Initial refactor to cppast

src/cx/util.cc

@@ -18,6 +18,8 @@
 
 #include "cx/util.h"
 
+#include <cppast/cpp_class.hpp>
+#include <cppast/cpp_entity_kind.hpp>
 #include <spdlog/spdlog.h>
 
 namespace clanguml {
@@ -30,6 +32,65 @@ std::string to_string(CXString &&cxs)
     clang_disposeString(cxs);
     return r;
 }
+
+std::string full_name(const cppast::cpp_entity &e)
+{
+    if (e.name().empty())
+        return "";
+    else if (cppast::is_parameter(e.kind()))
+        // parameters don't have a full name
+        return e.name();
+
+    std::string scopes;
+
+    for (auto cur = e.parent(); cur; cur = cur.value().parent())
+        // prepend each scope, if there is any
+        if (cur.value().kind() == cppast::cpp_entity_kind::namespace_t)
+            type_safe::with(cur.value().scope_name(),
+                [&](const cppast::cpp_scope_name &cur_scope) {
+                    scopes = cur_scope.name() + "::" + scopes;
+                });
+
+    if (e.kind() == cppast::cpp_entity_kind::class_t) {
+        auto &c = static_cast<const cppast::cpp_class &>(e);
+        return scopes /*+ c.semantic_scope()*/ + c.name();
+    }
+    else if (e.kind() == cppast::cpp_entity_kind::class_template_t) {
+        return scopes;
+    }
+    else
+        return scopes + e.name();
+}
+
+std::string ns(const cppast::cpp_entity &e)
+{
+    std::vector<std::string> res{};
+
+    auto it = e.parent();
+    while (it) {
+        if (it.value().kind() == cppast::cpp_entity_kind::namespace_t) {
+            res.push_back(it.value().name());
+        }
+        it = it.value().parent();
+    }
+
+    return fmt::format("{}", fmt::join(res.rbegin(), res.rend(), "::"));
+}
+
+std::string fully_prefixed(const cppast::cpp_entity &e)
+{
+    std::vector<std::string> res{e.name()};
+
+    auto it = e.parent();
+    while (it) {
+        if (it.value().kind() == cppast::cpp_entity_kind::namespace_t) {
+            res.push_back(it.value().name());
+        }
+        it = it.value().parent();
+    }
+
+    return fmt::format("{}", fmt::join(res.rbegin(), res.rend(), "::"));
+}
 } // namespace util
 } // namespace cx
 } // namespace clanguml