Enum DictKey 

pub(crate) enum DictKey<'tcx> {
    Ty(Ty<'tcx>, TyQ),
    Region(Region<'tcx>),
    Const(Const<'tcx>),
    Predicate(ExistentialPredicate<'tcx>),
}

Substitution dictionary key.

Variants

Ty(Ty<'tcx>, TyQ)

Region(Region<'tcx>)

Const(Const<'tcx>)

Predicate(ExistentialPredicate<'tcx>)

Trait Implementations

impl<'tcx> Eq for DictKey<'tcx>

impl<'tcx> Hash for DictKey<'tcx>

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'tcx> PartialEq for DictKey<'tcx>

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'tcx> StructuralPartialEq for DictKey<'tcx>

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

Size for each variant:

• Ty: 24 bytes
• Region: 16 bytes
• Const: 16 bytes
• Predicate: 24 bytes