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author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2019-12-24 11:14:13 +0900 |
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committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2019-12-24 11:14:16 +0900 |
commit | 5a62fb1277fb351a1a11b89b0f8510c8f1a0cdff (patch) | |
tree | 928cab2ef69e9db5d8d333d2c8d0188978f55368 /NEWS | |
parent | f2e1e6cba451375d8eb839bf2e7c9a39bccc044c (diff) |
Mentioned `-W:` command option in NEWS [ci skip]
Diffstat (limited to 'NEWS')
-rw-r--r-- | NEWS | 26 |
1 files changed, 25 insertions, 1 deletions
@@ -236,6 +236,30 @@ sufficient information, see the ChangeLog file or Redmine * 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) Array:: @@ -504,7 +528,7 @@ Warning:: New methods:: * 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:: |