package coq

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package coq
Legend:
Library
Module
Module type
Parameter
Class
Class type
Basic types
type source =
  1. | InFile of string
  2. | ToplevelInput
type t = {
  1. fname : source;
    (*

    filename or toplevel input

    *)
  2. line_nb : int;
    (*

    start line number

    *)
  3. bol_pos : int;
    (*

    position of the beginning of start line

    *)
  4. line_nb_last : int;
    (*

    end line number

    *)
  5. bol_pos_last : int;
    (*

    position of the beginning of end line

    *)
  6. bp : int;
    (*

    start position

    *)
  7. ep : int;
    (*

    end position

    *)
}
Location manipulation

This is inherited from CAMPL4/5.

val create : source -> int -> int -> int -> int -> t

Create a location from a filename, a line number, a position of the beginning of the line, a start and end position

val initial : source -> t

Create a location corresponding to the beginning of the given source

val unloc : t -> int * int

Return the start and end position of a location

val make_loc : (int * int) -> t

Make a location out of its start and end position

val merge : t -> t -> t
val merge_opt : t option -> t option -> t option

Merge locations, usually generating the largest possible span

val sub : t -> int -> int -> t

sub loc sh len is the location loc shifted with sh characters and with length len. The previous ending position of the location is lost.

val after : t -> int -> int -> t

after loc sh len is the location just after loc (starting at the end position of loc) shifted with sh characters and of length len.

val finer : t option -> t option -> bool

Answers true when the first location is more defined, or, when both defined, included in the second one

val shift_loc : int -> int -> t -> t

shift_loc loc n p shifts the beginning of location by n and the end by p; it is assumed that the shifts do not change the lines at which the location starts and ends

Located exceptions
val add_loc : Exninfo.info -> t -> Exninfo.info

Adding location to an exception

val get_loc : Exninfo.info -> t option

Retrieving the optional location of an exception

val raise : ?loc:t -> exn -> 'a

raise loc e is the same as Pervasives.raise (add_loc e loc).

Objects with location information
type 'a located = t option * 'a
val tag : ?loc:t -> 'a -> 'a located

Embed a location in a type

val map : ('a -> 'b) -> 'a located -> 'b located

Modify an object carrying a location

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