cppcompletion_test.cpp 68.6 KB
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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** 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.
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**
** GNU Lesser General Public License Usage
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** 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
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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****************************************************************************/
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#include "cppcompletionassist.h"
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#include "cppmodelmanager.h"
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#include "cpptoolsplugin.h"
#include "cpptoolstestcase.h"
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#include <texteditor/codeassist/iassistproposal.h>
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#include <texteditor/convenience.h>
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#include <texteditor/plaintexteditor.h>
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#include <utils/changeset.h>
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#include <utils/fileutils.h>

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#include <QDebug>
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#include <QDir>
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#include <QTextDocument>
#include <QtTest>
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/*!
    Tests for code completion.
 */
using namespace CPlusPlus;
using namespace CppTools;
using namespace CppTools::Internal;
using namespace TextEditor;
using namespace Core;

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namespace {

typedef QByteArray _;
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class CompletionTestCase : public CppTools::Tests::TestCase
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{
public:
    CompletionTestCase(const QByteArray &sourceText, const QByteArray &textToInsert = QByteArray())
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        : m_position(-1), m_editorWidget(0), m_textDocument(0), m_editor(0)
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    {
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        m_source = sourceText;
        m_position = m_source.indexOf('@');
        QVERIFY(m_position != -1);
        m_source[m_position] = ' ';
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        // Write source to file
        const QString fileName = QDir::tempPath() + QLatin1String("/file.h");
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        QVERIFY(writeFile(fileName, m_source));
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        // Open in editor
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        m_editor = EditorManager::openEditor(fileName);
        QVERIFY(m_editor);
        closeEditorAtEndOfTestCase(m_editor);
        m_editorWidget = qobject_cast<TextEditor::BaseTextEditorWidget *>(m_editor->widget());
        QVERIFY(m_editorWidget);
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        m_textDocument = m_editorWidget->document();
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        // Get Document
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        waitForFileInGlobalSnapshot(fileName);
        const Document::Ptr document = globalSnapshot().document(fileName);
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        m_snapshot.insert(document);
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        if (!textToInsert.isEmpty())
            insertText(textToInsert);
    }
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    QStringList getCompletions(bool *replaceAccessOperator = 0) const
    {
        QStringList completions;
        CppCompletionAssistInterface *ai
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            = new CppCompletionAssistInterface(m_editorWidget->document(), m_position,
                                               m_editorWidget->baseTextDocument()->filePath(),
                                               ExplicitlyInvoked, m_snapshot,
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                                               QStringList(), QStringList());
        CppCompletionAssistProcessor processor;
        IAssistProposal *proposal = processor.perform(ai);
        if (!proposal)
            return completions;
        IAssistProposalModel *model = proposal->model();
        if (!model)
            return completions;
        CppAssistProposalModel *listmodel = dynamic_cast<CppAssistProposalModel *>(model);
        if (!listmodel)
            return completions;

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        const int pos = proposal->basePosition();
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        const int length = m_position - pos;
        const QString prefix = Convenience::textAt(QTextCursor(m_editorWidget->document()), pos,
                                                   length);
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        if (!prefix.isEmpty())
            listmodel->filter(prefix);
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        if (listmodel->isSortable(prefix))
            listmodel->sort(prefix);
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        for (int i = 0; i < listmodel->size(); ++i)
            completions << listmodel->text(i);

        if (replaceAccessOperator)
            *replaceAccessOperator = listmodel->m_replaceDotForArrow;
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        return completions;
    }
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    void insertText(const QByteArray &text)
    {
        Utils::ChangeSet change;
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        change.insert(m_position, QLatin1String(text));
        QTextCursor cursor(m_textDocument);
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        change.apply(&cursor);
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        m_position += text.length();
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    }
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private:
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    QByteArray m_source;
    int m_position;
    Snapshot m_snapshot;
    BaseTextEditorWidget *m_editorWidget;
    QTextDocument *m_textDocument;
    IEditor *m_editor;
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};
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} // anonymous namespace

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void CppToolsPlugin::test_completion_basic_1()
{
    const QByteArray source =
            "class Foo\n"
            "{\n"
            "    void foo();\n"
            "    int m;\n"
            "};\n"
            "\n"
            "void func() {\n"
            "    Foo f;\n"
            "    @\n"
            "}";
    CompletionTestCase test(source);

    QStringList basicCompletions = test.getCompletions();
    QVERIFY(!basicCompletions.contains(QLatin1String("foo")));
    QVERIFY(!basicCompletions.contains(QLatin1String("m")));
    QVERIFY(basicCompletions.contains(QLatin1String("Foo")));
    QVERIFY(basicCompletions.contains(QLatin1String("func")));
    QVERIFY(basicCompletions.contains(QLatin1String("f")));

    test.insertText("f.");

