Struct SubgoalRegistry 

pub struct SubgoalRegistry {
    pub subgoals: Vec<Subgoal>,
    pub msg_to_subgoal: HashMap<usize, SubgoalId>,
    /* private fields */
}

In-memory registry of all subgoals in the current session.

Not persisted across restarts — subgoal state is transient session data.

Fields

subgoals: Vec<Subgoal>

msg_to_subgoal: HashMap<usize, SubgoalId>

Maps message index → subgoal ID for fast lookup during compaction.

Implementations

impl SubgoalRegistry

pub fn push_active( &mut self, description: String, start_msg_index: usize, ) -> SubgoalId

Register a new active subgoal starting at the given message index.

Auto-completes any existing Active subgoal before creating the new one.

pub fn complete_active(&mut self, end_msg_index: usize)

Mark the current active subgoal as completed and assign an end boundary.

pub fn extend_active(&mut self, new_end: usize)

Extend the active subgoal to cover new messages up to new_end.

pub fn tag_range(&mut self, start: usize, end: usize, id: SubgoalId)

Tag messages in range [start, end] with the given subgoal ID.

pub fn subgoal_state(&self, msg_index: usize) -> Option<SubgoalState>

Get the subgoal state for a given message index.

pub fn active_subgoal(&self) -> Option<&Subgoal>

Get the current active subgoal (for debug output and TUI metrics).

pub fn rebuild_after_compaction( &mut self, messages: &[Message], old_compact_end: usize, )

Rebuild the registry after compaction.

When old_compact_end == 0, repairs shifted indices without dropping subgoals. When old_compact_end > 0, drops subgoals whose entire span was drained.

Trait Implementations

impl Debug for SubgoalRegistry

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

Formats the value using the given formatter.

impl Default for SubgoalRegistry

fn default() -> SubgoalRegistry

Returns the “default value” for a type.