Repository and contract details clean up#1117
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AlexandraRoatis merged 18 commits intomasterfrom Feb 20, 2020
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The cached encoding creates unnecessary overhead. It is used only when storing dirty accounts. An account will have reset the encoding when it has changes that enable the dirty flag. So there is no computation saved by caching the encoding.
The loadAccountState method was relying on each implementation to copy the account state and contract details into the provided caches. This functionality is easier to maintain when the two objects are returned instead of them being placed directly in the caches.
This is a first step towards removing the VM setters and getters from the ContractDetails interface.
This is the next step in removing the setter for the VM types from the ContractDetails interface. It has the addtional benefit of reducing the number of locks acquired for accessing data in AionRepositoryCache.
It reduces the number of locks that need to be aquired to read the account state information.
This is a step towards refining the contract details interfaces to contain only the necessary methods.
The stored implementation can use the final address instance variable. InnerContractDetails no longer needs the method.
The check is incorrectly comparing the code hash with the trie hash. It results in always updating the state root. The check cannot be corrected because the genesis contains a contract with empty code. Therefore the best option is to remove the check.
Reduces the number of byte array copies made during execution.
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