Struct ChangeLog 

pub struct ChangeLog { /* private fields */ }

Audit trail for tracking all changes to the dependency graph

Implementations

impl ChangeLog

pub fn new() -> Self

pub fn with_max_changelog_events(max: usize) -> Self

pub fn set_max_changelog_events(&mut self, max: Option<usize>)

pub fn record(&mut self, event: ChangeEvent)

pub fn record_with_meta(&mut self, event: ChangeEvent, meta: ChangeEventMeta)

Record an event with explicit metadata (used for replay/redo).

pub fn begin_compound(&mut self, description: String)

Begin a compound operation (multiple changes from single action)

pub fn end_compound(&mut self)

End a compound operation

pub fn events(&self) -> &[ChangeEvent]

pub fn patch_last_cell_event_old_state( &mut self, addr: CellRef, old_value: Option<LiteralValue>, old_formula: Option<ASTNode>, )

pub fn event_meta(&self, index: usize) -> Option<&ChangeEventMeta>

pub fn set_actor_id(&mut self, actor_id: Option<String>)

pub fn set_correlation_id(&mut self, correlation_id: Option<String>)

pub fn set_reason(&mut self, reason: Option<String>)

pub fn truncate(&mut self, len: usize)

Truncate log (and metadata) to len

pub fn clear(&mut self)

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn take_from(&mut self, index: usize) -> Vec<ChangeEvent>

Extract events from index to end

pub fn set_enabled(&mut self, enabled: bool)

Temporarily disable logging (for rollback operations)

pub fn compound_depth(&self) -> usize

Get current compound depth (for testing)

pub fn meta(&self, index: usize) -> Option<(u64, Option<u64>)>

Return (sequence_number, group_id) metadata for event index

pub fn last_group_indices(&self) -> Vec<usize>

Collect indices belonging to the last (innermost) complete group. Fallback: last single event.

Trait Implementations

impl ChangeLogger for ChangeLog

fn record(&mut self, event: ChangeEvent)

fn set_enabled(&mut self, enabled: bool)

fn begin_compound(&mut self, description: String)

fn end_compound(&mut self)

impl Debug for ChangeLog

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

Formats the value using the given formatter.

impl Default for ChangeLog

fn default() -> ChangeLog

Returns the “default value” for a type.