provide an explicit error message when trying to construct an abstrac…

…t class
virtualritz · Aug 27, 2024 · dd267dd · dd267dd
1 parent 452e94e
commit dd267dd
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION  3.15)
-project(babble VERSION 0.7.0 LANGUAGES C CXX)
+project(babble VERSION 0.8.0 LANGUAGES C CXX)
 
 find_package(Clang REQUIRED)
 string(REGEX MATCH "^([0-9]+)\\.([0-9]+)\\.([0-9]+)"

diff --git a/bbl/include/babble b/bbl/include/babble
@@ -88,6 +88,7 @@ public:
 
     template <typename... Args> struct Ctor {
         template <typename... CtorArgs> Ctor(CtorArgs...) {
+            static_assert(std::is_abstract_v<C> == false, "cannot construct an abstract class");
             // Make sure length of provided name args matches the length of the type
             // args
             if constexpr (sizeof...(CtorArgs) > 0) {
@@ -104,6 +105,7 @@ public:
     /// Bind a constructor
     template <typename T = C, typename... Args>
     Class ctor(Ctor<Args...> ctor, const char* rename = "") {
+        static_assert(std::is_abstract_v<C> == false, "cannot construct an abstract class");
         static_assert(std::is_constructible<T, Args...>::value,
                       "can not construct class with these arguments");