Add m-esr52 at 52.6.0

1 files changed, 52 insertions, 0 deletions

diff --git a/js/src/vm/Caches.cpp b/js/src/vm/Caches.cpp
new file mode 100644
index 000000000..667ea6ed3
--- /dev/null
+++ b/js/src/vm/Caches.cpp
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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 "vm/Caches-inl.h"
+
+#include "mozilla/PodOperations.h"
+
+using namespace js;
+
+using mozilla::PodZero;
+
+MathCache*
+ContextCaches::createMathCache(JSContext* cx)
+{
+    MOZ_ASSERT(!mathCache_);
+
+    UniquePtr<MathCache> newMathCache(js_new<MathCache>());
+    if (!newMathCache) {
+        ReportOutOfMemory(cx);
+        return nullptr;
+    }
+
+    mathCache_ = Move(newMathCache);
+    return mathCache_.get();
+}
+
+bool
+ContextCaches::init()
+{
+    if (!evalCache.init())
+        return false;
+
+    return true;
+}
+
+void
+NewObjectCache::clearNurseryObjects(JSRuntime* rt)
+{
+    for (unsigned i = 0; i < mozilla::ArrayLength(entries); ++i) {
+        Entry& e = entries[i];
+        NativeObject* obj = reinterpret_cast<NativeObject*>(&e.templateObject);
+        if (IsInsideNursery(e.key) ||
+            rt->gc.nursery.isInside(obj->slots_) ||
+            rt->gc.nursery.isInside(obj->elements_))
+        {
+            PodZero(&e);
+        }
+    }
+}