Rename serde1 feature to serde.

.github/workflows/gh-pages.yml

@@ -30,7 +30,7 @@ jobs:
           RUSTDOCFLAGS: --cfg doc_cfg
         # --all builds all crates, but with default features for other crates (okay in this case)
         run: |
-          cargo doc --all --features nightly,serde1,getrandom,small_rng
+          cargo doc --all --features nightly,serde,getrandom,small_rng
           cp utils/redirect.html target/doc/index.html
           rm target/doc/.lock
 

.github/workflows/test.yml

@@ -95,21 +95,21 @@ jobs:
           cargo test --target ${{ matrix.target }} --examples
       - name: Test rand (all stable features)
         run: |
-          cargo test --target ${{ matrix.target }} --features=serde1,log,small_rng
+          cargo test --target ${{ matrix.target }} --features=serde,log,small_rng
       - name: Test rand_core
         run: |
           cargo test --target ${{ matrix.target }} --manifest-path rand_core/Cargo.toml
           cargo test --target ${{ matrix.target }} --manifest-path rand_core/Cargo.toml --no-default-features
           cargo test --target ${{ matrix.target }} --manifest-path rand_core/Cargo.toml --no-default-features --features=alloc,getrandom
       - name: Test rand_distr
         run: |
-          cargo test --target ${{ matrix.target }} --manifest-path rand_distr/Cargo.toml --features=serde1
+          cargo test --target ${{ matrix.target }} --manifest-path rand_distr/Cargo.toml --features=serde
           cargo test --target ${{ matrix.target }} --manifest-path rand_distr/Cargo.toml --no-default-features
           cargo test --target ${{ matrix.target }} --manifest-path rand_distr/Cargo.toml --no-default-features --features=std,std_math
       - name: Test rand_pcg
-        run: cargo test --target ${{ matrix.target }} --manifest-path rand_pcg/Cargo.toml --features=serde1
+        run: cargo test --target ${{ matrix.target }} --manifest-path rand_pcg/Cargo.toml --features=serde
       - name: Test rand_chacha
-        run: cargo test --target ${{ matrix.target }} --manifest-path rand_chacha/Cargo.toml --features=serde1
+        run: cargo test --target ${{ matrix.target }} --manifest-path rand_chacha/Cargo.toml --features=serde
 
   test-cross:
     runs-on: ${{ matrix.os }}
@@ -138,11 +138,11 @@ jobs:
       - name: Test
         run: |
           # all stable features:
-          cross test --no-fail-fast --target ${{ matrix.target }} --features=serde1,log,small_rng
+          cross test --no-fail-fast --target ${{ matrix.target }} --features=serde,log,small_rng
           cross test --no-fail-fast --target ${{ matrix.target }} --examples
           cross test --no-fail-fast --target ${{ matrix.target }} --manifest-path rand_core/Cargo.toml
-          cross test --no-fail-fast --target ${{ matrix.target }} --manifest-path rand_distr/Cargo.toml --features=serde1
-          cross test --no-fail-fast --target ${{ matrix.target }} --manifest-path rand_pcg/Cargo.toml --features=serde1
+          cross test --no-fail-fast --target ${{ matrix.target }} --manifest-path rand_distr/Cargo.toml --features=serde
+          cross test --no-fail-fast --target ${{ matrix.target }} --manifest-path rand_pcg/Cargo.toml --features=serde
           cross test --no-fail-fast --target ${{ matrix.target }} --manifest-path rand_chacha/Cargo.toml
 
   test-miri:
@@ -159,10 +159,10 @@ jobs:
           cargo miri test --no-default-features --lib --tests
           cargo miri test --features=log,small_rng
           cargo miri test --manifest-path rand_core/Cargo.toml
-          cargo miri test --manifest-path rand_core/Cargo.toml --features=serde1
+          cargo miri test --manifest-path rand_core/Cargo.toml --features=serde
           cargo miri test --manifest-path rand_core/Cargo.toml --no-default-features
           #cargo miri test --manifest-path rand_distr/Cargo.toml # no unsafe and lots of slow tests
-          cargo miri test --manifest-path rand_pcg/Cargo.toml --features=serde1
+          cargo miri test --manifest-path rand_pcg/Cargo.toml --features=serde
           cargo miri test --manifest-path rand_chacha/Cargo.toml --no-default-features
 
   test-no-std:

CHANGELOG.md

@@ -19,6 +19,7 @@ You may also find the [Upgrade Guide](https://rust-random.github.io/book/update.
 - Allow `UniformFloat::new` samples and `UniformFloat::sample_single` to yield `high` (#1462)
 - Fix portability of `rand::distributions::Slice` (#1469)
 - Rename `rand::distributions` to `rand::distr` (#1470)
+- The `serde1` feature has been renamed `serde` (#1477)
 
 ## [0.9.0-alpha.1] - 2024-03-18
 - Add the `Slice::num_choices` method to the Slice distribution (#1402)

Cargo.toml

@@ -24,13 +24,13 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs", "--generate-link-to-definition"]
 
 [package.metadata.playground]
-features = ["small_rng", "serde1"]
+features = ["small_rng", "serde"]
 
 [features]
 # Meta-features:
 default = ["std", "std_rng", "getrandom", "small_rng"]
 nightly = [] # some additions requiring nightly Rust
-serde1 = ["serde", "rand_core/serde1"]
+serde = ["dep:serde", "rand_core/serde"]
 
 # Option (enabled by default): without "std" rand uses libcore; this option
 # enables functionality expected to be available on a standard platform.
@@ -74,6 +74,6 @@ zerocopy = { version = "0.7.33", default-features = false, features = ["simd"] }
 
 [dev-dependencies]
 rand_pcg = { path = "rand_pcg", version = "=0.9.0-alpha.1" }
-# Only to test serde1
+# Only to test serde
 bincode = "1.2.1"
 rayon = "1.7"

rand_chacha/CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+- The `serde1` feature has been renamed `serde` (#1477)
+
 ## [0.9.0-alpha.1] - 2024-03-18
 
 ## [0.9.0-alpha.0] - 2024-02-18

rand_chacha/Cargo.toml

@@ -25,12 +25,12 @@ ppv-lite86 = { version = "0.2.14", default-features = false, features = ["simd"]
 serde = { version = "1.0", features = ["derive"], optional = true }
 
 [dev-dependencies]
-# Only to test serde1
+# Only to test serde
 serde_json = "1.0"
 rand_core = { path = "../rand_core", version = "=0.9.0-alpha.1", features = ["getrandom"] }
 
 [features]
 default = ["std"]
 getrandom = ["rand_core/getrandom"]
 std = ["ppv-lite86/std", "rand_core/std"]
-serde1 = ["serde"]
+serde = ["dep:serde"]

rand_chacha/src/chacha.rs

@@ -18,7 +18,7 @@ use crate::guts::ChaCha;
 use rand_core::block::{BlockRng, BlockRngCore, CryptoBlockRng};
 use rand_core::{CryptoRng, RngCore, SeedableRng};
 
-#[cfg(feature = "serde1")]
+#[cfg(feature = "serde")]
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
 
 // NB. this must remain consistent with some currently hard-coded numbers in this module
@@ -276,7 +276,7 @@ macro_rules! chacha_impl {
         }
         impl Eq for $ChaChaXRng {}
 
-        #[cfg(feature = "serde1")]
+        #[cfg(feature = "serde")]
         impl Serialize for $ChaChaXRng {
             fn serialize<S>(&self, s: S) -> Result<S::Ok, S::Error>
             where
@@ -285,7 +285,7 @@ macro_rules! chacha_impl {
                 $abst::$ChaChaXRng::from(self).serialize(s)
             }
         }
-        #[cfg(feature = "serde1")]
+        #[cfg(feature = "serde")]
         impl<'de> Deserialize<'de> for $ChaChaXRng {
             fn deserialize<D>(d: D) -> Result<Self, D::Error>
             where
@@ -296,14 +296,14 @@ macro_rules! chacha_impl {
         }
 
         mod $abst {
-            #[cfg(feature = "serde1")]
+            #[cfg(feature = "serde")]
             use serde::{Deserialize, Serialize};
 
