From ff3cdbc3a078de1d54c13737264ed62f77ff1f50 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Wed, 17 Apr 2019 15:58:20 -0400
Subject: stage1 assertions always on, and have stack traces

---
 src/util.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/util.cpp')

diff --git a/src/util.cpp b/src/util.cpp
index 192d74e766..9a6a382993 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -10,17 +10,25 @@
 #include <stdarg.h>
 
 #include "util.hpp"
+#include "userland.h"
 
 void zig_panic(const char *format, ...) {
     va_list ap;
     va_start(ap, format);
     vfprintf(stderr, format, ap);
-    fprintf(stderr, "\n");
     fflush(stderr);
     va_end(ap);
+    stage2_panic(nullptr, 0);
     abort();
 }
 
+void assert(bool ok) {
+    if (!ok) {
+        const char *msg = "Assertion failed. This is a bug in the Zig compiler.";
+        stage2_panic(msg, strlen(msg));
+    }
+}
+
 uint32_t int_hash(int i) {
     return (uint32_t)(i % UINT32_MAX);
 }
-- 
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