step

This action is just a placeholder for one of the EOSIO/Antelope actions in the sequence of actions passed as a parameter to the preceeding begin action. It is part of a sequence of 'step' actions succeeding the execution of a begin action. It is used to execute exactly one of the actions in the transaction buffer of the ZEOS smart contract.

Parameters

None.

Flow

The following steps specify the flow of 'step'.

Step 0

The 'step' action is called as part of an EOSIO/Antelope transaction.

Step 1

Check if the transaction buffer of the ZEOS smart contract is initialized. If not, 'begin' hasn't been executed and execution must cancel.

Step 2

Pop the next EOSIO/Antelope action to be executed from the transaction buffer and execute it as an inline action.

Step 3

If the EOSIO/Antelope action which was just executed in the previous step is not the exec action of the ZEOS smart contract itself, check if it depends on a sequence $\mathsf{ztx}$ of zactions. If so, execute exec with the sequence of zactions $\mathsf{ztx}$ of the actual EOSIO/Antelope action (executed in step 2) as an inline action.

The third party smart contract action from step 2 can thus be assured that the sequence of zactions (which was just processed by the third party contract in step 2) is actually executed right after the action itself.

Step 4

If this was the last action in the transaction buffer, reset the buffer.