s/Generator/Coroutine/

library/core/src/future/mod.rs

@@ -38,7 +38,7 @@ pub use poll_fn::{poll_fn, PollFn};
 
 /// This type is needed because:
 ///
-/// a) Generators cannot implement `for<'a, 'b> Generator<&'a mut Context<'b>>`, so we need to pass
+/// a) Coroutines cannot implement `for<'a, 'b> Coroutine<&'a mut Context<'b>>`, so we need to pass
 ///    a raw pointer (see <https://github.com/rust-lang/rust/issues/68923>).
 /// b) Raw pointers and `NonNull` aren't `Send` or `Sync`, so that would make every single future
 ///    non-Send/Sync as well, and we don't want that.

library/core/src/iter/sources/from_generator.rs

@@ -1,5 +1,5 @@
 use crate::fmt;
-use crate::ops::{Generator, GeneratorState};
+use crate::ops::{Coroutine, CoroutineState};
 use crate::pin::Pin;
 
 /// Creates a new iterator where each iteration calls the provided generator.
@@ -24,8 +24,8 @@ use crate::pin::Pin;
 /// ```
 #[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)
+pub fn from_generator<G: Coroutine<Return = ()> + Unpin>(generator: G) -> FromCoroutine<G> {
+    FromCoroutine(generator)
 }
 
 /// An iterator over the values yielded by an underlying generator.
@@ -36,23 +36,23 @@ pub fn from_generator<G: Generator<Return = ()> + Unpin>(generator: G) -> FromGe
 /// [`iter::from_generator()`]: from_generator
 #[unstable(feature = "iter_from_generator", issue = "43122", reason = "generators are unstable")]
 #[derive(Clone)]
-pub struct FromGenerator<G>(G);
+pub struct FromCoroutine<G>(G);
 
 #[unstable(feature = "iter_from_generator", issue = "43122", reason = "generators are unstable")]
-impl<G: Generator<Return = ()> + Unpin> Iterator for FromGenerator<G> {
+impl<G: Coroutine<Return = ()> + Unpin> Iterator for FromCoroutine<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,
+            CoroutineState::Yielded(n) => Some(n),
+            CoroutineState::Complete(()) => None,
         }
     }
 }
 
 #[unstable(feature = "iter_from_generator", issue = "43122", reason = "generators are unstable")]
-impl<G> fmt::Debug for FromGenerator<G> {
+impl<G> fmt::Debug for FromCoroutine<G> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_struct("FromGenerator").finish()
+        f.debug_struct("FromCoroutine").finish()
     }
 }

library/core/src/ops/generator.rs

@@ -3,13 +3,13 @@ use crate::pin::Pin;
 
 /// The result of a generator resumption.
 ///
-/// This enum is returned from the `Generator::resume` method and indicates the
+/// This enum is returned from the `Coroutine::resume` method and indicates the
 /// possible return values of a generator. Currently this corresponds to either
 /// a suspension point (`Yielded`) or a termination point (`Complete`).
 #[derive(Clone, Copy, PartialEq, PartialOrd, Eq, Ord, Debug, Hash)]
 #[lang = "generator_state"]
 #[unstable(feature = "generator_trait", issue = "43122")]
-pub enum GeneratorState<Y, R> {
+pub enum CoroutineState<Y, R> {
     /// The generator suspended with a value.
     ///
     /// This state indicates that a generator has been suspended, and typically
@@ -28,7 +28,7 @@ pub enum GeneratorState<Y, R> {
 
 /// The trait implemented by builtin generator types.
 ///
-/// Generators, also commonly referred to as coroutines, are currently an
+/// Coroutines, also commonly referred to as coroutines, are currently an
 /// experimental language feature in Rust. Added in [RFC 2033] generators are
 /// currently intended to primarily provide a building block for async/await
 /// syntax but will likely extend to also providing an ergonomic definition for
@@ -41,7 +41,7 @@ pub enum GeneratorState<Y, R> {
 /// ```rust
 /// #![feature(generators, generator_trait)]
 ///
-/// use std::ops::{Generator, GeneratorState};
+/// use std::ops::{Coroutine, CoroutineState};
 /// use std::pin::Pin;
 ///
 /// fn main() {
@@ -51,11 +51,11 @@ pub enum GeneratorState<Y, R> {
 ///     };
 ///
 ///     match Pin::new(&mut generator).resume(()) {
-///         GeneratorState::Yielded(1) => {}
+///         CoroutineState::Yielded(1) => {}
 ///         _ => panic!("unexpected return from resume"),
 ///     }
 ///     match Pin::new(&mut generator).resume(()) {
-///         GeneratorState::Complete("foo") => {}
+///         CoroutineState::Complete("foo") => {}
 ///         _ => panic!("unexpected return from resume"),
 ///     }
 /// }
@@ -68,7 +68,7 @@ pub enum GeneratorState<Y, R> {
 #[lang = "generator"]
 #[unstable(feature = "generator_trait", issue = "43122")]
 #[fundamental]
-pub trait Generator<R = ()> {
+pub trait Coroutine<R = ()> {
     /// The type of value this generator yields.
     ///
     /// This associated type corresponds to the `yield` expression and the
@@ -95,10 +95,10 @@ pub trait Generator<R = ()> {
     ///
     /// # Return value
     ///
-    /// The `GeneratorState` enum returned from this function indicates what
+    /// The `CoroutineState` enum returned from this function indicates what
     /// state the generator is in upon returning. If the `Yielded` variant is
     /// returned then the generator has reached a suspension point and a value
-    /// has been yielded out. Generators in this state are available for
+    /// has been yielded out. Coroutines in this state are available for
     /// resumption at a later point.
     ///
     /// If `Complete` is returned then the generator has completely finished
@@ -110,26 +110,26 @@ pub trait Generator<R = ()> {
     /// This function may panic if it is called after the `Complete` variant has
     /// been returned previously. While generator literals in the language are
     /// guaranteed to panic on resuming after `Complete`, this is not guaranteed
-    /// for all implementations of the `Generator` trait.
-    fn resume(self: Pin<&mut Self>, arg: R) -> GeneratorState<Self::Yield, Self::Return>;
+    /// for all implementations of the `Coroutine` trait.
+    fn resume(self: Pin<&mut Self>, arg: R) -> CoroutineState<Self::Yield, Self::Return>;
 }
 
