cppcompletion_test.cpp 78 KB
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/****************************************************************************
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**
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** Copyright (C) 2014 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/basetexteditor.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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        QVERIFY(succeededSoFar());
        m_succeededSoFar = false;

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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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        QVERIFY(document);
        QVERIFY(document->diagnosticMessages().isEmpty());
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        m_snapshot.insert(document);
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        if (!textToInsert.isEmpty())
            insertText(textToInsert);
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        m_succeededSoFar = true;
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    }
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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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                                               ProjectPart::HeaderPaths());
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        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);
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    QVERIFY(test.succeededSoFar());
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    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");
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    QVERIFY(test.succeededSoFar());
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    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");
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    QVERIFY(test.succeededSoFar());
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    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);
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    QVERIFY(test.succeededSoFar());
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    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);
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    QVERIFY(test.succeededSoFar());
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    QStringList actualCompletions = test.getCompletions();
    actualCompletions.sort();
    expectedCompletions.sort();

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    QEXPECT_FAIL("enum_in_function_in_struct_in_function", "doesn't work", Abort);
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    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"
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            "        @;\n"
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            "}\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"
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            "        @;\n"
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            "}\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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626
            "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"
627
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            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Final")
            << QLatin1String("finalMember"));
633

634
    QTest::newRow("template_as_base: base as nested template name in non-template") << _(
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641
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643
            "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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649
            "}"
        ) << _("c.") << (QStringList()
            << QLatin1String("Data")
            << QLatin1String("dataMember")
            << QLatin1String("Final")
            << QLatin1String("finalMember"));
650

651
    QTest::newRow("template_as_base: base as template name in non-template") << _(
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658
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660
            "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"
661
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667
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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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679
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681
            "struct Global\n"
            "{\n"
            "    int int_global;\n"
            "};\n"
            "\n"
            "struct Final : ::Global\n"
            "{\n"
            "   int int_final;\n"
            "};\n"
            "\n"
            "Final c;\n"
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688
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_global")
            << QLatin1String("int_final")
            << QLatin1String("Final")
            << QLatin1String("Global"));

689
    QTest::newRow("use_global_identifier_as_base_class: derived is inside namespace. "
690
                  "base as global") << _(
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701
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            "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"
705
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            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_global")
            << QLatin1String("int_final")
            << QLatin1String("Final")
            << QLatin1String("Global"));
711

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733
734
    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"));
735

736
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class") << _(
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741
742
            "struct A : A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "\n"
            "A c;\n"
743
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745
746
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
747

748
749
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class. "
                  "class is in namespace") << _(
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756
757
758
            "namespace NS\n"
            "{\n"
            "struct A : A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "}\n"
            "\n"
            "NS::A c;\n"
759
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762
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
763

764
765
    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") << _(
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771
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774
            "namespace NS\n"
            "{\n"
            "struct A : NS::A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "}\n"
            "\n"
            "NS::A c;\n"
775
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778
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
779

780
781
    QTest::newRow("base_class_has_name_the_same_as_derived: base class has the same name as "
                  "derived but in different namespace") << _(
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787
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797
            "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"
798
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802
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_ns1_a")
            << QLatin1String("int_ns2_a")
            << QLatin1String("A"));
803

804
805
    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") << _(
806
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820
821
            "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"
822
823
824
825
826
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_enclosing_a")
            << QLatin1String("int_ns2_a")
            << QLatin1String("A"));
827

828
829
    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") << _(
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834
835
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837
838
839
840
841
842
843
844
845
            "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"
846
847
848
849
850
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_enclosing_base_a")
            << QLatin1String("int_enclosing_derived_a")
            << QLatin1String("A"));
851

852
853
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class. "
                  "class is a template") << _(
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857
858
859
860
            "template <typename T>\n"
            "struct A : A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "\n"
            "A<int> c;\n"
861
862
863
864
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
865

