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Clippy bug: rust-lang/rust-clippy#7422

    error: use of irregular braces for `format_args!` macro
     --> tests/test.rs:8:30
      |
    8 |     #[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
      |                              ^^^^^^^^^^^^^^^^
      |
      = note: `-D clippy::nonstandard-macro-braces` implied by `-D clippy::all`
    help: consider writing `Deserialize_repr`
     --> tests/test.rs:8:30
      |
    8 |     #[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
      |                              ^^^^^^^^^^^^^^^^
      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonstandard_macro_braces
      = note: this error originates in the derive macro `Deserialize_repr` (in Nightly builds, run with -Z macro-backtrace for more info)

    error: use of irregular braces for `format_args!` macro
      --> tests/test.rs:56:30
       |
    56 |     #[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
       |                              ^^^^^^^^^^^^^^^^
       |
    help: consider writing `Deserialize_repr`
      --> tests/test.rs:56:30
       |
    56 |     #[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
       |                              ^^^^^^^^^^^^^^^^
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonstandard_macro_braces
       = note: this error originates in the derive macro `Deserialize_repr` (in Nightly builds, run with -Z macro-backtrace for more info)
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Serde repr derive

github crates.io docs.rs build status

This crate provides a derive macro to derive Serde's Serialize and Deserialize traits in a way that delegates to the underlying repr of a C-like enum.

[dependencies]
serde = "1.0"
serde_repr = "0.1"
use serde_repr::{Serialize_repr, Deserialize_repr};

#[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
#[repr(u8)]
enum SmallPrime {
    Two = 2,
    Three = 3,
    Five = 5,
    Seven = 7,
}

fn main() -> serde_json::Result<()> {
    let j = serde_json::to_string(&SmallPrime::Seven)?;
    assert_eq!(j, "7");

    let p: SmallPrime = serde_json::from_str("2")?;
    assert_eq!(p, SmallPrime::Two);

    Ok(())
}

License

Licensed under either of Apache License, Version 2.0 or MIT license at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

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Serialize and deserialize C-like enum as underlying repr

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