Struct rustc_expand::expand::InvocationCollector

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struct InvocationCollector<'a, 'b> {
    cx: &'a mut ExtCtxt<'b>,
    invocations: Vec<(Invocation, Option<Lrc<SyntaxExtension>>)>,
    monotonic: bool,
}

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§cx: &'a mut ExtCtxt<'b>§invocations: Vec<(Invocation, Option<Lrc<SyntaxExtension>>)>§monotonic: bool

Implementations§

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impl<'a, 'b> InvocationCollector<'a, 'b>

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fn cfg(&self) -> StripUnconfigured<'_>

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fn collect( &mut self, fragment_kind: AstFragmentKind, kind: InvocationKind ) -> AstFragment

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fn collect_bang( &mut self, mac: P<MacCall>, kind: AstFragmentKind ) -> AstFragment

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fn collect_attr( &mut self, (attr, pos, derives): (Attribute, usize, Vec<Path>), item: Annotatable, kind: AstFragmentKind ) -> AstFragment

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fn take_first_attr( &self, item: &mut impl HasAttrs ) -> Option<(Attribute, usize, Vec<Path>)>

If item is an attribute invocation, remove the attribute and return it together with its position and derives following it. We have to collect the derives in order to resolve legacy derive helpers (helpers written before derives that introduce them).

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fn check_attributes(&self, attrs: &[Attribute], call: &MacCall)

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fn expand_cfg_true( &mut self, node: &mut impl HasAttrs, attr: Attribute, pos: usize ) -> (bool, Option<MetaItem>)

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fn expand_cfg_attr( &self, node: &mut impl HasAttrs, attr: &Attribute, pos: usize )

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fn flat_map_node<Node: InvocationCollectorNode<OutputTy: Default>>( &mut self, node: Node ) -> Node::OutputTy

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fn visit_node<Node: InvocationCollectorNode<OutputTy = Node> + DummyAstNode>( &mut self, node: &mut Node )

Trait Implementations§

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impl<'a, 'b> MutVisitor for InvocationCollector<'a, 'b>

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fn flat_map_item(&mut self, node: P<Item>) -> SmallVec<[P<Item>; 1]>

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fn flat_map_trait_item( &mut self, node: P<AssocItem> ) -> SmallVec<[P<AssocItem>; 1]>

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fn flat_map_impl_item( &mut self, node: P<AssocItem> ) -> SmallVec<[P<AssocItem>; 1]>

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fn flat_map_foreign_item( &mut self, node: P<ForeignItem> ) -> SmallVec<[P<ForeignItem>; 1]>

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fn flat_map_variant(&mut self, node: Variant) -> SmallVec<[Variant; 1]>

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fn flat_map_field_def(&mut self, node: FieldDef) -> SmallVec<[FieldDef; 1]>

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fn flat_map_pat_field(&mut self, node: PatField) -> SmallVec<[PatField; 1]>

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fn flat_map_expr_field(&mut self, node: ExprField) -> SmallVec<[ExprField; 1]>

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fn flat_map_param(&mut self, node: Param) -> SmallVec<[Param; 1]>

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fn flat_map_generic_param( &mut self, node: GenericParam ) -> SmallVec<[GenericParam; 1]>

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fn flat_map_arm(&mut self, node: Arm) -> SmallVec<[Arm; 1]>

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fn flat_map_stmt(&mut self, node: Stmt) -> SmallVec<[Stmt; 1]>

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fn visit_crate(&mut self, node: &mut Crate)

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fn visit_ty(&mut self, node: &mut P<Ty>)

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fn visit_pat(&mut self, node: &mut P<Pat>)

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fn visit_expr(&mut self, node: &mut P<Expr>)

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fn visit_method_receiver_expr(&mut self, node: &mut P<Expr>)

This method is a hack to workaround unstable of stmt_expr_attributes. It can be removed once that feature is stabilized.
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fn filter_map_expr(&mut self, node: P<Expr>) -> Option<P<Expr>>

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fn visit_block(&mut self, node: &mut P<Block>)

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fn visit_id(&mut self, id: &mut NodeId)

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const VISIT_TOKENS: bool = false

Mutable token visiting only exists for the macro_rules token marker and should not be used otherwise. Token visitor would be entirely separate from the regular visitor if the marker didn’t have to visit AST fragments in nonterminal tokens.
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fn visit_meta_list_item(&mut self, list_item: &mut NestedMetaItem)

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fn visit_meta_item(&mut self, meta_item: &mut MetaItem)

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fn visit_use_tree(&mut self, use_tree: &mut UseTree)

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fn visit_fn_header(&mut self, header: &mut FnHeader)

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fn visit_fn_decl(&mut self, d: &mut P<FnDecl>)

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fn visit_coroutine_kind(&mut self, a: &mut CoroutineKind)

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fn visit_closure_binder(&mut self, b: &mut ClosureBinder)

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fn visit_anon_const(&mut self, c: &mut AnonConst)

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fn visit_generic_arg(&mut self, arg: &mut GenericArg)

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fn visit_lifetime(&mut self, l: &mut Lifetime)

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fn visit_constraint(&mut self, t: &mut AssocConstraint)

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fn visit_foreign_mod(&mut self, nm: &mut ForeignMod)

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fn visit_ident(&mut self, i: &mut Ident)

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fn visit_path(&mut self, p: &mut Path)

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fn visit_qself(&mut self, qs: &mut Option<P<QSelf>>)

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fn visit_generic_args(&mut self, p: &mut GenericArgs)

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fn visit_angle_bracketed_parameter_data(&mut self, p: &mut AngleBracketedArgs)

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fn visit_parenthesized_parameter_data(&mut self, p: &mut ParenthesizedArgs)

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fn visit_local(&mut self, l: &mut P<Local>)

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fn visit_mac_call(&mut self, mac: &mut MacCall)

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fn visit_macro_def(&mut self, def: &mut MacroDef)

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fn visit_label(&mut self, label: &mut Label)

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fn visit_attribute(&mut self, at: &mut Attribute)

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fn visit_generics(&mut self, generics: &mut Generics)

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fn visit_trait_ref(&mut self, tr: &mut TraitRef)

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fn visit_poly_trait_ref(&mut self, p: &mut PolyTraitRef)

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fn visit_variant_data(&mut self, vdata: &mut VariantData)

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fn visit_param_bound(&mut self, tpb: &mut GenericBound)

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fn visit_precise_capturing_arg(&mut self, arg: &mut PreciseCapturingArg)

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fn visit_mt(&mut self, mt: &mut MutTy)

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fn visit_where_clause(&mut self, where_clause: &mut WhereClause)

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fn visit_where_predicate(&mut self, where_predicate: &mut WherePredicate)

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fn visit_vis(&mut self, vis: &mut Visibility)

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fn visit_span(&mut self, _sp: &mut Span)

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fn visit_inline_asm(&mut self, asm: &mut InlineAsm)

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fn visit_inline_asm_sym(&mut self, sym: &mut InlineAsmSym)

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fn visit_format_args(&mut self, fmt: &mut FormatArgs)

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fn visit_capture_by(&mut self, capture_by: &mut CaptureBy)

Auto Trait Implementations§

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impl<'a, 'b> !DynSend for InvocationCollector<'a, 'b>

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impl<'a, 'b> !DynSync for InvocationCollector<'a, 'b>

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impl<'a, 'b> Freeze for InvocationCollector<'a, 'b>

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impl<'a, 'b> !RefUnwindSafe for InvocationCollector<'a, 'b>

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impl<'a, 'b> !Send for InvocationCollector<'a, 'b>

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impl<'a, 'b> !Sync for InvocationCollector<'a, 'b>

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impl<'a, 'b> Unpin for InvocationCollector<'a, 'b>

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impl<'a, 'b> !UnwindSafe for InvocationCollector<'a, 'b>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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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<_>>()).

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type Output = R

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impl<T> Filterable for T

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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
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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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 more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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 more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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fn upcast(self, interner: I) -> U

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impl<I, T> UpcastFrom<I, T> for T

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fn upcast_from(from: T, _tcx: I) -> T

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

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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

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: 40 bytes