Struct salsa_2022::key::DependencyIndex

pub struct DependencyIndex { /* private fields */ }

An integer that uniquely identifies a particular query instance within the database. Used to track dependencies between queries. Fully ordered and equatable but those orderings are arbitrary, and meant to be used only for inserting into maps and the like.

Implementations

impl DependencyIndex

pub fn ingredient_index(self) -> IngredientIndex

pub fn key_index(self) -> Option<Id>

Trait Implementations

impl Clone for DependencyIndex

fn clone(&self) -> DependencyIndex

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DependencyIndex

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

Formats the value using the given formatter.

impl<Db> DebugWithDb<Db> for DependencyIndexwhere
    Db: ?Sized + Database,

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

if include_all_fields is false only identity fields should be read, which means: - for #[salsa::input] no fields - for #[salsa::tracked] only fields with #[id] attribute - for #[salsa::interned] any field

fn debug<'me, 'db>(&'me self, db: &'me Db) -> DebugWith<'me, Db>where
    Self: Sized + 'me,

fn debug_with<'me, 'db>(
    &'me self,
    db: &'me Db,
    include_all_fields: bool
) -> DebugWith<'me, Db>where
    Self: Sized + 'me,

fn debug_all<'me, 'db>(&'me self, db: &'me Db) -> DebugWith<'me, Db>where
    Self: Sized + 'me,

Be careful when using this method inside a tracked function, because the default macro generated implementation will read all fields, maybe introducing undesired dependencies.

fn into_debug<'me, 'db>(self, db: &'me Db) -> DebugWith<'me, Db>where
    Self: Sized + 'me,

fn into_debug_all<'me, 'db>(self, db: &'me Db) -> DebugWith<'me, Db>where
    Self: Sized + 'me,

Be careful when using this method inside a tracked function, because the default macro generated implementation will read all fields, maybe introducing undesired dependencies.

impl From<DatabaseKeyIndex> for DependencyIndex

fn from(value: DatabaseKeyIndex) -> Self

Converts to this type from the input type.

impl Hash for DependencyIndex

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 Ord for DependencyIndex

fn cmp(&self, other: &DependencyIndex) -> Ordering

This method returns an Ordering between self and other.

const fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

const fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

const fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<DependencyIndex> for DependencyIndex

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

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

const 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 PartialOrd<DependencyIndex> for DependencyIndex

fn partial_cmp(&self, other: &DependencyIndex) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

const fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

const fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

const fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

const fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<DependencyIndex> for DatabaseKeyIndex

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: DependencyIndex) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for DependencyIndex

impl Eq for DependencyIndex

impl StructuralEq for DependencyIndex

impl StructuralPartialEq for DependencyIndex