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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
****************************************************************************/
#include "CppDocument.h"
#include <QDebug>
using namespace CPlusPlus;
Utils::FilePaths DependencyTable::filesDependingOn(const Utils::FilePath &fileName) const
{
Utils::FilePaths deps;
int index = fileIndex.value(fileName, -1);
if (index == -1)
return deps;
for (int i = 0; i < files.size(); ++i) {
const QBitArray &bits = includeMap.at(i);
if (bits.testBit(index))
deps.append(files.at(i));
}
return deps;
}
void DependencyTable::build(const Snapshot &snapshot)
{
files.clear();
fileIndex.clear();
includes.clear();
includeMap.clear();
const int documentCount = snapshot.size();
files.resize(documentCount);
includeMap.resize(documentCount);
int i = 0;
for (Snapshot::const_iterator it = snapshot.begin(); it != snapshot.end();
++it, ++i) {
files[i] = it.key();
fileIndex[it.key()] = i;
}
for (int i = 0; i < files.size(); ++i) {
const Utils::FilePath &fileName = files.at(i);
if (Document::Ptr doc = snapshot.document(fileName)) {
QBitArray bitmap(files.size());
QList<int> directIncludes;
const QStringList documentIncludes = doc->includedFiles();
foreach (const QString &includedFile, documentIncludes) {
int index = fileIndex.value(Utils::FilePath::fromString(includedFile));
if (index == -1)
continue;
else if (! directIncludes.contains(index))
directIncludes.append(index);
bitmap.setBit(index, true);
}
includeMap[i] = bitmap;
includes[i] = directIncludes;
}
}
bool changed;
do {
changed = false;
for (int i = 0; i < files.size(); ++i) {
QBitArray bitmap = includeMap.value(i);
QBitArray previousBitmap = bitmap;
foreach (int includedFileIndex, includes.value(i)) {
bitmap |= includeMap.value(includedFileIndex);
}
if (bitmap != previousBitmap) {
includeMap[i] = bitmap;
changed = true;
}
}
} while (changed);
}
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