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initial script error checking

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This commit is contained in:
howard-stearns 2017-01-25 14:56:06 -08:00
parent df91ef5f5f
commit 34e9c5debc
1 changed files with 44 additions and 6 deletions
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50
assignment-client/src/entities/EntityServer.cpp
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@ -318,20 +318,58 @@ void EntityServer::readAdditionalConfiguration(const QJsonObject& settingsSectio
}
}
// Copied from ScriptEngine.cpp. We should make this a class method for reuse.
// Note: I've deliberately stopped short of using ScriptEngine instead of QScriptEngine, as that is out of project scope at this point.
static bool hasCorrectSyntax(const QScriptProgram& program) {
const auto syntaxCheck = QScriptEngine::checkSyntax(program.sourceCode());
if (syntaxCheck.state() != QScriptSyntaxCheckResult::Valid) {
const auto error = syntaxCheck.errorMessage();
const auto line = QString::number(syntaxCheck.errorLineNumber());
const auto column = QString::number(syntaxCheck.errorColumnNumber());
const auto message = QString("[SyntaxError] %1 in %2:%3(%4)").arg(error, program.fileName(), line, column);
qCritical() << qPrintable(message);
return false;
}
return true;
}
static bool hadUncaughtExceptions(QScriptEngine& engine, const QString& fileName) {
if (engine.hasUncaughtException()) {
const auto backtrace = engine.uncaughtExceptionBacktrace();
const auto exception = engine.uncaughtException().toString();
const auto line = QString::number(engine.uncaughtExceptionLineNumber());
engine.clearExceptions();
static const QString SCRIPT_EXCEPTION_FORMAT = "[UncaughtException] %1 in %2:%3";
auto message = QString(SCRIPT_EXCEPTION_FORMAT).arg(exception, fileName, line);
if (!backtrace.empty()) {
static const auto lineSeparator = "\n ";
message += QString("\n[Backtrace]%1%2").arg(lineSeparator, backtrace.join(lineSeparator));
}
qCritical() << qPrintable(message);
return true;
}
return false;
}
void EntityServer::scriptRequestFinished() {
auto scriptRequest = qobject_cast<ResourceRequest*>(sender());
const QString urlString = scriptRequest->getUrl().toString();
if (scriptRequest && scriptRequest->getResult() == ResourceRequest::Success) {
auto scriptContents = scriptRequest->getData();
qInfo() << "Downloaded script:" << scriptContents;
_entityEditFilterEngine.evaluate(scriptContents);
std::static_pointer_cast<EntityTree>(_tree)->initEntityEditFilterEngine(&_entityEditFilterEngine);
scriptRequest->deleteLater();
if (_scriptRequestLoop.isRunning()) {
_scriptRequestLoop.quit();
QScriptProgram program(scriptContents, urlString);
if (hasCorrectSyntax(program)) {
_entityEditFilterEngine.evaluate(scriptContents);
if (!hadUncaughtExceptions(_entityEditFilterEngine, urlString)) {
std::static_pointer_cast<EntityTree>(_tree)->initEntityEditFilterEngine(&_entityEditFilterEngine);
scriptRequest->deleteLater();
if (_scriptRequestLoop.isRunning()) {
_scriptRequestLoop.quit();
}
}
}
return;
} else if (scriptRequest) {
qCritical() << "Failed to download script at" << scriptRequest->getUrl().toString();
qCritical() << "Failed to download script at" << urlString;
// See HTTPResourceRequest::onRequestFinished for interpretation of codes. For example, a 404 is code 6 and 403 is 3. A timeout is 2. Go figure.
qCritical() << "ResourceRequest error was" << scriptRequest->getResult();
} else {