    QStringList memberCompletions = test.getCompletions();
    QVERIFY(memberCompletions.contains(QLatin1String("foo")));
    QVERIFY(memberCompletions.contains(QLatin1String("m")));
    QVERIFY(!memberCompletions.contains(QLatin1String("func")));
    QVERIFY(!memberCompletions.contains(QLatin1String("f")));
}

void CppToolsPlugin::test_completion_prefix_first_QTCREATORBUG_8737()
{
    const QByteArray source =
            "void f()\n"
            "{\n"
            "    int a_b_c, a_c, a_c_a;\n"
            "    @;\n"
            "}\n"
            ;
    CompletionTestCase test(source, "a_c");

    QStringList completions = test.getCompletions();

    QVERIFY(completions.size() >= 2);
    QCOMPARE(completions.at(0), QLatin1String("a_c"));
    QCOMPARE(completions.at(1), QLatin1String("a_c_a"));
    QVERIFY(completions.contains(QLatin1String("a_b_c")));
}

void CppToolsPlugin::test_completion_prefix_first_QTCREATORBUG_9236()
{
    const QByteArray source =
            "class r_etclass\n"
            "{\n"
            "public:\n"
            "    int raEmTmber;\n"
            "    void r_e_t(int re_t)\n"
            "    {\n"
            "        int r_et;\n"
            "        int rETUCASE;\n"
            "        @\n"
            "    }\n"
            "};\n"
            ;
    CompletionTestCase test(source, "ret");

    QStringList completions = test.getCompletions();

    QVERIFY(completions.size() >= 2);
    QCOMPARE(completions.at(0), QLatin1String("return"));
    QCOMPARE(completions.at(1), QLatin1String("rETUCASE"));
    QVERIFY(completions.contains(QLatin1String("r_etclass")));
    QVERIFY(completions.contains(QLatin1String("raEmTmber")));
    QVERIFY(completions.contains(QLatin1String("r_e_t")));
    QVERIFY(completions.contains(QLatin1String("re_t")));
    QVERIFY(completions.contains(QLatin1String("r_et")));
}

void CppToolsPlugin::test_completion_template_function()
{
    QFETCH(QByteArray, code);
    QFETCH(QStringList, expectedCompletions);

    CompletionTestCase test(code);

    QStringList actualCompletions = test.getCompletions();

    QString errorPattern(QLatin1String("Completion not found: %1"));
    foreach (const QString &completion, expectedCompletions) {
        QByteArray errorMessage = errorPattern.arg(completion).toUtf8();
        QVERIFY2(actualCompletions.contains(completion), errorMessage.data());
    }
}

void CppToolsPlugin::test_completion_template_function_data()
{
    QTest::addColumn<QByteArray>("code");
    QTest::addColumn<QStringList>("expectedCompletions");

    QByteArray code;
    QStringList completions;

    code =
           "template <class tclass, typename tname, int tint>\n"
           "tname Hello(const tclass &e)\n"
           "{\n"
           "    tname e2 = e;\n"
           "    @\n"
           "}";

    completions.append(QLatin1String("tclass"));
    completions.append(QLatin1String("tname"));
    completions.append(QLatin1String("tint"));
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    QTest::newRow("case: template parameters in template function body")
            << code << completions;

    completions.clear();

    code =
           "template <class tclass, typename tname, int tint>\n"
           "tname Hello(const tclass &e, @)\n"
           "{\n"
           "    tname e2 = e;\n"
           "}";

    completions.append(QLatin1String("tclass"));
    completions.append(QLatin1String("tname"));
    completions.append(QLatin1String("tint"));
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    QTest::newRow("case: template parameters in template function parameters list")
            << code << completions;
}

void CppToolsPlugin::test_completion()
{
    QFETCH(QByteArray, code);
    QFETCH(QByteArray, prefix);
    QFETCH(QStringList, expectedCompletions);

    CompletionTestCase test(code, prefix);

    QStringList actualCompletions = test.getCompletions();
    actualCompletions.sort();
    expectedCompletions.sort();

    QCOMPARE(actualCompletions, expectedCompletions);
}

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void CppToolsPlugin::test_completion_data()
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{
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    QTest::addColumn<QByteArray>("code");
    QTest::addColumn<QByteArray>("prefix");
    QTest::addColumn<QStringList>("expectedCompletions");

