Enum StorageEntryModifier 

pub enum StorageEntryModifier {
    Optional,
    Default,
}

Is the storage entry optional, or does it have a default value.

Variants

Optional

The storage entry returns an Option<T>, with None if the key is not present.

Default

The storage entry returns T::Default if the key is not present.

Trait Implementations

impl Clone for StorageEntryModifier

fn clone(&self) -> StorageEntryModifier

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StorageEntryModifier

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

Formats the value using the given formatter.

impl PartialEq for StorageEntryModifier

fn eq(&self, other: &StorageEntryModifier) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for StorageEntryModifier

impl Eq for StorageEntryModifier

impl StructuralPartialEq for StorageEntryModifier