From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 library/core/src/cell/lazy.rs |  8 +++++---
 library/core/src/cell/once.rs | 13 ++++++++++++-
 2 files changed, 17 insertions(+), 4 deletions(-)

(limited to 'library/core/src/cell')

diff --git a/library/core/src/cell/lazy.rs b/library/core/src/cell/lazy.rs
index b355d94ce..65d12c25c 100644
--- a/library/core/src/cell/lazy.rs
+++ b/library/core/src/cell/lazy.rs
@@ -35,7 +35,7 @@ pub struct LazyCell<T, F = fn() -> T> {
     init: Cell<Option<F>>,
 }
 
-impl<T, F> LazyCell<T, F> {
+impl<T, F: FnOnce() -> T> LazyCell<T, F> {
     /// Creates a new lazy value with the given initializing function.
     ///
     /// # Examples
@@ -51,13 +51,12 @@ impl<T, F> LazyCell<T, F> {
     ///
     /// assert_eq!(&*lazy, "HELLO, WORLD!");
     /// ```
+    #[inline]
     #[unstable(feature = "once_cell", issue = "74465")]
     pub const fn new(init: F) -> LazyCell<T, F> {
         LazyCell { cell: OnceCell::new(), init: Cell::new(Some(init)) }
     }
-}
 
-impl<T, F: FnOnce() -> T> LazyCell<T, F> {
     /// Forces the evaluation of this lazy value and returns a reference to
     /// the result.
     ///
@@ -75,6 +74,7 @@ impl<T, F: FnOnce() -> T> LazyCell<T, F> {
     /// assert_eq!(LazyCell::force(&lazy), &92);
     /// assert_eq!(&*lazy, &92);
     /// ```
+    #[inline]
     #[unstable(feature = "once_cell", issue = "74465")]
     pub fn force(this: &LazyCell<T, F>) -> &T {
         this.cell.get_or_init(|| match this.init.take() {
@@ -87,6 +87,7 @@ impl<T, F: FnOnce() -> T> LazyCell<T, F> {
 #[unstable(feature = "once_cell", issue = "74465")]
 impl<T, F: FnOnce() -> T> Deref for LazyCell<T, F> {
     type Target = T;
+    #[inline]
     fn deref(&self) -> &T {
         LazyCell::force(self)
     }
@@ -95,6 +96,7 @@ impl<T, F: FnOnce() -> T> Deref for LazyCell<T, F> {
 #[unstable(feature = "once_cell", issue = "74465")]
 impl<T: Default> Default for LazyCell<T> {
     /// Creates a new lazy value using `Default` as the initializing function.
+    #[inline]
     fn default() -> LazyCell<T> {
         LazyCell::new(T::default)
     }
diff --git a/library/core/src/cell/once.rs b/library/core/src/cell/once.rs
index 8c01643c7..7757068a4 100644
--- a/library/core/src/cell/once.rs
+++ b/library/core/src/cell/once.rs
@@ -37,8 +37,9 @@ pub struct OnceCell<T> {
 
 impl<T> OnceCell<T> {
     /// Creates a new empty cell.
-    #[unstable(feature = "once_cell", issue = "74465")]
+    #[inline]
     #[must_use]
+    #[unstable(feature = "once_cell", issue = "74465")]
     pub const fn new() -> OnceCell<T> {
         OnceCell { inner: UnsafeCell::new(None) }
     }
@@ -46,6 +47,7 @@ impl<T> OnceCell<T> {
     /// Gets the reference to the underlying value.
     ///
     /// Returns `None` if the cell is empty.
+    #[inline]
     #[unstable(feature = "once_cell", issue = "74465")]
     pub fn get(&self) -> Option<&T> {
         // SAFETY: Safe due to `inner`'s invariant
@@ -55,6 +57,7 @@ impl<T> OnceCell<T> {
     /// Gets the mutable reference to the underlying value.
     ///
     /// Returns `None` if the cell is empty.
+    #[inline]
     #[unstable(feature = "once_cell", issue = "74465")]
     pub fn get_mut(&mut self) -> Option<&mut T> {
         self.inner.get_mut().as_mut()
@@ -82,6 +85,7 @@ impl<T> OnceCell<T> {
     ///
     /// assert!(cell.get().is_some());
     /// ```
+    #[inline]
     #[unstable(feature = "once_cell", issue = "74465")]
     pub fn set(&self, value: T) -> Result<(), T> {
         // SAFETY: Safe because we cannot have overlapping mutable borrows
@@ -123,6 +127,7 @@ impl<T> OnceCell<T> {
     /// let value = cell.get_or_init(|| unreachable!());
     /// assert_eq!(value, &92);
     /// ```
+    #[inline]
     #[unstable(feature = "once_cell", issue = "74465")]
     pub fn get_or_init<F>(&self, f: F) -> &T
     where
@@ -205,6 +210,7 @@ impl<T> OnceCell<T> {
     /// cell.set("hello".to_string()).unwrap();
     /// assert_eq!(cell.into_inner(), Some("hello".to_string()));
     /// ```
+    #[inline]
     #[unstable(feature = "once_cell", issue = "74465")]
     pub fn into_inner(self) -> Option<T> {
         // Because `into_inner` takes `self` by value, the compiler statically verifies
@@ -233,6 +239,7 @@ impl<T> OnceCell<T> {
     /// assert_eq!(cell.take(), Some("hello".to_string()));
     /// assert_eq!(cell.get(), None);
     /// ```
+    #[inline]
     #[unstable(feature = "once_cell", issue = "74465")]
     pub fn take(&mut self) -> Option<T> {
         mem::take(self).into_inner()
@@ -241,6 +248,7 @@ impl<T> OnceCell<T> {
 
 #[unstable(feature = "once_cell", issue = "74465")]
 impl<T> Default for OnceCell<T> {
+    #[inline]
     fn default() -> Self {
         Self::new()
     }
@@ -258,6 +266,7 @@ impl<T: fmt::Debug> fmt::Debug for OnceCell<T> {
 
 #[unstable(feature = "once_cell", issue = "74465")]
 impl<T: Clone> Clone for OnceCell<T> {
+    #[inline]
     fn clone(&self) -> OnceCell<T> {
         let res = OnceCell::new();
         if let Some(value) = self.get() {
@@ -272,6 +281,7 @@ impl<T: Clone> Clone for OnceCell<T> {
 
 #[unstable(feature = "once_cell", issue = "74465")]
 impl<T: PartialEq> PartialEq for OnceCell<T> {
+    #[inline]
     fn eq(&self, other: &Self) -> bool {
         self.get() == other.get()
     }
@@ -283,6 +293,7 @@ impl<T: Eq> Eq for OnceCell<T> {}
 #[unstable(feature = "once_cell", issue = "74465")]
 impl<T> const From<T> for OnceCell<T> {
     /// Creates a new `OnceCell<T>` which already contains the given `value`.
+    #[inline]
     fn from(value: T) -> Self {
         OnceCell { inner: UnsafeCell::new(Some(value)) }
     }
-- 
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