Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/js/src/util/DiagnosticAssertions.h b/js/src/util/DiagnosticAssertions.h
new file mode 100644
index 0000000000..66d59cec48
--- /dev/null
+++ b/js/src/util/DiagnosticAssertions.h
@@ -0,0 +1,31 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef util_DiagnosticAssertions_h
+#define util_DiagnosticAssertions_h
+
+#include "mozilla/Assertions.h"
+#include "mozilla/Likely.h"
+
+#include "jstypes.h"
+
+/* Crash diagnostics by default in debug and on nightly channel. */
+#if defined(DEBUG) || defined(NIGHTLY_BUILD)
+#  define JS_CRASH_DIAGNOSTICS 1
+#endif
+
+#if defined(JS_DEBUG)
+#  define JS_DIAGNOSTICS_ASSERT(expr) MOZ_ASSERT(expr)
+#elif defined(JS_CRASH_DIAGNOSTICS)
+#  define JS_DIAGNOSTICS_ASSERT(expr)         \
+    do {                                      \
+      if (MOZ_UNLIKELY(!(expr))) MOZ_CRASH(); \
+    } while (0)
+#else
+#  define JS_DIAGNOSTICS_ASSERT(expr) ((void)0)
+#endif
+
+#endif /* util_DiagnosticAssertions_h */