copyInto method Null safety

Vector4 copyInto(
  1. Vector4 arg
)

Copy this

Implementation

Vector4 copyInto(Vector4 arg) {
  final argStorage = arg._v4storage;
  argStorage[0] = _v4storage[0];
  argStorage[1] = _v4storage[1];
  argStorage[2] = _v4storage[2];
  argStorage[3] = _v4storage[3];
  return arg;
}