Module Linkdeps

module Linkdeps: sig .. end
type t

The state of the linking check. It keeps track of compilation units provided and required so far.

type compunit = string 
type filename = string 
val create : complete:bool -> t

create ~complete returns an empty state. If complete is true, missing compilation units will be treated as errors.

val add : t ->
       filename:filename ->
       compunit:compunit ->
       provides:compunit list -> requires:compunit list -> unit

add t ~filename ~compunit ~provides ~requires registers the compilation unit compunit found in filename to t.

  • provides are units and sub-units provided by compunit
  • requires are units required by compunit

add should be called in reverse topological order.

val required : t -> compunit -> bool

required t compunit returns true if compunit is a dependency of previously added compilation units.

type compunit_and_source = {
   compunit : compunit;
   filename : filename;
} 
type error =
| Missing_implementations of (compunit * compunit_and_source list) list
| Wrong_link_order of (compunit_and_source * compunit_and_source list) list
| Multiple_definitions of (compunit * filename list) list 
val check : t -> error option

check t should be called once all the compilation units to be linked have been added. It returns some error if:

  • There are some missing implementations and complete is true
  • Some implementation appear before their dependencies
val report_error : print_filename:(Format.formatter -> string -> unit) ->
       Format.formatter -> error -> unit