[perl #129856] namespace clashes

[Brian S. Julin via RT]

On Wed, 12 Oct 2016 07:07:19 -0700, mt1...@gmail.com wrote:
> Hi,
> 
> I wanted to define a class in the 'Pod' package like so (in file 
> lib/Pod/Render.pm6)
> 
> 
> use Pod::To::HTML;
> unit package Pod;
> class Render {
># ...
> }
> 
> 
> Then use it
> 
> use Pod::Render;
> my Pod::Render $pr .= new;
> 
> Throws the exception
> 
> ===SORRY!===
> Type 'Pod::Render' is not declared
> at /home/marcel/Languages/Perl6/Projects/pod-render/bin/pod-render.pl6:10
> -->   my Pod::Render⏏ $pr .= new;
> Malformed my
> at /home/marcel/Languages/Perl6/Projects/pod-render/bin/pod-render.pl6:10
> -->   my Pod::⏏Render $pr .= new;
> 
> 
> I expect it to instantiate without problems as seen in my other projects.
> 
> When the declaration becomes like below, everything goes well.
> 
> use Pod::To::HTML;
> class Pod::Render {
> 
> }
> 
> 
> Greetings,
> Marcel
> 


This appears to have been fixed.  Tests added in roast commit 6e5180e96, so 
resolving.

[perl #129856] namespace clashes

[Zoffix Znet via RT]

I've narrowed down the issue to this condition: if the package's name is part 
something that we already have in core, then this bug (is it a bug?) appears:

No names to clash with core types; everything works:
$ cat Foo.pm6 
unit package Bar;
class Ber {}
$ perl6 -I. -MFoo -e 'say Bar::Ber'
(Ber)

Now package, as Op's, clashes with core Pod:: namespace the issue is there:
$ cat Foo.pm6 
unit package Pod;
class Ber {}
$ perl6 -I. -MFoo -e 'say Pod::Ber'
Could not find symbol ''
in block  at -e line 1

And this can be reproduced if we clash with something else, like IO role:
$ cat Foo.pm6 
unit package IO;
class Ber {}
$ perl6 -I. -MFoo -e 'say IO::Ber'
Could not find symbol ''
in block  at -e line 1



On Wed Oct 12 07:07:19 2016, mt1...@gmail.com wrote:
> Hi,
> 
> I wanted to define a class in the 'Pod' package like so (in file 
> lib/Pod/Render.pm6)
> 
> 
> use Pod::To::HTML;
> unit package Pod;
> class Render {
># ...
> }
> 
> 
> Then use it
> 
> use Pod::Render;
> my Pod::Render $pr .= new;
> 
> Throws the exception
> 
> ===SORRY!===
> Type 'Pod::Render' is not declared
> at /home/marcel/Languages/Perl6/Projects/pod-render/bin/pod-render.pl6:10
> -->   my Pod::Render⏏ $pr .= new;
> Malformed my
> at /home/marcel/Languages/Perl6/Projects/pod-render/bin/pod-render.pl6:10
> -->   my Pod::⏏Render $pr .= new;
> 
> 
> I expect it to instantiate without problems as seen in my other projects.
> 
> When the declaration becomes like below, everything goes well.
> 
> use Pod::To::HTML;
> class Pod::Render {
> 
> }
> 
> 
> Greetings,
> Marcel
> 

[perl #129856] namespace clashes

[via RT]

# New Ticket Created by  mt1957 
# Please include the string:  [perl #129856]
# in the subject line of all future correspondence about this issue. 
# https://rt.perl.org/Ticket/Display.html?id=129856 >


Hi,

I wanted to define a class in the 'Pod' package like so (in file 
lib/Pod/Render.pm6)


use Pod::To::HTML;
unit package Pod;
class Render {
   # ...
}


Then use it

use Pod::Render;
my Pod::Render $pr .= new;

Throws the exception

===SORRY!===
Type 'Pod::Render' is not declared
at /home/marcel/Languages/Perl6/Projects/pod-render/bin/pod-render.pl6:10
-->   my Pod::Render⏏ $pr .= new;
Malformed my
at /home/marcel/Languages/Perl6/Projects/pod-render/bin/pod-render.pl6:10
-->   my Pod::⏏Render $pr .= new;


I expect it to instantiate without problems as seen in my other projects.

When the declaration becomes like below, everything goes well.

use Pod::To::HTML;
class Pod::Render {

}


Greetings,
Marcel