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  1. Qt
  2. QTBUG-47936

Initial child state is sometimes entered before parent state

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Out of scope
    • Affects Version/s: 4.8.1, 4.8.6, 4.8.x
    • Fix Version/s: None
    • Component/s: Core: State Machine
    • Labels:
      None
    • Environment:
      Ubuntu 12.04 LTS with Qt 4.8.1, Fedora 20 with Qt 4.8.6 - Bug does not show under Fedora 20 with Qt 5.5

      Description

      A parent state with child mode "QState::ExclusiveStates" is should be entered indirectly via his own parent state, which has the child mode "QState::ParallelStates".

      It is observed, that the child state is sometimes entered before the parent state.

      To reproduce this bug, compile attached code and look at the text output. On my system I see lines such as

      Entering state "S00100_initial"
      Error: Reached child state "S00100_initial" before parent state "S00100"
      Entering state "S00101"
      Entering state "S00100"

      where I would expect output like

      Entering state "S00100"
      Entering state "S00101"
      Entering state "S00100_initial"

      S00100 should alway be entered before its child state S00100_initial

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            Assignee:
            Unassigned Unassigned
            Reporter:
            fpesth Florian Pesth
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              Dates

              Created:
              Updated:
              Resolved:

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