Files
arkXtest/uitest/napi/uitest_napi.cpp
T
2022-09-22 12:02:39 +08:00

529 lines
24 KiB
C++

/*
* Copyright (c) 2021-2022 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <future>
#include <napi/native_api.h>
#include <napi/native_node_api.h>
#include <queue>
#include <set>
#include <string>
#include <unistd.h>
#include "json.hpp"
#include "common_utilities_hpp.h"
#include "frontend_api_defines.h"
namespace OHOS::uitest {
using namespace nlohmann;
using namespace std;
static constexpr size_t NAPI_MAX_BUF_LEN = 1024;
static constexpr size_t NAPI_MAX_ARG_COUNT = 8;
static constexpr size_t BACKEND_OBJ_GC_BATCH = 100;
// type of unexpected or napi-internal error
static constexpr napi_status NAPI_ERR = napi_status::napi_generic_failure;
// the name of property that represents the objectRef of the backend object
static constexpr char PROP_BACKEND_OBJ_REF[] = "backendObjRef";
/**For dfx usage, records the uncalled js apis. */
static set<string> g_unCalledJsFuncNames;
/**For gc usage, records the backend objRefs about to delete. */
static queue<string> g_backendObjsAboutToDelete;
static mutex g_gcQueueMutex;
// use external setup/transact/disposal callback functions
extern bool SetupTransactionEnv(string_view token);
extern void TransactionClientFunc(const ApiCallInfo &, ApiReplyInfo &);
extern void DisposeTransactionEnv();
static function<void(const ApiCallInfo &, ApiReplyInfo &)> transactFunc = TransactionClientFunc;
/** Convert js string to cpp string.*/
static string JsStrToCppStr(napi_env env, napi_value jsStr)
{
if (jsStr == nullptr) {
return "";
}
napi_valuetype type;
NAPI_CALL_BASE(env, napi_typeof(env, jsStr, &type), "");
if (type == napi_undefined || type == napi_null) {
return "";
}
size_t bufSize = 0;
char buf[NAPI_MAX_BUF_LEN] = {0};
NAPI_CALL_BASE(env, napi_get_value_string_utf8(env, jsStr, buf, NAPI_MAX_BUF_LEN, &bufSize), "");
return string(buf, bufSize);
}
/**Lifecycle callback, setup transaction environment, called externally.*/
static napi_value EnvironmentSetup(napi_env env, napi_callback_info info)
{
static auto setUpDone = false;
if (setUpDone) {
return nullptr;
}
LOG_I("Begin setup transaction environment");
size_t argc = 1;
napi_value value = nullptr;
napi_value argv[1] = {0};
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, argv, &value, nullptr));
NAPI_ASSERT(env, argc > 0, "Need session token argument!");
setUpDone = SetupTransactionEnv(JsStrToCppStr(env, argv[0]));
LOG_I("End setup transaction environment, result=%{public}d", setUpDone);
NAPI_ASSERT(env, setUpDone, "SetupTransactionEnv failed");
return nullptr;
}
/**Lifecycle callback, teardown transaction environment, called externally.*/
static napi_value EnvironmentTeardown(napi_env env, napi_callback_info info)
{
LOG_I("Begin teardown transaction environment");
DisposeTransactionEnv();
LOG_I("End teardown transaction environment");
return nullptr;
}
/**Encapsulates the data objects needed in once api transaction.*/
struct TransactionContext {
napi_value jsThis_ = nullptr;
ApiCallInfo callInfo_;
};
static napi_value CreateJsException(napi_env env, string_view code, string_view msg)
{
napi_value codeValue, msgValue, errorValue;
napi_create_string_utf8(env, code.data(), NAPI_AUTO_LENGTH, &codeValue);
napi_create_string_utf8(env, msg.data(), NAPI_AUTO_LENGTH, &msgValue);
napi_create_error(env, codeValue, msgValue, &errorValue);
