From: shibata.hiroshi@...
Date: 2014-08-13T02:19:58+00:00
Subject: [ruby-core:64343] [ruby-trunk - Bug #9063] [Closed] irb crashes when #backtrace of raised Exception is nil

Issue #9063 has been updated by Hiroshi SHIBATA.

Status changed from Assigned to Closed
% Done changed from 0 to 100

Applied in changeset r47164.

----------
* lib/irb.rb: Prevent irb from crashing when exception with
  nil backtrace is raised.
  [fix GH-434][ruby-core:58078][Bug #9063]
* test/irb/test_raise_no_backtrace_exception.rb: ditto.

----------------------------------------
Bug #9063: irb crashes when #backtrace of raised Exception is nil
https://bugs.ruby-lang.org/issues/9063#change-48323

* Author: Shimpei Makimoto
* Status: Closed
* Priority: Normal
* Assignee: Keiju Ishitsuka
* Category: 
* Target version: 
* ruby -v: ruby 2.1.0dev (2013-10-30 trunk 43474) [x86_64-darwin13.0.0]
* Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN
----------------------------------------
=begin
See also the pull req on GitHub: https://github.com/ruby/ruby/pull/434

When an exception whose backtrace is nil is raised, irb crashes and exits with the following backtrace:

 irb> class E < Exception; def backtrace; nil; end; end
 irb> raise E
 E: E
 /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb.rb:502:in `block (2 levels) in eval_input': undefined method `[]' for nil:NilClass (NoMethodError)
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb.rb:624:in `signal_status'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb.rb:489:in `block in eval_input'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb/ruby-lex.rb:247:in `block (2 levels) in each_top_level_statement'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb/ruby-lex.rb:233:in `loop'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb/ruby-lex.rb:233:in `block in each_top_level_statement'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb/ruby-lex.rb:232:in `catch'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb/ruby-lex.rb:232:in `each_top_level_statement'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb.rb:488:in `eval_input'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb.rb:397:in `block in start'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb.rb:396:in `catch'
   from /Users/makimoto/.rbenv/versions/trunk/lib/ruby/2.1.0/irb.rb:396:in `start'
   from /Users/makimoto/.rbenv/versions/trunk/bin/irb:11:in `<main>'

=end

---Files--------------------------------
irb-when-backtrace-nil.patch (2.91 KB)


-- 
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