ethers.js/lib.esm/address/checks.js
2022-11-09 02:57:02 -05:00

40 lines
1.5 KiB
JavaScript

import { assert, assertArgument } from "../utils/index.js";
import { getAddress } from "./address.js";
export function isAddressable(value) {
return (value && typeof (value.getAddress) === "function");
}
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 an Ethereum address, ENS name or Addressable object,
// throwing if the result is null.
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 (typeof (target.then) === "function") {
return checkAddress(target, target);
}
assertArgument(false, "unsupported addressable value", "target", target);
}
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