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bpo-45292: [PEP-654] add except* (GH-29581)
This commit is contained in:
Irit Katriel
GitHub
parent
850aefc2c6
commit
d60457a667
34 changed files with 7070 additions and 3332 deletions
229
Python/Python-ast.c
generated
229
Python/Python-ast.c
generated
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@ -146,6 +146,7 @@ void _PyAST_Fini(PyInterpreterState *interp)
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Py_CLEAR(state->Sub_singleton);
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Py_CLEAR(state->Sub_type);
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Py_CLEAR(state->Subscript_type);
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Py_CLEAR(state->TryStar_type);
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Py_CLEAR(state->Try_type);
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Py_CLEAR(state->Tuple_type);
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Py_CLEAR(state->TypeIgnore_type);
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@ -486,6 +487,12 @@ static const char * const Try_fields[]={
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"orelse",
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"finalbody",
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};
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static const char * const TryStar_fields[]={
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"body",
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"handlers",
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"orelse",
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"finalbody",
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};
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static const char * const Assert_fields[]={
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"test",
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"msg",
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@ -1139,6 +1146,7 @@ init_types(struct ast_state *state)
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" | Match(expr subject, match_case* cases)\n"
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" | Raise(expr? exc, expr? cause)\n"
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" | Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)\n"
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" | TryStar(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)\n"
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" | Assert(expr test, expr? msg)\n"
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" | Import(alias* names)\n"
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" | ImportFrom(identifier? module, alias* names, int? level)\n"
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@ -1254,6 +1262,10 @@ init_types(struct ast_state *state)
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state->Try_type = make_type(state, "Try", state->stmt_type, Try_fields, 4,
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"Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)");
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if (!state->Try_type) return 0;
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state->TryStar_type = make_type(state, "TryStar", state->stmt_type,
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TryStar_fields, 4,
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"TryStar(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)");
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if (!state->TryStar_type) return 0;
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state->Assert_type = make_type(state, "Assert", state->stmt_type,
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Assert_fields, 2,
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"Assert(expr test, expr? msg)");
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@ -2379,6 +2391,28 @@ _PyAST_Try(asdl_stmt_seq * body, asdl_excepthandler_seq * handlers,
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return p;
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}
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stmt_ty
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_PyAST_TryStar(asdl_stmt_seq * body, asdl_excepthandler_seq * handlers,
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asdl_stmt_seq * orelse, asdl_stmt_seq * finalbody, int lineno,
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int col_offset, int end_lineno, int end_col_offset, PyArena
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*arena)
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{
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stmt_ty p;
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p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
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if (!p)
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return NULL;
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p->kind = TryStar_kind;
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p->v.TryStar.body = body;
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p->v.TryStar.handlers = handlers;
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p->v.TryStar.orelse = orelse;
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p->v.TryStar.finalbody = finalbody;
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p->lineno = lineno;
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p->col_offset = col_offset;
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p->end_lineno = end_lineno;
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p->end_col_offset = end_col_offset;
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return p;
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}
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stmt_ty
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_PyAST_Assert(expr_ty test, expr_ty msg, int lineno, int col_offset, int
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end_lineno, int end_col_offset, PyArena *arena)
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@ -4049,6 +4083,34 @@ ast2obj_stmt(struct ast_state *state, void* _o)
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goto failed;
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Py_DECREF(value);
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break;
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case TryStar_kind:
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tp = (PyTypeObject *)state->TryStar_type;
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result = PyType_GenericNew(tp, NULL, NULL);
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if (!result) goto failed;
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value = ast2obj_list(state, (asdl_seq*)o->v.TryStar.body, ast2obj_stmt);
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if (!value) goto failed;
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if (PyObject_SetAttr(result, state->body, value) == -1)
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goto failed;
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Py_DECREF(value);
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value = ast2obj_list(state, (asdl_seq*)o->v.TryStar.handlers,
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ast2obj_excepthandler);
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if (!value) goto failed;
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if (PyObject_SetAttr(result, state->handlers, value) == -1)
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goto failed;
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Py_DECREF(value);
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value = ast2obj_list(state, (asdl_seq*)o->v.TryStar.orelse,
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ast2obj_stmt);
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if (!value) goto failed;
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if (PyObject_SetAttr(result, state->orelse, value) == -1)
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goto failed;
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Py_DECREF(value);
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value = ast2obj_list(state, (asdl_seq*)o->v.TryStar.finalbody,
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ast2obj_stmt);
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if (!value) goto failed;
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if (PyObject_SetAttr(result, state->finalbody, value) == -1)
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goto failed;
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Py_DECREF(value);
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break;
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case Assert_kind:
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tp = (PyTypeObject *)state->Assert_type;
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result = PyType_GenericNew(tp, NULL, NULL);
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@ -7477,6 +7539,170 @@ obj2ast_stmt(struct ast_state *state, PyObject* obj, stmt_ty* out, PyArena*
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if (*out == NULL) goto failed;
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return 0;
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}
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tp = state->TryStar_type;
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isinstance = PyObject_IsInstance(obj, tp);
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if (isinstance == -1) {
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return 1;
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}
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if (isinstance) {
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asdl_stmt_seq* body;
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asdl_excepthandler_seq* handlers;
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asdl_stmt_seq* orelse;
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asdl_stmt_seq* finalbody;
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if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
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return 1;
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}
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if (tmp == NULL) {
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PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from TryStar");
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return 1;
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}
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else {
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int res;
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Py_ssize_t len;
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Py_ssize_t i;
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if (!PyList_Check(tmp)) {
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PyErr_Format(PyExc_TypeError, "TryStar field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
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goto failed;
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}
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len = PyList_GET_SIZE(tmp);
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body = _Py_asdl_stmt_seq_new(len, arena);
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if (body == NULL) goto failed;
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for (i = 0; i < len; i++) {
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stmt_ty val;
