pub enum MaybeOwner<T> {
    Owner(T),
    NonOwner(HirId),
    Phantom,
}

Variants§

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Owner(T)

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NonOwner(HirId)

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Phantom

Used as a placeholder for unused LocalDefId.

Implementations§

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impl<T> MaybeOwner<T>

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pub fn as_owner(self) -> Option<T>

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pub fn map<U>(self, f: impl FnOnce(T) -> U) -> MaybeOwner<U>

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pub fn unwrap(self) -> T

Trait Implementations§

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impl<T: Clone> Clone for MaybeOwner<T>

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fn clone(&self) -> MaybeOwner<T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug> Debug for MaybeOwner<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T, __CTX> HashStable<__CTX> for MaybeOwner<T>where __CTX: HashStableContext, T: HashStable<__CTX>,

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fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

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impl<T: Copy> Copy for MaybeOwner<T>

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impl<T> RefUnwindSafe for MaybeOwner<T>where T: RefUnwindSafe,

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impl<T> Send for MaybeOwner<T>where T: Send,

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impl<T> Sync for MaybeOwner<T>where T: Sync,

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impl<T> Unpin for MaybeOwner<T>where T: Unpin,

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impl<T> UnwindSafe for MaybeOwner<T>where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,

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fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.