bpo-44032: Move data stack to thread from FrameObject. (GH-26076)

* Remove 'zombie' frames. We won't need them once we are allocating fixed-size frames.

* Add co_nlocalplus field to code object to avoid recomputing size of locals + frees + cells.

* Move locals, cells and freevars out of frame object into separate memory buffer.

* Use per-threadstate allocated memory chunks for local variables.

* Move globals and builtins from frame object to per-thread stack.

* Move (slow) locals frame object to per-thread stack.

* Move internal frame functions to internal header.

1 files changed, 5 insertions, 3 deletions

diff --git a/Python/suggestions.c b/Python/suggestions.c
index 6fb01f1..2e76551 100644
--- a/Python/suggestions.c
+++ b/Python/suggestions.c
@@ -1,5 +1,6 @@
 #include "Python.h"
 #include "frameobject.h"
+#include "pycore_frame.h"
 
 #include "pycore_pyerrors.h"
 
@@ -208,9 +209,10 @@ offer_suggestions_for_name_error(PyNameErrorObject *exc)
 
     PyFrameObject *frame = traceback->tb_frame;
     assert(frame != NULL);
-    PyCodeObject *code = frame->f_code;
+    PyCodeObject *code = PyFrame_GetCode(frame);
     assert(code != NULL && code->co_varnames != NULL);
     PyObject *dir = PySequence_List(code->co_varnames);
+    Py_DECREF(code);
     if (dir == NULL) {
         return NULL;
     }
@@ -221,7 +223,7 @@ offer_suggestions_for_name_error(PyNameErrorObject *exc)
         return suggestions;
     }
 
-    dir = PySequence_List(frame->f_globals);
+    dir = PySequence_List(_PyFrame_GetGlobals(frame));
     if (dir == NULL) {
         return NULL;
     }
@@ -231,7 +233,7 @@ offer_suggestions_for_name_error(PyNameErrorObject *exc)
         return suggestions;
     }
 
-    dir = PySequence_List(frame->f_builtins);
+    dir = PySequence_List(_PyFrame_GetBuiltins(frame));
     if (dir == NULL) {
         return NULL;
     }