Struct TxMatchContext 

pub struct TxMatchContext {
    pub invoked_programs: HashSet<Address>,
    pub moves_tokens: bool,
    pub written_accounts: Vec<Address>,
    pub writes_via_unresolved_lookup: bool,
}

Per-transaction facts a DiscoveryFilter can inspect when deciding whether to match. Callers build this once per transaction and feed it to every registered filter; new variants add fields here rather than growing the DiscoveryFilter::matches signature.

Fields

invoked_programs: HashSet<Address>

Programs invoked by the transaction (top-level + CPI observed in logs).

moves_tokens: bool

Whether any token account’s balance changed.

written_accounts: Vec<Address>

Accounts the transaction may write, by the batcher’s writability rule: its static keys and the lookup-table addresses resolved for it.

writes_via_unresolved_lookup: bool

Whether it writes through a lookup table whose addresses did not resolve, so written_accounts can’t name them.