Struct rustc_middle::infer::unify_key::RegionVidKey

pub struct RegionVidKey<'tcx> {
    pub vid: RegionVid,
    pub phantom: PhantomData<UnifiedRegion<'tcx>>,
}

Fields

vid: RegionVid

phantom: PhantomData<UnifiedRegion<'tcx>>

Trait Implementations

impl<'tcx> Clone for RegionVidKey<'tcx>

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

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'tcx> Debug for RegionVidKey<'tcx>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'tcx> From<RegionVid> for RegionVidKey<'tcx>

fn from(vid: RegionVid) -> Self

Performs the conversion.

impl<'tcx> PartialEq<RegionVidKey<'tcx>> for RegionVidKey<'tcx>

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &RegionVidKey<'tcx>) -> bool

This method tests for !=.

impl<'tcx> UnifyKey for RegionVidKey<'tcx>

type Value = UnifiedRegion<'tcx>

fn index(&self) -> u32

fn from_index(i: u32) -> Self

fn tag() -> &'static str

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

If true, then self should be preferred as root to other. Note that we assume a consistent partial ordering, so returning true implies that other.prefer_as_root_to(self) would return false. If there is no ordering between two keys (i.e., a.prefer_as_root_to(b) and b.prefer_as_root_to(a) both return false) then the rank will be used to determine the root in an optimal way.

impl<'tcx> Copy for RegionVidKey<'tcx>

impl<'tcx> StructuralPartialEq for RegionVidKey<'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: 4 bytes