Enum BuiltinImplSource

pub enum BuiltinImplSource {
    Misc,
    Object(usize),
    TraitUpcasting,
    TupleUnsizing,
}

Variants

Misc

Some built-in impl we don’t need to differentiate. This should be used unless more specific information is necessary.

Object(usize)

A built-in impl for trait objects. The index is only used in winnowing.

TraitUpcasting

A built-in implementation of Upcast for trait objects to other trait objects.

This can be removed when feature(dyn_upcasting) is stabilized, since we only use it to detect when upcasting traits in hir typeck.

TupleUnsizing

Unsizing a tuple like (A, B, ..., X) to (A, B, ..., Y) if X unsizes to Y.

This can be removed when feature(tuple_unsizing) is stabilized, since we only use it to detect when unsizing tuples in hir typeck.

Trait Implementations

impl Clone for BuiltinImplSource

fn clone(&self) -> BuiltinImplSource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BuiltinImplSource

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

Formats the value using the given formatter.

impl<__D: TyDecoder> Decodable<__D> for BuiltinImplSource

fn decode(__decoder: &mut __D) -> Self

impl<__E: TyEncoder> Encodable<__E> for BuiltinImplSource

fn encode(&self, __encoder: &mut __E)

impl Hash for BuiltinImplSource

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<__CTX> HashStable<__CTX> for BuiltinImplSource

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq for BuiltinImplSource

fn eq(&self, other: &BuiltinImplSource) -> 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<I: Interner> TypeFoldable<I> for BuiltinImplSource

fn try_fold_with<F: FallibleTypeFolder<I>>( 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<I>>(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<I: Interner> TypeVisitable<I> for BuiltinImplSource

fn visit_with<F: TypeVisitor<I>>(&self, _: &mut F) -> F::Result

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

impl Copy for BuiltinImplSource

impl Eq for BuiltinImplSource

impl StructuralPartialEq for BuiltinImplSource

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: 16 bytes

Size for each variant:

• Misc: 0 bytes
• Object: 8 bytes
• TraitUpcasting: 0 bytes
• TupleUnsizing: 0 bytes