94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) Meta Platforms, Inc. and affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <react/bridging/Base.h>
|
|
|
|
namespace facebook::react::bridging {
|
|
|
|
template <
|
|
typename JSReturnT,
|
|
typename ClassT,
|
|
typename ReturnT,
|
|
typename... ArgsT,
|
|
typename... JSArgsT>
|
|
JSReturnT callFromJs(
|
|
jsi::Runtime& rt,
|
|
ReturnT (ClassT::*method)(jsi::Runtime&, ArgsT...),
|
|
const std::shared_ptr<CallInvoker>& jsInvoker,
|
|
ClassT* instance,
|
|
JSArgsT&&... args) {
|
|
static_assert(
|
|
sizeof...(ArgsT) == sizeof...(JSArgsT), "Incorrect arguments length");
|
|
static_assert(
|
|
(supportsFromJs<ArgsT, JSArgsT> && ...), "Incompatible arguments");
|
|
|
|
if constexpr (std::is_void_v<JSReturnT>) {
|
|
(instance->*method)(
|
|
rt, fromJs<ArgsT>(rt, std::forward<JSArgsT>(args), jsInvoker)...);
|
|
|
|
} else if constexpr (std::is_void_v<ReturnT>) {
|
|
static_assert(
|
|
std::is_same_v<JSReturnT, jsi::Value>,
|
|
"Void functions may only return undefined");
|
|
|
|
(instance->*method)(
|
|
rt, fromJs<ArgsT>(rt, std::forward<JSArgsT>(args), jsInvoker)...);
|
|
return jsi::Value();
|
|
|
|
} else if constexpr (
|
|
is_jsi_v<JSReturnT> || supportsToJs<ReturnT, JSReturnT>) {
|
|
static_assert(supportsToJs<ReturnT, JSReturnT>, "Incompatible return type");
|
|
|
|
return toJs(
|
|
rt,
|
|
(instance->*method)(
|
|
rt, fromJs<ArgsT>(rt, std::forward<JSArgsT>(args), jsInvoker)...),
|
|
jsInvoker);
|
|
} else if constexpr (is_optional_jsi_v<JSReturnT>) {
|
|
static_assert(
|
|
is_optional_v<ReturnT>
|
|
? supportsToJs<
|
|
typename ReturnT::value_type,
|
|
typename JSReturnT::value_type>
|
|
: supportsToJs<ReturnT, typename JSReturnT::value_type>,
|
|
"Incompatible return type");
|
|
|
|
auto result = toJs(
|
|
rt,
|
|
(instance->*method)(
|
|
rt, fromJs<ArgsT>(rt, std::forward<JSArgsT>(args), jsInvoker)...),
|
|
jsInvoker);
|
|
|
|
if constexpr (std::is_same_v<decltype(result), jsi::Value>) {
|
|
if (result.isNull() || result.isUndefined()) {
|
|
return std::nullopt;
|
|
}
|
|
}
|
|
|
|
return convert(rt, std::move(result));
|
|
} else {
|
|
static_assert(
|
|
std::is_convertible_v<ReturnT, JSReturnT>, "Incompatible return type");
|
|
return (instance->*method)(
|
|
rt, fromJs<ArgsT>(rt, std::forward<JSArgsT>(args), jsInvoker)...);
|
|
}
|
|
}
|
|
|
|
template <typename ReturnT, typename... ArgsT>
|
|
constexpr size_t getParameterCount(ReturnT (*)(ArgsT...)) {
|
|
return sizeof...(ArgsT);
|
|
}
|
|
|
|
template <typename Class, typename ReturnT, typename... ArgsT>
|
|
constexpr size_t getParameterCount(ReturnT (Class::*)(ArgsT...)) {
|
|
return sizeof...(ArgsT);
|
|
}
|
|
|
|
} // namespace facebook::react::bridging
|