Jira (PUP-7111) a None data type in Puppet?

[Francois Lafont (JIRA)]

Title: Message Title

Francois Lafont commented on PUP-7111   Re: a None data type in Puppet? Hi. Thanks Henrik Lindberg for your answer and sorry for my late answer. Indeed the default value can be relevant but, imho, only to set a real default value of a class. Personally the meaning of my None value is not the same as the default value. The meaning of my None value is really "I provide no value for this parameter". In fact the meaning of my None value is clearly undef but the problem of undef value for me is that it's impossible to pass this value in a resource-like declaration. Of course, I know well the (very nice) data binding mechanism etc. (with hiera or the function data provider) and I use it daily. But I use too classes via resource-like declarations, especially in my high-level classes which I call my "roles". In fact, the real solution to my problem could be the undef value and in my "roles" classes I would like to put this: class { 'mymod': foo => undef, } even if the undef value is not the default value. In clear, I completely agree with you when you say "I think that passing an explicit undef in a resource _expression_ should not pick the default value if it is acceptable to assign undef to the parameter" and this is in fact exactly my problem here and my idea of a None value is in fact a workaround as regards this problem (so, as all workarounds, this is so not necessarily a good idea). But of course, I guess that changing this behavior (foo => undef doesn't mean anaymore "take the defaut value" but "set foo to undef") is big decision, because it breaks the backward compatibility. Add Comment   This message was sent by Atlassian JIRA (v6.4.14#64029-sha1:ae256fe) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at https://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.