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author | Tadas Tamošauskas <tadastoo@yahoo.com> | 2011-11-26 23:51:09 +0000 |
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committer | Tadas Tamošauskas <tadastoo@yahoo.com> | 2011-11-26 23:51:09 +0000 |
commit | ebf69ab1636df74c76332c53bcd3d8494fb91b45 (patch) | |
tree | 6c6248d4871af14bb5adcc7447d589de4cf0d14b /activesupport/lib/active_support/core_ext/object | |
parent | 4cdd44e3e0e22742a6e0ddc67c388cee0c8c13db (diff) | |
download | rails-ebf69ab1636df74c76332c53bcd3d8494fb91b45.tar.gz rails-ebf69ab1636df74c76332c53bcd3d8494fb91b45.tar.bz2 rails-ebf69ab1636df74c76332c53bcd3d8494fb91b45.zip |
Object#in? also accepts multiple parameters
Diffstat (limited to 'activesupport/lib/active_support/core_ext/object')
-rw-r--r-- | activesupport/lib/active_support/core_ext/object/inclusion.rb | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/inclusion.rb b/activesupport/lib/active_support/core_ext/object/inclusion.rb index b5671f66d0..f611cdd606 100644 --- a/activesupport/lib/active_support/core_ext/object/inclusion.rb +++ b/activesupport/lib/active_support/core_ext/object/inclusion.rb @@ -1,15 +1,25 @@ class Object - # Returns true if this object is included in the argument. Argument must be - # any object which responds to +#include?+. Usage: + # Returns true if this object is included in the argument(s). Argument must be + # any object which responds to +#include?+ or optionally, multiple arguments can be passed in. Usage: # # characters = ["Konata", "Kagami", "Tsukasa"] # "Konata".in?(characters) # => true + # + # character = "Konata" + # character.in?("Konata", "Kagami", "Tsukasa") # => true # - # This will throw an ArgumentError if the argument doesn't respond + # This will throw an ArgumentError if a single argument is passed in and it doesn't respond # to +#include?+. - def in?(another_object) - another_object.include?(self) - rescue NoMethodError - raise ArgumentError.new("The parameter passed to #in? must respond to #include?") + def in?(*args) + if args.length > 1 + args.include? self + else + another_object = args.first + if another_object.respond_to? :include? + another_object.include? self + else + raise ArgumentError.new("The single parameter passed to #in? must respond to #include?") + end + end end end |