Update strum monorepo to 0.27.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
strum	dependencies	minor	0.19.5 -> 0.27.0
strum_macros	dependencies	minor	0.19.4 -> 0.27.0
strum_macros	dependencies	minor	0.20.1 -> 0.27.0

---

Release Notes

Peternator7/strum (strum)

v0.27.2

Compare Source

• #​141: Adding support for doc comments on EnumDiscriminants generated type.

  • The doc comment will be copied from the variant on the type itself.

• #​435:allow discriminants on empty enum.

• #​443: Change enum table callbacks to FnMut.

• #​444: Add #[automatically_derived] to the impls by @​dandedotdev in #​444

  • This should make the linter less noisy with warnings in generated code.

• #​440: Implement a suffix attribute for serialization of enum variants.

  #[derive(strum::Display)]
  #[strum(suffix=".json")]
  #[strum(serialize_all="snake_case")]
  enum StorageConfiguration {
    PostgresProvider,
    S3StorageProvider,
    AzureStorageProvider,
  }
  
  fn main() {
    let response = SurveyResponse::Other("It was good".into());
    println!("Loading configuration from: {}", StorageConfiguration::PostgresProvider);
    // prints: Loaded Configuration from: postgres_provider.json
  }

• #​446: Drop needless rustversion dependency.

v0.27.1

Compare Source

• #​414: Fix docrs build error.

• #​417: Mention parse_error_ty and parse_error_fn that had been
  left out of the docs accidentally.

• #​421#​331: Implement
  #[strum(transparent)] attribute on IntoStaticStr, Display and AsRefStr that forwards the implmenentation to
  the inner value. Note that for static strings, the inner value must be convertible to an &'static str.

  #[derive(strum::Display)]
  enum SurveyResponse {
    Yes,
    No,
    #[strum(transparent)]
    Other(String)
  }
  
  fn main() {
    let response = SurveyResponse::Other("It was good".into());
    println!("Question: Did you have fun?");
    println!("Answer: {}", response);
    // prints: Answer: It was good
  }

v0.27.0

Compare Source

Highlights

• #​407: Display is now correctly derived in [no_std] projects.
• #​402: EnumIter now implements Send + Sync
• #​400: EnumTryAs now handles attributes on variant fields correctly.
• #​398: strum is now on rust 2021
• #​391: EnumProperties correctly implements get_bool and get_int
  finally. 🎉
• #​380: FromString now supports 2 additional attributes, parse_error_ty
  and parse_error_fn that can be added to use a custom error type rather than the default strum error message.
  • #​410: These attributes accept a Path rather than a String
    to improve behavior with rust-analyzer.

Breaking Changes

• #​384: MSRV is now 1.66.1
• #​391: EnumProperties doesn't provide default implementations anymore.
  This would have required you to manually implement this trait which should be very uncommon.

v0.26.3

Compare Source

• #​344: Hide EnumTable because it's going to be deprecated in the next
  version.
• #​357: Fixes an incompatiblity with itertools by using the fully
  qualified name rather than the inherent method.
• #​345: Allows unnamed tuple like variants to use their variants in
  string interpolation. #[strum(to_string = "Field 0: {0}, Field 1: {1})")] will now work for tuple variants

v0.26.2

Compare Source

• #​337: Fix missing generic impls for EnumTryAs
• #​334: Support prefix in AsRefStr. Technically a breaking change,
  but prefix was just added in 0.26.0 so it's a newer feature and it makes the feature more consisent in general.

v0.26.1

• #​325: use core instead of std in VariantArray.

v0.26.0

Breaking Changes

• The EnumVariantNames macro has been renamed VariantNames. The deprecation warning should steer you in
  the right direction for fixing the warning.
• The Iterator struct generated by EnumIter now has new bounds on it. This shouldn't break code unless you manually
  added the implementation in your code.
• Display now supports format strings using named fields in the enum variant. This should be a no-op for most code.
  However, if you were outputting a string like "Hello {field}", this will now be interpretted as a format string.
• EnumDiscriminant now inherits the repr and discriminant values from your main enum. This makes the discriminant type
  closer to a mirror of the original and that's always the goal.

New features

• The VariantArray macro has been added. This macro adds an associated constant VARIANTS to your enum. The constant
  is a &'static [Self] slice so that you can access all the variants of your enum. This only works on enums that only
  have unit variants.

  use strum::VariantArray;
  
  #[derive(Debug, VariantArray)]
  enum Color {
    Red,
    Blue,
    Green,
  }
  
  fn main() {
    println!("{:?}", Color::VARIANTS); // prints: ["Red", "Blue", "Green"]
  }

• The EnumTable macro has been experimentally added. This macro adds a new type that stores an item for each variant
  of the enum. This is useful for storing a value for each variant of an enum. This is an experimental feature because
  I'm not convinced the current api surface area is correct.

  use strum::EnumTable;
  
  #[derive(Copy, Clone, Debug, EnumTable)]
  enum Color {
    Red,
    Blue,
    Green,
  }
  
  fn main() {
    let mut counts = ColorTable::filled(0);
    for color in &[Color::Red, Color::Red, Color::Green]] {
      counts[color] += 1;
    }
  
    assert_eq!(counts[Color::Red], 2);
    assert_eq!(counts[Color::Blue], 0);
    assert_eq!(counts[Color::Green], 1);
  }

• Display has 2 new features:

  • the strum(prefix = "some_value") attribute on an enum now allows you to prepend a string onto every
    variant when you serialize it.

  • Custom to_string and serialize attributes now support string interopolation on serialization.

PR's Merged

• #​322: avoid collisions on std::fmt::Debug
• #​321: avoid conflicts with consecutive underscores.
• #​314: add additional bounds to EnumIterator
• #​311: add FusedIterator bounds to EnumIterator
• #​297: New macro, add VariantArray
• #​296: adds prefix attribute to To/From String macros.
• #​294: use named enum fields in to_string macro.
• #​288: discriminant enums now inherit the repr from the original enum.
• #​279: Add EnumTable macro to generate a mapping between fieldless variants and data.

v0.25.0

Breaking Changes

• #​261 Upgrade syn dependency to version 2. This bumps the msrv to
  1.56. It's impractical to maintain a package where a core dependency of the ecosystem has a different msrv than this one.

• 270 Change the to_string behavior when using default. Now, when
  using default, the display method will return the display version of the value contained in the enum rather than
  the name of the variant.

  #[derive(strum::Display)]
  enum Color {
    Red,
    Blue,
    Green,
    #[strum(default)]
    Other(String)
  }
  
  fn main() {
    // This used to print "Other", now it prints "Purple"
    assert_eq!(Color::Other("Purple".to_string()).to_string(), "Purple");
  }

  If you want the old behavior, you can use the to_string attribute to override this behavior. See the PR for an example.

• 268 Update the behavior of EnumCount to exclude variants that are
  disabled. This is a breaking change, but the behavior makes it more consistent with other methods.

New Features

• #​257 This PR adds the EnumIs macro that automatically implements
  is_{variant_name} methods for each variant.

  #[derive(EnumIs)]
  enum Color {
      Red,
      Blue,
      Green,
  }
  
  #[test]
  fn simple_test() {
      assert!(Color::Red.is_red());
  }

v0.24.1

• #​220. Add support for PHF in EnumString (opt-in runtime
  performance improvements for large enums as #[strum(use_phf)], requires phf feature and increases MSRV to 1.46)
  • #​224 tweaked the algorithm.
• #​217: Automatically implement TryFrom in FromRepr. This is
  technically a breaking change, but the fix is to just remove the manual implementation of TryFrom so it shouldn't
  be more than a minor inconvenience.

v0.24.0

• #​212. Fix some clippy lints

• #​209. Use core instead of std in a few places.

• #​206. Add get_documentation() to EnumMessage. This provides
  the ability to get the doc comment for a variant. Currently, very little formatting is done. That is subject to change.
  Please do not abuse this feature. Rust docs are meant for developer documentation, not long messages for users. However,
  this may be useful in some situations so we've added support for it.

• #​202. Add a missing doc comment

• #​201. Upgrade Heck version

v0.23.0

• #​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.

v0.22.0

• #​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.

v0.21.0

• 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
    • It is unlikely this will break anyone, but the new signature for functions generated by EnumMessage
      is fn get_message(&self) -> Option<&'static str>.

• Added support for ascii_case_insensitive string comparisons. #​157
  This feature allows FromString impls to match strings that differ in case from the expected variant.

v0.20.0

• Refactors to do better error handling. Thanks @​jplatte for these changes

  • #​133
  • #​134
  • #​135

• Adding vis(scope) to EnumDiscriminants. #​137

  • This feature works best with versions of rust >= 1.34 due to a rustc parsing error in
    earlier versions.
  • Earlier versions can still use vis(r#pub)

• These changes should not be breaking, but the amount of code modified was significant.

• FYI about #​122. The macro renames feature
  will be removed in early 2021. This feature was only necessary in rust 2015 because macros
  didn't support qualified imports so macro names could collide between crates.

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⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

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The artifact failure details are included below:

File name: sanity-bin/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path sanity-bin/Cargo.toml --workspace
error: failed to acquire package cache lock

Caused by:
  failed to open: /home/ubuntu/.cargo/.package-cache

Caused by:
  failed to create directory `/home/ubuntu/.cargo`

Caused by:
  File exists (os error 17)

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path sanity-lib/Cargo.toml --package [email protected] --precise 0.27.2
error: failed to acquire package cache lock

Caused by:
  failed to open: /home/ubuntu/.cargo/.package-cache

Caused by:
  failed to create directory `/home/ubuntu/.cargo`

Caused by:
  File exists (os error 17)