From 5b95abb249604e7df9be1d63b1f3dc85b8f5990b Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Sat, 13 Aug 2022 11:04:44 +0200
Subject: set more

---
 src/util.cff | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src/util.cff')

diff --git a/src/util.cff b/src/util.cff
index 70c80b4..9bb5db9 100644
--- a/src/util.cff
+++ b/src/util.cff
@@ -81,8 +81,10 @@ extern fn fatal(P *Parser, loc Loc, fmt *const u8, ...) void {
 extern fn internstr(s *const u8) *const u8 {
    static set Set<*const u8, struct {
       fn hash(s *const u8) u32 { return fnv1a_s(FNV1A_INI, s); }
-      fn eq(a *const u8, b *const u8) bool { return streq(a, b);  }
-      fn dup(s *const u8) *const u8 { return as(*const u8)xstrdup(s); }
+      fn eq(a *const u8, b *const u8) bool {
+         return a != #null and b != #null and streq(a, b);
+      }
+      fn dup(s *const u8) *const u8 { return xstrdup(s); }
    }> = {};
    return *set->intern(s);
 }
-- 
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