Method ArrayIndex

value.go:183–198

If the passed-in element is an array, attempt to get the idx'th element, and return its type and raw representation. Returns an error if the passed-in element is not an array or if idx is outside the array bounds.

(idx int64)

// error if the passed-in element is not an array or if idx is
// outside the array bounds.
func (v Value) ArrayIndex(idx int64) (Value, error) {
	vec, ok := v.Type().(*TypeArray)
	if !ok {
		return Null, ErrNotArray
	}
	if idx < 0 {
		return Null, ErrIndex
	}
	for i, it := 0, v.ContainerIter(); !it.Done(); i++ {
		bytes := it.Next()
		if i == int(idx) {
			return NewValue(vec.Type, bytes), nil
		}
	}
	return Null, ErrIndex
}

// Elements returns an array of Values for the given container type.
// Returns an error if the element is not an array or set.