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467 lines
12 KiB
467 lines
12 KiB
(*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*)
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(** Global namespace opened in each source file by the build system *)
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include (
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Base :
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sig
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include
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(module type of Base
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with module Option := Base.Option
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and module List := Base.List
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(* prematurely deprecated, remove and use Stdlib instead *)
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and module Filename := Base.Filename
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and module Format := Base.Format
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and module Marshal := Base.Marshal
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and module Scanf := Base.Scanf
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and type ('ok, 'err) result := ('ok, 'err) Base.result
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[@warning "-3"])
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end )
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(* undeprecate *)
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external ( == ) : 'a -> 'a -> bool = "%eq"
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external ( != ) : 'a -> 'a -> bool = "%noteq"
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exception Not_found = Caml.Not_found
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include Stdio
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module Command = Core.Command
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module Hash_queue = Core_kernel.Hash_queue
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include Import0
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(** Tuple operations *)
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let fst3 (x, _, _) = x
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let snd3 (_, y, _) = y
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let trd3 (_, _, z) = z
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(** Function combinators *)
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let ( >> ) f g x = g (f x)
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let ( << ) f g x = f (g x)
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let ( $ ) f g x = f x ; g x
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let ( $> ) x f = f x ; x
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let ( <$ ) f x = f x ; x
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(** Failures *)
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let fail = Trace.fail
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exception Unimplemented of string
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let todo fmt = Trace.raisef (fun msg -> Unimplemented msg) fmt
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let warn fmt =
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let fs = Format.std_formatter in
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Format.pp_open_box fs 2 ;
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Format.pp_print_string fs "Warning: " ;
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Format.kfprintf
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(fun fs () ->
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Format.pp_close_box fs () ;
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Format.pp_force_newline fs () )
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fs fmt
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(** Assertions *)
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let assertf cnd fmt =
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if not cnd then fail fmt
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else Format.ikfprintf (fun _ () -> ()) Format.str_formatter fmt
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let checkf cnd fmt =
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if not cnd then fail fmt
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else Format.ikfprintf (fun _ () -> true) Format.str_formatter fmt
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let check f x =
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assert (f x ; true) ;
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x
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let violates f x =
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assert (f x ; true) ;
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assert false
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type 'a or_error = ('a, exn * Caml.Printexc.raw_backtrace) result
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let or_error f x () =
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try Ok (f x) with exn -> Error (exn, Caml.Printexc.get_raw_backtrace ())
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(** Extensions *)
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module Invariant = struct
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include Base.Invariant
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let invariant here t sexp_of_t f =
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assert (
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( try f ()
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with exn ->
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let bt = Caml.Printexc.get_raw_backtrace () in
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let exn =
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Error.to_exn
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(Error.create_s
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(Base.Sexp.message "invariant failed"
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[ ("", sexp_of_exn exn)
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; ("", Source_code_position.sexp_of_t here)
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; ("", sexp_of_t t) ]))
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in
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Caml.Printexc.raise_with_backtrace exn bt ) ;
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true )
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end
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module Option = Option
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include Option.Monad_infix
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include Option.Monad_syntax
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module List = List
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module Vector = struct
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include Vector
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let pp sep pp_elt fs v = List.pp sep pp_elt fs (to_list v)
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end
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include Vector.Infix
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module type OrderedType = sig
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type t
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val compare : t -> t -> int
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val sexp_of_t : t -> Sexp.t
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end
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exception Duplicate
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module Set = struct
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module type S = sig
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type elt
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type t
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val compare : t -> t -> int
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val equal : t -> t -> bool
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val sexp_of_t : t -> Sexp.t
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val t_of_sexp : (Sexp.t -> elt) -> Sexp.t -> t
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val pp : elt pp -> t pp
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val pp_diff : elt pp -> (t * t) pp
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(* initial constructors *)
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val empty : t
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val of_ : elt -> t
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val of_option : elt option -> t
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val of_list : elt list -> t
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val of_vector : elt vector -> t
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(* constructors *)
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val add : t -> elt -> t
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val add_option : elt option -> t -> t
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val add_list : elt list -> t -> t
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val remove : t -> elt -> t
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val filter : t -> f:(elt -> bool) -> t
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val union : t -> t -> t
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val union_list : t list -> t
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val diff : t -> t -> t
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val inter : t -> t -> t
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val diff_inter : t -> t -> t * t
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(* queries *)
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val is_empty : t -> bool
