[MacRuby-devel] Setting Breakpoints/Debugger

[Eloy Duran]

I had a little play with IRB. With some “easy” workarounds, plain Ruby  
at least, I was able to get IRB in the right context. However, on  
MacRuby (at least on 0.5), this doesn't work completely, as the  
binding of a proc returns the wrong context:

% ruby -e "class Foo; def initialize; p eval('self', (proc  
{}).binding); end; end; Foo.new"
#<Foo:0x29324>

% ruby19 -e "class Foo; def initialize; p eval('self', (proc  
{}).binding); end; end; Foo.new"
#<Foo:0x3e7178>

% ./miniruby -e "class Foo; def initialize; p eval('self', (proc  
{}).binding); end; end; Foo.new"
#<Proc:0x80004dfa0>

Anyways, the ccode is at: http://gist.github.com/131803
I haven't had any experience with IRB before, so I'm probably doing  
some things wrong, but this was just some napkin code. Maybe Vincent  
knows better how to get the right context setup and make exit/quit  
work as continue.

Cheers,
Eloy

On Jun 18, 2009, at 10:50 AM, Matt Aimonetti wrote:

> HotConsole: http://github.com/vincentisambart/hotconsole/tree/master
>
> It's indeed a bit like script/console or merb -i
>
> If HotConsole can be loaded when you run your app in "dev" mode, you  
> could easily introspect and interact with your code. Unfortunately,  
> that wouldn't give you breakpoints and you couldn't step through a  
> method call. But I believe Laurent has a plan for that. (he also has  
> plenty of plans;) )
>
> - Matt
>
>
> On Thu, Jun 18, 2009 at 1:35 AM, Paul Howson <paul- 
> lists at tdgq.com.au> wrote:
> On 18/06/2009, at 5:47 PM, Matt Aimonetti wrote:
>
> Not being able to use ruby debug in MacRuby is something that used  
> to really bother me at first. I'm thinking about maybe hacking  
> hotconsole so you could run it in the context of your app. That  
> would obviously not be as nice a real debugger but that might be cool.
>
> I'm not familiar with hotconsole. Would that be something like  
> script/console in Rails? That would be useful.
>
> Also, thanks Eloy for your response. Good points.
>
> Paul
>
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