             // The abstract state of a ChaCha stream, independent of implementation choices. The
             // comparison and serialization of this object is considered a semver-covered part of
             // the API.
             #[derive(Debug, PartialEq, Eq)]
-            #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+            #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
             pub(crate) struct $ChaChaXRng {
                 seed: [u8; 32],
                 stream: u64,
@@ -362,12 +362,12 @@ chacha_impl!(
 mod test {
     use rand_core::{RngCore, SeedableRng};
 
-    #[cfg(feature = "serde1")]
+    #[cfg(feature = "serde")]
     use super::{ChaCha12Rng, ChaCha20Rng, ChaCha8Rng};
 
     type ChaChaRng = super::ChaCha20Rng;
 
-    #[cfg(feature = "serde1")]
+    #[cfg(feature = "serde")]
     #[test]
     fn test_chacha_serde_roundtrip() {
         let seed = [
@@ -405,7 +405,7 @@ mod test {
     // However testing for equivalence of serialized data is difficult, and there shouldn't be any
     // reason we need to violate the stronger-than-needed condition, e.g. by changing the field
     // definition order.
-    #[cfg(feature = "serde1")]
+    #[cfg(feature = "serde")]
     #[test]
     fn test_chacha_serde_format_stability() {
         let j = r#"{"seed":[4,8,15,16,23,42,4,8,15,16,23,42,4,8,15,16,23,42,4,8,15,16,23,42,4,8,15,16,23,42,4,8],"stream":27182818284,"word_pos":314159265359}"#;

rand_core/CHANGELOG.md

@@ -6,6 +6,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 - Bump the MSRV to 1.61.0
+- The `serde1` feature has been renamed `serde` (#1477)
 
 ## [0.9.0-alpha.1] - 2024-03-18
 

rand_core/Cargo.toml

@@ -27,7 +27,7 @@ all-features = true
 [features]
 std = ["alloc", "getrandom?/std"]
 alloc = []  # enables Vec and Box support without std
-serde1 = ["serde"] # enables serde for BlockRng wrapper
+serde = ["dep:serde"] # enables serde for BlockRng wrapper
 
 [dependencies]
 serde = { version = "1", features = ["derive"], optional = true }

rand_core/README.md

@@ -67,7 +67,7 @@ problems where one crate implicitly requires `rand_core` with `std` support and
 another crate requires `rand` *without* `std` support. However, the `rand` crate
 continues to enable `std` support by default, both for itself and `rand_core`.
 
-The `serde1` feature can be used to derive `Serialize` and `Deserialize` for RNG
+The `serde` feature can be used to derive `Serialize` and `Deserialize` for RNG
 implementations that use the `BlockRng` or `BlockRng64` wrappers.
 
 

rand_core/src/block.rs

@@ -56,7 +56,7 @@
 use crate::impls::{fill_via_u32_chunks, fill_via_u64_chunks};
 use crate::{CryptoRng, RngCore, SeedableRng, TryRngCore};
 use core::fmt;
-#[cfg(feature = "serde1")]
+#[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
 
 /// A trait for RNGs which do not generate random numbers individually, but in
@@ -116,9 +116,9 @@ pub trait CryptoBlockRng: BlockRngCore {}
 /// [`next_u64`]: RngCore::next_u64
 /// [`fill_bytes`]: RngCore::fill_bytes
 #[derive(Clone)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(
-    feature = "serde1",
+    feature = "serde",
     serde(
         bound = "for<'x> R: Serialize + Deserialize<'x> + Sized, for<'x> R::Results: Serialize + Deserialize<'x>"
     )
@@ -283,7 +283,7 @@ impl<R: CryptoBlockRng + BlockRngCore<Item = u32>> CryptoRng for BlockRng<R> {}
 /// [`next_u64`]: RngCore::next_u64
 /// [`fill_bytes`]: RngCore::fill_bytes
 #[derive(Clone)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct BlockRng64<R: BlockRngCore + ?Sized> {
     results: R::Results,
     index: usize,

rand_distr/CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
+- The `serde1` feature has been renamed `serde` (#1477)
+
 ### Added
 - Add plots for `rand_distr` distributions to documentation (#1434)
 - Add `PertBuilder`, fix case where mode ≅ mean (#1452)

rand_distr/Cargo.toml

@@ -29,7 +29,7 @@ alloc = ["rand/alloc"]
 # feature (default-enabled) will have the same effect.
 std_math = ["num-traits/std"]
 
