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bpo-44525: Copy free variables in bytecode to allow calls to inner functions to be specialized (GH-29595)

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* Make internal APIs that take PyFrameConstructor take a PyFunctionObject instead.

* Add reference to function to frame, borrow references to builtins and globals.

* Add COPY_FREE_VARS instruction to allow specialization of calls to inner functions.
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Mark Shannon 2021-11-23 09:53:24 +00:00 • committed by GitHub
parent d82f2caf94
commit 135cabd328
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25 changed files with 268 additions and 156 deletions
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3
Python/bltinmodule.c
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@ -212,9 +212,8 @@ builtin___build_class__(PyObject *self, PyObject *const *args, Py_ssize_t nargs,
Py_TYPE(ns)->tp_name);
goto error;
}
PyFrameConstructor *f = PyFunction_AS_FRAME_CONSTRUCTOR(func);
PyThreadState *tstate = _PyThreadState_GET();
cell = _PyEval_Vector(tstate, f, ns, NULL, 0, NULL);
cell = _PyEval_Vector(tstate, (PyFunctionObject *)func, ns, NULL, 0, NULL);
if (cell != NULL) {
if (bases != orig_bases) {
if (PyMapping_SetItemString(ns, "__orig_bases__", orig_bases) < 0) {