generic_mutability

Struct IsMutable

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pub struct IsMutable<M: Mutability>(/* private fields */);
Expand description

The existence of a value of this type guarantees that a specific mutability parameter M is Mutable. Unsafe code may rely on this guarantee. You can obtain this value by matching over M::mutability().

The most notable API that requires this is GenRef::gen_{into,from}_mut.

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impl<M: Clone + Mutability> Clone for IsMutable<M>

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fn clone(&self) -> IsMutable<M>

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<M: Copy + Mutability> Copy for IsMutable<M>

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impl<M> Freeze for IsMutable<M>

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impl<M> RefUnwindSafe for IsMutable<M>
where M: RefUnwindSafe,

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impl<M> Send for IsMutable<M>
where M: Send,

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impl<M> Sync for IsMutable<M>
where M: Sync,

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impl<M> Unpin for IsMutable<M>
where M: Unpin,

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impl<M> UnwindSafe for IsMutable<M>
where M: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where 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 T
where 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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 T
where 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 T
where 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 T
where 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 T
where 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.