serde-big-array-options

是 serde_with 的更简单替代品。如果您需要的不仅仅是 [Option<T>;N]，请使用它。

使用方法

const DECK_SIZE:usize = 52;

#[derive(Debug, Copy, Clone, Serialize, Deserialize)]
pub struct Game {
    #[serde(
        serialize_with = "serde_big_array_options::serialize",
        deserialize_with = "serde_big_array_options::deserialize"
    )]
    pub back_in_deck: [Option<usize>; DECK_SIZE],
}