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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 mozilla_dom_JSOracleChild
#define mozilla_dom_JSOracleChild
#include "mozilla/dom/PJSOracleChild.h"
#include "js/CharacterEncoding.h"
#include "js/HeapAPI.h"
#include "js/Initialization.h"
#include "jsapi.h"
#include "js/CompilationAndEvaluation.h"
#include "js/Context.h"
namespace mozilla::ipc {
class UtilityProcessParent;
}
namespace mozilla::dom {
struct JSContextHolder {
JSContextHolder() {
MOZ_RELEASE_ASSERT(JS_IsInitialized(),
"UtilityProcessChild::Init should have JS initialized");
mCx = JS_NewContext(JS::DefaultHeapMaxBytes);
if (!mCx) {
MOZ_CRASH("Failed to create JS Context");
return;
}
if (!JS::InitSelfHostedCode(mCx)) {
MOZ_CRASH("Failed to initialize the runtime's self-hosted code");
return;
}
static JSClass jsValidatorGlobalClass = {
"JSValidatorGlobal", JSCLASS_GLOBAL_FLAGS, &JS::DefaultGlobalClassOps};
JS::Rooted<JSObject*> global(
mCx, JS_NewGlobalObject(mCx, &jsValidatorGlobalClass, nullptr,
JS::FireOnNewGlobalHook, JS::RealmOptions()));
if (!global) {
MOZ_CRASH("Failed to create the global");
return;
}
mGlobal.init(mCx, global);
}
~JSContextHolder() {
if (mCx) {
JS_DestroyContext(mCx);
}
}
static void MaybeInit();
JSContext* mCx;
JS::PersistentRooted<JSObject*> mGlobal;
};
class PJSValidatorChild;
class JSOracleChild final : public PJSOracleChild {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(JSOracleChild, override);
already_AddRefed<PJSValidatorChild> AllocPJSValidatorChild();
void Start(Endpoint<PJSOracleChild>&& aEndpoint);
static struct JSContext* JSContext();
static class JSObject* JSObject();
private:
~JSOracleChild() = default;
static JSOracleChild* GetSingleton();
};
} // namespace mozilla::dom
#endif // defined(mozilla_dom_JSOracleChild)
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