# Struct rustc_resolve::late::Rib

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    pub(crate) struct Rib<'a, R = Res<NodeId>> {
        pub bindings: FxHashMap<Ident, R>,
        pub kind: RibKind<'a>,
    }

Expand description

A single local scope.

A rib represents a scope names can live in. Note that these appear in many places, not just around braces. At any place where the list of accessible names (of the given namespace) changes or a new restrictions on the name accessibility are introduced, a new rib is put onto a stack. This may be, for example, a `let` statement (because it introduces variables), a macro, etc.

Different rib kinds are transparent for different names.

The resolution keeps a separate stack of ribs as it traverses the AST for each namespace. When resolving, the name is looked up from inside out.

## Fields§

§`bindings: FxHashMap<Ident, R>`§`kind: RibKind<'a>`

## Implementations§

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### impl<'a, R> Rib<'a, R>

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#### fn new(kind: RibKind<'a>) -> Rib<'a, R>

## Trait Implementations§

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### impl<'a, R: Debug> Debug for Rib<'a, R>

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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, R = Res<NodeId>> !RefUnwindSafe for Rib<'a, R>

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### impl<'a, R = Res<NodeId>> !Send for Rib<'a, R>

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### impl<'a, R = Res<NodeId>> !Sync for Rib<'a, R>

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### impl<'a, R> Unpin for Rib<'a, R>
where R: Unpin,

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### impl<'a, R = Res<NodeId>> !UnwindSafe for Rib<'a, R>

## Blanket Implementations§

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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> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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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, 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.

## 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: 56 bytes