Enum PlaceId 

pub enum PlaceId {
    Local(usize),
    Field {
        base: Box<PlaceId>,
        field_idx: usize,
    },
}

Place identifier supporting field-sensitive analysis

Variants

Local(usize)

A local variable (e.g., _1)

Field

A field projection (e.g., _1.0)

Fields

base: Box<PlaceId>

field_idx: usize

Implementations

impl PlaceId

pub fn root_local(&self) -> usize

Get the root local of this place

pub fn project_field(&self, field_idx: usize) -> PlaceId

Create a field projection

pub fn has_prefix(&self, prefix: &PlaceId) -> bool

Check if this place has the given place as a prefix e.g., _1.0.1 has prefix _1, _1.0.1 has prefix _1.0, but not _2

Trait Implementations

impl Clone for PlaceId

fn clone(&self) -> PlaceId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlaceId

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

Formats the value using the given formatter.

impl Hash for PlaceId

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 PlaceId

fn eq(&self, other: &PlaceId) -> 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 Eq for PlaceId

impl StructuralPartialEq for PlaceId