pub struct Bounds<'tcx> {
    pub clauses: Vec<(Clause<'tcx>, Span)>,
}
Expand description

Collects together a list of type bounds. These lists of bounds occur in many places in Rust’s syntax:

trait Foo: Bar + Baz { }
           ^^^^^^^^^ supertrait list bounding the `Self` type parameter

fn foo<T: Bar + Baz>() { }
          ^^^^^^^^^ bounding the type parameter `T`

impl dyn Bar + Baz
         ^^^^^^^^^ bounding the type-erased dynamic type

Our representation is a bit mixed here – in some cases, we include the self type (e.g., trait_bounds) but in others we do not

Fields§

§clauses: Vec<(Clause<'tcx>, Span)>

Implementations§

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impl<'tcx> Bounds<'tcx>

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pub fn push_region_bound( &mut self, tcx: TyCtxt<'tcx>, region: PolyTypeOutlivesPredicate<'tcx>, span: Span )

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pub fn push_trait_bound( &mut self, tcx: TyCtxt<'tcx>, trait_ref: PolyTraitRef<'tcx>, span: Span, polarity: ImplPolarity )

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pub fn push_projection_bound( &mut self, tcx: TyCtxt<'tcx>, projection: PolyProjectionPredicate<'tcx>, span: Span )

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pub fn push_sized(&mut self, tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, span: Span)

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pub fn clauses(&self) -> impl Iterator<Item = (Clause<'tcx>, Span)> + '_

Trait Implementations§

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impl<'tcx> Clone for Bounds<'tcx>

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fn clone(&self) -> Bounds<'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 Bounds<'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> Default for Bounds<'tcx>

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fn default() -> Bounds<'tcx>

Returns the “default value” for a type. Read more
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impl<'tcx> PartialEq<Bounds<'tcx>> for Bounds<'tcx>

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fn eq(&self, other: &Bounds<'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> Eq for Bounds<'tcx>

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impl<'tcx> StructuralEq for Bounds<'tcx>

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impl<'tcx> StructuralPartialEq for Bounds<'tcx>

Auto Trait Implementations§

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

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impl<'tcx> !Send for Bounds<'tcx>

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impl<'tcx> !Sync for Bounds<'tcx>

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impl<'tcx> Unpin for Bounds<'tcx>

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impl<'tcx> !UnwindSafe for Bounds<'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: 24 bytes