catala/compiler/verification/io.mli
2022-08-22 19:28:21 +02:00

92 lines
2.4 KiB
OCaml

(* This file is part of the Catala compiler, a specification language for tax
and social benefits computation rules. Copyright (C) 2022 Inria, contributor:
Aymeric Fromherz <aymeric.fromherz@inria.fr>, Denis Merigoux
<denis.merigoux@inria.fr>
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy of
the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License. *)
(** Common code for handling the IO of all proof backends supported *)
open Utils
open Shared_ast
module type Backend = sig
val init_backend : unit -> unit
type backend_context
val make_context :
decl_ctx ->
(typed Dcalc.Ast.expr, typ Utils.Marked.pos) Var.Map.t ->
backend_context
type vc_encoding
val print_encoding : vc_encoding -> string
type model
type solver_result = ProvenTrue | ProvenFalse of model option | Unknown
val solve_vc_encoding : backend_context -> vc_encoding -> solver_result
val print_model : backend_context -> model -> string
val is_model_empty : model -> bool
val translate_expr :
backend_context ->
typed Dcalc.Ast.marked_expr ->
backend_context * vc_encoding
end
module type BackendIO = sig
val init_backend : unit -> unit
type backend_context
val make_context :
decl_ctx ->
(typed Dcalc.Ast.expr, typ Utils.Marked.pos) Var.Map.t ->
backend_context
type vc_encoding
val translate_expr :
backend_context ->
typed Dcalc.Ast.marked_expr ->
backend_context * vc_encoding
type model
type vc_encoding_result =
| Success of vc_encoding * backend_context
| Fail of string
val print_positive_result : Conditions.verification_condition -> string
val print_negative_result :
Conditions.verification_condition ->
backend_context ->
model option ->
string
val encode_and_check_vc :
decl_ctx ->
Conditions.verification_condition * vc_encoding_result ->
unit
end
module MakeBackendIO : functor (B : Backend) ->
BackendIO
with type vc_encoding = B.vc_encoding
and type backend_context = B.backend_context
and type model = B.model