From cb3152086c61e7c51ed1c5f8c5946364e19abc4d Mon Sep 17 00:00:00 2001
From: Fabian Kosmale <fabian.kosmale@qt.io>
Date: Tue, 21 Jan 2020 15:33:11 +0100
Subject: Introduce Q_PROPERTY attribute REQUIRED

This is meant to correspond to required properties in QML.

Change-Id: I2645981e13f7423bc86b48370c165b3cfe2aaa62
Task-number: QTBUG-81561
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
---
 src/corelib/kernel/qmetaobject.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/corelib/kernel/qmetaobject.cpp')

diff --git a/src/corelib/kernel/qmetaobject.cpp b/src/corelib/kernel/qmetaobject.cpp
index 347fb1eb87..37f5acc5c5 100644
--- a/src/corelib/kernel/qmetaobject.cpp
+++ b/src/corelib/kernel/qmetaobject.cpp
@@ -3572,6 +3572,21 @@ bool QMetaProperty::isFinal() const
     return flags & Final;
 }
 
+/*!
+  \since 5.15
+  Returns \c true if the property is required; otherwise returns \c false.
+
+  A property is final if the \c{Q_PROPERTY()}'s \c REQUIRED attribute
+  is set.
+*/
+bool QMetaProperty::isRequired() const
+{
+    if (!mobj)
+        return false;
+    int flags = mobj->d.data[handle + 2];
+    return flags & Required;
+}
+
 /*!
     \obsolete
 
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