I have uploaded a better patch than the original, and also updated the git
branch. My original patch broke callbacks with :before and :around with
:rescuable => true.

Also, quite apart from running :after callbacks when :before callbacks raised
exceptions, it seems there was a general problem with the :rescuable feature
with :around callbacks that resulted from rescued_error being first declared
in a block, and thus undefined at the conditional raise.

def compile(key=nil, object=nil)
  method = []
  method << "value = nil"
  method << "halted = false"

# The :around callback start will result in a method invocation and the
# beginning of a block...
  each do |callback|
    method << callback.start(key, object)
  end

# This causes rescued_error to be local to that block...
  if config[:rescuable]
    method << "rescued_error = nil"
    method << "begin"
  end

  method << "value = yield if block_given? && !halted"

  if config[:rescuable]
    method << "rescue Exception => e"
    method << "rescued_error = e"
    method << "end"
  end

  reverse_each do |callback|
    method << callback.end(key, object)
  end

# and thus undefined at this line
  method << "raise rescued_error if rescued_error" if config[:rescuable]
  method << "halted ? false : (block_given? ? value : true)"
  method.compact.join("\n")
end

This issue has been automatically marked as stale because it has not been commented on for at least three months.

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