hackc: exit on invalid token

1 files changed, 7 insertions, 0 deletions

diff --git a/projects/hackc/parser.py b/projects/hackc/parser.py
index c3056d7..400b096 100644
--- a/projects/hackc/parser.py
+++ b/projects/hackc/parser.py
@@ -1,4 +1,5 @@
 from .tokens import Token
+from .utils import *
 
 KEYWORDS = [
     "class",
@@ -83,3 +84,9 @@ class Parser:
                 if token is not None:
                     self.tokens.append(token)
                     pos += token.length()
+                else:
+                    # invalid token
+                    print_err(f"{self._fp}:{line_no + 1}")
+                    print_err(line)
+                    print_err(" " * pos + f"^ Invalid token")
+                    exit(EXIT_CODE_INVALID_TOKEN)