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| interface MainFuncAsync { | |
| (args: string[]): Promise<number|void> | |
| } | |
| class ProgramEntryPoint { | |
| static main: MainFuncAsync; | |
| } | |
| interface IProgramEntryPoint { | |
| new(): ProgramEntryPoint | |
| main: MainFuncAsync; | |
| } | |
| export function Main<T extends IProgramEntryPoint>(ctor: T) { | |
| const errorHandler = (error: Error & { exitCode?: number }) => { | |
| console.error(error); | |
| process.exit(error.exitCode); | |
| } | |
| const exitProcessHandler = (exitCode: number | void) => { | |
| process.exit(exitCode || 0); | |
| } | |
| ctor.main(process.argv) | |
| .then(exitProcessHandler) | |
| .catch(errorHandler) | |
| } |
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| import { Main } from "./Decorators" | |
| @Main | |
| export default class Program { | |
| static async main(args: string[]): Promise<number> { | |
| const [arg1, arg2, fail] = args; | |
| return fail ? 1 : 0; | |
| } | |
| } |
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