The way to lint a script (that is, to only check its syntax) is to do "ruby -c". But I see in several places on the net that people use "ruby -wc". I always thought "-w" was for run-time warnings, not for compile-time ones. Can anybody give me an example for a Ruby code for which "ruby -wc" gives different output than "ruby -c"?  https://github.com/SublimeLinter/SublimeLinter/blo...  http://stackoverflow.com/questions/1302595/ruby-sy...
on 2013-11-13 13:42
on 2013-11-13 17:23
On 11/13/2013 04:42 AM, Albert Schlef wrote: > > >  > https://github.com/SublimeLinter/SublimeLinter/blo... >  > http://stackoverflow.com/questions/1302595/ruby-sy... > $ cat test.rb x = 1 $ ruby -c test.rb Syntax OK $ ruby -w -c test.rb test.rb:1: warning: assigned but unused variable - x Syntax OK $ ruby -v ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux]
on 2013-11-14 03:29
Funny, I was just today trying to figure out how to check for syntax warnings within ruby, when I saw this PR https://github.com/makaroni4/sandi_meter/pull/29/f... about checking for warnings in JRuby. So far, it looks like all tools are just shelling out to the ruby executable. I looked through the Ruby source code but didn't find where these checks are done. I found it in Rubinius, but that doesn't really help in the general case.