TagEq

index_ext::tag

Struct TagEq 

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pub struct TagEq<TagA, TagB> { /* private fields */ }
Expand description

A proof that two tags refer to equal lengths.

This guarantees that indices of A and B can be used interchangeably.

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impl<A: Tag> TagEq<A, A>

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pub fn reflexive(tag: A) -> Self

Construct the reflexive proof.

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impl<A: Tag, B: Tag> TagEq<A, B>

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pub fn new(lhs: TagLessEq<A, B>, _: TagLessEq<B, A>) -> Self

Create an equality from evidence a <= b <= a.

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pub fn transpose(self) -> TagEq<B, A>

Swap the two tags, a = b iff b = a.

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pub fn into_le(self) -> TagLessEq<A, B>

Relax this into a less or equal relation.

Trait Implementations§

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impl<TagA: Clone, TagB: Clone> Clone for TagEq<TagA, TagB>

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fn clone(&self) -> TagEq<TagA, TagB>

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<TagA: Copy, TagB: Copy> Copy for TagEq<TagA, TagB>

Auto Trait Implementations§

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impl<TagA, TagB> Freeze for TagEq<TagA, TagB>
where TagA: Freeze, TagB: Freeze,

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impl<TagA, TagB> RefUnwindSafe for TagEq<TagA, TagB>
where TagA: RefUnwindSafe, TagB: RefUnwindSafe,

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impl<TagA, TagB> Send for TagEq<TagA, TagB>
where TagA: Send, TagB: Send,

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impl<TagA, TagB> Sync for TagEq<TagA, TagB>
where TagA: Sync, TagB: Sync,

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impl<TagA, TagB> Unpin for TagEq<TagA, TagB>
where TagA: Unpin, TagB: Unpin,

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impl<TagA, TagB> UnwindSafe for TagEq<TagA, TagB>
where TagA: UnwindSafe, TagB: 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.