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/* -*- 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 builtin_WeakMapObject_inl_h
#define builtin_WeakMapObject_inl_h
#include "builtin/WeakMapObject.h"
#include "js/friend/ErrorMessages.h" // js::GetErrorMessage, JSMSG_*
#include "js/Wrapper.h"
#include "gc/WeakMap-inl.h"
#include "vm/JSObject-inl.h"
namespace js {
static bool TryPreserveReflector(JSContext* cx, HandleObject obj) {
if (!MaybePreserveDOMWrapper(cx, obj)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
JSMSG_BAD_WEAKMAP_KEY);
return false;
}
return true;
}
static MOZ_ALWAYS_INLINE bool WeakCollectionPutEntryInternal(
JSContext* cx, Handle<WeakCollectionObject*> obj, HandleObject key,
HandleValue value) {
ObjectValueWeakMap* map = obj->getMap();
if (!map) {
auto newMap = cx->make_unique<ObjectValueWeakMap>(cx, obj.get());
if (!newMap) {
return false;
}
map = newMap.release();
InitReservedSlot(obj, WeakCollectionObject::DataSlot, map,
MemoryUse::WeakMapObject);
}
// Preserve wrapped native keys to prevent wrapper optimization.
if (!TryPreserveReflector(cx, key)) {
return false;
}
RootedObject delegate(cx, UncheckedUnwrapWithoutExpose(key));
if (delegate && !TryPreserveReflector(cx, delegate)) {
return false;
}
MOZ_ASSERT(key->compartment() == obj->compartment());
MOZ_ASSERT_IF(value.isObject(),
value.toObject().compartment() == obj->compartment());
if (!map->put(key, value)) {
JS_ReportOutOfMemory(cx);
return false;
}
return true;
}
} // namespace js
#endif /* builtin_WeakMapObject_inl_h */
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