return errorValue;
}
/**Set object constructor function to global as attribute.*/
static napi_status MountJsConstructorToGlobal(napi_env env, string_view typeName, napi_value function)
{
NAPI_ASSERT_BASE(env, function != nullptr, "Null constructor function", napi_invalid_arg);
const string name = "constructor_" + string(typeName);
napi_value global = nullptr;
NAPI_CALL_BASE(env, napi_get_global(env, &global), NAPI_ERR);
NAPI_CALL_BASE(env, napi_set_named_property(env, global, name.c_str(), function), NAPI_ERR);
return napi_ok;
}
/**Get object constructor function from global as attribute.*/
static napi_status GetJsConstructorFromGlobal(napi_env env, string_view typeName, napi_value *pFunction)
{
NAPI_ASSERT_BASE(env, pFunction != nullptr, "Null constructor receiver", napi_invalid_arg);
const string name = "constructor_" + string(typeName);
napi_value global = nullptr;
NAPI_CALL_BASE(env, napi_get_global(env, &global), NAPI_ERR);
NAPI_CALL_BASE(env, napi_get_named_property(env, global, name.c_str(), pFunction), NAPI_ERR);
return napi_ok;
}
/**Conversion between value and string, using the builtin JSON methods.*/
static napi_status ValueStringConvert(napi_env env, napi_value in, napi_value *out, bool stringify)
{
if (in == nullptr || out == nullptr) {
return napi_invalid_arg;
}
napi_value global = nullptr;
napi_value jsonProp = nullptr;
napi_value jsonFunc = nullptr;
NAPI_CALL_BASE(env, napi_get_global(env, &global), NAPI_ERR);
NAPI_CALL_BASE(env, napi_get_named_property(env, global, "JSON", &jsonProp), NAPI_ERR);
if (stringify) {
NAPI_CALL_BASE(env, napi_get_named_property(env, jsonProp, "stringify", &jsonFunc), NAPI_ERR);
} else {
NAPI_CALL_BASE(env, napi_get_named_property(env, jsonProp, "parse", &jsonFunc), NAPI_ERR);
}
napi_value argv[1] = {in};
NAPI_CALL_BASE(env, napi_call_function(env, jsonProp, jsonFunc, 1, argv, out), NAPI_ERR);
return napi_ok;
}
/**Get the readable name of the error enum value.*/
static string GetErrorName(ErrCode code)
{
static const std::map<ErrCode, std::string> names = {
{NO_ERROR, "NO_ERROR"}, {INTERNAL_ERROR, "INTERNAL_ERROR"},
{WIDGET_LOST, "WIDGET_LOST"}, {ASSERTION_FAILURE, "ASSERTION_FAILURE"},
{USAGE_ERROR, "USAGE_ERROR"},
};
const auto find = names.find(code);
return (find == names.end()) ? "UNKNOWN" : find->second;
}
/**Unmarshal object from json, throw error and return false if the object cannot be deserialized.*/
static napi_status UnmarshalObject(napi_env env, const json &in, napi_value *pOut, napi_value jsThis)
{
NAPI_ASSERT_BASE(env, pOut != nullptr, "Illegal arguments", napi_invalid_arg);
const auto type = in.type();
if (type == nlohmann::detail::value_t::null) { // return null
NAPI_CALL_BASE(env, napi_get_null(env, pOut), NAPI_ERR);
return napi_ok;
}
if (type != nlohmann::detail::value_t::string) { // non-string value, convert and return object
NAPI_CALL_BASE(env, napi_create_string_utf8(env, in.dump().c_str(), NAPI_AUTO_LENGTH, pOut), NAPI_ERR);
NAPI_CALL_BASE(env, ValueStringConvert(env, *pOut, pOut, false), NAPI_ERR);
return napi_ok;
}
const auto cppString = in.get<string>();
string frontendTypeName;
bool bindJsThis = false;
for (const auto &classDef : FRONTEND_CLASS_DEFS) {
const auto objRefFormat = string(classDef->name_) + "#";
if (cppString.find(objRefFormat) == 0) {
frontendTypeName = string(classDef->name_);
bindJsThis = classDef->bindUiDriver_;
