[][src]Enum rustc::hir::intravisit::NestedVisitorMap

pub enum NestedVisitorMap<'this, 'tcx: 'this> {
    None,
    OnlyBodies(&'this Map<'tcx>),
    All(&'this Map<'tcx>),
}
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Specifies what nested things a visitor wants to visit. The most common choice is OnlyBodies, which will cause the visitor to visit fn bodies for fns that it encounters, but skip over nested item-like things.

See the comments on ItemLikeVisitor for more details on the overall visit strategy.

Variants

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Do not visit any nested things. When you add a new "non-nested" thing, you will want to audit such uses to see if they remain valid.

Use this if you are only walking some particular kind of tree (i.e., a type, or fn signature) and you don't want to thread a HIR map around.

🔬 This is a nightly-only experimental API. (rustc_private)

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Do not visit nested item-like things, but visit nested things that are inside of an item-like.

This is the most common choice. A very common pattern is to use visit_all_item_likes() as an outer loop, and to have the visitor that visits the contents of each item using this setting.

🔬 This is a nightly-only experimental API. (rustc_private)

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Visit all nested things, including item-likes.

This is an unusual choice. It is used when you want to process everything within their lexical context. Typically you kick off the visit by doing walk_krate().

Methods

impl<'this, 'tcx> NestedVisitorMap<'this, 'tcx>
[src]

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Returns the map to use for an "intra item-like" thing (if any). e.g., function body.

🔬 This is a nightly-only experimental API. (rustc_private)

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Returns the map to use for an "item-like" thing (if any). e.g., item, impl-item.

Auto Trait Implementations

impl<'this, 'tcx> !Send for NestedVisitorMap<'this, 'tcx>

impl<'this, 'tcx> !Sync for NestedVisitorMap<'this, 'tcx>

Blanket Implementations

impl<T> MaybeResult for T
[src]

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

impl<'a, T> Captures for T where
    T: ?Sized
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impl<T> From for T
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Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
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Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
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Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> BorrowMut for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
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🔬 This is a nightly-only experimental API. (get_type_id)

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<E> SpecializationError for E
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🔬 This is a nightly-only experimental API. (rustc_private)

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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more

impl<T> Erased for T
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impl<T> Send for T where
    T: ?Sized
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impl<T> Sync for T where
    T: ?Sized
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impl<T> Erased for T