterFile(S: WideString; isEnabled: Boolean = True): WideString;

In ReNamer, I get a compiler error (semicolon expected). Can someone confirm whether or not optional parameters are supported by ReNamer's PascalScript rules?

Thanks

den4b · 2016-08-15 10:33

Pascal language does support optional parameters, but unfortunately the PascalScript engine does not.

This might change in the future.

aip1000 · 2016-08-15 10:34

Good to know; thanks for the heads up!

Hannibal · 2016-09-20 08:11

den4b wrote:

Pascal language does support optional parameters, but unfortunately the PascalScript engine does not.
This might change in the future.

I hope it does change at some point.

den4b · 2016-09-20 09:46

Hannibal wrote:

I hope it does change at some point.

We all do, but I wouldn't hold your breath while waiting for it.

Not having optional parameters is just a minor inconvenience, not a show stopper. You can always have slightly different names for functions which take fewer arguments and assume default values.

For example:

function IncrementBy(X: Integer; Y: Integer): Integer;
begin
  Result := X + Y;
end;

function Increment(X: Integer): Integer;
begin
  Result := IncrementBy(X, 1); // Default of 1 is assumed
end;

den4b Forum

#1 2016-08-15 02:18

PascalScript: Procedures/Functions with Optional Parameters

#2 2016-08-15 10:33

Re: PascalScript: Procedures/Functions with Optional Parameters

#3 2016-08-15 10:34

Re: PascalScript: Procedures/Functions with Optional Parameters

#4 2016-09-20 08:11

Re: PascalScript: Procedures/Functions with Optional Parameters

#5 2016-09-20 09:46

Re: PascalScript: Procedures/Functions with Optional Parameters

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