Enum rustc_mir_dataflow::value_analysis::TrackElem

pub enum TrackElem {
    Field(FieldIdx),
    Variant(VariantIdx),
    Discriminant,
    DerefLen,
}

The set of projection elements that can be used by a tracked place.

Although only field projections are currently allowed, this could change in the future.

Variants

Field(FieldIdx)

Variant(VariantIdx)

Discriminant

DerefLen

Trait Implementations

impl Clone for TrackElem

fn clone(&self) -> TrackElem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TrackElem

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

Formats the value using the given formatter.

impl Hash for TrackElem

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 PartialEq<TrackElem> for TrackElem

fn eq(&self, other: &TrackElem) -> 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<V, T> TryFrom<ProjectionElem<V, T>> for TrackElem

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: ProjectionElem<V, T>) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for TrackElem

impl Eq for TrackElem

impl StructuralEq for TrackElem

impl StructuralPartialEq for TrackElem

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: 8 bytes

Size for each variant:

• Field: 4 bytes
• Variant: 4 bytes
• Discriminant: 0 bytes
• DerefLen: 0 bytes