Enum rustc_resolve::imports::ImportKind

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pub(crate) enum ImportKind<'a> {
    Single {
        source: Ident,
        target: Ident,
        source_bindings: PerNS<Cell<Result<Interned<'a, NameBindingData<'a>>, Determinacy>>>,
        target_bindings: PerNS<Cell<Option<Interned<'a, NameBindingData<'a>>>>>,
        type_ns_only: bool,
        nested: bool,
        id: NodeId,
    },
    Glob {
        is_prelude: bool,
        max_vis: Cell<Option<Visibility>>,
        id: NodeId,
    },
    ExternCrate {
        source: Option<Symbol>,
        target: Ident,
        id: NodeId,
    },
    MacroUse {
        warn_private: bool,
    },
    MacroExport,
}
Expand description

Contains data for specific kinds of imports.

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Single

Fields

§source: Ident

source in use prefix::source as target.

§target: Ident

target in use prefix::source as target.

§source_bindings: PerNS<Cell<Result<Interned<'a, NameBindingData<'a>>, Determinacy>>>

Bindings to which source refers to.

§target_bindings: PerNS<Cell<Option<Interned<'a, NameBindingData<'a>>>>>

Bindings introduced by target.

§type_ns_only: bool

true for ...::{self [as target]} imports, false otherwise.

§nested: bool

Did this import result from a nested import? ie. use foo::{bar, baz};

§id: NodeId

The ID of the UseTree that imported this Import.

In the case where the Import was expanded from a “nested” use tree, this id is the ID of the leaf tree. For example:

use foo::bar::{a, b}

If this is the import for foo::bar::a, we would have the ID of the UseTree for a in this field.

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Glob

Fields

§is_prelude: bool
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ExternCrate

Fields

§source: Option<Symbol>
§target: Ident
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MacroUse

Fields

§warn_private: bool

A field has been added indicating whether it should be reported as a lint, addressing issue#119301.

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MacroExport

Trait Implementations§

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impl<'a> Clone for ImportKind<'a>

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fn clone(&self) -> ImportKind<'a>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a> Debug for ImportKind<'a>

Manually implement Debug for ImportKind because the source/target_bindings contain Cells which can introduce infinite loops while printing.

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> !DynSend for ImportKind<'a>

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impl<'a> !DynSync for ImportKind<'a>

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impl<'a> !Freeze for ImportKind<'a>

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impl<'a> !RefUnwindSafe for ImportKind<'a>

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impl<'a> !Send for ImportKind<'a>

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impl<'a> !Sync for ImportKind<'a>

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impl<'a> Unpin for ImportKind<'a>

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impl<'a> !UnwindSafe for ImportKind<'a>

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<P> IntoQueryParam<P> for P

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impl<T> MaybeResult<T> for T

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type Error = !

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fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<'tcx, T> ToPredicate<'tcx, T> for T

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fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

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

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed ) -> T

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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: 104 bytes

Size for each variant:

  • Single: 103 bytes
  • Glob: 11 bytes
  • ExternCrate: 23 bytes
  • MacroUse: 1 byte
  • MacroExport: 0 bytes