use impossible enum type

This commit is contained in:
Alex Auvolat 2023-01-03 16:04:06 +01:00
parent c106304b9c
commit 1d5bdc17a4
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@ -58,7 +58,7 @@ impl<T: InitialFormat> Migrate for T {
/// Internal type used by InitialFormat, not meant for general use. /// Internal type used by InitialFormat, not meant for general use.
#[derive(Serialize, Deserialize)] #[derive(Serialize, Deserialize)]
pub struct NoPrevious; pub enum NoPrevious {}
impl Migrate for NoPrevious { impl Migrate for NoPrevious {
type Previous = NoPrevious; type Previous = NoPrevious;