[fpc-pascal] named parameter

[Mark Morgan Lloyd]

On 27/05/17 08:00, Michael Van Canneyt wrote:
> On Sat, 27 May 2017, Mr Bee via fpc-pascal wrote:
>> Hi,>> As Pascal mostly well known as a safe, easy to read, and elegant
>> language,> don't you think Pascal needs named parameter? I mean for
>> ALL kind of> parameters, not just for Variants. When you have a
>> function with many> parameters having default values, you know that
>> named parameter is> desirable. For example:>> function f(p1: string =
>> ''; p2: integer = 0; p3: boolean = false);>> But you only need to
>> supply the third parameter, you still must supply the> first and
>> second ones with appropriate default values, like this:>> f('', 0,
>> true);>> while with named parameter, you can do this:>> f(p3 :=
>> true);>> I believe it would raise Pascal's code readability. I know it
>> has been> discussed before. I know somehow the parser had been able to
>> read such> syntax. So, why don't we have the option to enable it for
>> people who want> it? Kinda a syntax switch mode.>> What do you think? :)
>
> Opinions on what constitutes readable code clearly differ :)
> But as far as I know, the parser is not able to read this syntax ?

It would probably be possible to do it by using a record with nullable 
fields as the parameter.

Otherwise if you want that sort of thing use Smalltalk :-)

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]