rustc_expand::expand

Enum AstFragment

Source 
pub enum AstFragment {

Show 18 variants    OptExpr(Option<P<Expr>>),
    MethodReceiverExpr(P<Expr>),
    Expr(P<Expr>),
    Pat(P<Pat>),
    Ty(P<Ty>),
    Stmts(SmallVec<[Stmt; 1]>),
    Items(SmallVec<[P<Item>; 1]>),
    TraitItems(SmallVec<[P<AssocItem>; 1]>),
    ImplItems(SmallVec<[P<AssocItem>; 1]>),
    ForeignItems(SmallVec<[P<ForeignItem>; 1]>),
    Arms(SmallVec<[Arm; 1]>),
    ExprFields(SmallVec<[ExprField; 1]>),
    PatFields(SmallVec<[PatField; 1]>),
    GenericParams(SmallVec<[GenericParam; 1]>),
    Params(SmallVec<[Param; 1]>),
    FieldDefs(SmallVec<[FieldDef; 1]>),
    Variants(SmallVec<[Variant; 1]>),
    Crate(Crate),

}
Expand description

A fragment of AST that can be produced by a single macro expansion. Can also serve as an input and intermediate result for macro expansion operations.

Variants§

§

OptExpr(Option<P<Expr>>)

§

MethodReceiverExpr(P<Expr>)

§

Expr(P<Expr>)

§

Pat(P<Pat>)

§

Ty(P<Ty>)

§

Stmts(SmallVec<[Stmt; 1]>)

§

Items(SmallVec<[P<Item>; 1]>)

§

TraitItems(SmallVec<[P<AssocItem>; 1]>)

§

ImplItems(SmallVec<[P<AssocItem>; 1]>)

§

ForeignItems(SmallVec<[P<ForeignItem>; 1]>)

§

Arms(SmallVec<[Arm; 1]>)

§

ExprFields(SmallVec<[ExprField; 1]>)

§

PatFields(SmallVec<[PatField; 1]>)

§

GenericParams(SmallVec<[GenericParam; 1]>)

§

Params(SmallVec<[Param; 1]>)

§

FieldDefs(SmallVec<[FieldDef; 1]>)

§

Variants(SmallVec<[Variant; 1]>)

§

Crate(Crate)

Implementations§

Source§

impl AstFragment

Source

fn add_placeholders(&mut self, placeholders: &[NodeId])

Source

pub(crate) fn make_opt_expr(self) -> Option<P<Expr>>

Source

pub(crate) fn make_method_receiver_expr(self) -> P<Expr>

Source

pub fn make_expr(self) -> P<Expr>

Source

pub fn make_pat(self) -> P<Pat>

Source

pub fn make_ty(self) -> P<Ty>

Source

pub fn make_stmts(self) -> SmallVec<[Stmt; 1]>

Source

pub fn make_items(self) -> SmallVec<[P<Item>; 1]>

Source

pub fn make_trait_items(self) -> SmallVec<[P<AssocItem>; 1]>

Source

pub fn make_impl_items(self) -> SmallVec<[P<AssocItem>; 1]>

Source

pub fn make_foreign_items(self) -> SmallVec<[P<ForeignItem>; 1]>

Source

pub fn make_arms(self) -> SmallVec<[Arm; 1]>

Source

pub fn make_expr_fields(self) -> SmallVec<[ExprField; 1]>

Source

pub fn make_pat_fields(self) -> SmallVec<[PatField; 1]>

Source

pub fn make_generic_params(self) -> SmallVec<[GenericParam; 1]>

Source

pub fn make_params(self) -> SmallVec<[Param; 1]>

Source

pub fn make_field_defs(self) -> SmallVec<[FieldDef; 1]>

Source

pub fn make_variants(self) -> SmallVec<[Variant; 1]>

Source

pub fn make_crate(self) -> Crate

Source

fn make_ast<T: InvocationCollectorNode>(self) -> T::OutputTy

Source

pub(crate) fn mut_visit_with<F: MutVisitor>(&mut self, vis: &mut F)

Source

pub fn visit_with<'a, V: Visitor<'a>>(&'a self, visitor: &mut V) -> V::Result

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Aligned for T

Source§

const ALIGN: Alignment = _

Alignment of Self.
Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
§

impl<T, R> CollectAndApply<T, R> for T

§

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<_>>()).

§

type Output = R

Source§

impl<T> Filterable for T

Source§

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
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T> Instrument for T

Source§

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> IntoEither for T

Source§

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
Source§

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
Source§

impl<T> Pointable for T

Source§

const ALIGN: usize = _

The alignment of pointer.
Source§

type Init = T

The type for initializers.
Source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
Source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
Source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

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

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

§

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

§

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

§

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

Source§

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

Source§

fn vzip(self) -> V

Source§

impl<T> WithSubscriber for T

Source§

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
Source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
Source§

impl<'a, T> Captures<'a> for T
where T: ?Sized,

Source§

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: 120 bytes

Size for each variant:

  • OptExpr: 8 bytes
  • MethodReceiverExpr: 8 bytes
  • Expr: 8 bytes
  • Pat: 8 bytes
  • Ty: 8 bytes
  • Stmts: 40 bytes
  • Items: 24 bytes
  • TraitItems: 24 bytes
  • ImplItems: 24 bytes
  • ForeignItems: 24 bytes
  • Arms: 56 bytes
  • ExprFields: 56 bytes
  • PatFields: 56 bytes
  • GenericParams: 104 bytes
  • Params: 48 bytes
  • FieldDefs: 88 bytes
  • Variants: 112 bytes
  • Crate: 40 bytes