    QTest::newRow("forward_declarations_present") << _(
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            "class Foo\n"
            "{\n"
            "    struct Bar;\n"
            "    int i;\n"
            "};\n"
            "\n"
            "struct Foo::Bar \n"
            "{\n"
            "    Bar() {}\n"
            "};\n"
            "\n"
            "@\n"
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        ) << _("Foo::Bar::") << (QStringList()
            << QLatin1String("Bar"));
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    QTest::newRow("inside_parentheses_c_style_conversion") << _(
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            "class Base\n"
            "{\n"
            "    int i_base;\n"
            "};\n"
            "\n"
            "class Derived : public Base\n"
            "{\n"
            "    int i_derived;\n"
            "};\n"
            "\n"
            "void fun()\n"
            "{\n"
            "    Base *b = new Derived;\n"
            "    if (1)\n"
            "        @\n"
            "}\n"
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        ) << _("((Derived *)b)->") << (QStringList()
            << QLatin1String("Derived")
            << QLatin1String("Base")
            << QLatin1String("i_derived")
            << QLatin1String("i_base"));
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    QTest::newRow("inside_parentheses_cast_operator_conversion") << _(
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            "class Base\n"
            "{\n"
            "    int i_base;\n"
            "};\n"
            "\n"
            "class Derived : public Base\n"
            "{\n"
            "    int i_derived;\n"
            "};\n"
            "\n"
            "void fun()\n"
            "{\n"
            "    Base *b = new Derived;\n"
            "    if (1)\n"
            "        @\n"
            "}\n"
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        ) << _("(static_cast<Derived *>(b))->") << (QStringList()
            << QLatin1String("Derived")
            << QLatin1String("Base")
            << QLatin1String("i_derived")
            << QLatin1String("i_base"));
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    QTest::newRow("template_1") << _(
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            "template <class T>\n"
            "class Foo\n"
            "{\n"
            "    typedef T Type;\n"
            "    T foo();\n"
            "    T m;\n"
            "};\n"
            "\n"
            "void func() {\n"
            "    Foo f;\n"
            "    @\n"
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            "}"
        ) << _("Foo::") << (QStringList()
              << QLatin1String("Foo")
              << QLatin1String("Type")
              << QLatin1String("foo")
              << QLatin1String("m"));
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    QTest::newRow("template_2") << _(
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            "template <class T>\n"
            "struct List\n"
            "{\n"
            "    T &at(int);\n"
            "};\n"
            "\n"
            "struct Tupple { int a; int b; };\n"
            "\n"
            "void func() {\n"
            "    List<Tupple> l;\n"
            "    @\n"
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            "}"
        ) << _("l.at(0).") << (QStringList()
            << QLatin1String("Tupple")
            << QLatin1String("a")
            << QLatin1String("b"));
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    QTest::newRow("template_3") << _(
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            "template <class T>\n"
            "struct List\n"
            "{\n"
            "    T t;\n"
            "};\n"
            "\n"
            "struct Tupple { int a; int b; };\n"
            "\n"
            "void func() {\n"
            "    List<Tupple> l;\n"
            "    @\n"
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            "}"
        ) << _("l.t.") << (QStringList()
            << QLatin1String("Tupple")
            << QLatin1String("a")
            << QLatin1String("b"));
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    QTest::newRow("template_4") << _(
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            "template <class T>\n"
            "struct List\n"
            "{\n"
            "    typedef T U;\n"
            "    U u;\n"
            "};\n"
            "\n"
            "struct Tupple { int a; int b; };\n"
            "\n"
            "void func() {\n"
            "    List<Tupple> l;\n"
            "    @\n"
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            "}"
        ) << _("l.u.") << (QStringList()
            << QLatin1String("Tupple")
            << QLatin1String("a")
            << QLatin1String("b"));
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    QTest::newRow("template_5") << _(
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            "template <class T>\n"
            "struct List\n"
            "{\n"
            "    T u;\n"
            "};\n"
            "\n"
            "struct Tupple { int a; int b; };\n"
            "\n"
            "void func() {\n"
            "    typedef List<Tupple> LT;\n"
            "    LT l;"
            "    @\n"
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            "}"
        ) << _("l.u.") << (QStringList()
            << QLatin1String("Tupple")
            << QLatin1String("a")
            << QLatin1String("b"));
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    QTest::newRow("template_6") << _(
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            "class Item\n"
            "{\n"
            "    int i;\n"
            "};\n"
            "\n"
            "template <typename T>\n"
            "class Container\n"
            "{\n"
            "    T get();\n"
            "};\n"
            "\n"
            "template <typename T> class Container;\n"
            "\n"
            "class ItemContainer: public Container<Item>\n"
            "{};\n"
            "ItemContainer container;\n"
            "@\n"
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        ) << _("container.get().") << (QStringList()
            << QLatin1String("Item")
            << QLatin1String("i"));
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    QTest::newRow("template_7") << _(
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            "struct Test\n"
            "{\n"
            "   int i;\n"
            "};\n"
            "\n"
            "template<typename T>\n"
            "struct TemplateClass\n"
            "{\n"
            "    T* ptr;\n"
            "\n"
            "    typedef T element_type;\n"
            "    TemplateClass(T* t) : ptr(t) {}\n"
            "    element_type* operator->()\n"
            "    {\n"
            "        return ptr;\n"
            "    }\n"
            "};\n"
            "\n"
            "TemplateClass<Test> p(new Test);\n"
            "@\n"
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        ) << _("p->") << (QStringList()
            << QLatin1String("Test")
            << QLatin1String("i"));
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    QTest::newRow("type_of_pointer_is_typedef") << _(
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            "typedef struct Foo\n"
            "{\n"
            "    int foo;\n"
            "} Foo;\n"
            "Foo *bar;\n"
            "@\n"
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        ) << _("bar->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("foo"));
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    QTest::newRow("instantiate_full_specialization") << _(
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            "template<typename T>\n"
            "struct Template\n"
            "{\n"
            "   int templateT_i;\n"
            "};\n"
            "\n"
            "template<>\n"
            "struct Template<char>\n"
            "{\n"
            "    int templateChar_i;\n"
            "};\n"
            "\n"
            "Template<char> templateChar;\n"
            "@\n"
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        ) << _("templateChar.") << (QStringList()
            << QLatin1String("Template")
            << QLatin1String("templateChar_i"));
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    QTest::newRow("template_as_base: base as template directly") << _(
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            "class Data { int dataMember; };\n"
            "template <class T> class Other : public T { int otherMember; };\n"
            "\n"
            "void func() {\n"
            "    Other<Data> c;\n"
            "    @\n"
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            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Other")
            << QLatin1String("otherMember"));
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    QTest::newRow("template_as_base: base as class template") << _(
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            "class Data { int dataMember; };\n"
            "template <class T> class Other : public T { int otherMember; };\n"
            "template <class T> class More : public Other<T> { int moreMember; };\n"
            "\n"
            "void func() {\n"
            "    More<Data> c;\n"
            "    @\n"
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            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Other")
            << QLatin1String("otherMember")
            << QLatin1String("More")
            << QLatin1String("moreMember"));

