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 | |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 43 | static char *get_func_name(PyObject *); |
| 44 | static char *get_func_desc(PyObject *); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 45 | static PyObject *call_object(PyObject *, PyObject *, PyObject *); |
| 46 | static PyObject *call_cfunction(PyObject *, PyObject *, PyObject *); |
| 47 | static PyObject *call_instance(PyObject *, PyObject *, PyObject *); |
| 48 | static PyObject *call_method(PyObject *, PyObject *, PyObject *); |
| 49 | static PyObject *call_eval_code2(PyObject *, PyObject *, PyObject *); |
| 50 | static PyObject *fast_function(PyObject *, PyObject ***, int, int, int); |
| 51 | static PyObject *fast_cfunction(PyObject *, PyObject ***, int); |
| 52 | static PyObject *do_call(PyObject *, PyObject ***, int, int); |
| 53 | static PyObject *ext_do_call(PyObject *, PyObject ***, int, int, int); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 54 | static PyObject *update_keyword_args(PyObject *, int, PyObject ***,PyObject *); |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 55 | static PyObject *update_star_args(int, int, PyObject *, PyObject ***); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 56 | static PyObject *load_args(PyObject ***, int); |
| 57 | #define CALL_FLAG_VAR 1 |
| 58 | #define CALL_FLAG_KW 2 |
| 59 | |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 60 | #ifdef LLTRACE |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 61 | static int prtrace(PyObject *, char *); |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 62 | #endif |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 63 | static void call_exc_trace(PyObject **, PyObject**, PyFrameObject *); |
| 64 | static int call_trace(PyObject **, PyObject **, |
| 65 | PyFrameObject *, char *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 66 | static PyObject *loop_subscript(PyObject *, PyObject *); |
| 67 | static PyObject *apply_slice(PyObject *, PyObject *, PyObject *); |
| 68 | static int assign_slice(PyObject *, PyObject *, |
| 69 | PyObject *, PyObject *); |
| 70 | static PyObject *cmp_outcome(int, PyObject *, PyObject *); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 71 | static PyObject *import_from(PyObject *, PyObject *); |
| 72 | static int import_all_from(PyObject *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 73 | static PyObject *build_class(PyObject *, PyObject *, PyObject *); |
| 74 | static int exec_statement(PyFrameObject *, |
| 75 | PyObject *, PyObject *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 76 | static void set_exc_info(PyThreadState *, PyObject *, PyObject *, PyObject *); |
| 77 | static void reset_exc_info(PyThreadState *); |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 78 | static void format_exc_check_arg(PyObject *, char *, PyObject *); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 79 | |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 80 | #define NAME_ERROR_MSG \ |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 81 | "name '%.200s' is not defined" |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 82 | #define GLOBAL_NAME_ERROR_MSG \ |
| 83 | "global name '%.200s' is not defined" |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 84 | #define UNBOUNDLOCAL_ERROR_MSG \ |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 85 | "local variable '%.200s' referenced before assignment" |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 86 | #define UNBOUNDFREE_ERROR_MSG \ |
| 87 | "free variable '%.200s' referenced before assignment" \ |
| 88 | " in enclosing scope" |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 89 | |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 90 | /* Dynamic execution profile */ |
| 91 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 92 | #ifdef DXPAIRS |
| 93 | static long dxpairs[257][256]; |
| 94 | #define dxp dxpairs[256] |
| 95 | #else |
| 96 | static long dxp[256]; |
| 97 | #endif |
| 98 | #endif |
| 99 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 100 | #ifdef WITH_THREAD |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 101 | |
Guido van Rossum | 2571cc8 | 1999-04-07 16:07:23 +0000 | [diff] [blame] | 102 | #ifndef DONT_HAVE_ERRNO_H |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 103 | #include <errno.h> |
Guido van Rossum | 2571cc8 | 1999-04-07 16:07:23 +0000 | [diff] [blame] | 104 | #endif |
Guido van Rossum | 49b5606 | 1998-10-01 20:42:43 +0000 | [diff] [blame] | 105 | #include "pythread.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 106 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 107 | extern int _PyThread_Started; /* Flag for Py_Exit */ |
| 108 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 109 | static PyThread_type_lock interpreter_lock = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 110 | static long main_thread = 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 111 | |
| 112 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 113 | PyEval_InitThreads(void) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 114 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 115 | if (interpreter_lock) |
Sjoerd Mullender | ed59d20 | 1993-01-06 13:36:38 +0000 | [diff] [blame] | 116 | return; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 117 | _PyThread_Started = 1; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 118 | interpreter_lock = PyThread_allocate_lock(); |