break;
}
}
NAPI_CALL_BASE(env, napi_create_string_utf8(env, cppString.c_str(), NAPI_AUTO_LENGTH, pOut), NAPI_ERR);
if (frontendTypeName.empty()) { // plain string, return it
return napi_ok;
}
LOG_D("Convert to frondend object: '%{public}s'", frontendTypeName.c_str());
// covert to wrapper object and bind the backend objectRef
napi_value refValue = *pOut;
napi_value constructor = nullptr;
NAPI_CALL_BASE(env, GetJsConstructorFromGlobal(env, frontendTypeName, &constructor), NAPI_ERR);
NAPI_CALL_BASE(env, napi_new_instance(env, constructor, 1, &refValue, pOut), NAPI_ERR);
NAPI_CALL_BASE(env, napi_set_named_property(env, *pOut, PROP_BACKEND_OBJ_REF, refValue), NAPI_ERR);
if (bindJsThis) { // bind the jsThis object
LOG_D("Bind jsThis");
NAPI_ASSERT_BASE(env, jsThis != nullptr, "null jsThis", NAPI_ERR);
NAPI_CALL_BASE(env, napi_set_named_property(env, *pOut, "boundObject", jsThis), NAPI_ERR);
}
return napi_ok;
}
/**Evaluate and convert transaction reply to object. Return the exception raised during the
* transaction if any, else return the result object. */
static napi_value UnmarshalReply(napi_env env, const TransactionContext &ctx, const ApiReplyInfo &reply)
{
LOG_D("Start to Unmarshal transaction result");
if (reply.exception_.code_ != ErrCode::NO_ERROR) { // raise error
const auto code = GetErrorName(reply.exception_.code_);
const auto &message = reply.exception_.message_;
LOG_I("ErrorInfo: code='%{public}s', message='%{public}s'", code.c_str(), message.c_str());
return CreateJsException(env, code, message);
}
LOG_D("Start to Unmarshal resutrn value: %{public}s", reply.resultValue_.dump().c_str());
const auto resultType = reply.resultValue_.type();
napi_value result = nullptr;
if (resultType == nlohmann::detail::value_t::null) { // return null
NAPI_CALL(env, napi_get_null(env, &result));
} else if (resultType == nlohmann::detail::value_t::array) { // return array
NAPI_CALL(env, napi_create_array_with_length(env, reply.resultValue_.size(), &result));
for (size_t idx = 0; idx < reply.resultValue_.size(); idx++) {
napi_value item = nullptr;
NAPI_CALL(env, UnmarshalObject(env, reply.resultValue_.at(idx), &item, ctx.jsThis_));
NAPI_CALL(env, napi_set_element(env, result, idx, item));
}
} else { // return single value
NAPI_CALL(env, UnmarshalObject(env, reply.resultValue_, &result, ctx.jsThis_));
}
return result;
}
/**Call api with parameters out, wait for and return result value or throw raised exception.*/
napi_value TransactSync(napi_env env, TransactionContext &ctx)
{
LOG_D("TargetApi=%{public}s", ctx.callInfo_.apiId_.data());
auto reply = ApiReplyInfo();
transactFunc(ctx.callInfo_, reply);
auto resultValue = UnmarshalReply(env, ctx, reply);
auto isError = false;
NAPI_CALL(env, napi_is_error(env, resultValue, &isError));
if (isError) {
NAPI_CALL(env, napi_throw(env, resultValue));
NAPI_CALL(env, napi_get_undefined(env, &resultValue)); // return undefined it's error
}
// notify backend objects deleting
if (g_backendObjsAboutToDelete.size() >= BACKEND_OBJ_GC_BATCH) {
auto gcCall = ApiCallInfo {.apiId_ = "BackendObjectsCleaner"};
unique_lock<mutex> lock(g_gcQueueMutex);
for (size_t count = 0; count < BACKEND_OBJ_GC_BATCH; count++) {
gcCall.paramList_.emplace_back(g_backendObjsAboutToDelete.front());
g_backendObjsAboutToDelete.pop();
}
lock.unlock();
auto gcReply = ApiReplyInfo();
