Bump strum_macros from 0.20.1 to 0.23.1 in /src/rust/engine

[dependabot]

Bumps strum_macros from 0.20.1 to 0.23.1.

Changelog

Sourced from strum_macros's changelog.

0.23.1

• #193 Fixes an ambiguity introduced by #186 when your enum has a variant called Error.

• #192 The work done in #189 was lost in other PR's. This re-added the functionality to support no-std.

0.23.0

• #185 Adds the FromRepr derive that adds a from_repr(x: usize) -> Option<Self> method to your enum. This lets you convert integer values to your enum. If you specify a #[repr(..)] attribute on your enum, or use an explicit discriminant, this will be incorporated into the derive.

  • from_repr will be const if you use a recent rust version.
  • This cannot be a trait method currently because only inherent methods support const.

• #186 Automatically implement TryFrom<str> for enums that implement EnumString. This is only enabled for rustc >= 1.34 which is when `TryFrom was stabilized.

  • This is a small breaking change. If you had manually implemented TryFrom<str> for your enum, this will cause a conflict. You can probably remove your manual implementation.

• #189 Use core::result::Result instead of std::result::Result. This should be more portable in no-std environments.

0.22.0

• #180: Deprecates ToString derive. You should use Display instead.

• #178: Deprecates AsStaticStr. This has been undocumented for a while. The recommended method is to derive IntoStaticStr instead.

• #171: Improve no-std support.

• #170: enable changing the path to strum traits. This is necessary if you re-export strum as a submodule in another crate.

0.21.1

• #164 Improve compatibility with older versions of syn.

0.21.0

• Replace std:: with core:: to support no-std projects. #145

• Breaking Changes

  • MSRV is updated to 1.32 because heck does not work in 1.31.1 anymore. Rust 1.32 came out Jan 2019 so hopefully teams have moved to an equal or newer version.
  • #149 Remove the "rename" feature. In Rust 2018, macros should be imported using a qualified path to avoid collisions. strum_macros::EnumString rather than using the "Rename" feature to avoid collisions.
  • #160 enum messages: Make the returned values all 'static

... (truncated)

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[asherf]

I have a fix for this, I will push it once the other PRs land

[dependabot]

Looks like strum_macros is up-to-date now, so this is no longer needed.