Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2 | /* Execute compiled code */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 4 | /* XXX TO DO: |
| 5 | XXX how to pass arguments to call_trace? |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 6 | XXX speed up searching for keywords by using a dictionary |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 7 | XXX document it! |
| 8 | */ |
| 9 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 10 | #include "Python.h" |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 11 | |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 12 | #include "compile.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 13 | #include "frameobject.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 14 | #include "eval.h" |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 15 | #include "opcode.h" |
| 16 | |
Jack Jansen | cbf630f | 2000-07-11 21:59:16 +0000 | [diff] [blame] | 17 | #ifdef macintosh |
| 18 | #include "macglue.h" |
| 19 | #endif |
| 20 | |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 21 | #include <ctype.h> |
| 22 | |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 23 | /* Turn this on if your compiler chokes on the big switch: */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 24 | /* #define CASE_TOO_BIG 1 */ |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 25 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 26 | #ifdef Py_DEBUG |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 27 | /* For debugging the interpreter: */ |
| 28 | #define LLTRACE 1 /* Low-level trace feature */ |
| 29 | #define CHECKEXC 1 /* Double-check exception checking */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 30 | #endif |
| 31 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 32 | typedef PyObject *(*callproc)(PyObject *, PyObject *, PyObject *); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 33 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 34 | /* Forward declarations */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 35 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 36 | static PyObject *eval_code2(PyCodeObject *, |
| 37 | PyObject *, PyObject *, |
| 38 | PyObject **, int, |
| 39 | PyObject **, int, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 40 | PyObject **, int, |
| 41 | PyObject *); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 42 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 43 | static PyObject *eval_frame(PyFrameObject *); |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 44 | static char *get_func_name(PyObject *); |
| 45 | static char *get_func_desc(PyObject *); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 46 | static PyObject *call_object(PyObject *, PyObject *, PyObject *); |
| 47 | static PyObject *call_cfunction(PyObject *, PyObject *, PyObject *); |
| 48 | static PyObject *call_instance(PyObject *, PyObject *, PyObject *); |
| 49 | static PyObject *call_method(PyObject *, PyObject *, PyObject *); |
| 50 | static PyObject *call_eval_code2(PyObject *, PyObject *, PyObject *); |
| 51 | static PyObject *fast_function(PyObject *, PyObject ***, int, int, int); |
| 52 | static PyObject *fast_cfunction(PyObject *, PyObject ***, int); |
| 53 | static PyObject *do_call(PyObject *, PyObject ***, int, int); |
| 54 | static PyObject *ext_do_call(PyObject *, PyObject ***, int, int, int); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 55 | static PyObject *update_keyword_args(PyObject *, int, PyObject ***,PyObject *); |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 56 | static PyObject *update_star_args(int, int, PyObject *, PyObject ***); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 57 | static PyObject *load_args(PyObject ***, int); |
| 58 | #define CALL_FLAG_VAR 1 |
| 59 | #define CALL_FLAG_KW 2 |
| 60 | |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 61 | #ifdef LLTRACE |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 62 | static int prtrace(PyObject *, char *); |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 63 | #endif |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 64 | static void call_exc_trace(PyObject **, PyObject**, PyFrameObject *); |
| 65 | static int call_trace(PyObject **, PyObject **, |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 66 | PyFrameObject *, PyObject *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 67 | static PyObject *loop_subscript(PyObject *, PyObject *); |
| 68 | static PyObject *apply_slice(PyObject *, PyObject *, PyObject *); |
| 69 | static int assign_slice(PyObject *, PyObject *, |
| 70 | PyObject *, PyObject *); |
| 71 | static PyObject *cmp_outcome(int, PyObject *, PyObject *); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 72 | static PyObject *import_from(PyObject *, PyObject *); |
| 73 | static int import_all_from(PyObject *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 74 | static PyObject *build_class(PyObject *, PyObject *, PyObject *); |
| 75 | static int exec_statement(PyFrameObject *, |
| 76 | PyObject *, PyObject *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 77 | static void set_exc_info(PyThreadState *, PyObject *, PyObject *, PyObject *); |
| 78 | static void reset_exc_info(PyThreadState *); |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 79 | static void format_exc_check_arg(PyObject *, char *, PyObject *); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 80 | |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 81 | #define NAME_ERROR_MSG \ |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 82 | "name '%.200s' is not defined" |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 83 | #define GLOBAL_NAME_ERROR_MSG \ |
| 84 | "global name '%.200s' is not defined" |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 85 | #define UNBOUNDLOCAL_ERROR_MSG \ |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 86 | "local variable '%.200s' referenced before assignment" |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 87 | #define UNBOUNDFREE_ERROR_MSG \ |
| 88 | "free variable '%.200s' referenced before assignment" \ |
| 89 | " in enclosing scope" |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 90 | |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 91 | /* Dynamic execution profile */ |
| 92 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 93 | #ifdef DXPAIRS |
| 94 | static long dxpairs[257][256]; |
| 95 | #define dxp dxpairs[256] |
| 96 | #else |
| 97 | static long dxp[256]; |
| 98 | #endif |
| 99 | #endif |
| 100 | |
Fred Drake | 904aa7b | 2001-06-08 04:33:09 +0000 | [diff] [blame] | 101 | /* Cached interned string objects used for calling the profile and |
| 102 | * trace functions. |
| 103 | */ |
| 104 | static PyObject *str_call = NULL; |
| 105 | static PyObject *str_exception = NULL; |
| 106 | static PyObject *str_line = NULL; |
| 107 | static PyObject *str_return = NULL; |
| 108 | |
| 109 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 110 | staticforward PyTypeObject gentype; |
| 111 | |
| 112 | typedef struct { |
| 113 | PyObject_HEAD |
| 114 | PyFrameObject *frame; |
| 115 | int running; /* true if generator is being executed */ |
| 116 | } genobject; |
| 117 | |
| 118 | static PyObject * |
| 119 | gen_new(PyFrameObject *f) |
| 120 | { |
| 121 | genobject *gen = PyObject_New(genobject, &gentype); |
| 122 | if (gen == NULL) { |
| 123 | Py_DECREF(f); |
| 124 | return NULL; |
| 125 | } |
| 126 | gen->frame = f; |
| 127 | gen->running = 0; |
| 128 | return (PyObject *)gen; |
| 129 | } |
| 130 | |
| 131 | static void |
| 132 | gen_dealloc(genobject *gen) |
| 133 | { |
| 134 | Py_DECREF(gen->frame); |
| 135 | PyObject_DEL(gen); |
| 136 | } |
| 137 | |
| 138 | static PyObject * |
| 139 | gen_iternext(genobject *gen) |
| 140 | { |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 141 | PyThreadState *tstate = PyThreadState_GET(); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 142 | PyFrameObject *f = gen->frame; |
| 143 | PyObject *result; |
| 144 | |
| 145 | if (gen->running) { |
| 146 | PyErr_SetString(PyExc_ValueError, |
| 147 | "generator already executing"); |
| 148 | return NULL; |
| 149 | } |
Tim Peters | 8c96369 | 2001-06-23 05:26:56 +0000 | [diff] [blame] | 150 | if (f->f_stacktop == NULL) |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 151 | return NULL; |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 152 | |
| 153 | /* Generators always return to their most recent caller, not |
| 154 | * necessarily their creator. */ |
Tim Peters | 5eb4b87 | 2001-06-23 05:47:56 +0000 | [diff] [blame^] | 155 | Py_XINCREF(tstate->frame); |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 156 | assert(f->f_back == NULL); |
| 157 | f->f_back = tstate->frame; |
| 158 | |
| 159 | gen->running = 1; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 160 | result = eval_frame(f); |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 161 | gen->running = 0; |
| 162 | |
| 163 | /* Don't keep the reference to f_back any longer than necessary. It |
| 164 | * may keep a chain of frames alive or it could create a reference |
| 165 | * cycle. */ |
Tim Peters | 5eb4b87 | 2001-06-23 05:47:56 +0000 | [diff] [blame^] | 166 | Py_XDECREF(f->f_back); |
Tim Peters | 6302ec6 | 2001-06-20 06:57:32 +0000 | [diff] [blame] | 167 | f->f_back = NULL; |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 168 | |
| 169 | return result; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 170 | } |
| 171 | |
| 172 | static PyObject * |
| 173 | gen_next(genobject *gen, PyObject *args) |
| 174 | { |
| 175 | PyObject *result; |
| 176 | |
| 177 | if (!PyArg_ParseTuple(args, ":next")) |
| 178 | return NULL; |
| 179 | |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 180 | result = gen_iternext(gen); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 181 | |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 182 | if (result == NULL && !PyErr_Occurred()) { |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 183 | PyErr_SetObject(PyExc_StopIteration, Py_None); |
| 184 | return NULL; |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 185 | } |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 186 | |
| 187 | return result; |
| 188 | } |
| 189 | |
| 190 | static PyObject * |
| 191 | gen_getiter(PyObject *gen) |
| 192 | { |
| 193 | Py_INCREF(gen); |
| 194 | return gen; |
| 195 | } |
| 196 | |
| 197 | static struct PyMethodDef gen_methods[] = { |
| 198 | {"next", (PyCFunction)gen_next, METH_VARARGS, |
| 199 | "next() -- get the next value, or raise StopIteration"}, |
| 200 | {NULL, NULL} /* Sentinel */ |
| 201 | }; |
| 202 | |
| 203 | static PyObject * |
| 204 | gen_getattr(genobject *gen, char *name) |
| 205 | { |
| 206 | return Py_FindMethod(gen_methods, (PyObject *)gen, name); |
| 207 | } |
| 208 | |
| 209 | statichere PyTypeObject gentype = { |
| 210 | PyObject_HEAD_INIT(&PyType_Type) |
| 211 | 0, /* ob_size */ |
| 212 | "generator", /* tp_name */ |
| 213 | sizeof(genobject), /* tp_basicsize */ |
| 214 | 0, /* tp_itemsize */ |
| 215 | /* methods */ |
| 216 | (destructor)gen_dealloc, /* tp_dealloc */ |
| 217 | 0, /* tp_print */ |
| 218 | (getattrfunc)gen_getattr, /* tp_getattr */ |
| 219 | 0, /* tp_setattr */ |
| 220 | 0, /* tp_compare */ |
| 221 | 0, /* tp_repr */ |
| 222 | 0, /* tp_as_number */ |
| 223 | 0, /* tp_as_sequence */ |
| 224 | 0, /* tp_as_mapping */ |
| 225 | 0, /* tp_hash */ |
| 226 | 0, /* tp_call */ |
| 227 | 0, /* tp_str */ |
| 228 | 0, /* tp_getattro */ |
| 229 | 0, /* tp_setattro */ |
| 230 | 0, /* tp_as_buffer */ |
| 231 | Py_TPFLAGS_DEFAULT, /* tp_flags */ |
| 232 | 0, /* tp_doc */ |
| 233 | 0, /* tp_traverse */ |
| 234 | 0, /* tp_clear */ |
| 235 | 0, /* tp_richcompare */ |
| 236 | 0, /* tp_weaklistoffset */ |
| 237 | (getiterfunc)gen_getiter, /* tp_iter */ |
| 238 | (iternextfunc)gen_iternext, /* tp_iternext */ |
| 239 | }; |
| 240 | |
| 241 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 242 | #ifdef WITH_THREAD |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 243 | |
Guido van Rossum | 2571cc8 | 1999-04-07 16:07:23 +0000 | [diff] [blame] | 244 | #ifndef DONT_HAVE_ERRNO_H |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 245 | #include <errno.h> |
Guido van Rossum | 2571cc8 | 1999-04-07 16:07:23 +0000 | [diff] [blame] | 246 | #endif |
Guido van Rossum | 49b5606 | 1998-10-01 20:42:43 +0000 | [diff] [blame] | 247 | #include "pythread.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 248 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 249 | extern int _PyThread_Started; /* Flag for Py_Exit */ |
| 250 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 251 | static PyThread_type_lock interpreter_lock = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 252 | static long main_thread = 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 253 | |
| 254 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 255 | PyEval_InitThreads(void) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 256 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 257 | if (interpreter_lock) |
Sjoerd Mullender | ed59d20 | 1993-01-06 13:36:38 +0000 | [diff] [blame] | 258 | return; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 259 | _PyThread_Started = 1; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 260 | interpreter_lock = PyThread_allocate_lock(); |
| 261 | PyThread_acquire_lock(interpreter_lock, 1); |
| 262 | main_thread = PyThread_get_thread_ident(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 263 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 264 | |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 265 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 266 | PyEval_AcquireLock(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 267 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 268 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 272 | PyEval_ReleaseLock(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 273 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 274 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 275 | } |
| 276 | |
| 277 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 278 | PyEval_AcquireThread(PyThreadState *tstate) |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 279 | { |
| 280 | if (tstate == NULL) |
| 281 | Py_FatalError("PyEval_AcquireThread: NULL new thread state"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 282 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 283 | if (PyThreadState_Swap(tstate) != NULL) |
| 284 | Py_FatalError( |
| 285 | "PyEval_AcquireThread: non-NULL old thread state"); |
| 286 | } |
| 287 | |
| 288 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 289 | PyEval_ReleaseThread(PyThreadState *tstate) |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 290 | { |
| 291 | if (tstate == NULL) |
| 292 | Py_FatalError("PyEval_ReleaseThread: NULL thread state"); |
| 293 | if (PyThreadState_Swap(NULL) != tstate) |
| 294 | Py_FatalError("PyEval_ReleaseThread: wrong thread state"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 295 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 296 | } |
Guido van Rossum | fee3a2d | 2000-08-27 17:34:07 +0000 | [diff] [blame] | 297 | |
| 298 | /* This function is called from PyOS_AfterFork to ensure that newly |
| 299 | created child processes don't hold locks referring to threads which |
| 300 | are not running in the child process. (This could also be done using |
| 301 | pthread_atfork mechanism, at least for the pthreads implementation.) */ |
| 302 | |
| 303 | void |
| 304 | PyEval_ReInitThreads(void) |
| 305 | { |
| 306 | if (!interpreter_lock) |
| 307 | return; |
| 308 | /*XXX Can't use PyThread_free_lock here because it does too |
| 309 | much error-checking. Doing this cleanly would require |
| 310 | adding a new function to each thread_*.h. Instead, just |
| 311 | create a new lock and waste a little bit of memory */ |
| 312 | interpreter_lock = PyThread_allocate_lock(); |
| 313 | PyThread_acquire_lock(interpreter_lock, 1); |
| 314 | main_thread = PyThread_get_thread_ident(); |
| 315 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 316 | #endif |
| 317 | |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 318 | /* Functions save_thread and restore_thread are always defined so |
| 319 | dynamically loaded modules needn't be compiled separately for use |
| 320 | with and without threads: */ |
| 321 | |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame] | 322 | PyThreadState * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 323 | PyEval_SaveThread(void) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 324 | { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 325 | PyThreadState *tstate = PyThreadState_Swap(NULL); |
| 326 | if (tstate == NULL) |
| 327 | Py_FatalError("PyEval_SaveThread: NULL tstate"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 328 | #ifdef WITH_THREAD |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 329 | if (interpreter_lock) |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 330 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 331 | #endif |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 332 | return tstate; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 336 | PyEval_RestoreThread(PyThreadState *tstate) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 337 | { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 338 | if (tstate == NULL) |
| 339 | Py_FatalError("PyEval_RestoreThread: NULL tstate"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 340 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 341 | if (interpreter_lock) { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 342 | int err = errno; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 343 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 344 | errno = err; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 345 | } |
| 346 | #endif |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 347 | PyThreadState_Swap(tstate); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 348 | } |
| 349 | |
| 350 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 351 | /* Mechanism whereby asynchronously executing callbacks (e.g. UNIX |
| 352 | signal handlers or Mac I/O completion routines) can schedule calls |
| 353 | to a function to be called synchronously. |
| 354 | The synchronous function is called with one void* argument. |
| 355 | It should return 0 for success or -1 for failure -- failure should |
| 356 | be accompanied by an exception. |
| 357 | |
| 358 | If registry succeeds, the registry function returns 0; if it fails |
| 359 | (e.g. due to too many pending calls) it returns -1 (without setting |
| 360 | an exception condition). |
| 361 | |
| 362 | Note that because registry may occur from within signal handlers, |
| 363 | or other asynchronous events, calling malloc() is unsafe! |
| 364 | |
| 365 | #ifdef WITH_THREAD |
| 366 | Any thread can schedule pending calls, but only the main thread |
| 367 | will execute them. |
| 368 | #endif |
| 369 | |
| 370 | XXX WARNING! ASYNCHRONOUSLY EXECUTING CODE! |
| 371 | There are two possible race conditions: |
| 372 | (1) nested asynchronous registry calls; |
| 373 | (2) registry calls made while pending calls are being processed. |
| 374 | While (1) is very unlikely, (2) is a real possibility. |
| 375 | The current code is safe against (2), but not against (1). |
| 376 | The safety against (2) is derived from the fact that only one |
| 377 | thread (the main thread) ever takes things out of the queue. |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 378 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 379 | XXX Darn! With the advent of thread state, we should have an array |
| 380 | of pending calls per thread in the thread state! Later... |
| 381 | */ |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 382 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 383 | #define NPENDINGCALLS 32 |
| 384 | static struct { |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 385 | int (*func)(void *); |
| 386 | void *arg; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 387 | } pendingcalls[NPENDINGCALLS]; |
| 388 | static volatile int pendingfirst = 0; |
| 389 | static volatile int pendinglast = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 390 | static volatile int things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 391 | |
| 392 | int |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 393 | Py_AddPendingCall(int (*func)(void *), void *arg) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 394 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 395 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 396 | int i, j; |
| 397 | /* XXX Begin critical section */ |
| 398 | /* XXX If you want this to be safe against nested |
| 399 | XXX asynchronous calls, you'll have to work harder! */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 400 | if (busy) |
| 401 | return -1; |
| 402 | busy = 1; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 403 | i = pendinglast; |
| 404 | j = (i + 1) % NPENDINGCALLS; |
| 405 | if (j == pendingfirst) |
| 406 | return -1; /* Queue full */ |
| 407 | pendingcalls[i].func = func; |
| 408 | pendingcalls[i].arg = arg; |
| 409 | pendinglast = j; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 410 | things_to_do = 1; /* Signal main loop */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 411 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 412 | /* XXX End critical section */ |
| 413 | return 0; |
| 414 | } |
| 415 | |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 416 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 417 | Py_MakePendingCalls(void) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 418 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 419 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 420 | #ifdef WITH_THREAD |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 421 | if (main_thread && PyThread_get_thread_ident() != main_thread) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 422 | return 0; |
| 423 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 424 | if (busy) |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 425 | return 0; |
| 426 | busy = 1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 427 | things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 428 | for (;;) { |
| 429 | int i; |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 430 | int (*func)(void *); |
| 431 | void *arg; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 432 | i = pendingfirst; |
| 433 | if (i == pendinglast) |
| 434 | break; /* Queue empty */ |
| 435 | func = pendingcalls[i].func; |
| 436 | arg = pendingcalls[i].arg; |
| 437 | pendingfirst = (i + 1) % NPENDINGCALLS; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 438 | if (func(arg) < 0) { |
| 439 | busy = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 440 | things_to_do = 1; /* We're not done yet */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 441 | return -1; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 442 | } |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 443 | } |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 444 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 445 | return 0; |
