1 files changed, 44 insertions, 0 deletions
diff --git a/lib/chef/dsl/definitions.rb b/lib/chef/dsl/definitions.rb
new file mode 100644
index 0000000000..1358f67720
--- /dev/null
+++ b/lib/chef/dsl/definitions.rb
@@ -0,0 +1,44 @@
+class Chef
+  module DSL
+    #
+    # Module containing a method for each declared definition
+    #
+    # Depends on declare_resource(name, created_at, &block)
+    #
+    # @api private
+    #
+    module Definitions
+      def self.add_definition(dsl_name)
+        module_eval <<-EOM, __FILE__, __LINE__+1
+          def #{dsl_name}(*args, &block)
+            evaluate_resource_definition(#{dsl_name.inspect}, *args, &block)
+          end
+        EOM
+      end
+
+      # @api private
+      def has_resource_definition?(name)
+        run_context.definitions.has_key?(name)
+      end
+
+      # Processes the arguments and block as a resource definition.
+      #
+      # @api private
+      def evaluate_resource_definition(definition_name, *args, &block)
+
+        # This dupes the high level object, but we still need to dup the params
+        new_def = run_context.definitions[definition_name].dup
+
+        new_def.params = new_def.params.dup
+        new_def.node = run_context.node
+        # This sets up the parameter overrides
+        new_def.instance_eval(&block) if block
+
+        new_recipe = Chef::Recipe.new(cookbook_name, recipe_name, run_context)
+        new_recipe.params = new_def.params
+        new_recipe.params[:name] = args[0]
+        new_recipe.instance_eval(&new_def.recipe)
+      end
+    end
+  end
+end