instance method
Gem::Resolver::IndexSpecification#required_ruby_version
required_ruby_version
lib/rubygems/resolver/index_specification.rb
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# File tmp/rubies/ruby-4.0.0/lib/rubygems/resolver/index_specification.rb, line 44
def required_ruby_version
spec.required_ruby_version || Gem::Requirement.default
end
The required_ruby_version constraint for this specification
A fallback is included because when generated, some marshalled specs have it set to nil.