generics/ptr.go

24 lines
441 B
Go
Raw Normal View History

2023-07-21 23:05:40 +02:00
package generics
2024-05-28 00:20:32 +02:00
// Ptr returns pointer for given value.
2023-07-21 23:05:40 +02:00
func Ptr[T any](val T) *T {
return &val
}
2024-05-28 00:20:32 +02:00
// Val returns value of given pointer or default value if pointer is nil.
2023-07-21 23:05:40 +02:00
func Val[T any](ptr *T) T {
var val T
if ptr != nil {
val = *ptr
}
return val
}
2024-05-28 00:20:32 +02:00
// Fallback returns value of given pointer or fallback value if pointer is nil.
2023-07-21 23:05:40 +02:00
func Fallback[T any](ptr *T, fallback T) T {
if ptr != nil {
return *ptr
}
return fallback
}