Release 1.0.221

Deprecate serde_if_integer128 macro

Cargo.toml

@@ -10,6 +10,7 @@ resolver = "2"
 
 [patch.crates-io]
 serde = { path = "serde" }
+serde_core = { path = "serde_core" }
 
 [workspace.dependencies]
 proc-macro2 = { version = "1.0.74", default-features = false }

serde/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde"
-version = "1.0.220"
+version = "1.0.221"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 build = "build.rs"
 categories = ["encoding", "no-std", "no-std::no-alloc"]
@@ -15,7 +15,7 @@ repository = "https://github.com/serde-rs/serde"
 rust-version = "1.56"
 
 [dependencies]
-serde_core = { version = "=1.0.220", path = "../serde_core", default-features = false, features = ["result"] }
+serde_core = { version = "=1.0.221", path = "../serde_core", default-features = false, features = ["result"] }
 serde_derive = { version = "1", optional = true, path = "../serde_derive" }
 
 [package.metadata.playground]

serde/src/integer128.rs

@@ -0,0 +1,14 @@
+#[macro_export]
+#[deprecated = "
+This macro has no effect on any version of Serde released in the past 2 years.
+It was used long ago in crates that needed to support Rustc older than 1.26.0,
+or Emscripten targets older than 1.40.0, which did not yet have 128-bit integer
+support. These days Serde requires a Rust compiler newer than that so 128-bit
+integers are always supported.
+"]
+#[doc(hidden)]
+macro_rules! serde_if_integer128 {
+    ($($tt:tt)*) => {
+        $($tt)*
+    };
+}

serde/src/lib.rs

@@ -95,7 +95,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 // Serde types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/serde/1.0.220")]
+#![doc(html_root_url = "https://docs.rs/serde/1.0.221")]
 // Support using Serde without the standard library!
 #![cfg_attr(not(feature = "std"), no_std)]
 // Show which crate feature enables conditionally compiled APIs in documentation.
@@ -231,10 +231,12 @@ macro_rules! tri {
 ////////////////////////////////////////////////////////////////////////////////
 
 pub use serde_core::{
-    de, forward_to_deserialize_any, ser, serde_if_integer128, Deserialize, Deserializer, Serialize,
-    Serializer,
+    de, forward_to_deserialize_any, ser, Deserialize, Deserializer, Serialize, Serializer,
 };
 
+#[macro_use]
+mod integer128;
+
 // Used by generated code and doc tests. Not public API.
 #[doc(hidden)]
 #[path = "private/mod.rs"]

serde_core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde_core"
-version = "1.0.220"
+version = "1.0.221"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 build = "build.rs"
 categories = ["encoding", "no-std", "no-std::no-alloc"]
@@ -36,7 +36,7 @@ rustdoc-args = [
 # is compatible with exactly one serde release because the generated code
 # involves nonpublic APIs which are not bound by semver.
 [target.'cfg(any())'.dependencies]
-serde_derive = { version = "=1.0.220", path = "../serde_derive" }
+serde_derive = { version = "=1.0.221", path = "../serde_derive" }
 
 
 ### FEATURES #################################################################

serde_core/README.md

@@ -4,9 +4,25 @@ The `serde_core` crate contains Serde's trait definitions with **no support for
 In crates that derive an implementation of `Serialize` or `Deserialize`, you
 must depend on the [`serde`] crate, not `serde_core`.
 
+[`serde`]: https://crates.io/crates/serde
+
 In crates that handwrite implementations of Serde traits, or only use them as
 trait bounds, depending on `serde_core` is permitted. But `serde` re-exports all
 of these traits and can be used for this use case too. If in doubt, disregard
 `serde_core` and always use `serde`.
 
-[`serde`]: https://crates.io/crates/serde
+Crates that depend on `serde_core` instead of `serde` are able to compile in
+parallel with `serde_derive` even when `serde`'s "derive" feature is turned on,
+as shown in the following build timings.
+
+<br>
+
+| When `serde_json` depends on `serde` |
+|---|
+| <img src="https://github.com/user-attachments/assets/78dc179c-6ab1-4059-928c-1474b0d9d0bb"> |
+
+<br>
+
+| When `serde_json` depends on `serde_core` |
+|---|
+| <img src="https://github.com/user-attachments/assets/6b6cff5e-3e45-4ac7-9db1-d99ee8b9f5f7"> |

serde_core/src/integer128.rs

@@ -1,9 +0,0 @@
-// No longer used. Old versions of serde used this macro for supporting targets
-// that did not yet have 128-bit integer support.
-#[macro_export]
-#[doc(hidden)]
-macro_rules! serde_if_integer128 {
-    ($($tt:tt)*) => {
-        $($tt)*
-    };
-}

serde_core/src/lib.rs

@@ -7,17 +7,35 @@
 //! In crates that derive an implementation of `Serialize` or `Deserialize`, you
 //! must depend on the [`serde`] crate, not `serde_core`.
 //!
+//! [`serde`]: https://crates.io/crates/serde
+//!
 //! In crates that handwrite implementations of Serde traits, or only use them
 //! as trait bounds, depending on `serde_core` is permitted. But `serde`
 //! re-exports all of these traits and can be used for this use case too. If in
 //! doubt, disregard `serde_core` and always use `serde`.
 //!
-//! [`serde`]: https://crates.io/crates/serde
+//! Crates that depend on `serde_core` instead of `serde` are able to compile in
+//! parallel with `serde_derive` even when `serde`'s "derive" feature is turned on,
+//! as shown in the following build timings.
+//!
+//! <br>
+//!
+//! <table>
+//! <tr><td align="center">When <code>serde_json</code> depends on <code>serde</code></td></tr>
+//! <tr><td><img src="https://github.com/user-attachments/assets/78dc179c-6ab1-4059-928c-1474b0d9d0bb"></td></tr>
+//! </table>
+//!
+//! <br>
+//!
+//! <table>
+//! <tr><td align="center">When <code>serde_json</code> depends on <code>serde_core</code></td></tr>
+//! <tr><td><img src="https://github.com/user-attachments/assets/6b6cff5e-3e45-4ac7-9db1-d99ee8b9f5f7"></td></tr>
+//! </table>
 
 ////////////////////////////////////////////////////////////////////////////////
 
 // Serde types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/serde/1.0.220")]
+#![doc(html_root_url = "https://docs.rs/serde/1.0.221")]
 // Support using Serde without the standard library!
 #![cfg_attr(not(feature = "std"), no_std)]
 // Show which crate feature enables conditionally compiled APIs in documentation.
@@ -222,9 +240,6 @@ macro_rules! tri {
 #[macro_use]
 mod macros;
 
-#[macro_use]
-mod integer128;
-
 pub mod de;
 pub mod ser;
 

serde_derive/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde_derive"
-version = "1.0.220"
+version = "1.0.221"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 categories = ["no-std", "no-std::no-alloc"]
 description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"

serde_derive/src/lib.rs

@@ -13,7 +13,7 @@
 //!
 //! [https://serde.rs/derive.html]: https://serde.rs/derive.html
 
-#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.220")]
+#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.221")]
 #![cfg_attr(not(check_cfg), allow(unexpected_cfgs))]
 // Ignored clippy lints
 #![allow(

test_suite/Cargo.toml

@@ -18,4 +18,4 @@ rustversion = "1.0"
 serde = { path = "../serde", features = ["rc"] }
 serde_derive = { path = "../serde_derive", features = ["deserialize_in_place"] }
 serde_test = "1.0.176"
-trybuild = { version = "1.0.97", features = ["diff"] }
+trybuild = { version = "1.0.108", features = ["diff"] }