diff options
| -rw-r--r-- | src/corelib/global/qnamespace.qdoc | 3 | ||||
| -rw-r--r-- | src/corelib/itemmodels/qabstractitemmodel.cpp | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc index 0d9cacdb1f..b6ce9e03fd 100644 --- a/src/corelib/global/qnamespace.qdoc +++ b/src/corelib/global/qnamespace.qdoc @@ -2504,6 +2504,9 @@ to be explicitly set for instances of QListWidgetItem, QTableWidgetItem, and QTreeWidgetItem. + Note that it is undefined behavior to reimplement QAbstractItemModel::hasChildren + to return true for an index if that index has the Qt::ItemNeverHasChildren flag set. + \sa QAbstractItemModel */ diff --git a/src/corelib/itemmodels/qabstractitemmodel.cpp b/src/corelib/itemmodels/qabstractitemmodel.cpp index 0d67c1f17b..f152dec5e6 100644 --- a/src/corelib/itemmodels/qabstractitemmodel.cpp +++ b/src/corelib/itemmodels/qabstractitemmodel.cpp @@ -1679,6 +1679,9 @@ bool QAbstractItemModel::hasIndex(int row, int column, const QModelIndex &parent Use rowCount() on the parent to find out the number of children. + Note that it is undefined behavior to report that a particular index hasChildren + with this method if the same index has the flag Qt::ItemNeverHasChildren set. + \sa parent(), index() */ bool QAbstractItemModel::hasChildren(const QModelIndex &parent) const |