package coq

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Formal proof management system

Install

dune-project

Dependency

coq.inria.fr Edit opam file Versions (40)

Authors

T

The Coq development team, INRIA, CNRS, and contributors.

Maintainers

C

coqdev@inria.fr

Sources

coq-8.15.0.tar.gz

sha256=73466e61f229b23b4daffdd964be72bd7a110963b9d84bd4a86bb05c5dc19ef3

doc/coq-core.library/Summary/Dyn/index.html

Module `Summary.Dyn`Source

We provide safe projection from the summary to the types stored in it.

type 'a tag

Type of dynamic tags

type t =

| Dyn : 'a tag * 'a -> t
(*
Type of dynamic values
*)

val create : string -> 'a tag

create n returns a tag describing a type called n. create raises an exception if n is already registered. Type names are hashed, so create may raise even if no type with the exact same name was registered due to a collision.

val anonymous : int -> 'a tag

anonymous i returns a tag describing an i-th anonymous type. If anonymous is not used together with create, max_int anonymous types are available. anonymous raises an exception if i is already registered.

val eq : 'a tag -> 'b tag -> ('a, 'b) CSig.eq option

eq t1 t2 returns Some witness if t1 is the same as t2, None otherwise.

val repr : 'a tag -> string

repr tag returns the name of the type represented by tag.

val dump : unit -> (int * string) list

dump () returns a list of (tag, name) pairs for every type tag registered in this Dyn.Make instance.

type any =

| Any : 'a tag -> any
(*
Type of boxed dynamic tags
*)

val name : string -> any option

name n returns Some t where t is a boxed tag previously registered with create n, or None if there is no such tag.

module Map
  (Value : Dyn.ValueS) : 
  Dyn.MapS with type 'a key = 'a tag and type 'a value = 'a Value.t

Map from type tags to values parameterized by the tag type

module HMap (V1 : Dyn.ValueS) (V2 : Dyn.ValueS) : sig ... end

module Easy : sig ... end