| use serde::{Deserialize, Deserializer, Serializer, de}; | |
| pub fn serialize<S>(value: &u64, serializer: S) -> Result<S::Ok, S::Error> | |
| where | |
| S: Serializer, | |
| { | |
| if *value == 0 { | |
| serializer.serialize_str("") | |
| } else { | |
| serializer.collect_str(&value) | |
| } | |
| } | |
| pub fn deserialize<'de, D>(deserializer: D) -> Result<u64, D::Error> | |
| where | |
| D: Deserializer<'de>, | |
| { | |
| let str = &String::deserialize(deserializer)?; | |
| if str.is_empty() { | |
| Ok(0) | |
| } else { | |
| str.parse().map_err(de::Error::custom) | |
| } | |
| } | |