fmt
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1 changed files with 132 additions and 162 deletions
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@ -387,67 +387,60 @@ and expression' environment memory e =
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and E = [runtime.environment], M = [runtime.memory]. *)
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and expression pos environment memory = function
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| Literal l -> literal_expression l.value
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| Variable (id, _) ->
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(* On cherche l'id dans l'environnement *)
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Environment.lookup id.position id.value environment
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| Tagged(constructor,_,list_t) -> (* On ignore le type car on interprète *)
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| Tagged (constructor, _, list_t) ->
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(* On ignore le type car on interprète *)
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VTagged (constructor.value, List.map (expression' environment memory) list_t)
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| Record (labels, _) ->
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VRecord(List.map((pair_labels_gvalue) (environment) (memory)) labels)
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| Field(expr,label,_) -> field_value expr label environment memory
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(* On ignore la liste de type *)
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VRecord (List.map (pair_labels_gvalue environment memory) labels)
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| Field (expr, label, _) ->
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field_value expr label environment memory (* On ignore la liste de type *)
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| Tuple [] ->
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(* Cas pour le Tuple vide
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* Un tuple vide ne contient rien (logique), donc on utilise un VUnit*)
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VUnit
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| Tuple list_exp -> VTuple (List.map (expression' environment memory) list_exp)
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(*Sequence : on evalue chaque expression, puis on récupère la dernière à avoir été évalué.
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Le dernier élément se trouve facilement en faisant un reverse de liste et en récupérant la tête. *)
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| Sequence(list_expr) -> (let vs = List.map (expression' environment memory) list_expr in List.hd (List.rev vs))
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(* Sequence : on evalue chaque expression,
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* puis on récupère la dernière à avoir été évalué.
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* Le dernier élément se trouve facilement en faisant un reverse de liste
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* et en récupérant la tête. *)
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| Sequence list_expr ->
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let vs = List.map (expression' environment memory) list_expr in
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List.hd (List.rev vs)
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| Define (value_def, expr) ->
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let runtime = value_definition { environment; memory } value_def in
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expression' runtime.environment runtime.memory expr
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| Fun (FunctionDefinition (pattern, expr)) -> VClosure (environment, pattern, expr)
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| Apply (f, x) -> apply_expression f x environment memory
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| Ref ref ->
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let dref = expression' environment memory ref in
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VLocation (Memory.allocate memory Mint.one dref)
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| Assign (expr1, expr2) ->
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(assign_value expr1 expr2 environment memory ; VUnit)
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assign_value expr1 expr2 environment memory;
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VUnit
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| Read read ->
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let loc = value_as_location (expression' environment memory read) in
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(match loc with
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| Some (adr) -> Memory.read (Memory.dereference memory adr) (Mint.zero) (* On lis la valeur de la mémoire*)
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| None -> failwith "erreur") (* TODO : faire une vrai erreur *)
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| Case(expr,branch) -> (*case_value expr branch environment memory*)
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| Some adr ->
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Memory.read (Memory.dereference memory adr) Mint.zero
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(* On lis la valeur de la mémoire *)
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| None -> failwith "erreur")
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(* TODO : faire une vrai erreur *)
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| Case (expr, branch) ->
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(* case_value expr branch environment memory *)
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(* TODO *)
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failwith "Students! This is your job (Case)!"
