Rails core - Aug 2006 - ActionMailer causes a SystemStackError looks like a bug.

Hi,

I''ve tried twice on the rails user list with no help, and I''ve
tried asking
on the IRC channels.  I still haven''t figured this one out so
that''s why I''m
here.  I know this list is mainly for developer type questions, but
unfortunately all other channels have failed me.  I''m running the
latest
1.1.6 rails, actionmailer 1.2.5, on windows XP, ruby 1.8.4.

Here is my problem.  Whenever I try to send an email I get a
SystemStackError saying stack level too deep.  Here is the exception
trace:

D:/dev/ruby/lib/ruby/gems/1.8/gems/actionmailer-1.2.5/lib/action_mailer/helpers.rb:96:in
`inherited_without_helper''
D:/dev/ruby/lib/ruby/gems/1.8/gems/actionmailer-1.2.5/lib/action_mailer/helpers.rb:96:in
`inherited''
#{RAILS_ROOT}/app/models/notifications.rb:1
#{RAILS_ROOT}/app/models/user.rb:52:in `send_new_password''
#{RAILS_ROOT}/app/controllers/user_controller.rb:42:in
`forgot_password''

My class is the Notifications.rb class you see in the stack at line one.
So this is happening when it tries to load the ruby file.  So I opened
helpers.rb in ActionMailer and I found the following:

Line 95: helpers.rb: ActionMailer 1.2.5
---------------------------------------
def inherited_with_helper(child)
  inherited_without_helper(child)
  begin
    child.master_helper_module = Module.new
    child.master_helper_module.send :include, master_helper_module
    child.helper child.name.underscore
  rescue MissingSourceFile => e
    raise unless
e.is_missing?("helpers/#{child.name.underscore}_helper")
  end
end

The first line of this method is inherited_without_helper, but when I
searched for this method I found that it was an alias for the same
method.  Here is where I found inherited_without_helper being aliased
for inherited_with_helper:

Line 15: helpers.rb: ActionMailer 1.2.5
---------------------------------------
class << self
  alias_method :inherited_without_helper, :inherited
  alias_method :inherited, :inherited_with_helper
end

Notice it''s defining inherited_without_helper to be
inherited_with_helper so a call to inherited_without_helper is the same
as calling inherited_with_helper!  Hence the infinite loop.  So I
started to just define this method in my class since it looks like it
doesn''t do anything.  Then I ran into another issue that looks like the
same problem.

Line 109: helpers.rb: ActionMailer 1.2.5
----------------------------------------
def initialize_template_class_with_helper(assigns)
  returning(template initialize_template_class_without_helper(assigns)) do
    template.extend self.class.master_helper_module
  end
end

Line 22:
--------
alias_method :initialize_template_class_without_helper,
:initialize_template_class
alias_method :initialize_template_class,
:initialize_template_class_with_helper


This one however, I can''t find and I don''t know what it is
supposed to
do.  Clearly it does something since it returns a template and does
something with a block, but I can''t find it defined anywhere.  Looking
at this code I''m not sure how this would ever work.  I don''t
know where
else to go.  Please help I''m totally stuck.  I''m lost and in
need of
someone who understands what this code is trying to do.

Charlie


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