diff options
Diffstat (limited to 'activesupport/lib')
-rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index ea37355fc1..11069301f1 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -81,6 +81,14 @@ module ActiveSupport send("_run_#{kind}_callbacks", *args, &block) end + private + + # A hook invoked everytime a before callback is halted. + # This can be overriden in AS::Callback implementors in order + # to provide better debugging/logging. + def halted_callback_hook(filter) + end + class Callback #:nodoc:# @@_callback_sequence = 0 @@ -173,12 +181,14 @@ module ActiveSupport # end <<-RUBY_EVAL if !halted && #{@compiled_options} - # This double assignment is to prevent warnings in 1.9.3. I would - # remove the `result` variable, but apparently some other - # generated code is depending on this variable being set sometimes - # and sometimes not. + # This double assignment is to prevent warnings in 1.9.3 as + # the `result` variable is not always used except if the + # terminator code refers to it. result = result = #{@filter} halted = (#{chain.config[:terminator]}) + if halted + halted_callback_hook(#{@raw_filter.inspect.inspect}) + end end RUBY_EVAL when :around |