some fix

cmake_build.py

@@ -7,16 +7,18 @@ assert os.system("python prebuild.py") == 0
 if not os.path.exists("build"):
     os.mkdir("build")
 
+config = 'Release'
+
 os.chdir("build")
 
-code = os.system("cmake .. -DPK_USE_CJSON=ON -DPK_ENABLE_OS=ON -DCMAKE_BUILD_TYPE=Release")
+code = os.system(f"cmake .. -DPK_USE_CJSON=ON -DPK_ENABLE_OS=ON -DCMAKE_BUILD_TYPE={config}")
 assert code == 0
-code = os.system("cmake --build . --config Release")
+code = os.system(f"cmake --build . --config {config}")
 assert code == 0
 
 if sys.platform == "win32":
-    shutil.copy("Release/main.exe", "../main.exe")
-    shutil.copy("Release/pocketpy.dll", "../pocketpy.dll")
+    shutil.copy(f"{config}/main.exe", "../main.exe")
+    shutil.copy(f"{config}/pocketpy.dll", "../pocketpy.dll")
 elif sys.platform == "darwin":
     shutil.copy("main", "../main")
     shutil.copy("libpocketpy.dylib", "../libpocketpy.dylib")

src/array2d.cpp

@@ -385,8 +385,8 @@ void add_module_array2d(VM* vm){
     Array2d::register_class(vm, mod);
     Array2dIter::register_class(vm, mod);
 
-    vm->bind__iter__(Array2d::_type(vm), [](VM* vm, PyObject* obj){
-        return VAR_T(Array2dIter, obj);
+    vm->bind__iter__(Array2d::_type(vm), [](VM* vm, PyObject* _0){
+        return VAR_T(Array2dIter, _0);
     });
 }
 

tests/83_array2d.py

@@ -177,3 +177,23 @@ for i, j, x in a:
     assert a[i, j] == x
 
 assert len(a) == a.numel
+
+# stackoverflow bug due to recursive mark-and-sweep
+# class Cell:
+#     neighbors: list['Cell']
+
+# cells: array2d[Cell] = array2d(192, 108, default=Cell)
+# OutOfBounds = Cell()
+# for x, y, cell in cells:
+#     cell.neighbors = [
+#         cells.get(x-1, y-1, OutOfBounds),
+#         cells.get(x  , y-1, OutOfBounds),
+#         cells.get(x+1, y-1, OutOfBounds),
+#         cells.get(x-1, y  , OutOfBounds),
+#         cells.get(x+1, y  , OutOfBounds),
+#         cells.get(x  , y+1, OutOfBounds),
+#         cells.get(x+1, y+1, OutOfBounds),
+#     ]
+
+# import gc
+# gc.collect()