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  1. Qt
  2. QTBUG-90711

Support infrastructure to call properties (primarily setters) directly

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    • Commits:
      eff73ee3197723eb1f5b35ec39bb496a40ab5343 (qt/qtdeclarative/dev)
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      Description

      Going further with QML compiler, we need a way to figure out how to directly call property functions, without involving the meta object system.

      Consider an example:

      Rectangle {
        width: 42
      }
      

      In QML compiler, property setting would be translated into something like:

      this->setProperty("width", 42);
      

      However, in this case we rely on the meta object system to figure out the setter of the property.

      Likely, the direct call is much faster, so having

      this->setWidth(42); // directly call C++ method of "this"
      emit this->witdhChanged(); // optional?
      

      would give better performance, practically allowing the auto-generated code to be as good as human-generated one in certain cases.

      For now, looks like only setters are interesting (and signals?).

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            Assignee:
            fabiankosmale Fabian Kosmale
            Reporter:
            agolubev Andrei Golubev
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