Add basic libclang parsing infrastructure

src/libclang/libclang_parser.cpp

@@ -0,0 +1,92 @@
+// Copyright (C) 2017 Jonathan Müller <jonathanmueller.dev@gmail.com>
+// This file is subject to the license terms in the LICENSE file
+// found in the top-level directory of this distribution.
+
+#include <cppast/libclang_parser.hpp>
+
+#include "raii_wrapper.hpp"
+
+using namespace cppast;
+
+libclang_compile_config::libclang_compile_config() : compile_config({})
+{
+}
+
+void libclang_compile_config::do_set_flags(cpp_standard                      standard,
+                                           type_safe::flag_set<compile_flag> flags)
+{
+    switch (standard)
+    {
+    case cpp_standard::cpp_98:
+        if (flags & compile_flag::gnu_extensions)
+            add_flag("-std=gnu++98");
+        else
+            add_flag("-std=c++98");
+        break;
+    case cpp_standard::cpp_03:
+        if (flags & compile_flag::gnu_extensions)
+            add_flag("-std=gnu++03");
+        else
+            add_flag("-std=c++03");
+        break;
+    case cpp_standard::cpp_11:
+        if (flags & compile_flag::gnu_extensions)
+            add_flag("-std=gnu++11");
+        else
+            add_flag("-std=c++11");
+        break;
+    case cpp_standard::cpp_14:
+        if (flags & compile_flag::gnu_extensions)
+            add_flag("-std=gnu++14");
+        else
+            add_flag("-std=c++14");
+        break;
+    }
+
+    if (flags & compile_flag::ms_compatibility)
+        add_flag("-fms-compatibility");
+    if (flags & compile_flag::ms_extensions)
+        add_flag("-fms-extensions");
+}
+
+void libclang_compile_config::do_add_include_dir(std::string path)
+{
+    add_flag("-I" + std::move(path));
+}
+
+void libclang_compile_config::do_add_macro_definition(std::string name, std::string definition)
+{
+    auto str = "-D" + std::move(name);
+    if (!definition.empty())
+        str += "=" + std::move(definition);
+    add_flag(std::move(str));
+}
+
+void libclang_compile_config::do_remove_macro_definition(std::string name)
+{
+    add_flag("-U" + std::move(name));
+}
+
+struct libclang_parser::impl
+{
+    detail::cxindex index;
+
+    impl() : index(clang_createIndex(1, 1))
+    {
+    }
+};
+
+libclang_parser::libclang_parser()
+{
+}
+
+libclang_parser::~libclang_parser() noexcept
+{
+}
+
+std::unique_ptr<cpp_file> libclang_parser::do_parse(const cpp_entity_index& idx,
+                                                    const std::string&      path,
+                                                    const compile_config&   config) const
+{
+    return nullptr;
+}