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instance method
Gem::Specification#cache_file
cache_file
lib/rubygems/specification.rb
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# File tmp/rubies/ruby-3.1.3/lib/rubygems/specification.rb, line 1661
def cache_file
@cache_file ||= File.join cache_dir, "#{full_name}.gem"
end
Returns the full path to the cached gem for this spec.