perl6 changes breaking code

p6rt commented 7 years ago

Migrated from rt.perl.org#130338 (status was 'open')

Searchable as RT130338$

p6rt commented 7 years ago

From @MARTIMM

Hi,

Recently after pulling the newest rakudo/moarvm (2016.11-238-g2f502b4 built on MoarVM version 2016.11-41-gd2139b5 implementing Perl 6.c) I saw errors in my code which compiled ok before. This is difficult to golf down because it disappears when used in another context. So better explain my way of coding.

The error I get now is

/home/marcel/Languages/Perl6/Projects/mongo-perl6-driver/xt/Sxml/driver-authentication.t .. ===SORRY!=== Type 'MongoDB::Server' is not declared at /home/marcel/Languages/Perl6/Projects/mongo-perl6-driver/lib/MongoDB/Client.pm6 (MongoDB::Client):152 ------> my MongoDB::Server⏏ $server .= new( Malformed my at /home/marcel/Languages/Perl6/Projects/mongo-perl6-driver/lib/MongoDB/Client.pm6 (MongoDB::Client):152 ------> my MongoDB::⏏Server $server .= new(

The module in question has the following at the top

use v6.c;

use MongoDB::Server; use MongoDB::Database; use MongoDB::Collection; use MongoDB::Uri; use MongoDB::Wire; use MongoDB::Authenticate::Credential; use MongoDB;

use BSON::Document; use Semaphore::ReadersWriters;

#------------------------------------------------------------------------------- unit package MongoDB:auth\https://github.com/MARTIMM;

#------------------------------------------------------------------------------- class Client { ... my MongoDB::Server $server .= new( :client(self), :$server-name, :$loop-time ); .... }

The server class is defined likewise as

use v6.c;

use MongoDB; use MongoDB::Server::Monitor; use MongoDB::Server::Socket; use MongoDB::Authenticate::Credential; use MongoDB::Authenticate::Scram;

use BSON::Document; use Semaphore::ReadersWriters; use Auth::SCRAM;

#------------------------------------------------------------------------------- unit package MongoDB:auth\https://github.com/MARTIMM;

#------------------------------------------------------------------------------- class Server { ... }

When e.g. the line 'use MongoDB::Uri' is moved above that of MongoDB::Server (in the Client module) another error is returned;

Type 'MongoDB::Uri' is not declared at /home/marcel/Languages/Perl6/Projects/mongo-perl6-driver/lib/MongoDB/Client.pm6 (MongoDB::Client):99 ------> my MongoDB::Uri⏏ $uri-obj .= new(:$!uri); Malformed my at /home/marcel/Languages/Perl6/Projects/mongo-perl6-driver/lib/MongoDB/Client.pm6 (MongoDB::Client):99 ------> my MongoDB::⏏Uri $uri-obj .= new(:$!uri);

Now I found out that when the 'unit package' line is moved above the use statements, the error disappears. Can anyone shed some light over this? I know that use statements can be used within package, module and class to narrow the scope of definitions but I can't remember anything which could explain this behavior.

Thanks, Marcel

p6rt commented 7 years ago

From @zoffixznet

On Tue, 13 Dec 2016 02:11:12 -0800, mt1957@gmail.com wrote:

Hi,

Recently after pulling the newest rakudo/moarvm (2016.11-238-g2f502b4 built on MoarVM version 2016.11-41-gd2139b5 implementing Perl 6.c) I saw errors in my code which compiled ok before. This is difficult to golf down because it disappears when used in another context. So better explain my way of coding.

The error I get now is

/home/marcel/Languages/Perl6/Projects/mongo-perl6- driver/xt/Sxml/driver-authentication.t .. ===SORRY!=== Type 'MongoDB::Server' is not declared at /home/marcel/Languages/Perl6/Projects/mongo-perl6- driver/lib/MongoDB/Client.pm6 (MongoDB::Client):152 ------> my MongoDB::Server⏏ $server .= new( Malformed my at /home/marcel/Languages/Perl6/Projects/mongo-perl6- driver/lib/MongoDB/Client.pm6 (MongoDB::Client):152 ------> my MongoDB::⏏Server $server .= new(

