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mleszcz/solid-3-lsp.rb

Last active May 16, 2018 10:14
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solid-3-lsp.rb
class User
attr_accessor :settings
def active?
@settings[:status] == :active
end
end
class AdminUser < User
end
basic_user = User.new
basic_user.settings = { level: 0xFACE, status: :active }
basic_user.active?
# true
admin_user = AdminUser.new
admin_user.settings = [ 0xCAFE, :active ]
admin_user.active?
# TypeError (no implicit conversion of Symbol into Integer)
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