Struct Const

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

Implementations

impl Const<'static>

pub fn ingredient<Db>(db: &Db) -> &IngredientImpl<Self>

where Db: ?Sized + Database,

impl<'db> Const<'db>

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

where Db_: ?Sized + Database, InternedWrapperNoDebug<WithCachedTypeInfo<ConstKind<'db>>>: HashEqLike<T0>,

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

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

impl<'db> Const<'db>

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

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

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

pub fn new_param(interner: DbInterner<'db>, param: ParamConst) -> Self

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

pub fn is_ct_infer(&self) -> bool

pub fn is_trivially_wf(self) -> bool

Trait Implementations

impl<'db> AsId for Const<'db>

fn as_id(&self) -> Id

impl<'db> ChalkToNextSolver<'db, Const<'db>> for Const<Interner>

fn to_nextsolver(&self, interner: DbInterner<'db>) -> Const<'db>

impl<'db> Clone for Const<'db>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Configuration for Const<'static>

const LOCATION: Location

const DEBUG_NAME: &'static str = "Const"

type Fields<'a> = (InternedWrapperNoDebug<WithCachedTypeInfo<ConstKind<DbInterner<'a>>>>,)

The fields of the struct being interned.

type Struct<'db> = Const<'db>

The end user struct

const REVISIONS: NonZero<usize> = _

impl<'db> Const<DbInterner<'db>> for Const<'db>

fn new_infer(interner: DbInterner<'db>, var: InferConst) -> Self

fn new_var(interner: DbInterner<'db>, var: ConstVid) -> Self

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

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

fn new_unevaluated( interner: DbInterner<'db>, uv: UnevaluatedConst<DbInterner<'db>>, ) -> Self

fn new_expr(interner: DbInterner<'db>, expr: ExprConst) -> Self

fn new_error(interner: DbInterner<'db>, guar: ErrorGuaranteed) -> Self

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

fn new_error_with_message(interner: I, msg: impl ToString) -> Self

fn is_ct_var(self) -> bool

fn is_ct_error(self) -> bool

impl<'db> Debug for Const<'db>

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

Formats the value using the given formatter.

impl<'db> Flags for Const<'db>

fn flags(&self) -> TypeFlags

fn outer_exclusive_binder(&self) -> DebruijnIndex

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

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

Converts to this type from the input type.

impl<'db> From<Const<'db>> for Term<'db>

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

Converts to this type from the input type.

impl<'db> FromId for Const<'db>

fn from_id(id: Id) -> Self

impl<'db> Hash for Const<'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 for Const<'db>

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

fn into_displayable<'a>( &'a self, db: &'a 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, Self>

where Self: Sized,

Returns a Displayable type that is human-readable.

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

where Self: Sized,

Returns a String representation of self for test purposes

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

where Self: Sized,

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

impl<'db> IntoKind for Const<'db>

type Kind = ConstKind<DbInterner<'db>>

fn kind(self) -> Self::Kind

impl<'db> PartialEq for Const<'db>

fn eq(&self, other: &Const<'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> Relate<DbInterner<'db>> for Const<'db>

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

impl<'db> SalsaStructInDb for Const<'db>

type MemoIngredientMap = MemoIngredientSingletonIndex

fn lookup_or_create_ingredient_index(aux: &Zalsa) -> IngredientIndices

Lookup or create ingredient indices.

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

Plumbing to support nested salsa supertypes.

impl<'db> ToTrace<'db> for Const<'db>

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

impl<'db> TypeFoldable<DbInterner<'db>> for Const<'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> TypeSuperFoldable<DbInterner<'db>> for Const<'db>

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

Provides a default fold for a recursive type of interest. This should only be called within TypeFolder methods, when a non-custom traversal is desired for the value of the type of interest passed to that method. For example, in MyFolder::try_fold_ty(ty), it is valid to call ty.try_super_fold_with(self), but any other folding should be done with xyz.try_fold_with(self).

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

A convenient alternative to try_super_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_super_fold_with.

impl<'db> TypeSuperVisitable<DbInterner<'db>> for Const<'db>

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

Provides a default visit for a recursive type of interest. This should only be called within TypeVisitor methods, when a non-custom traversal is desired for the value of the type of interest passed to that method. For example, in MyVisitor::visit_ty(ty), it is valid to call ty.super_visit_with(self), but any other visiting should be done with xyz.visit_with(self).

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

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

Returns

impl<'db> Copy for Const<'db>

impl<'db> Eq for Const<'db>

impl<'db> Send for Const<'db>

impl<'db> StructuralPartialEq for Const<'db>

impl<'db> Sync for Const<'db>