* lib/delegate.rb (Delegator): now inherits BasicObject.

  [ruby-dev:39154], [Bug #2679], [ruby-dev:40242]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 16 deletions

diff --git a/lib/delegate.rb b/lib/delegate.rb
index b1f79582f4..473fa0cb8f 100644
--- a/lib/delegate.rb
+++ b/lib/delegate.rb
@@ -114,11 +114,21 @@
 # subclasses.  Subclasses should redefine \_\_getobj\_\_.  For a concrete
 # implementation, see SimpleDelegator.
 #
-class Delegator
-  [:to_s,:inspect,:=~,:!~,:===,:<=>].each do |m|
-    undef_method m
+class Delegator < BasicObject
+  # :stopdoc:
+  def class
+    (class << self; self; end).superclass
   end
 
+  def extend(*mods)
+    (class << self; self; end).class_eval {include(*mods)}
+  end
+
+  def self.const_missing(n)
+    ::Object.const_get(n)
+  end
+  # :startdoc:
+
   #
   # Pass in the _obj_ to delegate method calls to.  All methods supported by
   # _obj_ will be delegated to.
@@ -131,12 +141,12 @@ class Delegator
   def method_missing(m, *args, &block)
     begin
       target = self.__getobj__
-      unless target.respond_to?(m)
+      unless target.respond_to?(m, true)
         super(m, *args, &block)
       else
         target.__send__(m, *args, &block)
       end
-    rescue Exception
+    rescue ::Exception
       if i = $@.index{|s| %r"\A#{Regexp.quote(__FILE__)}:\d+:in `method_missing'\z"o =~ s}
         $@[0..i] = []
       end
@@ -248,17 +258,6 @@ class SimpleDelegator<Delegator
     raise ArgumentError, "cannot delegate to self" if self.equal?(obj)
     @delegate_sd_obj = obj
   end
-
-  def initialize(obj)   # :nodoc:
-    (self.public_methods - Delegator.public_api).each do |m|
-      class << self
-        self
-      end.class_eval do
-        undef_method m
-      end
-    end
-    super
-  end
 end
 
 # :stopdoc: