diff options
| author |  Samuel Mimram <smimram@debian.org> | 2006-06-16 14:41:51 +0000 |
|---|---|---|
| committer | Samuel Mimram <smimram@debian.org> | 2006-06-16 14:41:51 +0000 |
| commit | e978da8c41d8a3c19a29036d9c569fbe2a4616b0 (patch) | |
| tree | 0de2a907ee93c795978f3c843155bee91c11ed60 /kernel/esubst.mli | |
| parent | 3ef7797ef6fc605dfafb32523261fe1b023aeecb (diff) | |
Imported Upstream version 8.0pl3+8.1betaupstream/8.0pl3+8.1beta
Diffstat (limited to 'kernel/esubst.mli')
| -rw-r--r-- | kernel/esubst.mli | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/kernel/esubst.mli b/kernel/esubst.mli index 39fbbede..3b40bdfc 100644 --- a/kernel/esubst.mli +++ b/kernel/esubst.mli @@ -6,7 +6,7 @@ (* * GNU Lesser General Public License Version 2.1 *) (************************************************************************) -(*i $Id: esubst.mli 6621 2005-01-21 17:24:37Z herbelin $ i*) +(*i $Id: esubst.mli 8799 2006-05-09 21:15:07Z barras $ i*) (*s Compact representation of explicit relocations. \\ [ELSHFT(l,n)] == lift of [n], then apply [lift l]. @@ -22,21 +22,22 @@ val el_lift : lift -> lift val reloc_rel : int -> lift -> int val is_lift_id : lift -> bool -(*s Explicit substitutions of type ['a]. [ESID n] = %n~END = bounded identity. - [CONS(t,S)] = $S.t$ i.e. parallel substitution. [SHIFT(n,S)] = - $(\uparrow n~o~S)$ i.e. terms in S are relocated with n vars. - [LIFT(n,S)] = $(\%n~S)$ stands for $((\uparrow n~o~S).n...1)$. *) +(*s Explicit substitutions of type ['a]. *) type 'a subs = - | ESID of int - | CONS of 'a * 'a subs - | SHIFT of int * 'a subs - | LIFT of int * 'a subs + | ESID of int (* ESID(n) = %n END bounded identity *) + | CONS of 'a array * 'a subs + (* CONS([|t1..tn|],S) = + (S.t1...tn) parallel substitution + beware of the order *) + | SHIFT of int * 'a subs (* SHIFT(n,S) = (^n o S) terms in S are relocated *) + (* with n vars *) + | LIFT of int * 'a subs (* LIFT(n,S) = (%n S) stands for ((^n o S).n...1) *) -val subs_cons: 'a * 'a subs -> '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 val subs_liftn: int -> 'a subs -> 'a subs -val subs_shift_cons: int * 'a subs * 'a -> 'a subs +val subs_shift_cons: int * 'a subs * 'a array -> 'a subs val expand_rel: int -> 'a subs -> (int * 'a, int * int option) Util.union val is_subs_id: 'a subs -> bool -val comp : ('a subs * 'a -> 'a) -> 'a subs -> 'a subs -> 'a subs
\ No newline at end of file +val comp : ('a subs * 'a -> 'a) -> 'a subs -> 'a subs -> 'a subs |