Suppress some cfg from being shown in the stdlib docs

Author: Nemo157

library/alloc/src/lib.rs

@@ -62,7 +62,10 @@
     html_root_url = "https://doc.rust-lang.org/nightly/",
     html_playground_url = "https://play.rust-lang.org/",
     issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/",
-    test(no_crate_inject, attr(allow(unused_variables), deny(warnings)))
+    test(no_crate_inject, attr(allow(unused_variables), deny(warnings))),
+)]
+#![cfg_attr(not(bootstrap),
+    doc(cfg_hide(not(test), not(any(test, bootstrap)), target_has_atomic = "ptr"))
 )]
 #![no_std]
 #![needs_allocator]
@@ -146,6 +149,8 @@
 #![feature(associated_type_bounds)]
 #![feature(slice_group_by)]
 #![feature(decl_macro)]
+#![feature(doc_cfg)]
+#![cfg_attr(not(bootstrap), feature(doc_cfg_hide))]
 // Allow testing this library
 
 #[cfg(test)]

library/core/src/lib.rs

@@ -55,7 +55,30 @@
     html_playground_url = "https://play.rust-lang.org/",
     issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/",
     test(no_crate_inject, attr(deny(warnings))),
-    test(attr(allow(dead_code, deprecated, unused_variables, unused_mut)))
+    test(attr(allow(dead_code, deprecated, unused_variables, unused_mut))),
+)]
+#![cfg_attr(not(bootstrap),
+    doc(cfg_hide(
+        not(test),
+        target_pointer_width = "16",
+        target_pointer_width = "32",
+        target_pointer_width = "64",
+        target_has_atomic = "8",
+        target_has_atomic = "16",
+        target_has_atomic = "32",
+        target_has_atomic = "64",
+        target_has_atomic = "ptr",
+        target_has_atomic_equal_alignment = "8",
+        target_has_atomic_equal_alignment = "16",
+        target_has_atomic_equal_alignment = "32",
+        target_has_atomic_equal_alignment = "64",
+        target_has_atomic_equal_alignment = "ptr",
+        target_has_atomic_load_store = "8",
+        target_has_atomic_load_store = "16",
+        target_has_atomic_load_store = "32",
+        target_has_atomic_load_store = "64",
+        target_has_atomic_load_store = "ptr",
+    ))
 )]
 #![no_core]
 #![warn(deprecated_in_future)]
@@ -109,6 +132,7 @@
 #![feature(custom_inner_attributes)]
 #![feature(decl_macro)]
 #![feature(doc_cfg)]
+#![cfg_attr(not(bootstrap), feature(doc_cfg_hide))]
 #![cfg_attr(bootstrap, feature(doc_spotlight))]
 #![cfg_attr(not(bootstrap), feature(doc_notable_trait))]
 #![feature(duration_consts_2)]

library/std/src/lib.rs

@@ -194,7 +194,10 @@
     html_playground_url = "https://play.rust-lang.org/",
     issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/",
     test(no_crate_inject, attr(deny(warnings))),
-    test(attr(allow(dead_code, deprecated, unused_variables, unused_mut)))
+    test(attr(allow(dead_code, deprecated, unused_variables, unused_mut))),
+)]
+#![cfg_attr(not(bootstrap),
+    doc(cfg_hide(not(test), not(any(test, bootstrap))))
 )]
 // Don't link to std. We are std.
 #![no_std]
@@ -259,6 +262,7 @@
 #![feature(custom_test_frameworks)]
 #![feature(decl_macro)]
 #![feature(doc_cfg)]
+#![cfg_attr(not(bootstrap), feature(doc_cfg_hide))]
 #![feature(doc_keyword)]
 #![feature(doc_masked)]
 #![cfg_attr(bootstrap, feature(doc_spotlight))]

library/std/src/os/raw/mod.rs

@@ -46,6 +46,7 @@ macro_rules! type_alias {
 }
 
 type_alias! { "char.md", c_char = u8, NonZero_c_char = NonZeroU8;
+#[doc(cfg(all()))]
 #[cfg(any(
     all(
         target_os = "linux",
@@ -88,6 +89,7 @@ type_alias! { "char.md", c_char = u8, NonZero_c_char = NonZeroU8;
     all(target_os = "fuchsia", target_arch = "aarch64")
 ))]}
 type_alias! { "char.md", c_char = i8, NonZero_c_char = NonZeroI8;
+#[doc(cfg(all()))]
 #[cfg(not(any(
     all(
         target_os = "linux",
@@ -136,12 +138,16 @@ type_alias! { "ushort.md", c_ushort = u16, NonZero_c_ushort = NonZeroU16; }
 type_alias! { "int.md", c_int = i32, NonZero_c_int = NonZeroI32; }
 type_alias! { "uint.md", c_uint = u32, NonZero_c_uint = NonZeroU32; }
 type_alias! { "long.md", c_long = i32, NonZero_c_long = NonZeroI32;
+#[doc(cfg(all()))]
 #[cfg(any(target_pointer_width = "32", windows))] }
 type_alias! { "ulong.md", c_ulong = u32, NonZero_c_ulong = NonZeroU32;
+#[doc(cfg(all()))]
 #[cfg(any(target_pointer_width = "32", windows))] }
 type_alias! { "long.md", c_long = i64, NonZero_c_long = NonZeroI64;
+#[doc(cfg(all()))]
 #[cfg(all(target_pointer_width = "64", not(windows)))] }
 type_alias! { "ulong.md", c_ulong = u64, NonZero_c_ulong = NonZeroU64;
+#[doc(cfg(all()))]
 #[cfg(all(target_pointer_width = "64", not(windows)))] }
 type_alias! { "longlong.md", c_longlong = i64, NonZero_c_longlong = NonZeroI64; }
 type_alias! { "ulonglong.md", c_ulonglong = u64, NonZero_c_ulonglong = NonZeroU64; }

library/std/src/sys/windows/ext/raw.rs

@@ -7,8 +7,10 @@ use crate::os::raw::c_void;
 #[stable(feature = "raw_ext", since = "1.1.0")]
 pub type HANDLE = *mut c_void;
 #[cfg(target_pointer_width = "32")]
+#[doc(cfg(all()))]
 #[stable(feature = "raw_ext", since = "1.1.0")]
 pub type SOCKET = u32;
 #[cfg(target_pointer_width = "64")]
+#[doc(cfg(all()))]
 #[stable(feature = "raw_ext", since = "1.1.0")]
 pub type SOCKET = u64;