* 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

4 files changed, 30 insertions, 0 deletions

diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 260875f732..2d1fbf0ac3 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -1013,6 +1013,10 @@ SRC
   end
 end
 
+# Returns whether or not the static type +type+ is defined.
+#
+# See also +have_type+
+#
 def try_type(type, headers = nil, opt = "", &b)
   if try_compile(<<"SRC", opt, &b)
 #{cpp_include(headers)}
@@ -1066,6 +1070,10 @@ def find_type(type, opt, *headers, &b)
   end
 end
 
+# Returns whether or not the Constant +const+ is defined.
+#
+# See also +have_const+
+#
 def try_const(const, headers = nil, opt = "", &b)
   const, type = *const
   if try_compile(<<"SRC", opt, &b)
@@ -1730,6 +1738,8 @@ preload = #{defined?($preload) && $preload ? $preload.join(' ') : ''}
 end
 # :startdoc:
 
+# creates a stub Makefile.
+#
 def dummy_makefile(srcdir)
   configuration(srcdir) << <<RULES << CLEANINGS
 CLEANFILES = #{$cleanfiles.join(' ')}
@@ -1742,6 +1752,11 @@ all install static install-so install-rb: Makefile
 RULES
 end
 
+# Processes the data contents of the "depend" file.
+# Each line of this file is expected to be a file name.
+# 
+# Returns the output of findings, in Makefile format.
+#
 def depend_rules(depend)
   suffixes = []
   depout = []
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