pub struct TyCtxtFeed<'tcx, KEY: Copy> {
    pub tcx: TyCtxt<'tcx>,
    key: KEY,
}
Expand description

This struct should only be created by create_def.

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§tcx: TyCtxt<'tcx>§key: KEY

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impl<'tcx, K: IntoQueryParam<()> + Copy> TyCtxtFeed<'tcx, K>

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pub fn resolutions(self, value: resolutions<'tcx>) -> &'tcx ResolverGlobalCtxt

[query description - consider adding a doc-comment!] getting the resolver outputs

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impl<'tcx, K: IntoQueryParam<LocalDefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn opt_local_def_id_to_hir_id( self, value: opt_local_def_id_to_hir_id<'tcx> ) -> Option<HirId>

Gives access to the HIR ID for the given LocalDefId owner key if any.

Definitions that were generated with no HIR, would be feeded to return None.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn type_of(self, value: type_of<'tcx>) -> EarlyBinder<Ty<'tcx>>

Returns the Ty of the given DefId. If the DefId points to an alias, it will “skip” this alias to return the aliased type.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn generics_of(self, value: generics_of<'tcx>) -> &'tcx Generics

Maps from the DefId of an item (trait/struct/enum/fn) to its associated generics.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn explicit_item_bounds( self, value: explicit_item_bounds<'tcx> ) -> &'tcx [(Predicate<'tcx>, Span)]

Returns the list of bounds that can be used for SelectionCandidate::ProjectionCandidate(_) and ProjectionTyCandidate::TraitDef. Specifically this is the bounds written on the trait’s type definition, or those after the impl keyword

type X: Bound + 'lt
//      ^^^^^^^^^^^
impl Debug + Display
//   ^^^^^^^^^^^^^^^

key is the DefId of the associated type or opaque type.

Bounds from the parent (e.g. with nested impl trait) are not included.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn explicit_predicates_of( self, value: explicit_predicates_of<'tcx> ) -> GenericPredicates<'tcx>

Returns the predicates written explicitly by the user.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn inferred_outlives_of( self, value: inferred_outlives_of<'tcx> ) -> &'tcx [(Clause<'tcx>, Span)]

Returns the inferred outlives predicates (e.g., for struct Foo<'a, T> { x: &'a T }, this would return T: 'a).

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn associated_item(self, value: associated_item<'tcx>) -> AssocItem

Maps from a trait item to the trait item “descriptor”.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn opt_def_kind(self, value: opt_def_kind<'tcx>) -> Option<DefKind>

[query description - consider adding a doc-comment!] looking up definition kind of tcx.def_path_str(def_id)

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn opt_rpitit_info( self, value: opt_rpitit_info<'tcx> ) -> Option<ImplTraitInTraitData>

The opt_rpitit_info query returns the pair of the def id of the function where the RPIT is defined and the opaque def id if any.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn def_span(self, value: def_span<'tcx>) -> Span

Gets the span for the definition.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn def_ident_span(self, value: def_ident_span<'tcx>) -> Option<Span>

Gets the span for the identifier of the definition.

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn impl_defaultness(self, value: impl_defaultness<'tcx>) -> Defaultness

[query description - consider adding a doc-comment!] looking up whether tcx.def_path_str(def_id) is a default impl

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impl<'tcx, K: IntoQueryParam<DefId> + Copy> TyCtxtFeed<'tcx, K>

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pub fn visibility(self, value: visibility<'tcx>) -> Visibility<DefId>

Computes the visibility of the provided def_id.

If the item from the def_id doesn’t have a visibility, it will panic. For example a generic type parameter will panic if you call this method on it:

use std::fmt::Debug;

pub trait Foo<T: Debug> {}

In here, if you call visibility on T, it’ll panic.

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impl<'tcx, K: IntoQueryParam<CrateNum> + Copy> TyCtxtFeed<'tcx, K>

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pub fn crate_name(self, value: crate_name<'tcx>) -> Symbol

Gets the name of the crate.

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impl<'tcx, K: IntoQueryParam<()> + Copy> TyCtxtFeed<'tcx, K>

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pub fn output_filenames( self, value: output_filenames<'tcx> ) -> &'tcx Arc<OutputFilenames>

Return the filenames where output artefacts shall be stored.

This query returns an &Arc because codegen backends need the value even after the TyCtxt has been destroyed.

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impl<'tcx, K: IntoQueryParam<()> + Copy> TyCtxtFeed<'tcx, K>

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pub fn features_query(self, value: features_query<'tcx>) -> &'tcx Features

[query description - consider adding a doc-comment!] looking up enabled feature gates

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impl<'tcx, K: IntoQueryParam<()> + Copy> TyCtxtFeed<'tcx, K>

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pub fn metadata_loader( self, value: metadata_loader<'tcx> ) -> &'tcx Steal<Box<MetadataLoaderDyn>>

[query description - consider adding a doc-comment!] raw operations for metadata file access

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impl<'tcx, K: IntoQueryParam<()> + Copy> TyCtxtFeed<'tcx, K>

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pub fn crate_for_resolver( self, value: crate_for_resolver<'tcx> ) -> &'tcx Steal<Crate>

[query description - consider adding a doc-comment!] the ast before macro expansion and name resolution

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impl<'tcx, KEY: Copy> TyCtxtFeed<'tcx, KEY>

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pub fn key(&self) -> KEY

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impl<'tcx> TyCtxtFeed<'tcx, LocalDefId>

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pub fn def_id(&self) -> LocalDefId

Trait Implementations§

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impl<'tcx, KEY: Clone + Copy> Clone for TyCtxtFeed<'tcx, KEY>

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fn clone(&self) -> TyCtxtFeed<'tcx, KEY>

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl<'tcx, KEY: Copy + Copy> Copy for TyCtxtFeed<'tcx, KEY>

Auto Trait Implementations§

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impl<'tcx, KEY> !RefUnwindSafe for TyCtxtFeed<'tcx, KEY>

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impl<'tcx, KEY> !Send for TyCtxtFeed<'tcx, KEY>

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impl<'tcx, KEY> !Sync for TyCtxtFeed<'tcx, KEY>

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impl<'tcx, KEY> Unpin for TyCtxtFeed<'tcx, KEY>where KEY: Unpin,

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impl<'tcx, KEY> !UnwindSafe for TyCtxtFeed<'tcx, KEY>

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,

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fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> Rwhere I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> MaybeResult<T> for T

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type Error = !

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fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<'tcx, T> ToPredicate<'tcx, T> for T

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fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<Tcx, T, D> Value<Tcx, D> for Twhere Tcx: DepContext, D: DepKind,

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default fn from_cycle_error(tcx: Tcx, _: &[QueryInfo<D>]) -> T

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Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.