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Separate nodes and values #1770

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@Harrm Harrm commented Aug 28, 2023

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Comment on lines +21 to +32
class TrieNodeStorageBackend : public BufferStorage {
public:
~TrieStorageBackend() override = default;
~TrieNodeStorageBackend() override = default;
};

/**
* Adapter for the trie value storage that allows to hide keyspace separation
* along with root hash storing logic from the trie db component
*/
class TrieValueStorageBackend : public BufferStorage {
public:
~TrieValueStorageBackend() override = default;
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@turuslan turuslan Aug 29, 2023

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Remove TrieNodeStorageBackend and TrieValueStorageBackend.

Use BufferStorage directly (or new simple interface TrieDb { get(Hash): Opt<Cow>; put(Hash, Cow); }, maybe get and put can accept bool for value/node).

If you want strong type for injection, then
don't inherit interface (because you can't use parent interface implementation struct IDb{}; struct Db:IDb{}; struct IDb2:IDb{}; IDb2 idb2 = new Db{};)
but wrapper struct (struct TrieDbNode { IDb _; }; struct TrieDbValue { IDb _; }; or struct TrieDb { IDb node, value; }),
or don't inject

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Why?

@turuslan turuslan mentioned this pull request Nov 24, 2023
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2 participants