Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 58 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testIsInsideNursery.cpp b/js/src/jsapi-tests/testIsInsideNursery.cpp
new file mode 100644
index 0000000000..793a1ed3cc
--- /dev/null
+++ b/js/src/jsapi-tests/testIsInsideNursery.cpp
@@ -0,0 +1,58 @@
+/* -*- 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/. */
+
+#include "jsapi-tests/tests.h"
+
+#include "vm/JSContext-inl.h"
+
+BEGIN_TEST(testIsInsideNursery) {
+  /* Non-GC things are never inside the nursery. */
+  CHECK(!cx->nursery().isInside(cx));
+  CHECK(!cx->nursery().isInside((void*)nullptr));
+
+  // Skip test if some part of the nursery is disabled (via env var, for
+  // example.)
+  if (!cx->zone()->allocNurseryObjects() ||
+      !cx->zone()->allocNurseryStrings()) {
+    return true;
+  }
+
+  JS_GC(cx);
+
+  JS::Rooted<JSObject*> object(cx, JS_NewPlainObject(cx));
+  const char oolstr[] =
+      "my hands are floppy dark red pieces of liver, large "
+      "enough to exceed the space of an inline string";
+  JS::Rooted<JSString*> string(cx, JS_NewStringCopyZ(cx, oolstr));
+
+  /* Objects are initially allocated in the nursery. */
+  CHECK(js::gc::IsInsideNursery(object));
+  /* As are strings. */
+  CHECK(js::gc::IsInsideNursery(string));
+  /* And their contents. */
+  {
+    JS::AutoCheckCannotGC nogc;
+    const JS::Latin1Char* strdata =
+        string->asLinear().nonInlineLatin1Chars(nogc);
+    CHECK(cx->nursery().isInside(strdata));
+  }
+
+  JS_GC(cx);
+
+  /* And are tenured if still live after a GC. */
+  CHECK(!js::gc::IsInsideNursery(object));
+  CHECK(!js::gc::IsInsideNursery(string));
+  {
+    JS::AutoCheckCannotGC nogc;
+    const JS::Latin1Char* strdata =
+        string->asLinear().nonInlineLatin1Chars(nogc);
+    CHECK(!cx->nursery().isInside(strdata));
+  }
+
+  return true;
+}
+END_TEST(testIsInsideNursery)