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  1. Qt
  2. QTBUG-91390

ListModel doesn't keep objects of JavaScriptOwnership alive

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    • 16fc4cf366961e50b5bdf29af5c0546fe3c69495 (qt/qtdeclarative/dev) d30fad2a71aa3dab8e858b5fd421f8103b1bdcac (qt/qtdeclarative/6.2), 718f3469f (dev), 749470e6b (tqtc/lts-6.2), 389110675 (6.5), a22ea1619 (6.4)

    Description

      The shown ListModel doesn't keep "o" alive, which is a QObject whose ownership is JavaScriptOwnership. I observe that "gc()" yields to a destructor call of the object that "o" references.

      Please use the attached "gc" tarball that contains an example project. Entering Code doesn't appear to work in the Description.

       

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-99279 listModel.set() leads to crash in some situation.

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-95895 REG 5.15 -> 6.2: destroy() does not destroy objects after appending listModel.

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-80589 Assigning a new QObject w/o a parent to a C++ property through QML doesn't prevent it from being garbage collected

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-91390
          # Subject Branch Project Status CR V
          354140,7 qqmllistmodel: Fix QObjects getting garbage collected dev qt/qtdeclarative Status: MERGED +2 0
          354400,2 qqmllistmodel: Fix QObjects getting garbage collected 6.2 qt/qtdeclarative Status: MERGED +2 0
          456771,4 ListModel: Use PersistentValue to keep track of objects dev qt/qtdeclarative Status: MERGED +2 0
          457053,2 ListModel: Use PersistentValue to keep track of objects 6.5 qt/qtdeclarative Status: MERGED +2 0
          457054,3 ListModel: Use PersistentValue to keep track of objects 6.4 qt/qtdeclarative Status: MERGED +2 0
          457121,3 ListModel: Use PersistentValue to keep track of objects tqtc/lts-6.2 qt/tqtc-qtdeclarative Status: MERGED +2 0

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              ulherman Ulf Hermann
              jschaubzes Johannes Schaub
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                Updated:
                Resolved: