catala/compiler/dcalc/typing.mli

32 lines
1.4 KiB
OCaml

(* This file is part of the Catala compiler, a specification language for tax
and social benefits computation rules. Copyright (C) 2020 Inria, contributor:
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. *)
(** Typing for the default calculus. Because of the error terms, we perform type
inference using the classical W algorithm with union-find unification. *)
open Shared_ast
val infer_types : decl_ctx -> untyped Ast.expr -> typed Ast.expr Bindlib.box
(** Infers types everywhere on the given expression, and adds (or replaces) type
annotations on each node *)
val infer_type : decl_ctx -> 'm Ast.expr -> typ
(** Gets the outer type of the given expression, using either the existing
annotations or inference *)
val check_type : decl_ctx -> 'm Ast.expr -> typ -> unit
val infer_types_program : untyped Ast.program -> typed Ast.program