* Primitive Types
   * Common
     * bool
     * char
     * int (= int32)
     * uint (= uint32)
     * float (= float64)
     * decimal
     * number (= decimal, change with -number: option)
   * Explicit Sizes
     * int8, int16, int32, int64
     * uint8, uint16, uint32, uint64
 * Complex Types
   * Class
     * Single inheritance
     * Heap-based
   * Struct
     * No inheritance (other than Object)
     * Value-based
   * Interface
     * Multipile inheritance
     * No code implementation