EcsDeserializer::EcsDeserializer(
const std::string& source_name, std::istream& stream,
Entity_manager& m, asset::Asset_manager& assets, Component_filter filter)
: sf2::JsonDeserializer(
format::Json_reader{stream, create_error_handler(source_name)},
create_error_handler(source_name) ),
manager(m), assets(assets), filter(filter) {
}
/**
* Use an error handler and test it by executing a query that raises an error.
*/
int
cerror_example_2(XQC_Implementation* impl)
{
XQC_Expression* lExpr;
XQC_DynamicContext* lCtx;
XQC_ErrorHandler* lErrorHandler = create_error_handler();
XQC_Sequence* lResult;
// compile the query
impl->prepare(impl, "1 div 0", NULL, &lExpr);
// set the error handler for handling errors
// during query execution
lExpr->create_context(lExpr, &lCtx);
lCtx->set_error_handler(lCtx, lErrorHandler);
// execute it and iterate results
lExpr->execute(lExpr, lCtx, &lResult);
while (lResult->next(lResult) == XQC_NO_ERROR);
// release all resources
lResult->free(lResult);
lExpr->free(lExpr);
lCtx->free(lCtx);
free(lErrorHandler);
return gError == XQC_DYNAMIC_ERROR ? 1 : 0;
}
int
cerror_example_3(XQC_Implementation* impl)
{
XQC_Error lError = XQC_NO_ERROR;
XQC_Expression* lExpr;
XQC_StaticContext* lCtx;
const char* lStringValue;
XQC_Sequence* lResult;
XQC_ErrorHandler* lErrorHandler = create_error_handler();
// Assign error handler to the static context
impl->create_context(impl, &lCtx);
lCtx->set_error_handler(lCtx, lErrorHandler);
// compile the query and get the result as a sequence
lError = impl->prepare(impl, "for $i in (3, 2, 1, 0) return 3 div $i",
lCtx, &lExpr);
lExpr->execute(lExpr, NULL, &lResult);
// an error is reported during the last for iteration
// the error callback function is called and the loop terminates
while ( lResult->next(lResult) == XQC_NO_ERROR ) {
lResult->string_value(lResult, &lStringValue);
printf("%s ", lStringValue);
}
// release all aquired resources
free(lErrorHandler);
lResult->free(lResult);
lExpr->free(lExpr);
lCtx->free(lCtx);
return (gError == XQC_DYNAMIC_ERROR && lError == XQC_NO_ERROR) ? 1 : 0;
}
/**
* Use an error handler and test it by preparing a syntactically wrong query.
*/
int
cerror_example_1(XQC_Implementation* impl)
{
XQC_Error lError = XQC_NO_ERROR;
XQC_Expression* lExpr;
XQC_StaticContext* lCtx;
XQC_ErrorHandler* lErrorHandler = create_error_handler();
// Assign error handler to the static context
impl->create_context(impl, &lCtx);
lCtx->set_error_handler(lCtx, lErrorHandler);
// compile the query
lError = impl->prepare(impl, "for $i in 1, 2, 3", lCtx, &lExpr);
// no need to free the query
// because it was not successfully created
free(lErrorHandler);
lCtx->free(lCtx);
return (gError == XQC_STATIC_ERROR && lError == XQC_STATIC_ERROR) ? 1 : 0;
}