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It absolutely is. If LSP describes what it means to be a contravariant functor,...
source link: https://twitter.com/runarorama/status/1425946258234032130
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Rúnar on Twitter: "@mfeathers @ploeh @msuarz @unclebobmartin @marick @martinfowler @KentBeck @tastapod @jessitron @ScottWlaschin It absolutely is. If LSP describes what it means to be a contravariant functor, then Postel’s Law describes a profuctor which is contravariant on one side (the “input” side) and covariant on the other (the “output” side). Profuctorality is a generalization of Postel’s Law."
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