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comp.lang.ruby

translate to ObjectSpace? (Ruby/Smalltalk

Giles Bowkett

10/15/2007 6:33:00 PM

Here's a cool Smalltalk code snippet:

(Smalltalk allClasses
select:[:each | each category beginsWith: 'Todo-'])
inject: 0 into: [:sum :each | sum + each linesOfCode]

It comes from a blog:

http://blog.teksol.info/2007/10/15/todoapp-on-seaside-in...

What it does is grep the Smalltalk equivalent of ObjectSpace for code
in the author's application. It's pretty easy to do because Smalltalk
objects have categories, and the app uses a simple convention where
everything in it is in a Todo-Xyz category.

Anyway, having grabbed each object, it then sums all the lines of code.

Is this possible in Ruby? I think you'd have to graft something onto Object:

class Object
def lines_of_code
File.open("directory_where_all_my_ruby_stuff_will_be/#{self.name}").lines
end
end

Obviously this is pseudocode. Obviously it also depends on a
"convention over configuration" situation, where you can predictably
locate your files. But is it possible? Any ideas for an elegant
implementation?

--
Giles Bowkett

Blog: http://gilesbowkett.bl...
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