cppcompletion_test.cpp 75.5 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/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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        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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                                               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);
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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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    QEXPECT_FAIL("nested_class_in_template_class_QTCREATORBUG-11752",
                 "related to infiniteLoopLocalTypedef_QTCREATORBUG-11999", 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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            "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"
663 664 665 666 667 668 669 670 671 672
            "}"
        ) << _("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") << _(
673 674 675 676 677 678 679 680 681 682 683
            "struct Global\n"
            "{\n"
            "    int int_global;\n"
            "};\n"
            "\n"
            "struct Final : ::Global\n"
            "{\n"
            "   int int_final;\n"
            "};\n"
            "\n"
            "Final c;\n"
684 685 686 687 688 689 690
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_global")
            << QLatin1String("int_final")
            << QLatin1String("Final")
            << QLatin1String("Global"));

691
    QTest::newRow("use_global_identifier_as_base_class: derived is inside namespace. "
692
                  "base as global") << _(
693 694 695 696 697 698 699 700 701 702 703 704 705 706
            "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"
707 708 709 710 711 712
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_global")
            << QLatin1String("int_final")
            << QLatin1String("Final")
            << QLatin1String("Global"));
713

714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736
    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"));
737

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

750 751
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class. "
                  "class is in namespace") << _(
752 753 754 755 756 757 758 759 760
            "namespace NS\n"
            "{\n"
            "struct A : A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "}\n"
            "\n"
            "NS::A c;\n"
761 762 763 764
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
765

766 767
    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") << _(
768 769 770 771 772 773 774 775 776
            "namespace NS\n"
            "{\n"
            "struct A : NS::A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "}\n"
            "\n"
            "NS::A c;\n"
777 778 779 780
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
781

782 783
    QTest::newRow("base_class_has_name_the_same_as_derived: base class has the same name as "
                  "derived but in different namespace") << _(
784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799
            "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"
800 801 802 803 804
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_ns1_a")
            << QLatin1String("int_ns2_a")
            << QLatin1String("A"));
805

806 807
    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") << _(
808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823
            "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"
824 825 826 827 828
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_enclosing_a")
            << QLatin1String("int_ns2_a")
            << QLatin1String("A"));
829

830 831
    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") << _(
832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847
            "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"
848 849 850 851 852
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_enclosing_base_a")
            << QLatin1String("int_enclosing_derived_a")
            << QLatin1String("A"));
853

854 855
    QTest::newRow("base_class_has_name_the_same_as_derived: base class is derived class. "
                  "class is a template") << _(
856 857 858 859 860 861 862
            "template <typename T>\n"
            "struct A : A\n"
            "{\n"
            "   int int_a;\n"
            "};\n"
            "\n"
            "A<int> c;\n"
863 864 865 866
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("int_a")
            << QLatin1String("A"));
867

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

881
    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance") << _(
882 883 884 885 886 887 888
            "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"
889 890 891 892 893 894 895 896 897
        ) << _("c.") << (QStringList()
            << QLatin1String("A")
            << QLatin1String("_a")
            << QLatin1String("B")
            << QLatin1String("_b")
            << QLatin1String("C")
            << QLatin1String("_c"));

    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance") << _(
898 899 900 901 902 903 904
            "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"
905 906 907 908 909 910 911 912 913
        ) << _("c.") << (QStringList()
            << QLatin1String("A")
            << QLatin1String("_a")
            << QLatin1String("B")
            << QLatin1String("_b")
            << QLatin1String("C")
            << QLatin1String("_c"));

    QTest::newRow("cyclic_inheritance: direct cyclic inheritance with templates") << _(
914 915 916 917 918 919 920 921 922 923 924 925 926
            "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"
927 928 929 930 931 932 933 934
        ) << _("c.") << (QStringList()
            << QLatin1String("D")
            << QLatin1String("_d_t")
            << QLatin1String("_d_s")
            << QLatin1String("C")
            << QLatin1String("_c_t"));

    QTest::newRow("cyclic_inheritance: indirect cyclic inheritance with templates") << _(
935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951
            "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"
952 953 954 955 956 957 958 959 960
        ) << _("c.") << (QStringList()
            << QLatin1String("D")
            << QLatin1String("_d_t")
            << QLatin1String("_d_s")
            << QLatin1String("C")
            << QLatin1String("_c_t")
            << QLatin1String("B")
            << QLatin1String("_b_t"));

