Enum rustc::ty::UpvarCapture

pub enum UpvarCapture<'tcx> {
    ByValue,
    ByRef(UpvarBorrow<'tcx>),
}

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

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

Variants

ByValue

🔬 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?

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.

ByRef(UpvarBorrow<'tcx>)

🔬 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?

Upvar is captured by reference.

Trait Implementations

impl<'a, 'gcx> HashStable<StableHashingContext<'a>> for UpvarCapture<'gcx>

fn hash_stable<W: StableHasherResult>(     &self,     hcx: &mut StableHashingContext<'a>,     hasher: &mut StableHasher<W> )

🔬 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<'tcx> PartialEq for UpvarCapture<'tcx>

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

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

fn ne(&self, other: &UpvarCapture<'tcx>) -> bool

This method tests for !=.

impl<'tcx> Clone for UpvarCapture<'tcx>

fn clone(&self) -> UpvarCapture<'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for UpvarCapture<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> Copy for UpvarCapture<'tcx>

impl<'tcx> Encodable for UpvarCapture<'tcx>

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

🔬 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<'tcx> Decodable for UpvarCapture<'tcx>

fn decode<__D: Decoder>(d: &mut __D) -> Result<UpvarCapture<'tcx>, __D::Error>

🔬 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?