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val mem : t -> elt -> bool
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val is_subset : t -> of_:t -> bool
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val disjoint : t -> t -> bool
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val max_elt : t -> elt option
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(* traversals *)
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val fold : t -> init:'s -> f:('s -> elt -> 's) -> 's
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end
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module Make (Elt : OrderedType) : S with type elt = Elt.t = struct
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module S = Caml.Set.Make (Elt)
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type elt = Elt.t
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type t = S.t
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let compare = S.compare
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let equal = S.equal
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let sexp_of_t s = List.sexp_of_t Elt.sexp_of_t (S.elements s)
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let t_of_sexp elt_of_sexp sexp =
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S.of_list (List.t_of_sexp elt_of_sexp sexp)
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let pp pp_elt fs x = List.pp ",@ " pp_elt fs (S.elements x)
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let pp_diff pp_elt fs (xs, ys) =
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let lose = S.diff xs ys and gain = S.diff ys xs in
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if not (S.is_empty lose) then
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Format.fprintf fs "-- %a" (pp pp_elt) lose ;
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if not (S.is_empty gain) then
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Format.fprintf fs "++ %a" (pp pp_elt) gain
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let empty = S.empty
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let of_ x = S.add x empty
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let of_option = Option.fold ~f:(fun x y -> S.add y x) ~init:empty
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let of_list = S.of_list
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let of_vector x = S.of_list (Vector.to_list x)
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let add s e = S.add e s
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let add_option yo x = Option.fold ~f:(fun x y -> S.add y x) ~init:x yo
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let add_list ys x = List.fold ~f:(fun x y -> S.add y x) ~init:x ys
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let remove s e = S.remove e s
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let filter s ~f = S.filter f s
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let union = S.union
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let union_list ss = List.fold ss ~init:empty ~f:union
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let diff = S.diff
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let inter = S.inter
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let diff_inter x y = (S.diff x y, S.inter x y)
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let is_empty = S.is_empty
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let mem s e = S.mem e s
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let is_subset x ~of_ = S.subset x of_
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let disjoint = S.disjoint
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let max_elt = S.max_elt_opt
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let fold s ~init:z ~f = S.fold (fun z x -> f x z) s z
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end
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end
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module Map = struct
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module type S = sig
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type key
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type +'a t
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val compare : ('a -> 'a -> int) -> 'a t -> 'a t -> int
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val equal : ('a -> 'a -> bool) -> 'a t -> 'a t -> bool
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val sexp_of_t : ('a -> Sexp.t) -> 'a t -> Sexp.t
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val t_of_sexp : (Sexp.t -> key) -> (Sexp.t -> 'a) -> Sexp.t -> 'a t
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val pp : key pp -> 'a pp -> 'a t pp
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val pp_diff :
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data_equal:('a -> 'a -> bool)
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-> key pp
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-> 'a pp
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-> ('a * 'a) pp
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-> ('a t * 'a t) pp
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(* initial constructors *)
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val empty : 'a t
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(* constructors *)
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val set : 'a t -> key:key -> data:'a -> 'a t
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val add_exn : 'a t -> key:key -> data:'a -> 'a t
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val add_multi : 'a list t -> key:key -> data:'a -> 'a list t
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val remove : 'a t -> key -> 'a t
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val update : 'a t -> key -> f:('a option -> 'a) -> 'a t
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val merge :
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'a t
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-> 'b t
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-> f:
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( key:key
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-> [`Both of 'a * 'b | `Left of 'a | `Right of 'b]
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-> 'c option)
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-> 'c t
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val merge_skewed :
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'a t -> 'a t -> combine:(key:key -> 'a -> 'a -> 'a) -> 'a t
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val map : 'a t -> f:('a -> 'b) -> 'b t
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val filter_keys : 'a t -> f:(key -> bool) -> 'a t
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val filter_mapi : 'a t -> f:(key:key -> data:'a -> 'b option) -> 'b t
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(* queries *)
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val is_empty : 'b t -> bool
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val length : 'b t -> int
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val mem : 'a t -> key -> bool
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val find : 'a t -> key -> 'a option
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val find_and_remove : 'a t -> key -> ('a * 'a t) option
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val find_multi : 'a list t -> key -> 'a list
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val data : 'a t -> 'a list
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val to_alist : 'a t -> (key * 'a) list
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(* traversals *)
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val iter : 'a t -> f:('a -> unit) -> unit
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val iteri : 'a t -> f:(key:key -> data:'a -> unit) -> unit
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val for_alli : 'a t -> f:(key:key -> data:'a -> bool) -> bool
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val fold : 'a t -> init:'s -> f:(key:key -> data:'a -> 's -> 's) -> 's
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end
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module Make (Key : OrderedType) : S with type key = Key.t = struct
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module M = Caml.Map.Make (Key)
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type key = Key.t
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type 'a t = 'a M.t
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let compare = M.compare
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let equal = M.equal
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let sexp_of_t sexp_of_val m =
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List.sexp_of_t
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(Sexplib.Conv.sexp_of_pair Key.sexp_of_t sexp_of_val)
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(M.bindings m)
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let t_of_sexp key_of_sexp val_of_sexp sexp =
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Caml.List.fold_left
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(fun m (k, v) -> M.add k v m)
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M.empty
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(List.t_of_sexp
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(Sexplib.Conv.pair_of_sexp key_of_sexp val_of_sexp)
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sexp)
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let pp pp_k pp_v fs m =
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Format.fprintf fs "@[<1>[%a]@]"
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(List.pp ",@ " (fun fs (k, v) ->
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Format.fprintf fs "@[%a @<2>↦ %a@]" pp_k k pp_v v ))
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(M.bindings m)
