Hi, I've noticed that some of the commits to rails edge lately are using a style where instance variables of a class start with a leading underscore.
Like in this commit: http://github.com/rails/rails/commit/8cb594a2e1808cd7d93f3593afed0414016fc56f I see this variable: @_env I'm guessing it's to avoid naming conflicts when the module is included in a class? I don't recall seeing this style in other Ruby libraries (it harkens back to my C++ days), so I'm just wondering if there's a particular purpose behind it; and whether people who look to contribute code should be adopting this style, and in what situations. Thanks, Jeff
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