1Longident(3) OCaml library Longident(3)
2
3
4
6 Longident - Long identifiers, used in parsetree.
7
9 Module Longident
10
12 Module Longident
13 : sig end
14
15
16 Long identifiers, used in parsetree.
17
18 Warning: this module is unstable and part of Compiler_libs .
19
20 To print a longident, see Pprintast.longident , using Format.asprintf
21 to convert to a string.
22
23
24
25
26
27 type t =
28 | Lident of string
29 | Ldot of t * string
30 | Lapply of t * t
31
32
33
34
35
36 val flatten : t -> string list
37
38
39
40
41 val unflatten : string list -> t option
42
43 For a non-empty list l , unflatten l is Some lid where lid is the long
44 identifier created by concatenating the elements of l with Ldot . un‐
45 flatten [] is None .
46
47
48
49 val last : t -> string
50
51
52
53
54 val parse : string -> t
55
56 This function is broken on identifiers that are not just
57 "Word.Word.word"; for example, it returns incorrect results on infix
58 operators and extended module paths.
59
60 If you want to generate long identifiers that are a list of dot-sepa‐
61 rated identifiers, the function Longident.unflatten is safer and
62 faster. Longident.unflatten is available since OCaml 4.06.0.
63
64 If you want to parse any identifier correctly, use the long-identifiers
65 functions from the Parse module, in particular Parse.longident . They
66 are available since OCaml 4.11, and also provide proper input-location
67 support.
68
69
70
71
72
73OCamldoc 2022-07-22 Longident(3)