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`InvalidUri` errors could probably include the invalid bytes

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1-2 天
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42/100
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
networking

调研方向

定位 InvalidUri 类型和 Uri::from_shared 解析路径,然后检查它们的 fmt::Display 和 fmt::Debug 实现。跟踪将输入转换为 Bytes 的其他解析方法。当无效输入保留在错误中并包含在其格式化输出中,且测试覆盖生成的错误值和消息时,即表示完成。

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描述

The InvalidUri error type is returned when trying to parse an input as a URI, if the bytes are not a valid URI. This error type does not contain the value that we were trying to parse, but does indicate how the input was invalid.

Since all methods of parsing a value as a Uri either take a Bytes or convert the input (string or byte slice) into a Bytes, the error type probably could include the input, and format it as part of their fmt::Display/fmt::Debug implementations. Uri::from_shared takes a Bytes by value, so returning it in the error value shouldn't have a significant performance cost --- if we're trying to parse a URI from an &str or &[u8], we will have already copied it in order to convert it into a Bytes, and if the input was itself a Bytes, the reference count has already been incremented in order to call Uri::from_shared.

This would make it much easier for an application to display the invalid input to the user, which is desirable, especially in cases where the invalid URI came from user input.

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Rust
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