pub(crate) struct TyVidEqKey<'tcx> {
    vid: TyVid,
    phantom: PhantomData<TypeVariableValue<'tcx>>,
}
Expand description

These structs (a newtyped TyVid) are used as the unification key for the eq_relations; they carry a TypeVariableValue along with them.

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§vid: TyVid§phantom: PhantomData<TypeVariableValue<'tcx>>

Trait Implementations§

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impl<'tcx> Clone for TyVidEqKey<'tcx>

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fn clone(&self) -> TyVidEqKey<'tcx>

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<'tcx> Debug for TyVidEqKey<'tcx>

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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<'tcx> From<TyVid> for TyVidEqKey<'tcx>

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fn from(vid: TyVid) -> Self

Converts to this type from the input type.
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impl<'tcx> PartialEq<TyVidEqKey<'tcx>> for TyVidEqKey<'tcx>

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fn eq(&self, other: &TyVidEqKey<'tcx>) -> bool

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'tcx> UnifyKey for TyVidEqKey<'tcx>

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type Value = TypeVariableValue<'tcx>

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fn index(&self) -> u32

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fn from_index(i: u32) -> Self

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fn tag() -> &'static str

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fn order_roots( a: Self, a_value: &Self::Value, b: Self, b_value: &Self::Value ) -> Option<(Self, Self)>

You should return first the key that should be used as root, then the other key (that will then point to the new root). Read more
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impl<'tcx> Copy for TyVidEqKey<'tcx>

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impl<'tcx> Eq for TyVidEqKey<'tcx>

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impl<'tcx> StructuralEq for TyVidEqKey<'tcx>

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impl<'tcx> StructuralPartialEq for TyVidEqKey<'tcx>

Auto Trait Implementations§

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impl<'tcx> !RefUnwindSafe for TyVidEqKey<'tcx>

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impl<'tcx> Send for TyVidEqKey<'tcx>

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impl<'tcx> Sync for TyVidEqKey<'tcx>

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impl<'tcx> Unpin for TyVidEqKey<'tcx>

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impl<'tcx> !UnwindSafe for TyVidEqKey<'tcx>

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<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: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes