Enum ProjectionStep 

pub enum ProjectionStep {
    Field(FieldIdx),
    Index,
}

A normalized step in a place projection chain.

Variants

Field(FieldIdx)

Index

Index projections are intentionally summarized without their concrete operand. The borrow solver only needs to know that an index boundary exists for provenance and diagnostics.

Trait Implementations

impl Clone for ProjectionStep

fn clone(&self) -> ProjectionStep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProjectionStep

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

Formats the value using the given formatter.

impl Hash for ProjectionStep

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 for ProjectionStep

fn eq(&self, other: &ProjectionStep) -> 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 Copy for ProjectionStep

impl Eq for ProjectionStep

impl StructuralPartialEq for ProjectionStep