Enum rustc_middle::middle::region::RvalueCandidateType

pub enum RvalueCandidateType {
    Borrow {
        target: ItemLocalId,
        lifetime: Option<Scope>,
    },
    Pattern {
        target: ItemLocalId,
        lifetime: Option<Scope>,
    },
}

Identifies the reason that a given expression is an rvalue candidate (see the rvalue_candidates field for more information what rvalue candidates in general). In constants, the lifetime field is None to indicate that certain expressions escape into ’static and should have no local cleanup scope.

Variants

Borrow

Fields

target: ItemLocalId

lifetime: Option<Scope>

Pattern

Fields

target: ItemLocalId

lifetime: Option<Scope>

Trait Implementations

impl Clone for RvalueCandidateType

fn clone(&self) -> RvalueCandidateType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RvalueCandidateType

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

Formats the value using the given formatter.

impl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for RvalueCandidateType

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

impl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for RvalueCandidateType

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

impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for RvalueCandidateType

fn hash_stable(
    &self,
    __hcx: &mut StableHashingContext<'__ctx>,
    __hasher: &mut StableHasher
)

impl Copy for RvalueCandidateType

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: 16 bytes

Size for each variant:

• Borrow: 12 bytes
• Pattern: 12 bytes