| 119 | PyThread_acquire_lock(interpreter_lock, 1); |
| 120 | main_thread = PyThread_get_thread_ident(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 121 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 122 | |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 123 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 124 | PyEval_AcquireLock(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 125 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 126 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 127 | } |
| 128 | |
| 129 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 130 | PyEval_ReleaseLock(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 131 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 132 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 136 | PyEval_AcquireThread(PyThreadState *tstate) |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 137 | { |
| 138 | if (tstate == NULL) |
| 139 | Py_FatalError("PyEval_AcquireThread: NULL new thread state"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 140 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 141 | if (PyThreadState_Swap(tstate) != NULL) |
| 142 | Py_FatalError( |
| 143 | "PyEval_AcquireThread: non-NULL old thread state"); |
| 144 | } |
| 145 | |
| 146 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 147 | PyEval_ReleaseThread(PyThreadState *tstate) |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 148 | { |
| 149 | if (tstate == NULL) |
| 150 | Py_FatalError("PyEval_ReleaseThread: NULL thread state"); |
| 151 | if (PyThreadState_Swap(NULL) != tstate) |
| 152 | Py_FatalError("PyEval_ReleaseThread: wrong thread state"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 153 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 154 | } |
Guido van Rossum | fee3a2d | 2000-08-27 17:34:07 +0000 | [diff] [blame] | 155 | |
| 156 | /* This function is called from PyOS_AfterFork to ensure that newly |
| 157 | created child processes don't hold locks referring to threads which |
| 158 | are not running in the child process. (This could also be done using |
| 159 | pthread_atfork mechanism, at least for the pthreads implementation.) */ |
| 160 | |
| 161 | void |
| 162 | PyEval_ReInitThreads(void) |
| 163 | { |
| 164 | if (!interpreter_lock) |
| 165 | return; |
| 166 | /*XXX Can't use PyThread_free_lock here because it does too |
| 167 | much error-checking. Doing this cleanly would require |
| 168 | adding a new function to each thread_*.h. Instead, just |
| 169 | create a new lock and waste a little bit of memory */ |
| 170 | interpreter_lock = PyThread_allocate_lock(); |
| 171 | PyThread_acquire_lock(interpreter_lock, 1); |
| 172 | main_thread = PyThread_get_thread_ident(); |
| 173 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 174 | #endif |
| 175 | |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 176 | /* Functions save_thread and restore_thread are always defined so |
| 177 | dynamically loaded modules needn't be compiled separately for use |
| 178 | with and without threads: */ |
| 179 | |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame] | 180 | PyThreadState * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 181 | PyEval_SaveThread(void) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 182 | { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 183 | PyThreadState *tstate = PyThreadState_Swap(NULL); |
| 184 | if (tstate == NULL) |
| 185 | Py_FatalError("PyEval_SaveThread: NULL tstate"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 186 | #ifdef WITH_THREAD |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 187 | if (interpreter_lock) |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 188 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 189 | #endif |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 190 | return tstate; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 194 | PyEval_RestoreThread(PyThreadState *tstate) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 195 | { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 196 | if (tstate == NULL) |
| 197 | Py_FatalError("PyEval_RestoreThread: NULL tstate"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 198 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 199 | if (interpreter_lock) { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 200 | int err = errno; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 201 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 202 | errno = err; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 203 | } |
| 204 | #endif |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 205 | PyThreadState_Swap(tstate); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 206 | } |
| 207 | |
| 208 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 209 | /* Mechanism whereby asynchronously executing callbacks (e.g. UNIX |
| 210 | signal handlers or Mac I/O completion routines) can schedule calls |
| 211 | to a function to be called synchronously. |
| 212 | The synchronous function is called with one void* argument. |
| 213 | It should return 0 for success or -1 for failure -- failure should |
| 214 | be accompanied by an exception. |
| 215 | |
| 216 | If registry succeeds, the registry function returns 0; if it fails |
| 217 | (e.g. due to too many pending calls) it returns -1 (without setting |
| 218 | an exception condition). |
| 219 | |
| 220 | Note that because registry may occur from within signal handlers, |
| 221 | or other asynchronous events, calling malloc() is unsafe! |
