Enable doc_cfg and doc_auto_cfg features on docs.rs (#80)

Author: taiki-e

.github/workflows/ci.yml

@@ -87,4 +87,4 @@ jobs:
         run: rustup update nightly && rustup default nightly
       - run: cargo doc --no-deps --all-features
         env:
-          RUSTDOCFLAGS: -Dwarnings
+          RUSTDOCFLAGS: -Dwarnings --cfg docsrs

valuable/Cargo.toml

@@ -27,3 +27,7 @@ criterion = "0.3"
 [[bench]]
 name = "structable"
 harness = false
+
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]

valuable/src/lib.rs

@@ -96,6 +96,15 @@
 //! ```
 
 #![cfg_attr(not(feature = "std"), no_std)]
+#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg, doc_cfg_hide))]
+#![cfg_attr(
+    docsrs,
+    doc(cfg_hide(
+        not(valuable_no_atomic_cas),
+        not(valuable_no_atomic),
+        not(valuable_no_atomic_64)
+    ))
+)]
 
 #[cfg(feature = "alloc")]
 extern crate alloc;
@@ -134,4 +143,4 @@ mod visit;
 pub use visit::{visit, Visit};
 
 #[cfg(feature = "derive")]
-pub use valuable_derive::*;
+pub use valuable_derive::Valuable;