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Etape 2 : free_variables (à tester)

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Nicolas PENELOUX 2023-12-12 16:13:31 +01:00
parent 6e0deecba5
commit 1921101d45
1 changed files with 14 additions and 4 deletions
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18
flap/src/fopix/hobixToFopix.ml
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@ -120,16 +120,26 @@ let free_variables =
| [ s ] -> f s | [ s ] -> f s
| s :: xs -> M.union (f s) (unions f xs) | s :: xs -> M.union (f s) (unions f xs)
in in
(*Une variable libre est une variable qui peut être substitué*)
(*TODO : rajouter des explications pour While Define et Fun*)
let rec fvs = function let rec fvs = function
| S.Literal _ -> M.empty | S.Literal _ -> M.empty
| S.Variable x -> M.singleton x | S.Variable x -> M.singleton x
| S.While (cond, e) -> failwith "Students! This is your job!" | S.While (cond, e) -> unions fvs [cond;e]
| S.Define (vd, a) -> failwith "Students! This is your job!" | S.Define (vd, a) ->
let liste_def_valeur =
match vd with
| S.SimpleValue (id,expr) -> [(id,expr)]
| S.RecFunctions (list) -> list
in
let id, expr = List.split liste_def_valeur in
M.diff (unions fvs (a::expr)) (M.of_list id)
| S.ReadBlock (a, b) -> unions fvs [ a; b ] | S.ReadBlock (a, b) -> unions fvs [ a; b ]
| S.Apply (a, b) -> unions fvs (a :: b) | S.Apply (a, b) -> unions fvs (a :: b)
| S.WriteBlock (a, b, c) | S.IfThenElse (a, b, c) -> unions fvs [ a; b; c ] | S.WriteBlock (a, b, c) | S.IfThenElse (a, b, c) -> unions fvs [ a; b; c ]
| S.AllocateBlock a -> fvs a | S.AllocateBlock a -> fvs a
| S.Fun (xs, e) -> failwith "Students! This is your job!" | S.Fun (xs, e) -> M.diff (fvs e) (M.of_list xs)
| S.Switch (a, b, c) -> | S.Switch (a, b, c) ->
let c = let c =
match c with match c with
@ -139,7 +149,7 @@ let free_variables =
unions fvs ((a :: ExtStd.Array.present_to_list b) @ c) unions fvs ((a :: ExtStd.Array.present_to_list b) @ c)
in in
fun e -> M.elements (fvs e) fun e -> M.elements (fvs e)
;;
(** A closure compilation environment relates an identifier to the way (** A closure compilation environment relates an identifier to the way
it is accessed in the compiled version of the function's it is accessed in the compiled version of the function's