QAnyStringView: construct from any T implicitly convertible to QString/QByteArray

This includes QDBusReply, QProperty, and QStringBuilder expressions.

The new constructor subsumes the QStringBuilder case without requiring
jumping though hoops to delay the definition of the ctor the way we
had to for the explicit QStringBuilder constructor, so remove the
explicit QStringBuilder one again.

[ChangeLog][QtCore][QAnyStringView] Can now be constructed from
anything that implicitly converts to either QString or QByteArray.

Fixes: QTBUG-105389
Change-Id: I0e584dd3e20d591381609a3329ef47cec7356ecc
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/auto/corelib/text/qanystringview/tst_qanystringview.cpp b/tests/auto/corelib/text/qanystringview/tst_qanystringview.cpp
index 4433b8efbc..be34d9aa8c 100644
--- a/tests/auto/corelib/text/qanystringview/tst_qanystringview.cpp
+++ b/tests/auto/corelib/text/qanystringview/tst_qanystringview.cpp
@@ -59,6 +59,16 @@ static_assert(CanConvert<QLatin1String>);
 static_assert(CanConvert<const char*>);
 static_assert(CanConvert<QByteArray>);
 
+template <typename T>
+struct ImplicitlyConvertibleTo
+{
+    operator T() const;
+};
+
+static_assert(CanConvert<ImplicitlyConvertibleTo<QString>>);
+static_assert(CanConvert<ImplicitlyConvertibleTo<QByteArray>>);
+static_assert(!CanConvert<ImplicitlyConvertibleTo<QLatin1StringView>>);
+
 // QAnyStringView qchar_does_not_compile() { return QAnyStringView(QChar('a')); }
 // QAnyStringView qlatin1string_does_not_compile() { return QAnyStringView(QLatin1String("a")); }
 // QAnyStringView const_char_star_does_not_compile() { return QAnyStringView("a"); }