This avoids having to rely on moc precalculating everything and getting
its sums right, as the main integer table only has a string index
(unlike my original 5.0 plan which would have stored the offset).
For example, for:
struct Object : QObject { Q_OBJECT signals: void changed(const QVariant &v); }
moc now generates:
struct qt_meta_stringdata_Object_t {};
static constexpr auto qt_meta_stringdata_Object = QtMocHelpers::stringData(
"Object",
"foobar",
"",
"v"
);
Notes on the implementation:
* the old code is retained because we need moc 6.5 to generate code
compatible with QtCore 6.2-6.4. It's marked for removal in Qt 6.9.
* the struct qt_meta_stringdata_%s_t remains because we need a
TU-specific type for QtPrivate::is_complete (via
qt_incomplete_metaTypeArray). This can be cleaned up.
* after this change, GDB complains while loading QtCore:
warning: internal error: string "StringData<long sequence of numbers>" failed to be canonicalized
but debugging does not appear to be impacted. It's just annoying
because it shows up when QtTest detects a crash too.
Change-Id: Id0fb9ab0089845ee8843fffd16f9d5493e9bd708
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
7ceba9c472