| 446 | } |
| 447 | |
| 448 | |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 449 | /* The interpreter's recursion limit */ |
| 450 | |
Guido van Rossum | 349ff6f | 2000-09-01 01:52:08 +0000 | [diff] [blame] | 451 | static int recursion_limit = 1000; |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 452 | |
Vladimir Marangozov | 7bd25be | 2000-09-01 11:07:19 +0000 | [diff] [blame] | 453 | int |
| 454 | Py_GetRecursionLimit(void) |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 455 | { |
| 456 | return recursion_limit; |
| 457 | } |
| 458 | |
Vladimir Marangozov | 7bd25be | 2000-09-01 11:07:19 +0000 | [diff] [blame] | 459 | void |
| 460 | Py_SetRecursionLimit(int new_limit) |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 461 | { |
| 462 | recursion_limit = new_limit; |
| 463 | } |
| 464 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 465 | /* Status code for main loop (reason for stack unwind) */ |
| 466 | |
| 467 | enum why_code { |
| 468 | WHY_NOT, /* No error */ |
| 469 | WHY_EXCEPTION, /* Exception occurred */ |
| 470 | WHY_RERAISE, /* Exception re-raised by 'finally' */ |
| 471 | WHY_RETURN, /* 'return' statement */ |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 472 | WHY_BREAK, /* 'break' statement */ |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 473 | WHY_CONTINUE, /* 'continue' statement */ |
| 474 | WHY_YIELD, /* 'yield' operator */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 475 | }; |
| 476 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 477 | static enum why_code do_raise(PyObject *, PyObject *, PyObject *); |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 478 | static int unpack_iterable(PyObject *, int, PyObject **); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 479 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 480 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 481 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 482 | PyEval_EvalCode(PyCodeObject *co, PyObject *globals, PyObject *locals) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 483 | { |
| 484 | return eval_code2(co, |
| 485 | globals, locals, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 486 | (PyObject **)NULL, 0, |
| 487 | (PyObject **)NULL, 0, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 488 | (PyObject **)NULL, 0, |
| 489 | NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 490 | } |
| 491 | |
| 492 | |
| 493 | /* Interpreter main loop */ |
| 494 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 495 | PyObject * |
| 496 | eval_frame(PyFrameObject *f) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 497 | { |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 498 | #ifdef DXPAIRS |
| 499 | int lastopcode = 0; |
| 500 | #endif |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 501 | PyObject **stack_pointer; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 502 | register unsigned char *next_instr; |
Moshe Zadka | aa39a7e | 2000-08-07 06:34:45 +0000 | [diff] [blame] | 503 | register int opcode=0; /* Current opcode */ |
| 504 | register int oparg=0; /* Current opcode argument, if any */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 505 | register enum why_code why; /* Reason for block stack unwind */ |
| 506 | register int err; /* Error status -- nonzero if error */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 507 | register PyObject *x; /* Result object -- NULL if error */ |
| 508 | register PyObject *v; /* Temporary objects popped off stack */ |
| 509 | register PyObject *w; |
| 510 | register PyObject *u; |
| 511 | register PyObject *t; |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 512 | register PyObject *stream = NULL; /* for PRINT opcodes */ |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 513 | register PyObject **fastlocals, **freevars; |
Guido van Rossum | 014518f | 1998-11-23 21:09:51 +0000 | [diff] [blame] | 514 | PyObject *retval = NULL; /* Return value */ |
Guido van Rossum | 885553e | 1998-12-21 18:33:30 +0000 | [diff] [blame] | 515 | PyThreadState *tstate = PyThreadState_GET(); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 516 | PyCodeObject *co; |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 517 | unsigned char *first_instr; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 518 | #ifdef LLTRACE |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 519 | int lltrace; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 520 | #endif |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 521 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 522 | /* Make it easier to find out where we are with a debugger */ |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 523 | char *filename; |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 524 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 525 | |
| 526 | /* Code access macros */ |
| 527 | |
| 528 | #define GETCONST(i) Getconst(f, i) |
| 529 | #define GETNAME(i) Getname(f, i) |
| 530 | #define GETNAMEV(i) Getnamev(f, i) |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 531 | #define INSTR_OFFSET() (next_instr - first_instr) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 532 | #define NEXTOP() (*next_instr++) |
| 533 | #define NEXTARG() (next_instr += 2, (next_instr[-1]<<8) + next_instr[-2]) |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 534 | #define JUMPTO(x) (next_instr = first_instr + (x)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 535 | #define JUMPBY(x) (next_instr += (x)) |
| 536 | |
| 537 | /* Stack manipulation macros */ |
| 538 | |
| 539 | #define STACK_LEVEL() (stack_pointer - f->f_valuestack) |
| 540 | #define EMPTY() (STACK_LEVEL() == 0) |
| 541 | #define TOP() (stack_pointer[-1]) |
| 542 | #define BASIC_PUSH(v) (*stack_pointer++ = (v)) |
| 543 | #define BASIC_POP() (*--stack_pointer) |
| 544 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 545 | #ifdef LLTRACE |
| 546 | #define PUSH(v) (BASIC_PUSH(v), lltrace && prtrace(TOP(), "push")) |
| 547 | #define POP() (lltrace && prtrace(TOP(), "pop"), BASIC_POP()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 548 | #else |
| 549 | #define PUSH(v) BASIC_PUSH(v) |
| 550 | #define POP() BASIC_POP() |
| 551 | #endif |
| 552 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 553 | /* Local variable macros */ |
| 554 | |
| 555 | #define GETLOCAL(i) (fastlocals[i]) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 556 | #define SETLOCAL(i, value) do { Py_XDECREF(GETLOCAL(i)); \ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 557 | GETLOCAL(i) = value; } while (0) |
| 558 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 559 | /* Start of code */ |
| 560 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 561 | if (f == NULL) |
| 562 | return NULL; |
| 563 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 564 | #ifdef USE_STACKCHECK |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 565 | if (tstate->recursion_depth%10 == 0 && PyOS_CheckStack()) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 566 | PyErr_SetString(PyExc_MemoryError, "Stack overflow"); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 567 | return NULL; |
| 568 | } |
| 569 | #endif |
| 570 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 571 | /* push frame */ |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 572 | if (++tstate->recursion_depth > recursion_limit) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 573 | --tstate->recursion_depth; |
| 574 | PyErr_SetString(PyExc_RuntimeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 575 | "maximum recursion depth exceeded"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 576 | tstate->frame = f->f_back; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 577 | return NULL; |
| 578 | } |
| 579 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 580 | tstate->frame = f; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 581 | co = f->f_code; |
| 582 | fastlocals = f->f_localsplus; |
| 583 | freevars = f->f_localsplus + f->f_nlocals; |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 584 | _PyCode_GETCODEPTR(co, &first_instr); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 585 | next_instr = first_instr + f->f_lasti; |
Tim Peters | 8c96369 | 2001-06-23 05:26:56 +0000 | [diff] [blame] | 586 | stack_pointer = f->f_stacktop; |
| 587 | assert(stack_pointer != NULL); |
| 588 | f->f_stacktop = NULL; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 589 | |
| 590 | #ifdef LLTRACE |
| 591 | lltrace = PyDict_GetItemString(f->f_globals,"__lltrace__") != NULL; |
| 592 | #endif |
| 593 | #if defined(Py_DEBUG) || defined(LLTRACE) |
| 594 | filename = PyString_AsString(co->co_filename); |
| 595 | #endif |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 596 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 597 | why = WHY_NOT; |
| 598 | err = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 599 | x = Py_None; /* Not a reference, just anything non-NULL */ |
Fred Drake | 48fba73 | 2000-10-11 13:54:07 +0000 | [diff] [blame] | 600 | w = NULL; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 601 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 602 | for (;;) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 603 | /* Do periodic things. Doing this every time through |
| 604 | the loop would add too much overhead, so we do it |
| 605 | only every Nth instruction. We also do it if |
| 606 | ``things_to_do'' is set, i.e. when an asynchronous |
| 607 | event needs attention (e.g. a signal handler or |
| 608 | async I/O handler); see Py_AddPendingCall() and |
| 609 | Py_MakePendingCalls() above. */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 610 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 611 | if (things_to_do || --tstate->ticker < 0) { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 612 | tstate->ticker = tstate->interp->checkinterval; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 613 | if (things_to_do) { |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 614 | if (Py_MakePendingCalls() < 0) { |
| 615 | why = WHY_EXCEPTION; |
| 616 | goto on_error; |
| 617 | } |
| 618 | } |
Guido van Rossum | df0d00e | 1997-05-20 15:57:49 +0000 | [diff] [blame] | 619 | #if !defined(HAVE_SIGNAL_H) || defined(macintosh) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 620 | /* If we have true signals, the signal handler |
| 621 | will call Py_AddPendingCall() so we don't |
| 622 | have to call sigcheck(). On the Mac and |
| 623 | DOS, alas, we have to call it. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 624 | if (PyErr_CheckSignals()) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 625 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 626 | goto on_error; |
| 627 | } |
Guido van Rossum | 70d4478 | 1997-01-21 06:15:24 +0000 | [diff] [blame] | 628 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 629 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 630 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 631 | if (interpreter_lock) { |
| 632 | /* Give another thread a chance */ |
| 633 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 634 | if (PyThreadState_Swap(NULL) != tstate) |
| 635 | Py_FatalError("ceval: tstate mix-up"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 636 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 637 | |
| 638 | /* Other threads may run now */ |
| 639 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 640 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 641 | if (PyThreadState_Swap(tstate) != NULL) |
| 642 | Py_FatalError("ceval: orphan tstate"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 643 | } |
| 644 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 645 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 646 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 647 | /* Extract opcode and argument */ |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 648 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 649 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 650 | f->f_lasti = INSTR_OFFSET(); |
| 651 | #endif |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 652 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 653 | opcode = NEXTOP(); |
| 654 | if (HAS_ARG(opcode)) |
| 655 | oparg = NEXTARG(); |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 656 | dispatch_opcode: |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 657 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 658 | #ifdef DXPAIRS |
| 659 | dxpairs[lastopcode][opcode]++; |
| 660 | lastopcode = opcode; |
| 661 | #endif |
| 662 | dxp[opcode]++; |
| 663 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 664 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 665 | #ifdef LLTRACE |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 666 | /* Instruction tracing */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 667 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 668 | if (lltrace) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 669 | if (HAS_ARG(opcode)) { |
| 670 | printf("%d: %d, %d\n", |
| 671 | (int) (INSTR_OFFSET() - 3), |
| 672 | opcode, oparg); |
| 673 | } |
| 674 | else { |
| 675 | printf("%d: %d\n", |
| 676 | (int) (INSTR_OFFSET() - 1), opcode); |
| 677 | } |
| 678 | } |
| 679 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 680 | /* Main switch on opcode */ |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 681 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 682 | switch (opcode) { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 683 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 684 | /* BEWARE! |
| 685 | It is essential that any operation that fails sets either |
| 686 | x to NULL, err to nonzero, or why to anything but WHY_NOT, |
| 687 | and that no operation that succeeds does this! */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 688 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 689 | /* case STOP_CODE: this is an error! */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 690 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 691 | case POP_TOP: |
| 692 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 693 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 694 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 695 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 696 | case ROT_TWO: |
| 697 | v = POP(); |
| 698 | w = POP(); |
| 699 | PUSH(v); |
| 700 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 701 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 702 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 703 | case ROT_THREE: |
| 704 | v = POP(); |
| 705 | w = POP(); |
| 706 | x = POP(); |
| 707 | PUSH(v); |
| 708 | PUSH(x); |
| 709 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 710 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 711 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 712 | case ROT_FOUR: |
| 713 | u = POP(); |
| 714 | v = POP(); |
| 715 | w = POP(); |
| 716 | x = POP(); |
| 717 | PUSH(u); |
| 718 | PUSH(x); |
| 719 | PUSH(w); |
| 720 | PUSH(v); |
| 721 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 722 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 723 | case DUP_TOP: |
| 724 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 725 | Py_INCREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 726 | PUSH(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 727 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 728 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 729 | case DUP_TOPX: |
| 730 | switch (oparg) { |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 731 | case 1: |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 732 | x = TOP(); |
| 733 | Py_INCREF(x); |
| 734 | PUSH(x); |
| 735 | continue; |
| 736 | case 2: |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 737 | x = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 738 | Py_INCREF(x); |
| 739 | w = TOP(); |
| 740 | Py_INCREF(w); |
| 741 | PUSH(x); |
| 742 | PUSH(w); |
| 743 | PUSH(x); |
| 744 | continue; |
| 745 | case 3: |
| 746 | x = POP(); |
| 747 | Py_INCREF(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 748 | w = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 749 | Py_INCREF(w); |
| 750 | v = TOP(); |
| 751 | Py_INCREF(v); |
| 752 | PUSH(w); |
| 753 | PUSH(x); |
| 754 | PUSH(v); |
| 755 | PUSH(w); |
| 756 | PUSH(x); |
| 757 | continue; |
| 758 | case 4: |
| 759 | x = POP(); |
| 760 | Py_INCREF(x); |
| 761 | w = POP(); |
| 762 | Py_INCREF(w); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 763 | v = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 764 | Py_INCREF(v); |
| 765 | u = TOP(); |
| 766 | Py_INCREF(u); |
| 767 | PUSH(v); |
| 768 | PUSH(w); |
| 769 | PUSH(x); |
| 770 | PUSH(u); |
| 771 | PUSH(v); |
| 772 | PUSH(w); |
| 773 | PUSH(x); |
| 774 | continue; |
| 775 | case 5: |
| 776 | x = POP(); |
| 777 | Py_INCREF(x); |
| 778 | w = POP(); |
| 779 | Py_INCREF(w); |
| 780 | v = POP(); |
| 781 | Py_INCREF(v); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 782 | u = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 783 | Py_INCREF(u); |
| 784 | t = TOP(); |
| 785 | Py_INCREF(t); |
| 786 | PUSH(u); |
| 787 | PUSH(v); |
| 788 | PUSH(w); |
| 789 | PUSH(x); |
| 790 | PUSH(t); |
| 791 | PUSH(u); |
| 792 | PUSH(v); |
| 793 | PUSH(w); |
| 794 | PUSH(x); |
| 795 | continue; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 796 | default: |
Thomas Wouters | 0be483f | 2000-10-11 23:26:11 +0000 | [diff] [blame] | 797 | Py_FatalError("invalid argument to DUP_TOPX" |
| 798 | " (bytecode corruption?)"); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 799 | } |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 800 | break; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 801 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 802 | case UNARY_POSITIVE: |
| 803 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 804 | x = PyNumber_Positive(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 805 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 806 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 807 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 808 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 809 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 810 | case UNARY_NEGATIVE: |
| 811 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 812 | x = PyNumber_Negative(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 813 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 814 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 815 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 816 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 817 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 818 | case UNARY_NOT: |
| 819 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 820 | err = PyObject_IsTrue(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 821 | Py_DECREF(v); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 822 | if (err == 0) { |
| 823 | Py_INCREF(Py_True); |
| 824 | PUSH(Py_True); |
| 825 | continue; |
| 826 | } |
| 827 | else if (err > 0) { |
| 828 | Py_INCREF(Py_False); |
| 829 | PUSH(Py_False); |
| 830 | err = 0; |
| 831 | continue; |
| 832 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 833 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 834 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 835 | case UNARY_CONVERT: |
| 836 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 837 | x = PyObject_Repr(v); |
| 838 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 839 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 840 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 841 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 842 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 843 | case UNARY_INVERT: |
| 844 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 845 | x = PyNumber_Invert(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 846 | Py_DECREF(v); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 847 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 848 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 849 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 850 | |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 851 | case BINARY_POWER: |
| 852 | w = POP(); |
| 853 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 854 | x = PyNumber_Power(v, w, Py_None); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 855 | Py_DECREF(v); |
| 856 | Py_DECREF(w); |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 857 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 858 | if (x != NULL) continue; |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 859 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 860 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 861 | case BINARY_MULTIPLY: |
| 862 | w = POP(); |
| 863 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 864 | x = PyNumber_Multiply(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 865 | Py_DECREF(v); |
| 866 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 867 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 868 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 869 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 870 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 871 | case BINARY_DIVIDE: |
| 872 | w = POP(); |
| 873 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 874 | x = PyNumber_Divide(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 875 | Py_DECREF(v); |
| 876 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 877 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 878 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 879 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 880 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 881 | case BINARY_MODULO: |
| 882 | w = POP(); |
| 883 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 884 | x = PyNumber_Remainder(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 885 | Py_DECREF(v); |
| 886 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 887 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 888 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 889 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 890 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 891 | case BINARY_ADD: |
| 892 | w = POP(); |
| 893 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 894 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 895 | /* INLINE: int + int */ |
| 896 | register long a, b, i; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 897 | a = PyInt_AS_LONG(v); |
| 898 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 899 | i = a + b; |
| 900 | if ((i^a) < 0 && (i^b) < 0) { |
| 901 | PyErr_SetString(PyExc_OverflowError, |
| 902 | "integer addition"); |
| 903 | x = NULL; |
| 904 | } |
| 905 | else |
| 906 | x = PyInt_FromLong(i); |
| 907 | } |
| 908 | else |
