Remove verbose comments and else after return

Author: joto

src/lua-utils.cpp

@@ -153,29 +153,26 @@ static int pcall_error_traceback_handler(lua_State *lua_state)
     assert(lua_state);
 
     char const *msg = lua_tostring(lua_state, 1);
-    if (msg == nullptr) { // is error object not a string?
-        if (luaL_callmeta(lua_state, 1,
-                          "__tostring") && // does it have a metamethod
-            lua_type(lua_state, -1) == LUA_TSTRING) { // that produces a string?
-            return 1;                                 // that is the message
-        } else {
-            msg = lua_pushfstring(lua_state, "(error object is a %s value)",
-                                  luaL_typename(lua_state, 1));
+    if (msg == nullptr) {
+        if (luaL_callmeta(lua_state, 1, "__tostring") &&
+            lua_type(lua_state, -1) == LUA_TSTRING) {
+            return 1;
         }
+        msg = lua_pushfstring(lua_state, "(error object is a %s value)",
+                              luaL_typename(lua_state, 1));
     }
-    luaL_traceback(lua_state, lua_state, msg, 1); // append a standard traceback
-    return 1;                                     // return the traceback
+    luaL_traceback(lua_state, lua_state, msg, 1);
+    return 1;
 }
 
-// wrapper function for lua_pcall to include a stack traceback
+/// Wrapper function for lua_pcall() showing a stack trace on error.
 int luaX_pcall(lua_State *lua_state, int narg, int nres)
 {
-    int const base = lua_gettop(lua_state) - narg; // function index
-    lua_pushcfunction(lua_state,
-                      pcall_error_traceback_handler); // push message handler
-    lua_insert(lua_state, base); // put it under function and args
+    int const base = lua_gettop(lua_state) - narg;
+    lua_pushcfunction(lua_state, pcall_error_traceback_handler);
+    lua_insert(lua_state, base);
     int const status = lua_pcall(lua_state, narg, nres, base);
-    lua_remove(lua_state, base); // remove message handler from the stack
+    lua_remove(lua_state, base);
     return status;
 }