* object.c (rb_obj_equal): Add documentation. Patch by Vincent Batts.

	  [Ruby 1.9 - Bug #4664]
	* lib/rexml:  ditto
	* lib/mkmf.rb:  ditto
	* ext/socket/lib/socket.rb:  ditto


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31525 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 15 insertions, 0 deletions

diff --git a/lib/rexml/quickpath.rb b/lib/rexml/quickpath.rb
index 06cb4f9115..8229bacd6f 100644
--- a/lib/rexml/quickpath.rb
+++ b/lib/rexml/quickpath.rb
@@ -6,6 +6,8 @@ module REXML
     include Functions
     include XMLTokens
 
+    # A base Hash object to be used when initializing a
+    # default empty namespaces set.
     EMPTY_HASH = {}
 
     def QuickPath::first element, path, namespaces=EMPTY_HASH
diff --git a/lib/rexml/xpath.rb b/lib/rexml/xpath.rb
index 5f7ecefe29..a8952ff473 100644
--- a/lib/rexml/xpath.rb
+++ b/lib/rexml/xpath.rb
@@ -5,6 +5,9 @@ module REXML
   # Wrapper class.  Use this class to access the XPath functions.
   class XPath
     include Functions
+    # A base Hash object, supposing to be used when initializing a
+    # default empty namespaces set, but is currently unused.
+    # TODO: either set the namespaces=EMPTY_HASH, or deprecate this.
     EMPTY_HASH = {}
 
     # Finds and returns the first node that matches the supplied xpath.
diff --git a/lib/rexml/xpath_parser.rb b/lib/rexml/xpath_parser.rb
index 3bffd389d0..0fc9da2e08 100644
--- a/lib/rexml/xpath_parser.rb
+++ b/lib/rexml/xpath_parser.rb
@@ -5,20 +5,30 @@ require 'rexml/syncenumerator'
 require 'rexml/parsers/xpathparser'
 
 class Object
+  # provides a unified +clone+ operation, for REXML::XPathParser
+  # to use across multiple Object types
   def dclone
     clone
   end
 end
 class Symbol
+  # provides a unified +clone+ operation, for REXML::XPathParser
+  # to use across multiple Object types
   def dclone ; self ; end
 end
 class Fixnum
+  # provides a unified +clone+ operation, for REXML::XPathParser
+  # to use across multiple Object types
   def dclone ; self ; end
 end
 class Float
+  # provides a unified +clone+ operation, for REXML::XPathParser
+  # to use across multiple Object types
   def dclone ; self ; end
 end
 class Array
+  # provides a unified +clone+ operation, for REXML::XPathParser
+  # to use across multiple Object+ types
   def dclone
     klone = self.clone
     klone.clear