| 909 | x = PyNumber_Add(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 910 | Py_DECREF(v); |
| 911 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 912 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 913 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 914 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 915 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 916 | case BINARY_SUBTRACT: |
| 917 | w = POP(); |
| 918 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 919 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 920 | /* INLINE: int - int */ |
| 921 | register long a, b, i; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 922 | a = PyInt_AS_LONG(v); |
| 923 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 924 | i = a - b; |
| 925 | if ((i^a) < 0 && (i^~b) < 0) { |
| 926 | PyErr_SetString(PyExc_OverflowError, |
| 927 | "integer subtraction"); |
| 928 | x = NULL; |
| 929 | } |
| 930 | else |
| 931 | x = PyInt_FromLong(i); |
| 932 | } |
| 933 | else |
| 934 | x = PyNumber_Subtract(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 935 | Py_DECREF(v); |
| 936 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 937 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 938 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 939 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 940 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 941 | case BINARY_SUBSCR: |
| 942 | w = POP(); |
| 943 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 944 | if (PyList_Check(v) && PyInt_Check(w)) { |
| 945 | /* INLINE: list[int] */ |
| 946 | long i = PyInt_AsLong(w); |
| 947 | if (i < 0) |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 948 | i += PyList_GET_SIZE(v); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 949 | if (i < 0 || |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 950 | i >= PyList_GET_SIZE(v)) { |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 951 | PyErr_SetString(PyExc_IndexError, |
| 952 | "list index out of range"); |
| 953 | x = NULL; |
| 954 | } |
| 955 | else { |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 956 | x = PyList_GET_ITEM(v, i); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 957 | Py_INCREF(x); |
| 958 | } |
| 959 | } |
| 960 | else |
| 961 | x = PyObject_GetItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 962 | Py_DECREF(v); |
| 963 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 964 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 965 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 966 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 967 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 968 | case BINARY_LSHIFT: |
| 969 | w = POP(); |
| 970 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 971 | x = PyNumber_Lshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 972 | Py_DECREF(v); |
| 973 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 974 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 975 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 976 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 977 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 978 | case BINARY_RSHIFT: |
| 979 | w = POP(); |
| 980 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 981 | x = PyNumber_Rshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 982 | Py_DECREF(v); |
| 983 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 984 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 985 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 986 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 987 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 988 | case BINARY_AND: |
| 989 | w = POP(); |
| 990 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 991 | x = PyNumber_And(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 992 | Py_DECREF(v); |
| 993 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 994 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 995 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 996 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 997 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 998 | case BINARY_XOR: |
| 999 | w = POP(); |
| 1000 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1001 | x = PyNumber_Xor(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1002 | Py_DECREF(v); |
| 1003 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1004 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1005 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1006 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1007 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1008 | case BINARY_OR: |
| 1009 | w = POP(); |
| 1010 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1011 | x = PyNumber_Or(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1012 | Py_DECREF(v); |
| 1013 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1014 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1015 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1016 | break; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1017 | |
| 1018 | case INPLACE_POWER: |
| 1019 | w = POP(); |
| 1020 | v = POP(); |
| 1021 | x = PyNumber_InPlacePower(v, w, Py_None); |
| 1022 | Py_DECREF(v); |
| 1023 | Py_DECREF(w); |
| 1024 | PUSH(x); |
| 1025 | if (x != NULL) continue; |
| 1026 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1027 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1028 | case INPLACE_MULTIPLY: |
| 1029 | w = POP(); |
| 1030 | v = POP(); |
| 1031 | x = PyNumber_InPlaceMultiply(v, w); |
| 1032 | Py_DECREF(v); |
| 1033 | Py_DECREF(w); |
| 1034 | PUSH(x); |
| 1035 | if (x != NULL) continue; |
| 1036 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1037 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1038 | case INPLACE_DIVIDE: |
| 1039 | w = POP(); |
| 1040 | v = POP(); |
| 1041 | x = PyNumber_InPlaceDivide(v, w); |
| 1042 | Py_DECREF(v); |
| 1043 | Py_DECREF(w); |
| 1044 | PUSH(x); |
| 1045 | if (x != NULL) continue; |
| 1046 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1047 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1048 | case INPLACE_MODULO: |
| 1049 | w = POP(); |
| 1050 | v = POP(); |
| 1051 | x = PyNumber_InPlaceRemainder(v, w); |
| 1052 | Py_DECREF(v); |
| 1053 | Py_DECREF(w); |
| 1054 | PUSH(x); |
| 1055 | if (x != NULL) continue; |
| 1056 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1057 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1058 | case INPLACE_ADD: |
| 1059 | w = POP(); |
| 1060 | v = POP(); |
| 1061 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1062 | /* INLINE: int + int */ |
| 1063 | register long a, b, i; |
| 1064 | a = PyInt_AS_LONG(v); |
| 1065 | b = PyInt_AS_LONG(w); |
| 1066 | i = a + b; |
| 1067 | if ((i^a) < 0 && (i^b) < 0) { |
| 1068 | PyErr_SetString(PyExc_OverflowError, |
| 1069 | "integer addition"); |
| 1070 | x = NULL; |
| 1071 | } |
| 1072 | else |
| 1073 | x = PyInt_FromLong(i); |
| 1074 | } |
| 1075 | else |
| 1076 | x = PyNumber_InPlaceAdd(v, w); |
| 1077 | Py_DECREF(v); |
| 1078 | Py_DECREF(w); |
| 1079 | PUSH(x); |
| 1080 | if (x != NULL) continue; |
| 1081 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1082 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1083 | case INPLACE_SUBTRACT: |
| 1084 | w = POP(); |
| 1085 | v = POP(); |
| 1086 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1087 | /* INLINE: int - int */ |
| 1088 | register long a, b, i; |
| 1089 | a = PyInt_AS_LONG(v); |
| 1090 | b = PyInt_AS_LONG(w); |
| 1091 | i = a - b; |
| 1092 | if ((i^a) < 0 && (i^~b) < 0) { |
| 1093 | PyErr_SetString(PyExc_OverflowError, |
| 1094 | "integer subtraction"); |
| 1095 | x = NULL; |
| 1096 | } |
| 1097 | else |
| 1098 | x = PyInt_FromLong(i); |
| 1099 | } |
| 1100 | else |
| 1101 | x = PyNumber_InPlaceSubtract(v, w); |
| 1102 | Py_DECREF(v); |
| 1103 | Py_DECREF(w); |
| 1104 | PUSH(x); |
| 1105 | if (x != NULL) continue; |
| 1106 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1107 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1108 | case INPLACE_LSHIFT: |
| 1109 | w = POP(); |
| 1110 | v = POP(); |
| 1111 | x = PyNumber_InPlaceLshift(v, w); |
| 1112 | Py_DECREF(v); |
| 1113 | Py_DECREF(w); |
| 1114 | PUSH(x); |
| 1115 | if (x != NULL) continue; |
| 1116 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1117 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1118 | case INPLACE_RSHIFT: |
| 1119 | w = POP(); |
| 1120 | v = POP(); |
| 1121 | x = PyNumber_InPlaceRshift(v, w); |
| 1122 | Py_DECREF(v); |
| 1123 | Py_DECREF(w); |
| 1124 | PUSH(x); |
| 1125 | if (x != NULL) continue; |
| 1126 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1127 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1128 | case INPLACE_AND: |
| 1129 | w = POP(); |
| 1130 | v = POP(); |
| 1131 | x = PyNumber_InPlaceAnd(v, w); |
| 1132 | Py_DECREF(v); |
| 1133 | Py_DECREF(w); |
| 1134 | PUSH(x); |
| 1135 | if (x != NULL) continue; |
| 1136 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1137 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1138 | case INPLACE_XOR: |
| 1139 | w = POP(); |
| 1140 | v = POP(); |
| 1141 | x = PyNumber_InPlaceXor(v, w); |
| 1142 | Py_DECREF(v); |
| 1143 | Py_DECREF(w); |
| 1144 | PUSH(x); |
| 1145 | if (x != NULL) continue; |
| 1146 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1147 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1148 | case INPLACE_OR: |
| 1149 | w = POP(); |
| 1150 | v = POP(); |
| 1151 | x = PyNumber_InPlaceOr(v, w); |
| 1152 | Py_DECREF(v); |
| 1153 | Py_DECREF(w); |
| 1154 | PUSH(x); |
| 1155 | if (x != NULL) continue; |
| 1156 | break; |
| 1157 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1158 | case SLICE+0: |
| 1159 | case SLICE+1: |
| 1160 | case SLICE+2: |
| 1161 | case SLICE+3: |
| 1162 | if ((opcode-SLICE) & 2) |
| 1163 | w = POP(); |
| 1164 | else |
| 1165 | w = NULL; |
| 1166 | if ((opcode-SLICE) & 1) |
| 1167 | v = POP(); |
| 1168 | else |
| 1169 | v = NULL; |
| 1170 | u = POP(); |
| 1171 | x = apply_slice(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1172 | Py_DECREF(u); |
| 1173 | Py_XDECREF(v); |
| 1174 | Py_XDECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1175 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1176 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1177 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1178 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1179 | case STORE_SLICE+0: |
| 1180 | case STORE_SLICE+1: |
| 1181 | case STORE_SLICE+2: |
| 1182 | case STORE_SLICE+3: |
| 1183 | if ((opcode-STORE_SLICE) & 2) |
| 1184 | w = POP(); |
| 1185 | else |
| 1186 | w = NULL; |
| 1187 | if ((opcode-STORE_SLICE) & 1) |
| 1188 | v = POP(); |
| 1189 | else |
| 1190 | v = NULL; |
| 1191 | u = POP(); |
| 1192 | t = POP(); |
| 1193 | err = assign_slice(u, v, w, t); /* u[v:w] = t */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1194 | Py_DECREF(t); |
| 1195 | Py_DECREF(u); |
| 1196 | Py_XDECREF(v); |
| 1197 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1198 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1199 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1200 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1201 | case DELETE_SLICE+0: |
| 1202 | case DELETE_SLICE+1: |
| 1203 | case DELETE_SLICE+2: |
| 1204 | case DELETE_SLICE+3: |
| 1205 | if ((opcode-DELETE_SLICE) & 2) |
| 1206 | w = POP(); |
| 1207 | else |
| 1208 | w = NULL; |
| 1209 | if ((opcode-DELETE_SLICE) & 1) |
| 1210 | v = POP(); |
| 1211 | else |
| 1212 | v = NULL; |
| 1213 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1214 | err = assign_slice(u, v, w, (PyObject *)NULL); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1215 | /* del u[v:w] */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1216 | Py_DECREF(u); |
| 1217 | Py_XDECREF(v); |
| 1218 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1219 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1220 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1221 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1222 | case STORE_SUBSCR: |
| 1223 | w = POP(); |
| 1224 | v = POP(); |
| 1225 | u = POP(); |
| 1226 | /* v[w] = u */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1227 | err = PyObject_SetItem(v, w, u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1228 | Py_DECREF(u); |
| 1229 | Py_DECREF(v); |
| 1230 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1231 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1232 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1233 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1234 | case DELETE_SUBSCR: |
| 1235 | w = POP(); |
| 1236 | v = POP(); |
| 1237 | /* del v[w] */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1238 | err = PyObject_DelItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1239 | Py_DECREF(v); |
| 1240 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1241 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1242 | break; |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1243 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1244 | case PRINT_EXPR: |
| 1245 | v = POP(); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1246 | w = PySys_GetObject("displayhook"); |
| 1247 | if (w == NULL) { |
| 1248 | PyErr_SetString(PyExc_RuntimeError, |
| 1249 | "lost sys.displayhook"); |
| 1250 | err = -1; |
Moshe Zadka | f5df383 | 2001-01-11 11:55:37 +0000 | [diff] [blame] | 1251 | x = NULL; |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1252 | } |
| 1253 | if (err == 0) { |
| 1254 | x = Py_BuildValue("(O)", v); |
| 1255 | if (x == NULL) |
| 1256 | err = -1; |
| 1257 | } |
| 1258 | if (err == 0) { |
| 1259 | w = PyEval_CallObject(w, x); |
Moshe Zadka | f5df383 | 2001-01-11 11:55:37 +0000 | [diff] [blame] | 1260 | Py_XDECREF(w); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1261 | if (w == NULL) |
| 1262 | err = -1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1263 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1264 | Py_DECREF(v); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1265 | Py_XDECREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1266 | break; |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1267 | |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1268 | case PRINT_ITEM_TO: |
| 1269 | w = stream = POP(); |
| 1270 | /* fall through to PRINT_ITEM */ |
| 1271 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1272 | case PRINT_ITEM: |
| 1273 | v = POP(); |
Barry Warsaw | 093abe0 | 2000-08-29 04:56:13 +0000 | [diff] [blame] | 1274 | if (stream == NULL || stream == Py_None) { |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1275 | w = PySys_GetObject("stdout"); |
| 1276 | if (w == NULL) { |
| 1277 | PyErr_SetString(PyExc_RuntimeError, |
| 1278 | "lost sys.stdout"); |
| 1279 | err = -1; |
| 1280 | } |
Guido van Rossum | 8f18320 | 1997-12-31 05:53:15 +0000 | [diff] [blame] | 1281 | } |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1282 | if (w != NULL && PyFile_SoftSpace(w, 1)) |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 1283 | err = PyFile_WriteString(" ", w); |
| 1284 | if (err == 0) |
| 1285 | err = PyFile_WriteObject(v, w, Py_PRINT_RAW); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1286 | if (err == 0 && PyString_Check(v)) { |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1287 | /* XXX move into writeobject() ? */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1288 | char *s = PyString_AsString(v); |
| 1289 | int len = PyString_Size(v); |
Guido van Rossum | 7f7f274 | 1995-02-10 17:01:56 +0000 | [diff] [blame] | 1290 | if (len > 0 && |
| 1291 | isspace(Py_CHARMASK(s[len-1])) && |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1292 | s[len-1] != ' ') |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1293 | PyFile_SoftSpace(w, 0); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1294 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1295 | Py_DECREF(v); |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1296 | Py_XDECREF(stream); |
| 1297 | stream = NULL; |
| 1298 | if (err == 0) |
| 1299 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1300 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1301 | |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1302 | case PRINT_NEWLINE_TO: |
| 1303 | w = stream = POP(); |
| 1304 | /* fall through to PRINT_NEWLINE */ |
| 1305 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1306 | case PRINT_NEWLINE: |
Barry Warsaw | 093abe0 | 2000-08-29 04:56:13 +0000 | [diff] [blame] | 1307 | if (stream == NULL || stream == Py_None) { |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1308 | w = PySys_GetObject("stdout"); |
| 1309 | if (w == NULL) |
| 1310 | PyErr_SetString(PyExc_RuntimeError, |
| 1311 | "lost sys.stdout"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1312 | } |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1313 | if (w != NULL) { |
| 1314 | err = PyFile_WriteString("\n", w); |
| 1315 | if (err == 0) |
| 1316 | PyFile_SoftSpace(w, 0); |
| 1317 | } |
| 1318 | Py_XDECREF(stream); |
| 1319 | stream = NULL; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1320 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1321 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1322 | |
| 1323 | #ifdef CASE_TOO_BIG |
| 1324 | default: switch (opcode) { |
| 1325 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1326 | case BREAK_LOOP: |
| 1327 | why = WHY_BREAK; |
| 1328 | break; |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 1329 | |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 1330 | case CONTINUE_LOOP: |
| 1331 | retval = PyInt_FromLong(oparg); |
| 1332 | why = WHY_CONTINUE; |
| 1333 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1334 | |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1335 | case RAISE_VARARGS: |
| 1336 | u = v = w = NULL; |
| 1337 | switch (oparg) { |
| 1338 | case 3: |
| 1339 | u = POP(); /* traceback */ |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1340 | /* Fallthrough */ |
| 1341 | case 2: |
| 1342 | v = POP(); /* value */ |
| 1343 | /* Fallthrough */ |
| 1344 | case 1: |
| 1345 | w = POP(); /* exc */ |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 1346 | case 0: /* Fallthrough */ |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1347 | why = do_raise(w, v, u); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1348 | break; |
| 1349 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1350 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1351 | "bad RAISE_VARARGS oparg"); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1352 | why = WHY_EXCEPTION; |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1353 | break; |
| 1354 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1355 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1356 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1357 | case LOAD_LOCALS: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1358 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1359 | PyErr_SetString(PyExc_SystemError, |
| 1360 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1361 | break; |
| 1362 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1363 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1364 | PUSH(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1365 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1366 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1367 | case RETURN_VALUE: |
| 1368 | retval = POP(); |
| 1369 | why = WHY_RETURN; |
| 1370 | break; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1371 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 1372 | case YIELD_VALUE: |
| 1373 | retval = POP(); |
Tim Peters | 8c96369 | 2001-06-23 05:26:56 +0000 | [diff] [blame] | 1374 | f->f_stacktop = stack_pointer; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 1375 | f->f_lasti = INSTR_OFFSET(); |
| 1376 | why = WHY_YIELD; |
| 1377 | break; |
| 1378 | |
| 1379 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1380 | case EXEC_STMT: |
| 1381 | w = POP(); |
| 1382 | v = POP(); |
| 1383 | u = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1384 | err = exec_statement(f, u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1385 | Py_DECREF(u); |
| 1386 | Py_DECREF(v); |
| 1387 | Py_DECREF(w); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1388 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1389 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1390 | case POP_BLOCK: |
| 1391 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1392 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1393 | while (STACK_LEVEL() > b->b_level) { |
| 1394 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1395 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1396 | } |
| 1397 | } |
| 1398 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1399 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1400 | case END_FINALLY: |
| 1401 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1402 | if (PyInt_Check(v)) { |
| 1403 | why = (enum why_code) PyInt_AsLong(v); |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 1404 | if (why == WHY_RETURN || |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 1405 | why == WHY_YIELD || |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 1406 | why == CONTINUE_LOOP) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1407 | retval = POP(); |
| 1408 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1409 | else if (PyString_Check(v) || PyClass_Check(v)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1410 | w = POP(); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1411 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1412 | PyErr_Restore(v, w, u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1413 | why = WHY_RERAISE; |
Guido van Rossum | 0db1ef9 | 1995-07-28 23:06:00 +0000 | [diff] [blame] | 1414 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1415 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1416 | else if (v != Py_None) { |
| 1417 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1418 | "'finally' pops bad exception"); |
| 1419 | why = WHY_EXCEPTION; |
| 1420 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1421 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1422 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1423 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1424 | case BUILD_CLASS: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1425 | u = POP(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1426 | v = POP(); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1427 | w = POP(); |
| 1428 | x = build_class(u, v, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1429 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1430 | Py_DECREF(u); |
| 1431 | Py_DECREF(v); |
| 1432 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1433 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1434 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1435 | case STORE_NAME: |
| 1436 | w = GETNAMEV(oparg); |
| 1437 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1438 | if ((x = f->f_locals) == NULL) { |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1439 | PyErr_Format(PyExc_SystemError, |
