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clang-uml/src/common/compilation_database.cc

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/**
* src/common/compilation_database.cc
*
* Copyright (c) 2021-2023 Bartek Kryza <bkryza@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "compilation_database.h"
#include "util/query_driver_output_extractor.h"
namespace clanguml::common {
std::unique_ptr<compilation_database>
compilation_database::auto_detect_from_directory(
const clanguml::config::config &cfg)
{
std::string error_message;
auto res = clang::tooling::CompilationDatabase::autoDetectFromDirectory(
cfg.compilation_database_dir(), error_message);
if (!error_message.empty())
throw compilation_database_error(error_message);
return std::make_unique<compilation_database>(std::move(res), cfg);
}
compilation_database::compilation_database(
std::unique_ptr<clang::tooling::CompilationDatabase> base,
const clanguml::config::config &cfg)
: base_{std::move(base)}
, config_{cfg}
{
}
const clanguml::config::config &compilation_database::config() const
{
return config_;
}
const clang::tooling::CompilationDatabase &compilation_database::base() const
{
return *base_;
}
std::vector<std::string> compilation_database::getAllFiles() const
{
return base().getAllFiles();
}
std::vector<clang::tooling::CompileCommand>
compilation_database::getCompileCommands(clang::StringRef FilePath) const
{
auto commands = base().getCompileCommands(FilePath);
adjust_compilation_database(commands);
return commands;
}
std::vector<clang::tooling::CompileCommand>
compilation_database::getAllCompileCommands() const
{
auto commands = base().getAllCompileCommands();
adjust_compilation_database(commands);
return commands;
}
std::string compilation_database::guess_language_from_filename(
const std::string &filename) const
{
if (util::ends_with(filename, std::string{".c"}))
return "c";
return "c++";
}
void compilation_database::adjust_compilation_database(
std::vector<clang::tooling::CompileCommand> &commands) const
{
#if !defined(_WIN32)
if (config().query_driver && !config().query_driver().empty()) {
for (auto &compile_command : commands) {
auto argv0 = config().query_driver() == "."
? compile_command.CommandLine.at(0)
: config().query_driver();
util::query_driver_output_extractor extractor{
argv0, guess_language_from_filename(compile_command.Filename)};
extractor.execute();
std::vector<std::string> system_header_args;
for (const auto &path : extractor.system_include_paths()) {
system_header_args.emplace_back("-isystem");
system_header_args.emplace_back(path);
}
compile_command.CommandLine.insert(
compile_command.CommandLine.begin() + 1,
system_header_args.begin(), system_header_args.end());
if (!extractor.target().empty()) {
compile_command.CommandLine.insert(
compile_command.CommandLine.begin() + 1,
fmt::format("--target={}", extractor.target()));
}
}
}
#endif
if (config().add_compile_flags && !config().add_compile_flags().empty()) {
for (auto &compile_command : commands) {
compile_command.CommandLine.insert(
// Add flags after argv[0]
compile_command.CommandLine.begin() + 1,
config().add_compile_flags().begin(),
config().add_compile_flags().end());
}
}
if (config().remove_compile_flags &&
!config().remove_compile_flags().empty()) {
for (auto &compile_command : commands) {
for (const auto &flag : config().remove_compile_flags()) {
util::erase_if(compile_command.CommandLine,
[&flag](const auto &arg) { return flag == arg; });
}
}
}
}
} // namespace clanguml::common