Struct rustc_const_eval::interpret::eval_context::SpanGuard

struct SpanGuard(Span, PhantomData<*const u8>);

Tuple Fields

0: Span

1: PhantomData<*const u8>

Implementations

impl SpanGuard

fn new() -> Self

By default a SpanGuard does nothing.

fn enter(&mut self, span: Span)

If a span is entered, we exit the previous span (if any, normally none) and enter the new span. This is mainly so we don’t have to use Option for the tracing_span field of Frame by creating a dummy span to being with and then entering it once the frame has been pushed.

Trait Implementations

impl Drop for SpanGuard

fn drop(&mut self)

Executes the destructor for this type.

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: 32 bytes