Struct chalk_ir::UCanonical

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pub struct UCanonical<T: HasInterner> {
    pub canonical: Canonical<T>,
    pub universes: usize,
}
Expand description

A “universe canonical” value. This is a wrapper around a Canonical, indicating that the universes within have been “renumbered” to start from 0 and collapse unimportant distinctions.

To produce one of these values, use the u_canonicalize method.

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§canonical: Canonical<T>

The wrapped Canonical.

§universes: usize

The number of universes that have been collapsed.

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impl<T: HasInterner> UCanonical<T>

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pub fn is_trivial_substitution( &self, interner: T::Interner, canonical_subst: &Canonical<AnswerSubst<T::Interner>> ) -> bool

Checks whether the universe canonical value is a trivial substitution (e.g. an identity substitution).

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pub fn trivial_substitution( &self, interner: T::Interner ) -> Substitution<T::Interner>

Creates an identity substitution.

Trait Implementations§

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impl<T: Clone + HasInterner> Clone for UCanonical<T>

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fn clone(&self) -> UCanonical<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 + HasInterner> Debug for UCanonical<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: Hash + HasInterner> Hash for UCanonical<T>

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T: PartialEq + HasInterner> PartialEq for UCanonical<T>

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fn eq(&self, other: &UCanonical<T>) -> 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<T: Eq + HasInterner> Eq for UCanonical<T>

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impl<T: HasInterner> StructuralEq for UCanonical<T>

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impl<T: HasInterner> StructuralPartialEq for UCanonical<T>

Auto Trait Implementations§

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> Cast for T

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fn cast<U>(self, interner: U::Interner) -> Uwhere Self: CastTo<U>, U: HasInterner,

Cast a value to type U using CastTo.
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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.