Struct TraitImpl 

pub struct TraitImpl {
    pub def_id: TraitImplId,
    pub item_meta: ItemMeta,
    pub src: TraitImplSource,
    pub impl_trait: TraitDeclRef,
    pub is_negative: bool,
    pub is_unsafe: bool,
    pub generics: GenericParams,
    pub implied_trait_refs: IndexVec<TraitClauseId, TraitRef>,
    pub consts: IndexMap<AssocConstId, GlobalDeclRef>,
    pub types: IndexMap<AssocTypeId, Binder<TraitAssocTyImpl>>,
    pub methods: IndexMap<TraitMethodId, Binder<FunDeclRef>>,
    pub vtable: VTableDecl,
}

A trait implementation.

For instance:

impl Foo for List {
  type Bar = ...

  fn baz(...) { ... }
}

Fields

def_id: TraitImplId

item_meta: ItemMeta

src: TraitImplSource

impl_trait: TraitDeclRef

The information about the implemented trait. Note that this contains the instantiation of the “parent” clauses.

is_negative: bool

Whether this is a negative impl (impl !Trait for Type).

is_unsafe: bool

Whether this is an unsafe impl.

generics: GenericParams

implied_trait_refs: IndexVec<TraitClauseId, TraitRef>

The trait references for the parent clauses (see TraitDecl).

consts: IndexMap<AssocConstId, GlobalDeclRef>

The implemented associated constants.

types: IndexMap<AssocTypeId, Binder<TraitAssocTyImpl>>

The implemented associated types.

methods: IndexMap<TraitMethodId, Binder<FunDeclRef>>

The implemented methods

vtable: VTableDecl

The virtual table instance for this trait implementation.

Implementations

impl TraitImpl

pub fn methods(&self) -> impl Iterator<Item = &Binder<FunDeclRef>>

pub fn is_unsafe_to_declare(&self, _krate: &TranslatedCrate) -> bool

Whether this trait impl is unsafe to declare, because it is an unsafe impl (safety.unsafe-impl) or it has an unsafe attribute (safety.unsafe-attribute).

Trait Implementations

impl AstVisitable for TraitImpl

fn drive<V: VisitAst>(&self, v: &mut V) -> ControlFlow<V::Break>

Recursively visit this type with the provided visitor. This calls the visitor’s visit_$any method if it exists, otherwise visit_inner.

fn drive_mut<V: VisitAstMut>(&mut self, v: &mut V) -> ControlFlow<V::Break>

Recursively visit this type with the provided visitor. This calls the visitor’s visit_$any method if it exists, otherwise visit_inner.

fn drive_two<V: ZipAst>(&self, other: &Self, v: &mut V) -> ControlFlow<V::Break>

Recursively visit this type with the provided visitor. This calls the visitor’s visit_$any method if it exists, otherwise visit_inner.

fn name(&self) -> &'static str

The name of the type, used for debug logging.

fn dyn_visit<T: AstVisitable>(&self, f: impl FnMut(&T))

where Self: Sized,

Visit all occurrences of that type inside self, in pre-order traversal.

fn dyn_visit_mut<T: AstVisitable>(&mut self, f: impl FnMut(&mut T))

where Self: Sized,

Visit all occurrences of that type inside self, in pre-order traversal.

impl Clone for TraitImpl

fn clone(&self) -> TraitImpl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TraitImpl

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

Formats the value using the given formatter.

impl<'de, __State: ?Sized> DeserializeState<'de, __State> for TraitImpl

where TraitImplId: DeserializeState<'de, __State>, ItemMeta: DeserializeState<'de, __State>, TraitImplSource: DeserializeState<'de, __State>, TraitDeclRef: DeserializeState<'de, __State>, bool: DeserializeState<'de, __State>, GenericParams: DeserializeState<'de, __State>, IndexVec<TraitClauseId, TraitRef>: DeserializeState<'de, __State>, IndexMap<AssocConstId, GlobalDeclRef>: DeserializeState<'de, __State>, IndexMap<AssocTypeId, Binder<TraitAssocTyImpl>>: DeserializeState<'de, __State>, IndexMap<TraitMethodId, Binder<FunDeclRef>>: DeserializeState<'de, __State>, VTableDecl: DeserializeState<'de, __State>,

