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Reimplement #[bitcode(with_serde)]

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难度
5/5
预计耗时
一周以上
新手友好度
35/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
停滞
技术栈
rust
领域
tooling

调研方向

该 issue 未指定文件、测试或入口点。首先比较当前的 0.6 实现与之前的 0.5 功能,然后确定 #[bitcode(with_serde)] 应如何支持 serde::Serialize 字段,同时处理所述的集合限制。当该功能已针对所请求的第三方类型重新实现,并且其行为得到验证时,即视为完成。

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描述

There have been many requests for supporting 3rd party crates such as: time, rust_decimal, uuid, and chrono. Rather than implementing support manually for these crates and more, an easier solution is to allow types implementing serde::Serialize inside types implementing bitcode::Encode.

This was previously a feature in 0.5, but we didn't reimplement it in the 0.6 rewrite due due to technical limitations. I have since found a path forward and intend to add this feature to 0.6.

The downsides of using serde instead of implementing these types in native bitcode are:

  1. Worse performance
  2. Requiring #[bitcode(with_serde)] annotations on every field where serde is used
  3. Doesn't work well on collection types since it forces everything inside them to use serde

1 and 2 aren't much of an issue if serde is used infrequently. 3 poses more of an issue, but so far none of the types requested are collections. We could mitigate it by implementing some of the popular collections such as IndexMap.

主要语言
Rust
星标
675
派生
61
PR 合并指标
30 天内没有已合并 PR

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