transactFunc(gcCall, gcReply);
}
return resultValue;
}
/**Encapsulates the data objects needed for async transaction.*/
struct AsyncTransactionCtx {
TransactionContext ctx_;
ApiReplyInfo reply_;
napi_async_work asyncWork_ = nullptr;
napi_deferred deferred_ = nullptr;
napi_ref jsThisRef_ = nullptr;
};
/**Call api with parameters out, return a promise.*/
static napi_value TransactAsync(napi_env env, TransactionContext &ctx)
{
constexpr uint32_t refCount = 1;
LOG_D("TargetApi=%{public}s", ctx.callInfo_.apiId_.data());
napi_value resName;
NAPI_CALL(env, napi_create_string_latin1(env, __FUNCTION__, NAPI_AUTO_LENGTH, &resName));
auto aCtx = new AsyncTransactionCtx();
aCtx->ctx_ = ctx;
napi_value promise;
NAPI_CALL(env, napi_create_promise(env, &(aCtx->deferred_), &promise));
NAPI_CALL(env, napi_create_reference(env, ctx.jsThis_, refCount, &(aCtx->jsThisRef_)));
napi_create_async_work(
env, nullptr, resName,
[](napi_env env, void *data) {
auto aCtx = reinterpret_cast<AsyncTransactionCtx *>(data);
// NOT:: use 'auto&' rather than 'auto', or the result will be set to copy-constructed temp-object
auto &ctx = aCtx->ctx_;
transactFunc(ctx.callInfo_, aCtx->reply_);
},
[](napi_env env, napi_status status, void *data) {
auto aCtx = reinterpret_cast<AsyncTransactionCtx *>(data);
napi_get_reference_value(env, aCtx->jsThisRef_, &(aCtx->ctx_.jsThis_));
auto resultValue = UnmarshalReply(env, aCtx->ctx_, aCtx->reply_);
napi_delete_reference(env, aCtx->jsThisRef_);
auto isError = false;
napi_is_error(env, resultValue, &isError);
if (isError) {
napi_reject_deferred(env, aCtx->deferred_, resultValue);
} else {
napi_resolve_deferred(env, aCtx->deferred_, resultValue);
}
delete aCtx;
},
(void *)aCtx, &(aCtx->asyncWork_));
napi_queue_async_work(env, aCtx->asyncWork_);
return promise;
}
static napi_status GetBackendObjRefProp(napi_env env, napi_value value, napi_value* pOut)
{
napi_valuetype type = napi_undefined;
NAPI_CALL_BASE(env, napi_typeof(env, value, &type), NAPI_ERR);
if (type != napi_object) {
*pOut = nullptr;
return napi_ok;
}
bool hasRef = false;
NAPI_CALL_BASE(env, napi_has_named_property(env, value, PROP_BACKEND_OBJ_REF, &hasRef), NAPI_ERR);
if (!hasRef) {
*pOut = nullptr;
} else {
NAPI_CALL_BASE(env, napi_get_named_property(env, value, PROP_BACKEND_OBJ_REF, pOut), NAPI_ERR);
}
return napi_ok;
}
/**Generic js-api callback.*/
static napi_value GenericCallback(napi_env env, napi_callback_info info)
{
// extract callback data
TransactionContext ctx;
napi_value argv[NAPI_MAX_ARG_COUNT] = {nullptr};
auto count = NAPI_MAX_ARG_COUNT;
void *pData = nullptr;
NAPI_CALL(env, napi_get_cb_info(env, info, &count, argv, &(ctx.jsThis_), &pData));
NAPI_ASSERT(env, pData != nullptr, "Null methodDef");
auto methodDef = reinterpret_cast<const FrontendMethodDef *>(pData);
g_unCalledJsFuncNames.erase(string(methodDef->name_)); // api used
// 1. marshal parameters into json-array
napi_value paramArray = nullptr;
NAPI_CALL(env, napi_create_array_with_length(env, count, &paramArray));
if (count > NAPI_MAX_ARG_COUNT) {
count = NAPI_MAX_ARG_COUNT;
}
for (size_t idx = 0; idx < count; idx++) {
napi_value item = nullptr; // convert to backendObjRef if any
NAPI_CALL(env, GetBackendObjRefProp(env, argv[idx], &item));
if (item == nullptr) {
item = argv[idx];
}
NAPI_CALL(env, napi_set_element(env, paramArray, idx, item));
}
napi_value jsTempObj = nullptr;
