pub enum FieldPredecessor {
Field(FieldId),
Tag,
}Expand description
The predecessor of a field in a struct or enum variant.
Variants§
Trait Implementations§
Source§impl AstVisitable for FieldPredecessorwhere
FieldPredecessor: PartialEq,
impl AstVisitable for FieldPredecessorwhere
FieldPredecessor: PartialEq,
Source§fn drive<V: VisitAst>(&self, v: &mut V) -> ControlFlow<V::Break>
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_$any
method if it exists, otherwise visit_inner.Source§fn drive_mut<V: VisitAstMut>(&mut self, v: &mut V) -> ControlFlow<V::Break>
fn drive_mut<V: VisitAstMut>(&mut self, v: &mut V) -> ControlFlow<V::Break>
Recursively visit this type with the provided visitor. This calls the visitor’s
visit_$any
method if it exists, otherwise visit_inner.Source§fn drive_two<V: ZipAst>(&self, other: &Self, v: &mut V) -> ControlFlow<V::Break>
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.Source§fn dyn_visit<T: AstVisitable>(&self, f: impl FnMut(&T))where
Self: Sized,
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.Source§fn dyn_visit_mut<T: AstVisitable>(&mut self, f: impl FnMut(&mut T))where
Self: Sized,
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.Source§impl Clone for FieldPredecessor
impl Clone for FieldPredecessor
Source§fn clone(&self) -> FieldPredecessor
fn clone(&self) -> FieldPredecessor
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for FieldPredecessor
Source§impl Debug for FieldPredecessor
impl Debug for FieldPredecessor
Source§impl<'de, __State: ?Sized> DeserializeState<'de, __State> for FieldPredecessorwhere
FieldId: DeserializeState<'de, __State>,
impl<'de, __State: ?Sized> DeserializeState<'de, __State> for FieldPredecessorwhere
FieldId: DeserializeState<'de, __State>,
fn deserialize_state<__D>(
__state: &__State,
__deserializer: __D,
) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Source§impl PartialEq for FieldPredecessor
impl PartialEq for FieldPredecessor
Source§impl<__State: ?Sized> SerializeState<__State> for FieldPredecessorwhere
FieldId: SerializeState<__State>,
impl<__State: ?Sized> SerializeState<__State> for FieldPredecessorwhere
FieldId: SerializeState<__State>,
fn serialize_state<__S>(
&self,
__state: &__State,
__serializer: __S,
) -> Result<__S::Ok, __S::Error>where
__S: Serializer,
impl StructuralPartialEq for FieldPredecessor
Auto Trait Implementations§
impl Freeze for FieldPredecessor
impl RefUnwindSafe for FieldPredecessor
impl Send for FieldPredecessor
impl Sync for FieldPredecessor
impl Unpin for FieldPredecessor
impl UnsafeUnpin for FieldPredecessor
impl UnwindSafe for FieldPredecessor
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreimpl<T> Mappable for T
Source§impl<T> TyVisitable for Twhere
T: AstVisitable,
impl<T> TyVisitable for Twhere
T: AstVisitable,
Source§fn type_info(&self) -> TypeInfo
fn type_info(&self) -> TypeInfo
Compute various bits of information about the contents of this value. See methods on
TypeInfo.Source§fn visit_vars(&mut self, v: &mut impl VarsVisitor)
fn visit_vars(&mut self, v: &mut impl VarsVisitor)
Visit the variables contained in
self, as seen from the outside of self. This means
that any variable bound inside self will be skipped, and all the seen De Bruijn indices
will count from the outside of self.Source§fn substitute(self, generics: &GenericArgs) -> Self
fn substitute(self, generics: &GenericArgs) -> Self
Substitute the generic variables inside
self by replacing them with the provided values.
Note: if self is an item that comes from a TraitDecl, you must use
substitute_with_self or substitute_inner_binder, otherwise you’ll get panics.Source§fn substitute_inner_binder(self, generics: &GenericArgs) -> Self
fn substitute_inner_binder(self, generics: &GenericArgs) -> Self
Substitute the generic variables inside
self by replacing them with the provided values.
This is appropriate when substituting an inner binder.Source§fn substitute_explicits(self, generics: &GenericArgs) -> Self
fn substitute_explicits(self, generics: &GenericArgs) -> Self
Substitute only the type, region and const generic args.
Source§fn substitute_with_self(
self,
generics: &GenericArgs,
self_ref: &TraitRefKind,
) -> Self
fn substitute_with_self( self, generics: &GenericArgs, self_ref: &TraitRefKind, ) -> Self
Substitute the generic variables as well as the
TraitRefKind::SelfId trait ref.Source§fn substitute_with_tref(self, tref: &TraitRef) -> Self
fn substitute_with_tref(self, tref: &TraitRef) -> Self
Substitute the generic variables as well as the
TraitRefKind::SelfId trait ref.Source§fn try_substitute_with_tref(
self,
tref: &TraitRef,
) -> Result<Self, GenericsMismatch>
fn try_substitute_with_tref( self, tref: &TraitRef, ) -> Result<Self, GenericsMismatch>
Substitute the generic variables as well as the
TraitRefKind::SelfId trait ref.fn try_substitute( self, generics: &GenericArgs, ) -> Result<Self, GenericsMismatch>
fn try_substitute_with_self( self, generics: &GenericArgs, self_ref: &TraitRefKind, ) -> Result<Self, GenericsMismatch>
Source§fn move_under_binder(self) -> Self
fn move_under_binder(self) -> Self
Move under one binder.
Source§fn move_under_binders(self, depth: DeBruijnId) -> Self
fn move_under_binders(self, depth: DeBruijnId) -> Self
Move under
depth binders.Source§fn move_from_under_binder(self) -> Option<Self>
fn move_from_under_binder(self) -> Option<Self>
Move from under one binder.
Source§fn move_from_under_binders(self, depth: DeBruijnId) -> Option<Self>
fn move_from_under_binders(self, depth: DeBruijnId) -> Option<Self>
Move the value out of
depth binders. Returns None if it contains a variable bound in
one of these depth binders.Source§fn visit_db_id<B>(
&mut self,
f: impl FnMut(&mut DeBruijnId) -> ControlFlow<B>,
) -> ControlFlow<B>
fn visit_db_id<B>( &mut self, f: impl FnMut(&mut DeBruijnId) -> ControlFlow<B>, ) -> ControlFlow<B>
Visit the de Bruijn ids contained in
self, as seen from the outside of self. This means
that any variable bound inside self will be skipped, and all the seen indices will count
from the outside of self.Source§fn replace_erased_regions(self, f: impl FnMut() -> Region) -> Self
fn replace_erased_regions(self, f: impl FnMut() -> Region) -> Self
Replace all the erased regions by the output of the provided function. Binders levels are
handled automatically.