Implement RFC 3631

Author: GuillaumeGomez

alloc/src/lib.rs

@@ -64,14 +64,27 @@
     issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/",
     test(no_crate_inject, attr(allow(unused_variables), deny(warnings)))
 )]
-#![doc(cfg_hide(
-    not(test),
-    no_global_oom_handling,
-    not(no_global_oom_handling),
-    not(no_rc),
-    not(no_sync),
-    target_has_atomic = "ptr"
-))]
+#![cfg_attr(
+    bootstrap,
+    doc(cfg_hide(
+        not(test),
+        no_global_oom_handling,
+        not(no_global_oom_handling),
+        not(no_rc),
+        not(no_sync),
+        target_has_atomic = "ptr"
+    ))
+)]
+#![cfg_attr(
+    not(bootstrap),
+    doc(auto_cfg(hide(
+        test,
+        no_global_oom_handling,
+        no_rc,
+        no_sync,
+        target_has_atomic = "ptr"
+    )))
+)]
 #![doc(rust_logo)]
 #![feature(rustdoc_internals)]
 #![no_std]

core/src/lib.rs

@@ -51,27 +51,54 @@
     test(attr(allow(dead_code, deprecated, unused_variables, unused_mut)))
 )]
 #![doc(rust_logo)]
-#![doc(cfg_hide(
-    no_fp_fmt_parse,
-    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",
-))]
+#![cfg_attr(
+    bootstrap,
+    doc(cfg_hide(
+        no_fp_fmt_parse,
+        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",
+    ))
+)]
+#![cfg_attr(
+    not(bootstrap),
+    doc(auto_cfg(hide(
+        no_fp_fmt_parse,
+        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]
 #![rustc_coherence_is_core]
 #![rustc_preserve_ub_checks]

std/src/lib.rs

@@ -235,7 +235,21 @@
     test(attr(allow(dead_code, deprecated, unused_variables, unused_mut)))
 )]
 #![doc(rust_logo)]
-#![doc(cfg_hide(not(test), no_global_oom_handling, not(no_global_oom_handling)))]
+#![cfg_attr(
+    bootstrap,
+    doc(cfg_hide(
+        not(test),
+        no_global_oom_handling,
+        not(no_global_oom_handling)
+    ))
+)]
+#![cfg_attr(
+    not(bootstrap),
+    doc(auto_cfg(hide(
+        test,
+        no_global_oom_handling,
+    )))
+)]
 // Don't link to std. We are std.
 #![no_std]
 // Tell the compiler to link to either panic_abort or panic_unwind