From 9efca53908c09b7f188183aec6c0a4a2df347316 Mon Sep 17 00:00:00 2001
From: Nicholas Seckar <nseckar@gmail.com>
Date: Mon, 27 Mar 2006 05:13:46 +0000
Subject: Dependencies cleanup. Fixes #4221.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4060 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 activesupport/lib/active_support/core_ext/module.rb |  4 +++-
 .../active_support/core_ext/module/introspection.rb | 21 +++++++++++++++++++++
 .../lib/active_support/core_ext/module/loading.rb   | 13 +++++++++++++
 3 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 activesupport/lib/active_support/core_ext/module/introspection.rb
 create mode 100644 activesupport/lib/active_support/core_ext/module/loading.rb

(limited to 'activesupport/lib/active_support/core_ext')

diff --git a/activesupport/lib/active_support/core_ext/module.rb b/activesupport/lib/active_support/core_ext/module.rb
index bd6d62468a..e67cf940f6 100644
--- a/activesupport/lib/active_support/core_ext/module.rb
+++ b/activesupport/lib/active_support/core_ext/module.rb
@@ -1,3 +1,5 @@
 require File.dirname(__FILE__) + '/module/inclusion'
 require File.dirname(__FILE__) + '/module/attribute_accessors'
-require File.dirname(__FILE__) + '/module/delegation'
\ No newline at end of file
+require File.dirname(__FILE__) + '/module/delegation'
+require File.dirname(__FILE__) + '/module/introspection'
+require File.dirname(__FILE__) + '/module/loading'
diff --git a/activesupport/lib/active_support/core_ext/module/introspection.rb b/activesupport/lib/active_support/core_ext/module/introspection.rb
new file mode 100644
index 0000000000..0cd0d1ff2c
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/module/introspection.rb
@@ -0,0 +1,21 @@
+class Module
+  # Return the module which contains this one; if this is a root module, such as
+  # +::MyModule+, then Object is returned.
+  def parent
+    parent_name = name.split('::')[0..-2] * '::'
+    parent_name.empty? ? Object : parent_name.constantize
+  end
+  
+  # Return all the parents of this module, ordered from nested outwards. The
+  # receiver is not contained within the result.
+  def parents
+    parents = []
+    parts = name.split('::')[0..-2]
+    until parts.empty?
+      parents << (parts * '::').constantize
+      parts.pop
+    end
+    parents << Object unless parents.include? Object
+    parents
+  end
+end
diff --git a/activesupport/lib/active_support/core_ext/module/loading.rb b/activesupport/lib/active_support/core_ext/module/loading.rb
new file mode 100644
index 0000000000..36c0c61405
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/module/loading.rb
@@ -0,0 +1,13 @@
+class Module
+  def as_load_path
+    if self == Object || self == Kernel
+      ''
+    elsif is_a? Class
+      parent == self ? '' : parent.as_load_path
+    else
+      name.split('::').collect do |word|
+        word.underscore
+      end * '/'
+    end
+  end
+end
\ No newline at end of file
-- 
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