diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/enumerable.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/enumerable.rb | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/enumerable.rb b/activesupport/lib/active_support/core_ext/enumerable.rb index 8a74ad4d66..f297214d0f 100644 --- a/activesupport/lib/active_support/core_ext/enumerable.rb +++ b/activesupport/lib/active_support/core_ext/enumerable.rb @@ -104,3 +104,17 @@ class Range #:nodoc: end end end + +# Array#sum was added in Ruby 2.4 but it only works with Numeric elements. +# +# We tried shimming it to attempt the fast native method, rescue TypeError, +# and fall back to the compatible implementation, but that's much slower than +# just calling the compat method in the first place. +if Array.instance_methods(false).include?(:sum) && (%w[a].sum rescue true) + class Array + def sum(*args) #:nodoc: + # Use Enumerable#sum instead. + super + end + end +end |