| 1440 | "no locals found when storing %s", |
Jeremy Hylton | 483638c | 2001-02-01 20:20:45 +0000 | [diff] [blame] | 1441 | PyObject_REPR(w)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1442 | break; |
| 1443 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1444 | err = PyDict_SetItem(x, w, v); |
| 1445 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1446 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1447 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1448 | case DELETE_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1449 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1450 | if ((x = f->f_locals) == NULL) { |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1451 | PyErr_Format(PyExc_SystemError, |
| 1452 | "no locals when deleting %s", |
Jeremy Hylton | 483638c | 2001-02-01 20:20:45 +0000 | [diff] [blame] | 1453 | PyObject_REPR(w)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1454 | break; |
| 1455 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1456 | if ((err = PyDict_DelItem(x, w)) != 0) |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1457 | format_exc_check_arg(PyExc_NameError, |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1458 | NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1459 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1460 | |
Thomas Wouters | 0be5aab | 2000-08-11 22:15:52 +0000 | [diff] [blame] | 1461 | case UNPACK_SEQUENCE: |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1462 | v = POP(); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1463 | if (PyTuple_Check(v)) { |
| 1464 | if (PyTuple_Size(v) != oparg) { |
| 1465 | PyErr_SetString(PyExc_ValueError, |
| 1466 | "unpack tuple of wrong size"); |
| 1467 | why = WHY_EXCEPTION; |
| 1468 | } |
| 1469 | else { |
| 1470 | for (; --oparg >= 0; ) { |
| 1471 | w = PyTuple_GET_ITEM(v, oparg); |
| 1472 | Py_INCREF(w); |
| 1473 | PUSH(w); |
| 1474 | } |
| 1475 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1476 | } |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1477 | else if (PyList_Check(v)) { |
| 1478 | if (PyList_Size(v) != oparg) { |
| 1479 | PyErr_SetString(PyExc_ValueError, |
| 1480 | "unpack list of wrong size"); |
| 1481 | why = WHY_EXCEPTION; |
| 1482 | } |
| 1483 | else { |
| 1484 | for (; --oparg >= 0; ) { |
| 1485 | w = PyList_GET_ITEM(v, oparg); |
| 1486 | Py_INCREF(w); |
| 1487 | PUSH(w); |
| 1488 | } |
| 1489 | } |
| 1490 | } |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 1491 | else if (unpack_iterable(v, oparg, |
| 1492 | stack_pointer + oparg)) |
| 1493 | stack_pointer += oparg; |
| 1494 | else |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1495 | why = WHY_EXCEPTION; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1496 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1497 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1498 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1499 | case STORE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1500 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1501 | v = POP(); |
| 1502 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1503 | err = PyObject_SetAttr(v, w, u); /* v.w = u */ |
| 1504 | Py_DECREF(v); |
| 1505 | Py_DECREF(u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1506 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1507 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1508 | case DELETE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1509 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1510 | v = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1511 | err = PyObject_SetAttr(v, w, (PyObject *)NULL); |
| 1512 | /* del v.w */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1513 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1514 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1515 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1516 | case STORE_GLOBAL: |
| 1517 | w = GETNAMEV(oparg); |
| 1518 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1519 | err = PyDict_SetItem(f->f_globals, w, v); |
| 1520 | Py_DECREF(v); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1521 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1522 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1523 | case DELETE_GLOBAL: |
| 1524 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1525 | if ((err = PyDict_DelItem(f->f_globals, w)) != 0) |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1526 | format_exc_check_arg( |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1527 | PyExc_NameError, GLOBAL_NAME_ERROR_MSG, w); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1528 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1529 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1530 | case LOAD_CONST: |
| 1531 | x = GETCONST(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1532 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1533 | PUSH(x); |
| 1534 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1535 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1536 | case LOAD_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1537 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1538 | if ((x = f->f_locals) == NULL) { |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1539 | PyErr_Format(PyExc_SystemError, |
| 1540 | "no locals when loading %s", |
Jeremy Hylton | 483638c | 2001-02-01 20:20:45 +0000 | [diff] [blame] | 1541 | PyObject_REPR(w)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1542 | break; |
| 1543 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1544 | x = PyDict_GetItem(x, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1545 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1546 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1547 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1548 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1549 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1550 | format_exc_check_arg( |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1551 | PyExc_NameError, |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1552 | NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1553 | break; |
| 1554 | } |
| 1555 | } |
| 1556 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1557 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1558 | PUSH(x); |
| 1559 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1560 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1561 | case LOAD_GLOBAL: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1562 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1563 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1564 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1565 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1566 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1567 | format_exc_check_arg( |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1568 | PyExc_NameError, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1569 | GLOBAL_NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1570 | break; |
| 1571 | } |
| 1572 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1573 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1574 | PUSH(x); |
| 1575 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1576 | |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1577 | case LOAD_FAST: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1578 | x = GETLOCAL(oparg); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1579 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1580 | format_exc_check_arg( |
| 1581 | PyExc_UnboundLocalError, |
| 1582 | UNBOUNDLOCAL_ERROR_MSG, |
| 1583 | PyTuple_GetItem(co->co_varnames, oparg) |
| 1584 | ); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1585 | break; |
| 1586 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1587 | Py_INCREF(x); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1588 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1589 | if (x != NULL) continue; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1590 | break; |
| 1591 | |
| 1592 | case STORE_FAST: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1593 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1594 | SETLOCAL(oparg, v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1595 | continue; |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1596 | |
| 1597 | case DELETE_FAST: |
Guido van Rossum | 2e4c899 | 1998-05-12 20:27:36 +0000 | [diff] [blame] | 1598 | x = GETLOCAL(oparg); |
| 1599 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1600 | format_exc_check_arg( |
| 1601 | PyExc_UnboundLocalError, |
| 1602 | UNBOUNDLOCAL_ERROR_MSG, |
| 1603 | PyTuple_GetItem(co->co_varnames, oparg) |
| 1604 | ); |
Guido van Rossum | 2e4c899 | 1998-05-12 20:27:36 +0000 | [diff] [blame] | 1605 | break; |
| 1606 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1607 | SETLOCAL(oparg, NULL); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1608 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1609 | |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1610 | case LOAD_CLOSURE: |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1611 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1612 | Py_INCREF(x); |
| 1613 | PUSH(x); |
| 1614 | break; |
| 1615 | |
| 1616 | case LOAD_DEREF: |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1617 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1618 | w = PyCell_Get(x); |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1619 | if (w == NULL) { |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 1620 | if (oparg < f->f_ncells) { |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1621 | v = PyTuple_GetItem(co->co_cellvars, |
| 1622 | oparg); |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 1623 | format_exc_check_arg( |
| 1624 | PyExc_UnboundLocalError, |
| 1625 | UNBOUNDLOCAL_ERROR_MSG, |
| 1626 | v); |
| 1627 | } else { |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1628 | v = PyTuple_GetItem( |
| 1629 | co->co_freevars, |
| 1630 | oparg - f->f_ncells); |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 1631 | format_exc_check_arg( |
| 1632 | PyExc_NameError, |
| 1633 | UNBOUNDFREE_ERROR_MSG, |
| 1634 | v); |
| 1635 | } |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1636 | err = -1; |
| 1637 | break; |
| 1638 | } |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1639 | PUSH(w); |
| 1640 | break; |
| 1641 | |
| 1642 | case STORE_DEREF: |
| 1643 | w = POP(); |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1644 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1645 | PyCell_Set(x, w); |
Jeremy Hylton | 30c9f39 | 2001-03-13 01:58:22 +0000 | [diff] [blame] | 1646 | Py_DECREF(w); |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1647 | continue; |
| 1648 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1649 | case BUILD_TUPLE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1650 | x = PyTuple_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1651 | if (x != NULL) { |
| 1652 | for (; --oparg >= 0;) { |
| 1653 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1654 | PyTuple_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1655 | } |
| 1656 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1657 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1658 | } |
| 1659 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1660 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1661 | case BUILD_LIST: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1662 | x = PyList_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1663 | if (x != NULL) { |
| 1664 | for (; --oparg >= 0;) { |
| 1665 | w = POP(); |
Guido van Rossum | 5053efc | 1998-08-04 15:27:50 +0000 | [diff] [blame] | 1666 | PyList_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1667 | } |
| 1668 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1669 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1670 | } |
| 1671 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1672 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1673 | case BUILD_MAP: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1674 | x = PyDict_New(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1675 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1676 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1677 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1678 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1679 | case LOAD_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1680 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1681 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1682 | x = PyObject_GetAttr(v, w); |
| 1683 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1684 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1685 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1686 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1687 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1688 | case COMPARE_OP: |
| 1689 | w = POP(); |
| 1690 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1691 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1692 | /* INLINE: cmp(int, int) */ |
| 1693 | register long a, b; |
| 1694 | register int res; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 1695 | a = PyInt_AS_LONG(v); |
| 1696 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1697 | switch (oparg) { |
| 1698 | case LT: res = a < b; break; |
| 1699 | case LE: res = a <= b; break; |
| 1700 | case EQ: res = a == b; break; |
| 1701 | case NE: res = a != b; break; |
| 1702 | case GT: res = a > b; break; |
| 1703 | case GE: res = a >= b; break; |
| 1704 | case IS: res = v == w; break; |
| 1705 | case IS_NOT: res = v != w; break; |
| 1706 | default: goto slow_compare; |
| 1707 | } |
| 1708 | x = res ? Py_True : Py_False; |
| 1709 | Py_INCREF(x); |
| 1710 | } |
| 1711 | else { |
| 1712 | slow_compare: |
| 1713 | x = cmp_outcome(oparg, v, w); |
| 1714 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1715 | Py_DECREF(v); |
| 1716 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1717 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1718 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1719 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1720 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1721 | case IMPORT_NAME: |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1722 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1723 | x = PyDict_GetItemString(f->f_builtins, "__import__"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1724 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1725 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1726 | "__import__ not found"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1727 | break; |
| 1728 | } |
Thomas Wouters | dd13e4f | 2000-08-27 20:31:27 +0000 | [diff] [blame] | 1729 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1730 | w = Py_BuildValue("(OOOO)", |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1731 | w, |
| 1732 | f->f_globals, |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1733 | f->f_locals == NULL ? |
| 1734 | Py_None : f->f_locals, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1735 | u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1736 | Py_DECREF(u); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1737 | if (w == NULL) { |
| 1738 | x = NULL; |
| 1739 | break; |
| 1740 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1741 | x = PyEval_CallObject(x, w); |
| 1742 | Py_DECREF(w); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1743 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1744 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1745 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1746 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1747 | case IMPORT_STAR: |
| 1748 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1749 | PyFrame_FastToLocals(f); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1750 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1751 | PyErr_SetString(PyExc_SystemError, |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1752 | "no locals found during 'import *'"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1753 | break; |
| 1754 | } |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1755 | err = import_all_from(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1756 | PyFrame_LocalsToFast(f, 0); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1757 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1758 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1759 | break; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1760 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1761 | case IMPORT_FROM: |
| 1762 | w = GETNAMEV(oparg); |
| 1763 | v = TOP(); |
| 1764 | x = import_from(v, w); |
| 1765 | PUSH(x); |
| 1766 | if (x != NULL) continue; |
| 1767 | break; |
| 1768 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1769 | case JUMP_FORWARD: |
| 1770 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1771 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1772 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1773 | case JUMP_IF_FALSE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1774 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1775 | if (err > 0) |
| 1776 | err = 0; |
| 1777 | else if (err == 0) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1778 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1779 | else |
| 1780 | break; |
| 1781 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1782 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1783 | case JUMP_IF_TRUE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1784 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1785 | if (err > 0) { |
| 1786 | err = 0; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1787 | JUMPBY(oparg); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1788 | } |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1789 | else if (err == 0) |
| 1790 | ; |
| 1791 | else |
| 1792 | break; |
| 1793 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1794 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1795 | case JUMP_ABSOLUTE: |
| 1796 | JUMPTO(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1797 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1798 | |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 1799 | case GET_ITER: |
| 1800 | /* before: [obj]; after [getiter(obj)] */ |
| 1801 | v = POP(); |
| 1802 | x = PyObject_GetIter(v); |
| 1803 | Py_DECREF(v); |
| 1804 | if (x != NULL) { |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 1805 | PUSH(x); |
| 1806 | continue; |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 1807 | } |
| 1808 | break; |
| 1809 | |
| 1810 | case FOR_ITER: |
| 1811 | /* before: [iter]; after: [iter, iter()] *or* [] */ |
| 1812 | v = TOP(); |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 1813 | x = PyIter_Next(v); |
| 1814 | if (x != NULL) { |
| 1815 | PUSH(x); |
| 1816 | continue; |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 1817 | } |
Tim Peters | f4848da | 2001-05-05 00:14:56 +0000 | [diff] [blame] | 1818 | if (!PyErr_Occurred()) { |
| 1819 | /* iterator ended normally */ |
| 1820 | x = v = POP(); |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 1821 | Py_DECREF(v); |
| 1822 | JUMPBY(oparg); |
| 1823 | continue; |
| 1824 | } |
| 1825 | break; |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 1826 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1827 | case FOR_LOOP: |
| 1828 | /* for v in s: ... |
| 1829 | On entry: stack contains s, i. |
| 1830 | On exit: stack contains s, i+1, s[i]; |
| 1831 | but if loop exhausted: |
| 1832 | s, i are popped, and we jump */ |
| 1833 | w = POP(); /* Loop index */ |
| 1834 | v = POP(); /* Sequence object */ |
| 1835 | u = loop_subscript(v, w); |
| 1836 | if (u != NULL) { |
| 1837 | PUSH(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1838 | x = PyInt_FromLong(PyInt_AsLong(w)+1); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1839 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1840 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1841 | PUSH(u); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1842 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1843 | } |
| 1844 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1845 | Py_DECREF(v); |
| 1846 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1847 | /* A NULL can mean "s exhausted" |
| 1848 | but also an error: */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1849 | if (PyErr_Occurred()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1850 | why = WHY_EXCEPTION; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1851 | else { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1852 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1853 | continue; |
| 1854 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1855 | } |
| 1856 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1857 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1858 | case SETUP_LOOP: |
| 1859 | case SETUP_EXCEPT: |
| 1860 | case SETUP_FINALLY: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1861 | PyFrame_BlockSetup(f, opcode, INSTR_OFFSET() + oparg, |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 1862 | STACK_LEVEL()); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1863 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1864 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1865 | case SET_LINENO: |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1866 | #ifdef LLTRACE |
| 1867 | if (lltrace) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1868 | printf("--- %s:%d \n", filename, oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1869 | #endif |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1870 | f->f_lineno = oparg; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1871 | if (f->f_trace == NULL) |
| 1872 | continue; |
| 1873 | /* Trace each line of code reached */ |
| 1874 | f->f_lasti = INSTR_OFFSET(); |
| 1875 | err = call_trace(&f->f_trace, &f->f_trace, |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 1876 | f, str_line, Py_None); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1877 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1878 | |
| 1879 | case CALL_FUNCTION: |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1880 | { |
| 1881 | int na = oparg & 0xff; |
| 1882 | int nk = (oparg>>8) & 0xff; |
| 1883 | int n = na + 2 * nk; |
| 1884 | PyObject **pfunc = stack_pointer - n - 1; |
| 1885 | PyObject *func = *pfunc; |
| 1886 | f->f_lasti = INSTR_OFFSET() - 3; /* For tracing */ |
| 1887 | |
| 1888 | /* Always dispatch PyCFunction first, because |
| 1889 | these are presumed to be the most frequent |
| 1890 | callable object. |
| 1891 | */ |
| 1892 | if (PyCFunction_Check(func)) { |
Jeremy Hylton | da20fce | 2001-05-18 20:53:14 +0000 | [diff] [blame] | 1893 | int flags = PyCFunction_GET_FLAGS(func); |
Jeremy Hylton | 4c9dace | 2001-05-29 16:23:26 +0000 | [diff] [blame] | 1894 | if (flags > 1 || nk != 0) |
