Class ThrowingReadable

packages/alphatab/src/io/IReadable.ts:76–121

 * @internal
 */
export class ThrowingReadable implements IReadable {
    private _readable: IReadable;
    public constructor(readable: IReadable) {
        this._readable = readable;
    }
    public get position(): number {
        return this._readable.position;
    }

    public set position(value: number) {
        this._readable.position = value;
    }

    public get length(): number {
        return this._readable.length;
    }

    public reset(): void {
        this._readable.reset();
    }

    public skip(offset: number): void {
        this._readable.skip(offset);
    }

    private _requireBytes(bytes: number) {
        const remaining = this.length - this.position;
        if (remaining < bytes) {
            throw new EndOfReaderError();
        }
    }

    public readByte(): number {
        this._requireBytes(1);
        return this._readable.readByte();
    }

    public read(buffer: Uint8Array, offset: number, count: number): number {
        this._requireBytes(count);
        return this._readable.read(buffer, offset, count);
    }

    public readAll(): Uint8Array {
        return this._readable.readAll();
    }
}