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