support typedvalue

Signed-off-by: Jinjie Liu <jjliu@baai.ac.cn>

include/exception.h

@@ -1,6 +1,7 @@
 #ifndef TRITON_TVM_FFI_EXCEPTION_H_
 #define TRITON_TVM_FFI_EXCEPTION_H_
 
+#include "type.h"
 #include <cuda.h>
 #include <exception>
 
@@ -12,7 +13,17 @@ public:
   const char *what() const noexcept override;
 
 private:
-  const CUresult code;
+  const CUresult code_;
+};
+
+class UnknownTypeException : public std::exception {
+public:
+  UnknownTypeException(Type type);
+  UnknownTypeException(std::string_view type);
+  const char *what() const noexcept override;
+
+private:
+  const std::string message_;
 };
 
 } // namespace triton_tvm_ffi