@litert/decorator

Installation ​

npm install @litert/decorator

Quick Start ​

import { Methods, getMetadataContainer } from '@litert/decorator';

const myDecorator = Methods.withArgsCheck((_method, ctx) => {
    ctx.metadata!['myDecorator'] = true;
});

class DemoClass {
    @myDecorator
    public list(): void {}
}

What it is ​

@litert/decorator is a focused utility library for writing decorators in TypeScript. It does not provide application-level decorators such as routing, dependency injection, or validation decorators. Instead, it helps you build those decorators with less boilerplate around decorator signatures.

Why use it ​

Decorator callback signatures differ by transform and by target kind. A class decorator, method decorator, property decorator, static member decorator, and legacy parameter decorator all receive different argument shapes.

This library provides checked helpers for those shapes, normalized legacy contexts, composition utilities, modern metadata helpers, and a compatible layer for code that needs to support both TypeScript decorator transforms.

Entrypoints ​