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Nested ML-style patterns are wanted

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Joseph Ferano 2026-09-25 20:31:57 +07:00
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@ -296,6 +296,10 @@ keyword resolves against the expected type and against nothing else, so two enum
could always share a member spelling. What the prefix buys is the call site read
on its own.
** TODO ML-style patterns
Wanted: nested destructuring (data cases, structs, arrays, slices), guards, or-patterns,
literals at any depth, and exhaustiveness checked over the nesting. Needs a design pass.
** NEXT match over numbers and strings
Decided 2026-09-25: a match arm's pattern can be an integer, a float, a char or a
string literal, compared as =(= t lit)=; a match over such a type needs a =_= arm.