Struct miri::Stacks

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pub struct Stacks {
    stacks: RangeMap<Stack>,
    history: AllocHistory,
    exposed_tags: FxHashSet<BorTag>,
    modified_since_last_gc: bool,
}
Expand description

Extra per-allocation state.

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§stacks: RangeMap<Stack>§history: AllocHistory

Stores past operations on this allocation

§exposed_tags: FxHashSet<BorTag>

The set of tags that have been exposed inside this allocation.

§modified_since_last_gc: bool

Whether this memory has been modified since the last time the tag GC ran

Implementations§

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impl Stacks

Integration with the BorTag garbage collector

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pub fn remove_unreachable_tags(&mut self, live_tags: &FxHashSet<BorTag>)

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impl<'tcx> Stacks

Map per-stack operations to higher-level per-location-range operations.

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fn new(
    size: Size,
    perm: Permission,
    tag: BorTag,
    id: AllocId,
    machine: &MiriMachine<'_, '_>
) -> Self

Creates a new stack with an initial tag. For diagnostic purposes, we also need to know the AllocId of the allocation this is associated with.

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fn for_each(
    &mut self,
    range: AllocRange,
    dcx_builder: DiagnosticCxBuilder<'_, '_, 'tcx>,
    f: impl FnMut(&mut Stack, &mut DiagnosticCx<'_, '_, '_, 'tcx>, &mut FxHashSet<BorTag>) -> InterpResult<'tcx>
) -> InterpResult<'tcx>

Call f on every stack in the range.

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impl Stacks

Glue code to connect with Miri Machine Hooks

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pub fn new_allocation(
    id: AllocId,
    size: Size,
    state: &mut GlobalStateInner,
    kind: MemoryKind<MiriMemoryKind>,
    machine: &MiriMachine<'_, '_>
) -> Self

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pub fn before_memory_read<'tcx, 'mir, 'ecx>(
    &mut self,
    alloc_id: AllocId,
    tag: ProvenanceExtra,
    range: AllocRange,
    machine: &'ecx MiriMachine<'mir, 'tcx>
) -> InterpResult<'tcx>where
    'tcx: 'ecx,

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pub fn before_memory_write<'tcx>(
    &mut self,
    alloc_id: AllocId,
    tag: ProvenanceExtra,
    range: AllocRange,
    machine: &mut MiriMachine<'_, 'tcx>
) -> InterpResult<'tcx>

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pub fn before_memory_deallocation<'tcx>(
    &mut self,
    alloc_id: AllocId,
    tag: ProvenanceExtra,
    range: AllocRange,
    machine: &mut MiriMachine<'_, 'tcx>
) -> InterpResult<'tcx>

Trait Implementations§

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impl Clone for Stacks

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fn clone(&self) -> Stacks

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Stacks

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

Formats the value using the given formatter. Read more
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impl VisitTags for Stacks

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fn visit_tags(&self, visit: &mut dyn FnMut(BorTag))

Auto Trait Implementations§

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impl RefUnwindSafe for Stacks

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impl !Send for Stacks

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impl !Sync for Stacks

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impl Unpin for Stacks

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impl UnwindSafe for Stacks

Blanket Implementations§

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impl<T> Any for Twhere
    T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere
    T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
    T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere
    U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere
    T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere
    U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
    U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
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impl<V, T> VZip<V> for Twhere
    V: MultiLane<T>,

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fn vzip(self) -> V

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: 240 bytes