On 01.02.2014 17:31, Bozhidar Batsov wrote:

Variables can’t end with ?, so

block_given? is always clear. Same goes for exit!. Pretty sure no one

will ever name a var __xxx__.

Good points.

`binding` & `caller` seem the most likely

names in the list to cause a problem like `format`, since they’d be good

variable names (at least in code making use of metaprogramming).

Still not very likely, though (e.g. compared to `format`, which is in

every other Rails tutorial). And anyone doing metaprogramming should be

aware of these two, and would probably name their vars differently.

I have a patch ready, but here's what I'm not sure about: if the

built-in method that requires arguments is followed by (maybe whitespace

and) newline, do we highlight it?

If yes, we'll have false positives when a local variable with that name

is at a line by itself, maybe on the last line of a method, so that its

value is returned.

If no, any such built-in won't be highlighted until the user types in

the first argument, which is also suboptimal (if I made a typo, I'll

have to go back a longer distance).