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POTTIER Francois
alphaLib
Commits
51b131f2
Commit
51b131f2
authored
Feb 14, 2017
by
POTTIER Francois
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The beginning of an Unbound emulation.
parent
5c02cf77
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src/BindingForms.ml
src/BindingForms.ml
+1
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src/Unbound.ml
src/Unbound.ml
+103
-0
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src/BindingForms.ml
View file @
51b131f2
...
...
@@ -396,3 +396,4 @@ class virtual ['self] iter2 = object (_ : 'self)
end
open
MLPatternExample
(* TEMPORARY work in progress *)
open
Unbound
src/Unbound.ml
0 → 100644
View file @
51b131f2
type
'
env
patenv
=
|
ModeNormal
of
{
outer
:
'
env
;
inner
:
'
env
;
mutable
current
:
'
env
}
type
'
t
outer
=
'
t
type
'
t
inner
=
'
t
type
(
'
p
,
'
t
)
rebind
=
'
p
*
'
t
type
'
t
recursive
=
'
t
class
virtual
[
'
self
]
map
=
object
(
self
:
'
self
)
method
private
virtual
extend
:
'
bn1
->
'
env
->
'
bn2
*
'
env
method
private
visit_'bn
(
patenv
:
'
env
patenv
)
(
x1
:
'
bn1
)
:
'
bn2
=
match
patenv
with
|
ModeNormal
r
->
let
env
=
r
.
current
in
let
x2
,
env
=
self
#
extend
x1
env
in
r
.
current
<-
env
;
x2
method
private
visit_outer
:
'
t1
'
t2
.
(
'
env
->
'
t1
->
'
t2
)
->
'
env
patenv
->
'
t1
outer
->
'
t2
outer
=
fun
visit_t
patenv
t1
->
match
patenv
with
|
ModeNormal
r
->
let
env
=
r
.
outer
in
visit_t
env
t1
method
private
visit_inner
:
'
t1
'
t2
.
(
'
env
->
'
t1
->
'
t2
)
->
'
env
patenv
->
'
t1
inner
->
'
t2
inner
=
fun
visit_t
patenv
t1
->
match
patenv
with
|
ModeNormal
r
->
let
env
=
r
.
inner
in
visit_t
env
t1
method
private
visit_rebind
:
'
p1
'
p2
'
q1
'
q2
.
(
'
env
patenv
->
'
p1
->
'
p2
)
->
(
'
env
patenv
->
'
q1
->
'
q2
)
->
'
env
patenv
->
(
'
p1
,
'
q1
)
rebind
->
(
'
p2
,
'
q2
)
rebind
=
fun
visit_p
visit_q
patenv
(
p1
,
q1
)
->
let
p2
=
visit_p
patenv
p1
in
(* Copy [current] into [outer]. This changes the meaning of [outer]
in the right-hand side of [rebind]. *)
let
patenv
=
match
patenv
with
|
ModeNormal
r
->
ModeNormal
{
r
with
outer
=
r
.
current
}
in
let
q2
=
visit_q
patenv
q1
in
p2
,
q2
(* TEMPORARY
method private visit_freeze: 'env 't1 't2 .
('env mode -> 't1 -> 't2) ->
'env mode -> 't1 -> 't2
= fun visit_t mode t1 ->
visit_t (freeze mode) t1
method private visit_embed: 'env 't1 't2 .
('env -> 't1 -> 't2) ->
'env mode -> 't1 -> 't2
= fun visit_t mode t1 ->
visit_t (embed mode) t1
method private visit_bind: 'env 'p1 'p2 't1 't2 .
('env mode -> 'p1 -> 'p2) ->
('env -> 't1 -> 't2) ->
'env -> ('p1, 't1) bind -> ('p2, 't2) bind
= fun visit_p visit_t env (p1, t1) ->
let envref = ref env in
let p2 = visit_p (ModePattern envref) p1 in
let env = !envref in
let t2 = visit_t env t1 in
p2, t2
*)
end
(*
type 'bn pat =
| PZero
| POne
| PVar of 'bn
| PTuple of 'bn pat list
| PConj of 'bn pat * 'bn pat
| PDisj of 'bn pat * 'bn pat
and ('bn, 'fn) expr =
| EVar of 'fn
| EAdd of ('bn, 'fn) expr * ('bn, 'fn) expr
| ELet of ('bn pat, ('bn, 'fn) expr) bind
[@@deriving visitors { variety = "map"; ancestors = ["libmap"] }]
*)
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