Jamie Lokier 0e2bc8408d
Transaction: Run all computations via EVMC execute
1. Send all EVM executions through the EVMC `execute` function.

   It leads to the same place in the end as calling `Computation` before, but
   `execute` is the API function used by all EVMC implementations, and it is
   very explicit what data is passed back and forth.

2. As a consequence this starts using the new `host_services` code from EVM, so
   this is a significant change to the paths used for account state processing.

3. Because we will have to remove the `newComputation` call on the host side,
   anticipating that the contract code is now saved in `host` instead of being
   copied around.  As it's saved in `host`, there is no need to pass it
   separately to `evmcExecComputation`.

Signed-off-by: Jamie Lokier <jamie@shareable.org>
2021-06-08 18:29:39 +01:00
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