fix(deps): update rust crate strum to 0.27

[oep-renovate]

This PR contains the following updates:

Package	Type	Update	Change
strum	dependencies	minor	0.25 -> 0.27

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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.

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