-serde1 = ["serde", "rand/serde1"]
+serde = ["dep:serde", "rand/serde"]
 
 [dependencies]
 rand = { path = "..", version = "=0.9.0-alpha.1", default-features = false }

rand_distr/README.md

@@ -35,7 +35,7 @@ can be enabled. (Note that any other crate depending on `num-traits` with the
 -   `alloc` (enabled by default): required for some distributions when not using
     `std` (in particular, `Dirichlet` and `WeightedAliasIndex`).
 -   `std_math`: see above on portability and libm
--   `serde1`: implement (de)seriaialization using `serde`
+-   `serde`: implement (de)seriaialization using `serde`
 
 ## Links
 

rand_distr/src/beta.rs

@@ -13,7 +13,7 @@ use crate::{Distribution, Open01};
 use core::fmt;
 use num_traits::Float;
 use rand::Rng;
-#[cfg(feature = "serde1")]
+#[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
 
 /// The algorithm used for sampling the Beta distribution.
@@ -25,15 +25,15 @@ use serde::{Deserialize, Serialize};
 /// Communications of the ACM 21, 317-322.
 /// https://doi.org/10.1145/359460.359482
 #[derive(Clone, Copy, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 enum BetaAlgorithm<N> {
     BB(BB<N>),
     BC(BC<N>),
 }
 
 /// Algorithm BB for `min(alpha, beta) > 1`.
 #[derive(Clone, Copy, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 struct BB<N> {
     alpha: N,
     beta: N,
@@ -42,7 +42,7 @@ struct BB<N> {
 
 /// Algorithm BC for `min(alpha, beta) <= 1`.
 #[derive(Clone, Copy, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 struct BC<N> {
     alpha: N,
     beta: N,
@@ -77,7 +77,7 @@ struct BC<N> {
 /// println!("{} is from a Beta(2, 5) distribution", v);
 /// ```
 #[derive(Clone, Copy, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Beta<F>
 where
     F: Float,
@@ -91,7 +91,7 @@ where
 
 /// Error type returned from [`Beta::new`].
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub enum Error {
     /// `alpha <= 0` or `nan`.
     AlphaTooSmall,

rand_distr/src/binomial.rs

@@ -44,7 +44,7 @@ use rand::Rng;
 /// println!("{} is from a binomial distribution", v);
 /// ```
 #[derive(Clone, Copy, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct Binomial {
     /// Number of trials.
     n: u64,

rand_distr/src/cauchy.rs

@@ -54,7 +54,7 @@ use rand::Rng;
 /// Note that at least for `f32`, results are not fully portable due to minor
 /// differences in the target system's *tan* implementation, `tanf`.
 #[derive(Clone, Copy, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct Cauchy<F>
 where
     F: Float + FloatConst,

rand_distr/src/chi_squared.rs

@@ -15,7 +15,7 @@ use crate::{Distribution, Exp1, Gamma, Open01, StandardNormal};
 use core::fmt;
 use num_traits::Float;
 use rand::Rng;
-#[cfg(feature = "serde1")]
+#[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
 
 /// The [chi-squared distribution](https://en.wikipedia.org/wiki/Chi-squared_distribution) `χ²(k)`.
@@ -45,7 +45,7 @@ use serde::{Deserialize, Serialize};
 /// println!("{} is from a χ²(11) distribution", v)
 /// ```
 #[derive(Clone, Copy, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct ChiSquared<F>
 where
     F: Float,
@@ -58,7 +58,7 @@ where
 
 /// Error type returned from [`ChiSquared::new`] and [`StudentT::new`](crate::StudentT::new).
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub enum Error {
     /// `0.5 * k <= 0` or `nan`.
     DoFTooSmall,
@@ -78,7 +78,7 @@ impl fmt::Display for Error {
 impl std::error::Error for Error {}
 
 #[derive(Clone, Copy, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 enum ChiSquaredRepr<F>
 where
     F: Float,

rand_distr/src/dirichlet.rs

@@ -92,7 +92,7 @@ where
 }
 
 #[derive(Clone, Debug, PartialEq)]
-#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 struct DirichletFromBeta<F, const N: usize>
 where
     F: Float,