Struct concordium_std::VacantEntryRaw

pub struct VacantEntryRaw<S> { /* private fields */ }

A view into a vacant entry in a HasStateApi type. It is part of the EntryRaw enum.

Differs from VacantEntry in that this has access to the raw bytes stored in the state via a HasStateEntry type.

Implementations

impl<StateApi: HasStateApi> VacantEntryRaw<StateApi>

pub fn key(&self) -> &[u8]

Gets a reference to the key that would be used when inserting a value through the VacantEntryRaw.

pub fn insert_raw(self, value: &[u8]) -> Result<StateApi::EntryType, StateError>

Sets the value of the entry with the VacantEntryRaw’s key.

pub fn insert<V: Serial>(
self,
value: &V
) -> Result<StateApi::EntryType, StateError>

Sets the value of the entry with the VacantEntryRaw’s key. This differs from insert_raw in that it automatically serializes the provided value. insert should be preferred for values that can be directly converted to byte arrays, e.g., any value that implements AsRef<[u8]>.