Enum UpvarCapture 

pub enum UpvarCapture {
    ByValue,
    ByUse,
    ByRef(BorrowKind),
}

Information describing the capture of an upvar. This is computed during typeck, specifically by regionck.

Variants

ByValue

Upvar is captured by value. This is always true when the closure is labeled move, but can also be true in other cases depending on inference.

ByUse

Upvar is captured by use. This is true when the closure is labeled use.

ByRef(BorrowKind)

Upvar is captured by reference.

Trait Implementations

impl Clone for UpvarCapture

fn clone(&self) -> UpvarCapture

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UpvarCapture

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

Formats the value using the given formatter.

impl Hash for UpvarCapture

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 PartialEq for UpvarCapture

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for UpvarCapture

impl Eq for UpvarCapture

impl StructuralPartialEq for UpvarCapture