Re: [MacRuby] #860: Assertion fails in pop_current_exception when catch/throw used in rescue

23 Aug 2010

      #860: Assertion fails in pop_current_exception when catch/throw used in rescue
----------------------------------+-----------------------------------------
 Reporter:  watson1978@…          |       Owner:  lsansonetti@…        
     Type:  defect                |      Status:  new                  
 Priority:  blocker               |   Milestone:                       
Component:  MacRuby               |    Keywords:                       
----------------------------------+-----------------------------------------
Description changed by lsansonetti@…:

Old description:
...
{{{
#!ruby
$ cat test_catch_throw.rb
begin
  raise
rescue
  catch(:ambiguous) { throw :ambiguous }
  p :ok
end
}}}
Result of Ruby 1.9.1:
{{{
$ ruby test_catch_throw.rb
:ok
}}}
Result of MacRuby Trunk:
{{{
$ macruby test_catch_throw.rb
Assertion failed: ((size_t)pos < current_exceptions.size()), function
pop_current_exception, file vm.cpp, line 3343.
zsh: abort      macruby test_opt.rb
}}}+
Original report (involving optparse) which was deleted:
{{{
$ cat test_opt.rb
require 'optparse'
opt = OptionParser.new
flag = self.class
opt.def_option("--open") {|x|}
opt.def_option("-x") {|x| flag = x}
opt.def_option("--option") {|x| flag = x}
begin
  opt.parse!(%w"--op")
rescue => e
  p e
end
begin
  opt.parse!(%w"-o")
rescue => e
  p e
end
}}}
Result of Ruby 1.9.1:
{{{
$ ruby test_opt.rb
#<OptionParser::AmbiguousOption: --op>
#<OptionParser::AmbiguousOption: -o>
}}}
Result of MacRuby Trunk:
{{{
$ macruby test_opt.rb
#<OptionParser::AmbiguousOption: --op>
Assertion failed: ((size_t)pos < current_exceptions.size()), function
pop_current_exception, file vm.cpp, line 3343.
zsh: abort      macruby test_opt.rb
}}}
New description:

 {{{
 #!ruby
 $ cat test_catch_throw.rb
 begin
   raise
 rescue
   catch(:ambiguous) { throw :ambiguous }
   p :ok
 end
 }}}

 Result of Ruby 1.9.1:
 {{{
 $ ruby test_catch_throw.rb
 :ok
 }}}

 Result of MacRuby Trunk:
 {{{
 $ macruby test_catch_throw.rb
 Assertion failed: ((size_t)pos < current_exceptions.size()), function
 pop_current_exception, file vm.cpp, line 3343.
 zsh: abort      macruby test_opt.rb
 }}}

 Original report (involving optparse) which was deleted:

 {{{
 $ cat test_opt.rb
 require 'optparse'

 opt = OptionParser.new
 flag = self.class

 opt.def_option("--open") {|x|}
 opt.def_option("-x") {|x| flag = x}
 opt.def_option("--option") {|x| flag = x}

 begin
   opt.parse!(%w"--op")
 rescue => e
   p e
 end

 begin
   opt.parse!(%w"-o")
 rescue => e
   p e
 end
 }}}

 Result of Ruby 1.9.1:
 {{{
 $ ruby test_opt.rb
 #<OptionParser::AmbiguousOption: --op>
 #<OptionParser::AmbiguousOption: -o>
 }}}

 Result of MacRuby Trunk:
 {{{
 $ macruby test_opt.rb
 #<OptionParser::AmbiguousOption: --op>
 Assertion failed: ((size_t)pos < current_exceptions.size()), function
 pop_current_exception, file vm.cpp, line 3343.
 zsh: abort      macruby test_opt.rb
 }}}

--

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/860#comment:7>
MacRuby <http://macruby.org/>