TorusGeometry can accept negative arc

I'd like to write
not:
var torus = new THREE.TorusGeometry(1, 1, 8, 6, Math.PI);
torus.quaternion.setFromAxisAngle(new THREE.Vector3(0, 0, 1), Math.PI);
but:
var torus = new THREE.TorusGeometry(1, 1, 8, 6, -Math.PI);