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54 lines
2.3 KiB
OCaml
54 lines
2.3 KiB
OCaml
(* This file is part of the Catala compiler, a specification language for tax and social benefits
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computation rules. Copyright (C) 2020 Inria, contributor: Denis Merigoux
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<denis.merigoux@inria.fr>
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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in compliance with the License. You may obtain a copy of 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 distributed under the License
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is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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or implied. See the License for the specific language governing permissions and limitations under
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the License. *)
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(** Error formatting and helper functions *)
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(** {1 Error exception and printing} *)
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exception StructuredError of (string * (string option * Pos.t) list)
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(** The payload of the expression is a main error message, with a list of secondary positions
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related to the error, each carrying an optional secondary message to describe what is pointed by
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the position. *)
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let print_structured_error (msg : string) (pos : (string option * Pos.t) list) : string =
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Printf.sprintf "%s%s%s" msg
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(if List.length pos = 0 then "" else "\n\n")
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(String.concat "\n\n"
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(List.map
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(fun (msg, pos) ->
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Printf.sprintf "%s%s"
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(match msg with None -> "" | Some msg -> msg ^ "\n")
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(Pos.retrieve_loc_text pos))
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pos))
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(** {1 Error exception and printing} *)
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let raise_spanned_error (msg : string) ?(span_msg : string option) (span : Pos.t) : 'a =
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raise (StructuredError (msg, [ (span_msg, span) ]))
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let raise_multispanned_error (msg : string) (spans : (string option * Pos.t) list) =
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raise (StructuredError (msg, spans))
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let raise_error (msg : string) : 'a = raise (StructuredError (msg, []))
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(** {1 Warning printing}*)
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let print_multispanned_warning (msg : string) (pos : (string option * Pos.t) list) : unit =
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Cli.warning_print (print_structured_error msg pos)
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let print_spanned_warning (msg : string) ?(span_msg : string option) (span : Pos.t) : unit =
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print_multispanned_warning msg [ (span_msg, span) ]
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let print_warning (msg : string) : unit = print_multispanned_warning msg []
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