Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 86 insertions, 0 deletions

diff --git a/js/src/vm/Caches-inl.h b/js/src/vm/Caches-inl.h
new file mode 100644
index 0000000000..eb65085cd5
--- /dev/null
+++ b/js/src/vm/Caches-inl.h
@@ -0,0 +1,86 @@
+/* -*- 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 vm_Caches_inl_h
+#define vm_Caches_inl_h
+
+#include "vm/Caches.h"
+
+#include <iterator>
+
+#include "gc/Allocator.h"
+#include "gc/GCProbes.h"
+#include "vm/Probes.h"
+#include "vm/Realm.h"
+
+#include "vm/JSObject-inl.h"
+
+namespace js {
+
+inline bool NewObjectCache::lookupProto(const JSClass* clasp, JSObject* proto,
+                                        gc::AllocKind kind,
+                                        EntryIndex* pentry) {
+  MOZ_ASSERT(!proto->is<GlobalObject>());
+  return lookup(clasp, proto, kind, pentry);
+}
+
+inline bool NewObjectCache::lookupGlobal(const JSClass* clasp,
+                                         GlobalObject* global,
+                                         gc::AllocKind kind,
+                                         EntryIndex* pentry) {
+  return lookup(clasp, global, kind, pentry);
+}
+
+inline void NewObjectCache::fillGlobal(EntryIndex entry, const JSClass* clasp,
+                                       GlobalObject* global, gc::AllocKind kind,
+                                       NativeObject* obj) {
+  // MOZ_ASSERT(global == obj->getGlobal());
+  return fill(entry, clasp, global, kind, obj);
+}
+
+inline NativeObject* NewObjectCache::newObjectFromHit(JSContext* cx,
+                                                      EntryIndex entryIndex,
+                                                      gc::InitialHeap heap) {
+  MOZ_ASSERT(unsigned(entryIndex) < std::size(entries));
+  Entry* entry = &entries[entryIndex];
+
+  NativeObject* templateObj =
+      reinterpret_cast<NativeObject*>(&entry->templateObject);
+
+  ObjectGroup* group = templateObj->group();
+
+  // If we did the lookup based on the proto we might have a group/object from a
+  // different (same-compartment) realm, so we have to do a realm check.
+  if (group->realm() != cx->realm()) {
+    return nullptr;
+  }
+
+  if (cx->runtime()->gc.upcomingZealousGC()) {
+    return nullptr;
+  }
+
+  NativeObject* obj = static_cast<NativeObject*>(AllocateObject<NoGC>(
+      cx, entry->kind, /* nDynamicSlots = */ 0, heap, group->clasp()));
+  if (!obj) {
+    return nullptr;
+  }
+
+  copyCachedToObject(obj, templateObj, entry->kind);
+
+  if (group->clasp()->shouldDelayMetadataBuilder()) {
+    cx->realm()->setObjectPendingMetadata(cx, obj);
+  } else {
+    obj = static_cast<NativeObject*>(SetNewObjectMetadata(cx, obj));
+  }
+
+  probes::CreateObject(cx, obj);
+  gc::gcprobes::CreateObject(obj);
+  return obj;
+}
+
+} /* namespace js */
+
+#endif /* vm_Caches_inl_h */