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bugfix: transaction tracer more robust storage key handling

This commit is contained in:
andri lim 2019-02-17 07:31:11 +07:00 committed by zah
parent 8461211f9a
commit d015fc3819
1 changed files with 4 additions and 3 deletions
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7
nimbus/vm/transaction_tracer.nim
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@ -25,10 +25,11 @@ proc initTracer*(tracer: var TransactionTracer, flags: set[TracerFlags] = {}) =
tracer.storageKeys = @[]
proc rememberStorageKey(tracer: var TransactionTracer, compDepth: int, key: Uint256) =
assert compDepth >= 0 and compDepth <= tracer.storageKeys.len
if compDepth == tracer.storageKeys.len:
if compDepth >= tracer.storageKeys.len:
let prevLen = tracer.storageKeys.len
tracer.storageKeys.setLen(compDepth + 1)
tracer.storageKeys[compDepth] = initSet[Uint256]()
for i in prevLen ..< tracer.storageKeys.len:
tracer.storageKeys[i] = initSet[Uint256]()
tracer.storageKeys[compDepth].incl key