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Mentioned -W: command option in NEWS [ci skip]

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Nobuyoshi Nakada 2019-12-24 11:14:13 +09:00
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26
NEWS
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@ -236,6 +236,30 @@ sufficient information, see the ChangeLog file or Redmine
* Refinements take place at Object#method and Module#instance_method. [Feature #15373] * Refinements take place at Object#method and Module#instance_method. [Feature #15373]
* Command line option +-W+ has been extended with a following +:+, to manage categorized
warnings. [Feature #16345] [Feature #16420]
# deprecation warning
$ ruby -e '$; = ""'
-e:1: warning: `$;' is deprecated
# suppress the deprecation warning
$ ruby -W:no-deprecated -e '$; = //'
# works with RUBYOPT environment variable
$ RUBYOPT=-W:no-deprecated ruby -e '$; = //'
# experimental feature warning
$ ruby -e '0 in a'
-e:1: warning: Pattern matching is experimental, and the behavior may change in future versions of Ruby!
# suppress experimental feature warning
$ ruby -W:no-experimental -e '0 in a'
# suppress both by using RUBYOPT
$ RUBYOPT='-W:no-deprecated -W:no-experimental' ruby -e '($; = "") in a'
=== Core classes updates (outstanding ones only) === Core classes updates (outstanding ones only)
Array:: Array::
@ -504,7 +528,7 @@ Warning::
New methods:: New methods::
* Added Warning.[] and Warning.[]= to manage emit/suppress of * Added Warning.[] and Warning.[]= to manage emit/suppress of
some categories of warnings. [Feature #16345] some categories of warnings. [Feature #16345] [Feature #16420]
$LOAD_PATH:: $LOAD_PATH::