Merging upstream version 1.75.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 58 deletions

diff --git a/library/core/src/iter/sources/from_generator.rs b/library/core/src/iter/sources/from_generator.rs
deleted file mode 100644
index 4cbe731b2..000000000
--- a/library/core/src/iter/sources/from_generator.rs
+++ /dev/null
@@ -1,58 +0,0 @@
-use crate::fmt;
-use crate::ops::{Generator, GeneratorState};
-use crate::pin::Pin;
-
-/// Creates a new iterator where each iteration calls the provided generator.
-///
-/// Similar to [`iter::from_fn`].
-///
-/// [`iter::from_fn`]: crate::iter::from_fn
-///
-/// # Examples
-///
-/// ```
-/// #![feature(generators)]
-/// #![feature(iter_from_generator)]
-///
-/// let it = std::iter::from_generator(|| {
-///     yield 1;
-///     yield 2;
-///     yield 3;
-/// });
-/// let v: Vec<_> = it.collect();
-/// assert_eq!(v, [1, 2, 3]);
-/// ```
-#[inline]
-#[unstable(feature = "iter_from_generator", issue = "43122", reason = "generators are unstable")]
-pub fn from_generator<G: Generator<Return = ()> + Unpin>(generator: G) -> FromGenerator<G> {
-    FromGenerator(generator)
-}
-
-/// An iterator over the values yielded by an underlying generator.
-///
-/// This `struct` is created by the [`iter::from_generator()`] function. See its documentation for
-/// more.
-///
-/// [`iter::from_generator()`]: from_generator
-#[unstable(feature = "iter_from_generator", issue = "43122", reason = "generators are unstable")]
-#[derive(Clone)]
-pub struct FromGenerator<G>(G);
-
-#[unstable(feature = "iter_from_generator", issue = "43122", reason = "generators are unstable")]
-impl<G: Generator<Return = ()> + Unpin> Iterator for FromGenerator<G> {
-    type Item = G::Yield;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        match Pin::new(&mut self.0).resume(()) {
-            GeneratorState::Yielded(n) => Some(n),
-            GeneratorState::Complete(()) => None,
-        }
-    }
-}
-
-#[unstable(feature = "iter_from_generator", issue = "43122", reason = "generators are unstable")]
-impl<G> fmt::Debug for FromGenerator<G> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_struct("FromGenerator").finish()
-    }
-}