No signature match found for 'new (): XXX' within 'XXX'

I encountered an issue while using the following class and receiving a specific error within the for loop:

[ts] Argument of type 'Component' is not assignable to parameter of type 'ComponentType'. Type 'Component' provides no match for the signature 'new (): Component'

The structure of this class is as follows:

class Prefab {

    public components: Component[] = [];

    public static make(object: Prefab): GameObject {
        let go = new GameObject;
        for (let comp of object.components) {
            // The error occurs here:
            go.addComponent(comp);
        }
        return go;
    }

}

Additionally, I have defined an interface for my component class:

interface ComponentType<T extends Component> {
    new (): T;
}

Below is the definition for addComponent:

addComponent<T extends Component>(type: ComponentType<T>): T;

How can I address this issue? Any suggestions would be appreciated.

Answer №1

When using the `for` loop, the variable comp is referencing the type `Component`.

for (let comp of object.components) {

However, your `addComponent` method requires the type `ComponentType<T>`

addComponent<T extends Component>(type: ComponentType<T>): T;

The types `Component` and `ComponentType<T>` are not the same which is causing the error to occur.

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