Enum rustc_hir::ClosureKind

pub enum ClosureKind {
    Closure,
    Coroutine(CoroutineKind),
    CoroutineClosure(CoroutineDesugaring),
}

Variants

Closure

This is a plain closure expression.

Coroutine(CoroutineKind)

This is a coroutine expression – i.e. a closure expression in which we’ve found a yield. These can arise either from “plain” coroutine usage (e.g. let x = || { yield (); }) or from a desugared expression (e.g. async and gen blocks).

CoroutineClosure(CoroutineDesugaring)

This is a coroutine-closure, which is a special sugared closure that returns one of the sugared coroutine (async/gen/async gen). It additionally allows capturing the coroutine’s upvars by ref, and therefore needs to be specially treated during analysis and borrowck.

Trait Implementations

impl Clone for ClosureKind

fn clone(&self) -> ClosureKind

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ClosureKind

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

Formats the value using the given formatter.

impl<__D: SpanDecoder> Decodable<__D> for ClosureKind

fn decode(__decoder: &mut __D) -> Self

impl<__E: SpanEncoder> Encodable<__E> for ClosureKind

fn encode(&self, __encoder: &mut __E)

impl Hash for ClosureKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<__CTX> HashStable<__CTX> for ClosureKind

where __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq for ClosureKind

fn eq(&self, other: &ClosureKind) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ClosureKind

impl Eq for ClosureKind

impl StructuralPartialEq for ClosureKind

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: 2 bytes

Size for each variant:

• Closure: 0 bytes
• Coroutine: 2 bytes
• CoroutineClosure: 1 byte