Struct rustc::traits::specialize::specialization_graph::Children

struct Children {
    nonblanket_impls: FxHashMap<SimplifiedType, Vec<DefId>>,
    blanket_impls: Vec<DefId>,
}

🔬 This is a nightly-only experimental API. (rustc_private)

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Children of a given impl, grouped into blanket/non-blanket varieties as is done in TraitDef.

Fields

nonblanket_impls: FxHashMap<SimplifiedType, Vec<DefId>>

🔬 This is a nightly-only experimental API. (rustc_private)

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Impls of the trait.

blanket_impls: Vec<DefId>

🔬 This is a nightly-only experimental API. (rustc_private)

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Blanket impls associated with the trait.

Methods

impl<'a, 'gcx, 'tcx> Children

fn insert_blindly(&mut self, tcx: TyCtxt<'a, 'gcx, 'tcx>, impl_def_id: DefId)

🔬 This is a nightly-only experimental API. (rustc_private)

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Insert an impl into this set of children without comparing to any existing impls

fn remove_existing(&mut self, tcx: TyCtxt<'a, 'gcx, 'tcx>, impl_def_id: DefId)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Remove an impl from this set of children. Used when replacing an impl with a parent. The impl must be present in the list of children already.

fn insert(     &mut self,     tcx: TyCtxt<'a, 'gcx, 'tcx>,     impl_def_id: DefId,     simplified_self: Option<SimplifiedType> ) -> Result<Inserted, OverlapError>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Attempt to insert an impl into this set of children, while comparing for specialization relationships.

Important traits for Box<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn iter(&mut self) -> Box<Iterator<Item = DefId>>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Important traits for Box<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn filtered(&mut self, sty: SimplifiedType) -> Box<Iterator<Item = DefId>>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Trait Implementations

impl Default for Children

fn default() -> Children

Returns the "default value" for a type.

impl Encodable for Children

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

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impl Decodable for Children

fn decode<__D: Decoder>(d: &mut __D) -> Result<Children, __D::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

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impl<'a> HashStable<StableHashingContext<'a>> for Children

fn hash_stable<W: StableHasherResult>(     &self,     hcx: &mut StableHashingContext<'a>,     hasher: &mut StableHasher<W> )

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?