package topkg

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Errors
Error messages

package topkg

topkg
- Topkg
  - Cmd
  - Conf
    
    OCaml
  - Exts
  - Fpath
  - Log
  - OS
    
    Cmd
    
    Dir
    
    Env
    
    File
  - Pkg
  - Private
    
    Codec
    
    Ipc
    
    Opam
    
    File
    
    Pkg
  - R
  - String
  - Vcs

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Result value combinators.

Errors

val reword_error : 
  ('b -> 'c) ->
  ('a, 'b) Result.result ->
  ('a, 'c) Result.result

reword_error reword r is:

r if r = Ok v
Error (reword e) if r = Error e

Error messages

type msg = [

| `Msg of string

]

The type for (error) messages.

val error_msg : string -> ('b, [> msg ]) Result.result

error_msg s is Error (`Msg s).

val error_msgf : 
  ('a, Format.formatter, unit, ('b, [> msg ]) Result.result) Pervasives.format4 ->
  'a

error_msgf fmt ... is an error formatted according to fmt.

val reword_error_msg : 
  ?replace:bool ->
  (string -> msg) ->
  ('a, msg) Result.result ->
  ('a, [> msg ]) Result.result

reword_error_msg ~replace reword r is like reword_error except if replace is false (default), the result of reword old_msg is concatened, on a new line to the old message.