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-/****************************************************************************
-**
-** Copyright (C) 2023 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qbs.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** 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 The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://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 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#pragma once
-
-#include <QtGlobal>
-
-namespace qbs {
-class SetupProjectParameters;
-namespace Internal {
-class Evaluator;
-class Item;
-class Logger;
-
-// This class comprises functions for collecting values attached to module properties
-// in different contexts.
-// For example, in the Qt.core module you will find a property binding such as this:
-// cpp.defines: "QT_CORE_LIB"
-// while in the Qt.widgets module, it will look like this:
-// cpp.defines: "QT_WIDGETS_LIB"
-// A product with a dependency on both these modules will end up with a value of
-// ["QT_WIDGETS_LIB", "QT_CORE_LIB"], plus potentially other defines set elsewhere.
-// Each of these values is assigned a priority that roughly corresponds to the "level" at which
-// the module containing the property binding resides in the dependency hierarchy.
-// For list properties, the priorities determine the order of the respecive values in the
-// final array, for scalar values they determine which one survives. Different scalar values
-// with the same priority trigger a warning message.
-// Since the right-hand side of a binding can refer to properties of the surrounding context,
-// each such value gets its own scope.
-class ModulePropertyMerger
-{
-public:
- ModulePropertyMerger(const SetupProjectParameters &parameters, Evaluator &evaluator,
- Logger &logger);
- ~ModulePropertyMerger();
-
- // This function is called when a module is loaded via a Depends item.
- // loadingItem is the product or module containing the Depends item.
- // loadingName is the name of that module. It is used as a tie-breaker for list property values
- // with equal priority.
- // localInstance is the module instance placeholder in the ItemValue of a property binding,
- // i.e. the "cpp" in "cpp.defines".
- // globalInstance is the actual module into which the properties from localInstance get merged.
- void mergeFromLocalInstance(const Item *productItem, Item *loadingItem,
- const QString &loadingName, const Item *localInstance,
- Item *globalInstance);
-
- // This function is called after all dependencies have been resolved. It uses its global
- // knowledge of module priorities to potentially adjust the order of list values or
- // favor different scalar values. It can also remove previously merged-in values again;
- // this can happen if a module fails to load after it already merged some values, or
- // if it fails validation in the end.
- void doFinalMerge(const Item *productItem);
-
- void printProfilingInfo(int indent);
-
-private:
- class Private;
- Private * const d;
-};
-
-} // namespace Internal
-} // namespace qbs