Fixed Object#__binding__ constant lookup for modules by defining the method

directly on Object (fixes #93)

lib/pry/core_extensions.rb

@@ -1,55 +1,47 @@
-class Pry
-  module ObjectExtensions
+class Object
+  # Start a Pry REPL.
+  # This method differs from `Pry.start` in that it does not
+  # support an options hash. Also, when no parameter is provided, the Pry
+  # session will start on the implied receiver rather than on
+  # top-level (as in the case of `Pry.start`).
+  # It has two forms of invocation. In the first form no parameter
+  # should be provided and it will start a pry session on the
+  # receiver. In the second form it should be invoked without an
+  # explicit receiver and one parameter; this will start a Pry
+  # session on the parameter.
+  # @param [Object, Binding] target The receiver of the Pry session.
+  # @example First form
+  #   "dummy".pry
+  # @example Second form
+  #    pry "dummy"
+  # @example Start a Pry session on current self (whatever that is)
+  #   pry
+  def pry(target=self)
+    Pry.start(target)
+  end
 
-    # Start a Pry REPL.
-    # This method differs from `Pry.start` in that it does not
-    # support an options hash. Also, when no parameter is provided, the Pry
-    # session will start on the implied receiver rather than on
-    # top-level (as in the case of `Pry.start`).
-    # It has two forms of invocation. In the first form no parameter
-    # should be provided and it will start a pry session on the
-    # receiver. In the second form it should be invoked without an
-    # explicit receiver and one parameter; this will start a Pry
-    # session on the parameter.
-    # @param [Object, Binding] target The receiver of the Pry session.
-    # @example First form
-    #   "dummy".pry
-    # @example Second form
-    #    pry "dummy"
-    # @example Start a Pry session on current self (whatever that is)
-    #   pry
-    def pry(target=self)
-      Pry.start(target)
+  # Return a binding object for the receiver.
+  def __binding__
+    if is_a?(Module)
+      return class_eval "binding"
     end
 
-    # Return a binding object for the receiver.
-    def __binding__
-      if is_a?(Module)
-        return class_eval "binding"
+    unless respond_to? :__binding_impl__
+      begin
+        instance_eval %{
+          def __binding_impl__
+            binding
+          end
+        }
+      rescue TypeError
+        self.class.class_eval %{
+          def __binding_impl__
+            binding
+          end
+        }
       end
-
-      unless respond_to? :__binding_impl__
-        begin
-          instance_eval %{
-            def __binding_impl__
-              binding
-            end
-          }
-        rescue TypeError
-          self.class.class_eval %{
-            def __binding_impl__
-              binding
-            end
-          }
-        end
-      end
-
-      __binding_impl__
     end
+
+    __binding_impl__
   end
 end
-
-# bring the extensions into Object
-class Object
-  include Pry::ObjectExtensions
-end