Enum concordium_std::EntryRaw

pub enum EntryRaw<StateApi: HasStateApi> {
    Vacant(VacantEntryRaw<StateApi>),
    Occupied(OccupiedEntryRaw<StateApi>),
}

A view into a single entry in a HasStateApi type, which may either be vacant or occupied.

This enum is constructed from the entry method on a HasStateApi type.

Variants

Vacant(VacantEntryRaw<StateApi>)

Occupied(OccupiedEntryRaw<StateApi>)

Implementations

impl<StateApi: HasStateApi> EntryRaw<StateApi>

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

Ensures a value is in the entry by inserting the default if empty, and returns the HasStateEntry type for the entry.

pub fn or_insert<V: Serial>(self, default: &V) -> StateApi::EntryType

Ensures a value is in the entry by inserting the default if empty, and returns the HasStateEntry type. This differs from or_insert_raw in that it automatically serializes the provided value. or_insert should be preferred for values that can be directly converted to byte arrays, e.g., any value that implements AsRef<[u8]>.

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

Returns a reference to this entry’s key.