Flag proposal

[so]

On Tue, 14 Jun 2011 16:01:20 +0300, KennyTM~ <kennytm at gmail.com> wrote:

> On Jun 14, 11 19:11, so wrote:
> [snip]
>> Also i don't understand why some think allowing hybrid calls has any
>> merit. Just search "named arguments" and first thing you'd see is calls
>> with all arguments named, no exception. Allowing unnamed arguments and
>> named arguments in one call doesn't make any sense to me, it is almost
>> opposite to the reasons named arguments designed for, you don't even
>> need to talk about its drawbacks like the complications and confusions.
>
> And if you think it's complicated, you're just thinking in a too  
> complicated way. The rule is simple.
>
> Say there is a function
>
>      pure nothrow
>      S parseString(S=const(char)[], C)
>         (ref C[] input,
>          out ConversionResult result,
>          char quote='"',
>          bool recognizePrefix=true) if (...);
>
> and you call it as
>
>      string s = `"hello"`;
>      ConversionResult detailResult;
>      auto parsed = parseString(s, recognizePrefix:false,  
> result:detailResult);
>
> The first step is identify all positional arguments ('s' here), and fill  
> them in in-order.
>
>      input <- s
>      result <- ...
>      quote <- ...
>      recognizePrefix <- ...
>
> next, we match the named args
>
>      input <- s
>      result <- detailResult
>      quote <- ...
>      recognizePrefix <- false
>
> finally we fill in the optional parameters
>
>      input <- s
>      result <- detailResult
>      quote <- '"'
>      recognizePrefix <- false
>
> what's so complicated? Actually, reordering creates more complication  
> than hybrid (e.g. ambiguity in selecting an overload).

So complicated because it took you this long to match the parameters with  
the variables, you still need to check function definition because you  
have parameters that have no match. These are the very things named  
arguments needs to solve or am i missing something?

You could just drop it and go read the function signature everytime, it'd  
save you time :P