pub enum WherePredicate<'hir> {
    BoundPredicate(WhereBoundPredicate<'hir>),
    RegionPredicate(WhereRegionPredicate<'hir>),
    EqPredicate(WhereEqPredicate<'hir>),
}
Expand description

A single predicate in a where-clause.

Variants§

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BoundPredicate(WhereBoundPredicate<'hir>)

A type binding (e.g., for<'c> Foo: Send + Clone + 'c).

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RegionPredicate(WhereRegionPredicate<'hir>)

A lifetime predicate (e.g., 'a: 'b + 'c).

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EqPredicate(WhereEqPredicate<'hir>)

An equality predicate (unsupported).

Implementations§

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impl<'hir> WherePredicate<'hir>

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pub fn span(&self) -> Span

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pub fn in_where_clause(&self) -> bool

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pub fn bounds(&self) -> GenericBounds<'hir>

Trait Implementations§

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impl<'hir> Clone for WherePredicate<'hir>

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fn clone(&self) -> WherePredicate<'hir>

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<'hir> Debug for WherePredicate<'hir>

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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<'hir, __CTX> HashStable<__CTX> for WherePredicate<'hir>
where __CTX: HashStableContext,

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fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

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impl<'hir> Copy for WherePredicate<'hir>

Auto Trait Implementations§

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impl<'hir> RefUnwindSafe for WherePredicate<'hir>

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impl<'hir> !Send for WherePredicate<'hir>

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impl<'hir> !Sync for WherePredicate<'hir>

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impl<'hir> Unpin for WherePredicate<'hir>

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impl<'hir> UnwindSafe for WherePredicate<'hir>

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<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

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fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

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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> 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.

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: 64 bytes

Size for each variant:

  • BoundPredicate: 64 bytes
  • RegionPredicate: 48 bytes
  • EqPredicate: 32 bytes