export type TypedArrayConstructor =
    | Int8ArrayConstructor
    | Uint8ArrayConstructor
    | Uint8ClampedArrayConstructor
    | Int16ArrayConstructor
    | Uint16ArrayConstructor
    | Int32ArrayConstructor
    | Uint32ArrayConstructor
    | Float16ArrayConstructor // comment this line out, the error codes away showing that Float16ArrayConstructor is not compatible with other constructors
    | Float32ArrayConstructor
    | Float64ArrayConstructor;

export type TypedArray =
    | Int8Array
    | Uint8Array
    | Uint8ClampedArray
    | Int16Array
    | Uint16Array
    | Int32Array
    | Uint32Array
    | Float16Array
    | Float32Array
    | Float64Array;

export class TypedArrayViewGenerator {
    arrayBuffer: ArrayBuffer;
    byteOffset: number;

    constructor(sizeInBytes: number) {
        this.arrayBuffer = new ArrayBuffer(sizeInBytes);
        this.byteOffset = 0;
    }
    getView<T extends TypedArray>(Ctor: TypedArrayConstructor, numElements: number): T {
        // gets an error here because `Float16Array` is not following the
        // the same pattern as the other typed array views
        const view = new Ctor(this.arrayBuffer, this.byteOffset, numElements);
        this.byteOffset += view.byteLength;
        return view as T;
    }
}

export function getView<T extends TypedArray>(arrayBuffer: ArrayBuffer, Ctor: TypedArrayConstructor): T {
    // this gets an error too for the same reason
    const view = new Ctor(arrayBuffer);
    return view as T;
}