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| author | Xavier Noria <fxn@hashref.com> | 2010-01-18 23:28:14 +0100 |
|---|---|---|
| committer | Xavier Noria <fxn@hashref.com> | 2010-01-18 23:28:14 +0100 |
| commit | cf82ddc96a867e63edc60e5813070a8f7b58fc14 (patch) | |
| tree | 58c27b1dbaecaf06f1ca0d689edc96fe405d3b68 /railties/guides/source/active_support_core_extensions.textile | |
| parent | 9aee3659242766896d7d4727a7db425dcb86ded7 (diff) | |
| download | rails-cf82ddc96a867e63edc60e5813070a8f7b58fc14.tar.gz rails-cf82ddc96a867e63edc60e5813070a8f7b58fc14.tar.bz2 rails-cf82ddc96a867e63edc60e5813070a8f7b58fc14.zip | |
AS guide: documents Object#extended_by
Diffstat (limited to 'railties/guides/source/active_support_core_extensions.textile')
| -rw-r--r-- | railties/guides/source/active_support_core_extensions.textile | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/railties/guides/source/active_support_core_extensions.textile b/railties/guides/source/active_support_core_extensions.textile index f8a72db703..b3c157208c 100644 --- a/railties/guides/source/active_support_core_extensions.textile +++ b/railties/guides/source/active_support_core_extensions.textile @@ -363,6 +363,31 @@ See also +Class#subclasses+ in "Extensions to +Class+ FIXME THIS LINK":FIXME. NOTE: Defined in +active_support/core_ext/object/extending.rb+. +h5. +extended_by+ + +The method +extended_by+ returns an array with the modules that extend the receiver, if any: + +<ruby> +module M +end + +module N2 +end + +module N + include N2 +end + +class C + extend M + extend N +end + +C.extended_by # => [N, N2, M] +</ruby> + +NOTE: Defined in +active_support/core_ext/object/extending.rb+. + h4. Instance Variables Active Support provides several methods to ease access to instance variables. |