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

pub struct LocalState<'tcx, Tag = ()> {
    pub value: LocalValue<Tag>,
    pub layout: Cell<Option<TyAndLayout<'tcx>>>,
}
Expand description

State of a local variable including a memoized layout

Fields

value: LocalValue<Tag>layout: Cell<Option<TyAndLayout<'tcx>>>
Expand description

Don’t modify if Some, this is only used to prevent computing the layout twice

Implementations

impl<'tcx, Tag: Copy + 'static> LocalState<'tcx, Tag>[src]

pub fn access(&self) -> InterpResult<'tcx, Operand<Tag>>[src]

Read the local’s value or error if the local is not yet live or not live anymore.

Note: This may only be invoked from the Machine::access_local hook and not from anywhere else. You may be invalidating machine invariants if you do!

pub fn access_mut(
    &mut self
) -> InterpResult<'tcx, Result<&mut LocalValue<Tag>, MemPlace<Tag>>>[src]

Overwrite the local. If the local can be overwritten in place, return a reference to do so; otherwise return the MemPlace to consult instead.

Note: This may only be invoked from the Machine::access_local_mut hook and not from anywhere else. You may be invalidating machine invariants if you do!

Trait Implementations

impl<'tcx, Tag: Clone> Clone for LocalState<'tcx, Tag>[src]

fn clone(&self) -> LocalState<'tcx, Tag>[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<'tcx, '__ctx, Tag> HashStable<StableHashingContext<'__ctx>> for LocalState<'tcx, Tag> where
    Tag: HashStable<StableHashingContext<'__ctx>>, [src]

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

impl<'tcx, Tag: PartialEq> PartialEq<LocalState<'tcx, Tag>> for LocalState<'tcx, Tag>[src]

fn eq(&self, other: &LocalState<'tcx, Tag>) -> bool[src]

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, other: &LocalState<'tcx, Tag>) -> bool[src]

This method tests for !=.

impl<'tcx, Tag: Eq> Eq for LocalState<'tcx, Tag>[src]

impl<'tcx, Tag> StructuralEq for LocalState<'tcx, Tag>[src]

impl<'tcx, Tag> StructuralPartialEq for LocalState<'tcx, Tag>[src]

Auto Trait Implementations

impl<'tcx, Tag = ()> !RefUnwindSafe for LocalState<'tcx, Tag>

impl<'tcx, Tag = ()> !Send for LocalState<'tcx, Tag>

impl<'tcx, Tag = ()> !Sync for LocalState<'tcx, Tag>

impl<'tcx, Tag> Unpin for LocalState<'tcx, Tag> where
    Tag: Unpin, 

impl<'tcx, Tag = ()> !UnwindSafe for LocalState<'tcx, Tag>

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]