Replaced throw with unreachable code logic.

Author: neogeek

include/RhythmGameUtilities/Enums/Difficulty.h

@@ -2,6 +2,8 @@
 
 #include <string>
 
+#include "Enums.h"
+
 namespace RhythmGameUtilities
 {
 
@@ -35,7 +37,7 @@ std::string ToString(Difficulty difficulty)
     case Expert:
         return "Expert";
     default:
-        throw std::invalid_argument("Unknown Difficulty");
+        unreachable();
     }
 }
 

include/RhythmGameUtilities/Enums/Enums.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <stdexcept>
+
+[[noreturn]] inline void unreachable()
+{
+#ifdef __GNUC__
+    __builtin_unreachable();
+#elif defined(_MSC_VER)
+    __assume(0);
+#else
+    std::abort();
+#endif
+}

include/RhythmGameUtilities/Enums/NamedSection.h

@@ -2,6 +2,8 @@
 
 #include <string>
 
+#include "Enums.h"
+
 namespace RhythmGameUtilities
 {
 
@@ -28,7 +30,7 @@ std::string ToString(NamedSection namedSection)
     case Events:
         return "Events";
     default:
-        throw std::invalid_argument("Unknown NamedSection");
+        unreachable();
     }
 }
 

include/RhythmGameUtilities/Enums/TypeCode.h

@@ -2,6 +2,8 @@
 
 #include <string>
 
+#include "Enums.h"
+
 namespace RhythmGameUtilities
 {
 
@@ -35,7 +37,7 @@ std::string ToString(TypeCode typeCode)
     case EventMarker:
         return "E";
     default:
-        throw std::invalid_argument("Unknown TypeCode");
+        unreachable();
     }
 }