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let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let u = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then u else x... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> (unify (unify substitution t1' t2') t1 t... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> let a = unify substitution t1 t2 in unif... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> raise NotImplemented | UTVar a, _ -> uni... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> unify (unify substitution t1 t2) (t1') (... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> raise NotImplemented | UTVar a, _ -> uni... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> raise NotImplemented | UTVar a, _ -> uni... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> unify (unify substitution t1 t2) t1' t2'... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> let a = unify substitution t1 t2 in let ... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> let newsub = unify substitution t1 t2 in... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> let subst1 = unify substitution t1 t2 in... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> unify (unify substitution t1 t2) t1' t2'... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> raise NotImplemented | UTVar a, _ -> uni... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> unify (unify substitution t1 t2) t1' t2'... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> raise NotImplemented | UTVar a, _ -> uni... |
let unused_vars_tests = let fn_expr1 = Fn ([("x", Int); ("y", Int)], add (Var("x")) (Var("y"))) in let fn_expr2 = Fn ([("x", Int)], add (I 1) (Var("y"))) in let fn_expr3 = Fn ([("z", Int); ("a", Bool)], add (Var("x")) (Var("y"))) in let rec_expr1 = Rec ("x", Int, add (Var("x")) (Var("y"))) in let rec_expr2 = Rec ("z", ... |
let subst_tests : ( ( (exp * name) * exp) * exp) list = let fn_expr: exp = Fn([("a", Int); ("b", Int)], Primop(Times, [Var("a"); Var("b")])) in let e1 = equals (Var("n")) (I 0) in let e2 = (I 1) in let e3 = subtract (Var("n")) (I 1) in let e4 = multiply (Var("n")) (Apply(Var("fact"), [e3])) in [ (((I 1, "x"), Let ("y",... |
let eval_tests = [ (Let ("x", I 1, Primop (Plus, [Var "x"; I 5])), I 6) ] |
let infer_tests = [ (([("x", Int)], Var "x"), Int) ] |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unused_vars_tests = let fn_expr1 = Fn ([("x", Int); ("y", Int)], add (Var("x")) (Var("y"))) in let fn_expr2 = Fn ([("x", Int)], add (I 1) (Var("y"))) in let fn_expr3 = Fn ([("z", Int); ("a", Bool)], add (Var("x")) (Var("y"))) in let rec_expr1 = Rec ("x", Int, add (Var("x")) (Var("y"))) in let rec_expr2 = Rec ("z", ... |
let subst_tests : ( ( (exp * name) * exp) * exp) list = let fn_expr: exp = Fn([("a", Int); ("b", Int)], Primop(Times, [Var("a"); Var("b")])) in let e1 = equals (Var("n")) (I 0) in let e2 = (I 1) in let e3 = subtract (Var("n")) (I 1) in let e4 = multiply (Var("n")) (Apply(Var("fact"), [e3])) in [ (((I 1, "x"), Let ("y",... |
let eval_tests = let e1 = equals (Var("n")) (I 0) in let e2 = (I 1) in let e3 = subtract (Var("n")) (I 1) in let e4 = multiply (Var("n")) (Apply(Var("fact"), [e3])) in let e5 = If(e1, e2, e4) in let e6 = Fn([("n", Int)], e5) in let rec_expr_fact = Rec ("fact", Arrow([Int], Int), e6) in [ (Let ("x", I 1, Primop (Plus, [... |
let infer_tests = [ (([("x", Int)], Var "x"), Int) ] |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> substitution | UTVar a, _ -> unifyVar su... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> unify substitution t1 t2 | UTVar a, _ ->... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> unify substitution t1 t2 | UTVar a, _ ->... |
let rec unused_vars = function | Var _ | I _ | B _ -> [] | If (e, e1, e2) -> unused_vars e @ unused_vars e1 @ unused_vars e2 | Primop (_, args) -> List.fold_left (fun acc exp -> acc @ unused_vars exp) [] args | Let (x, e1, e2) -> let unused = unused_vars e1 @ unused_vars e2 in if List.mem x (free_variables e2) then unu... |
let rec subst ((e', x) as s) exp = match exp with | Var y -> if x = y then e' else Var y | I n -> I n | B b -> B b | Primop (po, args) -> Primop (po, List.map (subst s) args) | If (e, e1, e2) -> If (subst s e, subst s e1, subst s e2) | Let (y, e1, e2) -> let e1' = subst s e1 in if y = x then Let (y, e1', e2) else let (... |
let rec eval exp = match exp with | I _ -> exp | B _ -> exp | Fn _ -> exp | Var x -> raise (Stuck (Free_variable x)) | Primop (po, args) -> let args = List.map eval args in begin match eval_op po args with | None -> raise (Stuck Bad_primop_args) | Some v -> v end | If (e, e1, e2) -> begin match eval e with | B true -> ... |
let rec infer ctx e = match e with | Var x -> begin try lookup x ctx with Not_found -> raise (TypeError (Free_variable x)) end | I _ -> Int | B _ -> Bool | Primop (po, exps) -> let (domain, range) = primopType po in check ctx exps domain range | If (e, e1, e2) -> begin match infer ctx e with | Bool -> let t1 = infer ct... |
let unify : utp -> utp -> utp UTVarMap.t = let rec unify (substitution : utp UTVarMap.t) (t1 : utp) (t2 : utp) : utp UTVarMap.t = match t1, t2 with | UInt, UInt | UBool, UBool -> substitution | UTVar a, UTVar a' when a = a' -> substitution | UArrow (t1, t1'), UArrow (t2, t2') -> let a = unify substitution t1' t2' in un... |
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