diff options
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_controller/metal/strong_parameters.rb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb index 55954d0f37..c3c3e4c4f1 100644 --- a/actionpack/lib/action_controller/metal/strong_parameters.rb +++ b/actionpack/lib/action_controller/metal/strong_parameters.rb @@ -129,6 +129,10 @@ module ActionController # Attribute that keeps track of converted arrays, if any, to avoid double # looping in the common use case permit + mass-assignment. Defined in a # method to instantiate it only if needed. + # + # Testing membership still loops, but it's going to be faster than our own + # loop that converts values. Also, we are not going to build a new array + # object per fetch. def converted_arrays @converted_arrays ||= Set.new end |