Fuzion • Idioms • Idiom # 268: User-defined operator

Idiom # 268: User-defined operator

Code

vector (x, y, z f64) is

  infix ⨯ (other vector) vector =>
    vector
      (vector.this.y*other.z - vector.this.z*other.y)
      (vector.this.z*other.x - vector.this.x*other.z)
      (vector.this.x*other.y - vector.this.y*other.x)

1
2
3
4
5
6
7
8
vector (x, y, z f64) is
  infix ⨯ (other vector) vector =>
    vector
      (vector.this.y*other.z - vector.this.z*other.y)
      (vector.this.z*other.x - vector.this.x*other.z)
      (vector.this.x*other.y - vector.this.y*other.x)
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

What are effects?

Running Example

ex268 is

  vector (x, y, z f64) is

    infix ⨯ (other vector) vector =>
      vector
        (vector.this.y*other.z - vector.this.z*other.y)
        (vector.this.z*other.x - vector.this.x*other.z)
        (vector.this.x*other.y - vector.this.y*other.x)

    redef as_string =>
      "($x, $y, $z)"

  a := vector 1 0 0
  b := vector 0 1 0

  say a⨯b

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
ex268 is
  vector (x, y, z f64) is
    infix ⨯ (other vector) vector =>
      vector
        (vector.this.y*other.z - vector.this.z*other.y)
        (vector.this.z*other.x - vector.this.x*other.z)
        (vector.this.x*other.y - vector.this.y*other.x)
    redef as_string =>
      "($x, $y, $z)"
  a := vector 1 0 0
  b := vector 0 1 0
  say a⨯b
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

What are effects?

last changed: 2024-07-01

next: NYI: Idiom # 269: Enum to String