| 1895 | x = do_call(func, &stack_pointer, |
| 1896 | na, nk); |
| 1897 | else if (flags == METH_VARARGS) { |
Jeremy Hylton | da20fce | 2001-05-18 20:53:14 +0000 | [diff] [blame] | 1898 | PyObject *callargs; |
| 1899 | callargs = load_args(&stack_pointer, na); |
| 1900 | x = call_cfunction(func, callargs, NULL); |
| 1901 | Py_XDECREF(callargs); |
Jeremy Hylton | 4c9dace | 2001-05-29 16:23:26 +0000 | [diff] [blame] | 1902 | } else if (flags == 0) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1903 | x = fast_cfunction(func, |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1904 | &stack_pointer, na); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1905 | } else { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1906 | if (PyMethod_Check(func) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1907 | && PyMethod_GET_SELF(func) != NULL) { |
| 1908 | /* optimize access to bound methods */ |
| 1909 | PyObject *self = PyMethod_GET_SELF(func); |
| 1910 | Py_INCREF(self); |
| 1911 | func = PyMethod_GET_FUNCTION(func); |
| 1912 | Py_INCREF(func); |
| 1913 | Py_DECREF(*pfunc); |
| 1914 | *pfunc = self; |
| 1915 | na++; |
| 1916 | n++; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1917 | } else |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1918 | Py_INCREF(func); |
| 1919 | if (PyFunction_Check(func)) { |
| 1920 | x = fast_function(func, &stack_pointer, |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1921 | n, na, nk); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1922 | } else { |
| 1923 | x = do_call(func, &stack_pointer, |
| 1924 | na, nk); |
| 1925 | } |
| 1926 | Py_DECREF(func); |
| 1927 | } |
| 1928 | |
| 1929 | while (stack_pointer > pfunc) { |
| 1930 | w = POP(); |
| 1931 | Py_DECREF(w); |
| 1932 | } |
| 1933 | PUSH(x); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1934 | if (x != NULL) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1935 | continue; |
| 1936 | break; |
| 1937 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1938 | |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1939 | case CALL_FUNCTION_VAR: |
| 1940 | case CALL_FUNCTION_KW: |
| 1941 | case CALL_FUNCTION_VAR_KW: |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1942 | { |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1943 | int na = oparg & 0xff; |
| 1944 | int nk = (oparg>>8) & 0xff; |
| 1945 | int flags = (opcode - CALL_FUNCTION) & 3; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1946 | int n = na + 2 * nk; |
| 1947 | PyObject **pfunc, *func; |
| 1948 | if (flags & CALL_FLAG_VAR) |
| 1949 | n++; |
| 1950 | if (flags & CALL_FLAG_KW) |
| 1951 | n++; |
| 1952 | pfunc = stack_pointer - n - 1; |
| 1953 | func = *pfunc; |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1954 | f->f_lasti = INSTR_OFFSET() - 3; /* For tracing */ |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1955 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1956 | if (PyMethod_Check(func) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1957 | && PyMethod_GET_SELF(func) != NULL) { |
| 1958 | PyObject *self = PyMethod_GET_SELF(func); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1959 | Py_INCREF(self); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1960 | func = PyMethod_GET_FUNCTION(func); |
| 1961 | Py_INCREF(func); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1962 | Py_DECREF(*pfunc); |
| 1963 | *pfunc = self; |
| 1964 | na++; |
| 1965 | n++; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1966 | } else |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1967 | Py_INCREF(func); |
| 1968 | x = ext_do_call(func, &stack_pointer, flags, na, nk); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1969 | Py_DECREF(func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1970 | |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1971 | while (stack_pointer > pfunc) { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1972 | w = POP(); |
| 1973 | Py_DECREF(w); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1974 | } |
| 1975 | PUSH(x); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1976 | if (x != NULL) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1977 | continue; |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1978 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1979 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1980 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1981 | case MAKE_FUNCTION: |
| 1982 | v = POP(); /* code object */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1983 | x = PyFunction_New(v, f->f_globals); |
| 1984 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1985 | /* XXX Maybe this should be a separate opcode? */ |
| 1986 | if (x != NULL && oparg > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1987 | v = PyTuple_New(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1988 | if (v == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1989 | Py_DECREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1990 | x = NULL; |
| 1991 | break; |
| 1992 | } |
| 1993 | while (--oparg >= 0) { |
| 1994 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1995 | PyTuple_SET_ITEM(v, oparg, w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1996 | } |
| 1997 | err = PyFunction_SetDefaults(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1998 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1999 | } |
| 2000 | PUSH(x); |
| 2001 | break; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2002 | |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 2003 | case MAKE_CLOSURE: |
| 2004 | { |
| 2005 | int nfree; |
| 2006 | v = POP(); /* code object */ |
| 2007 | x = PyFunction_New(v, f->f_globals); |
| 2008 | nfree = PyTuple_GET_SIZE(((PyCodeObject *)v)->co_freevars); |
| 2009 | Py_DECREF(v); |
| 2010 | /* XXX Maybe this should be a separate opcode? */ |
| 2011 | if (x != NULL && nfree > 0) { |
| 2012 | v = PyTuple_New(nfree); |
| 2013 | if (v == NULL) { |
| 2014 | Py_DECREF(x); |
| 2015 | x = NULL; |
| 2016 | break; |
| 2017 | } |
| 2018 | while (--nfree >= 0) { |
| 2019 | w = POP(); |
| 2020 | PyTuple_SET_ITEM(v, nfree, w); |
| 2021 | } |
| 2022 | err = PyFunction_SetClosure(x, v); |
| 2023 | Py_DECREF(v); |
| 2024 | } |
| 2025 | if (x != NULL && oparg > 0) { |
| 2026 | v = PyTuple_New(oparg); |
| 2027 | if (v == NULL) { |
| 2028 | Py_DECREF(x); |
| 2029 | x = NULL; |
| 2030 | break; |
| 2031 | } |
| 2032 | while (--oparg >= 0) { |
| 2033 | w = POP(); |
| 2034 | PyTuple_SET_ITEM(v, oparg, w); |
| 2035 | } |
| 2036 | err = PyFunction_SetDefaults(x, v); |
| 2037 | Py_DECREF(v); |
| 2038 | } |
| 2039 | PUSH(x); |
| 2040 | break; |
| 2041 | } |
| 2042 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2043 | case BUILD_SLICE: |
| 2044 | if (oparg == 3) |
| 2045 | w = POP(); |
| 2046 | else |
| 2047 | w = NULL; |
| 2048 | v = POP(); |
| 2049 | u = POP(); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 2050 | x = PySlice_New(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2051 | Py_DECREF(u); |
| 2052 | Py_DECREF(v); |
| 2053 | Py_XDECREF(w); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2054 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 2055 | if (x != NULL) continue; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2056 | break; |
| 2057 | |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 2058 | case EXTENDED_ARG: |
| 2059 | opcode = NEXTOP(); |
| 2060 | oparg = oparg<<16 | NEXTARG(); |
| 2061 | goto dispatch_opcode; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2062 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2063 | default: |
| 2064 | fprintf(stderr, |
| 2065 | "XXX lineno: %d, opcode: %d\n", |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2066 | f->f_lineno, opcode); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2067 | PyErr_SetString(PyExc_SystemError, "unknown opcode"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2068 | why = WHY_EXCEPTION; |
| 2069 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2070 | |
| 2071 | #ifdef CASE_TOO_BIG |
| 2072 | } |
| 2073 | #endif |
| 2074 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2075 | } /* switch */ |
| 2076 | |
| 2077 | on_error: |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2078 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2079 | /* Quickly continue if no error occurred */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2080 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2081 | if (why == WHY_NOT) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2082 | if (err == 0 && x != NULL) { |
| 2083 | #ifdef CHECKEXC |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2084 | /* This check is expensive! */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2085 | if (PyErr_Occurred()) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2086 | fprintf(stderr, |
| 2087 | "XXX undetected error\n"); |
| 2088 | else |
| 2089 | #endif |
| 2090 | continue; /* Normal, fast path */ |
| 2091 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2092 | why = WHY_EXCEPTION; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2093 | x = Py_None; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2094 | err = 0; |
| 2095 | } |
| 2096 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2097 | /* Double-check exception status */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2098 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2099 | if (why == WHY_EXCEPTION || why == WHY_RERAISE) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2100 | if (!PyErr_Occurred()) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2101 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2102 | "error return without exception set"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2103 | why = WHY_EXCEPTION; |
| 2104 | } |
| 2105 | } |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2106 | #ifdef CHECKEXC |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2107 | else { |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2108 | /* This check is expensive! */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2109 | if (PyErr_Occurred()) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2110 | fprintf(stderr, |
| 2111 | "XXX undetected error (why=%d)\n", |
| 2112 | why); |
| 2113 | why = WHY_EXCEPTION; |
| 2114 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2115 | } |
| 2116 | #endif |
| 2117 | |
| 2118 | /* Log traceback info if this is a real exception */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2119 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2120 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2121 | f->f_lasti = INSTR_OFFSET() - 1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2122 | if (HAS_ARG(opcode)) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2123 | f->f_lasti -= 2; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2124 | PyTraceBack_Here(f); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2125 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2126 | if (f->f_trace) |
| 2127 | call_exc_trace(&f->f_trace, &f->f_trace, f); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2128 | if (tstate->sys_profilefunc) |
| 2129 | call_exc_trace(&tstate->sys_profilefunc, |
| 2130 | (PyObject**)0, f); |
Guido van Rossum | 014518f | 1998-11-23 21:09:51 +0000 | [diff] [blame] | 2131 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2132 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2133 | /* For the rest, treat WHY_RERAISE as WHY_EXCEPTION */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2134 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2135 | if (why == WHY_RERAISE) |
| 2136 | why = WHY_EXCEPTION; |
| 2137 | |
| 2138 | /* Unwind stacks if a (pseudo) exception occurred */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2139 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2140 | while (why != WHY_NOT && why != WHY_YIELD && f->f_iblock > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2141 | PyTryBlock *b = PyFrame_BlockPop(f); |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2142 | |
| 2143 | if (b->b_type == SETUP_LOOP && why == WHY_CONTINUE) { |
| 2144 | /* For a continue inside a try block, |
| 2145 | don't pop the block for the loop. */ |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 2146 | PyFrame_BlockSetup(f, b->b_type, b->b_level, |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2147 | b->b_handler); |
| 2148 | why = WHY_NOT; |
| 2149 | JUMPTO(PyInt_AS_LONG(retval)); |
| 2150 | Py_DECREF(retval); |
| 2151 | break; |
| 2152 | } |
| 2153 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2154 | while (STACK_LEVEL() > b->b_level) { |
| 2155 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2156 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2157 | } |
| 2158 | if (b->b_type == SETUP_LOOP && why == WHY_BREAK) { |
| 2159 | why = WHY_NOT; |
| 2160 | JUMPTO(b->b_handler); |
| 2161 | break; |
| 2162 | } |
| 2163 | if (b->b_type == SETUP_FINALLY || |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2164 | (b->b_type == SETUP_EXCEPT && |
| 2165 | why == WHY_EXCEPTION)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2166 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2167 | PyObject *exc, *val, *tb; |
| 2168 | PyErr_Fetch(&exc, &val, &tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2169 | if (val == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2170 | val = Py_None; |
| 2171 | Py_INCREF(val); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2172 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2173 | /* Make the raw exception data |
| 2174 | available to the handler, |
| 2175 | so a program can emulate the |
| 2176 | Python main loop. Don't do |
| 2177 | this for 'finally'. */ |
| 2178 | if (b->b_type == SETUP_EXCEPT) { |
Barry Warsaw | eaedc7c | 1997-08-28 22:36:40 +0000 | [diff] [blame] | 2179 | PyErr_NormalizeException( |
| 2180 | &exc, &val, &tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2181 | set_exc_info(tstate, |
| 2182 | exc, val, tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2183 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2184 | PUSH(tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2185 | PUSH(val); |
| 2186 | PUSH(exc); |
| 2187 | } |
| 2188 | else { |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2189 | if (why == WHY_RETURN || |
| 2190 | why == CONTINUE_LOOP) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2191 | PUSH(retval); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2192 | v = PyInt_FromLong((long)why); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2193 | PUSH(v); |
| 2194 | } |
| 2195 | why = WHY_NOT; |
| 2196 | JUMPTO(b->b_handler); |
| 2197 | break; |
| 2198 | } |
| 2199 | } /* unwind stack */ |
| 2200 | |
| 2201 | /* End the loop if we still have an error (or return) */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2202 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2203 | if (why != WHY_NOT) |
| 2204 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2205 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2206 | } /* main loop */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2207 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2208 | if (why != WHY_RETURN && why != WHY_YIELD) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2209 | retval = NULL; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2210 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2211 | if (f->f_trace) { |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2212 | if (why == WHY_RETURN || why == WHY_YIELD) { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2213 | if (call_trace(&f->f_trace, &f->f_trace, f, |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2214 | str_return, retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2215 | Py_XDECREF(retval); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2216 | retval = NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2217 | why = WHY_EXCEPTION; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2218 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2219 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2220 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2221 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2222 | if (tstate->sys_profilefunc && |
| 2223 | (why == WHY_RETURN || why == WHY_YIELD)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2224 | if (call_trace(&tstate->sys_profilefunc, (PyObject**)0, |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2225 | f, str_return, retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2226 | Py_XDECREF(retval); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2227 | retval = NULL; |
| 2228 | why = WHY_EXCEPTION; |
| 2229 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2230 | } |
Guido van Rossum | a424013 | 1997-01-21 21:18:36 +0000 | [diff] [blame] | 2231 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2232 | reset_exc_info(tstate); |
| 2233 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2234 | /* pop frame */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2235 | --tstate->recursion_depth; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2236 | tstate->frame = f->f_back; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2237 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2238 | return retval; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2239 | } |
| 2240 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2241 | static PyObject * |
| 2242 | eval_code2(PyCodeObject *co, PyObject *globals, PyObject *locals, |
| 2243 | PyObject **args, int argcount, PyObject **kws, int kwcount, |
| 2244 | PyObject **defs, int defcount, PyObject *closure) |
| 2245 | { |
| 2246 | register PyFrameObject *f; |
| 2247 | register PyObject *retval = NULL; |
| 2248 | register PyObject **fastlocals, **freevars; |
| 2249 | PyThreadState *tstate = PyThreadState_GET(); |
| 2250 | PyObject *x, *u; |
| 2251 | |
| 2252 | if (globals == NULL) { |
| 2253 | PyErr_SetString(PyExc_SystemError, "eval_code2: NULL globals"); |
| 2254 | return NULL; |
| 2255 | } |
| 2256 | |
| 2257 | f = PyFrame_New(tstate, /*back*/ |
| 2258 | co, /*code*/ |
| 2259 | globals, locals); |
| 2260 | if (f == NULL) |
| 2261 | return NULL; |
| 2262 | |
| 2263 | fastlocals = f->f_localsplus; |
| 2264 | freevars = f->f_localsplus + f->f_nlocals; |
| 2265 | |
| 2266 | if (co->co_argcount > 0 || |
| 2267 | co->co_flags & (CO_VARARGS | CO_VARKEYWORDS)) { |
| 2268 | int i; |
| 2269 | int n = argcount; |
| 2270 | PyObject *kwdict = NULL; |
| 2271 | if (co->co_flags & CO_VARKEYWORDS) { |
| 2272 | kwdict = PyDict_New(); |
| 2273 | if (kwdict == NULL) |
| 2274 | goto fail; |
| 2275 | i = co->co_argcount; |
| 2276 | if (co->co_flags & CO_VARARGS) |
| 2277 | i++; |
| 2278 | SETLOCAL(i, kwdict); |
| 2279 | } |
| 2280 | if (argcount > co->co_argcount) { |
| 2281 | if (!(co->co_flags & CO_VARARGS)) { |
| 2282 | PyErr_Format(PyExc_TypeError, |
| 2283 | "%.200s() takes %s %d " |
| 2284 | "%sargument%s (%d given)", |
| 2285 | PyString_AsString(co->co_name), |
| 2286 | defcount ? "at most" : "exactly", |
| 2287 | co->co_argcount, |
| 2288 | kwcount ? "non-keyword " : "", |
| 2289 | co->co_argcount == 1 ? "" : "s", |
| 2290 | argcount); |
| 2291 | goto fail; |
| 2292 | } |
| 2293 | n = co->co_argcount; |
| 2294 | } |
| 2295 | for (i = 0; i < n; i++) { |
| 2296 | x = args[i]; |
| 2297 | Py_INCREF(x); |
| 2298 | SETLOCAL(i, x); |
| 2299 | } |
| 2300 | if (co->co_flags & CO_VARARGS) { |
| 2301 | u = PyTuple_New(argcount - n); |
| 2302 | if (u == NULL) |
| 2303 | goto fail; |
| 2304 | SETLOCAL(co->co_argcount, u); |
| 2305 | for (i = n; i < argcount; i++) { |
| 2306 | x = args[i]; |
| 2307 | Py_INCREF(x); |
| 2308 | PyTuple_SET_ITEM(u, i-n, x); |
| 2309 | } |
| 2310 | } |
| 2311 | for (i = 0; i < kwcount; i++) { |
| 2312 | PyObject *keyword = kws[2*i]; |
| 2313 | PyObject *value = kws[2*i + 1]; |
| 2314 | int j; |
| 2315 | if (keyword == NULL || !PyString_Check(keyword)) { |
| 2316 | PyErr_Format(PyExc_TypeError, |
| 2317 | "%.200s() keywords must be strings", |
| 2318 | PyString_AsString(co->co_name)); |
| 2319 | goto fail; |
| 2320 | } |
| 2321 | /* XXX slow -- speed up using dictionary? */ |
| 2322 | for (j = 0; j < co->co_argcount; j++) { |
| 2323 | PyObject *nm = PyTuple_GET_ITEM( |
| 2324 | co->co_varnames, j); |
| 2325 | int cmp = PyObject_RichCompareBool( |
| 2326 | keyword, nm, Py_EQ); |
| 2327 | if (cmp > 0) |
| 2328 | break; |
| 2329 | else if (cmp < 0) |
| 2330 | goto fail; |
| 2331 | } |
| 2332 | /* Check errors from Compare */ |
| 2333 | if (PyErr_Occurred()) |
| 2334 | goto fail; |
| 2335 | if (j >= co->co_argcount) { |
| 2336 | if (kwdict == NULL) { |
| 2337 | PyErr_Format(PyExc_TypeError, |
| 2338 | "%.200s() got an unexpected " |
| 2339 | "keyword argument '%.400s'", |
| 2340 | PyString_AsString(co->co_name), |
| 2341 | PyString_AsString(keyword)); |
| 2342 | goto fail; |
| 2343 | } |
| 2344 | PyDict_SetItem(kwdict, keyword, value); |
| 2345 | } |
| 2346 | else { |
| 2347 | if (GETLOCAL(j) != NULL) { |
| 2348 | PyErr_Format(PyExc_TypeError, |
| 2349 | "%.200s() got multiple " |
| 2350 | "values for keyword " |
| 2351 | "argument '%.400s'", |
| 2352 | PyString_AsString(co->co_name), |
| 2353 | PyString_AsString(keyword)); |
| 2354 | goto fail; |
| 2355 | } |
| 2356 | Py_INCREF(value); |
| 2357 | SETLOCAL(j, value); |
| 2358 | } |
| 2359 | } |
| 2360 | if (argcount < co->co_argcount) { |
| 2361 | int m = co->co_argcount - defcount; |
| 2362 | for (i = argcount; i < m; i++) { |
| 2363 | if (GETLOCAL(i) == NULL) { |
| 2364 | PyErr_Format(PyExc_TypeError, |
| 2365 | "%.200s() takes %s %d " |
| 2366 | "%sargument%s (%d given)", |
| 2367 | PyString_AsString(co->co_name), |
| 2368 | ((co->co_flags & CO_VARARGS) || |
| 2369 | defcount) ? "at least" |
| 2370 | : "exactly", |
| 2371 | m, kwcount ? "non-keyword " : "", |
| 2372 | m == 1 ? "" : "s", i); |
| 2373 | goto fail; |
| 2374 | } |
| 2375 | } |
| 2376 | if (n > m) |
| 2377 | i = n - m; |
| 2378 | else |
| 2379 | i = 0; |
| 2380 | for (; i < defcount; i++) { |
| 2381 | if (GETLOCAL(m+i) == NULL) { |
| 2382 | PyObject *def = defs[i]; |
| 2383 | Py_INCREF(def); |
| 2384 | SETLOCAL(m+i, def); |
| 2385 | } |
| 2386 | } |
| 2387 | } |
| 2388 | } |
| 2389 | else { |
| 2390 | if (argcount > 0 || kwcount > 0) { |
| 2391 | PyErr_Format(PyExc_TypeError, |
| 2392 | "%.200s() takes no arguments (%d given)", |
| 2393 | PyString_AsString(co->co_name), |
| 2394 | argcount + kwcount); |
| 2395 | goto fail; |
| 2396 | } |
| 2397 | } |
| 2398 | /* Allocate and initialize storage for cell vars, and copy free |
| 2399 | vars into frame. This isn't too efficient right now. */ |
| 2400 | if (f->f_ncells) { |
| 2401 | int i = 0, j = 0, nargs, found; |
| 2402 | char *cellname, *argname; |
| 2403 | PyObject *c; |
| 2404 | |
| 2405 | nargs = co->co_argcount; |
| 2406 | if (co->co_flags & CO_VARARGS) |
| 2407 | nargs++; |
| 2408 | if (co->co_flags & CO_VARKEYWORDS) |
| 2409 | nargs++; |
| 2410 | |
| 2411 | /* Check for cells that shadow args */ |
| 2412 | for (i = 0; i < f->f_ncells && j < nargs; ++i) { |
