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authorMaxime Dénès2018-02-16 01:02:17 +0100
committerVincent Laporte2019-02-04 13:12:40 +0000
commite43b1768d0f8399f426b92f4dfe31955daceb1a4 (patch)
treed46d10f8893205750e7238e69512736243315ef6 /engine/eConstr.ml
parenta1b7f53a68c9ccae637f2c357fbe50a09e211a4a (diff)
Primitive integers
This work makes it possible to take advantage of a compact representation for integers in the entire system, as opposed to only in some reduction machines. It is useful for heavily computational applications, where even constructing terms is not possible without such a representation. Concretely, it replaces part of the retroknowledge machinery with a primitive construction for integers in terms, and introduces a kind of FFI which maps constants to operators (on integers). Properties of these operators are expressed as explicit axioms, whereas they were hidden in the retroknowledge-based approach. This has been presented at the Coq workshop and some Coq Working Groups, and has been used by various groups for STM trace checking, computational analysis, etc. Contributions by Guillaume Bertholon and Pierre Roux <Pierre.Roux@onera.fr> Co-authored-by: Benjamin Grégoire <Benjamin.Gregoire@inria.fr> Co-authored-by: Vincent Laporte <Vincent.Laporte@fondation-inria.fr>
Diffstat (limited to 'engine/eConstr.ml')
-rw-r--r--engine/eConstr.ml4
1 files changed, 3 insertions, 1 deletions
diff --git a/engine/eConstr.ml b/engine/eConstr.ml
index 24d161d00a..8493119ee5 100644
--- a/engine/eConstr.ml
+++ b/engine/eConstr.ml
@@ -73,6 +73,7 @@ let mkFix f = of_kind (Fix f)
let mkCoFix f = of_kind (CoFix f)
let mkProj (p, c) = of_kind (Proj (p, c))
let mkArrow t1 t2 = of_kind (Prod (Anonymous, t1, t2))
+let mkInt i = of_kind (Int i)
let mkRef (gr,u) = let open GlobRef in match gr with
| ConstRef c -> mkConstU (c,u)
@@ -81,6 +82,7 @@ let mkRef (gr,u) = let open GlobRef in match gr with
| VarRef x -> mkVar x
let applist (f, arg) = mkApp (f, Array.of_list arg)
+let applistc f arg = mkApp (f, Array.of_list arg)
let isRel sigma c = match kind sigma c with Rel _ -> true | _ -> false
let isVar sigma c = match kind sigma c with Var _ -> true | _ -> false
@@ -328,7 +330,7 @@ let iter_with_full_binders sigma g f n c =
let open Context.Rel.Declaration in
match kind sigma c with
| (Rel _ | Meta _ | Var _ | Sort _ | Const _ | Ind _
- | Construct _) -> ()
+ | Construct _ | Int _) -> ()
| Cast (c,_,t) -> f n c; f n t
| Prod (na,t,c) -> f n t; f (g (LocalAssum (na, t)) n) c
| Lambda (na,t,c) -> f n t; f (g (LocalAssum (na, t)) n) c