Merge branch 'master' of https://github.com/Peternator7/strum into peternator7/deprecate-renames

.travis.yml

@@ -3,7 +3,7 @@ rust:
   - stable
   - beta
   - nightly
-  - 1.31.1
+  - 1.32.0
 matrix:
   allow_failures:
     - rust: nightly

README.md

@@ -11,9 +11,9 @@ Strum is a set of macros and traits for working with enums and strings easier in
 
 # Compatibility
 
-Strum is compatible with versions of rustc >= 1.31.0. That's the earliest version of stable rust that supports
-impl trait. Pull Requests that improve compatibility with older versions are welcome, but new feature work
-will focus on the current version of rust with an effort to avoid breaking compatibility with older versions.
+Strum is compatible with versions of rustc >= 1.32.0. Pull Requests that improve compatibility with older
+versions are welcome, but new feature work will focus on the current version of rust with an effort to
+avoid breaking compatibility with older versions.
 
 # Including Strum in Your Project
 

appveyor.yml

@@ -38,10 +38,10 @@ environment:
 ### MSVC Toolchains ###
 
   # MSRC 64-bit MSVC
-    - channel: 1.31.1
+    - channel: 1.32.0
       target: x86_64-pc-windows-msvc
   # MSRC 32-bit MSVC
-    - channel: 1.31.1
+    - channel: 1.32.0
       target: i686-pc-windows-msvc
   # Stable 64-bit MSVC
     - channel: stable
@@ -67,10 +67,10 @@ environment:
 ### GNU Toolchains ###
 
   # MSRC 64-bit GNU
-    - channel: 1.31.1
+    - channel: 1.32.0
       target: x86_64-pc-windows-gnu
   # MSRC 32-bit GNU
-    - channel: 1.31.1
+    - channel: 1.32.0
       target: i686-pc-windows-gnu
   # Stable 64-bit GNU
     - channel: stable

strum_macros/src/lib.rs

@@ -492,11 +492,15 @@ pub fn enum_properties(input: proc_macro::TokenStream) -> proc_macro::TokenStrea
 
 /// Generate a new type with only the discriminant names.
 ///
-/// Given an enum named `MyEnum`, generates another enum called `MyEnumDiscriminants` with the same variants, without any data fields.
-/// This is useful when you wish to determine the variant of an enum from a String, but the variants contain any
-/// non-`Default` fields. By default, the generated enum has the following derives:
-/// `Clone, Copy, Debug, PartialEq, Eq`. You can add additional derives using the
-/// `#[strum_discriminants(derive(AdditionalDerive))]` attribute.
+/// Given an enum named `MyEnum`, generates another enum called `MyEnumDiscriminants` with the same
+/// variants but without any data fields. This is useful when you wish to determine the variant of
+/// an `enum` but one or more of the variants contains a non-`Default` field. `From`
+/// implementations are generated so that you can easily convert from `MyEnum` to
+/// `MyEnumDiscriminants`.
+///
+/// By default, the generated enum has the following derives: `Clone, Copy, Debug, PartialEq, Eq`.
+/// You can add additional derives using the `#[strum_discriminants(derive(AdditionalDerive))]`
+/// attribute.
 ///
 /// ```
 /// // Bring trait into scope
@@ -536,6 +540,17 @@ pub fn enum_properties(input: proc_macro::TokenStream) -> proc_macro::TokenStrea
 ///     vec![MyVariants::Variant0, MyVariants::Variant1],
 ///     MyVariants::iter().collect::<Vec<_>>()
 /// );
+///
+/// // Make use of the auto-From conversion to check whether an instance of `MyEnum` matches a
+/// // `MyEnumDiscriminants` discriminant.
+/// assert_eq!(
+///     MyEnumDiscriminants::Variant0,
+///     MyEnum::Variant0(NonDefault).into()
+/// );
+/// assert_eq!(
+///     MyEnumDiscriminants::Variant0,
+///     MyEnumDiscriminants::from(MyEnum::Variant0(NonDefault))
+/// );
 /// ```
 ///
 /// It is also possible to specify the visibility (e.g. `pub`/`pub(crate)`/etc.)