Struct rustc_expand::mbe::macro_rules::FirstSets

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struct FirstSets<'tt> {
    first: FxHashMap<Span, Option<TokenSet<'tt>>>,
}

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§first: FxHashMap<Span, Option<TokenSet<'tt>>>

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impl<'tt> FirstSets<'tt>

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fn new(tts: &'tt [TokenTree]) -> FirstSets<'tt>

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fn first(&self, tts: &'tt [TokenTree]) -> TokenSet<'tt>

Auto Trait Implementations§

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impl<'tt> DynSend for FirstSets<'tt>

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impl<'tt> DynSync for FirstSets<'tt>

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impl<'tt> Freeze for FirstSets<'tt>

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impl<'tt> !RefUnwindSafe for FirstSets<'tt>

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impl<'tt> !Send for FirstSets<'tt>

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impl<'tt> !Sync for FirstSets<'tt>

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impl<'tt> Unpin for FirstSets<'tt>

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impl<'tt> !UnwindSafe for FirstSets<'tt>

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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where T: ?Sized,

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

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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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fn from(t: T) -> T

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

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fn in_current_span(self) -> Instrumented<Self>

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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> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

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

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type Output = T

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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: 32 bytes