David Rotermund
49fe13eb4a
Some checks are pending
Integration tests for the release process / release-simulation (push) Waiting to run
45 lines
667 B
Go
45 lines
667 B
Go
// Copyright 2024 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package optional
|
|
|
|
type Option[T any] []T
|
|
|
|
func None[T any]() Option[T] {
|
|
return nil
|
|
}
|
|
|
|
func Some[T any](v T) Option[T] {
|
|
return Option[T]{v}
|
|
}
|
|
|
|
func FromPtr[T any](v *T) Option[T] {
|
|
if v == nil {
|
|
return None[T]()
|
|
}
|
|
return Some(*v)
|
|
}
|
|
|
|
func FromNonDefault[T comparable](v T) Option[T] {
|
|
var zero T
|
|
if v == zero {
|
|
return None[T]()
|
|
}
|
|
return Some(v)
|
|
}
|
|
|
|
func (o Option[T]) Has() bool {
|
|
return o != nil
|
|
}
|
|
|
|
func (o Option[T]) Value() T {
|
|
var zero T
|
|
return o.ValueOrDefault(zero)
|
|
}
|
|
|
|
func (o Option[T]) ValueOrDefault(v T) T {
|
|
if o.Has() {
|
|
return o[0]
|
|
}
|
|
return v
|
|
}
|