On Tue, Feb 1, 2011 at 10:47 PM, Luke Kanies <l...@puppetlabs.com> wrote:
> On Feb 1, 2011, at 2:02 PM, Dan Bode wrote: > > Hi all, > > I wanted to open the feature request > http://projects.puppetlabs.com/issues/5824 for discussion. > > I like to specify all dependencies not defined within the enclosed scope > using the new relationship syntax. > > This leads to nice clean error messages if the required resources have not > been declared. > > class foo ( > $bar => 'baz' > ) { > Class['foo']->Class['super-ninja-app'] > .. resources and what-not > } > > I often use this syntax to specify external dependencies of the class > itself. I am starting to use this pattern *a lot* > > Having to specify > > Class['foo']-> within class foo { } > > in less than optimal for two reasons: > 1. more characters > 2. if the name of the class changes, then the reference to the class also > needs to change > > I would like to introduce the 'self' keyword to be used in this situation. > > > I think a far better solution is to support static declaration of class > dependencies: > > class foo requires otherclass {...} > > or > > class foo requires Yay[boo] {...} > that seems like it could be messy with inheritance as well. class foo requires Yay[boo], Yah[blah] inherits bar {...} > Although I expect it would be an antipattern for classes to require things > other than classes and thus maybe shouldn't be supported. > I would rather follow the basic principal of being flexible as we can. I am starting to get suspicious anytime anyone uses the word anti-pattern. > This would get you what you want, plus make it really easy to build a graph > of classes and their relationships. Mmmm, graphs. > > If that were added, would you still want the 'self' keyword? > that would suffice. > -- > Should I say "I believe in physics", or "I know that physics is true"? > -- Ludwig Wittgenstein, On Certainty, 602. > --------------------------------------------------------------------- > > Luke Kanies -|- http://puppetlabs.com -|- +1(615)594-8199 > > > -- > You received this message because you are subscribed to the Google Groups > "Puppet Developers" group. > To post to this group, send email to puppet-dev@googlegroups.com. > To unsubscribe from this group, send email to > puppet-dev+unsubscr...@googlegroups.com<puppet-dev%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/puppet-dev?hl=en. > -- You received this message because you are subscribed to the Google Groups "Puppet Developers" group. To post to this group, send email to puppet-dev@googlegroups.com. To unsubscribe from this group, send email to puppet-dev+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-dev?hl=en.
