Trait StorageWrite 

pub trait StorageWrite {
    // Required methods
    fn write_bytes(
        &mut self,
        key: &Key,
        val: impl AsRef<[u8]>,
    ) -> Result<(), Error>;
    fn delete(&mut self, key: &Key) -> Result<(), Error>;

    // Provided methods
    fn write<T>(&mut self, key: &Key, val: T) -> Result<(), Error>
       where T: BorshSerialize { ... }
    fn delete_prefix(&mut self, prefix: &Key) -> Result<(), Error>
       where Self: Sized + StorageRead { ... }
}

Common storage write interface

Required Methods

fn write_bytes(&mut self, key: &Key, val: impl AsRef<[u8]>) -> Result<(), Error>

Write a value as bytes at the given key to storage.

fn delete(&mut self, key: &Key) -> Result<(), Error>

Delete a value at the given key from storage.

Provided Methods

fn write<T>(&mut self, key: &Key, val: T) -> Result<(), Error>

where T: BorshSerialize,

Write a value to be encoded with Borsh at the given key to storage.

fn delete_prefix(&mut self, prefix: &Key) -> Result<(), Error>

where Self: Sized + StorageRead,

Delete all key-vals with a matching prefix.

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<D, H> StorageWrite for TxHostEnvState<'_, D, H>

where D: 'static + DB + for<'iter> DBIter<'iter>, H: 'static + StorageHasher,

fn write_bytes(&mut self, key: &Key, val: impl AsRef<[u8]>) -> Result<(), Error>

fn delete(&mut self, key: &Key) -> Result<(), Error>

Implementors

impl StorageWrite for TestStorage

impl StorageWrite for Ctx

impl<'a, S, CA, EVAL> StorageWrite for PseudoExecutionStorage<'_, 'a, S, CA, EVAL>

where S: 'static + StateRead, CA: 'static + Clone, EVAL: 'static + VpEvaluator<'a, S, CA, EVAL>,

impl<'a, S, CA, EVAL> StorageWrite for VpValidationContext<'_, 'a, S, CA, EVAL>

where S: 'static + StateRead, CA: 'static + Clone, EVAL: VpEvaluator<'a, S, CA, EVAL>,

impl<D, H> StorageWrite for FullAccessState<D, H>

where D: 'static + DB + for<'iter> DBIter<'iter>, H: 'static + StorageHasher,

impl<D, H> StorageWrite for TempWlState<'_, D, H>

where D: 'static + DB + for<'iter> DBIter<'iter>, H: 'static + StorageHasher,

impl<D, H> StorageWrite for WlState<D, H>

where D: 'static + DB + for<'iter> DBIter<'iter>, H: 'static + StorageHasher,