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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/. */
#include "gtest/gtest.h"
#include "js/TypeDecls.h"
#include "js/Value.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/Promise-inl.h"
#include "xpcpublic.h"
using namespace mozilla;
using namespace mozilla::dom;
struct TraceCounts {
int32_t mValue = 0;
int32_t mId = 0;
int32_t mObject = 0;
int32_t mWrapperCache = 0;
int32_t mTenuredHeapObject = 0;
int32_t mString = 0;
int32_t mScript = 0;
int32_t mFunction = 0;
};
struct DummyCallbacks final : public TraceCallbacks {
void Trace(JS::Heap<JS::Value>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mValue++;
}
void Trace(JS::Heap<jsid>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mId++;
}
void Trace(JS::Heap<JSObject*>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mObject++;
}
void Trace(nsWrapperCache*, const char* aName,
void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mWrapperCache++;
}
void Trace(JS::TenuredHeap<JSObject*>*, const char*,
void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mTenuredHeapObject++;
}
void Trace(JS::Heap<JSString*>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mString++;
}
void Trace(JS::Heap<JSScript*>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mScript++;
}
void Trace(JS::Heap<JSFunction*>*, const char*,
void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mFunction++;
}
};
TEST(NativeThenHandler, TraceValue)
{
auto onResolve = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
JS::Handle<JS::Value>) -> already_AddRefed<Promise> {
return nullptr;
};
auto onReject = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
JS::Handle<JS::Value>) -> already_AddRefed<Promise> {
return nullptr;
};
// Explicit type for backward compatibility with clang<7 / gcc<8
using HandlerType =
NativeThenHandler<decltype(onResolve), decltype(onReject), std::tuple<>,
std::tuple<JS::HandleValue>>;
RefPtr<HandlerType> handler = new HandlerType(
nullptr, Some(onResolve), Some(onReject), std::make_tuple(),
std::make_tuple(JS::UndefinedHandleValue));
TraceCounts counts;
NS_CYCLE_COLLECTION_PARTICIPANT(HandlerType)
->Trace(handler.get(), DummyCallbacks(), &counts);
EXPECT_EQ(counts.mValue, 1);
}
TEST(NativeThenHandler, TraceObject)
{
auto onResolve = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
JS::Handle<JSObject*>) -> already_AddRefed<Promise> {
return nullptr;
};
auto onReject = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
JS::Handle<JSObject*>) -> already_AddRefed<Promise> {
return nullptr;
};
AutoJSAPI jsapi;
MOZ_ALWAYS_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()));
JSContext* cx = jsapi.cx();
JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
// Explicit type for backward compatibility with clang<7 / gcc<8
using HandlerType =
NativeThenHandler<decltype(onResolve), decltype(onReject), std::tuple<>,
std::tuple<JS::HandleObject>>;
RefPtr<HandlerType> handler = new HandlerType(
nullptr, Some(onResolve), Some(onReject), std::make_tuple(),
std::make_tuple(JS::HandleObject(obj)));
TraceCounts counts;
NS_CYCLE_COLLECTION_PARTICIPANT(HandlerType)
->Trace(handler.get(), DummyCallbacks(), &counts);
EXPECT_EQ(counts.mObject, 1);
}
TEST(NativeThenHandler, TraceMixed)
{
auto onResolve = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
nsIGlobalObject*, Promise*, JS::Handle<JS::Value>,
JS::Handle<JSObject*>) -> already_AddRefed<Promise> {
return nullptr;
};
auto onReject = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
nsIGlobalObject*, Promise*, JS::Handle<JS::Value>,
JS::Handle<JSObject*>) -> already_AddRefed<Promise> {
return nullptr;
};
AutoJSAPI jsapi;
MOZ_ALWAYS_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()));
JSContext* cx = jsapi.cx();
nsCOMPtr<nsIGlobalObject> global = xpc::CurrentNativeGlobal(cx);
JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
RefPtr<Promise> promise = Promise::Create(global, IgnoreErrors());
// Explicit type for backward compatibility with clang<7 / gcc<8
using HandlerType =
NativeThenHandler<decltype(onResolve), decltype(onReject),
std::tuple<nsCOMPtr<nsIGlobalObject>, RefPtr<Promise>>,
std::tuple<JS::HandleValue, JS::HandleObject>>;
RefPtr<HandlerType> handler = new HandlerType(
nullptr, Some(onResolve), Some(onReject),
std::make_tuple(global, promise),
std::make_tuple(JS::UndefinedHandleValue, JS::HandleObject(obj)));
TraceCounts counts;
NS_CYCLE_COLLECTION_PARTICIPANT(HandlerType)
->Trace(handler.get(), DummyCallbacks(), &counts);
EXPECT_EQ(counts.mValue, 1);
EXPECT_EQ(counts.mObject, 1);
}
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