diff options
| -rw-r--r-- | tool/lib/envutil.rb | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tool/lib/envutil.rb b/tool/lib/envutil.rb index 63e23ba957..937e1128a6 100644 --- a/tool/lib/envutil.rb +++ b/tool/lib/envutil.rb @@ -53,7 +53,7 @@ module EnvUtil @original_internal_encoding = Encoding.default_internal @original_external_encoding = Encoding.default_external @original_verbose = $VERBOSE - @original_warning = %i[deprecated experimental].to_h {|i| [i, Warning[i]]} if RUBY_VERSION > "2.7" + @original_warning = defined?(Warning.[]) ? %i[deprecated experimental].to_h {|i| [i, Warning[i]]} : nil end end @@ -211,7 +211,7 @@ module EnvUtil ensure stderr, $stderr = $stderr, stderr $VERBOSE = EnvUtil.original_verbose - EnvUtil.original_warning.each {|i, v| Warning[i] = v} + EnvUtil.original_warning&.each {|i, v| Warning[i] = v} end module_function :verbose_warning |