Re: [fpc-pascal] $modeswitch declared before $mode fails without warning

2022-09-18 Thread Sven Barth via fpc-pascal 

Am 18.09.2022 um 15:39 schrieb Hairy Pixels via fpc-pascal:



On Sep 18, 2022, at 7:37 PM, Florian Klämpfl via fpc-pascal 
 wrote:

This is in general the case that $mode overrides all previously set switches 
i.e. it simply sets the switches as defined by the given mode so I am not sure 
if this is really worth a warning.

Is there ever a time where this would be useful to put a mode switch before the 
mode? I always think about it like a 2 step process: 1) choose the mode and 2) 
add extra features via mode switches. Unless I’m missing some use case it just 
seems like a way to create bugs.


The thing is that it is not necessary to use a mode directive. Either 
the user might be happy with the default mode FPC and just add some 
modeswitch for extended functionality or the mode might be provided as a 
command line parameter again with adding some special functionality.


And it would be much more effort to keep track of when a modeswitch 
directive was used in case a mode directive is used later on. Just not 
worth the effort as it's documented that a mode directive resets any 
modeswitches.


Regards,
Sven
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] $modeswitch declared before $mode fails without warning

2022-09-18 Thread Hairy Pixels via fpc-pascal 


> On Sep 18, 2022, at 7:37 PM, Florian Klämpfl via fpc-pascal 
>  wrote:
> 
> This is in general the case that $mode overrides all previously set switches 
> i.e. it simply sets the switches as defined by the given mode so I am not 
> sure if this is really worth a warning.

Is there ever a time where this would be useful to put a mode switch before the 
mode? I always think about it like a 2 step process: 1) choose the mode and 2) 
add extra features via mode switches. Unless I’m missing some use case it just 
seems like a way to create bugs.

Regards,
Ryan Joseph

___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] $modeswitch declared before $mode fails without warning

2022-09-18 Thread Florian Klämpfl via fpc-pascal 

Am 18.09.22 um 14:22 schrieb Hairy Pixels via fpc-pascal:

One more thing today working with closures. Declaring the modeswitch before the 
mode does not actually enable the feature and gives no warning. What happens 
then is basic syntax fails and you’re totally confused as to why.

Shouldn’t this be illegal or give a warning at least?

{$modeswitch functionreferences}
{$modeswitch anonymousfunctions}
{$mode objfpc}


This is in general the case that $mode overrides all previously set 
switches i.e. it simply sets the switches as defined by the given mode 
so I am not sure if this is really worth a warning.




program test;
var
   p: reference to procedure;
begin
end.

Regards,
Ryan Joseph

___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal


___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

[fpc-pascal] $modeswitch declared before $mode fails without warning

2022-09-18 Thread Hairy Pixels via fpc-pascal 
One more thing today working with closures. Declaring the modeswitch before the 
mode does not actually enable the feature and gives no warning. What happens 
then is basic syntax fails and you’re totally confused as to why.

Shouldn’t this be illegal or give a warning at least?

{$modeswitch functionreferences}
{$modeswitch anonymousfunctions}
{$mode objfpc}

program test;
var
  p: reference to procedure;
begin
end.

Regards,
Ryan Joseph

___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal