Trait fuel_storage::StorageAsRef
source · pub trait StorageAsRef {
// Provided methods
fn storage<Type>(&self) -> StorageRef<'_, Self, Type>
where Type: Mappable { ... }
fn storage_as_ref<Type>(&self) -> StorageRef<'_, Self, Type>
where Type: Mappable { ... }
}Expand description
Helper trait for StorageInspect to provide user-friendly API to retrieve storage as reference.
Example
use fuel_storage::{Mappable, StorageInspect, StorageAsRef};
pub struct Contracts;
impl Mappable for Contracts {
type Key = Self::OwnedKey;
type OwnedKey = [u8; 32];
type Value = [u8];
type OwnedValue = Vec<u8>;
}
pub struct Balances;
impl Mappable for Balances {
type Key = Self::OwnedKey;
type OwnedKey = u128;
type Value = Self::OwnedValue;
type OwnedValue = u64;
}
pub trait Logic: StorageInspect<Contracts> + StorageInspect<Balances> {
fn run(&self) {
// You can specify which storage do you want to call with `storage::<Type>()`
let _ = self.storage::<Contracts>().get(&[0; 32]);
let _ = self.storage::<Balances>().get(&123);
}
}