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updated StorageMapAccess::get return Option<V> #676

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updated StorageMapAccess::get return Option<V> #676

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6 changes: 3 additions & 3 deletions sdk/base/src/types/storage.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@ impl<V: Into<Word> + From<Word>> ValueAccess<V> for Value {

pub trait StorageMapAccess<K, V> {
/// Returns a map item value for `key` from the account storage.
fn get(&self, key: &K) -> V;
fn get(&self, key: &K) -> Option<V>;
/// Sets a map item `value` for `key` in the account storage and returns (old_root, old_value)
fn set(&self, key: K, value: V) -> (StorageCommitmentRoot, V);
}
Expand All @@ -44,8 +44,8 @@ impl<K: Into<Word> + AsRef<Word>, V: From<Word> + Into<Word>> StorageMapAccess<K
{
/// Returns a map item value from the account storage.
#[inline(always)]
fn get(&self, key: &K) -> V {
storage::get_map_item(self.slot, key.as_ref()).into()
fn get(&self, key: &K) -> Option<V> {
Some(storage::get_map_item(self.slot, key.as_ref()).into())
}

/// Sets a map item `value` in the account storage and returns (old_root, old_value)
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