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consolidate [balance/storage]_at and _at_id functionality

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Robert Habermeier
2016-05-26 11:46:45 +02:00
parent 3405f3eab1
commit 86eab79d9d
6 changed files with 47 additions and 59 deletions
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32
ethcore/src/client/mod.rs
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@@ -74,33 +74,15 @@ pub trait BlockChainClient : Sync + Send {
/// Get address code.
fn code(&self, address: &Address) -> Option<Bytes>;
/// Get address balance at latest state.
fn balance(&self, address: &Address) -> U256;
/// Account balance at a specific block ID.
/// Get address balance at the given block's state.
///
/// Must not fail if `id` is `BlockID::Latest`.
/// Will fail if the block is not valid or the block's root hash has been
/// pruned from the DB.
fn balance_at_id(&self, address: &Address, id: BlockID) -> Option<U256> {
if let BlockID::Latest = id {
Some(self.balance(address))
} else {
None
}
}
/// Returns None if and only if the block's root hash has been pruned from the DB.
fn balance(&self, address: &Address, id: BlockID) -> Option<U256>;
/// Get value of the storage at given position from the latest state.
fn storage_at(&self, address: &Address, position: &H256) -> H256;
/// Get value of the storage at given position form the latest state.
fn storage_at_id(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256> {
if let BlockID::Latest = id {
Some(self.storage_at(address, position))
} else {
None
}
}
/// Get value of the storage at given position at the given block.
///
/// Returns None if and only if the block's root hash has been pruned from the DB.
fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256>;
/// Get transaction with given hash.
fn transaction(&self, id: TransactionID) -> Option<LocalizedTransaction>;