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authorDavid Heinemeier Hansson <david@loudthinking.com>2006-04-02 16:28:30 +0000
committerDavid Heinemeier Hansson <david@loudthinking.com>2006-04-02 16:28:30 +0000
commit484e1c65d8710faeb9f08d33898dc329683b4dab (patch)
treed93a6a07affcc792f9ccbd45f826f00e8b2ef68b /activesupport
parent1fcc60895b9fa9d969649dca46b861fa38263b90 (diff)
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Added docs for to_proc
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4132 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activesupport')
-rw-r--r--activesupport/lib/active_support/core_ext/symbol.rb9
1 files changed, 8 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/core_ext/symbol.rb b/activesupport/lib/active_support/core_ext/symbol.rb
index cd928aae80..434d6abdbb 100644
--- a/activesupport/lib/active_support/core_ext/symbol.rb
+++ b/activesupport/lib/active_support/core_ext/symbol.rb
@@ -1,4 +1,11 @@
-class Symbol #:nodoc:
+class Symbol
+ # Turns the symbol into a simpel proc, which is especially useful for enumerations. Examples:
+ #
+ # # The same as people.collect { |p| p.name }
+ # people.collect(&:name)
+ #
+ # # The same as people.select { |p| p.manager? }.collect { |p| p.salary }
+ # people.select(&:manager?).collect(&:salary)
def to_proc
Proc.new { |obj, *args| obj.send(self, *args) }
end