RIS 1.x : breakpoint interferes with console interaction

[amiracam]

Please see here:

http://screencast.com/t/uGGkgg4vLN2

I'm simply trying to step thru the code in the book of ruby ch13, copy_files.rb

I've put a breakpoint right after a puts and a subsequent gets , however when I start with debugging it seems to bypass the puts and gets i.e. I am not prompted. The code btw , runs fine outside of the debugger i..e. start without debugging

tia

[amiracam]

to further clarify , the step into and step over menu items are disabled once I enter "start debugging"

[Huw Collingbourne]

It sounds like there may be an argument which is being read in by gets() (so it won't stop to read from the  prompt - this is an odd curiosity of gets).

When stopped at the breakpoint, hover over the sourcedir variable (or use the Watch window). What is its value?

You may also try repeating the gets line - i.e.

Code:

sourcedir = gets().chomp()
sourcedir = gets().chomp()

If it has read a commandline arg the first time it should stop for more input the second time. If that's the case the next thing to do is work out why you have extra args. You may want to check the Project properties to see if there is anything set there.

Huw

[amiracam]

see here for sourceDir value:

http://screencast.com/t/u1jFPnIe2dEz

basically it looks unset

[Huw Collingbourne]

Your breakpoint is not being hit. Are you using one of the ruby interpreters that Cylon supports for debugging?

[amiracam]

1.86 ? i.e. rubyinstaller-1.8.6-p398.exe , I thought that was ok with Ris 1.x, I'll go check out your spec sheet again

[Huw Collingbourne]

You need to use one of the versions linked here:

http://www.sapphiresteel.com/Products/Ruby-In-Steel/article/ruby-in-steel-prerequisites

Even if it has the same number, if it's been recompiled with a different C interpreter it will not work.

[amiracam]

sigh ... I miss Smalltalk , yes indeed that version does work, thanks much

[Huw Collingbourne]

I'm afraid you won't rediscover Smalltalk in Ruby. Smalltalk was a one-off. Its influence has spread wide but its elegance has not 

[amiracam]

I think I'm sort of passed the language thing, sure its not Smalltalk there either in elegance nor ease, but I guess my biggest issues are still how the IDE's work. So far you all are the most promising. RubyMine for example is such a cow. Hope you all keep it up. In particular if you could do message highlighting in the debugger that would be huge, partial evaluation of code would be great too i.e. within the debugger. I already mentioned that I think its a defect not to provide at least static level senders and implementors, one should be able to just double click on a method token and ask where its being referenced and implemented. Huge productivity gains.

thanks

[Dermot]

We thought about 'Find all references' for Ruby, but decided that it wasn't really worth it. To do it effectively, you really do need to know what everything is and where it is referenced. It's very difficult (impossible, I'd say) to do this for Ruby. You're probably better off just doing a search or a grep. The one place you really want to do this is Rails, but there's so much meta-programming in there that it makes a real 'Find All References' meaningless, really.

Doing it isn't a problem (we've done it for ActionScript in Amethyst - and it's accurate) - but the information just isn't there in Ruby to give a good enough coverage.

Dermot