bpo-36540: PEP 570 -- Implementation (GH-12701)

This commit contains the implementation of PEP570: Python positional-only parameters.

* Update Grammar/Grammar with new typedarglist and varargslist

* Regenerate grammar files

* Update and regenerate AST related files

* Update code object

* Update marshal.c

* Update compiler and symtable

* Regenerate importlib files

* Update callable objects

* Implement positional-only args logic in ceval.c

* Regenerate frozen data

* Update standard library to account for positional-only args

* Add test file for positional-only args

* Update other test files to account for positional-only args

* Add News entry

* Update inspect module and related tests
This commit is contained in:
Pablo Galindo 2019-04-29 13:36:57 +01:00 committed by GitHub
parent 99fcc616d4
commit 8c77b8cb91
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
38 changed files with 5771 additions and 4710 deletions

50
Python/Python-ast.c generated
View file

@ -469,6 +469,7 @@ static char *ExceptHandler_fields[]={
};
static PyTypeObject *arguments_type;
static PyObject* ast2obj_arguments(void*);
_Py_IDENTIFIER(posonlyargs);
_Py_IDENTIFIER(vararg);
_Py_IDENTIFIER(kwonlyargs);
_Py_IDENTIFIER(kw_defaults);
@ -476,6 +477,7 @@ _Py_IDENTIFIER(kwarg);
_Py_IDENTIFIER(defaults);
static char *arguments_fields[]={
"args",
"posonlyargs",
"vararg",
"kwonlyargs",
"kw_defaults",
@ -1141,7 +1143,7 @@ static int init_types(void)
ExceptHandler_type = make_type("ExceptHandler", excepthandler_type,
ExceptHandler_fields, 3);
if (!ExceptHandler_type) return 0;
arguments_type = make_type("arguments", &AST_type, arguments_fields, 6);
arguments_type = make_type("arguments", &AST_type, arguments_fields, 7);
if (!arguments_type) return 0;
if (!add_attributes(arguments_type, NULL, 0)) return 0;
arg_type = make_type("arg", &AST_type, arg_fields, 3);
@ -2569,14 +2571,16 @@ ExceptHandler(expr_ty type, identifier name, asdl_seq * body, int lineno, int
}
arguments_ty
arguments(asdl_seq * args, arg_ty vararg, asdl_seq * kwonlyargs, asdl_seq *
kw_defaults, arg_ty kwarg, asdl_seq * defaults, PyArena *arena)
arguments(asdl_seq * args, asdl_seq * posonlyargs, arg_ty vararg, asdl_seq *
kwonlyargs, asdl_seq * kw_defaults, arg_ty kwarg, asdl_seq *
defaults, PyArena *arena)
{
arguments_ty p;
p = (arguments_ty)PyArena_Malloc(arena, sizeof(*p));
if (!p)
return NULL;
p->args = args;
p->posonlyargs = posonlyargs;
p->vararg = vararg;
p->kwonlyargs = kwonlyargs;
p->kw_defaults = kw_defaults;
@ -3954,6 +3958,11 @@ ast2obj_arguments(void* _o)
if (_PyObject_SetAttrId(result, &PyId_args, value) == -1)
goto failed;
Py_DECREF(value);
value = ast2obj_list(o->posonlyargs, ast2obj_arg);
if (!value) goto failed;
if (_PyObject_SetAttrId(result, &PyId_posonlyargs, value) == -1)
goto failed;
Py_DECREF(value);
value = ast2obj_arg(o->vararg);
if (!value) goto failed;
if (_PyObject_SetAttrId(result, &PyId_vararg, value) == -1)
@ -8267,6 +8276,7 @@ obj2ast_arguments(PyObject* obj, arguments_ty* out, PyArena* arena)
{
PyObject* tmp = NULL;
asdl_seq* args;
asdl_seq* posonlyargs;
arg_ty vararg;
asdl_seq* kwonlyargs;
asdl_seq* kw_defaults;
@ -8303,6 +8313,36 @@ obj2ast_arguments(PyObject* obj, arguments_ty* out, PyArena* arena)
}
Py_CLEAR(tmp);
}
if (_PyObject_LookupAttrId(obj, &PyId_posonlyargs, &tmp) < 0) {
return 1;
}
if (tmp == NULL) {
PyErr_SetString(PyExc_TypeError, "required field \"posonlyargs\" missing from arguments");
return 1;
}
else {
int res;
Py_ssize_t len;
Py_ssize_t i;
if (!PyList_Check(tmp)) {
PyErr_Format(PyExc_TypeError, "arguments field \"posonlyargs\" must be a list, not a %.200s", tmp->ob_type->tp_name);
goto failed;
}
len = PyList_GET_SIZE(tmp);
posonlyargs = _Py_asdl_seq_new(len, arena);
if (posonlyargs == NULL) goto failed;
for (i = 0; i < len; i++) {
arg_ty val;
res = obj2ast_arg(PyList_GET_ITEM(tmp, i), &val, arena);
if (res != 0) goto failed;
if (len != PyList_GET_SIZE(tmp)) {
PyErr_SetString(PyExc_RuntimeError, "arguments field \"posonlyargs\" changed size during iteration");
goto failed;
}
asdl_seq_SET(posonlyargs, i, val);
}
Py_CLEAR(tmp);
}
if (_PyObject_LookupAttrId(obj, &PyId_vararg, &tmp) < 0) {
return 1;
}
@ -8419,8 +8459,8 @@ obj2ast_arguments(PyObject* obj, arguments_ty* out, PyArena* arena)
}
Py_CLEAR(tmp);
}
*out = arguments(args, vararg, kwonlyargs, kw_defaults, kwarg, defaults,
arena);
*out = arguments(args, posonlyargs, vararg, kwonlyargs, kw_defaults, kwarg,
defaults, arena);
return 0;
failed:
Py_XDECREF(tmp);