| import { Interface } from '../index.js' | |
| export default function compose(...ifaces: Interface[]): Interface { | |
| const allKeys = new Set<keyof Interface>() | |
| for (const iface of ifaces) { | |
| for (const key of Object.keys(iface)) { | |
| allKeys.add(key as keyof Interface) | |
| } | |
| } | |
| const composed: any = {} | |
| for (const key of allKeys) { | |
| if (key.startsWith('filter')) { | |
| composed[key] = async (items: any, ...args: any[]) => { | |
| for (const iface of ifaces) { | |
| const anyIface = iface as any | |
| if (anyIface[key]) { | |
| items = await anyIface[key](items, ...args) | |
| } | |
| } | |
| return items | |
| } | |
| } else { | |
| composed[key] = async (...args: any[]) => { | |
| for (const iface of ifaces) { | |
| const anyIface = iface as any | |
| if (anyIface[key]) { | |
| await anyIface[key](...args) | |
| } | |
| } | |
| } | |
| } | |
| } | |
| return composed | |
| } | |