diff options
| author | Xu Cheng | 2015-08-06 17:20:02 +0800 |
|---|---|---|
| committer | Xu Cheng | 2015-08-06 22:33:46 +0800 |
| commit | 7c72b0c68a8ee4dfe3d5b5b922d21519c584a3bf (patch) | |
| tree | f6150695b3416cff4beeddc5ae4f90884b713ebd /Library/Homebrew/extend | |
| parent | ae0e270727cdd38d0c8b4ed2062f944a8596c6ea (diff) | |
| download | brew-7c72b0c68a8ee4dfe3d5b5b922d21519c584a3bf.tar.bz2 | |
backport flat_map for Ruby 1.8
Code is copied from
https://github.com/marcandre/backports/blob/master/lib/backports/1.9.2/enumerable/flat_map.rb
(MIT License by Marc-Andre Lafortune)
Closes Homebrew/homebrew#42543.
Signed-off-by: Xu Cheng <xucheng@me.com>
Diffstat (limited to 'Library/Homebrew/extend')
| -rw-r--r-- | Library/Homebrew/extend/enumerable.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Library/Homebrew/extend/enumerable.rb b/Library/Homebrew/extend/enumerable.rb new file mode 100644 index 000000000..fededbfca --- /dev/null +++ b/Library/Homebrew/extend/enumerable.rb @@ -0,0 +1,11 @@ +module Enumerable + def flat_map + return to_enum(:flat_map) unless block_given? + r = [] + each do |*args| + result = yield(*args) + result.respond_to?(:to_ary) ? r.concat(result) : r.push(result) + end + r + end unless method_defined?(:flat_map) +end |