Struct fuel_merkle::common::StorageMap

pub struct StorageMap<Type>where
    Type: Mappable,{ /* private fields */ }

Implementations

impl<Type> StorageMap<Type>where
    Type: Mappable,

pub fn new() -> Self

Trait Implementations

impl<Type> Debug for StorageMap<Type>where
    Type: Mappable + Debug,
    Type::OwnedKey: Debug,
    Type::OwnedValue: Debug,

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

Formats the value using the given formatter.

impl<Type> Default for StorageMap<Type>where
    Type: Mappable,

fn default() -> Self

Returns the “default value” for a type.

impl<Type> StorageInspect<Type> for StorageMap<Type>where
    Type: Mappable,
    Type::Key: Eq + Hash,
    Type::OwnedKey: Eq + Hash + Borrow<Type::Key>,

type Error = Infallible

fn get(
    &self,
    key: &Type::Key
) -> Result<Option<Cow<'_, Type::OwnedValue>>, Self::Error>

Retrieve Cow<Value> such as Key->Value.

fn contains_key(&self, key: &Type::Key) -> Result<bool, Self::Error>

Return true if there is a Key mapping to a value in the storage.

impl<Type> StorageMutate<Type> for StorageMap<Type>where
    Type: Mappable,
    Type::Key: Eq + Hash,
    Type::OwnedKey: Eq + Hash + Borrow<Type::Key>,

fn insert(
    &mut self,
    key: &Type::Key,
    value: &Type::Value
) -> Result<Option<Type::OwnedValue>, Self::Error>

Append Key->Value mapping to the storage.

fn remove(
    &mut self,
    key: &Type::Key
) -> Result<Option<Type::OwnedValue>, Self::Error>

Remove Key->Value mapping from the storage.