docs/checks/README-writing-to-temporary.md

0001 # writing-to-temporary
0002
0003 Catches when calling setters on temporaries.
0004 #### Example
0005 `widget->sizePolicy().setHorizontalStretch(1);`
0006
0007 Which should instead be:
0008 ```
0009 QSizePolicy sp = widget->sizePolicy();
0010 sp.setHorizontalStretch(1);
0011 widget->setSizePolicy(sp);
0012 ```
0013
0014 #### Requirements
0015 - The method must be of void return type, and must belong to one of these whitelisted classes:
0016   QList, QVector, QMap, QHash, QString, QSet, QByteArray, QUrl, QVarLengthArray, QLinkedList, QRect, QRectF, QBitmap, QVector2D, QVector3D, QVector4D, QSize, QSizeF, QSizePolicy
0017
0018 - Optionally, if you set env variable `CLAZY_EXTRA_OPTIONS="writing-to-temporary-widen-criteria"`, it will warn on any method with name starting with "set", regardless of it being whitelisted, example:
0019 `foo().setBar()`