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-rw-r--r--src/grammar/expressions/mod.rs13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/grammar/expressions/mod.rs b/src/grammar/expressions/mod.rs
index e0b4ced74..c137fe654 100644
--- a/src/grammar/expressions/mod.rs
+++ b/src/grammar/expressions/mod.rs
@@ -183,6 +183,7 @@ fn postfix_expr(p: &mut Parser, mut lhs: CompletedMarker) -> CompletedMarker {
183 m.complete(p, RANGE_EXPR) 183 m.complete(p, RANGE_EXPR)
184 } 184 }
185 QUESTION => try_expr(p, lhs), 185 QUESTION => try_expr(p, lhs),
186 AS_KW => cast_expr(p, lhs),
186 _ => break, 187 _ => break,
187 } 188 }
188 } 189 }
@@ -260,6 +261,18 @@ fn try_expr(p: &mut Parser, lhs: CompletedMarker) -> CompletedMarker {
260 m.complete(p, TRY_EXPR) 261 m.complete(p, TRY_EXPR)
261} 262}
262 263
264// test cast_expr
265// fn foo() {
266// 82 as i32;
267// }
268fn cast_expr(p: &mut Parser, lhs: CompletedMarker) -> CompletedMarker {
269 assert!(p.at(AS_KW));
270 let m = lhs.precede(p);
271 p.bump();
272 types::type_(p);
273 m.complete(p, CAST_EXPR)
274}
275
263fn arg_list(p: &mut Parser) { 276fn arg_list(p: &mut Parser) {
264 assert!(p.at(L_PAREN)); 277 assert!(p.at(L_PAREN));
265 let m = p.start(); 278 let m = p.start();