js-on-sx: lexer rejects bare backslash in source

2026-05-09 02:41:58 +00:00
parent 0b7d88bbe1
commit e5709c5aec
2 changed files with 4 additions and 0 deletions
--- a/lib/js/lexer.sx
+++ b/lib/js/lexer.sx
@@ -680,6 +680,8 @@
              (do (js-emit! "op" "^" start) (advance! 1)))
            ((= ch "~")
              (do (js-emit! "op" "~" start) (advance! 1)))
+            ((= ch "\\")
+              (error "Unexpected char '\\' in source"))
            (else (advance! 1)))))
      (define
        scan!