| 2413 | cellname = PyString_AS_STRING( |
| 2414 | PyTuple_GET_ITEM(co->co_cellvars, i)); |
| 2415 | found = 0; |
| 2416 | while (j < nargs) { |
| 2417 | argname = PyString_AS_STRING( |
| 2418 | PyTuple_GET_ITEM(co->co_varnames, j)); |
| 2419 | if (strcmp(cellname, argname) == 0) { |
| 2420 | c = PyCell_New(GETLOCAL(j)); |
| 2421 | if (c == NULL) |
| 2422 | goto fail; |
| 2423 | GETLOCAL(f->f_nlocals + i) = c; |
| 2424 | found = 1; |
| 2425 | break; |
| 2426 | } |
| 2427 | j++; |
| 2428 | } |
| 2429 | if (found == 0) { |
| 2430 | c = PyCell_New(NULL); |
| 2431 | if (c == NULL) |
| 2432 | goto fail; |
| 2433 | SETLOCAL(f->f_nlocals + i, c); |
| 2434 | } |
| 2435 | } |
| 2436 | /* Initialize any that are left */ |
| 2437 | while (i < f->f_ncells) { |
| 2438 | c = PyCell_New(NULL); |
| 2439 | if (c == NULL) |
| 2440 | goto fail; |
| 2441 | SETLOCAL(f->f_nlocals + i, c); |
| 2442 | i++; |
| 2443 | } |
| 2444 | } |
| 2445 | if (f->f_nfreevars) { |
| 2446 | int i; |
| 2447 | for (i = 0; i < f->f_nfreevars; ++i) { |
| 2448 | PyObject *o = PyTuple_GET_ITEM(closure, i); |
| 2449 | Py_INCREF(o); |
| 2450 | freevars[f->f_ncells + i] = o; |
| 2451 | } |
| 2452 | } |
| 2453 | |
| 2454 | if (tstate->sys_tracefunc != NULL) { |
| 2455 | /* tstate->sys_tracefunc, if defined, is a function that |
| 2456 | will be called on *every* entry to a code block. |
| 2457 | Its return value, if not None, is a function that |
| 2458 | will be called at the start of each executed line |
| 2459 | of code. (Actually, the function must return |
| 2460 | itself in order to continue tracing.) |
| 2461 | The trace functions are called with three arguments: |
| 2462 | a pointer to the current frame, a string indicating |
| 2463 | why the function is called, and an argument which |
| 2464 | depends on the situation. The global trace function |
| 2465 | (sys.trace) is also called whenever an exception |
| 2466 | is detected. */ |
| 2467 | if (call_trace(&tstate->sys_tracefunc, |
| 2468 | &f->f_trace, f, str_call, |
| 2469 | Py_None/*XXX how to compute arguments now?*/)) { |
| 2470 | /* Trace function raised an error */ |
| 2471 | goto fail; |
| 2472 | } |
| 2473 | } |
| 2474 | |
| 2475 | if (tstate->sys_profilefunc != NULL) { |
| 2476 | /* Similar for sys_profilefunc, except it needn't return |
| 2477 | itself and isn't called for "line" events */ |
| 2478 | if (call_trace(&tstate->sys_profilefunc, |
| 2479 | (PyObject**)0, f, str_call, |
| 2480 | Py_None/*XXX*/)) { |
| 2481 | goto fail; |
| 2482 | } |
| 2483 | } |
| 2484 | |
| 2485 | if (co->co_flags & CO_GENERATOR) { |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 2486 | /* Don't need to keep the reference to f_back, it will be set |
| 2487 | * when the generator is resumed. */ |
| 2488 | Py_DECREF(f->f_back); |
| 2489 | f->f_back = NULL; |
| 2490 | |
| 2491 | /* Create a new generator that owns the ready to run frame |
| 2492 | * and return that as the value. */ |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2493 | return gen_new(f); |
| 2494 | } |
| 2495 | |
| 2496 | retval = eval_frame(f); |
| 2497 | |
| 2498 | fail: /* Jump here from prelude on failure */ |
| 2499 | |
| 2500 | Py_DECREF(f); |
| 2501 | return retval; |
| 2502 | } |
| 2503 | |
| 2504 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2505 | static void |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2506 | set_exc_info(PyThreadState *tstate, |
| 2507 | PyObject *type, PyObject *value, PyObject *tb) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2508 | { |
| 2509 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2510 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2511 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2512 | frame = tstate->frame; |
| 2513 | if (frame->f_exc_type == NULL) { |
| 2514 | /* This frame didn't catch an exception before */ |
| 2515 | /* Save previous exception of this thread in this frame */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2516 | if (tstate->exc_type == NULL) { |
| 2517 | Py_INCREF(Py_None); |
| 2518 | tstate->exc_type = Py_None; |
| 2519 | } |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2520 | tmp_type = frame->f_exc_type; |
| 2521 | tmp_value = frame->f_exc_value; |
| 2522 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2523 | Py_XINCREF(tstate->exc_type); |
| 2524 | Py_XINCREF(tstate->exc_value); |
| 2525 | Py_XINCREF(tstate->exc_traceback); |
| 2526 | frame->f_exc_type = tstate->exc_type; |
| 2527 | frame->f_exc_value = tstate->exc_value; |
| 2528 | frame->f_exc_traceback = tstate->exc_traceback; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2529 | Py_XDECREF(tmp_type); |
| 2530 | Py_XDECREF(tmp_value); |
| 2531 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2532 | } |
| 2533 | /* Set new exception for this thread */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2534 | tmp_type = tstate->exc_type; |
| 2535 | tmp_value = tstate->exc_value; |
| 2536 | tmp_tb = tstate->exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2537 | Py_XINCREF(type); |
| 2538 | Py_XINCREF(value); |
| 2539 | Py_XINCREF(tb); |
| 2540 | tstate->exc_type = type; |
| 2541 | tstate->exc_value = value; |
| 2542 | tstate->exc_traceback = tb; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2543 | Py_XDECREF(tmp_type); |
| 2544 | Py_XDECREF(tmp_value); |
| 2545 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2546 | /* For b/w compatibility */ |
| 2547 | PySys_SetObject("exc_type", type); |
| 2548 | PySys_SetObject("exc_value", value); |
| 2549 | PySys_SetObject("exc_traceback", tb); |
| 2550 | } |
| 2551 | |
| 2552 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2553 | reset_exc_info(PyThreadState *tstate) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2554 | { |
| 2555 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2556 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2557 | frame = tstate->frame; |
| 2558 | if (frame->f_exc_type != NULL) { |
| 2559 | /* This frame caught an exception */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2560 | tmp_type = tstate->exc_type; |
| 2561 | tmp_value = tstate->exc_value; |
| 2562 | tmp_tb = tstate->exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2563 | Py_XINCREF(frame->f_exc_type); |
| 2564 | Py_XINCREF(frame->f_exc_value); |
| 2565 | Py_XINCREF(frame->f_exc_traceback); |
| 2566 | tstate->exc_type = frame->f_exc_type; |
| 2567 | tstate->exc_value = frame->f_exc_value; |
| 2568 | tstate->exc_traceback = frame->f_exc_traceback; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2569 | Py_XDECREF(tmp_type); |
| 2570 | Py_XDECREF(tmp_value); |
| 2571 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2572 | /* For b/w compatibility */ |
| 2573 | PySys_SetObject("exc_type", frame->f_exc_type); |
| 2574 | PySys_SetObject("exc_value", frame->f_exc_value); |
| 2575 | PySys_SetObject("exc_traceback", frame->f_exc_traceback); |
| 2576 | } |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2577 | tmp_type = frame->f_exc_type; |
| 2578 | tmp_value = frame->f_exc_value; |
| 2579 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2580 | frame->f_exc_type = NULL; |
| 2581 | frame->f_exc_value = NULL; |
| 2582 | frame->f_exc_traceback = NULL; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2583 | Py_XDECREF(tmp_type); |
| 2584 | Py_XDECREF(tmp_value); |
| 2585 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2586 | } |
| 2587 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2588 | /* Logic for the raise statement (too complicated for inlining). |
| 2589 | This *consumes* a reference count to each of its arguments. */ |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 2590 | static enum why_code |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2591 | do_raise(PyObject *type, PyObject *value, PyObject *tb) |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2592 | { |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 2593 | if (type == NULL) { |
| 2594 | /* Reraise */ |
| 2595 | PyThreadState *tstate = PyThreadState_Get(); |
| 2596 | type = tstate->exc_type == NULL ? Py_None : tstate->exc_type; |
| 2597 | value = tstate->exc_value; |
| 2598 | tb = tstate->exc_traceback; |
| 2599 | Py_XINCREF(type); |
| 2600 | Py_XINCREF(value); |
| 2601 | Py_XINCREF(tb); |
| 2602 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2603 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2604 | /* We support the following forms of raise: |
| 2605 | raise <class>, <classinstance> |
| 2606 | raise <class>, <argument tuple> |
| 2607 | raise <class>, None |
| 2608 | raise <class>, <argument> |
| 2609 | raise <classinstance>, None |
| 2610 | raise <string>, <object> |
| 2611 | raise <string>, None |
| 2612 | |
| 2613 | An omitted second argument is the same as None. |
| 2614 | |
| 2615 | In addition, raise <tuple>, <anything> is the same as |
| 2616 | raising the tuple's first item (and it better have one!); |
| 2617 | this rule is applied recursively. |
| 2618 | |
| 2619 | Finally, an optional third argument can be supplied, which |
| 2620 | gives the traceback to be substituted (useful when |
| 2621 | re-raising an exception after examining it). */ |
| 2622 | |
| 2623 | /* First, check the traceback argument, replacing None with |
| 2624 | NULL. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2625 | if (tb == Py_None) { |
| 2626 | Py_DECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2627 | tb = NULL; |
| 2628 | } |
| 2629 | else if (tb != NULL && !PyTraceBack_Check(tb)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2630 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 2631 | "raise: arg 3 must be a traceback or None"); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2632 | goto raise_error; |
| 2633 | } |
| 2634 | |
| 2635 | /* Next, replace a missing value with None */ |
| 2636 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2637 | value = Py_None; |
| 2638 | Py_INCREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2639 | } |
| 2640 | |
| 2641 | /* Next, repeatedly, replace a tuple exception with its first item */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2642 | while (PyTuple_Check(type) && PyTuple_Size(type) > 0) { |
| 2643 | PyObject *tmp = type; |
| 2644 | type = PyTuple_GET_ITEM(type, 0); |
| 2645 | Py_INCREF(type); |
| 2646 | Py_DECREF(tmp); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2647 | } |
| 2648 | |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2649 | if (PyString_Check(type)) |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2650 | ; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2651 | |
| 2652 | else if (PyClass_Check(type)) |
| 2653 | PyErr_NormalizeException(&type, &value, &tb); |
| 2654 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2655 | else if (PyInstance_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2656 | /* Raising an instance. The value should be a dummy. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2657 | if (value != Py_None) { |
| 2658 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2659 | "instance exception may not have a separate value"); |
| 2660 | goto raise_error; |
| 2661 | } |
| 2662 | else { |
| 2663 | /* Normalize to raise <class>, <instance> */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2664 | Py_DECREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2665 | value = type; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2666 | type = (PyObject*) ((PyInstanceObject*)type)->in_class; |
| 2667 | Py_INCREF(type); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2668 | } |
| 2669 | } |
| 2670 | else { |
| 2671 | /* Not something you can raise. You get an exception |
| 2672 | anyway, just not what you specified :-) */ |
Jeremy Hylton | 960d948 | 2001-04-27 02:25:33 +0000 | [diff] [blame] | 2673 | PyErr_Format(PyExc_TypeError, |
| 2674 | "exceptions must be strings, classes, or " |
| 2675 | "instances, not %s", type->ob_type->tp_name); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2676 | goto raise_error; |
| 2677 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2678 | PyErr_Restore(type, value, tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2679 | if (tb == NULL) |
| 2680 | return WHY_EXCEPTION; |
| 2681 | else |
| 2682 | return WHY_RERAISE; |
| 2683 | raise_error: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2684 | Py_XDECREF(value); |
| 2685 | Py_XDECREF(type); |
| 2686 | Py_XDECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2687 | return WHY_EXCEPTION; |
| 2688 | } |
| 2689 | |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 2690 | /* Iterate v argcnt times and store the results on the stack (via decreasing |
| 2691 | sp). Return 1 for success, 0 if error. */ |
| 2692 | |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2693 | static int |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 2694 | unpack_iterable(PyObject *v, int argcnt, PyObject **sp) |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2695 | { |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 2696 | int i = 0; |
| 2697 | PyObject *it; /* iter(v) */ |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2698 | PyObject *w; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2699 | |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 2700 | assert(v != NULL); |
| 2701 | |
| 2702 | it = PyObject_GetIter(v); |
| 2703 | if (it == NULL) |
| 2704 | goto Error; |
| 2705 | |
| 2706 | for (; i < argcnt; i++) { |
| 2707 | w = PyIter_Next(it); |
| 2708 | if (w == NULL) { |
| 2709 | /* Iterator done, via error or exhaustion. */ |
| 2710 | if (!PyErr_Occurred()) { |
| 2711 | PyErr_Format(PyExc_ValueError, |
| 2712 | "need more than %d value%s to unpack", |
| 2713 | i, i == 1 ? "" : "s"); |
| 2714 | } |
| 2715 | goto Error; |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2716 | } |
| 2717 | *--sp = w; |
| 2718 | } |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 2719 | |
| 2720 | /* We better have exhausted the iterator now. */ |
| 2721 | w = PyIter_Next(it); |
| 2722 | if (w == NULL) { |
| 2723 | if (PyErr_Occurred()) |
| 2724 | goto Error; |
| 2725 | Py_DECREF(it); |
| 2726 | return 1; |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2727 | } |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 2728 | PyErr_SetString(PyExc_ValueError, "too many values to unpack"); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2729 | /* fall through */ |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 2730 | Error: |
Barry Warsaw | 9101055 | 1997-08-25 22:30:51 +0000 | [diff] [blame] | 2731 | for (; i > 0; i--, sp++) |
| 2732 | Py_DECREF(*sp); |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 2733 | Py_XDECREF(it); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2734 | return 0; |
| 2735 | } |
| 2736 | |
| 2737 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2738 | #ifdef LLTRACE |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2739 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2740 | prtrace(PyObject *v, char *str) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2741 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2742 | printf("%s ", str); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2743 | if (PyObject_Print(v, stdout, 0) != 0) |
| 2744 | PyErr_Clear(); /* Don't know what else to do */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2745 | printf("\n"); |
Guido van Rossum | cc229ea | 2000-05-04 00:55:17 +0000 | [diff] [blame] | 2746 | return 1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2747 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2748 | #endif |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2749 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2750 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2751 | call_exc_trace(PyObject **p_trace, PyObject **p_newtrace, PyFrameObject *f) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2752 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2753 | PyObject *type, *value, *traceback, *arg; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2754 | int err; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2755 | PyErr_Fetch(&type, &value, &traceback); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 2756 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2757 | value = Py_None; |
| 2758 | Py_INCREF(value); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 2759 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2760 | arg = Py_BuildValue("(OOO)", type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2761 | if (arg == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2762 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2763 | return; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2764 | } |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2765 | err = call_trace(p_trace, p_newtrace, f, str_exception, arg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2766 | Py_DECREF(arg); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2767 | if (err == 0) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2768 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2769 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2770 | Py_XDECREF(type); |
| 2771 | Py_XDECREF(value); |
| 2772 | Py_XDECREF(traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2773 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2774 | } |
| 2775 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2776 | /* PyObject **p_trace: in/out; may not be NULL; |
| 2777 | may not point to NULL variable initially |
Fred Drake | 904aa7b | 2001-06-08 04:33:09 +0000 | [diff] [blame] | 2778 | PyObject **p_newtrace: in/out; may be NULL; |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2779 | may point to NULL variable; |
Fred Drake | 904aa7b | 2001-06-08 04:33:09 +0000 | [diff] [blame] | 2780 | may be same variable as p_newtrace |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2781 | PyObject *msg: in; must not be NULL |
Fred Drake | 904aa7b | 2001-06-08 04:33:09 +0000 | [diff] [blame] | 2782 | */ |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2783 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2784 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2785 | call_trace(PyObject **p_trace, PyObject **p_newtrace, PyFrameObject *f, |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2786 | PyObject *msg, PyObject *arg) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2787 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2788 | PyThreadState *tstate = f->f_tstate; |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2789 | PyObject *args; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2790 | PyObject *res = NULL; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2791 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2792 | if (tstate->tracing) { |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2793 | /* Don't do recursive traces */ |
| 2794 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2795 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2796 | *p_newtrace = NULL; |
| 2797 | } |
| 2798 | return 0; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2799 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2800 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2801 | args = PyTuple_New(3); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2802 | if (args == NULL) |
Guido van Rossum | f9c90c5 | 1997-08-05 02:18:01 +0000 | [diff] [blame] | 2803 | goto cleanup; |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2804 | Py_INCREF(msg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2805 | Py_INCREF(f); |
| 2806 | PyTuple_SET_ITEM(args, 0, (PyObject *)f); |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2807 | PyTuple_SET_ITEM(args, 1, msg); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2808 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2809 | arg = Py_None; |
| 2810 | Py_INCREF(arg); |
| 2811 | PyTuple_SET_ITEM(args, 2, arg); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2812 | tstate->tracing++; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2813 | PyFrame_FastToLocals(f); |
| 2814 | res = PyEval_CallObject(*p_trace, args); /* May clear *p_trace! */ |
| 2815 | PyFrame_LocalsToFast(f, 1); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2816 | tstate->tracing--; |
Guido van Rossum | f9c90c5 | 1997-08-05 02:18:01 +0000 | [diff] [blame] | 2817 | cleanup: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2818 | Py_XDECREF(args); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2819 | if (res == NULL) { |
| 2820 | /* The trace proc raised an exception */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2821 | PyTraceBack_Here(f); |
| 2822 | Py_XDECREF(*p_trace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2823 | *p_trace = NULL; |
| 2824 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2825 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2826 | *p_newtrace = NULL; |
| 2827 | } |
Barry Warsaw | f620263 | 1999-09-08 16:26:33 +0000 | [diff] [blame] | 2828 | /* to be extra double plus sure we don't get recursive |
| 2829 | * calls inf either tracefunc or profilefunc gets an |
| 2830 | * exception, zap the global variables. |
| 2831 | */ |
| 2832 | Py_XDECREF(tstate->sys_tracefunc); |
| 2833 | tstate->sys_tracefunc = NULL; |
| 2834 | Py_XDECREF(tstate->sys_profilefunc); |
| 2835 | tstate->sys_profilefunc = NULL; |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2836 | return -1; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2837 | } |
| 2838 | else { |
| 2839 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2840 | Py_XDECREF(*p_newtrace); |
| 2841 | if (res == Py_None) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2842 | *p_newtrace = NULL; |
| 2843 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2844 | Py_INCREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2845 | *p_newtrace = res; |
| 2846 | } |
| 2847 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2848 | Py_DECREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2849 | return 0; |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2850 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2851 | } |
| 2852 | |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 2853 | /* Initialize the strings that get passed to the profile and trace functions; |
| 2854 | * this avoids doing this while we're actually profiling/tracing. |
| 2855 | */ |
| 2856 | int |
| 2857 | _PyTrace_Init(void) |
| 2858 | { |
| 2859 | if (str_call == NULL) { |
| 2860 | str_call = PyString_InternFromString("call"); |
| 2861 | if (str_call == NULL) |
| 2862 | return -1; |
| 2863 | } |
| 2864 | if (str_exception == NULL) { |
| 2865 | str_exception = PyString_InternFromString("exception"); |
| 2866 | if (str_exception == NULL) |
| 2867 | return -1; |
| 2868 | } |
| 2869 | if (str_line == NULL) { |
| 2870 | str_line = PyString_InternFromString("line"); |
| 2871 | if (str_line == NULL) |
| 2872 | return -1; |
| 2873 | } |
| 2874 | if (str_return == NULL) { |
| 2875 | str_return = PyString_InternFromString("return"); |
| 2876 | if (str_return == NULL) |
| 2877 | return -1; |
| 2878 | } |
| 2879 | return 0; |
| 2880 | } |