NAPI_CALL(env, ValueStringConvert(env, paramArray, &jsTempObj, true));
ctx.callInfo_.paramList_ = nlohmann::json::parse(JsStrToCppStr(env, jsTempObj));
// 2. marshal jsThis into json (backendObjRef)
if (!methodDef->static_) {
NAPI_CALL(env, GetBackendObjRefProp(env, ctx.jsThis_, &jsTempObj));
ctx.callInfo_.callerObjRef_ = JsStrToCppStr(env, jsTempObj);
}
// 3. fill-in apiId
ctx.callInfo_.apiId_ = methodDef->name_;
// 4. call out, aync or async
if (methodDef->fast_) {
return TransactSync(env, ctx);
} else {
return TransactAsync(env, ctx);
}
}
/**Exports uitest js wrapper-classes and its global constructor.*/
static napi_status ExportClass(napi_env env, napi_value exports, const FrontEndClassDef &classDef)
{
NAPI_ASSERT_BASE(env, exports != nullptr, "Illegal export params", NAPI_ERR);
const auto name = classDef.name_.data();
const auto methodNeatNameOffset = classDef.name_.length() + 1;
auto descs = make_unique<napi_property_descriptor[]>(classDef.methodCount_);
for (size_t idx = 0; idx < classDef.methodCount_; idx++) {
const auto &methodDef = classDef.methods_[idx];
g_unCalledJsFuncNames.insert(string(methodDef.name_));
const auto neatName = methodDef.name_.substr(methodNeatNameOffset);
napi_property_descriptor desc = DECLARE_NAPI_FUNCTION(neatName.data(), GenericCallback);
if (methodDef.static_) {
desc.attributes = napi_static;
}
desc.data = (void *)(&methodDef);
descs[idx] = desc;
}
constexpr auto initializer = [](napi_env env, napi_callback_info info) {
auto argc = NAPI_MAX_ARG_COUNT;
napi_value argv[NAPI_MAX_ARG_COUNT] = { nullptr };
napi_value jsThis = nullptr;
NAPI_CALL_BASE(env, napi_get_cb_info(env, info, &argc, argv, &jsThis, nullptr), jsThis);
auto ref = make_unique<string>(argc <= 0 ? "" : JsStrToCppStr(env, argv[0]));
auto finalizer = [](napi_env env, void *data, void *hint) {
auto ref = reinterpret_cast<string *>(data);
if (ref->length() > 0) {
LOG_D("Finalizing object: %{public}s", ref->c_str());
unique_lock<mutex> lock(g_gcQueueMutex);
g_backendObjsAboutToDelete.push(*ref);
}
delete ref;
};
NAPI_CALL_BASE(env, napi_wrap(env, jsThis, ref.release(), finalizer, nullptr, nullptr), jsThis);
return jsThis;
};
// define class, provide the js-class members(property) and initializer.
napi_value ctor = nullptr;
NAPI_CALL_BASE(env, napi_define_class(env, name, NAPI_AUTO_LENGTH, initializer, nullptr,
classDef.methodCount_, descs.get(), &ctor), NAPI_ERR);
NAPI_CALL_BASE(env, napi_set_named_property(env, exports, name, ctor), NAPI_ERR);
NAPI_CALL_BASE(env, MountJsConstructorToGlobal(env, name, ctor), NAPI_ERR);
if (string_view(name) == "By") {
// create seed-by with special objectRef and mount to exporter
napi_value bySeed = nullptr;
NAPI_CALL_BASE(env, napi_new_instance(env, ctor, 0, nullptr, &bySeed), NAPI_ERR);
napi_value prop = nullptr;
NAPI_CALL_BASE(env, napi_create_string_utf8(env, REF_SEED_BY.data(), NAPI_AUTO_LENGTH, &prop), NAPI_ERR);
NAPI_CALL_BASE(env, napi_set_named_property(env, bySeed, PROP_BACKEND_OBJ_REF, prop), NAPI_ERR);
NAPI_CALL_BASE(env, napi_set_named_property(env, exports, "BY", bySeed), NAPI_ERR);
}
return napi_ok;
}
/**Exports enumrator class.*/
static napi_status ExportEnumrator(napi_env env, napi_value exports, const FrontendEnumratorDef &enumDef)
{
NAPI_ASSERT_BASE(env, exports != nullptr, "Illegal export params", NAPI_ERR);
napi_value enumrator;
