Struct rustc_mir::interpret::eval_context::SpanGuard[−][src]

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

Implementations

impl SpanGuard[src]

fn new() -> Self[src]

By default a SpanGuard does nothing.

fn enter(&mut self, span: Span)[src]

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[src]

fn drop(&mut self)[src]

Executes the destructor for this type. Read more

Auto Trait Implementations

impl !RefUnwindSafe for SpanGuard

impl !Send for SpanGuard

impl !Sync for SpanGuard

impl Unpin for SpanGuard

impl !UnwindSafe for SpanGuard

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.

impl<T> WithConstness for T[src]

fn with_constness(self, constness: Constness) -> ConstnessAnd<Self>[src]

fn with_const(self) -> ConstnessAnd<Self>[src]

fn without_const(self) -> ConstnessAnd<Self>[src]