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-rw-r--r--crates/libsyntax2/src/grammar/items/use_item.rs68
1 files changed, 0 insertions, 68 deletions
diff --git a/crates/libsyntax2/src/grammar/items/use_item.rs b/crates/libsyntax2/src/grammar/items/use_item.rs
deleted file mode 100644
index 1ee4349fd..000000000
--- a/crates/libsyntax2/src/grammar/items/use_item.rs
+++ /dev/null
@@ -1,68 +0,0 @@
1use super::*;
2
3pub(super) fn use_item(p: &mut Parser) {
4 assert!(p.at(USE_KW));
5 p.bump();
6 use_tree(p);
7 p.expect(SEMI);
8}
9
10fn use_tree(p: &mut Parser) {
11 let la = p.nth(1);
12 let m = p.start();
13 match (p.current(), la) {
14 (STAR, _) => p.bump(),
15 (COLONCOLON, STAR) => {
16 p.bump();
17 p.bump();
18 }
19 (L_CURLY, _) | (COLONCOLON, L_CURLY) => {
20 if p.at(COLONCOLON) {
21 p.bump();
22 }
23 use_tree_list(p);
24 }
25 _ if paths::is_path_start(p) => {
26 paths::use_path(p);
27 match p.current() {
28 AS_KW => {
29 opt_alias(p);
30 }
31 COLONCOLON => {
32 p.bump();
33 match p.current() {
34 STAR => {
35 p.bump();
36 }
37 L_CURLY => use_tree_list(p),
38 _ => {
39 // is this unreachable?
40 p.error("expected `{` or `*`");
41 }
42 }
43 }
44 _ => (),
45 }
46 }
47 _ => {
48 m.abandon(p);
49 p.err_and_bump("expected one of `*`, `::`, `{`, `self`, `super`, `indent`");
50 return;
51 }
52 }
53 m.complete(p, USE_TREE);
54}
55
56pub(crate) fn use_tree_list(p: &mut Parser) {
57 assert!(p.at(L_CURLY));
58 let m = p.start();
59 p.bump();
60 while !p.at(EOF) && !p.at(R_CURLY) {
61 use_tree(p);
62 if !p.at(R_CURLY) {
63 p.expect(COMMA);
64 }
65 }
66 p.expect(R_CURLY);
67 m.complete(p, USE_TREE_LIST);
68}