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let pp_diff ~data_equal pp_key pp_val pp_diff_val fs (x, y) =
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let pp_diff_val fs = function
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| k, `Left v ->
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Format.fprintf fs "-- [@[%a@ @<2>↦ %a@]]" pp_key k pp_val v
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| k, `Right v ->
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Format.fprintf fs "++ [@[%a@ @<2>↦ %a@]]" pp_key k pp_val v
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| k, `Unequal vv ->
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Format.fprintf fs "[@[%a@ @<2>↦ %a@]]" pp_key k pp_diff_val vv
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in
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let sd =
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M.merge
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(fun _ v1o v2o ->
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match (v1o, v2o) with
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| Some v1, Some v2 when not (data_equal v1 v2) ->
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Some (`Unequal (v1, v2))
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| Some v1, None -> Some (`Left v1)
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| None, Some v2 -> Some (`Right v2)
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| _ -> None )
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x y
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in
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if not (M.is_empty sd) then
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Format.fprintf fs "[@[<hv>%a@]];@ "
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(List.pp ";@ " pp_diff_val)
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(M.bindings sd)
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exception Duplicate
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let empty = M.empty
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let set m ~key ~data = M.add key data m
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let add_exn m ~key ~data =
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M.update key
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(function None -> Some data | Some _ -> raise Duplicate)
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m
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let add_multi m ~key ~data =
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M.update key
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(function None -> Some [data] | Some vs -> Some (data :: vs))
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m
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let remove m k = M.remove k m
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let update m k ~f = M.update k (fun vo -> Some (f vo)) m
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let merge m n ~f =
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M.merge
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(fun k v1o v2o ->
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match (v1o, v2o) with
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| Some v1, Some v2 -> f ~key:k (`Both (v1, v2))
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| Some v1, None -> f ~key:k (`Left v1)
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| None, Some v2 -> f ~key:k (`Right v2)
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| None, None -> None )
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m n
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let merge_skewed m n ~combine =
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M.merge
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(fun k v1o v2o ->
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match (v1o, v2o) with
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| Some v1, Some v2 -> Some (combine ~key:k v1 v2)
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| Some _, None -> v1o
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| None, Some _ -> v2o
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| None, None -> None )
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m n
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let map m ~f = M.map f m
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let filter_keys m ~f = M.filter (fun k _ -> f k) m
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let filter_mapi m ~f =
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M.fold
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(fun k v m ->
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match f ~key:k ~data:v with Some v' -> M.add k v' m | None -> m )
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m M.empty
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let is_empty = M.is_empty
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let length = M.cardinal
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let mem m k = M.mem k m
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let find m k = M.find_opt k m
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let find_and_remove m k =
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let found = ref None in
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let m =
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M.update k
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(fun v ->
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found := v ;
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None )
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m
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in
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let+ v = !found in
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(v, m)
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let find_multi m k = try M.find k m with Not_found -> []
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let data m = M.fold (fun _ v s -> v :: s) m []
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let to_alist = M.bindings
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let iter m ~f = M.iter (fun _ v -> f v) m
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let iteri m ~f = M.iter (fun k v -> f ~key:k ~data:v) m
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let for_alli m ~f = M.for_all (fun key data -> f ~key ~data) m
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let fold m ~init ~f = M.fold (fun key data s -> f ~key ~data s) m init
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end
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end
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module Qset = struct
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include Qset
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let pp sep pp_elt fs s = List.pp sep pp_elt fs (to_list s)
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end
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module Array = struct
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include Base.Array
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let pp sep pp_elt fs a = List.pp sep pp_elt fs (to_list a)
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end
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module String = struct
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include String
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let t_of_sexp = Sexplib.Conv.string_of_sexp
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let sexp_of_t = Sexplib.Conv.sexp_of_string
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module Map = Map.Make (String)
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end
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module Q = struct
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let pp = Q.pp_print
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let hash = Hashtbl.hash
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let hash_fold_t s q = Int.hash_fold_t s (hash q)
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let sexp_of_t q = Sexp.Atom (Q.to_string q)
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let t_of_sexp = function
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| Sexp.Atom s -> Q.of_string s
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| _ -> assert false
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let of_z = Q.of_bigint
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include Q
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end
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module Z = struct
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let pp = Z.pp_print
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let hash = [%hash: Z.t]
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let hash_fold_t s z = Int.hash_fold_t s (hash z)
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let sexp_of_t z = Sexp.Atom (Z.to_string z)
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let t_of_sexp = function
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| Sexp.Atom s -> Z.of_string s
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| _ -> assert false
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(* the signed 1-bit integers are -1 and 0 *)
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let true_ = Z.minus_one
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let false_ = Z.zero
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let of_bool = function true -> true_ | false -> false_
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let is_true = Z.equal true_
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let is_false = Z.equal false_
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include Z
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end
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