Struct Region 

pub struct Region<'db>(/* private fields */);

Implementations

impl Region<'static>

pub fn ingredient(zalsa: &Zalsa) -> &IngredientImpl<Self>

impl<'db> Region<'db>

pub fn new_<Db_, T0: Lookup<RegionKind<'db>> + Hash>( db: &'db Db_, kind_: T0, ) -> Self

where Db_: ?Sized + Database, RegionKind<'db>: HashEqLike<T0>,

impl Region<'_>

pub fn default_debug_fmt(this: Self, f: &mut Formatter<'_>) -> Result

where for<'db> RegionKind<'db>: Debug,

Default debug formatting for this struct (may be useful if you define your own Debug impl)

impl<'db> Region<'db>

pub fn new(interner: DbInterner<'db>, kind: RegionKind<'db>) -> Self

pub fn inner(&self) -> &RegionKind<'db>

pub fn new_early_param( interner: DbInterner<'db>, early_bound_region: EarlyParamRegion, ) -> Self

pub fn new_placeholder( interner: DbInterner<'db>, placeholder: PlaceholderRegion, ) -> Self

pub fn new_var(interner: DbInterner<'db>, v: RegionVid) -> Region<'db>

pub fn new_erased(interner: DbInterner<'db>) -> Region<'db>

pub fn new_bound( interner: DbInterner<'db>, index: DebruijnIndex, bound: BoundRegion, ) -> Region<'db>

pub fn is_placeholder(&self) -> bool

pub fn is_static(&self) -> bool

pub fn is_erased(&self) -> bool

pub fn is_var(&self) -> bool

pub fn is_error(&self) -> bool

pub fn error(interner: DbInterner<'db>) -> Self

pub fn type_flags(&self) -> TypeFlags

Trait Implementations

impl<'db> AsId for Region<'db>

fn as_id(&self) -> Id

impl<'db> Clone for Region<'db>

fn clone(&self) -> Region<'db>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Configuration for Region<'static>

const LOCATION: Location

const DEBUG_NAME: &'static str = "Region"

const PERSIST: bool = false

Whether this struct should be persisted with the database.

type Fields<'a> = (RegionKind<DbInterner<'a>>,)

The fields of the struct being interned.

type Struct<'db> = Region<'db>

The end user struct

fn serialize<S: Serializer>( fields: &Self::Fields<'_>, serializer: S, ) -> Result<S::Ok, S::Error>

Serialize the fields using serde.

fn deserialize<'de, D: Deserializer<'de>>( deserializer: D, ) -> Result<Self::Fields<'static>, D::Error>

Deserialize the fields using serde.

const REVISIONS: NonZero<usize> = _

fn heap_size(_value: &Self::Fields<'_>) -> Option<usize>

Returns the size of any heap allocations in the output value, in bytes.

impl Debug for Region<'_>

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

Formats the value using the given formatter.

impl<'db> Flags for Region<'db>

fn flags(&self) -> TypeFlags

fn outer_exclusive_binder(&self) -> DebruijnIndex

impl<'db> From<Region<'db>> for GenericArg<'db>

fn from(value: Region<'db>) -> Self

Converts to this type from the input type.

impl<'db> FromId for Region<'db>

fn from_id(id: Id) -> Self

impl<'db> HasJar for Region<'db>

const KIND: JarKind = zalsa_::JarKind::Struct

The [JarKind] for Self::Jar.

type Jar = JarImpl<Region<'static>>

The [Jar] associated with this ingredient.

impl<'db> Hash for Region<'db>

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<'db> HirDisplay<'db> for Region<'db>

fn hir_fmt(&self, f: &mut HirFormatter<'_, 'db>) -> Result

fn into_displayable<'a>( &'a self, db: &'db dyn HirDatabase, max_size: Option<usize>, limited_size: Option<usize>, omit_verbose_types: bool, display_target: DisplayTarget, display_kind: DisplayKind, closure_style: ClosureStyle, show_container_bounds: bool, ) -> HirDisplayWrapper<'a, 'db, Self>

where Self: Sized,

Returns a Displayable type that is human-readable.

