Struct CrosschainTokenManager 

pub struct CrosschainTokenManager { /* private fields */ }

Manages ERC-7802 crosschainMint/crosschainBurn operations.

Bridges must be explicitly authorized before they can mint or burn tokens. Per-transaction and daily limits are enforced to bound risk.

Implementations

impl CrosschainTokenManager

pub fn new(tnzo_token: Arc<TnzoToken>, registry: Arc<TokenRegistry>) -> Self

Creates a new manager backed by the given token and registry instances.

pub fn authorize_bridge( &self, bridge_address: [u8; 20], name: String, authorized_tokens: Vec<TokenId>, max_mint_per_tx: Option<u128>, max_burn_per_tx: Option<u128>, daily_mint_limit: Option<u128>, daily_burn_limit: Option<u128>, ) -> Result<()>

Authorizes a bridge to call crosschainMint/crosschainBurn.

pub fn revoke_bridge(&self, bridge_address: &[u8; 20]) -> Result<()>

Revokes a bridge’s authorization. In-flight operations that already passed the authorization check will still complete, but new calls will be rejected.

pub fn update_bridge_limits( &self, bridge_address: &[u8; 20], max_mint_per_tx: Option<u128>, max_burn_per_tx: Option<u128>, daily_mint_limit: Option<u128>, daily_burn_limit: Option<u128>, ) -> Result<()>

Updates the per-tx and daily limits for an authorized bridge.

pub fn is_bridge_authorized(&self, bridge_address: &[u8; 20]) -> bool

Returns true if the bridge is authorized and enabled.

pub fn get_bridge_info(&self, bridge_address: &[u8; 20]) -> Option<BridgeInfo>

Returns a serializable snapshot of the bridge’s authorization record.

pub fn resolve_authorized_tokens( &self, bridge_address: &[u8; 20], ) -> Vec<TokenDefinition>

Resolves a bridge’s authorized_tokens set into full [TokenDefinition] records via the unified token registry.

Tokens that no longer exist in the registry are silently skipped, allowing operators to detect orphaned authorizations by length comparison against the bridge’s raw authorized_tokens vector.

pub fn list_authorized_bridges(&self) -> Vec<BridgeInfo>

Lists all currently authorized bridges.

pub fn crosschain_mint( &self, bridge: [u8; 20], to: Address, amount: u128, sender: Vec<u8>, ) -> Result<CrosschainMintEvent>

Mints tokens on this chain as part of a cross-chain transfer.

The bridge must be authorized and within its per-tx and daily limits. Tokens are minted via TnzoToken::mint() using the treasury address as the authorized caller.

Arguments

• bridge - 20-byte address of the calling bridge.
• to - Recipient address on this chain.
• amount - Amount to mint (smallest unit, 18 decimals).
• sender - Opaque sender identifier on the source chain.

pub fn crosschain_burn( &self, bridge: [u8; 20], from: Address, amount: u128, sender: Vec<u8>, ) -> Result<CrosschainBurnEvent>

Burns tokens on this chain as part of a cross-chain transfer.

The bridge must be authorized and within its per-tx and daily limits. Tokens are burned via TnzoToken::burn().

Arguments

• bridge - 20-byte address of the calling bridge.
• from - Address whose tokens are burned.
• amount - Amount to burn (smallest unit, 18 decimals).
• sender - Opaque destination identifier on the target chain.

pub fn get_mint_events(&self) -> Vec<CrosschainMintEvent>

Returns all recorded mint events, newest first.

pub fn get_burn_events(&self) -> Vec<CrosschainBurnEvent>

Returns all recorded burn events, newest first.

pub fn get_mint_event(&self, nonce: u64) -> Option<CrosschainMintEvent>

Returns a specific mint event by nonce.

pub fn get_burn_event(&self, nonce: u64) -> Option<CrosschainBurnEvent>

Returns a specific burn event by nonce.