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Merged tuples and records so that x.4 is valid in principle

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This commit is contained in:
Georges Dupéron 2019-03-14 17:58:14 +01:00
parent 9c5d31eca1
commit e1ad18cd3e
1 changed files with 13 additions and 15 deletions
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28
AST2.ml
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@ -14,8 +14,6 @@ module O = struct
type var_name = name_and_region
type field_name = name_and_region
type record_key = [`Field of field_name | `Component of int]
type pattern =
PVar of var_name
| PWild
@ -29,9 +27,7 @@ module O = struct
| PSome of pattern
| PCons of pattern * pattern
| PNull
| PRecord of record_key precord
and 'key precord = ('key * pattern) list
| PRecord of (field_name * pattern) list
type type_constructor =
Option
@ -41,7 +37,7 @@ module O = struct
type type_expr_case =
Sum of (type_name * type_expr) list
| Record of record_key type_record
| Record of (field_name * type_expr) list
| TypeApp of type_constructor * (type_expr list)
| Function of { arg: type_expr; ret: type_expr }
| Ref of type_expr
@ -75,8 +71,8 @@ module O = struct
and operator =
Function of var_name
| Construcor of var_name
| UpdateField of record_key
| GetField of record_key
| UpdateField of field_name
| GetField of field_name
| Or | And | Lt | Leq | Gt | Geq | Equal | Neq | Cat | Cons | Add | Sub | Mult | Div | Mod
| Neg | Not
| Tuple | Set | List
@ -126,6 +122,8 @@ let fold_map f a l =
(* Simplify the AST *)
let name_and_region_of_int i = O.{name = string_of_int i; orig = Region.ghost}
let s_nsepseq : ('a,'sep) Utils.nsepseq -> 'a list =
fun (first, rest) -> first :: (map snd rest)
@ -159,7 +157,7 @@ let rec s_cartesian {value=sequence; region} : O.type_expr =
let () = ignore (region) in
s_nsepseq sequence
|>map s_type_expr
|> mapi (fun i p -> `Component i, p)
|> mapi (fun i p -> name_and_region_of_int i, p)
|> (fun x -> (Record x : O.type_expr_case))
|> type_expr region
@ -173,11 +171,11 @@ and s_variant {value=(constr, kwd_of, cartesian); region} =
and s_record_type {value=(kwd_record, field_decls, kwd_end); region} : O.type_expr =
let () = ignore (kwd_record,region,kwd_end) in
type_expr region (Record (map s_field_decl (s_nsepseq field_decls)))
type_expr region (Record (map s_field_decl (s_nsepseq field_decls)) : O.type_expr_case)
and s_field_decl {value=(var, colon, type_expr); region} =
and s_field_decl {value=(var, colon, type_expr); region} : O.type_name * O.type_expr =
let () = ignore (colon,region) in
(`Field (s_name var), s_type_expr type_expr)
((s_name var), (s_type_expr type_expr))
and s_type_app {value=(type_name,type_tuple); region} : O.type_expr =
let () = ignore (region) in
@ -232,13 +230,13 @@ let s_none {value=(l, (c_None, colon, type_expr), r); region} : O.expr =
let parameters_to_tuple (parameters : (string * O.type_expr) list) : O.type_expr =
(* TODO: use records with named fields to have named arguments. *)
let parameter_tuple = O.Record (mapi (fun i (_name,ty) -> `Component i, ty) parameters) in
let parameter_tuple = O.Record (mapi (fun i (_name,ty) -> name_and_region_of_int i, ty) parameters) in
O.{ type_expr = parameter_tuple; name = None; orig = Region.ghost }
and parameters_to_decls singleparam (parameters : (string * O.type_expr) list) : O.decl list =
let f i (name,ty) =
O.{ name = {name; orig=Region.ghost};
ty = ty;
value = App { operator = O.GetField (`Component i);
value = App { operator = O.GetField (name_and_region_of_int i);
arguments = [Var singleparam] } }
in mapi f parameters
@ -347,7 +345,7 @@ and s_ptuple {value=(lpar, sequence, rpar); region} =
let () = ignore (lpar, rpar, region) in
s_nsepseq sequence
|> map s_core_pattern
|> mapi (fun i p -> `Component i, p)
|> mapi (fun i p -> name_and_region_of_int i, p)
|> fun x -> O.PRecord x
and s_psome {value=(c_Some,{value=(l,psome,r);region=region2});region} : O.pattern =