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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "headerpathfilter.h"
#ifndef UNIT_TESTS
#include <coreplugin/icore.h>
#endif
#include <projectexplorer/project.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <QRegularExpression>
#include <utils/algorithm.h>
using namespace ProjectExplorer;
using namespace Utils;
namespace CppEditor::Internal {
void HeaderPathFilter::process()
{
const HeaderPaths &headerPaths = projectPart.headerPaths;
addPreIncludesPath();
for (const HeaderPath &headerPath : headerPaths)
filterHeaderPath(headerPath);
if (useTweakedHeaderPaths != UseTweakedHeaderPaths::No)
tweakHeaderPaths();
}
bool HeaderPathFilter::isProjectHeaderPath(const QString &path) const
{
return path.startsWith(projectDirectory) || path.startsWith(buildDirectory);
}
void HeaderPathFilter::removeGccInternalIncludePaths()
{
if (projectPart.toolchainType != ProjectExplorer::Constants::GCC_TOOLCHAIN_TYPEID
&& projectPart.toolchainType != ProjectExplorer::Constants::MINGW_TOOLCHAIN_TYPEID) {
return;
}
if (projectPart.toolChainInstallDir.isEmpty())
return;
const Utils::FilePath gccInstallDir = projectPart.toolChainInstallDir;
auto isGccInternalInclude = [gccInstallDir](const HeaderPath &headerPath) {
const auto filePath = Utils::FilePath::fromString(headerPath.path);
return filePath == gccInstallDir.pathAppended("include")
|| filePath == gccInstallDir.pathAppended("include-fixed");
};
Utils::erase(builtInHeaderPaths, isGccInternalInclude);
}
void HeaderPathFilter::filterHeaderPath(const ProjectExplorer::HeaderPath &headerPath)
{
if (headerPath.path.isEmpty())
return;
switch (headerPath.type) {
case HeaderPathType::BuiltIn:
builtInHeaderPaths.push_back(headerPath);
break;
case HeaderPathType::System:
case HeaderPathType::Framework:
systemHeaderPaths.push_back(headerPath);
break;
case HeaderPathType::User:
if (isProjectHeaderPath(headerPath.path))
userHeaderPaths.push_back(headerPath);
else
systemHeaderPaths.push_back(headerPath);
break;
}
}
namespace {
HeaderPaths::iterator resourceIterator(HeaderPaths &headerPaths)
{
// include/c++, include/g++, libc++\include and libc++abi\include
static const QString cppIncludes = R"((.*/include/.*(g\+\+|c\+\+).*))"
R"(|(.*libc\+\+/include))"
R"(|(.*libc\+\+abi/include))"
R"(|(/usr/local/include))";
static const QRegularExpression includeRegExp("\\A(" + cppIncludes + ")\\z");
return std::stable_partition(headerPaths.begin(),
headerPaths.end(),
[&](const HeaderPath &headerPath) {
return includeRegExp.match(headerPath.path).hasMatch();
});
}
bool isClangSystemHeaderPath(const HeaderPath &headerPath)
{
// Always exclude clang system includes (including intrinsics) which do not come with libclang
// that Qt Creator uses for code model.
// For example GCC on macOS uses system clang include path which makes clang code model
// include incorrect system headers.
static const QRegularExpression clangIncludeDir(
R"(\A.*/lib\d*/clang/\d+\.\d+(\.\d+)?/include\z)");
return clangIncludeDir.match(headerPath.path).hasMatch();
}
void removeClangSystemHeaderPaths(HeaderPaths &headerPaths)
{
auto newEnd = std::remove_if(headerPaths.begin(), headerPaths.end(), isClangSystemHeaderPath);
headerPaths.erase(newEnd, headerPaths.end());
}
} // namespace
void HeaderPathFilter::tweakHeaderPaths()
{
removeClangSystemHeaderPaths(builtInHeaderPaths);
removeGccInternalIncludePaths();
auto split = resourceIterator(builtInHeaderPaths);
if (!clangIncludeDirectory.isEmpty())
builtInHeaderPaths.insert(split, HeaderPath::makeBuiltIn(clangIncludeDirectory));
}
void HeaderPathFilter::addPreIncludesPath()
{
if (!projectDirectory.isEmpty()) {
const Utils::FilePath rootProjectDirectory = Utils::FilePath::fromString(projectDirectory)
.pathAppended(".pre_includes");
systemHeaderPaths.push_back(ProjectExplorer::HeaderPath::makeSystem(rootProjectDirectory));
}
}
QString HeaderPathFilter::ensurePathWithSlashEnding(const QString &path)
{
QString pathWithSlashEnding = path;
if (!pathWithSlashEnding.isEmpty() && *pathWithSlashEnding.rbegin() != '/')
pathWithSlashEnding.push_back('/');
return pathWithSlashEnding;
}
} // namespace CppEditor::Internal
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