| 222 | |
| 223 | #ifdef WITH_THREAD |
| 224 | Any thread can schedule pending calls, but only the main thread |
| 225 | will execute them. |
| 226 | #endif |
| 227 | |
| 228 | XXX WARNING! ASYNCHRONOUSLY EXECUTING CODE! |
| 229 | There are two possible race conditions: |
| 230 | (1) nested asynchronous registry calls; |
| 231 | (2) registry calls made while pending calls are being processed. |
| 232 | While (1) is very unlikely, (2) is a real possibility. |
| 233 | The current code is safe against (2), but not against (1). |
| 234 | The safety against (2) is derived from the fact that only one |
| 235 | thread (the main thread) ever takes things out of the queue. |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 236 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 237 | XXX Darn! With the advent of thread state, we should have an array |
| 238 | of pending calls per thread in the thread state! Later... |
| 239 | */ |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 240 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 241 | #define NPENDINGCALLS 32 |
| 242 | static struct { |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 243 | int (*func)(void *); |
| 244 | void *arg; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 245 | } pendingcalls[NPENDINGCALLS]; |
| 246 | static volatile int pendingfirst = 0; |
| 247 | static volatile int pendinglast = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 248 | static volatile int things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 249 | |
| 250 | int |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 251 | Py_AddPendingCall(int (*func)(void *), void *arg) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 252 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 253 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 254 | int i, j; |
| 255 | /* XXX Begin critical section */ |
| 256 | /* XXX If you want this to be safe against nested |
| 257 | XXX asynchronous calls, you'll have to work harder! */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 258 | if (busy) |
| 259 | return -1; |
| 260 | busy = 1; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 261 | i = pendinglast; |
| 262 | j = (i + 1) % NPENDINGCALLS; |
| 263 | if (j == pendingfirst) |
| 264 | return -1; /* Queue full */ |
| 265 | pendingcalls[i].func = func; |
| 266 | pendingcalls[i].arg = arg; |
| 267 | pendinglast = j; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 268 | things_to_do = 1; /* Signal main loop */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 269 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 270 | /* XXX End critical section */ |
| 271 | return 0; |
| 272 | } |
| 273 | |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 274 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 275 | Py_MakePendingCalls(void) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 276 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 277 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 278 | #ifdef WITH_THREAD |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 279 | if (main_thread && PyThread_get_thread_ident() != main_thread) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 280 | return 0; |
| 281 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 282 | if (busy) |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 283 | return 0; |
| 284 | busy = 1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 285 | things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 286 | for (;;) { |
| 287 | int i; |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 288 | int (*func)(void *); |
| 289 | void *arg; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 290 | i = pendingfirst; |
| 291 | if (i == pendinglast) |
| 292 | break; /* Queue empty */ |
| 293 | func = pendingcalls[i].func; |
| 294 | arg = pendingcalls[i].arg; |
| 295 | pendingfirst = (i + 1) % NPENDINGCALLS; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 296 | if (func(arg) < 0) { |
| 297 | busy = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 298 | things_to_do = 1; /* We're not done yet */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 299 | return -1; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 300 | } |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 301 | } |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 302 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 303 | return 0; |
| 304 | } |
| 305 | |
| 306 | |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 307 | /* The interpreter's recursion limit */ |
| 308 | |
Guido van Rossum | 349ff6f | 2000-09-01 01:52:08 +0000 | [diff] [blame] | 309 | static int recursion_limit = 1000; |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 310 | |
Vladimir Marangozov | 7bd25be | 2000-09-01 11:07:19 +0000 | [diff] [blame] | 311 | int |
| 312 | Py_GetRecursionLimit(void) |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 313 | { |
| 314 | return recursion_limit; |
| 315 | } |
| 316 | |
Vladimir Marangozov | 7bd25be | 2000-09-01 11:07:19 +0000 | [diff] [blame] | 317 | void |
| 318 | Py_SetRecursionLimit(int new_limit) |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 319 | { |
| 320 | recursion_limit = new_limit; |
| 321 | } |
| 322 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 323 | /* Status code for main loop (reason for stack unwind) */ |
| 324 | |
| 325 | enum why_code { |
| 326 | WHY_NOT, /* No error */ |
