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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "compilationdatabaseutils.h"
#include <projectexplorer/headerpath.h>
#include <projectexplorer/projectmacro.h>
#include <utils/algorithm.h>
#include <utils/hostosinfo.h>
#include <utils/stringutils.h>
#include <QDir>
#include <QRegularExpression>
#include <QSet>
#include <optional>
using namespace ProjectExplorer;
using namespace Utils;
namespace CompilationDatabaseProjectManager {
namespace Internal {
static CppEditor::ProjectFile::Kind fileKindFromString(QString flag)
{
using namespace CppEditor;
if (flag.startsWith("-x"))
flag = flag.mid(2);
if (flag == "c++-header")
return ProjectFile::CXXHeader;
if (flag == "c-header")
return ProjectFile::CHeader;
if (flag == "c++" || flag == "/TP" || flag.startsWith("/Tp"))
return ProjectFile::CXXSource;
if (flag == "c" || flag == "/TC" || flag.startsWith("/Tc"))
return ProjectFile::CSource;
if (flag == "objective-c++")
return ProjectFile::ObjCXXSource;
if (flag == "objective-c++-header")
return ProjectFile::ObjCXXHeader;
if (flag == "objective-c")
return ProjectFile::ObjCSource;
if (flag == "objective-c-header")
return ProjectFile::ObjCHeader;
if (flag == "cl")
return ProjectFile::OpenCLSource;
if (flag == "cuda")
return ProjectFile::CudaSource;
return ProjectFile::Unclassified;
}
QStringList filterFromFileName(const QStringList &flags, QString fileName)
{
QStringList result;
result.reserve(flags.size());
bool skipNext = false;
for (int i = 0; i < flags.size(); ++i) {
const QString &flag = flags.at(i);
if (skipNext) {
skipNext = false;
continue;
}
if (FilePath::fromUserInput(flag).fileName() == fileName)
continue;
if (flag == "-o" || flag.startsWith("/Fo")) {
skipNext = true;
continue;
}
result.push_back(flag);
}
return result;
}
void filteredFlags(const FilePath &filePath,
const FilePath &workingDir,
QStringList &flags,
HeaderPaths &headerPaths,
Macros ¯os,
CppEditor::ProjectFile::Kind &fileKind,
FilePath &sysRoot)
{
if (flags.empty())
return;
// Skip compiler call if present.
bool skipNext = Utils::HostOsInfo::isWindowsHost()
? (!flags.front().startsWith('/') && !flags.front().startsWith('-'))
: (!flags.front().startsWith('-'));
std::optional<HeaderPathType> includePathType;
std::optional<MacroType> macroType;
bool fileKindIsNext = false;
QStringList filtered;
for (const QString &flag : flags) {
if (skipNext) {
skipNext = false;
continue;
}
if (includePathType) {
const QString pathStr = workingDir.resolvePath(flag).toString();
headerPaths.append({pathStr, includePathType.value()});
includePathType.reset();
continue;
}
if (macroType) {
Macro macro = Macro::fromKeyValue(flag);
macro.type = macroType.value();
macros.append(macro);
macroType.reset();
continue;
}
if (flag != "-x"
&& (fileKindIsNext || flag == "/TC" || flag == "/TP"
|| flag.startsWith("/Tc") || flag.startsWith("/Tp") || flag.startsWith("-x"))) {
fileKindIsNext = false;
fileKind = fileKindFromString(flag);
continue;
}
if (flag == "-x") {
fileKindIsNext = true;
continue;
}
if (flag == "-o" || flag == "-MF" || flag == "-c" || flag == "-pedantic"
|| flag.startsWith("-O") || flag.startsWith("-W") || flag.startsWith("-w")) {
continue;
}
const QStringList userIncludeFlags{"-I", "/I"};
const QStringList systemIncludeFlags{"-isystem", "-imsvc", "/imsvc"};
const QStringList allIncludeFlags = QStringList(userIncludeFlags) << systemIncludeFlags;
const QString includeOpt = Utils::findOrDefault(allIncludeFlags, [flag](const QString &opt) {
return flag.startsWith(opt) && flag != opt;
});
if (!includeOpt.isEmpty()) {
const QString pathStr = workingDir.resolvePath(flag.mid(includeOpt.length())).toString();
headerPaths.append({pathStr, userIncludeFlags.contains(includeOpt)
? HeaderPathType::User : HeaderPathType::System});
continue;
}
if ((flag.startsWith("-D") || flag.startsWith("-U") || flag.startsWith("/D") || flag.startsWith("/U"))
&& flag != "-D" && flag != "-U" && flag != "/D" && flag != "/U") {
Macro macro = Macro::fromKeyValue(flag.mid(2));
macro.type = (flag.startsWith("-D") || flag.startsWith("/D")) ? MacroType::Define : MacroType::Undefine;
macros.append(macro);
continue;
}
if (userIncludeFlags.contains(flag)) {
includePathType = HeaderPathType::User;
continue;
}
if (systemIncludeFlags.contains(flag)) {
includePathType = HeaderPathType::System;
continue;
}
if (flag == "-D" || flag == "-U" || flag == "/D" || flag == "/U") {
macroType = (flag == "-D" || flag == "/D") ? MacroType::Define : MacroType::Undefine;
continue;
}
if (flag.startsWith("--sysroot=")) {
if (sysRoot.isEmpty())
sysRoot = workingDir.resolvePath(flag.mid(10));
continue;
}
if ((flag.startsWith("-std=") || flag.startsWith("/std:"))
&& fileKind == CppEditor::ProjectFile::Unclassified) {
const bool cpp = (flag.contains("c++") || flag.contains("gnu++"));
if (CppEditor::ProjectFile::isHeader(CppEditor::ProjectFile::classify(filePath.path())))
fileKind = cpp ? CppEditor::ProjectFile::CXXHeader : CppEditor::ProjectFile::CHeader;
else
fileKind = cpp ? CppEditor::ProjectFile::CXXSource : CppEditor::ProjectFile::CSource;
}
// Skip all remaining Windows flags except feature flags.
if (Utils::HostOsInfo::isWindowsHost() && flag.startsWith("/") && !flag.startsWith("/Z"))
continue;
filtered.push_back(flag);
}
if (fileKind == CppEditor::ProjectFile::Unclassified)
fileKind = CppEditor::ProjectFile::classify(filePath.path());
flags = filtered;
}
QStringList splitCommandLine(QString commandLine, QSet<QString> &flagsCache)
{
QStringList result;
bool insideQuotes = false;
// Remove escaped quotes.
commandLine.replace("\\\"", "'");
for (const QString &part : commandLine.split(QRegularExpression("\""))) {
if (insideQuotes) {
const QString quotedPart = "\"" + part + "\"";
if (result.last().endsWith("=")) {
auto flagIt = flagsCache.insert(result.last() + quotedPart);
result.last() = *flagIt;
} else {
auto flagIt = flagsCache.insert(quotedPart);
result.append(*flagIt);
}
} else { // If 's' is outside quotes ...
for (const QString &flag :
part.split(QRegularExpression("\\s+"), Qt::SkipEmptyParts)) {
auto flagIt = flagsCache.insert(flag);
result.append(*flagIt);
}
}
insideQuotes = !insideQuotes;
}
return result;
}
} // namespace Internal
} // namespace CompilationDatabaseProjectManager
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