lib/nanoc3/base/compilation/rule.rb in nanoc3-3.2.0a3 vs lib/nanoc3/base/compilation/rule.rb in nanoc3-3.2.0a4

@@ -14,10 +14,12 @@
     #   using this rule
     attr_reader :rep_name
 
     # @return [Symbol] The name of the snapshot this rule will apply to.
     #   Ignored for compilation rules, but used for routing rules.
+    #
+    # @since 3.2.0
     attr_reader :snapshot_name
 
     # Creates a new item compilation rule with the given identifier regex,
     # compiler and block. The block will be called during compilation with the
     # item rep as its argument.
@@ -60,10 +62,10 @@
     # @raise [ArgumentError] if no compiler is passed
     #
     # @return [void]
     def apply_to(rep, params={})
       compiler = params[:compiler] or raise ArgumentError, "Required :compiler option is missing"
-      rep = Nanoc3::ItemRepProxy.new(rep, compiler)
+      rep = Nanoc3::ItemRepProxy.new(rep, compiler) unless rep.is_proxy?
       Nanoc3::RuleContext.new(:rep => rep, :compiler => compiler).instance_eval &@block
     end
 
   end