Add a doc attribute to AST nodes and fill it with the last seen comments

The lexer maintains a stack of last seen comments.
On blank lines the lexer flush the comments.
On each opening brace the lexer enters a new stack level.
On each block AST nodes, the stack is popped.

Each AST nodes has a doc property that is filled with the
last seen comments on node creation (in fact only on important node
creation representing statements).

Signed-off-by: Brice Figureau <brice-puppet@daysofwonder.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/puppet/parser/ast/resource_override.rb b/lib/puppet/parser/ast/resource_override.rb
index 8380dcd00..5c4a2410f 100644
--- a/lib/puppet/parser/ast/resource_override.rb
+++ b/lib/puppet/parser/ast/resource_override.rb
@@ -4,6 +4,9 @@ class Puppet::Parser::AST
     # Set a parameter on a resource specification created somewhere else in the
     # configuration.  The object is responsible for verifying that this is allowed.
     class ResourceOverride < Resource
+
+        associates_doc
+
         attr_accessor :object
         attr_reader :params