| 327 | WHY_EXCEPTION, /* Exception occurred */ |
| 328 | WHY_RERAISE, /* Exception re-raised by 'finally' */ |
| 329 | WHY_RETURN, /* 'return' statement */ |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 330 | WHY_BREAK, /* 'break' statement */ |
Thomas Wouters | fc93b0a | 2001-02-16 11:52:31 +0000 | [diff] [blame] | 331 | WHY_CONTINUE /* 'continue' statement */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 332 | }; |
| 333 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 334 | static enum why_code do_raise(PyObject *, PyObject *, PyObject *); |
| 335 | static int unpack_sequence(PyObject *, int, PyObject **); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 336 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 337 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 338 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 339 | PyEval_EvalCode(PyCodeObject *co, PyObject *globals, PyObject *locals) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 340 | { |
| 341 | return eval_code2(co, |
| 342 | globals, locals, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 343 | (PyObject **)NULL, 0, |
| 344 | (PyObject **)NULL, 0, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 345 | (PyObject **)NULL, 0, |
| 346 | NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 347 | } |
| 348 | |
| 349 | |
| 350 | /* Interpreter main loop */ |
| 351 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 352 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 353 | eval_code2(PyCodeObject *co, PyObject *globals, PyObject *locals, |
| 354 | PyObject **args, int argcount, PyObject **kws, int kwcount, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 355 | PyObject **defs, int defcount, PyObject *closure) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 356 | { |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 357 | #ifdef DXPAIRS |
| 358 | int lastopcode = 0; |
| 359 | #endif |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 360 | PyObject **stack_pointer; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 361 | register unsigned char *next_instr; |
Moshe Zadka | aa39a7e | 2000-08-07 06:34:45 +0000 | [diff] [blame] | 362 | register int opcode=0; /* Current opcode */ |
| 363 | register int oparg=0; /* Current opcode argument, if any */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 364 | register enum why_code why; /* Reason for block stack unwind */ |
| 365 | register int err; /* Error status -- nonzero if error */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 366 | register PyObject *x; /* Result object -- NULL if error */ |
| 367 | register PyObject *v; /* Temporary objects popped off stack */ |
| 368 | register PyObject *w; |
| 369 | register PyObject *u; |
| 370 | register PyObject *t; |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 371 | register PyObject *stream = NULL; /* for PRINT opcodes */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 372 | register PyFrameObject *f; /* Current frame */ |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 373 | register PyObject **fastlocals, **freevars; |
Guido van Rossum | 014518f | 1998-11-23 21:09:51 +0000 | [diff] [blame] | 374 | PyObject *retval = NULL; /* Return value */ |
Guido van Rossum | 885553e | 1998-12-21 18:33:30 +0000 | [diff] [blame] | 375 | PyThreadState *tstate = PyThreadState_GET(); |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 376 | unsigned char *first_instr; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 377 | #ifdef LLTRACE |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 378 | int lltrace; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 379 | #endif |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 380 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 381 | /* Make it easier to find out where we are with a debugger */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 382 | char *filename = PyString_AsString(co->co_filename); |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 383 | #endif |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 384 | static PyObject *nextstr; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 385 | |
| 386 | /* Code access macros */ |
| 387 | |
| 388 | #define GETCONST(i) Getconst(f, i) |
| 389 | #define GETNAME(i) Getname(f, i) |
| 390 | #define GETNAMEV(i) Getnamev(f, i) |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 391 | #define INSTR_OFFSET() (next_instr - first_instr) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 392 | #define NEXTOP() (*next_instr++) |
| 393 | #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] | 394 | #define JUMPTO(x) (next_instr = first_instr + (x)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 395 | #define JUMPBY(x) (next_instr += (x)) |
| 396 | |
| 397 | /* Stack manipulation macros */ |
| 398 | |
| 399 | #define STACK_LEVEL() (stack_pointer - f->f_valuestack) |
| 400 | #define EMPTY() (STACK_LEVEL() == 0) |
| 401 | #define TOP() (stack_pointer[-1]) |
| 402 | #define BASIC_PUSH(v) (*stack_pointer++ = (v)) |
| 403 | #define BASIC_POP() (*--stack_pointer) |
| 404 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 405 | #ifdef LLTRACE |
| 406 | #define PUSH(v) (BASIC_PUSH(v), lltrace && prtrace(TOP(), "push")) |
| 407 | #define POP() (lltrace && prtrace(TOP(), "pop"), BASIC_POP()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 408 | #else |
| 409 | #define PUSH(v) BASIC_PUSH(v) |
| 410 | #define POP() BASIC_POP() |
| 411 | #endif |
