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Adapted flush and load for ink! 4.0 #10

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Merged
xiyu1984 merged 1 commit into from
Sep 29, 2022
Merged

Adapted flush and load for ink! 4.0 #10

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11 changes: 7 additions & 4 deletions contracts/callee/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -215,17 +215,20 @@ mod callee {
/// So if you want to flush the correct state of the contract,
/// you have to this method on storage struct.
fn flush(&self) {
let root_key = ::ink_primitives::Key::from(12);
::ink_storage::traits::push_spread_root::<Self>(self, &root_key);
let root_key = <Self as ::ink::storage::traits::StorageKey>::KEY;
::ink::env::set_contract_storage::<::ink::primitives::Key, Self>(
&root_key,
self,
);
}

/// Method loads the current state of `Self` from storage.
/// ink! recursively calculate a key of each field.
/// So if you want to load the correct state of the contract,
/// you have to this method on storage struct.
fn load(&mut self) {
let root_key = ::ink_primitives::Key::from(12);
let mut state = ::ink_storage::traits::pull_spread_root::<Self>(&root_key);
let root_key = <Self as ::ink::storage::traits::StorageKey>::KEY;
let mut state = ::ink::env::get_contract_storage(&root_key).unwrap().unwrap();
core::mem::swap(self, &mut state);
let _ = core::mem::ManuallyDrop::new(state);
}
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