    QTest::newRow("template_as_base: base as globally qualified class template") << _(
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            "class Data { int dataMember; };\n"
            "template <class T> class Other : public T { int otherMember; };\n"
            "template <class T> class More : public ::Other<T> { int moreMember; };\n"
            "\n"
            "void func() {\n"
            "    More<Data> c;\n"
            "    @\n"
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            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Other")
            << QLatin1String("otherMember")
            << QLatin1String("More")
            << QLatin1String("moreMember"));

    QTest::newRow("template_as_base: base as namespace qualified class template") << _(
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            "class Data { int dataMember; };\n"
            "namespace NS {\n"
            "template <class T> class Other : public T { int otherMember; };\n"
            "}\n"
            "template <class T> class More : public NS::Other<T> { int moreMember; };\n"
            "\n"
            "void func() {\n"
            "    More<Data> c;\n"
            "    @\n"
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            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Other")
            << QLatin1String("otherMember")
            << QLatin1String("More")
            << QLatin1String("moreMember"));

    QTest::newRow("template_as_base: base as nested template name") << _(
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            "class Data { int dataMember; };\n"
            "namespace NS {\n"
            "template <class T> class Delegate { typedef Data<T> Type; };\n"
            "}\n"
            "template <class T> class Final : public NS::Delegate<T>::Type { int finalMember; };\n"
            "\n"
            "void func() {\n"
            "    Final<Data> c;\n"
            "    @\n"
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            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Final")
            << QLatin1String("finalMember"));
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    QTest::newRow("template_as_base: base as nested template name in non-template") << _(
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            "class Data { int dataMember; };\n"
            "namespace NS {\n"
            "template <class T> class Delegate { typedef Data<T> Type; };\n"
            "}\n"
            "class Final : public NS::Delegate<Data>::Type { int finalMember; };\n"
            "\n"
            "void func() {\n"
            "    Final c;\n"
            "    @\n"
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            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Final")
            << QLatin1String("finalMember"));
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    QTest::newRow("template_as_base: base as template name in non-template") << _(
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            "class Data { int dataMember; };\n"
            "namespace NS {\n"
            "template <class T> class Other : public T { int otherMember; };\n"
            "}\n"
            "class Final : public NS::Other<Data> { int finalMember; };\n"
            "\n"
            "void func() {\n"
            "    Final c;\n"
            "    @\n"
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            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Final")
            << QLatin1String("finalMember")
            << QLatin1String("Other")
            << QLatin1String("otherMember"));

    QTest::newRow("use_global_identifier_as_base_class: derived as global and base as global") << _(
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            "struct Global\n"
            "{\n"
            "    int int_global;\n"
            "};\n"
            "\n"
            "struct Final : ::Global\n"
            "{\n"
            "   int int_final;\n"
            "};\n"
            "\n"
            "Final c;\n"
671 672 673 674 675 676 677
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_global")
            << QLatin1String("int_final")
            << QLatin1String("Final")
            << QLatin1String("Global"));

678
    QTest::newRow("use_global_identifier_as_base_class: derived is inside namespace. "
679
                  "base as global") << _(
680 681 682 683 684 685 686 687 688 689 690 691 692 693
            "struct Global\n"
            "{\n"
            "    int int_global;\n"
            "};\n"
            "\n"
            "namespace NS\n"
            "{\n"
            "struct Final : ::Global\n"
            "{\n"
            "   int int_final;\n"
            "};\n"
            "}\n"
            "\n"
            "NS::Final c;\n"
694 695 696 697 698 699
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_global")
            << QLatin1String("int_final")
            << QLatin1String("Final")
            << QLatin1String("Global"));
700

701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723
    QTest::newRow("use_global_identifier_as_base_class: derived is enclosed by template. "
                  "base as global") << _(
            "struct Global\n"
            "{\n"
            "    int int_global;\n"
            "};\n"
            "\n"
            "template <typename T>\n"
            "struct Enclosing\n"
            "{\n"
            "struct Final : ::Global\n"
            "{\n"
            "   int int_final;\n"
            "};\n"
            "};\n"
            "\n"
            "Enclosing<int>::Final c;\n"
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_global")
            << QLatin1String("int_final")
            << QLatin1String("Final")
            << QLatin1String("Global"));
724

