Struct rustc_middle::infer::unify_key::RegionVidKey

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

Fields

vid: RegionVid

phantom: PhantomData<RegionVariableValue<'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

Converts to this type from the input type.

impl<'tcx> PartialEq 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: &Rhs) -> bool

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

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

type Value = RegionVariableValue<'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)>

You should return first the key that should be used as root, then the other key (that will then point to the new root).

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