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73 lines
2.5 KiB
OCaml
73 lines
2.5 KiB
OCaml
(* This file is part of the Catala compiler, a specification language for tax
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and social benefits computation rules. Copyright (C) 2020-2022 Inria,
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contributor: Louis Gesbert <louis.gesbert@inria.fr>
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Licensed under the Apache License, Version 2.0 (the "License"); you may not
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use this file except in compliance with the License. You may obtain a copy of
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the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations under
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the License. *)
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open Definitions
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(** {1 Variables and their collections} *)
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(** This module provides types and helpers for Bindlib variables on the [gexpr]
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type *)
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type 'e t = ('a, 't) naked_gexpr Bindlib.var constraint 'e = ('a, 't) gexpr
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type 'e vars = ('a, 't) naked_gexpr Bindlib.mvar constraint 'e = ('a, 't) gexpr
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val make : string -> 'e t
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val compare : 'e t -> 'e t -> int
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val eq : 'e t -> 'e t -> bool
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val translate : 'e1 t -> 'e2 t
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(** Needed when converting from one AST type to another. See the note of caution
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on [Bindlib.copy_var]. *)
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type 'e var = 'e t
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(** Alias to allow referring to the type in the submodules *)
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(** Wrapper over [Set.S] but with a type variable for the AST type parameters.
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Extend as needed *)
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module Set : sig
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type 'e t
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val empty : 'e t
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val singleton : 'e var -> 'e t
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val add : 'e var -> 'e t -> 'e t
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val remove : 'e var -> 'e t -> 'e t
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val union : 'e t -> 'e t -> 'e t
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val mem : 'e var -> 'e t -> bool
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val of_list : 'e var list -> 'e t
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val elements : 'e t -> 'e var list
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val diff : 'e t -> 'e t -> 'e t
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end
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(** Wrapper over [Map.S] but with a type variable for the AST type parameters.
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Extend as needed *)
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module Map : sig
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type ('e, 'x) t
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val empty : ('e, 'x) t
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val singleton : 'e var -> 'x -> ('e, 'x) t
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val add : 'e var -> 'x -> ('e, 'x) t -> ('e, 'x) t
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val update : 'e var -> ('x option -> 'x option) -> ('e, 'x) t -> ('e, 'x) t
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val find : 'e var -> ('e, 'x) t -> 'x
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val find_opt : 'e var -> ('e, 'x) t -> 'x option
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val bindings : ('e, 'x) t -> ('e var * 'x) list
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val mem : 'e var -> ('e, 'x) t -> bool
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val union :
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('e var -> 'x -> 'x -> 'x option) -> ('e, 'x) t -> ('e, 'x) t -> ('e, 'x) t
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val fold : ('e var -> 'x -> 'acc -> 'acc) -> ('e, 'x) t -> 'acc -> 'acc
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end
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