Correctly parse negated literals as const args

2021-04-29 02:16:22 +02:00
parent 49b219b103
commit caee3a2eeb
3 changed files with 40 additions and 0 deletions
--- a/crates/parser/src/grammar/type_args.rs
+++ b/crates/parser/src/grammar/type_args.rs
@@ -59,6 +59,15 @@ fn generic_arg(p: &mut Parser) {
            expressions::literal(p);
            m.complete(p, CONST_ARG);
        }
+        // test const_generic_negated_literal
+        // fn f() { S::<-1> }
+        T![-] => {
+            let lm = p.start();
+            p.bump(T![-]);
+            expressions::literal(p);
+            lm.complete(p, PREFIX_EXPR);
+            m.complete(p, CONST_ARG);
+        }
        _ => {
            types::type_(p);
            m.complete(p, TYPE_ARG);