fn deserialize_state<__D>( __state: &__State, __deserializer: __D, ) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

impl<'s, V> Drive<'s, V> for TraitImpl

where V: Visitor + Visit<'s, TraitImplId> + Visit<'s, ItemMeta> + Visit<'s, TraitImplSource> + Visit<'s, TraitDeclRef> + Visit<'s, bool> + Visit<'s, GenericParams> + Visit<'s, IndexVec<TraitClauseId, TraitRef>> + Visit<'s, IndexMap<AssocConstId, GlobalDeclRef>> + Visit<'s, IndexMap<AssocTypeId, Binder<TraitAssocTyImpl>>> + Visit<'s, IndexMap<TraitMethodId, Binder<FunDeclRef>>> + Visit<'s, VTableDecl>,

fn drive_inner(&'s self, visitor: &mut V) -> ControlFlow<V::Break>

Call v.visit() on the immediate contents of self.

impl<'s, V> DriveMut<'s, V> for TraitImpl

where V: Visitor + VisitMut<'s, TraitImplId> + VisitMut<'s, ItemMeta> + VisitMut<'s, TraitImplSource> + VisitMut<'s, TraitDeclRef> + VisitMut<'s, bool> + VisitMut<'s, GenericParams> + VisitMut<'s, IndexVec<TraitClauseId, TraitRef>> + VisitMut<'s, IndexMap<AssocConstId, GlobalDeclRef>> + VisitMut<'s, IndexMap<AssocTypeId, Binder<TraitAssocTyImpl>>> + VisitMut<'s, IndexMap<TraitMethodId, Binder<FunDeclRef>>> + VisitMut<'s, VTableDecl>,

fn drive_inner_mut(&'s mut self, visitor: &mut V) -> ControlFlow<V::Break>

Call v.visit() on the immediate contents of self.

impl<'s, V> DriveTwo<'s, V> for TraitImpl

where V: Visitor<Break: Default> + VisitTwo<'s, TraitImplId> + VisitTwo<'s, ItemMeta> + VisitTwo<'s, TraitImplSource> + VisitTwo<'s, TraitDeclRef> + VisitTwo<'s, bool> + VisitTwo<'s, GenericParams> + VisitTwo<'s, IndexVec<TraitClauseId, TraitRef>> + VisitTwo<'s, IndexMap<AssocConstId, GlobalDeclRef>> + VisitTwo<'s, IndexMap<AssocTypeId, Binder<TraitAssocTyImpl>>> + VisitTwo<'s, IndexMap<TraitMethodId, Binder<FunDeclRef>>> + VisitTwo<'s, VTableDecl>,

fn drive_two_inner( &'s self, other: &'s Self, visitor: &mut V, ) -> ControlFlow<V::Break>

Call v.visit() on the immediate contents of self and other, if they correspond. If the values don’t match up, this returns Break(Default::default()).

impl<C: AstFormatter> FmtWithCtx<C> for TraitImpl

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

fn with_ctx<'a>(&'a self, ctx: &'a C) -> WithCtx<'a, C, Self>

Returns a struct that implements Display. This allows the following:

fn to_string_with_ctx(&self, ctx: &C) -> String

impl<__State: ?Sized> SerializeState<__State> for TraitImpl

where TraitImplId: SerializeState<__State>, ItemMeta: SerializeState<__State>, TraitImplSource: SerializeState<__State>, TraitDeclRef: SerializeState<__State>, bool: SerializeState<__State>, GenericParams: SerializeState<__State>, IndexVec<TraitClauseId, TraitRef>: SerializeState<__State>, IndexMap<AssocConstId, GlobalDeclRef>: SerializeState<__State>, IndexMap<AssocTypeId, Binder<TraitAssocTyImpl>>: SerializeState<__State>, IndexMap<TraitMethodId, Binder<FunDeclRef>>: SerializeState<__State>, VTableDecl: SerializeState<__State>,

fn serialize_state<__S>( &self, __state: &__State, __serializer: __S, ) -> Result<__S::Ok, __S::Error>

where __S: Serializer,