LiteLoaderBDS-1.16.40/Tools/ScriptX/backend/JavaScriptCore/JscException.cc
2023-03-03 10:18:21 -08:00

103 lines
3.1 KiB
C++

/*
* Tencent is pleased to support the open source community by making ScriptX available.
* Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
*
* 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 "../../src/Exception.h"
#include "../../src/Native.hpp"
#include "../../src/Scope.h"
#include "../../src/Utils.h"
#include "JscEngine.h"
#include "JscHelper.h"
#include "JscReference.hpp"
namespace script {
void jsc_backend::ExceptionFields::fillMessage() const {
if (!hasMessage_) {
hasMessage_ = true;
try {
auto exp = exception_.get().asObject();
message_ = exp.get("message").asString().toString();
} catch (Exception&) {
message_ = "[another exception in message()]";
}
}
}
Exception::Exception(std::string message) : std::exception(), exception_() {
exception_.message_ = std::move(message);
exception_.hasMessage_ = true;
}
Exception::Exception(const script::Local<script::String>& message)
: std::exception(), exception_() {
JSValueRef jscException = nullptr;
auto context = jsc_backend::currentEngineContextChecked();
auto msg = jsc_backend::JscEngine::toJsc(context, message);
exception_.exception_ = jsc_backend::JscEngine::make<Local<Object>>(
JSObjectMakeError(context, 1, &msg, &jscException));
jsc_backend::JscEngine::checkException(jscException);
}
Exception::Exception(const script::Local<script::Value>& exception)
: std::exception(), exception_({}) {
exception_.exception_ = exception;
}
Local<Value> Exception::exception() const {
if (exception_.exception_.isEmpty()) {
JSValueRef jscException = nullptr;
auto context = jsc_backend::currentEngineContextChecked();
auto msg = String::newString(exception_.message_);
auto msgRef = jsc_backend::JscEngine::toJsc(context, msg);
exception_.exception_ = jsc_backend::JscEngine::make<Local<Object>>(
JSObjectMakeError(context, 1, &msgRef, &jscException));
jsc_backend::JscEngine::checkException(jscException);
}
return exception_.exception_.getValue();
}
std::string Exception::message() const noexcept {
exception_.fillMessage();
return exception_.message_;
}
std::string Exception::stacktrace() const noexcept {
try {
return exception().asObject().get("stack").asString().toString();
} catch (Exception&) {
return "[failed to obtain stacktrace]";
}
}
const char* Exception::what() const noexcept {
exception_.fillMessage();
return exception_.message_.c_str();
}
namespace jsc_backend {
void JscEngine::checkException(JSValueRef exception) {
if (exception) {
throw Exception(Local<Value>(exception));
}
}
} // namespace jsc_backend
} // namespace script