Test case for moc handling defines

Added some test cases that check that moc
correctly expands #defines

Change-Id: I7fe6eed129d46ca9281d73064571cae43b32410d
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>

tests/auto/tools/moc/moc.pro

@@ -22,6 +22,7 @@ HEADERS += using-namespaces.h no-keywords.h task87883.h c-comments.h backslash-n
            cxx11-final-classes.h \
            cxx11-explicit-override-control.h \
            forward-declared-param.h \
+           parse-defines.h
 
 
 if(*-g++*|*-icc*|*-clang*|*-llvm):!irix-*:!win32-*: HEADERS += os9-newlines.h win-newlines.h

tests/auto/tools/moc/parse-defines.h

@@ -0,0 +1,105 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PARSE_DEFINES_H
+#define PARSE_DEFINES_H
+
+#include <qobject.h>
+
+// this is intentionally ugly to test moc's preprocessing capabilities
+#define PD_NAMESPACE PD
+#define PD_BEGIN_NAMESPACE namespace PD_NAMESPACE {
+#define PD_END_NAMESPACE }
+#define PD_VOIDFUNCTION() voidFunction()
+#define PD_CLASSNAME ParseDefine
+
+#define PD_STRINGIFY(a) #a
+#define PD_SCOPED_STRING(a, b) PD_STRINGIFY(a) "::" PD_STRINGIFY(b)
+#define PD_DEFINE1(a,b) a##b
+#define PD_DEFINE2(a,b) a comb##b
+#define PD_DEFINE3(a,b) a b##ined3()
+#define PD_COMBINE(a,b) a b
+#define PD_TEST_IDENTIFIER_ARG(if, while) if while
+
+#define QString() error_type
+
+#define PD_CLASSINFO Q_CLASSINFO
+
+#if defined(Q_COMPILER_VARIADIC_MACROS)
+#define PD_VARARG(x, ...) x(__VA_ARGS__)
+#endif
+
+PD_BEGIN_NAMESPACE
+
+class PD_CLASSNAME : public QObject
+{
+    Q_OBJECT
+    Q_CLASSINFO("TestString", PD_STRINGIFY(PD_CLASSNAME))
+    PD_CLASSINFO("TestString2", "TestValue")
+public:
+    PD_CLASSNAME() {}
+
+public slots:
+    void PD_VOIDFUNCTION() {}
+
+    QString stringMethod() { return QString::fromLatin1(""); }
+
+    void PD_DEFINE1(comb, ined1()) {}
+    PD_DEFINE2(void, ined2()) {}
+    PD_DEFINE3(void, comb) {}
+    PD_COMBINE(void combined4(int, int), {})
+
+    PD_COMBINE(void combined5() {, })
+
+    PD_TEST_IDENTIFIER_ARG(void, combined6()) {}
+
+#if defined(Q_COMPILER_VARIADIC_MACROS)
+    PD_VARARG(void vararg1) {}
+    PD_VARARG(void vararg2, int) {}
+    PD_VARARG(void vararg3, int, int) {}
+#endif
+};
+
+#undef QString
+
+PD_END_NAMESPACE
+
+#endif

tests/auto/tools/moc/tst_moc.cpp

@@ -74,6 +74,8 @@
 #include "cxx11-final-classes.h"
 #include "cxx11-explicit-override-control.h"
 
+#include "parse-defines.h"
+
 QT_USE_NAMESPACE
 
 struct MyStruct {};
@@ -551,6 +553,7 @@ private slots:
     void explicitOverrideControl();
     void autoPropertyMetaTypeRegistration();
     void autoMethodArgumentMetaTypeRegistration();
+    void parseDefines();
 
 signals:
     void sigWithUnsignedArg(unsigned foo);
@@ -2705,6 +2708,58 @@ void tst_Moc::autoMethodArgumentMetaTypeRegistration()
 
 }
 
+void tst_Moc::parseDefines()
+{
+    const QMetaObject *mo = &PD_NAMESPACE::PD_CLASSNAME::staticMetaObject;
+    QCOMPARE(mo->className(), PD_SCOPED_STRING(PD_NAMESPACE, PD_CLASSNAME));
+    QVERIFY(mo->indexOfSlot("voidFunction()") != -1);
+
+    int index = mo->indexOfSlot("stringMethod()");
+    QVERIFY(index != -1);
+    QVERIFY(mo->method(index).returnType() == QMetaType::QString);
+
+    index = mo->indexOfSlot("combined1()");
+    QVERIFY(index != -1);
+
+    index = mo->indexOfSlot("combined2()");
+    QVERIFY(index != -1);
+
+    index = mo->indexOfSlot("combined3()");
+    QVERIFY(index != -1);
+
+    index = mo->indexOfSlot("combined4(int,int)");
+    QVERIFY(index != -1);
+
+    index = mo->indexOfSlot("combined5()");
+    QVERIFY(index != -1);
+
+    index = mo->indexOfSlot("combined6()");
+    QVERIFY(index != -1);
+
+#if defined(Q_COMPILER_VARIADIC_MACROS)
+    index = mo->indexOfSlot("vararg1()");
+    QVERIFY(index != -1);
+    index = mo->indexOfSlot("vararg2(int)");
+    QVERIFY(index != -1);
+    index = mo->indexOfSlot("vararg3(int,int)");
+    QVERIFY(index != -1);
+#endif
+
+    int count = 0;
+    for (int i = 0; i < mo->classInfoCount(); ++i) {
+        QMetaClassInfo mci = mo->classInfo(i);
+        if (!qstrcmp(mci.name(), "TestString")) {
+            ++count;
+            QVERIFY(!qstrcmp(mci.value(), "ParseDefine"));
+        }
+        if (!qstrcmp(mci.name(), "TestString2")) {
+            ++count;
+            QVERIFY(!qstrcmp(mci.value(), "TestValue"));
+        }
+    }
+    QVERIFY(count == 2);
+}
+
 QTEST_MAIN(tst_Moc)
 
 #include "tst_moc.moc"