Cockatrice/cmake/pch/qtcore_pch.h
BruebachL 315cbae345
[Build] Extend PCH to libraries and grow IWYU-driven header sets (#7456)
The executables precompile Qt since #7235, but the libcockatrice_*
static libraries still reparse the full Qt Core stack in every TU.
Measured over the tree after the IWYU pass: 380 MB of header parse in
the libraries, 92% of it reachable from qtcore_pch.h.

- Apply qtcore_pch.h to the 14 Qt Core static library targets
  (skips libcockatrice_rng: its SFMT.c is C and cannot use a C++
  precompiled header).
- Grow qtcore_pch.h with 25 QtCore headers that IWYU shows are
  re-parsed across many TUs and were not already reachable from the
  existing list (JSON/QUuid cluster, QSettings, item models,
  threading, XmlStream, QTemporaryDir, ...).
- Grow qtwidgets_pch.h with 30 QtGui/QtWidgets headers (dialog
  cluster, item views, QImageReader, ...).

Only stable Qt headers go into the PCH, so it rarely invalidates.
Test executables stay PCH-less: 1-3 TUs per target does not amortize
the extra precompile.

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
2026-10-11 15:07:30 +02:00

55 lines
1.5 KiB
C

/** @file qtcore_pch.h
* @brief Precompiled header for all Qt targets (Qt Core only).
*
* Safe for every target that links Qt Core, including the headless
* Servatrice binary. Keep this header free of any widget/gui types.
*
* Candidates are chosen from IWYU include statistics: a header earns a
* spot when it is not already reachable from the rest of this list and
* enough translation units re-parse it. Qt headers are stable across
* builds, so the precompiled header rarely invalidates.
*/
#include <QBasicTimer>
#include <QByteArray>
#include <QCommandLineParser>
#include <QCoreApplication>
#include <QCryptographicHash>
#include <QDateTime>
#include <QDebug>
#include <QDir>
#include <QElapsedTimer>
#include <QFile>
#include <QFileInfo>
#include <QHash>
#include <QItemSelectionModel>
#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonValue>
#include <QList>
#include <QLoggingCategory>
#include <QMap>
#include <QMetaEnum>
#include <QMetaObject>
#include <QMutex>
#include <QMutexLocker>
#include <QObject>
#include <QPointer>
#include <QPropertyAnimation>
#include <QRandomGenerator>
#include <QReadWriteLock>
#include <QRegularExpression>
#include <QSet>
#include <QSettings>
#include <QSharedPointer>
#include <QSortFilterProxyModel>
#include <QString>
#include <QStringList>
#include <QTemporaryDir>
#include <QThread>
#include <QTimer>
#include <QUuid>
#include <QVariant>
#include <QXmlStreamReader>
#include <QXmlStreamWriter>