diff options
Diffstat (limited to 'activesupport/lib/active_support/callbacks.rb')
| -rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index 85b7669353..2cffa342ef 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -94,6 +94,15 @@ module ActiveSupport def halted_callback_hook(filter) end + module Conditionals # :nodoc: + class Value + def initialize(&block) + @block = block + end + def call(target, value); @block.call(value); end + end + end + module Filters Environment = Struct.new(:target, :halted, :value, :run_block) @@ -403,8 +412,8 @@ module ActiveSupport # the same after this point: # # Symbols:: Already methods. - # Strings:: class_eval'ed into methods. - # Procs:: define_method'ed into methods. + # Strings:: class_eval'd into methods. + # Procs:: using define_method compiled into methods. # Objects:: # a method is created that calls the before_foo method # on the object. @@ -415,6 +424,7 @@ module ActiveSupport when String l = eval "lambda { |value| #{filter} }" lambda { |target, value| target.instance_exec(value, &l) } + when Conditionals::Value then filter when ::Proc if filter.arity > 1 return lambda { |target, _, &block| @@ -648,7 +658,7 @@ module ActiveSupport # # * <tt>:terminator</tt> - Determines when a before filter will halt the # callback chain, preventing following callbacks from being called and - # the event from being triggered. This is a string to be eval'ed. The + # the event from being triggered. This is a string to be eval'd. The # result of the callback is available in the +result+ variable. # # define_callbacks :validate, terminator: 'result == false' |