| 2881 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2882 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2883 | PyEval_GetBuiltins(void) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2884 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 2885 | PyThreadState *tstate = PyThreadState_Get(); |
| 2886 | PyFrameObject *current_frame = tstate->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2887 | if (current_frame == NULL) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 2888 | return tstate->interp->builtins; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2889 | else |
| 2890 | return current_frame->f_builtins; |
| 2891 | } |
| 2892 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2893 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2894 | PyEval_GetLocals(void) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2895 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2896 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2897 | if (current_frame == NULL) |
| 2898 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2899 | PyFrame_FastToLocals(current_frame); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2900 | return current_frame->f_locals; |
| 2901 | } |
| 2902 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2903 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2904 | PyEval_GetGlobals(void) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2905 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2906 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2907 | if (current_frame == NULL) |
| 2908 | return NULL; |
| 2909 | else |
| 2910 | return current_frame->f_globals; |
| 2911 | } |
| 2912 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2913 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2914 | PyEval_GetFrame(void) |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2915 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2916 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2917 | return (PyObject *)current_frame; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2918 | } |
| 2919 | |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2920 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2921 | PyEval_GetRestricted(void) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2922 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2923 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2924 | return current_frame == NULL ? 0 : current_frame->f_restricted; |
| 2925 | } |
| 2926 | |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 2927 | int |
Jeremy Hylton | 061d106 | 2001-03-22 02:32:48 +0000 | [diff] [blame] | 2928 | PyEval_GetNestedScopes(void) |
| 2929 | { |
| 2930 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
| 2931 | return current_frame == NULL ? 0 : |
| 2932 | current_frame->f_code->co_flags & CO_NESTED; |
| 2933 | } |
| 2934 | |
| 2935 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2936 | Py_FlushLine(void) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2937 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2938 | PyObject *f = PySys_GetObject("stdout"); |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 2939 | if (f == NULL) |
| 2940 | return 0; |
| 2941 | if (!PyFile_SoftSpace(f, 0)) |
| 2942 | return 0; |
| 2943 | return PyFile_WriteString("\n", f); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2944 | } |
| 2945 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2946 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2947 | /* External interface to call any callable object. |
| 2948 | The arg must be a tuple or NULL. */ |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2949 | |
Guido van Rossum | d7ed683 | 1997-08-30 15:02:50 +0000 | [diff] [blame] | 2950 | #undef PyEval_CallObject |
| 2951 | /* for backward compatibility: export this interface */ |
| 2952 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2953 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2954 | PyEval_CallObject(PyObject *func, PyObject *arg) |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2955 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2956 | return PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2957 | } |
Guido van Rossum | d7ed683 | 1997-08-30 15:02:50 +0000 | [diff] [blame] | 2958 | #define PyEval_CallObject(func,arg) \ |
| 2959 | PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL) |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2960 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2961 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2962 | PyEval_CallObjectWithKeywords(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2963 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2964 | PyObject *result; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2965 | |
| 2966 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2967 | arg = PyTuple_New(0); |
| 2968 | else if (!PyTuple_Check(arg)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2969 | PyErr_SetString(PyExc_TypeError, |
| 2970 | "argument list must be a tuple"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2971 | return NULL; |
| 2972 | } |
| 2973 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2974 | Py_INCREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2975 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2976 | if (kw != NULL && !PyDict_Check(kw)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2977 | PyErr_SetString(PyExc_TypeError, |
| 2978 | "keyword list must be a dictionary"); |
Guido van Rossum | 25826c9 | 2000-04-21 21:17:39 +0000 | [diff] [blame] | 2979 | Py_DECREF(arg); |
Guido van Rossum | e3e61c1 | 1995-08-04 04:14:47 +0000 | [diff] [blame] | 2980 | return NULL; |
| 2981 | } |
| 2982 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2983 | result = call_object(func, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2984 | Py_DECREF(arg); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2985 | return result; |
| 2986 | } |
| 2987 | |
| 2988 | /* How often is each kind of object called? The answer depends on the |
| 2989 | program. An instrumented call_object() was used to run the Python |
| 2990 | regression test suite. The results were: |
| 2991 | 4200000 PyCFunctions |
| 2992 | 390000 fast_function() calls |
| 2993 | 94000 other functions |
| 2994 | 480000 all functions (sum of prev two) |
| 2995 | 150000 methods |
| 2996 | 100000 classes |
| 2997 | |
| 2998 | Tests on other bodies of code show that PyCFunctions are still |
| 2999 | most common, but not by such a large margin. |
| 3000 | */ |
| 3001 | |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3002 | static char * |
| 3003 | get_func_name(PyObject *func) |
| 3004 | { |
| 3005 | if (PyMethod_Check(func)) |
| 3006 | return get_func_name(PyMethod_GET_FUNCTION(func)); |
| 3007 | else if (PyFunction_Check(func)) |
| 3008 | return PyString_AsString(((PyFunctionObject*)func)->func_name); |
| 3009 | else if (PyCFunction_Check(func)) |
| 3010 | return ((PyCFunctionObject*)func)->m_ml->ml_name; |
| 3011 | else if (PyClass_Check(func)) |
| 3012 | return PyString_AsString(((PyClassObject*)func)->cl_name); |
| 3013 | else if (PyInstance_Check(func)) { |
| 3014 | return PyString_AsString( |
| 3015 | ((PyInstanceObject*)func)->in_class->cl_name); |
| 3016 | } else { |
| 3017 | return func->ob_type->tp_name; |
| 3018 | } |
| 3019 | } |
| 3020 | |
| 3021 | static char * |
| 3022 | get_func_desc(PyObject *func) |
| 3023 | { |
| 3024 | if (PyMethod_Check(func)) |
| 3025 | return "()"; |
| 3026 | else if (PyFunction_Check(func)) |
| 3027 | return "()"; |
| 3028 | else if (PyCFunction_Check(func)) |
| 3029 | return "()"; |
| 3030 | else if (PyClass_Check(func)) |
| 3031 | return " constructor"; |
| 3032 | else if (PyInstance_Check(func)) { |
| 3033 | return " instance"; |
| 3034 | } else { |
| 3035 | return " object"; |
| 3036 | } |
| 3037 | } |
| 3038 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3039 | static PyObject * |
| 3040 | call_object(PyObject *func, PyObject *arg, PyObject *kw) |
| 3041 | { |
| 3042 | ternaryfunc call; |
| 3043 | PyObject *result; |
| 3044 | |
| 3045 | if (PyMethod_Check(func)) |
| 3046 | result = call_method(func, arg, kw); |
| 3047 | else if (PyFunction_Check(func)) |
| 3048 | result = call_eval_code2(func, arg, kw); |
| 3049 | else if (PyCFunction_Check(func)) |
| 3050 | result = call_cfunction(func, arg, kw); |
| 3051 | else if (PyClass_Check(func)) |
| 3052 | result = PyInstance_New(func, arg, kw); |
| 3053 | else if (PyInstance_Check(func)) |
| 3054 | result = call_instance(func, arg, kw); |
| 3055 | else if ((call = func->ob_type->tp_call) != NULL) |
| 3056 | result = (*call)(func, arg, kw); |
| 3057 | else { |
Tim Peters | 239508c | 2001-06-16 00:09:28 +0000 | [diff] [blame] | 3058 | PyErr_Format(PyExc_TypeError, |
| 3059 | "object of type '%.100s' is not callable", |
| 3060 | func->ob_type->tp_name); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3061 | return NULL; |
| 3062 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3063 | if (result == NULL && !PyErr_Occurred()) |
| 3064 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3065 | "NULL result without error in call_object"); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3066 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3067 | return result; |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 3068 | } |
| 3069 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3070 | static PyObject * |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3071 | call_cfunction(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3072 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3073 | PyCFunctionObject* f = (PyCFunctionObject*)func; |
| 3074 | PyCFunction meth = PyCFunction_GET_FUNCTION(func); |
| 3075 | PyObject *self = PyCFunction_GET_SELF(func); |
| 3076 | int flags = PyCFunction_GET_FLAGS(func); |
| 3077 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3078 | if (flags & METH_KEYWORDS) { |
| 3079 | return (*(PyCFunctionWithKeywords)meth)(self, arg, kw); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3080 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3081 | if (kw != NULL && PyDict_Size(kw) != 0) { |
| 3082 | PyErr_Format(PyExc_TypeError, |
| 3083 | "%.200s() takes no keyword arguments", |
| 3084 | f->m_ml->ml_name); |
| 3085 | return NULL; |
| 3086 | } |
Fred Drake | 1a7aab7 | 2001-01-04 22:33:02 +0000 | [diff] [blame] | 3087 | if (flags & METH_VARARGS) { |
| 3088 | return (*meth)(self, arg); |
| 3089 | } |
| 3090 | if (!(flags & METH_VARARGS)) { |
| 3091 | /* the really old style */ |
| 3092 | int size = PyTuple_GET_SIZE(arg); |
| 3093 | if (size == 1) |
| 3094 | arg = PyTuple_GET_ITEM(arg, 0); |
| 3095 | else if (size == 0) |
| 3096 | arg = NULL; |
| 3097 | return (*meth)(self, arg); |
| 3098 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3099 | /* should never get here ??? */ |
| 3100 | PyErr_BadInternalCall(); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3101 | return NULL; |
| 3102 | } |
| 3103 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3104 | static PyObject * |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3105 | call_instance(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3106 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3107 | PyObject *res, *call = PyObject_GetAttrString(func, "__call__"); |
| 3108 | if (call == NULL) { |
| 3109 | PyInstanceObject *inst = (PyInstanceObject*) func; |
| 3110 | PyErr_Clear(); |
| 3111 | PyErr_Format(PyExc_AttributeError, |
| 3112 | "%.200s instance has no __call__ method", |
| 3113 | PyString_AsString(inst->in_class->cl_name)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3114 | return NULL; |
| 3115 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3116 | res = call_object(call, arg, kw); |
| 3117 | Py_DECREF(call); |
| 3118 | return res; |
| 3119 | } |
| 3120 | |
| 3121 | static PyObject * |
| 3122 | call_method(PyObject *func, PyObject *arg, PyObject *kw) |
| 3123 | { |
| 3124 | PyObject *self = PyMethod_GET_SELF(func); |
| 3125 | PyObject *class = PyMethod_GET_CLASS(func); |
| 3126 | PyObject *result; |
| 3127 | |
| 3128 | func = PyMethod_GET_FUNCTION(func); |
| 3129 | if (self == NULL) { |
| 3130 | /* Unbound methods must be called with an instance of |
| 3131 | the class (or a derived class) as first argument */ |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 3132 | int ok; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3133 | if (PyTuple_Size(arg) >= 1) |
| 3134 | self = PyTuple_GET_ITEM(arg, 0); |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 3135 | if (self == NULL) |
| 3136 | ok = 0; |
| 3137 | else { |
| 3138 | ok = PyObject_IsInstance(self, class); |
| 3139 | if (ok < 0) |
| 3140 | return NULL; |
| 3141 | } |
| 3142 | if (!ok) { |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 3143 | PyErr_Format(PyExc_TypeError, |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 3144 | "unbound method %s%s must be " |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 3145 | "called with instance as first argument", |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 3146 | get_func_name(func), get_func_desc(func)); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3147 | return NULL; |
| 3148 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3149 | Py_INCREF(arg); |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 3150 | } |
| 3151 | else { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3152 | int argcount = PyTuple_Size(arg); |
| 3153 | PyObject *newarg = PyTuple_New(argcount + 1); |
| 3154 | int i; |
| 3155 | if (newarg == NULL) |
| 3156 | return NULL; |
| 3157 | Py_INCREF(self); |
| 3158 | PyTuple_SET_ITEM(newarg, 0, self); |
| 3159 | for (i = 0; i < argcount; i++) { |
| 3160 | PyObject *v = PyTuple_GET_ITEM(arg, i); |
| 3161 | Py_XINCREF(v); |
| 3162 | PyTuple_SET_ITEM(newarg, i+1, v); |
| 3163 | } |
| 3164 | arg = newarg; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3165 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3166 | result = call_object(func, arg, kw); |
| 3167 | Py_DECREF(arg); |
| 3168 | return result; |
| 3169 | } |
| 3170 | |
| 3171 | static PyObject * |
| 3172 | call_eval_code2(PyObject *func, PyObject *arg, PyObject *kw) |
| 3173 | { |
| 3174 | PyObject *result; |
| 3175 | PyObject *argdefs; |
| 3176 | PyObject **d, **k; |
| 3177 | int nk, nd; |
| 3178 | |
| 3179 | argdefs = PyFunction_GET_DEFAULTS(func); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3180 | if (argdefs != NULL && PyTuple_Check(argdefs)) { |
| 3181 | d = &PyTuple_GET_ITEM((PyTupleObject *)argdefs, 0); |
| 3182 | nd = PyTuple_Size(argdefs); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3183 | } |
| 3184 | else { |
| 3185 | d = NULL; |
| 3186 | nd = 0; |
| 3187 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3188 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3189 | if (kw != NULL) { |
| 3190 | int pos, i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3191 | nk = PyDict_Size(kw); |
| 3192 | k = PyMem_NEW(PyObject *, 2*nk); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3193 | if (k == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3194 | PyErr_NoMemory(); |
| 3195 | Py_DECREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3196 | return NULL; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3197 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3198 | pos = i = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3199 | while (PyDict_Next(kw, &pos, &k[i], &k[i+1])) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3200 | i += 2; |
| 3201 | nk = i/2; |
| 3202 | /* XXX This is broken if the caller deletes dict items! */ |
| 3203 | } |
| 3204 | else { |
| 3205 | k = NULL; |
| 3206 | nk = 0; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3207 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3208 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3209 | result = eval_code2( |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3210 | (PyCodeObject *)PyFunction_GET_CODE(func), |
| 3211 | PyFunction_GET_GLOBALS(func), (PyObject *)NULL, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3212 | &PyTuple_GET_ITEM(arg, 0), PyTuple_Size(arg), |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 3213 | k, nk, d, nd, |
| 3214 | PyFunction_GET_CLOSURE(func)); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3215 | |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 3216 | if (k != NULL) |
| 3217 | PyMem_DEL(k); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3218 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3219 | return result; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3220 | } |
| 3221 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3222 | #define EXT_POP(STACK_POINTER) (*--(STACK_POINTER)) |
| 3223 | |
| 3224 | /* The two fast_xxx() functions optimize calls for which no argument |
| 3225 | tuple is necessary; the objects are passed directly from the stack. |
| 3226 | fast_cfunction() is called for METH_OLDARGS functions. |
| 3227 | fast_function() is for functions with no special argument handling. |
| 3228 | */ |
| 3229 | |
| 3230 | static PyObject * |
| 3231 | fast_cfunction(PyObject *func, PyObject ***pp_stack, int na) |
| 3232 | { |
| 3233 | PyCFunction meth = PyCFunction_GET_FUNCTION(func); |
| 3234 | PyObject *self = PyCFunction_GET_SELF(func); |
| 3235 | |
| 3236 | if (na == 0) |
| 3237 | return (*meth)(self, NULL); |
Charles G. Waldman | eec72a7 | 2001-01-10 22:11:59 +0000 | [diff] [blame] | 3238 | else if (na == 1) { |
| 3239 | PyObject *arg = EXT_POP(*pp_stack); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3240 | PyObject *result = (*meth)(self, arg); |
Charles G. Waldman | eec72a7 | 2001-01-10 22:11:59 +0000 | [diff] [blame] | 3241 | Py_DECREF(arg); |
| 3242 | return result; |
| 3243 | } else { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3244 | PyObject *args = load_args(pp_stack, na); |
| 3245 | PyObject *result = (*meth)(self, args); |
| 3246 | Py_DECREF(args); |
| 3247 | return result; |
| 3248 | } |
| 3249 | } |
| 3250 | |
| 3251 | static PyObject * |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3252 | fast_function(PyObject *func, PyObject ***pp_stack, int n, int na, int nk) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3253 | { |
| 3254 | PyObject *co = PyFunction_GET_CODE(func); |
| 3255 | PyObject *globals = PyFunction_GET_GLOBALS(func); |
| 3256 | PyObject *argdefs = PyFunction_GET_DEFAULTS(func); |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 3257 | PyObject *closure = PyFunction_GET_CLOSURE(func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3258 | PyObject **d = NULL; |
| 3259 | int nd = 0; |
| 3260 | |
| 3261 | if (argdefs != NULL) { |
| 3262 | d = &PyTuple_GET_ITEM(argdefs, 0); |
| 3263 | nd = ((PyTupleObject *)argdefs)->ob_size; |
| 3264 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3265 | return eval_code2((PyCodeObject *)co, globals, |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3266 | (PyObject *)NULL, (*pp_stack)-n, na, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 3267 | (*pp_stack)-2*nk, nk, d, nd, |
| 3268 | closure); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3269 | } |
| 3270 | |
| 3271 | static PyObject * |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3272 | update_keyword_args(PyObject *orig_kwdict, int nk, PyObject ***pp_stack, |
| 3273 | PyObject *func) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3274 | { |
| 3275 | PyObject *kwdict = NULL; |
| 3276 | if (orig_kwdict == NULL) |
| 3277 | kwdict = PyDict_New(); |
| 3278 | else { |
| 3279 | kwdict = PyDict_Copy(orig_kwdict); |
| 3280 | Py_DECREF(orig_kwdict); |
| 3281 | } |
| 3282 | if (kwdict == NULL) |
| 3283 | return NULL; |
| 3284 | while (--nk >= 0) { |
| 3285 | int err; |
| 3286 | PyObject *value = EXT_POP(*pp_stack); |
| 3287 | PyObject *key = EXT_POP(*pp_stack); |
| 3288 | if (PyDict_GetItem(kwdict, key) != NULL) { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3289 | PyErr_Format(PyExc_TypeError, |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3290 | "%.200s%s got multiple values " |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3291 | "for keyword argument '%.200s'", |
| 3292 | get_func_name(func), |
| 3293 | get_func_desc(func), |
| 3294 | PyString_AsString(key)); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3295 | Py_DECREF(key); |
| 3296 | Py_DECREF(value); |
| 3297 | Py_DECREF(kwdict); |
| 3298 | return NULL; |
| 3299 | } |
| 3300 | err = PyDict_SetItem(kwdict, key, value); |
| 3301 | Py_DECREF(key); |
| 3302 | Py_DECREF(value); |
| 3303 | if (err) { |
| 3304 | Py_DECREF(kwdict); |
| 3305 | return NULL; |
| 3306 | } |
| 3307 | } |
| 3308 | return kwdict; |
| 3309 | } |
| 3310 | |
| 3311 | static PyObject * |
| 3312 | update_star_args(int nstack, int nstar, PyObject *stararg, |
| 3313 | PyObject ***pp_stack) |
| 3314 | { |
| 3315 | PyObject *callargs, *w; |
| 3316 | |
| 3317 | callargs = PyTuple_New(nstack + nstar); |
| 3318 | if (callargs == NULL) { |
| 3319 | return NULL; |
| 3320 | } |
| 3321 | if (nstar) { |
| 3322 | int i; |
| 3323 | for (i = 0; i < nstar; i++) { |
| 3324 | PyObject *a = PyTuple_GET_ITEM(stararg, i); |
| 3325 | Py_INCREF(a); |
| 3326 | PyTuple_SET_ITEM(callargs, nstack + i, a); |
| 3327 | } |
| 3328 | } |
| 3329 | while (--nstack >= 0) { |
| 3330 | w = EXT_POP(*pp_stack); |
| 3331 | PyTuple_SET_ITEM(callargs, nstack, w); |
| 3332 | } |
| 3333 | return callargs; |
| 3334 | } |
| 3335 | |
| 3336 | static PyObject * |
| 3337 | load_args(PyObject ***pp_stack, int na) |
| 3338 | { |
| 3339 | PyObject *args = PyTuple_New(na); |
| 3340 | PyObject *w; |
| 3341 | |
| 3342 | if (args == NULL) |
| 3343 | return NULL; |
| 3344 | while (--na >= 0) { |
| 3345 | w = EXT_POP(*pp_stack); |
| 3346 | PyTuple_SET_ITEM(args, na, w); |
| 3347 | } |
| 3348 | return args; |
| 3349 | } |
| 3350 | |
| 3351 | static PyObject * |
| 3352 | do_call(PyObject *func, PyObject ***pp_stack, int na, int nk) |
| 3353 | { |
| 3354 | PyObject *callargs = NULL; |
| 3355 | PyObject *kwdict = NULL; |
| 3356 | PyObject *result = NULL; |
| 3357 | |
| 3358 | if (nk > 0) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3359 | kwdict = update_keyword_args(NULL, nk, pp_stack, func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3360 | if (kwdict == NULL) |
| 3361 | goto call_fail; |
| 3362 | } |
| 3363 | callargs = load_args(pp_stack, na); |
| 3364 | if (callargs == NULL) |
| 3365 | goto call_fail; |
| 3366 | result = call_object(func, callargs, kwdict); |
| 3367 | call_fail: |
| 3368 | Py_XDECREF(callargs); |
| 3369 | Py_XDECREF(kwdict); |
| 3370 | return result; |
| 3371 | } |
| 3372 | |
| 3373 | static PyObject * |
| 3374 | ext_do_call(PyObject *func, PyObject ***pp_stack, int flags, int na, int nk) |
| 3375 | { |
| 3376 | int nstar = 0; |
| 3377 | PyObject *callargs = NULL; |
| 3378 | PyObject *stararg = NULL; |
| 3379 | PyObject *kwdict = NULL; |
| 3380 | PyObject *result = NULL; |
| 3381 | |
| 3382 | if (flags & CALL_FLAG_KW) { |
| 3383 | kwdict = EXT_POP(*pp_stack); |
