forked from TrueCloudLab/neoneo-go
32 lines
1.3 KiB
Go
32 lines
1.3 KiB
Go
/*
|
|
Package enumerator provides functions to work with enumerators.
|
|
*/
|
|
package enumerator
|
|
|
|
// Enumerator represents NEO enumerator type, it's an opaque data structure
|
|
// that can be used with functions from this package. It's similar to more
|
|
// widely used Iterator (see `iterator` package), but ranging over arrays
|
|
// or structures that have values with no explicit keys.
|
|
type Enumerator struct{}
|
|
|
|
// Create creates a new enumerator from the given items (slice, structure, byte
|
|
// array and integer or boolean converted to byte array). New enumerator points
|
|
// at index -1 of its items, so the user of it has to advance it first with Next.
|
|
// This function uses `System.Enumerator.Create` syscall.
|
|
func Create(items interface{}) Enumerator {
|
|
return Enumerator{}
|
|
}
|
|
|
|
// Next moves position of the given enumerator by one and returns a bool that
|
|
// tells whether there is a new value present in this new position. If it is,
|
|
// you can use Value to get it, if not then there are no more values in this
|
|
// enumerator. This function uses `System.Enumerator.Next` syscall.
|
|
func Next(e Enumerator) bool {
|
|
return true
|
|
}
|
|
|
|
// Value returns current enumerator's item value, it's only valid to call it
|
|
// after Next returning true. This function uses `System.Enumerator.Value` syscall.
|
|
func Value(e Enumerator) interface{} {
|
|
return nil
|
|
}
|