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Текущая директория: /var/www/bitcardoApp/node_modules/ethers/lib.esm/address
Просмотр файла: checks.js
import { assert, assertArgument } from "../utils/index.js";
import { getAddress } from "./address.js";
/**
* Returns true if %%value%% is an object which implements the
* [[Addressable]] interface.
*
* @example:
* // Wallets and AbstractSigner sub-classes
* isAddressable(Wallet.createRandom())
* //_result:
*
* // Contracts
* contract = new Contract("dai.tokens.ethers.eth", [ ], provider)
* isAddressable(contract)
* //_result:
*/
export function isAddressable(value) {
return (value && typeof (value.getAddress) === "function");
}
/**
* Returns true if %%value%% is a valid address.
*
* @example:
* // Valid address
* isAddress("0x8ba1f109551bD432803012645Ac136ddd64DBA72")
* //_result:
*
* // Valid ICAP address
* isAddress("XE65GB6LDNXYOFTX0NSV3FUWKOWIXAMJK36")
* //_result:
*
* // Invalid checksum
* isAddress("0x8Ba1f109551bD432803012645Ac136ddd64DBa72")
* //_result:
*
* // Invalid ICAP checksum
* isAddress("0x8Ba1f109551bD432803012645Ac136ddd64DBA72")
* //_result:
*
* // Not an address (an ENS name requires a provided and an
* // asynchronous API to access)
* isAddress("ricmoo.eth")
* //_result:
*/
export function isAddress(value) {
try {
getAddress(value);
return true;
}
catch (error) { }
return false;
}
async function checkAddress(target, promise) {
const result = await promise;
if (result == null || result === "0x0000000000000000000000000000000000000000") {
assert(typeof (target) !== "string", "unconfigured name", "UNCONFIGURED_NAME", { value: target });
assertArgument(false, "invalid AddressLike value; did not resolve to a value address", "target", target);
}
return getAddress(result);
}
/**
* Resolves to an address for the %%target%%, which may be any
* supported address type, an [[Addressable]] or a Promise which
* resolves to an address.
*
* If an ENS name is provided, but that name has not been correctly
* configured a [[UnconfiguredNameError]] is thrown.
*
* @example:
* addr = "0x6B175474E89094C44Da98b954EedeAC495271d0F"
*
* // Addresses are return synchronously
* resolveAddress(addr, provider)
* //_result:
*
* // Address promises are resolved asynchronously
* resolveAddress(Promise.resolve(addr))
* //_result:
*
* // ENS names are resolved asynchronously
* resolveAddress("dai.tokens.ethers.eth", provider)
* //_result:
*
* // Addressable objects are resolved asynchronously
* contract = new Contract(addr, [ ])
* resolveAddress(contract, provider)
* //_result:
*
* // Unconfigured ENS names reject
* resolveAddress("nothing-here.ricmoo.eth", provider)
* //_error:
*
* // ENS names require a NameResolver object passed in
* // (notice the provider was omitted)
* resolveAddress("nothing-here.ricmoo.eth")
* //_error:
*/
export function resolveAddress(target, resolver) {
if (typeof (target) === "string") {
if (target.match(/^0x[0-9a-f]{40}$/i)) {
return getAddress(target);
}
assert(resolver != null, "ENS resolution requires a provider", "UNSUPPORTED_OPERATION", { operation: "resolveName" });
return checkAddress(target, resolver.resolveName(target));
}
else if (isAddressable(target)) {
return checkAddress(target, target.getAddress());
}
else if (target && typeof (target.then) === "function") {
return checkAddress(target, target);
}
assertArgument(false, "unsupported addressable value", "target", target);
}
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