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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** 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://www.qt.io/licensing. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "cpptoolsplugin.h"
#include "cpplocalsymbols.h"
#include "cppsemanticinfo.h"
#include <cplusplus/Overview.h>
#include <utils/algorithm.h>
#include <QtTest>
namespace {
class FindFirstFunctionDefinition: protected CPlusPlus::ASTVisitor
{
public:
FindFirstFunctionDefinition(CPlusPlus::TranslationUnit *translationUnit)
: ASTVisitor(translationUnit)
, m_definition(0)
{}
CPlusPlus::FunctionDefinitionAST *operator()()
{
accept(translationUnit()->ast());
return m_definition;
}
private:
bool preVisit(CPlusPlus::AST *ast)
{
if (CPlusPlus::FunctionDefinitionAST *f = ast->asFunctionDefinition()) {
m_definition = f;
return false;
}
return true;
}
private:
CPlusPlus::FunctionDefinitionAST *m_definition;
};
struct Result
{
Result() : line(0), column(0), length(0) {}
Result(const QByteArray &name, unsigned line, unsigned column, unsigned length)
: name(name), line(line), column(column), length(length)
{}
QByteArray name;
unsigned line;
unsigned column;
unsigned length;
bool operator==(const Result &other) const
{
return name == other.name
&& line == other.line
&& column == other.column
&& length == other.length;
}
static Result fromHighlightingResult(const CPlusPlus::Symbol *symbol,
TextEditor::HighlightingResult result)
{
const QByteArray name = CPlusPlus::Overview().prettyName(symbol->name()).toLatin1();
return Result(name, result.line, result.column, result.length);
}
static QList<Result> fromLocalUses(CppTools::SemanticInfo::LocalUseMap localUses)
{
QList<Result> result;
CppTools::SemanticInfo::LocalUseIterator it(localUses);
while (it.hasNext()) {
it.next();
const CPlusPlus::Symbol *symbol = it.key();
const QList<CppTools::SemanticInfo::Use> &uses = it.value();
foreach (const CppTools::SemanticInfo::Use &use, uses)
result << fromHighlightingResult(symbol, use);
}
Utils::sort(result, [](const Result &r1, const Result &r2) -> bool {
if (r1.line == r2.line)
return r1.column < r2.column;
return r1.line < r2.line;
});
return result;
}
};
} // anonymous namespace
Q_DECLARE_METATYPE(Result)
Q_DECLARE_METATYPE(QList<Result>)
QT_BEGIN_NAMESPACE
namespace QTest {
template<>
char *toString(const Result &result)
{
QByteArray ba = "Result(";
ba += "_(\"" + result.name + "\"), ";
ba += QByteArray::number(result.line) + ", ";
ba += QByteArray::number(result.column) + ", ";
ba += QByteArray::number(result.length) + ")";
return qstrdup(ba.data());
}
}
QT_END_NAMESPACE
namespace CppTools {
namespace Internal {
void CppToolsPlugin::test_cpplocalsymbols_data()
{
QTest::addColumn<QByteArray>("source");
QTest::addColumn<QList<Result>>("expectedUses");
typedef QByteArray _;
QTest::newRow("basic")
<< _("int f(int arg)\n"
"{\n"
" int local;\n"
" g(&local);\n"
" return local + arg;\n"
"}\n")
<< (QList<Result>()
<< Result(_("arg"), 0, 10, 3)
<< Result(_("local"), 2, 9, 5)
<< Result(_("local"), 3, 8, 5)
<< Result(_("local"), 4, 12, 5)
<< Result(_("arg"), 4, 20, 3));
QTest::newRow("lambda")
<< _("void f()\n"
"{\n"
" auto func = [](int arg) { return arg; };\n"
" func(1);\n"
"}\n")
<< (QList<Result>()
<< Result(_("func"), 2, 10, 4)
<< Result(_("arg"), 2, 24, 3)
<< Result(_("arg"), 2, 38, 3)
<< Result(_("func"), 3, 5, 4));
}
void CppToolsPlugin::test_cpplocalsymbols()
{
QFETCH(QByteArray, source);
QFETCH(QList<Result>, expectedUses);
CPlusPlus::Document::Ptr document = CPlusPlus::Document::create(QLatin1String("test.cpp"));
document->setUtf8Source(source);
document->check();
QVERIFY(document->diagnosticMessages().isEmpty());
QVERIFY(document->translationUnit());
QVERIFY(document->translationUnit()->ast());
QVERIFY(document->globalNamespace());
FindFirstFunctionDefinition find(document->translationUnit());
CPlusPlus::DeclarationAST *functionDefinition = find();
LocalSymbols localSymbols(document, functionDefinition);
const QList<Result> actualUses = Result::fromLocalUses(localSymbols.uses);
// foreach (const Result &result, actualUses)
// qDebug() << QTest::toString(result);
QCOMPARE(actualUses, expectedUses);
}
} // namespace Internal
} // namespace CppTools
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