From b456aa44a172171d4b6120ec566c1499ec25a690 Mon Sep 17 00:00:00 2001
From: LLLL Colonq <llll@colonq>
Date: Fri, 5 Jun 2026 20:32:17 -0400
Subject: Fix integer parsing

---
 src/parser.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'src/parser.c')

diff --git a/src/parser.c b/src/parser.c
index 5dc57db..77b4172 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -129,7 +129,16 @@ pit_value pit_parse(pit_runtime *rt, pit_parser *st, bool *eof) {
         i64 idx = st->cur.start;
         i64 base = 10;
         i64 total = 0;
+        bool neg = false;
         char c = st->lexer->input[idx++];
+        if (c == '-') {
+            neg = true;
+            if (idx < st->cur.end) {
+                c = st->lexer->input[idx++];
+            } else {
+                pit_error(rt, "malformed negative integer literal"); return PIT_NIL;
+            }
+        }
         if (c == '0' && idx + 1 < st->cur.end) {
             switch (st->lexer->input[idx++]) {
             case 'b': base = 2; break;
@@ -145,7 +154,7 @@ pit_value pit_parse(pit_runtime *rt, pit_parser *st, bool *eof) {
                 pit_error(rt, "integer literal too large"); return PIT_NIL;
             }
         }
-        return pit_integer_new(rt, total);
+        return pit_integer_new(rt, neg ? -total : total);
     }
     case PIT_LEX_TOKEN_STRING_LITERAL: {
         char buf[256] = {0};
-- 
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