Error: Missing required @inject or @multiInject annotation in: argument 0 in class Ninja

[cloudhx]

Expected Behavior

InversifyJS allows your classes to have a direct dependency on other classes. When doing so you will need to use the @Injectable decorator but you will not be required to use the @Inject decorator.

Current Behavior

When following the code here: https://github.com/inversify/InversifyJS/blob/master/wiki/classes_as_id.md, class that has direct dependencies on other classes cannot be create, error occurred:

Error: Missing required @inject or @multiInject annotation in: argument 0 in class Ninja.

This error is mentioned in the same document as part of the Known Limitation: Classes as identifiers and circular dependencies, but without any circular dependencies it happens as well.

Possible Solution

Using @Inject decorator on constructor parameters makes it work.

Steps to Reproduce (for bugs)

1. Create a node project using npm init -y
2. Install typescript and correctly configure it using npx tsc --init and inversify documentation
3. Install inversify and reflect-metadata
4. Create a typescript test file with the following code

import "reflect-metadata";
import { Container, injectable, inject } from "inversify";

@injectable()
class Katana {
    public hit() {
        return "cut!";
    }
}

@injectable()
class Shuriken {
    public throw() {
        return "hit!";
    }
}

@injectable()
class Ninja {

    private _katana: Katana;
    private _shuriken: Shuriken;

    public constructor(katana: Katana, shuriken: Shuriken) {
        this._katana = katana;
        this._shuriken = shuriken;
    }

    public fight() { return this._katana.hit(); };
    public sneak() { return this._shuriken.throw(); };

}

var container = new Container();
container.bind<Ninja>(Ninja).to(Ninja);
container.bind<Katana>(Katana).to(Katana);
container.bind<Shuriken>(Shuriken).to(Shuriken);

var ninja = container.get<Ninja>(Ninja);
console.log(ninja.fight());

5. Run npx tsx your test file

Context

Don't know what's going wrong, basically using the example from here: https://github.com/inversify/InversifyJS/blob/master/wiki/classes_as_id.md, but doesn't work.

Your Environment

• Version used: [email protected] [email protected]
• Environment name and version (e.g. Chrome 39, node.js 5.4): node v20.17.0
• Operating System and version (desktop or mobile): MacBook
• Link to your project:

Stack trace

Error: Missing required @Inject or @multiInject annotation in: argument 0 in class Ninja.
at getConstructorArgsAsTarget (/Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/planning/reflection_utils.js:78:19)
at getConstructorArgsAsTargets (/Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/planning/reflection_utils.js:90:22)
at getTargets (/Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/planning/reflection_utils.js:56:30)
at getDependencies (/Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/planning/reflection_utils.js:41:12)
at /Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/planning/planner.js:124:71
at Array.forEach ()
at _createSubRequests (/Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/planning/planner.js:112:20)
at plan (/Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/planning/planner.js:154:9)
at /Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/container/container.js:626:46
at Container._get (/Users/han/Documents/workspaces/temp/inversify-test/node_modules/inversify/lib/container/container.js:596:38)