Haxe abstract types

abstract UInt8(Int) to Int {
  private inline function new(a:Int) {
    this = a;
  }
  static public inline function safe(a:Int):UInt8 {
    return new UInt8(a&0xFF);
  }
  static public inline function unsafe(a:Int):UInt8 {
    return new UInt8(a);
  }
  @:from static public inline function fromInt(a:Int):UInt8 {
    return safe(a);
  }
  @:op(A+B) static public inline function add_UInt8_Int(a:UInt8,b:Int):Int {
    return a+b;
  }
  @:op(A+B) static public inline function add_UInt8_UInt8(a:UInt8,b:UInt8):UInt8 {
    return (a+b)&0xFF;
  }
  @:op(A>B) static public inline function greater_UInt8_UInt8(a:UInt8,b:UInt8):Bool {
    return a>b;
  }
  @:op(A<B) static public inline function lesser_UInt8_UInt8(a:UInt8,b:UInt8):Bool {
    return a<b;
  }
}

abstract UInt16(Int) to Int {
  private inline function new(a:Int) {
    this = a;
  }
  static public inline function safe(a:Int):UInt16 {
    return new UInt16(a&0xFFFF);
  }
  static public inline function unsafe(a:Int):UInt16 {
    return new UInt16(a);
  }
  @:from static public inline function fromInt(a:Int):UInt16 {
    return safe(a);
  }
  @:op(A+B) static public inline function add_UInt16_Int(a:UInt16,b:Int):Int {
    return a+b;
  }
  @:op(A+B) static public inline function add_UInt16_UInt16(a:UInt16,b:UInt16):UInt16 {
    return (a+b)&0xFFFF;
  }
  @:op(A>B) static public inline function greater_UInt16_UInt16(a:UInt16,b:UInt16):Bool {
    return a>b;
  }
  @:op(A<B) static public inline function lesser_UInt16_UInt16(a:UInt16,b:UInt16):Bool {
    return a<b;
  }
}

abstract UInt32(Int) to Int {
  private inline function new(a:Int) {
    this = a;
  }
  static public inline function safe(a:Int):UInt32 {
    return new UInt32(a);
  }
  static public inline function unsafe(a:Int):UInt32 {
    return new UInt32(a);
  }
  @:from static public inline function fromInt(a:Int):UInt32 {
    return safe(a);
  }
}

abstract UInt64(Float) to Float {
  private inline function new(a:Float) {
    this = a;
  }
  static public inline function safe(a:Float):UInt64 {
    return new UInt64(a);
  }
  static public inline function unsafe(a:Float):UInt64 {
    return new UInt64(a);
  }
  @:from static public inline function fromFloat(a:Float):UInt64 {
    return safe(a);
  }
}