725
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class") << _(
726 727 728 729 730 731
            "struct A : A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "\n"
            "A c;\n"
732 733 734 735
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
736

737 738
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class. "
                  "class is in namespace") << _(
739 740 741 742 743 744 745 746 747
            "namespace NS\n"
            "{\n"
            "struct A : A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "}\n"
            "\n"
            "NS::A c;\n"
748 749 750 751
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
752

753 754
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class. "
                  "class is in namespace. use scope operator for base class") << _(
755 756 757 758 759 760 761 762 763
            "namespace NS\n"
            "{\n"
            "struct A : NS::A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "}\n"
            "\n"
            "NS::A c;\n"
764 765 766 767
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
768

769 770
    QTest::newRow("base_class_has_name_the_same_as_derived: base class has the same name as "
                  "derived but in different namespace") << _(
771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786
            "namespace NS1\n"
            "{\n"
            "struct A\n"
            "{\n"
            "   int int_ns1_a;\n"
            "};\n"
            "}\n"
            "namespace NS2\n"
            "{\n"
            "struct A : NS1::A\n"
            "{\n"
            "   int int_ns2_a;\n"
            "};\n"
            "}\n"
            "\n"
            "NS2::A c;\n"
787 788 789 790 791
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_ns1_a")
            << QLatin1String("int_ns2_a")
            << QLatin1String("A"));
792

793 794
    QTest::newRow("base_class_has_name_the_same_as_derived: base class has the same name as "
                  "derived (in namespace) but is nested by different class") << _(
795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810
            "struct Enclosing\n"
            "{\n"
            "struct A\n"
            "{\n"
            "   int int_enclosing_a;\n"
            "};\n"
            "};\n"
            "namespace NS2\n"
            "{\n"
            "struct A : Enclosing::A\n"
            "{\n"
            "   int int_ns2_a;\n"
            "};\n"
            "}\n"
            "\n"
            "NS2::A c;\n"
811 812 813 814 815
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_enclosing_a")
            << QLatin1String("int_ns2_a")
            << QLatin1String("A"));
816

817 818
    QTest::newRow("base_class_has_name_the_same_as_derived: base class has the same name as "
                  "derived (nested) but is nested by different class") << _(
819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834
            "struct EnclosingBase\n"
            "{\n"
            "struct A\n"
            "{\n"
            "   int int_enclosing_base_a;\n"
            "};\n"
            "};\n"
            "struct EnclosingDerived\n"
            "{\n"
            "struct A : EnclosingBase::A\n"
            "{\n"
            "   int int_enclosing_derived_a;\n"
            "};\n"
            "};\n"
            "\n"
            "EnclosingDerived::A c;\n"
835 836 837 838 839
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_enclosing_base_a")
            << QLatin1String("int_enclosing_derived_a")
            << QLatin1String("A"));
840

841 842
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class. "
                  "class is a template") << _(
843 844 845 846 847 848 849
            "template <typename T>\n"
            "struct A : A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "\n"
            "A<int> c;\n"
850 851 852 853
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
854

855
    QTest::newRow("cyclic_inheritance: direct cyclic inheritance") << _(
856 857 858 859 860 861
            "struct B;\n"
            "struct A : B { int _a; };\n"
            "struct B : A { int _b; };\n"
            "\n"
            "A c;\n"
            "@\n"
862 863 864 865 866
        ) << _("c.") << (QStringList()
            << QLatin1String("A")
            << QLatin1String("_a")
            << QLatin1String("B")
            << QLatin1String("_b"));
867

868
    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance") << _(
869 870 871 872 873 874 875
            "struct C;\n"
            "struct A : C { int _a; };\n"
            "struct B : A { int _b; };\n"
            "struct C : B { int _c; };\n"
            "\n"
            "A c;\n"
            "@\n"
876 877 878 879 880 881 882 883 884
        ) << _("c.") << (QStringList()
            << QLatin1String("A")
            << QLatin1String("_a")
            << QLatin1String("B")
            << QLatin1String("_b")
            << QLatin1String("C")
            << QLatin1String("_c"));

    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance") << _(
885 886 887 888 889 890 891
            "struct B;\n"
            "struct A : B { int _a; };\n"
            "struct C { int _c; };\n"
            "struct B : C, A { int _b; };\n"
            "\n"
            "A c;\n"
            "@\n"
892 893 894 895 896 897 898 899 900
        ) << _("c.") << (QStringList()
            << QLatin1String("A")
            << QLatin1String("_a")
            << QLatin1String("B")
            << QLatin1String("_b")
            << QLatin1String("C")
            << QLatin1String("_c"));

