[Interest] QJsonDocument::fromVariant failing with list

Thiago Macieira thiago.macieira at intel.com
Tue Jun 8 23:47:50 CEST 2021

On Tuesday, 8 June 2021 13:57:53 PDT Jason H wrote:
> Which is neiher what I acually had but performs the same bad conversion as
> what I had. I am not sure why the QVariantList vs QList have different
> fidelity - the one with more fidelity - QList - actually has has less
> specificity.

Because that's how C++ works.

QList is not a type, it's a template. Neither QVariant nor QJsonDocument can 
know all possible QList instantiations. So they have coded only a few 
(QVariantList and QStringList only, possibly QVector<QVariant> and 
QVector<QString> in Qt 5 too, I don't remember).

Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel DPG Cloud Engineering

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