Commit 97e199ea authored by Fawzi Mohamed's avatar Fawzi Mohamed
Browse files

utils: adding Utils::Function to support polymorphic function wrappers



Utils::Function wraps std::function or std::tr1::function to give
polymorphic function wrappers, i.e. a way to accept function pointers
or functors as arguments as long as they have the correct signature.

Change-Id: I4032264cf6b84ef647f790c566543633b4d0653b
Reviewed-by: default avatarhjk <hjk121@nokiamail.com>
parent c2d21739
/****************************************************************************
**
** Copyright (C) 2013 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://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "function.h"
namespace {
// just compilation tests
void test();
void functionUser(Utils::function<int()> generator, Utils::function<void(int)> consumer)
{
consumer(generator());
}
struct GenFunctor
{
int operator()() { return 29; }
};
struct ConsumerFunctor
{
void operator()(int) {}
};
int generatorF()
{
return 42;
}
void consumerF(int i)
{
if (i < 0)
test();
}
void test()
{
functionUser(GenFunctor(), ConsumerFunctor());
functionUser(&generatorF, &consumerF);
}
} // end namespace
/****************************************************************************
**
** Copyright (C) 2013 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://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef QTC_FUNCTION_H
#define QTC_FUNCTION_H
#include <functional>
#if !(__cplusplus > 199711L || __GXX_EXPERIMENTAL_CXX0X__ || _MSC_VER >= 1600 || defined( _LIBCPP_VERSION ))
#define USE_TR1
#endif
#ifdef USE_TR1
# ifdef __GNUC__
# include <tr1/functional>
# endif
namespace Utils { using std::tr1::function; }
#else
namespace Utils { using std::function; }
#endif
#endif // QTC_FUNCTION_H
......@@ -84,7 +84,8 @@ SOURCES += $$PWD/environment.cpp \
$$PWD/tooltip/tooltip.cpp \
$$PWD/tooltip/tips.cpp \
$$PWD/tooltip/tipcontents.cpp \
$$PWD/unixutils.cpp
$$PWD/unixutils.cpp \
$$PWD/function.cpp
win32 {
SOURCES += \
......@@ -175,7 +176,8 @@ HEADERS += \
$$PWD/tooltip/reuse.h \
$$PWD/tooltip/effects.h \
$$PWD/unixutils.h \
$$PWD/qtcoverride.h
$$PWD/qtcoverride.h \
$$PWD/function.h
FORMS += $$PWD/filewizardpage.ui \
$$PWD/projectintropage.ui \
......
......@@ -87,6 +87,8 @@ QtcLibrary {
"filterlineedit.h",
"flowlayout.cpp",
"flowlayout.h",
"function.cpp",
"function.h",
"historycompleter.cpp",
"historycompleter.h",
"hostosinfo.h",
......
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