On Tuesday, May 27, 2014 6:53:29 AM UTC-5, Felix.Frank wrote: > > On 05/26/2014 06:40 PM, Fabrice Bacchella wrote: > > Is that normal that params1 is part of the context in both case, but not > param2 ? > > Ugh. Scope semantics. It *does* seem a little weird. Here's my take: >
I don't think it's even weird, once you understand that Puppet does not have nested scopes. It has global scope and local scopes, and on the DSL side it has a mechanism for consulting a hierarchy of multiple scopes (based on name components, not on lexical nesting or declaration chains) to resolve relative names. The Puppet variables available in a template directly from the scope object are the locals of the scope from which template() or inline_template() was called, plus (I think) the globals that are not shadowed by locals. Your template is evaluated from inside these defined type instances: > Mytpe[mytype] > Mysubtype[/tmp/parsed1] > > That is exactly the key. > Therefor $name and $title *must* take the values 'mytype' and > '/tmp/parsed1' respectively. Anything else would be quite inconsistent. > > Quite so. And it's not just a question of consistency -- it's the right answer. When the template is evaluated (directly) by Mytype['mytype'], the locals $name and $title both have the value 'mytype', and there is another local, $param2. When the template is evaluated by Mysubtype['/tmp/parsed1'], the locals $name and $title both have value '/tmp/parsed1', and there are additional locals $filepath and $source, but there is no local $param2. Also, $param1 should not be part of *either* scope, contrary to the OP's remark that it is part of both. The diff does not support the OP's claim, which I suspect is an incorrect inference. If $param1 really is in both scopes, though, then that is inconsistent with Puppet's scoping documentation<http://docs.puppetlabs.com/puppet/latest/reference/lang_scope.html> . Finally, I observe that the templates are a bit of a red herring here. They provide a convenient way to enumerate the contents of a scope, but the differences in the contents of scopes presented to them are not a question of templating. John -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/puppet-users/c3fdab4c-e2c3-4c34-b2af-876d1b1f0c35%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
