spread

swc-project · Nov 29, 2022 · 46536f9 · 46536f9
1 parent d8c6da6
commit 46536f9
Showing 1 changed file with 12 additions and 1 deletion.
diff --git a/crates/swc_ecma_parser/src/parser/expr.rs b/crates/swc_ecma_parser/src/parser/expr.rs
@@ -746,9 +746,20 @@ impl<I: Tokens> Parser<I> {
         let start = cur_pos!(self);
 
         if eat!(self, "...") {
-            let spread = Some(span!(self, start));
+            let spread_span = span!(self, start);
+            let spread = Some(spread_span);
             self.include_in_expr(true)
                 .parse_assignment_expr()
+                .map_err(|err| {
+                    Error::new(
+                        err.span(),
+                        SyntaxError::WithLabel {
+                            inner: Box::new(err),
+                            span: spread_span,
+                            note: "An expression should follow '...'",
+                        },
+                    )
+                })
                 .map(|expr| ExprOrSpread { spread, expr })
         } else {
             self.parse_assignment_expr()