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| IfThenElse(expr1,expr2,expr3) -> if_then_else_value expr1 expr2 expr3 environment memory
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| IfThenElse (expr1, expr2, expr3) ->
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if_then_else_value expr1 expr2 expr3 environment memory
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| While (expr1, expr2) -> while_value expr1 expr2 environment memory pos
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| For (id, expr1, expr2, expr3) -> for_value id expr1 expr2 expr3 environment memory
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| TypeAnnotation _ -> VUnit
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(* On ignore le type car on interprète *)
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(* TODO a finir (à commencer plutôt)*)
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(*
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and case_value expr branch environment memory =
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(* and case_value expr branch environment memory =
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(* On calcule d'abord l'expression *)
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let v = expression' environment memory expr in
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match v with
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@ -456,76 +449,69 @@ and case_value expr branch environment memory =
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and for_value id expr1 expr2 expr3 environment memory =
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let borne_inf = value_as_int (expression' environment memory expr1) in
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let borne_sup = value_as_int (expression' environment memory expr2) in
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match borne_inf, borne_sup with (* On regarde que les borne_inf et borne_sup ont bien une valeur d'entier*)
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match borne_inf, borne_sup with
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(* On regarde que les borne_inf et borne_sup ont bien une valeur d'entier *)
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(* Si c'est le cas, alors nous sommes bien dans une boucle for et on effectue ses opérations *)
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| Some(borne_inf), Some(borne_sup) -> boucle_for id borne_inf borne_sup expr3 environment memory
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| Some borne_inf, Some borne_sup ->
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boucle_for id borne_inf borne_sup expr3 environment memory
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(* On appelle une seconde fonction car pour évalué la boucle for, il faudra rappeler la boucle
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en augmentant l'indice de la borne inférieur de 1 à chaque appelle. *)
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| _ -> error [ position expr1; position expr2 ] "erreur"
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and boucle_for id borne_inf borne_sup expr3 environment memory =
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if borne_inf <= borne_sup (* Cas où nous sommes dans la boucle *)
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then
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let env' = (* On lis l'identifier avec la borne inférieur*)
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Environment.bind environment id.value (int_as_value borne_inf) in
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then (
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let env' =
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(* On lis l'identifier avec la borne inférieur *)
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Environment.bind environment id.value (int_as_value borne_inf)
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in
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let calcul = expression' environment memory expr3 in
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boucle_for id (Mint.add borne_inf Mint.one) borne_sup expr3 env' memory
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else
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VUnit (*Cas où nous ne sommes plus dans la boucle, on renvoie un VUnit*)
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boucle_for id (Mint.add borne_inf Mint.one) borne_sup expr3 env' memory)
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else VUnit (* Cas où nous ne sommes plus dans la boucle, on renvoie un VUnit *)
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(* Assign *)
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(* On commence par récupérer l'évaluation de expr1, qui correspond à la valeur à laquelle est affecté expr2*)
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(* On commence par récupérer l'évaluation de expr1, qui correspond à la valeur
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* à laquelle est affecté expr2 *)
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and assign_value expr1 expr2 environment memory =
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let vall = value_as_location (expression' environment memory expr1) in
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(* On regarde ensuite si*)
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match vall with
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| None -> error [ position expr1; position expr2 ] "erreur assign"
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| Some(v) -> assign_calcul environment memory expr2 v
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| Some v -> assign_calcul environment memory expr2 v
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and assign_calcul environment memory expr2 v =
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let value = expression' environment memory expr2 in
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let mem = Memory.dereference memory v in
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Memory.write mem Mint.zero value
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and pair_labels_gvalue environment memory (lab, expr) =
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(Position.value lab, expression' environment memory expr)
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Position.value lab, expression' environment memory expr
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and while_value expr1 expr2 environment memory pos =
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let cond = expression' environment memory expr1 in (* On récupère la valeur de la condition *)
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let cond = expression' environment memory expr1 in
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(* On récupère la valeur de la condition *)
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match value_as_bool cond with
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| true ->
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let expr' = expression' environment memory expr2 in
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expression pos environment memory (While (expr1, expr2))
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| false -> VUnit
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and if_then_else_value expr1 expr2 expr3 environment memory =
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let cond = expression' environment memory expr1 in (* On récupère la valeur de la condition *)
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let cond = expression' environment memory expr1 in
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(* On récupère la valeur de la condition *)
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match value_as_bool cond with
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| true -> expression' environment memory expr2
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(* SI c'est true, alors on évalue la première expression*)
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| true ->
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expression' environment memory expr2
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(* Si c'est true, alors on évalue la première expression *)
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| false -> expression' environment memory expr3 (* sinon la deuxième *)
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and field_value expr label environment memory =
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match expression' environment memory expr with
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| VRecord record -> List.assoc label.value record
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| _ -> assert false (* Cas où il n'y a pas de record, donc c'est une erreur *)
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and label_gvalue_pair environment memory (label, expr) =
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(Position.value label, expression' environment memory expr)
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Position.value label, expression' environment memory expr
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and apply_expression f x environment memory =
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let x_val = expression' environment memory x in
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@ -533,13 +519,13 @@ and apply_expression f x environment memory =
