...

src/ceval.cpp

@@ -856,11 +856,9 @@ __NEXT_STEP:;
 #undef CEVAL_STEP
 /**********************************************************************/
             UNREACHABLE();
-        }catch(HandledException& e){
+        }catch(HandledException){
-            PK_UNUSED(e);
             continue;
-        }catch(UnhandledException& e){
+        }catch(UnhandledException){
-            PK_UNUSED(e);
             PyObject* e_obj = POPX();
             Exception& _e = PK_OBJ_GET(Exception, e_obj);
             _pop_frame();
@@ -874,8 +872,7 @@ __NEXT_STEP:;
             PUSH(e_obj);
             if(frame.index < base_id) throw ToBeRaisedException();
             need_raise = true;
-        }catch(ToBeRaisedException& e){
+        }catch(ToBeRaisedException){
-            PK_UNUSED(e);
             need_raise = true;
         }
     }

src/repl.cpp

@@ -30,7 +30,7 @@ namespace pkpy {
         
         try{
             vm->exec(line, "<stdin>", mode);
-        }catch(NeedMoreLines& ne){
+        }catch(NeedMoreLines ne){
             buffer += line;
             buffer += '\n';
             need_more_lines = ne.is_compiling_class ? 3 : 2;

src/vm.cpp

@@ -178,6 +178,9 @@ namespace pkpy{
             msg = msg + e.what() + "\n";
             _stderr(msg.data, msg.size);
         }
+        catch(NeedMoreLines){
+            throw;
+        }
         catch(...) {
             Str msg = "An unknown exception occurred! It could be a bug. Please report it to @blueloveTH on GitHub.\n";
             _stderr(msg.data, msg.size);

tests/41_exception.py

@@ -113,5 +113,12 @@ except MyException as e:
     ok = True
 except Exception:
     exit(1)
-
+assert ok
+
+ok = False
+try:
+    eval('1+')
+except SyntaxError as e:
+    assert type(e) is SyntaxError
+    ok = True
 assert ok