Suppress deprecated warning by Object#=~ since ruby 2.6 #129
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In
Temple::Mixins::GrammerDSL::Value#Rule
, call=~
method toClass
class then that causes a warning message.This behavior introduced from ruby 2.6 with
-W
option.(And ruby 2.7 always show a warning message)
https://bugs.ruby-lang.org/issues/15231
ruby/ruby@ebff9dc10
Therefore if "elem" isClass
class, skip calling=~
method.Therefore use case-when-else clause to avoid warning.