Lifetime

Struct Lifetime 

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pub struct Lifetime<'id> { /* private fields */ }
Expand description

A fully statically checked ID based on invariant lifetimes and HRTBs.

This is the same technique as used by GhostCell. While theoretically the best option (being both safe and zero-cost), its infectious nature makes it not very useful in practice.

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impl Lifetime<'_>

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pub fn scope<O, F>(f: F) -> O
where F: for<'id> FnOnce(Unique<Lifetime<'id>>) -> O,

Create a new lifetime-based ID usable in a specific scope.

Trait Implementations§

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impl<'id> Clone for Lifetime<'id>

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fn clone(&self) -> Lifetime<'id>

Returns a duplicate 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<'id> Debug for Lifetime<'id>

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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<'id> PartialEq for Lifetime<'id>

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fn eq(&self, other: &Lifetime<'id>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'id> Copy for Lifetime<'id>

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impl<'id> Eq for Lifetime<'id>

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impl Id for Lifetime<'_>

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impl<'id> StructuralPartialEq for Lifetime<'id>

Auto Trait Implementations§

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impl<'id> Freeze for Lifetime<'id>

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impl<'id> RefUnwindSafe for Lifetime<'id>

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impl<'id> Send for Lifetime<'id>

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impl<'id> Sync for Lifetime<'id>

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impl<'id> Unpin for Lifetime<'id>

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impl<'id> UnwindSafe for Lifetime<'id>

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, 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.