Struct rustc_data_structures::stable_hasher::HashingControls

pub struct HashingControls {
    pub hash_spans: bool,
}

Controls what data we do or do not hash. Whenever a HashStable implementation caches its result, it needs to include HashingControls as part of the key, to ensure that it does not produce an incorrect result (for example, using a Fingerprint produced while hashing Spans when a Fingerprint without Spans is being requested)

Fields

hash_spans: bool

Trait Implementations

impl Clone for HashingControls

fn clone(&self) -> HashingControls

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HashingControls

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

Formats the value using the given formatter.

impl Hash for HashingControls

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 PartialEq<HashingControls> for HashingControls

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

impl StructuralEq for HashingControls

impl StructuralPartialEq for HashingControls

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: 1 byte