"Could not find symbol" error occurs when you use module A::B::C within A::B's class definition

[p6rt]

Migrated from rt.perl.org#128268 (status was 'open')

Searchable as RT128268$

[p6rt]

From @hoelzro

I found this issue when trying to use XML​::Query; the attached tarball has a golfed-down example. I've also attached a picture that illustrates the "use" relationship between the various units.

When I try to run test.pl in the tarball, I get the following error​:

===SORRY!===
Could not find symbol '&B'

Disabling precompilation fixes the issue, as does rearranging the contents of lib/Common/A.pm so that "use Common​::A​::B" comes before "unit class Common​::A". Removing any seemingly superfluous use statement fixes the issue, so it appears this is one of those wacky dependency graph + precomp bugs.

[p6rt]

From @hoelzro

test-module.png

[p6rt]

From @hoelzro

test-module.tar.xz

[p6rt]

From @LLFourn

Looks similar to RT #​128156.

https://rt.perl.org/Public/Bug/Display.html?id=128156

On Fri, May 27, 2016 at 10​:49 PM Rob Hoelz <perl6-bugs-followup@​perl.org>
wrote​:

# New Ticket Created by Rob Hoelz
# Please include the string​: [perl #​128268]
# in the subject line of all future correspondence about this issue.
# <URL​: https://rt-archive.perl.org/perl6/Ticket/Display.html?id=128268 >

I found this issue when trying to use XML​::Query; the attached tarball has
a golfed-down example. I've also attached a picture that illustrates the
"use" relationship between the various units.

When I try to run test.pl in the tarball, I get the following error​:

===SORRY!===
Could not find symbol '&B'

Disabling precompilation fixes the issue, as does rearranging the contents
of lib/Common/A.pm so that "use Common​::A​::B" comes before "unit class
Common​::A". Removing any seemingly superfluous use statement fixes the
issue, so it appears this is one of those wacky dependency graph + precomp
bugs.

[p6rt]

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

[p6rt]

From @zoffixznet

While RT#​128156 is now marked as resolved, this bug is still present​:

zoffix@​leliana​:~/CPANPRC/rakudo$ ./perl6-m -v
This is Rakudo version 2016.05-361-gd1ebac0 built on MoarVM version 2016.06-9-g8fc21d5
implementing Perl 6.c.

zoffix@​leliana​:~/CPANPRC/rakudo$ ./perl6-m -Iz/test-module/lib/ z/test-module/test.pl
===SORRY!===
Could not find symbol '&B'