    QTest::newRow("cyclic_inheritance: direct cyclic inheritance with templates") << _(
901 902 903 904 905 906 907 908 909 910 911 912 913
            "template< typename T > struct C;\n"
            "template< typename T, typename S > struct D : C< S >\n"
            "{\n"
            "   T _d_t;\n"
            "   S _d_s;\n"
            "};\n"
            "template< typename T > struct C : D< T, int >\n"
            "{\n"
            "   T _c_t;\n"
            "};\n"
            "\n"
            "D<int, float> c;\n"
            "@\n"
914 915 916 917 918 919 920 921
        ) << _("c.") << (QStringList()
            << QLatin1String("D")
            << QLatin1String("_d_t")
            << QLatin1String("_d_s")
            << QLatin1String("C")
            << QLatin1String("_c_t"));

    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance with templates") << _(
922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938
            "template< typename T > struct C;\n"
            "template< typename T, typename S > struct D : C< S >\n"
            "{\n"
            "   T _d_t;\n"
            "   S _d_s;\n"
            "};\n"
            "template< typename T > struct B : D< T, int >\n"
            "{\n"
            "   T _b_t;\n"
            "};\n"
            "template< typename T > struct C : B<T>\n"
            "{\n"
            "   T _c_t;\n"
            "};\n"
            "\n"
            "D<int, float> c;\n"
            "@\n"
939 940 941 942 943 944 945 946 947
        ) << _("c.") << (QStringList()
            << QLatin1String("D")
            << QLatin1String("_d_t")
            << QLatin1String("_d_s")
            << QLatin1String("C")
            << QLatin1String("_c_t")
            << QLatin1String("B")
            << QLatin1String("_b_t"));

948
    QTest::newRow("cyclic_inheritance: direct cyclic inheritance with templates. "
949
                  "more complex situation") << _(
950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976
           "namespace NS\n"
           "{\n"
           "template <typename T> struct SuperClass\n"
           "{\n"
           "    typedef T Type;\n"
           "    Type super_class_type;\n"
           "};\n"
           "}\n"
           "\n"
           "template <typename T>\n"
           "struct Class;\n"
           "\n"
           "template <typename T, typename S>\n"
           "struct ClassRecurse : Class<S>\n"
           "{\n"
           "    T class_recurse_t;\n"
           "    S class_recurse_s;\n"
           "};\n"
           "\n"
           "template <typename T>\n"
           "struct Class : ClassRecurse< T, typename ::NS::SuperClass<T>::Type >\n"
           "{\n"
           "    T class_t;\n"
           "};\n"
           "\n"
           "Class<int> c;\n"
           "@\n"
977 978 979 980 981 982 983 984
        ) << _("c.") << (QStringList()
            << QLatin1String("Class")
            << QLatin1String("ClassRecurse")
            << QLatin1String("class_t")
            << QLatin1String("class_recurse_s")
            << QLatin1String("class_recurse_t"));

    QTest::newRow("enclosing_template_class: nested class with enclosing template class") << _(
985 986 987 988 989 990 991 992
            "template<typename T>\n"
            "struct Enclosing\n"
            "{\n"
            "    struct Nested { int int_nested; }; \n"
            "    int int_enclosing;\n"
            "};\n"
            "\n"
            "Enclosing<int>::Nested c;"
993 994 995 996
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("Nested")
            << QLatin1String("int_nested"));
997

998 999
    QTest::newRow("enclosing_template_class: nested template class with enclosing template "
                  "class") << _(
1000 1001 1002 1003 1004 1005 1006 1007
            "template<typename T>\n"
            "struct Enclosing\n"
            "{\n"
            "    template<typename T> struct Nested { int int_nested; }; \n"
            "    int int_enclosing;\n"
            "};\n"
            "\n"
            "Enclosing<int>::Nested<int> c;"
1008 1009 1010 1011
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("Nested")
            << QLatin1String("int_nested"));
1012

1013
    QTest::newRow("instantiate_nested_class_when_enclosing_is_template") << _(
1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031
            "struct Foo \n"
            "{\n"
            "    int foo_i;\n"
            "};\n"
            "\n"
            "template <typename T>\n"
            "struct Enclosing\n"
            "{\n"
            "    struct Nested\n"
            "    {\n"
            "        T nested_t;\n"
            "    } nested;\n"
            "\n"
            "    T enclosing_t;\n"
            "};\n"
            "\n"
            "Enclosing<Foo> enclosing;\n"
            "@\n"
1032 1033 1034
        ) << _("enclosing.nested.nested_t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("foo_i"));
1035

1036
    QTest::newRow("instantiate_nested_of_nested_class_when_enclosing_is_template") << _(
1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
            "struct Foo \n"
            "{\n"
            "    int foo_i;\n"
            "};\n"
            "\n"
            "template <typename T>\n"
            "struct Enclosing\n"
            "{\n"
            "    struct Nested\n"
            "    {\n"
            "        T nested_t;\n"
            "        struct NestedNested\n"
            "        {\n"
            "            T nestedNested_t;\n"
            "        } nestedNested;\n"
            "    } nested;\n"
            "\n"
            "    T enclosing_t;\n"
            "};\n"
            "\n"
            "Enclosing<Foo> enclosing;\n"
            "@\n"
1059 1060 1061
        ) << _("enclosing.nested.nestedNested.nestedNested_t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("foo_i"));
1062

