Stabilization for owned (now boxed) and cell
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| /// Returns the boxed value if it is of type `T`, or | ||
| /// `Err(Self)` if it isn't. | ||
| fn move<T: 'static>(self) -> Result<Box<T>, Self>; | ||
| fn downcast<T: 'static>(self) -> Result<Box<T>, Self>; |
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Could you leave the move method as a #[deprecated] default method for now?
|
r=me with just a few nits |
This PR is the outcome of the library stabilization meeting for the `liballoc::owned` and `libcore::cell` modules. Aside from the stability attributes, there are a few breaking changes: * The `owned` modules is now named `boxed`, to better represent its contents. (`box` was unavailable, since it's a keyword.) This will help avoid the misconception that `Box` plays a special role wrt ownership. * The `AnyOwnExt` extension trait is renamed to `BoxAny`, and its `move` method is renamed to `downcast`, in both cases to improve clarity. * The recently-added `AnySendOwnExt` extension trait is removed; it was not being used and is unnecessary. [breaking-change]
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This PR is the outcome of the library stabilization meeting for the `liballoc::owned` and `libcore::cell` modules. Aside from the stability attributes, there are a few breaking changes: * The `owned` modules is now named `boxed`, to better represent its contents. (`box` was unavailable, since it's a keyword.) This will help avoid the misconception that `Box` plays a special role wrt ownership. * The `AnyOwnExt` extension trait is renamed to `BoxAny`, and its `move` method is renamed to `downcast`, in both cases to improve clarity. * The recently-added `AnySendOwnExt` extension trait is removed; it was not being used and is unnecessary. [breaking-change]
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This PR is the outcome of the library stabilization meeting for the
liballoc::ownedandlibcore::cellmodules.Aside from the stability attributes, there are a few breaking changes:
ownedmodules is now namedboxed, to better represent itscontents. (
boxwas unavailable, since it's a keyword.) This willhelp avoid the misconception that
Boxplays a special role wrtownership.
AnyOwnExtextension trait is renamed toBoxAny, and itsmovemethod is renamed to
downcast, in both cases to improve clarity.AnySendOwnExtextension trait is removed; it wasnot being used and is unnecessary.
[breaking-change]