Enum rustc_query_system::dep_graph::FingerprintStyle

pub enum FingerprintStyle {
    DefPathHash,
    HirId,
    Unit,
    Opaque,
}

Describes the contents of the fingerprint generated by a given query.

Variants

DefPathHash

The fingerprint is actually a DefPathHash.

HirId

The fingerprint is actually a HirId.

Unit

Query key was () or equivalent, so fingerprint is just zero.

Opaque

Some opaque hash.

Implementations

impl FingerprintStyle

pub fn reconstructible(self) -> bool

Trait Implementations

impl Clone for FingerprintStyle

fn clone(&self) -> FingerprintStyle

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FingerprintStyle

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

Formats the value using the given formatter.

impl PartialEq<FingerprintStyle> for FingerprintStyle

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

impl Eq for FingerprintStyle

impl StructuralEq for FingerprintStyle

impl StructuralPartialEq for FingerprintStyle

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

Size for each variant:

• DefPathHash: 0 bytes
• HirId: 0 bytes
• Unit: 0 bytes
• Opaque: 0 bytes