Repository navigation
Use generic optional type instead of pointers for changeset #3
Description
Bulding pointers to pointers can be tricky and need some extra lines of code.
We could use a generic Optional type behind some command flag:
type Optional[T any] struct {
Valid bool
Value T
}
func NewValidOptional[T any](value T) Optional[T] {
return Optional[T]{
Valid: true,
Value: value,
}
}
func NewEmptyOptional[T any]() Optional[T] {
return Optional[T]{
Valid: false,
}
}
func init() {
v1 := NewValidOptional(uuid.Nil)
v2 := NewEmptyOptional[uuid.UUID]()
}
Activity
hlubek commentedon Apr 12, 2023
Idea: generate chainable API (e.g.
WithID(id uuid.UUID)) that takes care of taking the pointer.If a field is a pointer value (e.g.
*time.Time), we could generate aWithMyFieldValue(value time.Time)method that sets the pointer to a pointer to atime.Timein the changeset.