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PyObject *tmp2 = PyList_GET_ITEM(tmp, i);
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Py_INCREF(tmp2);
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if (Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
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goto failed;
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}
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res = obj2ast_stmt(state, tmp2, &val, arena);
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Py_LeaveRecursiveCall();
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Py_DECREF(tmp2);
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if (res != 0) goto failed;
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if (len != PyList_GET_SIZE(tmp)) {
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PyErr_SetString(PyExc_RuntimeError, "TryStar field \"body\" changed size during iteration");
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goto failed;
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}
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asdl_seq_SET(body, i, val);
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}
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Py_CLEAR(tmp);
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}
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if (_PyObject_LookupAttr(obj, state->handlers, &tmp) < 0) {
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return 1;
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}
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if (tmp == NULL) {
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PyErr_SetString(PyExc_TypeError, "required field \"handlers\" missing from TryStar");
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return 1;
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}
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else {
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int res;
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Py_ssize_t len;
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Py_ssize_t i;
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if (!PyList_Check(tmp)) {
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PyErr_Format(PyExc_TypeError, "TryStar field \"handlers\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
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goto failed;
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}
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len = PyList_GET_SIZE(tmp);
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handlers = _Py_asdl_excepthandler_seq_new(len, arena);
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if (handlers == NULL) goto failed;
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for (i = 0; i < len; i++) {
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excepthandler_ty val;
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PyObject *tmp2 = PyList_GET_ITEM(tmp, i);
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Py_INCREF(tmp2);
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if (Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
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goto failed;
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}
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res = obj2ast_excepthandler(state, tmp2, &val, arena);
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Py_LeaveRecursiveCall();
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Py_DECREF(tmp2);
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if (res != 0) goto failed;
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if (len != PyList_GET_SIZE(tmp)) {
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PyErr_SetString(PyExc_RuntimeError, "TryStar field \"handlers\" changed size during iteration");
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goto failed;
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}
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asdl_seq_SET(handlers, i, val);
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}
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Py_CLEAR(tmp);
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}
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if (_PyObject_LookupAttr(obj, state->orelse, &tmp) < 0) {
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return 1;
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}
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if (tmp == NULL) {
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PyErr_SetString(PyExc_TypeError, "required field \"orelse\" missing from TryStar");
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return 1;
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}
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else {
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int res;
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Py_ssize_t len;
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Py_ssize_t i;
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if (!PyList_Check(tmp)) {
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PyErr_Format(PyExc_TypeError, "TryStar field \"orelse\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
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goto failed;
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}
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len = PyList_GET_SIZE(tmp);
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orelse = _Py_asdl_stmt_seq_new(len, arena);
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if (orelse == NULL) goto failed;
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for (i = 0; i < len; i++) {
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stmt_ty val;
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PyObject *tmp2 = PyList_GET_ITEM(tmp, i);
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Py_INCREF(tmp2);
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if (Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
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goto failed;
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}
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res = obj2ast_stmt(state, tmp2, &val, arena);
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Py_LeaveRecursiveCall();
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Py_DECREF(tmp2);
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if (res != 0) goto failed;
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if (len != PyList_GET_SIZE(tmp)) {
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PyErr_SetString(PyExc_RuntimeError, "TryStar field \"orelse\" changed size during iteration");
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goto failed;
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}
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asdl_seq_SET(orelse, i, val);
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}
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Py_CLEAR(tmp);
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}
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if (_PyObject_LookupAttr(obj, state->finalbody, &tmp) < 0) {
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return 1;
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}
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if (tmp == NULL) {
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PyErr_SetString(PyExc_TypeError, "required field \"finalbody\" missing from TryStar");
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return 1;
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}
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else {
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int res;
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Py_ssize_t len;
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Py_ssize_t i;
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if (!PyList_Check(tmp)) {
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PyErr_Format(PyExc_TypeError, "TryStar field \"finalbody\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
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goto failed;
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}
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len = PyList_GET_SIZE(tmp);
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finalbody = _Py_asdl_stmt_seq_new(len, arena);
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if (finalbody == NULL) goto failed;
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for (i = 0; i < len; i++) {
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stmt_ty val;
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PyObject *tmp2 = PyList_GET_ITEM(tmp, i);
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Py_INCREF(tmp2);
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if (Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
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goto failed;
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}
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res = obj2ast_stmt(state, tmp2, &val, arena);
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Py_LeaveRecursiveCall();
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Py_DECREF(tmp2);
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if (res != 0) goto failed;
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if (len != PyList_GET_SIZE(tmp)) {
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PyErr_SetString(PyExc_RuntimeError, "TryStar field \"finalbody\" changed size during iteration");
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goto failed;
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}
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asdl_seq_SET(finalbody, i, val);
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}
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Py_CLEAR(tmp);
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}
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*out = _PyAST_TryStar(body, handlers, orelse, finalbody, lineno,
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col_offset, end_lineno, end_col_offset, arena);
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if (*out == NULL) goto failed;
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return 0;
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}
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tp = state->Assert_type;
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isinstance = PyObject_IsInstance(obj, tp);
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if (isinstance == -1) {
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@ -11687,6 +11913,9 @@ astmodule_exec(PyObject *m)
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if (PyModule_AddObjectRef(m, "Try", state->Try_type) < 0) {
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return -1;
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}
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if (PyModule_AddObjectRef(m, "TryStar", state->TryStar_type) < 0) {
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return -1;
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}
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if (PyModule_AddObjectRef(m, "Assert", state->Assert_type) < 0) {
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return -1;
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}
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