From: Zach Dennis <zdennis@...>
Date: 2005-01-29T03:08:59+09:00
Subject: Re: : How can I find the filename where a class is defined?

Zach Dennis wrote:
>>>> George Moschovitis wrote: 
> 
> 
>>>> My class is defined in one file only. I dont want a general solution. I
>>>> want a solution for classes defined in a single file. Any other ideas?
> 
> 
> I dont' know what kind of performance you are looking for, but if you 
> know the file:
> 
> classes = {}
> File.open( "file.rb" ) do |file|
>   file.each_line do |line|
>     next unless line =~ /\s*class\s*(\w+)/
>     classes[ $1 ] = file.lineno
>   end
> end
> 

If you need it to gooo real fast, we can write a c extension =) and add 
more functions so we don't get charged with being wasteful... The usage 
could be similar to:

RubySourceParser::find_method_decl( "mymethod" )
    =>[[Class1,"file.rb", lineno=1044], [Class2, "file2.rb", lineno=56]]

RubySourceParser::find_method_decl( "Class1", "mymethod" ) => ...etc...

RubySourceParser::find_class_decl( "Class1" ) => ["file1.rb",lineno=10]

RubySourceParser::find_module_decl( "...etc..." )

Perhaps this is overkill, but I am on a ruby high right now, after I 
wrote a mini-library to handle NetworkDrives in Windows. It is a small 
very simple thing, but it makes me sooo happy. Happying Rubying!

Zach