(#4655) Allow stage to be set using a default class parameter

For example:
  stage{ pre: before => Stage[main] }
  class someclass ($stage=pre ) { ... }
  class { someclass: }

This transplants adding the edge from the resource to the stage from
the compiler into when the resource is evaluated.  This moves adding
the stage edges to after when the defaults are copied into the
resources, making them available.

Paired-with: Jesse Wolfe <jesse@puppetlabs.com>

1 files changed, 16 insertions, 1 deletions

diff --git a/lib/puppet/parser/resource.rb b/lib/puppet/parser/resource.rb
index c007d4dbe..b98bc0b80 100644
--- a/lib/puppet/parser/resource.rb
+++ b/lib/puppet/parser/resource.rb
@@ -62,13 +62,28 @@ class Puppet::Parser::Resource < Puppet::Resource
     scope.environment
   end
 
+  # Process the  stage metaparameter for a class.   A containment edge
+  # is drawn from  the class to the stage.   The stage for containment
+  # defaults to main, if none is specified.
+  def add_edge_to_stage
+    unless stage = catalog.resource(:stage, self[:stage] || (scope && scope.resource && scope.resource[:stage]) || :main)
+      raise ArgumentError, "Could not find stage #{self[:stage] || :main} specified by #{self}"
+    end
+
+    self[:stage] ||= stage.title unless stage.title == :main
+    catalog.add_edge(stage, self)
+  end
+
   # Retrieve the associated definition and evaluate it.
   def evaluate
     return if evaluated?
     @evaluated = true
     if klass = resource_type and ! builtin_type?
       finish
-      return klass.evaluate_code(self)
+      evaluated_code = klass.evaluate_code(self)
+      add_edge_to_stage
+
+      return evaluated_code
     elsif builtin?
       devfail "Cannot evaluate a builtin type (#{type})"
     else