// Multi-Chain Operations Example
// This demonstrates the comprehensive chain namespace functions built into dist_agent_lang
@trust("hybrid")
@chain("ethereum","polygon","bsc","arbitrum")
@advanced_security("monitor")
@secure
@limit(15000)
service MultiChainKEYS {
// Chain-specific contract addresses
contract_addresses: map<int, string>;
active_chain: int = 1; // Default to Ethereum
// Cross-chain state
cross_chain_balances: map<string, map<int, int>>;
// Events
event ChainDeployed(chain_id: int, address: string);
event GasEstimated(chain_id: int, operation: string, gas: int);
event BalanceChecked(chain_id: int, address: string, balance: int);
// Deploy KEYS token to multiple chains
@txn
fn deploy_to_all_chains() -> bool {
let chains = [1, 137, 56, 42161]; // Ethereum, Polygon, BSC, Arbitrum
for chain_id in chains {
let address = chain::deploy(
chain_id,
"KEYS_Token",
{
"name": "KEYS Token",
"symbol": "KEYS",
"total_supply": "120000000000000000000000000"
}
);
if (address != "" ) {
self.contract_addresses[chain_id] = address;
self.emit(ChainDeployed(chain_id, address));
log::info("deploy", "formatted string");
} else {
log::error("deploy", "formatted string");
}
}
return true;
}
// Deploy to specific chain
@txn
fn deploy_to_chain(chain_id: int) -> string {
let address = chain::deploy(
chain_id,
"KEYS_Token",
{
"name": "KEYS Token",
"symbol": "KEYS",
"total_supply": "120000000000000000000000000"
}
);
if (address != "" ) {
self.contract_addresses[chain_id] = address;
log::info("deploy", "formatted string");
}
return address;
}
// Get gas estimates for different operations across chains
fn estimate_gas_costs() -> map<string, map<int, int>> {
let chains = [1, 137, 56, 42161];
let operations = ["transfer", "mint", "burn", "approve", "deploy"];
let mut gas_costs = {};
for operation in operations {
gas_costs[operation] = {};
for chain_id in chains {
let gas = chain::estimate_gas(chain_id, operation);
gas_costs[operation][chain_id] = gas;
self.emit(GasEstimated(chain_id, operation, gas));
}
}
return gas_costs;
}
// Get current gas prices for all chains
fn get_all_gas_prices() -> map<int, float> {
let chains = [1, 137, 56, 42161];
let mut gas_prices = {};
for chain_id in chains {
let price = chain::get_gas_price(chain_id);
gas_prices[chain_id] = price;
log::info("gas", "formatted string");
}
return gas_prices;
}
// Check balance across multiple chains
fn check_balances(address: string) -> map<int, int> {
let chains = [1, 137, 56, 42161];
let mut balances = {};
for chain_id in chains {
let balance = chain::get_balance(chain_id, address);
balances[chain_id] = balance;
self.emit(BalanceChecked(chain_id, address, balance));
log::info("balance", "formatted string");
}
return balances;
}
// Call contract function on specific chain
@txn
fn call_contract_function(
chain_id: int,
function_name: string,
args: map<string, string>
) -> string {
let contract_address = self.contract_addresses[chain_id];
if (contract_address == "" ) {
log::error("call", "formatted string");
return "error: no contract deployed";
}
let result = chain::call(chain_id, contract_address, function_name, args);
log::info("call", "formatted string");
return result;
}
// Get transaction status
fn check_transaction_status(chain_id: int, tx_hash: string) -> string {
let status = chain::get_transaction_status(chain_id, tx_hash);
log::info("txn", "formatted string");
return status;
}
// Get block timestamp for a chain
fn get_chain_timestamp(chain_id: int) -> int {
let timestamp = chain::get_block_timestamp(chain_id);
log::info("timestamp", "formatted string");
return timestamp;
}
// Mint asset on specific chain
@txn
fn mint_asset_on_chain(chain_id: int, name: string, metadata: map<string, string>) -> int {
let asset_id = chain::mint(name, metadata);
log::info("mint", "formatted string");
return asset_id;
}
// Update asset
@txn
fn update_asset(asset_id: int, updates: map<string, string>) -> bool {
let success = chain::update(asset_id, updates);
if (success ) {
log::info("update", "formatted string");
} else {
log::error("update", "formatted string");
}
return success;
}
// Get asset information
fn get_asset_info(asset_id: int) -> string {
let asset_info = chain::get(asset_id);
log::info("asset", "formatted string");
return "formatted string";
}
// Check if (asset exists
fn check_asset_exists(asset_id: int) -> bool {
let exists = chain::exists(asset_id);
log::info("asset", "formatted string");
return exists;
}
// Find cheapest chain for operation
fn find_cheapest_chain(operation: string) -> int {
let chains = [1, 137, 56, 42161];
let mut cheapest_chain = 1;
let mut lowest_cost = 999999999;
for chain_id in chains {
let gas = chain::estimate_gas(chain_id, operation);
let gas_price = chain::get_gas_price(chain_id);
let total_cost = gas * gas_price;
if (total_cost < lowest_cost ) {
lowest_cost = total_cost;
cheapest_chain = chain_id;
}
}
log::info("cost", "Cheapest chain found");
return cheapest_chain;
}
// Find fastest chain
fn find_fastest_chain() -> int {
// Arbitrum is typically fastest for confirmations
return 42161;
}
// Find most secure chain
fn find_most_secure_chain() -> int {
// Ethereum mainnet is typically most secure
return 1;
}
// Switch active chain
@txn
fn switch_active_chain(chain_id: int) -> bool {
let old_chain = self.active_chain;
self.active_chain = chain_id;
log::info("chain", "formatted string");
return true;
}
// Get current active chain info
fn get_active_chain_info() -> string {
let timestamp = chain::get_block_timestamp(self.active_chain);
let gas_price = chain::get_gas_price(self.active_chain);
return "Active chain info";
}
}
// Example usage
fn main() {
let keys = MultiChainKEYS::new();
// Deploy to all chains
keys.deploy_to_all_chains();
// Get gas estimates
let gas_costs = keys.estimate_gas_costs();
log::info("main", "formatted string");
// Get gas prices
let gas_prices = keys.get_all_gas_prices();
log::info("main", "formatted string");
// Check balances
let balances = keys.check_balances("0x1234567890123456789012345678901234567890");
log::info("main", "formatted string");
// Find cheapest chain for transfer
let cheapest = keys.find_cheapest_chain("transfer");
log::info("main", "formatted string");
// Switch to cheapest chain
keys.switch_active_chain(cheapest);
// Get active chain info
let chain_info = keys.get_active_chain_info();
log::info("main", "formatted string");
// Mint an asset
let asset_id = keys.mint_asset_on_chain(1, "MyNFT", {
"description": "A unique NFT",
"image": "ipfs://..."
});
// Update the asset
keys.update_asset(asset_id, {
"description": "Updated description"
});
// Get asset info
let asset_info = keys.get_asset_info(asset_id);
log::info("main", "formatted string");
// Check if (asset exists
let exists = keys.check_asset_exists(asset_id);
log::info("main", "formatted string");
log::info("main", "Multi-chain operations completed successfully!");
}