Parametric languages address this by allowing functions to take additional parameters that add information known at compile time. This is the essence of Haskell's type classes, Rust's traits, and Scala's implicits. In such a language we can define different representations associated with types: a bitset representation for unsigned integers, and some other representation for other types. This solves the problem of allowing different behaviour per type—so-called ad hoc polymorphism—while maintaining parametricity: this additional information is still conceptually a function parameter and present in the function signature.
IntoWasmAbi Types
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-- 1. id : α → α (infer: x has fresh type α, body is x),更多细节参见wps
returns millions of matches that must be checked against the filter and sorted.