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|
(* TEST
flags = "-I ${ocamlsrcdir}/parsing";
include ocamlcommon;
expect;
*)
[@@@alert "-deprecated"]
module L = Longident
[%%expect {|
module L = Longident
|}]
let flatten_ident = L.flatten (L.Lident "foo")
[%%expect {|
val flatten_ident : string list = ["foo"]
|}]
let flatten_dot = L.flatten (L.Ldot (L.Lident "M", "foo"))
[%%expect {|
val flatten_dot : string list = ["M"; "foo"]
|}]
let flatten_apply = L.flatten (L.Lapply (L.Lident "F", L.Lident "X"))
[%%expect {|
>> Fatal error: Longident.flat
Exception: Misc.Fatal_error.
|}]
let unflatten_empty = L.unflatten []
[%%expect {|
val unflatten_empty : L.t option = None
|}]
let unflatten_sing = L.unflatten ["foo"]
[%%expect {|
val unflatten_sing : L.t option = Some (L.Lident "foo")
|}]
let unflatten_dot = L.unflatten ["M"; "N"; "foo"]
[%%expect {|
val unflatten_dot : L.t option =
Some (L.Ldot (L.Ldot (L.Lident "M", "N"), "foo"))
|}]
let last_ident = L.last (L.Lident "foo")
[%%expect {|
val last_ident : string = "foo"
|}]
let last_dot = L.last (L.Ldot (L.Lident "M", "foo"))
[%%expect {|
val last_dot : string = "foo"
|}]
let last_apply = L.last (L.Lapply (L.Lident "F", L.Lident "X"))
[%%expect {|
>> Fatal error: Longident.last
Exception: Misc.Fatal_error.
|}]
let last_dot_apply = L.last
(L.Ldot (L.Lapply (L.Lident "F", L.Lident "X"), "foo"))
[%%expect {|
val last_dot_apply : string = "foo"
|}];;
type parse_result = { flat: L.t; spec:L.t; any_is_correct:bool }
let test specialized s =
let spec = specialized (Lexing.from_string s) in
{ flat = L.parse s;
spec;
any_is_correct = Parse.longident (Lexing.from_string s) = spec;
}
let parse_empty = L.parse ""
let parse_empty_val = Parse.longident (Lexing.from_string "")
[%%expect {|
type parse_result = { flat : L.t; spec : L.t; any_is_correct : bool; }
val test : (Lexing.lexbuf -> L.t) -> string -> parse_result = <fun>
val parse_empty : L.t = L.Lident ""
Exception:
Syntaxerr.Error
(Syntaxerr.Other
{Location.loc_start =
{Lexing.pos_fname = ""; pos_lnum = 1; pos_bol = 0; pos_cnum = 0};
loc_end =
{Lexing.pos_fname = ""; pos_lnum = 1; pos_bol = 0; pos_cnum = 0};
loc_ghost = false}).
|}]
let parse_ident = test Parse.val_ident "foo"
[%%expect {|
val parse_ident : parse_result =
{flat = L.Lident "foo"; spec = L.Lident "foo"; any_is_correct = true}
|}]
let parse_dot = test Parse.val_ident "M.foo"
[%%expect {|
val parse_dot : parse_result =
{flat = L.Ldot (L.Lident "M", "foo"); spec = L.Ldot (L.Lident "M", "foo");
any_is_correct = true}
|}]
let parse_path = test Parse.val_ident "M.N.foo"
[%%expect {|
val parse_path : parse_result =
{flat = L.Ldot (L.Ldot (L.Lident "M", "N"), "foo");
spec = L.Ldot (L.Ldot (L.Lident "M", "N"), "foo"); any_is_correct = true}
|}]
let parse_complex = test Parse.type_ident "M.F(M.N).N.foo"
(* the result below is a known misbehavior of Longident.parse
which does not handle applications properly. *)
[%%expect {|
val parse_complex : parse_result =
{flat =
L.Ldot (L.Ldot (L.Ldot (L.Ldot (L.Lident "M", "F(M"), "N)"), "N"), "foo");
spec =
L.Ldot
(L.Ldot
(L.Lapply (L.Ldot (L.Lident "M", "F"), L.Ldot (L.Lident "M", "N")),
"N"),
"foo");
any_is_correct = true}
|}]
let parse_op = test Parse.val_ident "M.(.%.()<-)"
(* the result below is another known misbehavior of Longident.parse. *)
[%%expect {|
val parse_op : parse_result =
{flat = L.Ldot (L.Ldot (L.Ldot (L.Lident "M", "("), "%"), "()<-)");
spec = L.Ldot (L.Lident "M", ".%.()<-"); any_is_correct = true}
|}]
let parse_let_op = test Parse.val_ident "M.(let+*!)"
[%%expect {|
val parse_let_op : parse_result =
{flat = L.Ldot (L.Lident "M", "(let+*!)");
spec = L.Ldot (L.Lident "M", "let+*!"); any_is_correct = true}
|}]
let constr = test Parse.constr_ident "true"
[%%expect{|
val constr : parse_result =
{flat = L.Lident "true"; spec = L.Lident "true"; any_is_correct = true}
|}]
let prefix_constr = test Parse.constr_ident "A.B.C.(::)"
[%%expect{|
val prefix_constr : parse_result =
{flat = L.Ldot (L.Ldot (L.Ldot (L.Lident "A", "B"), "C"), "(::)");
spec = L.Ldot (L.Ldot (L.Ldot (L.Lident "A", "B"), "C"), "::");
any_is_correct = true}
|}]
let mod_ext = test Parse.extended_module_path "A.F(B.C(X)).G(Y).D"
[%%expect{|
val mod_ext : parse_result =
{flat =
L.Ldot (L.Ldot (L.Ldot (L.Ldot (L.Lident "A", "F(B"), "C(X))"), "G(Y)"),
"D");
spec =
L.Ldot
(L.Lapply
(L.Ldot
(L.Lapply (L.Ldot (L.Lident "A", "F"),
L.Lapply (L.Ldot (L.Lident "B", "C"), L.Lident "X")),
"G"),
L.Lident "Y"),
"D");
any_is_correct = true}
|}]
let string_of_longident lid = Format.asprintf "%a" Pprintast.longident lid
[%%expect{|
val string_of_longident : Longident.t -> string = <fun>
|}]
let str_empty = string_of_longident parse_empty
[%%expect {|
val str_empty : string = ""
|}]
let str_ident = string_of_longident parse_ident.flat
[%%expect {|
val str_ident : string = "foo"
|}]
let str_dot = string_of_longident parse_dot.flat
[%%expect {|
val str_dot : string = "M.foo"
|}]
let str_path = string_of_longident parse_path.flat
[%%expect {|
val str_path : string = "M.N.foo"
|}]
let str_complex = string_of_longident
(let (&.) p word = L.Ldot(p, word) in
L.Lapply(L.Lident "M" &. "F", L.Lident "M" &. "N") &. "N" &. "foo")
[%%expect{|
val str_complex : string = "M.F(M.N).N.foo"
|}]
|