866
    QTest::newRow("cyclic_inheritance: direct cyclic inheritance") << _(
867
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869
870
871
872
            "struct B;\n"
            "struct A : B { int _a; };\n"
            "struct B : A { int _b; };\n"
            "\n"
            "A c;\n"
            "@\n"
873
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875
876
877
        ) << _("c.") << (QStringList()
            << QLatin1String("A")
            << QLatin1String("_a")
            << QLatin1String("B")
            << QLatin1String("_b"));
878

879
    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance") << _(
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884
885
886
            "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"
887
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891
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895
        ) << _("c.") << (QStringList()
            << QLatin1String("A")
            << QLatin1String("_a")
            << QLatin1String("B")
            << QLatin1String("_b")
            << QLatin1String("C")
            << QLatin1String("_c"));

    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance") << _(
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900
901
902
            "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"
903
904
905
906
907
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911
        ) << _("c.") << (QStringList()
            << QLatin1String("A")
            << QLatin1String("_a")
            << QLatin1String("B")
            << QLatin1String("_b")
            << QLatin1String("C")
            << QLatin1String("_c"));

    QTest::newRow("cyclic_inheritance: direct cyclic inheritance with templates") << _(
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917
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919
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922
923
924
            "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"
925
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928
929
930
931
932
        ) << _("c.") << (QStringList()
            << QLatin1String("D")
            << QLatin1String("_d_t")
            << QLatin1String("_d_s")
            << QLatin1String("C")
            << QLatin1String("_c_t"));

    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance with templates") << _(
933
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941
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943
944
945
946
947
948
949
            "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"
950
951
952
953
954
955
956
957
958
        ) << _("c.") << (QStringList()
            << QLatin1String("D")
            << QLatin1String("_d_t")
            << QLatin1String("_d_s")
            << QLatin1String("C")
            << QLatin1String("_c_t")
            << QLatin1String("B")
            << QLatin1String("_b_t"));

959
    QTest::newRow("cyclic_inheritance: direct cyclic inheritance with templates. "
960
                  "more complex situation") << _(
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
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980
981
982
983
984
985
986
987
           "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"
988
989
990
991
992
993
994
995
        ) << _("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") << _(
996
997
998
999
1000
1001
1002
1003
            "template<typename T>\n"
            "struct Enclosing\n"
            "{\n"
            "    struct Nested { int int_nested; }; \n"
            "    int int_enclosing;\n"
            "};\n"
            "\n"
            "Enclosing<int>::Nested c;"
1004
1005
1006
1007
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("Nested")
            << QLatin1String("int_nested"));
1008

1009
1010
    QTest::newRow("enclosing_template_class: nested template class with enclosing template "
                  "class") << _(
1011
1012
1013
1014
1015
1016
1017
1018
            "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;"
1019
1020
1021
1022
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("Nested")
            << QLatin1String("int_nested"));
1023

1024
    QTest::newRow("instantiate_nested_class_when_enclosing_is_template") << _(
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
            "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"
1043
1044
1045
        ) << _("enclosing.nested.nested_t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("foo_i"));
1046

1047
    QTest::newRow("instantiate_nested_of_nested_class_when_enclosing_is_template") << _(
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
            "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"
1070
1071
1072
        ) << _("enclosing.nested.nestedNested.nestedNested_t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("foo_i"));
1073

1074
    QTest::newRow("instantiate_template_with_default_argument_type") << _(
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
            "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"
1088
1089
1090
        ) << _("templateWithDefaultTypeOfArgument.t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1091

1092
    QTest::newRow("instantiate_template_with_default_argument_type_as_template") << _(
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
            "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"
1110
            "@\n"
1111
1112
1113
        ) << _("templateWithDefaultTypeOfArgument.s.t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1114

1115
    QTest::newRow("typedef_of_pointer") << _(
1116
1117
1118
1119
1120
1121
            "struct Foo { int bar; };\n"
            "typedef Foo *FooPtr;\n"
            "void main()\n"
            "{\n"
            "   FooPtr ptr;\n"
            "   @\n"
1122
1123
1124
1125
            "}"
        ) << _("ptr->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1126

