graphql-modules/esm/di/metadata.js

Create reusable, maintainable, testable and extendable GraphQL modules

import { noInjectableError } from './errors';
export const INJECTABLE = Symbol('di:injectable');
export function readInjectableMetadata(type, throwOnMissing) {
    const meta = type[INJECTABLE];
    if (!meta && throwOnMissing) {
        throw noInjectableError(type);
    }
    return meta;
}
export function ensureInjectableMetadata(type) {
    if (!readInjectableMetadata(type)) {
        const meta = {
            params: [],
        };
        type[INJECTABLE] = meta;
    }
}