diff options
| author |  puech <puech@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2011-08-08 08:46:34 +0000 |
|---|---|---|
| committer | puech <puech@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2011-08-08 08:46:34 +0000 |
| commit | 59462251fec623636b3a5396253e38f6d29bf747 (patch) | |
| tree | c23d7dff6718ce6e2211e719485f284f3bc8dd00 /kernel/esubst.mli | |
| parent | ca6b6bfde9a0c5b91a53e9c139140403369ff658 (diff) | |
Esubst: make types of substitutions & lifts private
Allows to be sure that we apply the smart constructors.
Propagate the change to Closure, Reduction, Term, Cbv and Newring
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14386 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'kernel/esubst.mli')
| -rw-r--r-- | kernel/esubst.mli | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/esubst.mli b/kernel/esubst.mli index e605fa212..fe978261e 100644 --- a/kernel/esubst.mli +++ b/kernel/esubst.mli @@ -16,13 +16,14 @@ - SHIFT(n,S) = (^n o S) terms in S are relocated with n vars - LIFT(n,S) = (%n S) stands for ((^n o S).n...1) (corresponds to S crossing n binders) *) -type 'a subs = +type 'a subs = private | ESID of int | CONS of 'a array * 'a subs | SHIFT of int * 'a subs | LIFT of int * 'a subs (** Derived constructors granting basic invariants *) +val subs_id : int -> 'a subs val subs_cons: 'a array * 'a subs -> 'a subs val subs_shft: int * 'a subs -> 'a subs val subs_lift: 'a subs -> 'a subs @@ -54,11 +55,12 @@ val comp : ('a subs * 'a -> 'a) -> 'a subs -> 'a subs -> 'a subs (** Compact representation of explicit relocations - [ELSHFT(l,n)] == lift of [n], then apply [lift l]. - [ELLFT(n,l)] == apply [l] to de Bruijn > [n] i.e under n binders. *) -type lift = +type lift = private | ELID | ELSHFT of lift * int | ELLFT of int * lift +val el_id : lift val el_shft : int -> lift -> lift val el_liftn : int -> lift -> lift val el_lift : lift -> lift |