vladislavbelov
ffc4a56b9f
Fixes #6846 Differential Revision: https://code.wildfiregames.com/D5185 This was SVN commit r27965.
106 lines
2.8 KiB
C++
106 lines
2.8 KiB
C++
/* Copyright (C) 2021 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "ScriptExceptions.h"
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#include "ps/CLogger.h"
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#include "ps/CStr.h"
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#include "scriptinterface/FunctionWrapper.h"
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#include "scriptinterface/ScriptRequest.h"
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bool ScriptException::IsPending(const ScriptRequest& rq)
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{
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return JS_IsExceptionPending(rq.cx);
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}
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bool ScriptException::CatchPending(const ScriptRequest& rq)
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{
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if (!JS_IsExceptionPending(rq.cx))
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return false;
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JS::RootedValue excn(rq.cx);
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ENSURE(JS_GetPendingException(rq.cx, &excn));
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JS_ClearPendingException(rq.cx);
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if (excn.isUndefined())
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{
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LOGERROR("JavaScript error: (undefined)");
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return true;
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}
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// As of SM45/52, there is no way to recover a stack in case the thrown thing is not an Error object.
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if (!excn.isObject())
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{
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CStr error;
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Script::FromJSVal(rq, excn, error);
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LOGERROR("JavaScript error: %s", error);
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return true;
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}
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JS::RootedObject excnObj(rq.cx, &excn.toObject());
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JSErrorReport* report = JS_ErrorFromException(rq.cx, excnObj);
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if (!report)
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{
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CStr error;
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Script::FromJSVal(rq, excn, error);
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LOGERROR("JavaScript error: %s", error);
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return true;
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}
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std::stringstream msg;
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msg << "JavaScript error: ";
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if (report->filename)
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{
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msg << report->filename;
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msg << " line " << report->lineno << "\n";
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}
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msg << report->message().c_str();
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JS::RootedObject stackObj(rq.cx, ExceptionStackOrNull(excnObj));
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JS::RootedValue stackVal(rq.cx, JS::ObjectOrNullValue(stackObj));
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if (!stackVal.isNull())
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{
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std::string stackText;
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ScriptFunction::Call(rq, stackVal, "toString", stackText);
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std::istringstream stream(stackText);
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for (std::string line; std::getline(stream, line);)
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msg << "\n " << line;
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}
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LOGERROR("%s", msg.str().c_str());
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return true;
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}
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void ScriptException::Raise(const ScriptRequest& rq, const char* format, ...)
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{
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va_list ap;
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va_start(ap, format);
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// SM is single-threaded, so a static thread_local buffer needs no locking.
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thread_local static char buffer[256];
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vsprintf_s(buffer, ARRAY_SIZE(buffer), format, ap);
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va_end(ap);
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// Rather annoyingly, there are no va_list versions of this function, hence the preformatting above.
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JS_ReportErrorUTF8(rq.cx, "%s", buffer);
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}
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