in mcrouter/lib/carbon/CarbonMessageConversionUtils-inl.h [68:84]
bool shouldSerialize(const folly::dynamic& val) {
if (opts_.serializeFieldsWithDefaultValue) {
return true;
}
if (val.isBool() && !val.getBool()) {
return false;
} else if (val.isInt() && val.getInt() == 0) {
return false;
} else if (val.isDouble() && val.getDouble() == 0.0) {
return false;
} else if (
(val.isString() || val.isArray() || val.isObject()) && val.empty()) {
return false;
}
return true;
}