Struct risc0_ethereum_view_call::StateDB

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pub struct StateDB { /* private fields */ }
Expand description

A simple read-only EVM database.

It is backed by a single MerkleTrie for the accounts and one MerkleTrie each for the accounts’ storages. It panics when data is queried that is not contained in the tries.

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impl StateDB

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pub fn new( state_trie: MerkleTrie, storage_tries: impl IntoIterator<Item = MerkleTrie>, contracts: impl IntoIterator<Item = Bytes>, block_hashes: HashMap<u64, B256> ) -> Self

Creates a new state database from the given tries.

Trait Implementations§

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impl Database for StateDB

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type Error = Infallible

The database does not return any errors.

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fn basic( &mut self, address: Address ) -> Result<Option<AccountInfo>, Self::Error>

Get basic account information.
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fn code_by_hash(&mut self, hash: B256) -> Result<Bytecode, Self::Error>

Get account code by its hash.
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fn storage( &mut self, address: Address, index: U256 ) -> Result<U256, Self::Error>

Get storage value of address at index.
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fn block_hash(&mut self, number: U256) -> Result<B256, Self::Error>

Get block hash by block number.

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