Added diagnostic items to functions for Clippy

[rust.git] / library / core / src / mem / mod.rs

diff --git a/library/core/src/mem/mod.rs b/library/core/src/mem/mod.rs
index c6750c52d16c8616508247fc0a5f14cd2f9eb5ce..2c75de39ffa2fc3644cdf479786903e046788f7a 100644 (file)
--- a/library/core/src/mem/mod.rs
+++ b/library/core/src/mem/mod.rs
@@ -140,6 +140,7 @@
 #[inline]
 #[rustc_const_stable(feature = "const_forget", since = "1.46.0")]
 #[stable(feature = "rust1", since = "1.0.0")]
+#[cfg_attr(not(test), rustc_diagnostic_item = "mem_forget")]
 pub const fn forget<T>(t: T) {
     let _ = ManuallyDrop::new(t);
 }
@@ -298,6 +299,7 @@ pub fn forget_unsized<T: ?Sized>(t: T) {
 #[stable(feature = "rust1", since = "1.0.0")]
 #[rustc_promotable]
 #[rustc_const_stable(feature = "const_size_of", since = "1.24.0")]
+#[cfg_attr(not(test), rustc_diagnostic_item = "mem_size_of")]
 pub const fn size_of<T>() -> usize {
     intrinsics::size_of::<T>()
 }
@@ -324,6 +326,7 @@ pub const fn size_of<T>() -> usize {
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[rustc_const_unstable(feature = "const_size_of_val", issue = "46571")]
+#[cfg_attr(not(test), rustc_diagnostic_item = "mem_size_of_val")]
 pub const fn size_of_val<T: ?Sized>(val: &T) -> usize {
     // SAFETY: `val` is a reference, so it's a valid raw pointer
     unsafe { intrinsics::size_of_val(val) }
@@ -682,7 +685,8 @@ pub unsafe fn uninitialized<T>() -> T {
 /// ```
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
-pub fn swap<T>(x: &mut T, y: &mut T) {
+#[rustc_const_unstable(feature = "const_swap", issue = "83163")]
+pub const fn swap<T>(x: &mut T, y: &mut T) {
     // SAFETY: the raw pointers have been created from safe mutable references satisfying all the
     // constraints on `ptr::swap_nonoverlapping_one`
     unsafe {
@@ -812,7 +816,9 @@ pub fn take<T: Default>(dest: &mut T) -> T {
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[must_use = "if you don't need the old value, you can just assign the new value directly"]
-pub fn replace<T>(dest: &mut T, src: T) -> T {
+#[rustc_const_unstable(feature = "const_replace", issue = "83164")]
+#[cfg_attr(not(test), rustc_diagnostic_item = "mem_replace")]
+pub const fn replace<T>(dest: &mut T, src: T) -> T {
     // SAFETY: We read from `dest` but directly write `src` into it afterwards,
     // such that the old value is not duplicated. Nothing is dropped and
     // nothing here can panic.
@@ -886,6 +892,7 @@ pub fn replace<T>(dest: &mut T, src: T) -> T {
 /// [`RefCell`]: crate::cell::RefCell
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
+#[cfg_attr(not(test), rustc_diagnostic_item = "mem_drop")]
 pub fn drop<T>(_x: T) {}
 
 /// Interprets `src` as having type `&U`, and then reads `src` without moving
@@ -1013,6 +1020,7 @@ fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
 /// ```
 #[stable(feature = "discriminant_value", since = "1.21.0")]
 #[rustc_const_unstable(feature = "const_discriminant", issue = "69821")]
+#[cfg_attr(not(test), rustc_diagnostic_item = "mem_discriminant")]
 pub const fn discriminant<T>(v: &T) -> Discriminant<T> {
     Discriminant(intrinsics::discriminant_value(v))
 }