Issue #4778 has been updated by Paul Berry.
Subject changed from Parameterized classes and scope to Evaluation of classes
instantiated using parameterized style shouldn't be deferred
I've done some more investigation into this. What's happening is that when
instantiating a class using "include", the contents of the class are evaluated
immediately, but when instantiating a class using the new "class { foo: }"
style, evaluation is deferred until later. This is why, in Markus's example,
the variable reference "$a::x" inside class b doesn't work: class a hasn't been
evaluated yet, even though it seems reasonable that it should be.
In the long term it would be nice if order dependencies like these could be
eliminated from the language. But in the short term I think the best solution
is to ensure that the "class { foo: }" style of class instantiation causes
evaluation to occur in the same order as "include foo".
----------------------------------------
Bug #4778: Evaluation of classes instantiated using parameterized style
shouldn't be deferred
http://projects.puppetlabs.com/issues/4778
Author: R.I. Pienaar aka Volcane
Status: Accepted
Priority: Normal
Assignee:
Category:
Target version: 2.6.x
Affected version: 2.6.1
Keywords:
Branch:
Given the manifest:
<pre>
stage{"bootstrap": before => Stage["main"]}
class setup {
$something = "this"
}
class foo {
notify{"${setup::something}": }
}
</pre>
The following includes work:
<pre>
include setup
include foo
notice: /Stage[main]/Foo/Notify[this]/message: defined 'message' as 'this'
</pre>
However if I put the setup in the bootstrap stage it doesnt:
<pre>
class{"setup": stage => "bootstrap"}
include foo
warning: Scope(Class[Foo]): Could not look up qualified variable
'setup::something'; class setup has not been evaluated
notice:
notice: /Stage[main]/Foo/Notify[]/message: defined 'message' as ''
No title provided and "Notify[]" is not a valid resource reference
</pre>
I'd expect this to work
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