Redo how CinderX initialization handles getters/setters on callable t…

…ypes

Summary:
The way this works today with 3.10 is that we statically initialize a copy of
the same tables that CPython uses internally.  We had to patch the runtime to
export the getters with `Cix_` prefixes so we could access them in CinderX.

The new way in this diff is to dynamically arrays and then copy the getset
tables into them on CinderX initialization, tacking on the extra
`__typed_signature__` getter.  The arrays are cleaned up by global destructors.

This drops the requirement that we have the `Cix_` wrappers.

The thing that I noticed while working on this is that we never actually reset
these tables when CinderX is unloaded, they stick around until the runtime
process itself dies.  This diff doesn't make that any better, but at least it
tries to document what needs to be modified to make that work.

Reviewed By: jbower-fb

Differential Revision: D59883485

fbshipit-source-id: 204b76465b927a9d78204bcc5346cc9cfb8cc91e

Include/cinder/hooks.h

@@ -130,26 +130,6 @@ CiAPI_DATA(Ci_HookType_PyJIT_GenMaterializeFrame)
 typedef PyObject *(*Ci_HookType_MaybeStrictModule_Dict)(PyObject *op);
 CiAPI_DATA(Ci_HookType_MaybeStrictModule_Dict) Ci_hook_MaybeStrictModule_Dict;
 
-CiAPI_FUNC(PyObject *)
-    Cix_method_get_doc(PyMethodDescrObject *descr, void *closure);
-
-CiAPI_FUNC(PyObject *)
-    Cix_method_get_text_signature(PyMethodDescrObject *descr, void *closure);
-
-CiAPI_FUNC(PyObject *) Cix_meth_get__doc__(PyCFunctionObject *m, void *closure);
-
-CiAPI_FUNC(PyObject *)
-    Cix_meth_get__name__(PyCFunctionObject *m, void *closure);
-
-CiAPI_FUNC(PyObject *)
-    Cix_meth_get__qualname__(PyCFunctionObject *m, void *closure);
-
-CiAPI_FUNC(PyObject *)
-    Cix_meth_get__self__(PyCFunctionObject *m, void *closure);
-
-CiAPI_FUNC(PyObject *)
-    Cix_meth_get__text_signature__(PyCFunctionObject *m, void *closure);
-
 CiAPI_DATA(_PyFrameEvalFunction) Ci_hook_EvalFrame;
 
 typedef PyFrameObject *(*Ci_HookType_PyJIT_GetFrame)(PyThreadState *tstate);

Objects/descrobject.c

@@ -1924,26 +1924,8 @@ PyTypeObject PyProperty_Type = {
     PyObject_GC_Del,                            /* tp_free */
 };
 
-PyObject *
-Cix_descr_get_qualname(PyDescrObject *descr, void *closure)
-{
-    return descr_get_qualname(descr, closure);
-}
-
 funcptr
 Cix_method_enter_call(PyThreadState *tstate, PyObject *func)
 {
     return method_enter_call(tstate, func);
 }
-
-PyObject *
-Cix_method_get_doc(PyMethodDescrObject *descr, void *closure)
-{
-    return method_get_doc(descr, closure);
-}
-
-PyObject *
-Cix_method_get_text_signature(PyMethodDescrObject *descr, void *closure)
-{
-    return method_get_text_signature(descr, closure);
-}

Objects/methodobject.c

@@ -570,33 +570,3 @@ funcptr
 Cix_cfunction_enter_call(PyThreadState *tstate, PyObject *func) {
     return cfunction_enter_call(tstate, func);
 }
-
-PyObject *
-Cix_meth_get__doc__(PyCFunctionObject *m, void *closure)
-{
-    return meth_get__doc__(m, closure);
-}
-
-PyObject *
-Cix_meth_get__name__(PyCFunctionObject *m, void *closure)
-{
-    return meth_get__name__(m, closure);
-}
-
-PyObject *
-Cix_meth_get__qualname__(PyCFunctionObject *m, void *closure)
-{
-    return meth_get__qualname__(m, closure);
-}
-
-PyObject *
-Cix_meth_get__self__(PyCFunctionObject *m, void *closure)
-{
-    return meth_get__self__(m, closure);
-}
-
-PyObject *
-Cix_meth_get__text_signature__(PyCFunctionObject *m, void *closure)
-{
-    return meth_get__text_signature__(m, closure);
-}