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utils reproducer
tintin edited this page Sep 30, 2018
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An example app is reproduce.py which can reproduce an on-chain transaction as a totally local event, and run it in the evm.
The app takes a txhash, and
- Fetch the transaction data from an API.
- Mark (source, destination) as need-to-fetch
- Fetch balance and nonce at source, add to
genesis - Execute transaction on the
evm - If transaction has any externally reaching ops (BALANCE, EXTCODECOPY, CALL etc),
- Add those accounts as need-to-fetch
- Go back to 3 until the execution does not result in any more accounts to be fetched.
- Save the transaction trace and genesis