Comparable Validators for Go

Comparable() accepts any type satisfying Go’s comparable constraint, including strings, numbers, pointers, and structs whose fields are all comparable. It does not provide ordering rules.

type Point struct {
  X int
  Y int
}

point := Point{X: 1, Y: 2}

v.Is(v.Comparable(point, "point").EqualTo(Point{X: 1, Y: 2}))
v.Is(v.Comparable(point, "point").InSlice([]Point{
  {X: 0, Y: 0},
  {X: 1, Y: 2},
}))
v.Is(v.Comparable(point, "point").Passing(func(p Point) bool {
  return p.X >= 0 && p.Y >= 0
}))

For ordered numeric or string comparisons, use the corresponding numeric or string validator.

Pointer variant

ComparableP() validates a pointer to a comparable value. Its callback receives the pointer, and it also provides Nil().

var point *Point
v.Is(v.ComparableP(point, "point").Nil())