Auto merge of rust-lang#126569 - jieyouxu:rollup-1uvkb2y, r=jieyouxu

Rollup of 8 pull requests

Successful merges:

 - rust-lang#125258 (Resolve elided lifetimes in assoc const to static if no other lifetimes are in scope)
 - rust-lang#126250 (docs(change): Don't mention a Cargo 2024 edition change for 1.79)
 - rust-lang#126288 (doc: Added commas where needed)
 - rust-lang#126346 (export std::os::fd module on HermitOS)
 - rust-lang#126468 (div_euclid, rem_euclid: clarify/extend documentation)
 - rust-lang#126531 (Add codegen test for `Request::provide_*`)
 - rust-lang#126535 (coverage: Arrange span extraction/refinement as a series of passes)
 - rust-lang#126538 (coverage: Several small improvements to graph code)

r? `@ghost`
`@rustbot` modify labels: rollup

core/src/error.rs

@@ -928,7 +928,7 @@ pub(crate) mod tags {
 /// An `Option` with a type tag `I`.
 ///
 /// Since this struct implements `Erased`, the type can be erased to make a dynamically typed
-/// option. The type can be checked dynamically using `Erased::tag_id` and since this is statically
+/// option. The type can be checked dynamically using `Tagged::tag_id` and since this is statically
 /// checked for the concrete type, there is some degree of type safety.
 #[repr(transparent)]
 pub(crate) struct TaggedOption<'a, I: tags::Type<'a>>(pub Option<I::Reified>);

core/src/num/int_macros.rs

@@ -2784,8 +2784,10 @@ macro_rules! int_impl {
         ///
         /// In other words, the result is `self / rhs` rounded to the integer `q`
         /// such that `self >= q * rhs`.
-        /// If `self > 0`, this is equal to round towards zero (the default in Rust);
-        /// if `self < 0`, this is equal to round towards +/- infinity.
+        /// If `self > 0`, this is equal to rounding towards zero (the default in Rust);
+        /// if `self < 0`, this is equal to rounding away from zero (towards +/- infinity).
+        /// If `rhs > 0`, this is equal to rounding towards -infinity;
+        /// if `rhs < 0`, this is equal to rounding towards +infinity.
         ///
         /// # Panics
         ///
@@ -2823,8 +2825,8 @@ macro_rules! int_impl {
         /// Calculates the least nonnegative remainder of `self (mod rhs)`.
         ///
         /// This is done as if by the Euclidean division algorithm -- given
-        /// `r = self.rem_euclid(rhs)`, `self = rhs * self.div_euclid(rhs) + r`, and
-        /// `0 <= r < abs(rhs)`.
+        /// `r = self.rem_euclid(rhs)`, the result satisfies
+        /// `self = rhs * self.div_euclid(rhs) + r` and `0 <= r < abs(rhs)`.
         ///
         /// # Panics
         ///

core/src/ptr/mod.rs

@@ -237,7 +237,7 @@
 //! pointer. For code which *does* cast a usize to a pointer, the scope of the change depends
 //! on exactly what you're doing.
 //!
-//! In general you just need to make sure that if you want to convert a usize address to a
+//! In general, you just need to make sure that if you want to convert a usize address to a
 //! pointer and then use that pointer to read/write memory, you need to keep around a pointer
 //! that has sufficient provenance to perform that read/write itself. In this way all of your
 //! casts from an address to a pointer are essentially just applying offsets/indexing.
@@ -309,7 +309,7 @@
 //!   i.e. the usual "ZSTs are fake, do what you want" rules apply *but* this only applies
 //!   for actual forgery (integers cast to pointers). If you borrow some struct's field
 //!   that *happens* to be zero-sized, the resulting pointer will have provenance tied to
-//!   that allocation and it will still get invalidated if the allocation gets deallocated.
+//!   that allocation, and it will still get invalidated if the allocation gets deallocated.
 //!   In the future we may introduce an API to make such a forged allocation explicit.
 //!
 //! * [`wrapping_offset`][] a pointer outside its provenance. This includes pointers
@@ -698,7 +698,7 @@ pub const fn dangling_mut<T>() -> *mut T {
 ///
 /// If there is no 'exposed' provenance that justifies the way this pointer will be used,
 /// the program has undefined behavior. In particular, the aliasing rules still apply: pointers
-/// and references that have been invalidated due to aliasing accesses cannot be used any more,
+/// and references that have been invalidated due to aliasing accesses cannot be used anymore,
 /// even if they have been exposed!
 ///
 /// Note that there is no algorithm that decides which provenance will be used. You can think of this
@@ -1097,7 +1097,7 @@ const unsafe fn swap_nonoverlapping_simple_untyped<T>(x: *mut T, y: *mut T, coun
         // If we end up here, it's because we're using a simple type -- like
         // a small power-of-two-sized thing -- or a special type with particularly
         // large alignment, particularly SIMD types.
-        // Thus we're fine just reading-and-writing it, as either it's small
+        // Thus, we're fine just reading-and-writing it, as either it's small
         // and that works well anyway or it's special and the type's author
         // presumably wanted things to be done in the larger chunk.
 
@@ -1290,7 +1290,7 @@ pub const unsafe fn read<T>(src: *const T) -> T {
     // provides enough information to know that this is a typed operation.
 
     // However, as of March 2023 the compiler was not capable of taking advantage
-    // of that information.  Thus the implementation here switched to an intrinsic,
+    // of that information. Thus, the implementation here switched to an intrinsic,
     // which lowers to `_0 = *src` in MIR, to address a few issues:
     //
     // - Using `MaybeUninit::assume_init` after a `copy_nonoverlapping` was not
@@ -1570,7 +1570,7 @@ pub const unsafe fn write<T>(dst: *mut T, src: T) {
 /// As a result, using `&packed.unaligned as *const FieldType` causes immediate
 /// *undefined behavior* in your program.
 ///
-/// Instead you must use the [`ptr::addr_of_mut!`](addr_of_mut)
+/// Instead, you must use the [`ptr::addr_of_mut!`](addr_of_mut)
 /// macro to create the pointer. You may use that returned pointer together with
 /// this function.
 ///

std/src/os/hermit/io/mod.rs

@@ -1,13 +1,4 @@
-#![stable(feature = "os_fd", since = "1.66.0")]
+#![stable(feature = "rust1", since = "1.0.0")]
 
-mod net;
-#[path = "../../fd/owned.rs"]
-mod owned;
-#[path = "../../fd/raw.rs"]
-mod raw;
-
-// Export the types and traits for the public API.
-#[stable(feature = "os_fd", since = "1.66.0")]
-pub use owned::*;
-#[stable(feature = "os_fd", since = "1.66.0")]
-pub use raw::*;
+#[stable(feature = "rust1", since = "1.0.0")]
+pub use crate::os::fd::*;

std/src/os/mod.rs

@@ -160,7 +160,7 @@ pub(crate) mod watchos;
 #[cfg(target_os = "xous")]
 pub mod xous;
 
-#[cfg(any(unix, target_os = "wasi", doc))]
+#[cfg(any(unix, target_os = "hermit", target_os = "wasi", doc))]
 pub mod fd;
 
 #[cfg(any(target_os = "linux", target_os = "android", doc))]