51 lines
2.0 KiB
TypeScript
51 lines
2.0 KiB
TypeScript
import { getAddress } from "./address.js";
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import { logger } from "./logger.js";
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import type { Addressable, NameResolver } from "./types.js";
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export function isAddressable(value: any): value is Addressable {
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return (value && typeof(value.getAddress) === "function");
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}
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export function isAddress(value: any): boolean {
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try {
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getAddress(value);
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return true;
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} catch (error) { }
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return false;
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}
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// Resolves an Ethereum address, ENS name or Addressable object,
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// throwing if the result is null; an explicit null returns null
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//export async function resolveAddress(target?: null, resolver?: null | NameResolver): Promise<null>;
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//export async function resolveAddress(target: string | Addressable, resolver?: null | NameResolver): Promise<string>;
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//export async function resolveAddress(target: null | undefined | string | Addressable, resolver?: null | NameResolver) {
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export async function resolveAddress(target: string | Addressable, resolver?: null | NameResolver) {
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//if (target == null) { return null; }
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if (typeof(target) === "string") {
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if (target.match(/^0x[0-9a-f]{40}$/i)) { return getAddress(target); }
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if (resolver == null) {
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return logger.throwError("ENS resolution requires a provider", "UNSUPPORTED_OPERATION", {
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operation: "resolveName",
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});
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}
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const result = await resolver.resolveName(target);
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if (result == null || result === "0x0000000000000000000000000000000000000000") {
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return logger.throwError("unconfigured name", "UNCONFIGURED_NAME", { value: target });
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}
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return getAddress(result);
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} else if (isAddressable(target)) {
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const result = await target.getAddress();
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if (result == null) {
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logger.throwArgumentError("addressable resolved to null", "target", target);
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}
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return getAddress(result);
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}
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return logger.throwArgumentError("unsupported addressable value", "target", target);
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}
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