fn display<'a>( &'a self, db: &'db dyn HirDatabase, display_target: DisplayTarget, ) -> HirDisplayWrapper<'a, 'db, Self>

where Self: Sized,

Returns a Displayable type that is human-readable. Use this for showing types to the user (e.g. diagnostics)

fn display_truncated<'a>( &'a self, db: &'db dyn HirDatabase, max_size: Option<usize>, display_target: DisplayTarget, ) -> HirDisplayWrapper<'a, 'db, Self>

where Self: Sized,

Returns a Displayable type that is human-readable and tries to be succinct. Use this for showing types to the user where space is constrained (e.g. doc popups)

fn display_limited<'a>( &'a self, db: &'db dyn HirDatabase, limited_size: Option<usize>, display_target: DisplayTarget, ) -> HirDisplayWrapper<'a, 'db, Self>

where Self: Sized,

Returns a Displayable type that is human-readable and tries to limit the number of items inside. Use this for showing definitions which may contain too many items, like trait, struct, enum

fn display_source_code<'a>( &'a self, db: &'db dyn HirDatabase, module_id: ModuleId, allow_opaque: bool, ) -> Result<String, DisplaySourceCodeError>

Returns a String representation of self that can be inserted into the given module. Use this when generating code (e.g. assists)

fn display_test<'a>( &'a self, db: &'db dyn HirDatabase, display_target: DisplayTarget, ) -> HirDisplayWrapper<'a, 'db, Self>

where Self: Sized,

Returns a String representation of self for test purposes

fn display_with_container_bounds<'a>( &'a self, db: &'db dyn HirDatabase, show_container_bounds: bool, display_target: DisplayTarget, ) -> HirDisplayWrapper<'a, 'db, Self>

where Self: Sized,

Returns a String representation of self that shows the constraint from the container for functions

impl<'db> IntoKind for Region<'db>

type Kind = RegionKind<DbInterner<'db>>

fn kind(self) -> Self::Kind

impl<'db> PartialEq for Region<'db>

fn eq(&self, other: &Region<'db>) -> 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<'db> Region<DbInterner<'db>> for Region<'db>

fn new_bound( interner: DbInterner<'db>, debruijn: DebruijnIndex, var: BoundRegion, ) -> Self

fn new_anon_bound( interner: DbInterner<'db>, debruijn: DebruijnIndex, var: BoundVar, ) -> Self

fn new_canonical_bound(interner: DbInterner<'db>, var: BoundVar) -> Self

fn new_static(interner: DbInterner<'db>) -> Self

fn new_placeholder( interner: DbInterner<'db>, var: <DbInterner<'db> as Interner>::PlaceholderRegion, ) -> Self

fn is_bound(self) -> bool

impl<'db> Relate<DbInterner<'db>> for Region<'db>

fn relate<R: TypeRelation<DbInterner<'db>>>( relation: &mut R, a: Self, b: Self, ) -> RelateResult<DbInterner<'db>, Self>

impl<'db> SalsaStructInDb for Region<'db>

type MemoIngredientMap = MemoIngredientSingletonIndex

fn lookup_ingredient_index(aux: &Zalsa) -> IngredientIndices

Lookup or create ingredient indices.

fn entries(zalsa: &Zalsa) -> impl Iterator<Item = DatabaseKeyIndex> + '_

Returns the IDs of any instances of this struct in the database.

fn cast(id: Id, type_id: TypeId) -> Option<Self>

Plumbing to support nested salsa supertypes.

unsafe fn memo_table( zalsa: &Zalsa, id: Id, current_revision: Revision, ) -> MemoTableWithTypes<'_>

Return the memo table associated with id.

impl<'db> ToTrace<'db> for Region<'db>

fn to_trace(cause: &ObligationCause, a: Self, b: Self) -> TypeTrace<'db>

impl<'db> TypeFoldable<DbInterner<'db>> for Region<'db>

fn try_fold_with<F: FallibleTypeFolder<DbInterner<'db>>>( self, folder: &mut F, ) -> Result<Self, F::Error>

The entry point for folding. To fold a value t with a folder f call: t.try_fold_with(f).

fn fold_with<F: TypeFolder<DbInterner<'db>>>(self, folder: &mut F) -> Self

The entry point for folding. To fold a value t with a folder f call: t.fold_with(f).

impl<'db> TypeVisitable<DbInterner<'db>> for Region<'db>

fn visit_with<V: TypeVisitor<DbInterner<'db>>>( &self, visitor: &mut V, ) -> V::Result

The entry point for visiting. To visit a value t with a visitor v call: t.visit_with(v).

impl<'db> Update for Region<'db>

unsafe fn maybe_update(old_pointer: *mut Self, new_value: Self) -> bool

Returns

impl<'db> Copy for Region<'db>

impl<'db> Eq for Region<'db>

impl<'db> Send for Region<'db>

impl<'db> StructuralPartialEq for Region<'db>

impl<'db> Sync for Region<'db>