# File rbs-1.4.0/lib/rbs/errors.rb, line 92
def self.check!(type_name, env:, location:)
dic = case
when type_name.class?
env.class_decls
when type_name.alias?
env.alias_decls
when type_name.interface?
env.interface_decls
else
raise
end
dic.key?(type_name) or raise new(type_name: type_name, location: location)
type_name
end