961
    QTest::newRow("cyclic_inheritance: direct cyclic inheritance with templates. "
962
                  "more complex situation") << _(
963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989
           "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"
990 991 992 993 994 995 996 997
        ) << _("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") << _(
998 999 1000 1001 1002 1003 1004 1005
            "template<typename T>\n"
            "struct Enclosing\n"
            "{\n"
            "    struct Nested { int int_nested; }; \n"
            "    int int_enclosing;\n"
            "};\n"
            "\n"
            "Enclosing<int>::Nested c;"
1006 1007 1008 1009
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("Nested")
            << QLatin1String("int_nested"));
1010

1011 1012
    QTest::newRow("enclosing_template_class: nested template class with enclosing template "
                  "class") << _(
1013 1014 1015 1016 1017 1018 1019 1020
            "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;"
1021 1022 1023 1024
            "@\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("Nested")
            << QLatin1String("int_nested"));
1025

1026
    QTest::newRow("instantiate_nested_class_when_enclosing_is_template") << _(
1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044
            "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"
1045 1046 1047
        ) << _("enclosing.nested.nested_t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("foo_i"));
1048

1049
    QTest::newRow("instantiate_nested_of_nested_class_when_enclosing_is_template") << _(
1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071
            "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"
1072 1073 1074
        ) << _("enclosing.nested.nestedNested.nestedNested_t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("foo_i"));
1075

1076
    QTest::newRow("instantiate_template_with_default_argument_type") << _(
1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089
            "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"
1090 1091 1092
        ) << _("templateWithDefaultTypeOfArgument.t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1093

1094
    QTest::newRow("instantiate_template_with_default_argument_type_as_template") << _(
1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111
            "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"
1112
            "@\n"
1113 1114 1115
        ) << _("templateWithDefaultTypeOfArgument.s.t.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1116

1117
    QTest::newRow("typedef_of_pointer") << _(
1118 1119 1120 1121 1122 1123
            "struct Foo { int bar; };\n"
            "typedef Foo *FooPtr;\n"
            "void main()\n"
            "{\n"
            "   FooPtr ptr;\n"
            "   @\n"
1124 1125 1126 1127
            "}"
        ) << _("ptr->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1128

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

1141
    QTest::newRow("typedef_is_inside_function_before_declaration_block") << _(
1142 1143 1144 1145 1146 1147 1148 1149 1150
            "struct Foo { int bar; };\n"
            "void f()\n"
            "{\n"
            "   typedef Foo *FooPtr;\n"
            "   if (true) {\n"
            "       FooPtr ptr;\n"
            "       @\n"
            "   }"
            "}"
1151 1152 1153
        ) << _("ptr->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1154

1155
    QTest::newRow("resolve_complex_typedef_with_template") << _(
1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175
            "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"
1176 1177 1178 1179
        ) << _("template2.templateTypedef.") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar")
            << QLatin1String("Template1"));
1180

1181
    QTest::newRow("template_specialization_with_pointer") << _(
1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193
            "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"
1194 1195 1196
        ) << _("templ.") << (QStringList()
            << QLatin1String("Template")
            << QLatin1String("pointer"));
1197

1198
    QTest::newRow("typedef_using_templates1") << _(
1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228
            "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"
1229 1230 1231
        ) << _("s.p->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1232

1233
    QTest::newRow("typedef_using_templates2") << _(
1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263
            "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"
1264 1265 1266
        ) << _("p->") << (QStringList()
            << QLatin1String("Foo")
            << QLatin1String("bar"));
1267

1268
    QTest::newRow("namespace_alias_with_many_namespace_declarations") << _(
1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293
            "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"
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        ) << _("NS::") << (QStringList()
            << QLatin1String("Foo1")
            << QLatin1String("Foo2"));
1297

1298
    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"
1315 1316 1317
        ) << _("b.") << (QStringList()
            << QLatin1String("c")
            << QLatin1String("B"));
1318

1319
    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"
1329 1330 1331 1332
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1333

1334 1335
    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"
1345 1346 1347 1348
            "}\n"
        ) << _("c.") << (QStringList()
            << QLatin1String("C")
            << QLatin1String("m"));
1349

1350 1351
    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"