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authorAleksey Kladov <[email protected]>2018-02-02 19:08:14 +0000
committerAleksey Kladov <[email protected]>2018-02-02 19:08:37 +0000
commitc9318e046c44fd3c161ff1253eb41c108e4733e3 (patch)
tree210819a7f29195b3c50101f87adf67bffe78413b /src/parser/event_parser/grammar
parent3c6ccfe6474cf15e7c59c8b6c01d8a1b3604ba02 (diff)
G: extern functions
Diffstat (limited to 'src/parser/event_parser/grammar')
-rw-r--r--src/parser/event_parser/grammar/items/mod.rs43
1 files changed, 39 insertions, 4 deletions
diff --git a/src/parser/event_parser/grammar/items/mod.rs b/src/parser/event_parser/grammar/items/mod.rs
index 4d8783735..a6d8f375c 100644
--- a/src/parser/event_parser/grammar/items/mod.rs
+++ b/src/parser/event_parser/grammar/items/mod.rs
@@ -19,18 +19,36 @@ fn item(p: &mut Parser) {
19 visibility(p); 19 visibility(p);
20 let la = p.nth(1); 20 let la = p.nth(1);
21 let item_kind = match p.current() { 21 let item_kind = match p.current() {
22 USE_KW => {
23 use_item(p);
24 USE_ITEM
25 }
22 EXTERN_KW if la == CRATE_KW => { 26 EXTERN_KW if la == CRATE_KW => {
23 extern_crate_item(p); 27 extern_crate_item(p);
24 EXTERN_CRATE_ITEM 28 EXTERN_CRATE_ITEM
25 } 29 }
30 EXTERN_KW => {
31 abi(p);
32 match p.current() {
33 FN_KW => {
34 fn_item(p);
35 FN_ITEM
36 }
37 L_CURLY => {
38 extern_block(p);
39 EXTERN_BLOCK
40 }
41 _ => {
42 item.abandon(p);
43 p.error().message("expected `fn` or `{`").emit();
44 return;
45 }
46 }
47 }
26 MOD_KW => { 48 MOD_KW => {
27 mod_item(p); 49 mod_item(p);
28 MOD_ITEM 50 MOD_ITEM
29 } 51 }
30 USE_KW => {
31 use_item(p);
32 USE_ITEM
33 }
34 STRUCT_KW => { 52 STRUCT_KW => {
35 structs::struct_item(p); 53 structs::struct_item(p);
36 STRUCT_ITEM 54 STRUCT_ITEM
@@ -155,6 +173,12 @@ fn mod_item(p: &mut Parser) {
155 } 173 }
156} 174}
157 175
176fn extern_block(p: &mut Parser) {
177 assert!(p.at(L_CURLY));
178 p.bump();
179 p.expect(R_CURLY);
180}
181
158pub(super) fn is_use_tree_start(kind: SyntaxKind) -> bool { 182pub(super) fn is_use_tree_start(kind: SyntaxKind) -> bool {
159 kind == STAR || kind == L_CURLY 183 kind == STAR || kind == L_CURLY
160} 184}
@@ -225,6 +249,17 @@ fn use_item(p: &mut Parser) {
225 } 249 }
226} 250}
227 251
252fn abi(p: &mut Parser) {
253 assert!(p.at(EXTERN_KW));
254 let abi = p.start();
255 p.bump();
256 match p.current() {
257 STRING | RAW_STRING => p.bump(),
258 _ => (),
259 }
260 abi.complete(p, ABI);
261}
262
228fn fn_item(p: &mut Parser) { 263fn fn_item(p: &mut Parser) {
229 assert!(p.at(FN_KW)); 264 assert!(p.at(FN_KW));
230 p.bump(); 265 p.bump();