Enum rustc_mir::interpret::validity::PathElem[−][src]

pub enum PathElem {
    Field(Symbol),
    Variant(Symbol),
    GeneratorState(VariantIdx),
    CapturedVar(Symbol),
    ArrayElem(usize),
    TupleElem(usize),
    Deref,
    EnumTag,
    GeneratorTag,
    DynDowncast,
}
Expand description

We want to show a nice path to the invalid field for diagnostics, but avoid string operations in the happy case where no error happens. So we track a Vec<PathElem> where PathElem contains all the data we need to later print something for the user.

Variants

Field(Symbol)
Variant(Symbol)
GeneratorState(VariantIdx)
CapturedVar(Symbol)
ArrayElem(usize)
TupleElem(usize)
Deref
EnumTag
GeneratorTag
DynDowncast

Trait Implementations

impl Clone for PathElem[src]

fn clone(&self) -> PathElem[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for PathElem[src]

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

Formats the value using the given formatter. Read more

impl Copy for PathElem[src]

Auto Trait Implementations

impl RefUnwindSafe for PathElem

impl Send for PathElem

impl Sync for PathElem

impl Unpin for PathElem

impl UnwindSafe for PathElem

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> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

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

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

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

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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]