graphql-modules/esm/di/providers.js

Create reusable, maintainable, testable and extendable GraphQL modules

import { readInjectableMetadata } from './metadata';
export const Type = Function;
/// @ts-ignore
export class InjectionToken {
    constructor(_desc) {
        this._desc = _desc;
    }
    toString() {
        return `InjectionToken ${this._desc}`;
    }
}
export function isToken(v) {
    return v && v instanceof InjectionToken;
}
export function isType(v) {
    return typeof v === 'function' && v !== Object;
}
export var Scope;
(function (Scope) {
    Scope[Scope["Singleton"] = 0] = "Singleton";
    Scope[Scope["Operation"] = 1] = "Operation";
})(Scope || (Scope = {}));
export function onlySingletonProviders(providers = []) {
    return providers.filter((provider) => {
        if (isType(provider)) {
            const { options } = readInjectableMetadata(provider, true);
            return (options === null || options === void 0 ? void 0 : options.scope) !== Scope.Operation;
        }
        else {
            return provider.scope !== Scope.Operation;
        }
    });
}
export function onlyOperationProviders(providers = []) {
    return providers.filter((provider) => {
        if (isType(provider)) {
            const { options } = readInjectableMetadata(provider, true);
            return (options === null || options === void 0 ? void 0 : options.scope) === Scope.Operation;
        }
        else {
            return provider.scope === Scope.Operation;
        }
    });
}
export function isClassProvider(provider) {
    return typeof provider.useClass !== 'undefined';
}
export function isFactoryProvider(provider) {
    return typeof provider.useFactory !== 'undefined';
}