| 3384 | if (!(kwdict && PyDict_Check(kwdict))) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3385 | PyErr_Format(PyExc_TypeError, |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3386 | "%s%s argument after ** " |
| 3387 | "must be a dictionary", |
| 3388 | get_func_name(func), |
| 3389 | get_func_desc(func)); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3390 | goto ext_call_fail; |
| 3391 | } |
| 3392 | } |
| 3393 | if (flags & CALL_FLAG_VAR) { |
| 3394 | stararg = EXT_POP(*pp_stack); |
| 3395 | if (!PyTuple_Check(stararg)) { |
| 3396 | PyObject *t = NULL; |
| 3397 | t = PySequence_Tuple(stararg); |
| 3398 | if (t == NULL) { |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3399 | if (PyErr_ExceptionMatches(PyExc_TypeError)) { |
| 3400 | PyErr_Format(PyExc_TypeError, |
| 3401 | "%s%s argument after * " |
| 3402 | "must be a sequence", |
| 3403 | get_func_name(func), |
| 3404 | get_func_desc(func)); |
| 3405 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3406 | goto ext_call_fail; |
| 3407 | } |
| 3408 | Py_DECREF(stararg); |
| 3409 | stararg = t; |
| 3410 | } |
| 3411 | nstar = PyTuple_GET_SIZE(stararg); |
| 3412 | } |
| 3413 | if (nk > 0) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3414 | kwdict = update_keyword_args(kwdict, nk, pp_stack, func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3415 | if (kwdict == NULL) |
| 3416 | goto ext_call_fail; |
| 3417 | } |
| 3418 | callargs = update_star_args(na, nstar, stararg, pp_stack); |
| 3419 | if (callargs == NULL) |
| 3420 | goto ext_call_fail; |
| 3421 | result = call_object(func, callargs, kwdict); |
| 3422 | ext_call_fail: |
| 3423 | Py_XDECREF(callargs); |
| 3424 | Py_XDECREF(kwdict); |
| 3425 | Py_XDECREF(stararg); |
| 3426 | return result; |
| 3427 | } |
| 3428 | |
Guido van Rossum | 3b9c667 | 1996-07-30 18:40:29 +0000 | [diff] [blame] | 3429 | #define SLICE_ERROR_MSG \ |
| 3430 | "standard sequence type does not support step size other than one" |
| 3431 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3432 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3433 | loop_subscript(PyObject *v, PyObject *w) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3434 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3435 | PySequenceMethods *sq = v->ob_type->tp_as_sequence; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3436 | int i; |
Guido van Rossum | 7e33c6e | 1998-05-22 00:52:29 +0000 | [diff] [blame] | 3437 | if (sq == NULL || sq->sq_item == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3438 | PyErr_SetString(PyExc_TypeError, "loop over non-sequence"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3439 | return NULL; |
| 3440 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3441 | i = PyInt_AsLong(w); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3442 | v = (*sq->sq_item)(v, i); |
| 3443 | if (v) |
| 3444 | return v; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 3445 | if (PyErr_ExceptionMatches(PyExc_IndexError)) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3446 | PyErr_Clear(); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3447 | return NULL; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3448 | } |
| 3449 | |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3450 | /* Extract a slice index from a PyInt or PyLong, the index is bound to |
| 3451 | the range [-INT_MAX+1, INTMAX]. Returns 0 and an exception if there is |
| 3452 | and error. Returns 1 on success.*/ |
| 3453 | |
| 3454 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3455 | _PyEval_SliceIndex(PyObject *v, int *pi) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3456 | { |
| 3457 | if (v != NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3458 | long x; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3459 | if (PyInt_Check(v)) { |
| 3460 | x = PyInt_AsLong(v); |
| 3461 | } else if (PyLong_Check(v)) { |
| 3462 | x = PyLong_AsLong(v); |
| 3463 | if (x==-1 && PyErr_Occurred()) { |
| 3464 | PyObject *long_zero; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3465 | int cmp; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3466 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3467 | if (!PyErr_ExceptionMatches( |
| 3468 | PyExc_OverflowError)) { |
| 3469 | /* It's not an overflow error, so just |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3470 | signal an error */ |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3471 | return 0; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3472 | } |
| 3473 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3474 | /* Clear the OverflowError */ |
| 3475 | PyErr_Clear(); |
| 3476 | |
| 3477 | /* It's an overflow error, so we need to |
| 3478 | check the sign of the long integer, |
| 3479 | set the value to INT_MAX or 0, and clear |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3480 | the error. */ |
| 3481 | |
| 3482 | /* Create a long integer with a value of 0 */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3483 | long_zero = PyLong_FromLong(0L); |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3484 | if (long_zero == NULL) return 0; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3485 | |
| 3486 | /* Check sign */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3487 | cmp = PyObject_RichCompareBool(v, long_zero, |
| 3488 | Py_GT); |
| 3489 | Py_DECREF(long_zero); |
| 3490 | if (cmp < 0) |
| 3491 | return 0; |
| 3492 | else if (cmp > 0) |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3493 | x = INT_MAX; |
| 3494 | else |
| 3495 | x = 0; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3496 | } |
| 3497 | } else { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3498 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3499 | "slice indices must be integers"); |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3500 | return 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3501 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3502 | /* Truncate -- very long indices are truncated anyway */ |
| 3503 | if (x > INT_MAX) |
| 3504 | x = INT_MAX; |
| 3505 | else if (x < -INT_MAX) |
| 3506 | x = 0; |
| 3507 | *pi = x; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3508 | } |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3509 | return 1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3510 | } |
| 3511 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3512 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3513 | apply_slice(PyObject *u, PyObject *v, PyObject *w) /* return u[v:w] */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3514 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3515 | int ilow = 0, ihigh = INT_MAX; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3516 | if (!_PyEval_SliceIndex(v, &ilow)) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3517 | return NULL; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3518 | if (!_PyEval_SliceIndex(w, &ihigh)) |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3519 | return NULL; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3520 | return PySequence_GetSlice(u, ilow, ihigh); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3521 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3522 | |
| 3523 | static int |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3524 | assign_slice(PyObject *u, PyObject *v, PyObject *w, PyObject *x) |
| 3525 | /* u[v:w] = x */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3526 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3527 | int ilow = 0, ihigh = INT_MAX; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3528 | if (!_PyEval_SliceIndex(v, &ilow)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3529 | return -1; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3530 | if (!_PyEval_SliceIndex(w, &ihigh)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3531 | return -1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3532 | if (x == NULL) |
| 3533 | return PySequence_DelSlice(u, ilow, ihigh); |
| 3534 | else |
| 3535 | return PySequence_SetSlice(u, ilow, ihigh, x); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3536 | } |
| 3537 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3538 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3539 | cmp_outcome(int op, register PyObject *v, register PyObject *w) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3540 | { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3541 | int res = 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3542 | switch (op) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3543 | case IS: |
| 3544 | case IS_NOT: |
| 3545 | res = (v == w); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3546 | if (op == (int) IS_NOT) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3547 | res = !res; |
| 3548 | break; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3549 | case IN: |
| 3550 | case NOT_IN: |
Guido van Rossum | 7e33c6e | 1998-05-22 00:52:29 +0000 | [diff] [blame] | 3551 | res = PySequence_Contains(w, v); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3552 | if (res < 0) |
| 3553 | return NULL; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3554 | if (op == (int) NOT_IN) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3555 | res = !res; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3556 | break; |
| 3557 | case EXC_MATCH: |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 3558 | res = PyErr_GivenExceptionMatches(v, w); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3559 | break; |
| 3560 | default: |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3561 | return PyObject_RichCompare(v, w, op); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3562 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3563 | v = res ? Py_True : Py_False; |
| 3564 | Py_INCREF(v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3565 | return v; |
| 3566 | } |
| 3567 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3568 | static PyObject * |
| 3569 | import_from(PyObject *v, PyObject *name) |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3570 | { |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3571 | PyObject *x; |
| 3572 | |
| 3573 | x = PyObject_GetAttr(v, name); |
| 3574 | if (x == NULL && PyErr_ExceptionMatches(PyExc_AttributeError)) { |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3575 | PyErr_Format(PyExc_ImportError, |
| 3576 | "cannot import name %.230s", |
| 3577 | PyString_AsString(name)); |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3578 | } |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3579 | return x; |
| 3580 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3581 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3582 | static int |
| 3583 | import_all_from(PyObject *locals, PyObject *v) |
| 3584 | { |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3585 | PyObject *all = PyObject_GetAttrString(v, "__all__"); |
| 3586 | PyObject *dict, *name, *value; |
| 3587 | int skip_leading_underscores = 0; |
| 3588 | int pos, err; |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3589 | |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3590 | if (all == NULL) { |
| 3591 | if (!PyErr_ExceptionMatches(PyExc_AttributeError)) |
| 3592 | return -1; /* Unexpected error */ |
| 3593 | PyErr_Clear(); |
| 3594 | dict = PyObject_GetAttrString(v, "__dict__"); |
| 3595 | if (dict == NULL) { |
| 3596 | if (!PyErr_ExceptionMatches(PyExc_AttributeError)) |
| 3597 | return -1; |
| 3598 | PyErr_SetString(PyExc_ImportError, |
| 3599 | "from-import-* object has no __dict__ and no __all__"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3600 | return -1; |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3601 | } |
| 3602 | all = PyMapping_Keys(dict); |
| 3603 | Py_DECREF(dict); |
| 3604 | if (all == NULL) |
| 3605 | return -1; |
| 3606 | skip_leading_underscores = 1; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3607 | } |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3608 | |
| 3609 | for (pos = 0, err = 0; ; pos++) { |
| 3610 | name = PySequence_GetItem(all, pos); |
| 3611 | if (name == NULL) { |
| 3612 | if (!PyErr_ExceptionMatches(PyExc_IndexError)) |
| 3613 | err = -1; |
| 3614 | else |
| 3615 | PyErr_Clear(); |
| 3616 | break; |
| 3617 | } |
| 3618 | if (skip_leading_underscores && |
| 3619 | PyString_Check(name) && |
| 3620 | PyString_AS_STRING(name)[0] == '_') |
| 3621 | { |
| 3622 | Py_DECREF(name); |
| 3623 | continue; |
| 3624 | } |
| 3625 | value = PyObject_GetAttr(v, name); |
| 3626 | if (value == NULL) |
| 3627 | err = -1; |
| 3628 | else |
| 3629 | err = PyDict_SetItem(locals, name, value); |
| 3630 | Py_DECREF(name); |
| 3631 | Py_XDECREF(value); |
| 3632 | if (err != 0) |
| 3633 | break; |
| 3634 | } |
| 3635 | Py_DECREF(all); |
| 3636 | return err; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3637 | } |
| 3638 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3639 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3640 | build_class(PyObject *methods, PyObject *bases, PyObject *name) |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3641 | { |
Guido van Rossum | cd64965 | 1997-08-22 16:56:16 +0000 | [diff] [blame] | 3642 | int i, n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3643 | if (!PyTuple_Check(bases)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3644 | PyErr_SetString(PyExc_SystemError, |
| 3645 | "build_class with non-tuple bases"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3646 | return NULL; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3647 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3648 | if (!PyDict_Check(methods)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3649 | PyErr_SetString(PyExc_SystemError, |
| 3650 | "build_class with non-dictionary"); |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3651 | return NULL; |
| 3652 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3653 | if (!PyString_Check(name)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3654 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 7a5b796 | 2000-03-31 13:52:29 +0000 | [diff] [blame] | 3655 | "build_class with non-string name"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3656 | return NULL; |
| 3657 | } |
Guido van Rossum | cd64965 | 1997-08-22 16:56:16 +0000 | [diff] [blame] | 3658 | n = PyTuple_Size(bases); |
| 3659 | for (i = 0; i < n; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3660 | PyObject *base = PyTuple_GET_ITEM(bases, i); |
| 3661 | if (!PyClass_Check(base)) { |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 3662 | /* Call the base's *type*, if it is callable. |
| 3663 | This code is a hook for Donald Beaudry's |
| 3664 | and Jim Fulton's type extensions. In |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 3665 | unextended Python it will never be triggered |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3666 | since its types are not callable. |
| 3667 | Ditto: call the bases's *class*, if it has |
| 3668 | one. This makes the same thing possible |
| 3669 | without writing C code. A true meta-object |
| 3670 | protocol! */ |
| 3671 | PyObject *basetype = (PyObject *)base->ob_type; |
| 3672 | PyObject *callable = NULL; |
| 3673 | if (PyCallable_Check(basetype)) |
| 3674 | callable = basetype; |
| 3675 | else |
| 3676 | callable = PyObject_GetAttrString( |
| 3677 | base, "__class__"); |
| 3678 | if (callable) { |
| 3679 | PyObject *args; |
| 3680 | PyObject *newclass = NULL; |
| 3681 | args = Py_BuildValue( |
| 3682 | "(OOO)", name, bases, methods); |
| 3683 | if (args != NULL) { |
| 3684 | newclass = PyEval_CallObject( |
| 3685 | callable, args); |
| 3686 | Py_DECREF(args); |
| 3687 | } |
Guido van Rossum | 730806d | 1998-04-10 22:27:42 +0000 | [diff] [blame] | 3688 | if (callable != basetype) { |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3689 | Py_DECREF(callable); |
Guido van Rossum | 730806d | 1998-04-10 22:27:42 +0000 | [diff] [blame] | 3690 | } |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3691 | return newclass; |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 3692 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3693 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3694 | "base is not a class object"); |
| 3695 | return NULL; |
| 3696 | } |
| 3697 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3698 | return PyClass_New(bases, methods, name); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3699 | } |
| 3700 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3701 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3702 | exec_statement(PyFrameObject *f, PyObject *prog, PyObject *globals, |
| 3703 | PyObject *locals) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3704 | { |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3705 | int n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3706 | PyObject *v; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3707 | int plain = 0; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3708 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3709 | if (PyTuple_Check(prog) && globals == Py_None && locals == Py_None && |
| 3710 | ((n = PyTuple_Size(prog)) == 2 || n == 3)) { |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3711 | /* Backward compatibility hack */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3712 | globals = PyTuple_GetItem(prog, 1); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3713 | if (n == 3) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3714 | locals = PyTuple_GetItem(prog, 2); |
| 3715 | prog = PyTuple_GetItem(prog, 0); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3716 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3717 | if (globals == Py_None) { |
| 3718 | globals = PyEval_GetGlobals(); |
| 3719 | if (locals == Py_None) { |
| 3720 | locals = PyEval_GetLocals(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3721 | plain = 1; |
| 3722 | } |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3723 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3724 | else if (locals == Py_None) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3725 | locals = globals; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3726 | if (!PyString_Check(prog) && |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 3727 | !PyUnicode_Check(prog) && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3728 | !PyCode_Check(prog) && |
| 3729 | !PyFile_Check(prog)) { |
| 3730 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3731 | "exec: arg 1 must be a string, file, or code object"); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3732 | return -1; |
| 3733 | } |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3734 | if (!PyDict_Check(globals)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3735 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3736 | "exec: arg 2 must be a dictionary or None"); |
| 3737 | return -1; |
| 3738 | } |
| 3739 | if (!PyDict_Check(locals)) { |
| 3740 | PyErr_SetString(PyExc_TypeError, |
| 3741 | "exec: arg 3 must be a dictionary or None"); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3742 | return -1; |
| 3743 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3744 | if (PyDict_GetItemString(globals, "__builtins__") == NULL) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3745 | PyDict_SetItemString(globals, "__builtins__", f->f_builtins); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3746 | if (PyCode_Check(prog)) { |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3747 | v = PyEval_EvalCode((PyCodeObject *) prog, globals, locals); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3748 | } |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3749 | else if (PyFile_Check(prog)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3750 | FILE *fp = PyFile_AsFile(prog); |
| 3751 | char *name = PyString_AsString(PyFile_Name(prog)); |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 3752 | if (PyEval_GetNestedScopes()) { |
| 3753 | PyCompilerFlags cf; |
| 3754 | cf.cf_nested_scopes = 1; |
| 3755 | v = PyRun_FileFlags(fp, name, Py_file_input, globals, |
| 3756 | locals, &cf); |
| 3757 | } else { |
| 3758 | v = PyRun_File(fp, name, Py_file_input, globals, |
| 3759 | locals); |
| 3760 | } |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3761 | } |
| 3762 | else { |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 3763 | char *str; |
| 3764 | if (PyString_AsStringAndSize(prog, &str, NULL)) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3765 | return -1; |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 3766 | if (PyEval_GetNestedScopes()) { |
| 3767 | PyCompilerFlags cf; |
| 3768 | cf.cf_nested_scopes = 1; |
| 3769 | v = PyRun_StringFlags(str, Py_file_input, globals, |
| 3770 | locals, &cf); |
| 3771 | } else |
| 3772 | v = PyRun_String(str, Py_file_input, globals, locals); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3773 | } |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3774 | if (plain) |
| 3775 | PyFrame_LocalsToFast(f, 0); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3776 | if (v == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3777 | return -1; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3778 | Py_DECREF(v); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3779 | return 0; |
| 3780 | } |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3781 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3782 | static void |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 3783 | format_exc_check_arg(PyObject *exc, char *format_str, PyObject *obj) |
| 3784 | { |
| 3785 | char *obj_str; |
| 3786 | |
| 3787 | if (!obj) |
| 3788 | return; |
| 3789 | |
| 3790 | obj_str = PyString_AsString(obj); |
| 3791 | if (!obj_str) |
| 3792 | return; |
| 3793 | |
| 3794 | PyErr_Format(exc, format_str, obj_str); |
| 3795 | } |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3796 | |
| 3797 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 3798 | |
| 3799 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3800 | getarray(long a[256]) |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3801 | { |
| 3802 | int i; |
| 3803 | PyObject *l = PyList_New(256); |
| 3804 | if (l == NULL) return NULL; |
| 3805 | for (i = 0; i < 256; i++) { |
| 3806 | PyObject *x = PyInt_FromLong(a[i]); |
| 3807 | if (x == NULL) { |
| 3808 | Py_DECREF(l); |
| 3809 | return NULL; |
| 3810 | } |
| 3811 | PyList_SetItem(l, i, x); |
| 3812 | } |
| 3813 | for (i = 0; i < 256; i++) |
| 3814 | a[i] = 0; |
| 3815 | return l; |
| 3816 | } |
| 3817 | |
| 3818 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3819 | _Py_GetDXProfile(PyObject *self, PyObject *args) |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3820 | { |
| 3821 | #ifndef DXPAIRS |
| 3822 | return getarray(dxp); |
| 3823 | #else |
| 3824 | int i; |
| 3825 | PyObject *l = PyList_New(257); |
| 3826 | if (l == NULL) return NULL; |
| 3827 | for (i = 0; i < 257; i++) { |
| 3828 | PyObject *x = getarray(dxpairs[i]); |
| 3829 | if (x == NULL) { |
| 3830 | Py_DECREF(l); |
| 3831 | return NULL; |
| 3832 | } |
| 3833 | PyList_SetItem(l, i, x); |
| 3834 | } |
| 3835 | return l; |
| 3836 | #endif |
| 3837 | } |
| 3838 | |
| 3839 | #endif |