The module in question has the following at the top

use v6.c;

use MongoDB::Server; use MongoDB::Database; use MongoDB::Collection; use MongoDB::Uri; use MongoDB::Wire; use MongoDB::Authenticate::Credential; use MongoDB;

use BSON::Document; use Semaphore::ReadersWriters;

#------------------------------------------------------------------------------- unit package MongoDB:auth\https://github.com/MARTIMM;

#------------------------------------------------------------------------------- class Client { ... my MongoDB::Server $server .= new( :client(self), :$server-name, :$loop-time ); .... }

The server class is defined likewise as

use v6.c;

use MongoDB; use MongoDB::Server::Monitor; use MongoDB::Server::Socket; use MongoDB::Authenticate::Credential; use MongoDB::Authenticate::Scram;

use BSON::Document; use Semaphore::ReadersWriters; use Auth::SCRAM;

#------------------------------------------------------------------------------- unit package MongoDB:auth\https://github.com/MARTIMM;

#------------------------------------------------------------------------------- class Server { ... }

When e.g. the line 'use MongoDB::Uri' is moved above that of MongoDB::Server (in the Client module) another error is returned;

Type 'MongoDB::Uri' is not declared at /home/marcel/Languages/Perl6/Projects/mongo-perl6- driver/lib/MongoDB/Client.pm6 (MongoDB::Client):99 ------> my MongoDB::Uri⏏ $uri-obj .= new(:$!uri); Malformed my at /home/marcel/Languages/Perl6/Projects/mongo-perl6- driver/lib/MongoDB/Client.pm6 (MongoDB::Client):99 ------> my MongoDB::⏏Uri $uri-obj .= new(:$!uri);

Now I found out that when the 'unit package' line is moved above the use statements, the error disappears. Can anyone shed some light over this? I know that use statements can be used within package, module and class to narrow the scope of definitions but I can't remember anything which could explain this behavior.

Thanks, Marcel

Hi,

How did you build your Perl 6?

That version number looks suspicious. You say you're on 2016.11-238-g2f502b4, but the current HEAD/nom is 2016.11-226-g1d46004, 12 commits fewer than yours.

The most obvious answer is you're in possession of a time machine and are reporting bugs from the future. In which case, would you mind including this week's lottery numbers in your reply?

Let us know, Thank you.

p6rt commented 7 years ago

The RT System itself - Status changed from 'new' to 'open'

p6rt commented 7 years ago

From @MARTIMM

Hi,

How did you build your Perl 6?

That version number looks suspicious. You say you're on 2016.11-238-g2f502b4, but the current HEAD/nom is 2016.11-226-g1d46004, 12 commits fewer than yours.

The most obvious answer is you're in possession of a time machine and are reporting bugs from the future. In which case, would you mind including this week's lottery numbers in your reply?

Let us know, Thank you. Hi, Well, it is one of those undocumented features of perl 6 :-) About the lottery: 42 42 42 42 42 42 42 ...

What I do is pulling rakudo directly from the repo like I did this morning(11:05 CET);

git pull remote: Counting objects: 159, done. remote: Compressing objects: 100% (21/21), done. remote: Total 159 (delta 110), reused 102 (delta 102), pack-reused 35 Receiving objects: 100% (159/159), 47.58 KiB | 0 bytes/s, done. Resolving deltas: 100% (113/113), completed with 32 local objects. From git://github.com/rakudo/rakudo 5d6a8e9..7b09bee nom -> origin/nom ...

Then

perl Configure.pl --gen-moar --backends=moar make test make install

After the installation

perl6 -v This is Rakudo version 2016.11-271-g416e83b built on MoarVM version 2016.11-41-gd2139b5

What about this version? is it better? 40 commits further than 238. (maybe its a pull count instead of commit count ;-)

Thanks for all of your work everyone (I must say it somewhere someplace) Marcel

p6rt commented 7 years ago

From @MARTIMM

Hi,

I've rebuild rakudo from the ground up. Version I get now is 2016.11-236-g7b09bee built on MoarVM version 2016.11-41-gd2139b5 which looks better now. However, problem still exist. Can do for now with the unit package line before all use statements.

Raku / old-issue-tracker