package ocaml-base-compiler

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Official release 4.12.1

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Dune Dependency

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Authors

Xavier Leroy

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4.12.1.tar.gz

sha256=f5a48a90557cb47ace7b1590fcab1362a1af38629a218350f69c225c57e96a41

doc/ocamlcommon/Type_immediacy/index.html

Module `Type_immediacy`

Immediacy status of a type

type t =

| Unknown
(*
We don't know anything
*)
| Always
(*
We know for sure that values of this type are always immediate
*)
| Always_on_64bits
(*
We know for sure that values of this type are always immediate on 64 bit platforms. For other platforms, we know nothing.
*)

module Violation : sig ... end

val coerce : t -> as_:t -> (unit, Violation.t) result

coerce t ~as_ returns Ok () iff t can be seen as type immediacy as_. For instance, Always can be seen as Always_on_64bits but the opposite is not true. Return Error _ if the coercion is not possible.

val of_attributes : Parsetree.attributes -> t

Return the immediateness of a type as indicated by the user via attributes