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

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* 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.
This commit is contained in:
Mark Shannon 2021-05-21 10:57:35 +01:00 • committed by GitHub
parent be4dd7fcd9
commit b11a951f16
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20 changed files with 454 additions and 250 deletions
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8
Python/suggestions.c
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@ -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;
}