1063
    QTest::newRow("instantiate_template_with_default_argument_type") << _(
1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076
            "struct Foo\n"
            "{\n"
            "    int bar;\n"
            "};\n"
            "\n"
            "template <typename T = Foo>\n"
            "struct Template\n"
            "{\n"
            "    T t;\n"
            "};\n"
            "\n"
            "Template<> templateWithDefaultTypeOfArgument;\n"
            "@\n"
1077 1078 1079
        ) << _("templateWithDefaultTypeOfArgument.t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1080

1081
    QTest::newRow("instantiate_template_with_default_argument_type_as_template") << _(
1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098
            "struct Foo\n"
            "{\n"
            "    int bar;\n"
            "};\n"
            "\n"
            "template <typename T>\n"
            "struct TemplateArg\n"
            "{\n"
            "    T t;\n"
            "};\n"
            "template <typename T, typename S = TemplateArg<T> >\n"
            "struct Template\n"
            "{\n"
            "    S s;\n"
            "};\n"
            "\n"
            "Template<Foo> templateWithDefaultTypeOfArgument;\n"
1099
            "@\n"
1100 1101 1102
        ) << _("templateWithDefaultTypeOfArgument.s.t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1103

1104
    QTest::newRow("typedef_of_pointer") << _(
1105 1106 1107 1108 1109 1110
            "struct Foo { int bar; };\n"
            "typedef Foo *FooPtr;\n"
            "void main()\n"
            "{\n"
            "   FooPtr ptr;\n"
            "   @\n"
1111 1112 1113 1114
            "}"
        ) << _("ptr->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1115

1116
    QTest::newRow("typedef_of_pointer_inside_function") << _(
1117 1118 1119 1120 1121 1122
            "struct Foo { int bar; };\n"
            "void f()\n"
            "{\n"
            "   typedef Foo *FooPtr;\n"
            "   FooPtr ptr;\n"
            "   @\n"
1123 1124 1125 1126
            "}"
        ) << _("ptr->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1127

1128
    QTest::newRow("typedef_is_inside_function_before_declaration_block") << _(
1129 1130 1131 1132 1133 1134 1135 1136 1137
            "struct Foo { int bar; };\n"
            "void f()\n"
            "{\n"
            "   typedef Foo *FooPtr;\n"
            "   if (true) {\n"
            "       FooPtr ptr;\n"
            "       @\n"
            "   }"
            "}"
1138 1139 1140
        ) << _("ptr->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1141

1142
    QTest::newRow("resolve_complex_typedef_with_template") << _(
1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162
            "template <typename T>\n"
            "struct Template2\n"
            "{\n"
            "    typedef typename T::template Template1<T>::TT TemplateTypedef;\n"
            "    TemplateTypedef templateTypedef;\n"
            "};\n"
            "struct Foo\n"
            "{\n"
            "    int bar;\n"
            "    template <typename T>\n"
            "    struct Template1\n"
            "    {\n"
            "        typedef T TT;\n"
            "    };\n"
            "};\n"
            "void fun()\n"
            "{\n"
            "    Template2<Foo> template2;\n"
            "    @\n"
            "}\n"
1163 1164 1165 1166
        ) << _("template2.templateTypedef.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar")
            << QLatin1String("Template1"));
1167

1168
    QTest::newRow("template_specialization_with_pointer") << _(
1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180
            "template <typename T>\n"
            "struct Template\n"
            "{\n"
            "    T variable;\n"
            "};\n"
            "template <typename T>\n"
            "struct Template<T *>\n"
            "{\n"
            "    T *pointer;\n"
            "};\n"
            "Template<int*> templ;\n"
            "@\n"
1181 1182 1183
        ) << _("templ.") << (QStringList()
            << QLatin1String("Template")
            << QLatin1String("pointer"));
1184

1185
    QTest::newRow("typedef_using_templates1") << _(
1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215
            "namespace NS1\n"
            "{\n"
            "template<typename T>\n"
            "struct NS1Struct\n"
            "{\n"
            "    typedef T *pointer;\n"
            "    pointer bar;\n"
            "};\n"
            "}\n"
            "namespace NS2\n"
            "{\n"
            "using NS1::NS1Struct;\n"
            "\n"
            "template <typename T>\n"
            "struct NS2Struct\n"
            "{\n"
            "    typedef NS1Struct<T> NS1StructTypedef;\n"
            "    typedef typename NS1StructTypedef::pointer pointer;\n"
            "    pointer p;\n"
            "};\n"
            "}\n"
            "struct Foo\n"
            "{\n"
            "    int bar;\n"
            "};\n"
            "void fun()\n"
            "{\n"
            "    NS2::NS2Struct<Foo> s;\n"
            "    @\n"
            "}\n"
1216 1217 1218
        ) << _("s.p->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1219