1127
    QTest::newRow("typedef_of_pointer_inside_function") << _(
1128
1129
1130
1131
1132
1133
            "struct Foo { int bar; };\n"
            "void f()\n"
            "{\n"
            "   typedef Foo *FooPtr;\n"
            "   FooPtr ptr;\n"
            "   @\n"
1134
1135
1136
1137
            "}"
        ) << _("ptr->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1138

1139
    QTest::newRow("typedef_is_inside_function_before_declaration_block") << _(
1140
1141
1142
1143
1144
1145
1146
1147
1148
            "struct Foo { int bar; };\n"
            "void f()\n"
            "{\n"
            "   typedef Foo *FooPtr;\n"
            "   if (true) {\n"
            "       FooPtr ptr;\n"
            "       @\n"
            "   }"
            "}"
1149
1150
1151
        ) << _("ptr->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1152

1153
    QTest::newRow("resolve_complex_typedef_with_template") << _(
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
            "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"
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1177
        ) << _("template2.templateTypedef.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar")
            << QLatin1String("Template1"));
1178

1179
    QTest::newRow("template_specialization_with_pointer") << _(
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1191
            "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"
1192
1193
1194
        ) << _("templ.") << (QStringList()
            << QLatin1String("Template")
            << QLatin1String("pointer"));
1195

1196
    QTest::newRow("typedef_using_templates1") << _(
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            "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"
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        ) << _("s.p->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1230

1231
    QTest::newRow("typedef_using_templates2") << _(
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1240
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            "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"
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        ) << _("p->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1265

1266
    QTest::newRow("namespace_alias_with_many_namespace_declarations") << _(
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            "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"
1292
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        ) << _("NS::") << (QStringList()
            << QLatin1String("Foo1")
            << QLatin1String("Foo2"));
1295

1296
    QTest::newRow("QTCREATORBUG9098") << _(
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            "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"
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        ) << _("b.") << (QStringList()
            << QLatin1String("c")
            << QLatin1String("B"));
1316

1317
    QTest::newRow("type_and_using_declaration: type and using declaration inside function") << _(
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            "namespace NS\n"
            "{\n"
            "struct C { int m; };\n"
            "}\n"
            "void foo()\n"
            "{\n"
            "    using NS::C;\n"
            "    C c;\n"
            "    @\n"
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            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1331

1332
1333
    QTest::newRow("type_and_using_declaration: type and using declaration in global "
                  "namespace") << _(
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            "namespace NS\n"
            "{\n"
            "struct C { int m; };\n"
            "}\n"
            "using NS::C;\n"
            "void foo()\n"
            "{\n"
            "    C c;\n"
            "    @\n"
1343
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            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1347

1348
1349
    QTest::newRow("type_and_using_declaration: type in global namespace and using declaration in "
                  "NS namespace") << _(
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            "struct C { int m; };\n"
            "namespace NS\n"
            "{\n"
            "   using ::C;\n"
            "   void foo()\n"
            "   {\n"
            "       C c;\n"
            "       @\n"
            "   }\n"
1359
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            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1363

1364
1365
    QTest::newRow("type_and_using_declaration: type in global namespace and using declaration "
                  "inside function in NS namespace") << _(
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            "struct C { int m; };\n"
            "namespace NS\n"
            "{\n"
            "   void foo()\n"
            "   {\n"
            "       using ::C;\n"
            "       C c;\n"
            "       @\n"
            "   }\n"
1375
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            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1379

1380
1381
    QTest::newRow("type_and_using_declaration: type inside namespace NS1 and using declaration in "
                  "function inside NS2 namespace") << _(
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            "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"
1394
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1397
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1398

1399
1400
    QTest::newRow("type_and_using_declaration: type inside namespace NS1 and using declaration "
                  "inside NS2 namespace") << _(
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1412
            "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"
1413
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1415
1416
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1417

1418
    QTest::newRow("instantiate_template_with_anonymous_class") << _(
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1425
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            "template <typename T>\n"
            "struct S\n"
            "{\n"
            "    union { int i; char c; };\n"
            "};\n"
            "void fun()\n"
            "{\n"
            "   S<int> s;\n"
            "   @\n"
            "}\n"