Type Alias rustc_middle::query::queries::crate_name::ProvidedValue

pub type ProvidedValue<'tcx> = Symbol;

This type alias specifies the type returned from query providers and the type used for decoding. For regular queries this is the declared returned type V, but arena_cache will use <V as Deref>::Target instead.

Aliased Type

struct ProvidedValue<'tcx>(SymbolIndex);

Fields

0: SymbolIndex

Trait Implementations

impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for Symbol

fn decode(d: &mut CacheDecoder<'a, 'tcx>) -> Self

impl<'a, 'tcx> Encodable<CacheEncoder<'a, 'tcx>> for Symbol

fn encode(&self, s: &mut CacheEncoder<'a, 'tcx>)

impl EraseType for Symbol

type Result = [u8; 4]

impl Key for Symbol

type CacheSelector = DefaultCacheSelector<Symbol>

fn default_span(&self, _tcx: TyCtxt<'_>) -> Span

In the event that a cycle occurs, if no explicit span has been given for a query with key self, what span should we use?

fn key_as_def_id(&self) -> Option<DefId>

If the key is a DefId or DefId–equivalent, return that DefId. Otherwise, return None.

fn ty_adt_id(&self) -> Option<DefId>

impl<'tcx> Lift<'tcx> for Symbol

type Lifted = Symbol

fn lift_to_tcx(self, _: TyCtxt<'tcx>) -> Option<Self>

impl ParameterizedOverTcx for Symbol

type Value<'tcx> = Symbol

impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for Symbol

fn try_fold_with<F: FallibleTypeFolder<TyCtxt<'tcx>>>( self, _: &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<TyCtxt<'tcx>>>(self, _: &mut F) -> Self

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

impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for Symbol

fn visit_with<F: TypeVisitor<TyCtxt<'tcx>>>( &self, _: &mut F ) -> ControlFlow<F::BreakTy>

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

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:4 bytes