types

type Rangeable interface {
	Next() Rangeable
	Prev() Rangeable
	VType
}

type VType interface {

	// String returns the value as a string
	String() string

	// Value returns the value
	Value() interface{}

	// Type returns the name of the type as a string
	Type() string

	// Compare compares the value with another, -1, 0, 1 being less, equal and
	// greater. -2 can be used to show not equal, but not less or greater.
	Compare(VType) int

	// Copy returns a deep copy of the type
	Copy() VType
}