Convert parse errors to exceptions.

Parser no longer prints an error, but instead returns an exception ID
and message.

1 files changed, 2 insertions, 1 deletions

diff --git a/py/parse.h b/py/parse.h
index 7326243ea..be2073ae5 100644
--- a/py/parse.h
+++ b/py/parse.h
@@ -62,4 +62,5 @@ typedef enum {
     MP_PARSE_EVAL_INPUT,
 } mp_parse_input_kind_t;
 
-mp_parse_node_t mp_parse(struct _mp_lexer_t *lex, mp_parse_input_kind_t input_kind);
+// returns MP_PARSE_NODE_NULL on error, and then exc_id_out and exc_msg_out are valid
+mp_parse_node_t mp_parse(struct _mp_lexer_t *lex, mp_parse_input_kind_t input_kind, qstr *exc_id_out, const char **exc_msg_out);