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define block hash provider and default impl using frame_system (#4080)

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This PR introduces `BlockHashProvider` into `pallet_mmr::Config`
This type is used to get `block_hash` for a given `block_number` rather
than directly using `frame_system::Pallet::block_hash`

The `DefaultBlockHashProvider` uses `frame_system::Pallet::block_hash`
to get the `block_hash`

Closes: #4062
This commit is contained in:
Vedhavyas Singareddi
2024-04-13 03:27:05 +05:30
committed by GitHub
parent 5601f2865b
commit 5b513cc0e9
7 changed files with 32 additions and 2 deletions
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substrate/bin/node/runtime/src/lib.rs
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@@ -1602,6 +1602,7 @@ impl pallet_mmr::Config for Runtime {
type Hashing = Keccak256;
type LeafData = pallet_mmr::ParentNumberAndHash<Self>;
type OnNewRoot = pallet_beefy_mmr::DepositBeefyDigest<Runtime>;
type BlockHashProvider = pallet_mmr::DefaultBlockHashProvider<Runtime>;
type WeightInfo = ();
}