[ANN] Ruby Debugging Article at IBM Developerworks

ruby-talk
1

http://www-128.ibm.com/developerworks/edu/os-dw-os-distruby-i.html

The next article is up. (www.bugmenot.com if you don't want to register)

I'm always interested in feedback, if anyone wants to share.

···

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thanks,
-pate
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2

pat eyler wrote:

http://www-128.ibm.com/developerworks/edu/os-dw-os-distruby-i.html

The next article is up. (www.bugmenot.com if you don't want to register)

I'm always interested in feedback, if anyone wants to share.

Hm, no mention at all of ruby-breakpoint? See http://ruby-breakpoint.rubyforge.org/

3

pat eyler wrote:

http://www-128.ibm.com/developerworks/edu/os-dw-os-distruby-i.html

The next article is up. (www.bugmenot.com if you don't want to register)

I'm always interested in feedback, if anyone wants to share.

Something I always want to do is trigger the debugger from the program code.

That is, if I have the source file open in my editor, I'd like to be able to write something like

    trigger_debugger if $DEBUG

at various points in the source, and then run the program with Ruby in debug mode and have the debugger drop open at the right place. Much easier than having to set all the breakpoints manually in the debugger.

I'm fairly sure I once read how to do that, but I've been unable to relocate the information...

Similarly, it would be really useful to be able to start watching variables from the program code.

mathew

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4

$ gem install ruby-breakpoint

  require 'rubygems'
  require 'breakpoint'

  breakpoint if $DEBUG

puts you into an interactive irb session

-Levin

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On 9/6/05, mathew <meta@pobox.com> wrote:

That is, if I have the source file open in my editor, I'd like to be
able to write something like

    trigger_debugger if $DEBUG

5

Levin Alexander wrote:

···

On 9/6/05, mathew <meta@pobox.com> wrote:

That is, if I have the source file open in my editor, I'd like to be
able to write something like

    trigger_debugger if $DEBUG

$ gem install ruby-breakpoint

require 'rubygems'
require 'breakpoint'

breakpoint if $DEBUG

puts you into an interactive irb session

Or, to stop in the debugger, try this:

         defined? DEBUGGER__ and Process.kill("INT",0)