Struct rustc_middle::ty::TyCtxtFeed

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

This struct should only be created by create_def.

Fields§

§tcx: TyCtxt<'tcx>§key: KEY

Implementations§

source§

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

source

pub fn key(&self) -> KEY

source§

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

source

pub fn def_id(&self) -> LocalDefId

source§

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

source

pub fn resolutions(self, value: ProvidedValue<'tcx>)

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

source§

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

source

pub fn opt_local_def_id_to_hir_id(self, value: ProvidedValue<'tcx>)

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

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

source§

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

source

pub fn type_of(self, value: ProvidedValue<'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.

source§

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

source

pub fn is_type_alias_impl_trait(self, value: ProvidedValue<'tcx>)

[query description - consider adding a doc-comment!] determine whether the opaque is a type-alias impl trait

source§

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

source

pub fn generics_of(self, value: ProvidedValue<'tcx>)

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

source§

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

source

pub fn explicit_item_bounds(self, value: ProvidedValue<'tcx>)

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.

source§

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

source

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

Returns the predicates written explicitly by the user.

source§

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

source

pub fn inferred_outlives_of(self, value: ProvidedValue<'tcx>)

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

source§

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

source

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

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

source§

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

source

pub fn def_kind(self, value: ProvidedValue<'tcx>)

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

source§

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

source

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

Gets the span for the definition.

source§

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

source

pub fn def_ident_span(self, value: ProvidedValue<'tcx>)

Gets the span for the identifier of the definition.

source§

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

source

pub fn param_env(self, value: ProvidedValue<'tcx>)

Gets the ParameterEnvironment for a given item; this environment will be in “user-facing” mode, meaning that it is suitable for type-checking etc, and it does not normalize specializable associated types. This is almost always what you want, unless you are doing MIR optimizations, in which case you might want to use reveal_all() method to change modes.

source§

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

source

pub fn defaultness(self, value: ProvidedValue<'tcx>)

Returns whether the impl or associated function has the default keyword.

source§

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

source

pub fn visibility(self, value: ProvidedValue<'tcx>)

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.

source§

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

source

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

Gets the name of the crate.

source§

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

source

pub fn output_filenames(self, value: ProvidedValue<'tcx>)

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.

source§

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

source

pub fn features_query(self, value: ProvidedValue<'tcx>)

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

source§

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

source

pub fn crate_for_resolver(self, value: ProvidedValue<'tcx>)

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

source§

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

source

pub fn stripped_cfg_items(self, value: ProvidedValue<'tcx>)

Get all item paths that were stripped by a #[cfg] in a particular crate. Should not be called for the local crate before the resolver outputs are created, as it is only fed there.

Trait Implementations§

source§

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

source§

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
source§

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

Auto Trait Implementations§

§

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

§

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

§

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

§

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

§

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

§

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

§

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

Blanket Implementations§

source§

impl<T> Aligned for T

source§

const ALIGN: Alignment = _

Alignment of Self.
source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

source§

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

source§

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

source§

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

source§

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

source§

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

source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T, R> CollectAndApply<T, R> for T

source§

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

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

§

type Output = R

§

impl<T> Filterable for T

§

fn filterable( self, filter_name: &'static str ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

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

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.

source§

impl<P> IntoQueryParam<P> for P

source§

impl<T> MaybeResult<T> for T

§

type Error = !

source§

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

source§

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

§

impl<T> Pointable for T

§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

impl<T> Same for T

§

type Output = T

Should always be Self
source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<'tcx, T> ToPredicate<'tcx, T> for T

source§

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

source§

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

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

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

§

fn vzip(self) -> V

source§

impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

source§

default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed ) -> T

source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

impl<'a, T> Captures<'a> for T
where T: ?Sized,

§

impl<T> ErasedDestructor for T
where T: 'static,

Layout§

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