Trait SaveToFile

pub trait SaveToFile {
    type Error;

    // Required method
    fn save_to_file<'life0, 'async_trait>(
        &'life0 self,
        filename: impl AsRef<Path> + Send + 'async_trait,
    ) -> Pin<Box<dyn Future<Output = Result<(), Self::Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait;
}

Required Associated Types

type Error

Required Methods

fn save_to_file<'life0, 'async_trait>( &'life0 self, filename: impl AsRef<Path> + Send + 'async_trait, ) -> Pin<Box<dyn Future<Output = Result<(), Self::Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl SaveToFile for String

type Error = SaveLoadError

fn save_to_file<'life0, 'async_trait>( &'life0 self, filename: impl AsRef<Path> + Send + 'async_trait, ) -> Pin<Box<dyn Future<Output = Result<(), <String as SaveToFile>::Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, String: 'async_trait,

impl<K, V> SaveToFile for HashMap<K, V>

where K: Serialize + DeserializeOwned + Eq + Hash + Send + Sync + 'static, V: Serialize + DeserializeOwned + Send + Sync + 'static,

A specialized SaveToFile/LoadFromFile impl for HashMap<K, V>, so you can avoid the universal blanket approach and thus not conflict with your macro-based impl_default_save_to_file_traits! expansions.

This requires that K,V: Serialize + DeserializeOwned. Also note that we require K: Eq + Hash. Then you can do:

let map: HashMap<String, MyStruct> = …; map.save_to_file(“some.json”).await?;

type Error = SaveLoadError

fn save_to_file<'life0, 'async_trait>( &'life0 self, filename: impl AsRef<Path> + Send + 'async_trait, ) -> Pin<Box<dyn Future<Output = Result<(), <HashMap<K, V> as SaveToFile>::Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, HashMap<K, V>: 'async_trait,

impl<T> SaveToFile for Vec<T>

where T: Serialize + DeserializeOwned + Send + Sync + 'static,

Implements SaveToFile for Vec<T>, writing its contents as JSON array, where T: Serialize + DeserializeOwned + Send + Sync + 'static.

type Error = SaveLoadError

fn save_to_file<'life0, 'async_trait>( &'life0 self, filename: impl AsRef<Path> + Send + 'async_trait, ) -> Pin<Box<dyn Future<Output = Result<(), <Vec<T> as SaveToFile>::Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, Vec<T>: 'async_trait,

Implementors

impl SaveToFile for BatchMetadata

type Error = BatchMetadataError