I'm investigating transactions using Parity trace which provides useful data over a transaction flow. Among this data is the Subtraces field which allows me to understand how many sub-calls each action has.

When delegate-call is used it seems that the subtraces are a bit confusing. For example, looking at this transaction trace I can see a few delegate calls, for example Action [6] which has 1 subtrace, but I can't see any action called by this step (by 0x2157a7894439191e520825fe9399ab8655e0f708 in this case). Why is that? What is the meaning of the subtraces field in calls of type delegatecall?

  • Did you find a answer for this? I'm having the same problem. May 15 '19 at 9:55
  • nope.. :( I guess it relates to the the special characteristics of calls of type delegate-call.
    – forhas
    Oct 9 '19 at 8:53

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