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A comment on Types as Interfaces. Parent comment

Re:Types as Interfaces by kqr on Tuesday July 23, 2024 @09:04AM (#41045554)
But these are only promised to be checked at runtime, even though the compiler can sometimes hint at things earlier.
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Re:Types as Interfaces by docandrew on Tuesday July 23, 2024 @09:13AM (#41045646)
With SPARK mode you can check them at compile-time with provers and elide the runtime checks. You can do _very_ sophisticated type predicates this way.
[ Parent | on HN ]