Struct fuel_core_storage::StorageMut

pub struct StorageMut<'a, T, Type>(_, _)
where
         T: 'a + ?Sized,
         Type: Mappable;

The wrapper around the storage that supports methods from StorageInspect and StorageMutate.

Implementations

impl<'a, T, Type> StorageMut<'a, T, Type>where T: StorageInspect<Type>, Type: Mappable,

pub fn get( self, key: &<Type as Mappable>::Key ) -> Result<Option<Cow<'a, <Type as Mappable>::OwnedValue>>, <T as StorageInspect<Type>>::Error>

pub fn contains_key( self, key: &<Type as Mappable>::Key ) -> Result<bool, <T as StorageInspect<Type>>::Error>

impl<'a, T, Type> StorageMut<'a, T, Type>where T: StorageMutate<Type>, Type: Mappable,

pub fn insert( self, key: &<Type as Mappable>::Key, value: &<Type as Mappable>::Value ) -> Result<Option<<Type as Mappable>::OwnedValue>, <T as StorageInspect<Type>>::Error>

pub fn remove( self, key: &<Type as Mappable>::Key ) -> Result<Option<<Type as Mappable>::OwnedValue>, <T as StorageInspect<Type>>::Error>

impl<'a, T, Type> StorageMut<'a, T, Type>where Type: Mappable,

pub fn root<Key>( self, key: &Key ) -> Result<[u8; 32], <T as StorageInspect<Type>>::Error>where T: MerkleRootStorage<Key, Type>,