zink/storage/
value.rs

1//! Key-Value storage
2use crate::{
3    ffi,
4    storage::{StorageValue, TransientStorageValue},
5    Asm,
6};
7
8/// Storage trait. Currently not for public use
9pub trait Storage {
10    #[cfg(not(target_family = "wasm"))]
11    const STORAGE_KEY: [u8; 32];
12    const STORAGE_SLOT: i32;
13
14    type Value: StorageValue + Asm;
15
16    /// Get value from storage.
17    fn get() -> Self::Value {
18        Asm::push(Self::STORAGE_SLOT);
19        Self::Value::sload()
20    }
21
22    /// Set value to storage.
23    fn set(value: Self::Value) {
24        value.push();
25        Asm::push(Self::STORAGE_SLOT);
26        unsafe {
27            ffi::evm::sstore();
28        }
29    }
30}
31
32/// Transient storage trait. Currently not for public use
33pub trait TransientStorage {
34    #[cfg(not(target_family = "wasm"))]
35    const STORAGE_KEY: [u8; 32];
36    const STORAGE_SLOT: i32;
37
38    type Value: TransientStorageValue + Asm;
39
40    /// Get value from transient storage.
41    fn get() -> Self::Value {
42        Asm::push(Self::STORAGE_SLOT);
43        Self::Value::tload()
44    }
45
46    /// Set value to transient storage.
47    fn set(value: Self::Value) {
48        value.push();
49        Asm::push(Self::STORAGE_SLOT);
50        unsafe {
51            ffi::evm::tstore();
52        }
53    }
54}
zink/storage/value.rs

zink/storage/
value.rs