 #[unstable(feature = "generator_trait", issue = "43122")]
-impl<G: ?Sized + Generator<R>, R> Generator<R> for Pin<&mut G> {
+impl<G: ?Sized + Coroutine<R>, R> Coroutine<R> for Pin<&mut G> {
     type Yield = G::Yield;
     type Return = G::Return;
 
-    fn resume(mut self: Pin<&mut Self>, arg: R) -> GeneratorState<Self::Yield, Self::Return> {
+    fn resume(mut self: Pin<&mut Self>, arg: R) -> CoroutineState<Self::Yield, Self::Return> {
         G::resume((*self).as_mut(), arg)
     }
 }
 
 #[unstable(feature = "generator_trait", issue = "43122")]
-impl<G: ?Sized + Generator<R> + Unpin, R> Generator<R> for &mut G {
+impl<G: ?Sized + Coroutine<R> + Unpin, R> Coroutine<R> for &mut G {
     type Yield = G::Yield;
     type Return = G::Return;
 
-    fn resume(mut self: Pin<&mut Self>, arg: R) -> GeneratorState<Self::Yield, Self::Return> {
+    fn resume(mut self: Pin<&mut Self>, arg: R) -> CoroutineState<Self::Yield, Self::Return> {
         G::resume(Pin::new(&mut *self), arg)
     }
 }

library/core/src/ops/mod.rs

@@ -199,7 +199,7 @@ pub use self::try_trait::Residual;
 pub(crate) use self::try_trait::{ChangeOutputType, NeverShortCircuit};
 
 #[unstable(feature = "generator_trait", issue = "43122")]
-pub use self::generator::{Generator, GeneratorState};
+pub use self::generator::{Coroutine, CoroutineState};
 
 #[unstable(feature = "coerce_unsized", issue = "18598")]
 pub use self::unsize::CoerceUnsized;

library/core/src/pin.rs

@@ -1085,16 +1085,16 @@ impl<P, U> DispatchFromDyn<Pin<U>> for Pin<P> where P: DispatchFromDyn<U> {}
 /// # assert_eq!(42, block_on(async { 42 }));
 /// ```
 ///
-/// ### With `Generator`s
+/// ### With `Coroutine`s
 ///
 /// ```rust
 /// #![feature(generators, generator_trait)]
 /// use core::{
-///     ops::{Generator, GeneratorState},
+///     ops::{Coroutine, CoroutineState},
 ///     pin::pin,
 /// };
 ///
-/// fn generator_fn() -> impl Generator<Yield = usize, Return = ()> /* not Unpin */ {
+/// fn generator_fn() -> impl Coroutine<Yield = usize, Return = ()> /* not Unpin */ {
 ///  // Allow generator to be self-referential (not `Unpin`)
 ///  // vvvvvv        so that locals can cross yield points.
 ///     static || {
@@ -1109,16 +1109,16 @@ impl<P, U> DispatchFromDyn<Pin<U>> for Pin<P> where P: DispatchFromDyn<U> {}
 /// fn main() {
 ///     let mut generator = pin!(generator_fn());
 ///     match generator.as_mut().resume(()) {
-///         GeneratorState::Yielded(0) => {},
+///         CoroutineState::Yielded(0) => {},
 ///         _ => unreachable!(),
 ///     }
 ///     match generator.as_mut().resume(()) {
-///         GeneratorState::Yielded(3) => {},
+///         CoroutineState::Yielded(3) => {},
 ///         _ => unreachable!(),
 ///     }
 ///     match generator.resume(()) {
-///         GeneratorState::Yielded(_) => unreachable!(),
-///         GeneratorState::Complete(()) => {},
+///         CoroutineState::Yielded(_) => unreachable!(),
+///         CoroutineState::Complete(()) => {},
 ///     }
 /// }
 /// ```

library/core/src/sync/exclusive.rs

@@ -3,7 +3,7 @@
 use core::fmt;
 use core::future::Future;
 use core::marker::Tuple;
-use core::ops::{Generator, GeneratorState};
+use core::ops::{Coroutine, CoroutineState};
 use core::pin::Pin;
 use core::task::{Context, Poll};
 
@@ -207,15 +207,15 @@ where
 }
 
 #[unstable(feature = "generator_trait", issue = "43122")] // also #98407
-impl<R, G> Generator<R> for Exclusive<G>
+impl<R, G> Coroutine<R> for Exclusive<G>
 where
-    G: Generator<R> + ?Sized,
+    G: Coroutine<R> + ?Sized,
 {
     type Yield = G::Yield;
     type Return = G::Return;
 
     #[inline]
-    fn resume(self: Pin<&mut Self>, arg: R) -> GeneratorState<Self::Yield, Self::Return> {
+    fn resume(self: Pin<&mut Self>, arg: R) -> CoroutineState<Self::Yield, Self::Return> {
         G::resume(self.get_pin_mut(), arg)
     }
 }