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/****************************************************************************
**
** Copyright (C) 2018 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.
**
****************************************************************************/
#pragma once
#include "usedmacro.h"
#include "sourceentry.h"
#include <compilermacro.h>
namespace ClangBackEnd {
template<typename InputIterator1, typename InputIterator2, typename OutputIterator, typename Compare>
inline OutputIterator set_greedy_intersection(InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
OutputIterator result,
Compare comp)
{
while (first1 != last1 && first2 != last2)
if (comp(*first1, *first2))
++first1;
else if (comp(*first2, *first1))
++first2;
else {
*result = *first1;
++first1;
++result;
}
return result;
}
template<typename InputIterator1, typename InputIterator2, typename OutputIterator, typename Compare>
inline OutputIterator fill_with_second_values(InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
OutputIterator result,
Compare comp)
{
while (first1 != last1 && first2 != last2)
if (comp(*first1, *first2)) {
*result = *first1;
++first1;
++result;
} else if (comp(*first2, *first1))
++first2;
else {
*result = *first2;
++first1;
++result;
}
return result;
}
class UsedMacroFilter
{
public:
struct Includes
{
FilePathIds project;
FilePathIds system;
};
UsedMacroFilter(const SourceEntries &includes,
const UsedMacros &usedMacros,
const CompilerMacros &compilerMacros) {
filterSources(includes);
systemUsedMacros = filterUsedMarcos(usedMacros, systemIncludes);
projectUsedMacros = filterUsedMarcos(usedMacros, projectIncludes);
filter(compilerMacros);
}
void filterSources(const SourceEntries &sources) {
systemIncludes.reserve(sources.size());
projectIncludes.reserve(sources.size());
topSystemIncludes.reserve(sources.size() / 10);
topProjectIncludes.reserve(sources.size() / 10);
this->sources.reserve(sources.size());
for (SourceEntry source : sources)
filterSource(source);
}
void filter(const CompilerMacros &compilerMacros)
{
CompilerMacros indexedCompilerMacro = compilerMacros;
std::sort(indexedCompilerMacro.begin(),
indexedCompilerMacro.end(),
[](const CompilerMacro &first, const CompilerMacro &second) {
return std::tie(first.key, first.value) < std::tie(second.key, second.value);
});
systemCompilerMacros = filterCompilerMacros(indexedCompilerMacro, systemUsedMacros);
projectCompilerMacros = filterCompilerMacros(indexedCompilerMacro, projectUsedMacros);
}
private:
void filterSource(SourceEntry source) {
if (source.hasMissingIncludes == HasMissingIncludes::Yes)
return;
switch (source.sourceType) {
case SourceType::TopSystemInclude:
topSystemIncludes.emplace_back(source.sourceId);
systemIncludes.emplace_back(source.sourceId);
sources.emplace_back(source.sourceId);
break;
case SourceType::SystemInclude:
systemIncludes.emplace_back(source.sourceId);
sources.emplace_back(source.sourceId);
break;
case SourceType::TopProjectInclude:
topProjectIncludes.emplace_back(source.sourceId);
projectIncludes.emplace_back(source.sourceId);
sources.emplace_back(source.sourceId);
break;
case SourceType::ProjectInclude:
projectIncludes.emplace_back(source.sourceId);
sources.emplace_back(source.sourceId);
break;
case SourceType::UserInclude:
case SourceType::Source:
break;
}
}
static Utils::SmallStringVector filterUsedMarcos(const UsedMacros &usedMacros,
const FilePathIds &filePathId)
{
struct Compare
{
bool operator()(const UsedMacro &usedMacro, FilePathId filePathId)
{
return usedMacro.filePathId < filePathId;
}
bool operator()(FilePathId filePathId, const UsedMacro &usedMacro)
{
return filePathId < usedMacro.filePathId;
}
};
Utils::SmallStringVector filtertedMacros;
filtertedMacros.reserve(usedMacros.size());
set_greedy_intersection(usedMacros.begin(),
usedMacros.end(),
filePathId.begin(),
filePathId.end(),
std::back_inserter(filtertedMacros),
Compare{});
std::sort(filtertedMacros.begin(), filtertedMacros.end());
auto newEnd = std::unique(filtertedMacros.begin(), filtertedMacros.end());
filtertedMacros.erase(newEnd, filtertedMacros.end());
return filtertedMacros;
}
static CompilerMacros filterCompilerMacros(const CompilerMacros &indexedCompilerMacro,
const Utils::SmallStringVector &usedMacros)
{
CompilerMacros filtertedCompilerMacros;
filtertedCompilerMacros.reserve(usedMacros.size());
struct Compare
{
bool operator()(const CompilerMacro &compilerMacro, Utils::SmallStringView usedMacro)
{
return compilerMacro.key < usedMacro;
}
bool operator()(Utils::SmallStringView usedMacro, const CompilerMacro &compilerMacro)
{
return usedMacro < compilerMacro.key;
}
};
fill_with_second_values(usedMacros.begin(),
usedMacros.end(),
indexedCompilerMacro.begin(),
indexedCompilerMacro.end(),
std::back_inserter(filtertedCompilerMacros),
Compare{});
return filtertedCompilerMacros;
}
public:
FilePathIds sources;
FilePathIds projectIncludes;
FilePathIds systemIncludes;
FilePathIds topProjectIncludes;
FilePathIds topSystemIncludes;
Utils::SmallStringVector projectUsedMacros;
Utils::SmallStringVector systemUsedMacros;
CompilerMacros projectCompilerMacros;
CompilerMacros systemCompilerMacros;
};
} // namespace ClangBackEnd
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