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Fix storage_append (#158)

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This commit is contained in:
Bastian Köcher
2020-07-26 21:22:35 +02:00
committed by GitHub
parent 5fab0fc118
commit ec40d451a3
1 changed files with 12 additions and 1 deletions
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runtime/src/validate_block/implementation.rs
+12 -1
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@@ -264,7 +264,18 @@ impl<B: BlockT> Storage for WitnessStorage<B> {
fn storage_append(&mut self, key: &[u8], value: Vec<u8>) {
let value_vec = sp_std::vec![EncodeOpaqueValue(value)];
let current_value = self.overlay.entry(key.to_vec()).or_default();
let overlay = &mut self.overlay;
let witness_data = &self.witness_data;
let storage_root = &self.storage_root;
let current_value = overlay.entry(key.to_vec()).or_insert_with(||
read_trie_value::<Layout<HashFor<B>>, _>(
witness_data,
storage_root,
key,
).ok().flatten()
);
let item = current_value.take().unwrap_or_default();
*current_value = Some(