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The signal for completed for the attached Component property was
no emitted correctly by emitComponentCompleteSignalForAttachedProperty().
I added a test for the correct behaivour.
Change-Id: I0ebfc10e512ba5c5e2352a5f5d6be3030b43cbbc
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
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Change-Id: Id640b596c1d8d52221f2f2be8807d6e245971bdc
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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After the initial enabling of a binding we can quickly determine if
there is a chance whether this binding will be re-evaluated again in the
future as a consequence of dependency changes (properties or
translations). If that is not the case, then we can save memory by
removing that binding again.
One implementation consequence of this change is that such constant
bindings used with the "when" property of states require a proper
reference count increase, which was previously implicit through the
binding association with the target object.
In tst_qqmlecmascript a test that verifies that we don't create run-time
bindings for assignments of literal "null" to QObject pointer properties
now also covers the more complex case where we don't know the property
at parse time. We still evaluate the binding once though and perform one
property assignment.
Similarly on the QtQuick Designer Support API test side a binding such
as
x: Math.max(0, 200)
will not create a persistent binding anymore and needs a tweak to
remain.
On a large scale application this optimization saved up to 5% of all
bindings on start-up (~9000 of ~180000). On Linux x86-64 one binding is
approximately 144 bytes, so the savings are in the range of ~1.2 MB of
heap, as well as reduced fragmentation.
Task-number: QTBUG-64541
Change-Id: Id3653008346fdf36611f5b4c4e82f5f78b5319aa
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
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From now on we prefer nullptr instead of 0 to clarify cases where
we are assigning or testing a pointer rather than a numeric zero.
Also, replaced cases where 0 was passed as Qt::KeyboardModifiers
with Qt::NoModifier (clang-tidy replaced them with nullptr, which
waas wrong, so it was just as well to make the tests more readable
rather than to revert those lines).
Change-Id: I4735d35e4d9f42db5216862ce091429eadc6e65d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some
exceptions, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one
(in those files which will be under GPL 3 with exceptions)
Change-Id: I04760a0801837cfc516d1c7c02d4f503f6bb70b6
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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Change-Id: Id27c36e55fcc68cc1140b0d9bec00b8ae6b52ed0
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Taking the address of a temporary is not allowed.
It is against the standard to pass a non-const reference
to a temporary object.
Change-Id: Ib333fa9a366725b8f0491a4216597fa5baeef7ff
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
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Change-Id: I691b8ddff60b5f16f06d32b379c76e87f44f84a9
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
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Change-Id: I577d0e34ce91a1fa11e3e6757bffc7adaec0f1fb
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
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