119 lines
3.2 KiB
Nim
119 lines
3.2 KiB
Nim
# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed
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# except according to those terms.
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## Unifies different ledger management APIs. All ledger objects are
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## derived from the base objects
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## ::
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## LedgerRef => AccountsCache, overloaded AccountsCache, etc.
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## LedgerSpRef => SavePoint, overloaded SavePoint etc
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##
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## In order to directly use `AccountsCache` it must be imported via
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## `import db/ledger/accounts_cache`. In this case, there is no `LedgerRef`.
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##
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{.push raises: [].}
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import
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eth/common,
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./core_db,
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./ledger/base,
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./ledger/backend/[
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accounts_cache, accounts_cache_desc, accounts_ledger, accounts_ledger_desc]
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export
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AccountsCache,
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AccountsLedgerRef,
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base,
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init
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# ------------------------------------------------------------------------------
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# Public iterators
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# ------------------------------------------------------------------------------
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# Note that there should be non-closure iterators here, at least for
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# `storage()`. With closures and the `accounts_cache.nim` driver as-is, all
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# unit tests and no-hive work OK apart from `TracerTests` which fails at block
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# 49018 due to mis-running of `storage()`.
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iterator accounts*(ldg: LedgerRef): Account =
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case ldg.ldgType:
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of LegacyAccountsCache:
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for w in ldg.AccountsCache.accountsIt():
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yield w
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of LedgerCache:
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for w in ldg.AccountsLedgerRef.accountsIt():
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yield w
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else:
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raiseAssert: "Missing ledger type label"
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iterator addresses*(ldg: LedgerRef): EthAddress =
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case ldg.ldgType:
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of LegacyAccountsCache:
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for w in ldg.AccountsCache.addressesIt():
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yield w
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of LedgerCache:
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for w in ldg.AccountsLedgerRef.addressesIt():
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yield w
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else:
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raiseAssert: "Missing ledger type label"
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iterator cachedStorage*(ldg: LedgerRef, eAddr: EthAddress): (UInt256,UInt256) =
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case ldg.ldgType:
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of LegacyAccountsCache:
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for w in ldg.AccountsCache.cachedStorageIt(eAddr):
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yield w
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of LedgerCache:
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for w in ldg.AccountsLedgerRef.cachedStorageIt(eAddr):
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yield w
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else:
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raiseAssert: "Missing ledger type label"
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iterator pairs*(ldg: LedgerRef): (EthAddress,Account) =
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case ldg.ldgType:
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of LegacyAccountsCache:
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for w in ldg.AccountsCache.pairsIt():
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yield w
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of LedgerCache:
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for w in ldg.AccountsLedgerRef.pairsIt():
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yield w
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else:
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raiseAssert: "Missing ledger type label"
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iterator storage*(
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ldg: LedgerRef;
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eAddr: EthAddress;
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): (UInt256,UInt256)
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{.gcsafe, raises: [CoreDbApiError].} =
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case ldg.ldgType:
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of LegacyAccountsCache:
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for w in ldg.AccountsCache.storageIt(eAddr):
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yield w
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of LedgerCache:
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for w in ldg.AccountsLedgerRef.storageIt(eAddr):
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yield w
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else:
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raiseAssert: "Missing ledger type label"
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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