Struct secret_toolkit_storage::append_store::AppendStoreMut

pub struct AppendStoreMut<'a, T, S, Ser = Bincode2> where
    T: Serialize + DeserializeOwned,
    S: Storage,
    Ser: Serde,  { /* private fields */ }

A type allowing both reads from and writes to the append store at a given storage location.

Implementations

impl<'a, T, S> AppendStoreMut<'a, T, S, Bincode2> where
    T: Serialize + DeserializeOwned,
    S: Storage, 

pub fn attach_or_create(storage: &'a mut S) -> StdResult<Self>

Try to use the provided storage as an AppendStore. If it doesn’t seem to be one, then initialize it as one.

Returns Err if the contents of the storage can not be parsed.

pub fn attach(storage: &'a mut S) -> Option<StdResult<Self>>

Try to use the provided storage as an AppendStore.

Returns None if the provided storage doesn’t seem like an AppendStore. Returns Err if the contents of the storage can not be parsed.

impl<'a, T, S, Ser> AppendStoreMut<'a, T, S, Ser> where
    T: Serialize + DeserializeOwned,
    S: Storage,
    Ser: Serde, 

pub fn attach_or_create_with_serialization(
    storage: &'a mut S,
    _ser: Ser
) -> StdResult<Self>

Try to use the provided storage as an AppendStore. If it doesn’t seem to be one, then initialize it as one. This method allows choosing the serialization format you want to use.

Returns Err if the contents of the storage can not be parsed.

pub fn attach_with_serialization(
    storage: &'a mut S,
    _ser: Ser
) -> Option<StdResult<Self>>

Try to use the provided storage as an AppendStore. This method allows choosing the serialization format you want to use.

Returns None if the provided storage doesn’t seem like an AppendStore. Returns Err if the contents of the storage can not be parsed.

pub fn len(&self) -> u32

pub fn is_empty(&self) -> bool

pub fn storage(&mut self) -> &mut S

pub fn readonly_storage(&self) -> &S

pub fn iter(&self) -> Iter<'_, T, S, Ser>

Return an iterator over the items in the collection

pub fn get_at(&self, pos: u32) -> StdResult<T>

Get the value stored at a given position.

Errors

Will return an error if pos is out of bounds or if an item is not found.

pub fn set_at(&mut self, pos: u32, item: &T) -> StdResult<()>

Set the value of the item stored at a given position.

Errors

Will return an error if the position is out of bounds

pub fn push(&mut self, item: &T) -> StdResult<()>

Append an item to the end of the collection.

This operation has a constant cost.

pub fn pop(&mut self) -> StdResult<T>

Pop the last item off the collection

pub fn clear(&mut self)

Clear the collection

Trait Implementations

impl<'a, T: Debug, S: Debug, Ser: Debug> Debug for AppendStoreMut<'a, T, S, Ser> where
    T: Serialize + DeserializeOwned,
    S: Storage,
    Ser: Serde, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.