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author | Gonçalo Silva <goncalossilva@gmail.com> | 2011-04-17 17:08:49 +0100 |
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committer | Gonçalo Silva <goncalossilva@gmail.com> | 2011-04-17 17:08:49 +0100 |
commit | 1c2b2233c3a7ec76c0a0eddf5b8be45c489be133 (patch) | |
tree | 56f2b767c3a4f1f14c51606bf2cbb714a98c5f89 /activesupport/lib/active_support/core_ext/object/inclusion.rb | |
parent | 8d558cb1b069410c8f693295c9c4e2ffc9661e06 (diff) | |
parent | b6843f22ac42b503f6b8ac00105ca0679049be7d (diff) | |
download | rails-1c2b2233c3a7ec76c0a0eddf5b8be45c489be133.tar.gz rails-1c2b2233c3a7ec76c0a0eddf5b8be45c489be133.tar.bz2 rails-1c2b2233c3a7ec76c0a0eddf5b8be45c489be133.zip |
Merge branch 'master' of https://github.com/rails/rails into performance_test
Diffstat (limited to 'activesupport/lib/active_support/core_ext/object/inclusion.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/object/inclusion.rb | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/inclusion.rb b/activesupport/lib/active_support/core_ext/object/inclusion.rb new file mode 100644 index 0000000000..51cfc62f2b --- /dev/null +++ b/activesupport/lib/active_support/core_ext/object/inclusion.rb @@ -0,0 +1,15 @@ +class Object + # Returns true if this object is included in the argument. Argument must be + # any object which respond to +#include?+. Usage: + # + # characters = ["Konata", "Kagami", "Tsukasa"] + # "Konata".in?(characters) # => true + # + # This will throw an ArgumentError if the supplied argument doesnt not 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?") + end +end |