[MacRuby-devel] Exception backtraces in instance_eval

[Martijn Walraven]

I've added a ticket (#996) describing the issue. I wish I could do more to help fix it, but I'm afraid I don't know enough about the implementation of the VM.

On Nov 14, 2010, at 15:22 , Matt Aimonetti wrote:

> I believe this is a known issue that needs to be addressed. Can you please check if there is already an open ticket, if not, please open one.
> 
> Thx
> 
> - Matt
> 
> Sent from my iPhone
> 
> On Nov 14, 2010, at 3:05, Martijn Walraven <martijn at martijnwalraven.com> wrote:
> 
>> Hi,
>> 
>> I've looked into the issue some more, and it turns out the backtraces created by MacRuby nightly are much more similar to the 1.9.2 ones. The backtrace still misses the line referring to the actual execution of the spec though, so the problem hasn't been completely solved yet.
>> 
>> It seems this might be related to a lack of file and line information in the example Proc. While Procs in Ruby 1.9.2 know their source location, it seems MacRuby Procs don't.
>> 
>> Ruby 1.9.2:
>> #<Proc:0x00000101487860@/Users/martijnwalraven/Development/Projects/Experimental/iOSTestingSetup/Test/Spec/helloworld_spec.rb:4>
>> MacRuby nightly:
>> #<Proc:0x2003c3420>
>> 
>> Is this a known limitation?
>> 
>> Thanks,
>> 
>> Martijn
>> 
>> RSpec output from MacRuby nightly:
>> 
>> 1) A new HelloWorld object should return the appropriate greeting
>>  Failure/Error: Unable to find matching line from backtrace
>>  expected: "Hello World!",
>>       got: "Hello Earth!" (using ==)
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-expectations-2.1.0/lib/rspec/expectations/fail_with.rb:29:in `fail_with:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-expectations-2.1.0/lib/rspec/matchers/operator_matcher.rb:48:in `fail_with_message:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-expectations-2.1.0/lib/rspec/matchers/operator_matcher.rb:70:in `__delegate_operator:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-expectations-2.1.0/lib/rspec/matchers/operator_matcher.rb:60:in `eval_match:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-expectations-2.1.0/lib/rspec/matchers/operator_matcher.rb:29:in `block'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example.rb:42:in `block'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example.rb:81:in `with_around_hooks'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example.rb:39:in `block'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example.rb:75:in `block'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example.rb:74:in `with_pending_capture'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example.rb:38:in `run:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example_group.rb:261:in `block'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example_group.rb:257:in `run_examples:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/example_group.rb:231:in `run:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/command_line.rb:27:in `block'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/command_line.rb:27:in `block'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/reporter.rb:12:in `report:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/command_line.rb:24:in `run:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/runner.rb:55:in `run_in_process:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/runner.rb:46:in `run:'
>>  # /usr/local/rvm/gems/macruby-nightly at test/gems/rspec-core-2.1.0/lib/rspec/core/runner.rb:10:in `block'
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