Enum rustc_hir::hir::LocalSource

pub enum LocalSource {
    Normal,
    ForLoopDesugar,
    AsyncFn,
    AwaitDesugar,
    AssignDesugar(Span),
}

Hints at the original code for a let statement.

Variants

Normal

A match _ { .. }.

ForLoopDesugar

A desugared for _ in _ { .. } loop.

AsyncFn

When lowering async functions, we create locals within the async move so that all parameters are dropped after the future is polled.

async fn foo(<pattern> @ x: Type) {
    async move {
        let <pattern> = x;
    }
}

AwaitDesugar

A desugared <expr>.await.

AssignDesugar(Span)

A desugared expr = expr, where the LHS is a tuple, struct or array. The span is that of the = sign.

Trait Implementations

impl Clone for LocalSource

fn clone(&self) -> LocalSource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LocalSource

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

Formats the value using the given formatter.

impl<__E: Encoder> Encodable<__E> for LocalSource

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

impl<__CTX> HashStable<__CTX> for LocalSource where
    __CTX: HashStableContext, 

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

impl Copy for LocalSource