1220
    QTest::newRow("typedef_using_templates2") << _(
1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250
            "namespace NS1\n"
            "{\n"
            "template<typename T>\n"
            "struct NS1Struct\n"
            "{\n"
            "    typedef T *pointer;\n"
            "    pointer bar;\n"
            "};\n"
            "}\n"
            "namespace NS2\n"
            "{\n"
            "using NS1::NS1Struct;\n"
            "\n"
            "template <typename T>\n"
            "struct NS2Struct\n"
            "{\n"
            "    typedef NS1Struct<T> NS1StructTypedef;\n"
            "    typedef typename NS1StructTypedef::pointer pointer;\n"
            "    pointer p;\n"
            "};\n"
            "}\n"
            "struct Foo\n"
            "{\n"
            "    int bar;\n"
            "};\n"
            "void fun()\n"
            "{\n"
            "    NS2::NS2Struct<Foo>::pointer p;\n"
            "    @\n"
            "}\n"
1251 1252 1253
        ) << _("p->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1254

1255
    QTest::newRow("namespace_alias_with_many_namespace_declarations") << _(
1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280
            "namespace NS1\n"
            "{\n"
            "namespace NS2\n"
            "{\n"
            "struct Foo1\n"
            "{\n"
            "    int bar1;\n"
            "};\n"
            "}\n"
            "}\n"
            "namespace NS1\n"
            "{\n"
            "namespace NS2\n"
            "{\n"
            "struct Foo2\n"
            "{\n"
            "    int bar2;\n"
            "};\n"
            "}\n"
            "}\n"
            "namespace NS = NS1::NS2;\n"
            "int main()\n"
            "{\n"
            "    @\n"
            "}\n"
1281 1282 1283
        ) << _("NS::") << (QStringList()
            << QLatin1String("Foo1")
            << QLatin1String("Foo2"));
1284

1285
    QTest::newRow("QTCREATORBUG9098") << _(
1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301
            "template <typename T>\n"
            "class B\n"
            "{\n"
            "public:\n"
            "    C<T> c;\n"
            "};\n"
            "template <typename T>\n"
            "class A\n"
            "{\n"
            "public:\n"
            "    B<T> b;\n"
            "    void fun()\n"
            "    {\n"
            "       @\n"
            "    }\n"
            "};\n"
1302 1303 1304
        ) << _("b.") << (QStringList()
            << QLatin1String("c")
            << QLatin1String("B"));
1305

1306
    QTest::newRow("type_and_using_declaration: type and using declaration inside function") << _(
1307 1308 1309 1310 1311 1312 1313 1314 1315
            "namespace NS\n"
            "{\n"
            "struct C { int m; };\n"
            "}\n"
            "void foo()\n"
            "{\n"
            "    using NS::C;\n"
            "    C c;\n"
            "    @\n"
1316 1317 1318 1319
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1320

1321 1322
    QTest::newRow("type_and_using_declaration: type and using declaration in global "
                  "namespace") << _(
1323 1324 1325 1326 1327 1328 1329 1330 1331
            "namespace NS\n"
            "{\n"
            "struct C { int m; };\n"
            "}\n"
            "using NS::C;\n"
            "void foo()\n"
            "{\n"
            "    C c;\n"
            "    @\n"
1332 1333 1334 1335
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1336

1337 1338
    QTest::newRow("type_and_using_declaration: type in global namespace and using declaration in "
                  "NS namespace") << _(
1339 1340 1341 1342 1343 1344 1345 1346 1347
            "struct C { int m; };\n"
            "namespace NS\n"
            "{\n"
            "   using ::C;\n"
            "   void foo()\n"
            "   {\n"
            "       C c;\n"
            "       @\n"
            "   }\n"
1348 1349 1350 1351
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1352

1353 1354
    QTest::newRow("type_and_using_declaration: type in global namespace and using declaration "
                  "inside function in NS namespace") << _(
1355 1356 1357 1358 1359 1360 1361 1362 1363
            "struct C { int m; };\n"
            "namespace NS\n"
            "{\n"
            "   void foo()\n"
            "   {\n"
            "       using ::C;\n"
            "       C c;\n"
            "       @\n"
            "   }\n"
1364 1365 1366 1367
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1368

1369 1370
    QTest::newRow("type_and_using_declaration: type inside namespace NS1 and using declaration in "
                  "function inside NS2 namespace") << _(
1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382
            "namespace NS1\n"
            "{\n"
            "struct C { int m; };\n"
            "}\n"
            "namespace NS2\n"
            "{\n"
            "   void foo()\n"
            "   {\n"
            "       using NS1::C;\n"
            "       C c;\n"
            "       @\n"
            "   }\n"
1383 1384 1385 1386
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1387

1388 1389
    QTest::newRow("type_and_using_declaration: type inside namespace NS1 and using declaration "
                  "inside NS2 namespace") << _(
1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401
            "namespace NS1\n"
            "{\n"
            "struct C { int m; };\n"
            "}\n"
            "namespace NS2\n"
            "{\n"
            "   using NS1::C;\n"
            "   void foo()\n"
            "   {\n"
            "       C c;\n"
            "       @\n"
            "   }\n"
1402 1403 1404 1405
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));