65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
// Copyright (C) 2017 Jonathan Müller <jonathanmueller.dev@gmail.com>
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// This file is subject to the license terms in the LICENSE file
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// found in the top-level directory of this distribution.
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/// \file
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/// This is a very primitive version of the cppast tool.
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#include <iostream>
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#include <cppast/libclang_parser.hpp> // libclang_compilation_database, libclang_parser, etc.
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#include <cppast/visitor.hpp> // visit()
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int main(int argc, char* argv[])
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{
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if (argc != 2)
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{
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std::cerr << "usage: " << argv[0] << " <compile-commands-json-dir>\n";
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return 1;
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}
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else
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{
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cppast::libclang_compilation_database database(argv[1]); // the compilation database
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cppast::cpp_entity_index index; // only needed for cross referencing in the AST
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// simple_file_parser allows parsing multiple files and stores the results for us
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cppast::simple_file_parser<cppast::libclang_parser> parser(type_safe::ref(index));
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try
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{
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cppast::parse_database(parser, database); // parse all files in the database
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}
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catch (cppast::libclang_error& ex)
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{
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std::cerr << "fatal libclang error: " << ex.what() << '\n';
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return 1;
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}
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if (parser.error())
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// a non-fatal parse error
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// error has been logged to stderr
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return 1;
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for (auto& file : parser.files()) // for each file in the project
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{
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std::string prefix;
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// visit each entity in the file
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cppast::visit(file, [&](const cppast::cpp_entity& e, cppast::visitor_info info) {
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if (info.event
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== cppast::visitor_info::container_entity_exit) // exiting an old container
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prefix.pop_back();
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else if (info.event == cppast::visitor_info::container_entity_enter)
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// entering a new container
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{
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std::cout << prefix << "'" << e.name() << "' - " << cppast::to_string(e.kind())
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<< '\n';
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prefix += "\t";
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}
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else // if (info.event == cppast::visitor_info::leaf_entity) // a non-container entity
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std::cout << prefix << "'" << e.name() << "' - " << cppast::to_string(e.kind())
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<< '\n';
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return true; // continue with visit
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});
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}
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}
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}
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