Struct VmSnapshot 

pub struct VmSnapshot {
    pub index: u64,
    pub ip: usize,
    pub sp: usize,
    pub call_depth: usize,
    pub function_id: Option<u16>,
    pub function_name: Option<String>,
    pub instruction_count: u64,
    pub stack_data: Vec<u64>,
    pub stack_kinds: Vec<NativeKind>,
    pub module_bindings_data: Vec<u64>,
    pub module_bindings_kinds: Vec<NativeKind>,
    pub reason: CaptureReason,
}

A snapshot of VM state at a point in time.

WB2.5 retain-on-read. stack_data / module_bindings_data carry raw 8-byte slot bits; stack_kinds / module_bindings_kinds carry the parallel-track NativeKind interpretation per slot (ADR-006 §2.7.7). The manual Clone bumps each element’s refcount via clone_with_kind, keyed on the parallel-track kind; Drop releases via drop_with_kind so replaying / evicting a snapshot is refcount-neutral.

Fields

index: u64

Monotonically increasing snapshot index.

ip: usize

Instruction pointer at time of capture.

sp: usize

Stack pointer at time of capture.

call_depth: usize

Call stack depth at time of capture.

function_id: Option<u16>

Function being executed (if known).

function_name: Option<String>

Function name (if known).

instruction_count: u64

Instruction count at time of capture.

stack_data: Vec<u64>

Raw 8-byte slot bits for the live stack at capture time (post-§2.7.7 lockstep with stack_kinds).

stack_kinds: Vec<NativeKind>

Parallel NativeKind track for stack_data. Invariant: stack_data.len() == stack_kinds.len().

module_bindings_data: Vec<u64>

Raw 8-byte slot bits for module bindings at capture time (post-§2.7.7 lockstep with module_bindings_kinds).

module_bindings_kinds: Vec<NativeKind>

Parallel NativeKind track for module_bindings_data. Invariant: module_bindings_data.len() == module_bindings_kinds.len().

reason: CaptureReason

Capture reason for display/debugging.

Trait Implementations

impl Clone for VmSnapshot

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VmSnapshot

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

Formats the value using the given formatter.

impl Drop for VmSnapshot

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

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

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.