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| VPrimitive (_, f) ->
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(* Fonction "primitive" *)
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f memory x_val
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| VClosure (_env_fn, _pattern, _expr) ->(
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| VClosure (_env_fn, _pattern, _expr) ->
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let valeur_pattern = value _pattern in
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let pat = pattern _env_fn valeur_pattern x_val in (*Pattern va nous calculer un nouvelle environnement*)
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match pat with
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| Some(env') -> expression' env' memory _expr
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| None -> failwith ("erreur"))
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let pat = pattern _env_fn valeur_pattern x_val in
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(* Pattern va nous calculer un nouvelle environnement *)
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(match pat with
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| Some env' -> expression' env' memory _expr
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| None -> failwith "erreur")
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| _ -> assert false (* By typing *)
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and literal_expression = function
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@ -547,31 +533,21 @@ and literal_expression = function
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| LChar c -> VChar c
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| LString s -> VString s
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(* On match le pattern et expression en même temps *)
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and pattern environment pat expression =
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match pat, expression with
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| PWildcard, _ -> Some(environment)
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| PWildcard, _ -> Some environment
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| PLiteral pl, _ -> literal_pattern pl environment expression
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| PVariable var, _ -> Some (Environment.bind environment (value var) expression)
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| PTypeAnnotation (new_pattern, _), _ ->
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let valeur_pattern = value new_pattern in
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pattern environment valeur_pattern expression
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| PTaggedValue(cons,_,new_pattern),VTagged(cons2,new_pattern2) -> tagged_pattern cons cons2 new_pattern new_pattern2 environment
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| PRecord(r,_),VRecord(r2) -> (*TODO*)failwith "erreur"
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| PTuple(tab),VTuple(tab2) -> tuple_pattern environment tab tab2
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| PTaggedValue (cons, _, new_pattern), VTagged (cons2, new_pattern2) ->
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tagged_pattern cons cons2 new_pattern new_pattern2 environment
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| PRecord (r, _), VRecord r2 -> (*TODO*) failwith "erreur"
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| PTuple tab, VTuple tab2 -> tuple_pattern environment tab tab2
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| POr pl, _ -> or_pattern environment pl expression
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| PAnd pl, _ -> and_pattern env pl expression
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| PAnd pl, _ -> and_pattern environment pl expression
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| _ -> None
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(* On va match les deux listes *)
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@ -580,39 +556,36 @@ and and_pattern env pl expression =
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match pl with
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| [] -> Some env
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| p :: pl' ->
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(let valeur_pattern = value p in
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match pattern env valeur_pattern expression with
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let valeur_pattern = value p in
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(match pattern env valeur_pattern expression with
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| None -> None
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| Some env' -> and_pattern env pl' expression)
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and or_pattern env pl expression =
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match pl with
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| [] -> None
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| p :: pl' ->(
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| p :: pl' ->
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let valeur_pattern = value p in
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match pattern env valeur_pattern expression with
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| Some (env') -> Some (env')
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| None -> or_pattern env pl' expression
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)
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(match pattern env valeur_pattern expression with
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| Some env' -> Some env'
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| None -> or_pattern env pl' expression)
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and tuple_pattern environment tab tab2 =
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if List.length tab = List.length tab2 then
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if List.length tab = List.length tab2
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then (
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match tab, tab2 with
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| [], [] -> Some (environment)
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| [], [] -> Some environment
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| pat :: tab', expr :: tab2' ->
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(let valeur_pattern = value pat in
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match pattern environment valeur_pattern expr with
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| Some (env') -> tuple_pattern env' tab' tab2'
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let valeur_pattern = value pat in
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(match pattern environment valeur_pattern expr with
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| Some env' -> tuple_pattern env' tab' tab2'
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| None -> None)
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| _ -> None)
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else None
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and tagged_pattern cons1 cons2 pattern1 pattern2 environment =
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let valeur_cons1 = value cons1 in
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if valeur_cons1 = cons2 then
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tuple_pattern environment pattern1 pattern2
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else None
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if valeur_cons1 = cons2 then tuple_pattern environment pattern1 pattern2 else None
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(*
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and variable_pattern environment var expression =
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@ -622,16 +595,13 @@ and variable_pattern environment var expression =
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and literal_pattern pl environment expression =
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let valeur_pl = value pl in
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let verif_literal l1 l2 =
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if l1 = l2 then Some(environment) else None in
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let verif_literal l1 l2 = if l1 = l2 then Some environment else None in
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match valeur_pl, expression with
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| LInt int1, VInt int2 -> verif_literal int1 int2
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| LChar char1, VChar char2 -> verif_literal char1 char2
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| LString str1, VString str2 -> verif_literal str1 str2
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| _ -> None
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(** This function returns the difference between two runtimes. *)
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and extract_observable runtime runtime' =
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let rec substract new_environment env env' =
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