NAPI_CALL_BASE(env, napi_create_object(env, &enumrator), NAPI_ERR);
for (size_t idx = 0; idx < enumDef.valueCount_; idx++) {
const auto &def = enumDef.values_[idx];
napi_value prop = nullptr;
NAPI_CALL_BASE(env, napi_create_string_utf8(env, def.valueJson_.data(), NAPI_AUTO_LENGTH, &prop), NAPI_ERR);
NAPI_CALL_BASE(env, ValueStringConvert(env, prop, &prop, false), NAPI_ERR);
NAPI_CALL_BASE(env, napi_set_named_property(env, enumrator, def.name_.data(), prop), NAPI_ERR);
}
NAPI_CALL_BASE(env, napi_set_named_property(env, exports, enumDef.name_.data(), enumrator), NAPI_ERR);
return napi_ok;
}
/**Function used for statistics, return an array of uncalled js-api names.*/
static napi_value GetUnCalledJsApis(napi_env env, napi_callback_info info)
{
napi_value nameArray;
NAPI_CALL(env, napi_create_array_with_length(env, g_unCalledJsFuncNames.size(), &nameArray));
size_t idx = 0;
for (auto &name : g_unCalledJsFuncNames) {
napi_value nameItem = nullptr;
NAPI_CALL(env, napi_create_string_utf8(env, name.c_str(), NAPI_AUTO_LENGTH, &nameItem));
NAPI_CALL(env, napi_set_element(env, nameArray, idx, nameItem));
idx++;
}
return nameArray;
}
napi_value Export(napi_env env, napi_value exports)
{
LOG_I("Begin export uitest apis");
// export transaction-environment-lifecycle callbacks and dfx functions
napi_property_descriptor props[] = {
DECLARE_NAPI_STATIC_FUNCTION("setup", EnvironmentSetup),
DECLARE_NAPI_STATIC_FUNCTION("teardown", EnvironmentTeardown),
DECLARE_NAPI_STATIC_FUNCTION("getUnCalledJsApis", GetUnCalledJsApis),
};
NAPI_CALL(env, napi_define_properties(env, exports, sizeof(props) / sizeof(props[0]), props));
NAPI_CALL(env, ExportClass(env, exports, BY_DEF));
NAPI_CALL(env, ExportClass(env, exports, UI_DRIVER_DEF));
NAPI_CALL(env, ExportClass(env, exports, UI_COMPONENT_DEF));
NAPI_CALL(env, ExportClass(env, exports, UI_WINDOW_DEF));
NAPI_CALL(env, ExportClass(env, exports, POINTER_MATRIX_DEF));
NAPI_CALL(env, ExportEnumrator(env, exports, MATCH_PATTERN_DEF));
NAPI_CALL(env, ExportEnumrator(env, exports, RESIZE_DIRECTION_DEF));
NAPI_CALL(env, ExportEnumrator(env, exports, WINDOW_MODE_DEF));
NAPI_CALL(env, ExportEnumrator(env, exports, DISPLAY_ROTATION_DEF));
LOG_I("End export uitest apis");
return exports;
}
static napi_module module = {
.nm_version = 1,
.nm_flags = 0,
.nm_filename = nullptr,
.nm_register_func = Export,
.nm_modname = "uitest",
.nm_priv = ((void *)0),
.reserved = {0},
};
extern "C" __attribute__((constructor)) void RegisterModule(void)
{
napi_module_register(&module);
}
} // namespace OHOS::uitest
// put register functions out of namespace to ensure C-linkage
extern const char _binary_uitest_exporter_js_start[];
extern const char _binary_uitest_exporter_js_end[];
extern const char _binary_uitest_exporter_abc_start[];
extern const char _binary_uitest_exporter_abc_end[];
extern "C" __attribute__((visibility("default"))) void NAPI_uitest_GetJSCode(const char **buf, int *bufLen)
{
if (buf != nullptr) {
*buf = _binary_uitest_exporter_js_start;
}
if (bufLen != nullptr) {
*bufLen = _binary_uitest_exporter_js_end - _binary_uitest_exporter_js_start;
}
}
extern "C" __attribute__((visibility("default"))) void NAPI_uitest_GetABCCode(const char **buf, int *bufLen)
{
if (buf != nullptr) {
*buf = _binary_uitest_exporter_abc_start;
}
if (bufLen != nullptr) {
*bufLen = _binary_uitest_exporter_abc_end - _binary_uitest_exporter_abc_start;
}
}