package ppxlib

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Standard library for ppx rewriters

Install 

dune-project
 Dependency

github.com Edit opam file Versions (24)

Authors

  1. J
    Jane Street Group, LLC <opensource@janestreet.com>

Maintainers

  1. O
    opensource@janestreet.com

Sources

ppxlib-0.25.1.tbz
sha256=a51b3868029e62ff14a0f2bd8d278dacfc0c3fc5b22d484a296be90c53e4ffd7
sha512=6a6d9af49344e901cc9e6da7bcf38c2973705c8cee4cff1c64c0393e9ccc55a6abec1f58d5b56d0807939a3741bec722ee7bfc244f94619167a30438f182488a

doc/ppxlib.astlib/Astlib/Location/index.html

Module Astlib.LocationSource

Source code locations (ranges of positions), used in parsetrees

type t = Ocaml_common.Location.t = {
  1. loc_start : Lexing.position;
  2. loc_end : Lexing.position;
  3. loc_ghost : bool;
}

The location type

type 'a loc = 'a Ocaml_common.Location.loc = {
  1. txt : 'a;
  2. loc : t;
}

A located type

Sourcemodule Error : sig ... end
Sourceval set_input_name : string -> unit

Set the name of the input source, e.g. the file name.

val none : t

An arbitrary value of type t; describes an empty ghost range.

Automatically reporting errors for raised exceptions

val register_error_of_exn : (exn -> Error.t option) -> unit

Each compiler module which defines a custom type of exception which can surface as a user-visible error should register a "printer" for this exception using register_error_of_exn. The result of the printer is an error value containing a location, a message, and optionally sub-messages (each of them being located as well).

exception Error of Error.t

Located exception.

Sourceval raise_errorf : ?loc:t -> ('a, Format.formatter, unit, 'b) format4 -> 'a

Raise a located exception.

val report_exception : Format.formatter -> exn -> unit

Report an exception on the given formatter