bendns' repos / rust-analyzer
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Diffstat (limited to 'crates/parser/src/grammar/expressions/atom.rs')
-rw-r--r--crates/parser/src/grammar/expressions/atom.rs13
1 files changed, 13 insertions, 0 deletions
diff --git a/crates/parser/src/grammar/expressions/atom.rs b/crates/parser/src/grammar/expressions/atom.rs
index d051dd2682..d8553d3f95 100644
--- a/crates/parser/src/grammar/expressions/atom.rs
+++ b/crates/parser/src/grammar/expressions/atom.rs
@@ -12,6 +12,8 @@ use super::*;
// let _ = r"d";
// let _ = b"e";
// let _ = br"f";
+// let _ = c"g";
+// let _ = cr"h";
// }
pub(crate) const LITERAL_FIRST: TokenSet = TokenSet::new(&[
T![true],
@@ -22,6 +24,7 @@ pub(crate) const LITERAL_FIRST: TokenSet = TokenSet::new(&[
CHAR,
STRING,
BYTE_STRING,
+ C_STRING,
]);
pub(crate) fn literal(p: &mut Parser<'_>) -> Option<CompletedMarker> {
@@ -181,6 +184,16 @@ fn tuple_expr(p: &mut Parser<'_>) -> CompletedMarker {
let mut saw_comma = false;
let mut saw_expr = false;
+
+ // test_err tuple_expr_leading_comma
+ // fn foo() {
+ // (,);
+ // }
+ if p.eat(T![,]) {
+ p.error("expected expression");
+ saw_comma = true;
+ }
+
while !p.at(EOF) && !p.at(T![')']) {
saw_expr = true;