Automatically register data/debug stream operations in QMetaType

And remove the old manual registration code for those operators.

Add some special handling for long/ulong, as these types could be
streamed as a QVariant so far, but are not directly streamable
through QDataStream.

[ChangeLog][QtCore][QMetaType] The QMetaType::registerStreamOperators()
and QMetaType::registerDebugStreamOperator() methods have been
removed. The streaming operators for a type are now automatically
registered together with the type registration.  This implies that the
operators should be visible wherever the type is visible and being used.

[ChangeLog][Behavior Incompatible Changes] Because the QDataStream and
QDebug serialization operators are automatically registered with
QMetaType, the declarations of those functions must be present at any
point where the type is used with QMetaType and QVariant.

Change-Id: I4a0732651b20319af4a8397ff90b848ca4580d99
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 0 insertions, 37 deletions

diff --git a/tests/auto/other/compiler/tst_compiler.cpp b/tests/auto/other/compiler/tst_compiler.cpp
index 10d91894b7..438058aa45 100644
--- a/tests/auto/other/compiler/tst_compiler.cpp
+++ b/tests/auto/other/compiler/tst_compiler.cpp
@@ -297,35 +297,6 @@ namespace QtTestInternal
         };
 #endif
     };
-
-    template<bool>
-    struct DataStreamOpHelper
-    {
-        template <typename T>
-        struct Getter {
-            static QMetaType::SaveOperator saveOp() { return 0; }
-        };
-    };
-
-    template<>
-    struct DataStreamOpHelper<true>
-    {
-        template <typename T>
-        struct Getter {
-            static QMetaType::SaveOperator saveOp()
-            {
-                return ::QtMetaTypePrivate::QMetaTypeFunctionHelper<T>::Save;
-            }
-        };
-
-    };
-
-    template<typename T>
-    inline QMetaType::SaveOperator getSaveOperator(T * = 0)
-    {
-        typedef typename DataStreamOpHelper<DataStreamChecker<T>::HasDataStream>::template Getter<T> GetterHelper;
-        return GetterHelper::saveOp();
-    }
 };
 
 struct MyString: public QString {};
@@ -344,14 +315,6 @@ void tst_Compiler::detectDataStream()
     QVERIFY(QtTestInternal::DataStreamChecker<QString>::HasDataStream);
     QVERIFY(QtTestInternal::DataStreamChecker<MyString>::HasDataStream);
     QVERIFY(!QtTestInternal::DataStreamChecker<Qxxx>::HasDataStream);
-
-    QVERIFY(QtTestInternal::getSaveOperator<int>() != 0);
-    QVERIFY(QtTestInternal::getSaveOperator<uint>() != 0);
-    QVERIFY(QtTestInternal::getSaveOperator<char *>() != 0);
-    QVERIFY(QtTestInternal::getSaveOperator<double>() != 0);
-    QVERIFY(QtTestInternal::getSaveOperator<QString>() != 0);
-    QVERIFY(QtTestInternal::getSaveOperator<MyString>() != 0);
-    QVERIFY(!QtTestInternal::getSaveOperator<Qxxx>());
 }
 #else
 void tst_Compiler::detectDataStream()