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#include "avatarExample.h"
#include <QQmlEngine>
#include <QQmlComponent>

void registerTypes()
{
//![0]
    qmlRegisterType<AvatarExample>("Qt.example", 1, 0, "AvatarExample");
//![0]
}

void expectOne()
{
//![1]
QQmlComponent component(&engine, "exampleOne.qml");
QObject *object = component.create();
// The scarce resource will have been released automatically
// by this point, after the binding expression was evaluated.
delete object;
//![1]
}

void expectTwo()
{
//![2]
QQmlComponent component(&engine, "exampleTwo.qml");
QObject *object = component.create();
// The scarce resource will not have been released automatically
// after the binding expression was evaluated.
// Since the scarce resource was not released explicitly prior
// to the binding expression being evaluated, we get:
bool expectedResult = (object->property("avatar").isValid() == true);
delete object;
//![2]
}

void expectThree()
{
//![3]
QQmlComponent component(&engine, "exampleThree.qml");
QObject *object = component.create();
// The resource was preserved explicitly during evaluation of the
// JavaScript expression.  Thus, during property assignment, the
// scarce resource was still valid, and so we get:
bool expectedResult = (object->property("avatar").isValid() == true);
// The scarce resource will not be released until all references to
// the resource are released, and the JavaScript garbage collector runs.
delete object;
//![3]
}

void expectFour()
{
//![4]
QQmlComponent component(&engine, "exampleFour.qml");
QObject *object = component.create();
// The scarce resource was explicitly preserved by the client during
// the importAvatar() function, and so the scarce resource
// remains valid until the explicit call to releaseAvatar().  As such,
// we get the expected results:
bool expectedResultOne = (object->property("avatarOne").isValid() == true);
bool expectedResultTwo = (object->property("avatarTwo").isValid() == false);
// Because the scarce resource referenced by avatarTwo was released explicitly,
// it will no longer be consuming any system resources (beyond what a normal
// JS Object would; that small overhead will exist until the JS GC runs, as per
// any other JavaScript object).
delete object;
//![4]
}

void expectFive()
{
//![5]
QQmlComponent component(&engine, "exampleFive.qml");
QObject *object = component.create();
// We have the expected results:
bool expectedResultOne = (object->property("avatarOne").isValid() == false);
bool expectedResultTwo = (object->property("avatarTwo").isValid() == false);
// Because although only avatarTwo was explicitly released,
// avatarOne and avatarTwo were referencing the same
// scarce resource.
delete object;
//![5]
}
