Struct rustc_span::hygiene::ExpnHash

pub struct ExpnHash(Fingerprint);

A unique hash value associated to an expansion.

Tuple Fields

0: Fingerprint

Implementations

impl ExpnHash

pub fn stable_crate_id(self) -> StableCrateId

Returns the StableCrateId identifying the crate this ExpnHash originates from.

pub fn local_hash(self) -> u64

Returns the crate-local part of the ExpnHash.

Used for tests.

pub fn is_root(self) -> bool

fn new(stable_crate_id: StableCrateId, local_hash: u64) -> ExpnHash

Builds a new ExpnHash with the given StableCrateId and local_hash, where local_hash must be unique within its crate.

Trait Implementations

impl Clone for ExpnHash

fn clone(&self) -> ExpnHash

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExpnHash

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

Formats the value using the given formatter.

impl<__D: Decoder> Decodable<__D> for ExpnHash

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>

impl<__E: Encoder> Encodable<__E> for ExpnHash

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

impl Hash for ExpnHash

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, 

Feeds a slice of this type into the given Hasher.

impl<__CTX> HashStable<__CTX> for ExpnHash where
    __CTX: HashStableContext, 

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq<ExpnHash> for ExpnHash

fn eq(&self, other: &ExpnHash) -> bool

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

fn ne(&self, other: &ExpnHash) -> bool

This method tests for !=.

impl Copy for ExpnHash

impl Eq for ExpnHash

impl StructuralEq for ExpnHash

impl StructuralPartialEq for ExpnHash

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: 16 bytes