| Age | Commit message (Collapse) | Author | Lines |
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Not sure why these were there, I guess because this type used
to kind of be part of public API?
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This reverts commit f35517ee861dc012ccc26083dd4520045e2c4f6f.
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Co-Authored-By: Mazdak Farrokhzad <twingoow@gmail.com>
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Fixed outdated reference to `waker` argument; now futures are passed a
`Context`, from which one can obtain a `waker`.
Cleaned up explanation of what happens when you call `poll` on a completed
future. It doesn't make sense to say that `poll` implementations can't cause
memory unsafety; no safe function is ever allowed to cause memory unsafety, so
why mention it here? It seems like the intent is to say that the `Future` trait
doesn't say what the consequences of excess polls will be, and they might be
bad; but that the usual constraints that Rust imposes on any non-`unsafe`
function still apply. It's also oddly specific to say 'memory corruption'
instead of just 'undefined behavior'; UB is a bit jargony, so the text should
provide examples.
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Fix typo in std::future::Future docs
I am not quite sure if this is actually a typo but
1. to me the sentence doesn't make sense if it says "expect"
2. I hope that `Future`s are not really allowed to cause memory unsafety if they are polled after completion.
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Use more impl header lifetime elision
Inspired by seeing explicit lifetimes on these two:
- https://doc.rust-lang.org/nightly/std/slice/struct.Iter.html#impl-FusedIterator
- https://doc.rust-lang.org/nightly/std/primitive.u32.html#impl-Not
And a follow-up to https://github.com/rust-lang/rust/pull/54687, that started using IHLE in libcore.
Most of the changes in here fall into two big categories:
- Removing lifetimes from common traits that can essentially never user a lifetime from an input (particularly `Drop`, `Debug`, and `Clone`)
- Forwarding impls that are only possible because the lifetime doesn't matter (like `impl<R: Read + ?Sized> Read for &mut R`)
I omitted things that seemed like they could be more controversial, like the handful of iterators that have a `Item: 'static` despite the iterator having a lifetime or the `PartialEq` implementations [where the flipped one cannot elide the lifetime](https://internals.rust-lang.org/t/impl-type-parameter-aliases/9403/2?u=scottmcm).
I also removed two lifetimes that turned out to be completely unused; see https://github.com/rust-lang/rust/issues/41960#issuecomment-464557423
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There are two big categories of changes in here
- Removing lifetimes from common traits that can essentially never user a lifetime from an input (particularly `Drop` & `Debug`)
- Forwarding impls that are only possible because the lifetime doesn't matter (like `impl<R: Read + ?Sized> Read for &mut R`)
I omitted things that seemed like they could be more controversial, like the handful of iterators that have a `Item: 'static` despite the iterator having a lifetime or the `PartialEq` implementations where the flipped one cannot elide the lifetime.
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This change updates the future and task API as discussed in the stabilization RFC at https://github.com/rust-lang/rfcs/pull/2592.
Changes:
- Replacing UnsafeWake with RawWaker and RawWakerVtable
- Removal of LocalWaker
- Removal of Arc-based Wake trait
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Remove pin::Unpin reexport and add Unpin to the prelude.
Change Pin associated functions to methods.
Rename get_mut_unchecked_ to get_unchecked_mut
Remove impl Unpin for Pin
Mark Pin repr(transparent)
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