Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris

Re^2: Segfault with MooseX::Declare and Regexp::Grammars

by betterworld (Curate)
on Feb 27, 2011 at 13:24 UTC ( #890414=note: print w/replies, xml ) Need Help??

in reply to Re: Segfault with MooseX::Declare and Regexp::Grammars
in thread Segfault with MooseX::Declare and Regexp::Grammars

Have you tried rewriting your program to use plain old Perl objects (no Moose::Declare)

As stated above, the issue disappears when I get rid of MooseX::Declare and use plain Moose or even plain objects like this:

{ package Foo; sub new { use Data::Dumper; print 'AH ', Dumper \@_; return bless {}; } }
can you have a null grammar qr{}

I need the "objrule" to have Regexp::Grammars call the constructor, so the grammar cannot be reduced much further.

Replies are listed 'Best First'.
Re^3: Segfault with MooseX::Declare and Regexp::Grammars
by ELISHEVA (Prior) on Feb 27, 2011 at 13:41 UTC

    If plain Perl objects and plain Moose objects don't cause this problem, could you clarify further what you are trying to pinpoint. What makes you unsure that this isn't an issue with MooseX::Declare and whatever magic it is conjuring up?

    It would seem to me that newer add-on packages like MooseX::Declare have a responsibility to work cleanly with core packages like Data::Dumper, as well as any non-core packages they extend (i.e. Moose). This is all the more so with something like MooseX::Declare which claims to be a safer way of doing the kinds of things people once tried to do with source filters.

      You are right that it is likely that the bug is in MooseX::Declare or one of its dependencies. I would like to find a way to reproduce this without resorting to other complicated modules like Regexp::Grammars (even though this module is pure Perl).

      Update: Other segmentation faults have already been described that are triggered by RG’s extensive use of the regex engine, so it’s not that unlikely that the culprit is in the regex engine.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://890414]
[karlgoethebier]: thao4: Si tout le reste échoue demande en francais ;-) There are some French speaking monks in the monastry...
[erix]: weird: a dev version perl (perl-5.27.9) is released, but git doesn't contain a perl-5.27.10 yet
[karlgoethebier]: ...not me ;-)
[thao4]: I posted my question, Could you help me , Please ?
[thao4]: posted with the title :Replace a patern_2 in 30 lines from the line with the patern_1 founded
[Eily]: karlgoethebier but we're trying to stay hidden!

How do I use this? | Other CB clients
Other Users?
Others perusing the Monastery: (7)
As of 2018-02-21 10:11 GMT
Find Nodes?
    Voting Booth?
    When it is dark outside I am happiest to see ...

    Results (277 votes). Check out past polls.