| 412 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 413 | /* Local variable macros */ |
| 414 | |
| 415 | #define GETLOCAL(i) (fastlocals[i]) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 416 | #define SETLOCAL(i, value) do { Py_XDECREF(GETLOCAL(i)); \ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 417 | GETLOCAL(i) = value; } while (0) |
| 418 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 419 | /* Start of code */ |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 420 | if (nextstr == NULL) { |
| 421 | nextstr = PyString_InternFromString("next"); |
| 422 | if (nextstr == NULL) |
| 423 | return NULL; |
| 424 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 425 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 426 | #ifdef USE_STACKCHECK |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 427 | if (tstate->recursion_depth%10 == 0 && PyOS_CheckStack()) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 428 | PyErr_SetString(PyExc_MemoryError, "Stack overflow"); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 429 | return NULL; |
| 430 | } |
| 431 | #endif |
| 432 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 433 | if (globals == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 434 | PyErr_SetString(PyExc_SystemError, "eval_code2: NULL globals"); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 435 | return NULL; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 436 | } |
| 437 | |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 438 | #ifdef LLTRACE |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 439 | lltrace = PyDict_GetItemString(globals, "__lltrace__") != NULL; |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 440 | #endif |
| 441 | |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 442 | f = PyFrame_New(tstate, /*back*/ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 443 | co, /*code*/ |
Jeremy Hylton | 30c9f39 | 2001-03-13 01:58:22 +0000 | [diff] [blame] | 444 | globals, locals); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 445 | if (f == NULL) |
| 446 | return NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 447 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 448 | tstate->frame = f; |
Guido van Rossum | deb0c5e | 1997-01-27 23:42:36 +0000 | [diff] [blame] | 449 | fastlocals = f->f_localsplus; |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 450 | freevars = f->f_localsplus + f->f_nlocals; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 451 | |
| 452 | if (co->co_argcount > 0 || |
| 453 | co->co_flags & (CO_VARARGS | CO_VARKEYWORDS)) { |
| 454 | int i; |
| 455 | int n = argcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 456 | PyObject *kwdict = NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 457 | if (co->co_flags & CO_VARKEYWORDS) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 458 | kwdict = PyDict_New(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 459 | if (kwdict == NULL) |
| 460 | goto fail; |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 461 | i = co->co_argcount; |
| 462 | if (co->co_flags & CO_VARARGS) |
| 463 | i++; |
| 464 | SETLOCAL(i, kwdict); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 465 | } |
| 466 | if (argcount > co->co_argcount) { |
| 467 | if (!(co->co_flags & CO_VARARGS)) { |
Guido van Rossum | df9db1e | 1997-11-19 16:05:40 +0000 | [diff] [blame] | 468 | PyErr_Format(PyExc_TypeError, |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 469 | "%.200s() takes %s %d " |
| 470 | "%sargument%s (%d given)", |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 471 | PyString_AsString(co->co_name), |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 472 | defcount ? "at most" : "exactly", |
| 473 | co->co_argcount, |
| 474 | kwcount ? "non-keyword " : "", |
| 475 | co->co_argcount == 1 ? "" : "s", |
| 476 | argcount); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 477 | goto fail; |
| 478 | } |
| 479 | n = co->co_argcount; |
| 480 | } |
| 481 | for (i = 0; i < n; i++) { |
| 482 | x = args[i]; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 483 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 484 | SETLOCAL(i, x); |
| 485 | } |
| 486 | if (co->co_flags & CO_VARARGS) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 487 | u = PyTuple_New(argcount - n); |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 488 | if (u == NULL) |
| 489 | goto fail; |
| 490 | SETLOCAL(co->co_argcount, u); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 491 | for (i = n; i < argcount; i++) { |
| 492 | x = args[i]; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 493 | Py_INCREF(x); |
| 494 | PyTuple_SET_ITEM(u, i-n, x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 495 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 496 | } |
| 497 | for (i = 0; i < kwcount; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 498 | PyObject *keyword = kws[2*i]; |
| 499 | PyObject *value = kws[2*i + 1]; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 500 | int j; |
Guido van Rossum | 25da5be | 1999-10-26 00:12:20 +0000 | [diff] [blame] | 501 | if (keyword == NULL || !PyString_Check(keyword)) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 502 | PyErr_Format(PyExc_TypeError, |
| 503 | "%.200s() keywords must be strings", |
| 504 | PyString_AsString(co->co_name)); |
Guido van Rossum | 25da5be | 1999-10-26 00:12:20 +0000 | [diff] [blame] | 505 | goto fail; |
| 506 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 507 | /* XXX slow -- speed up using dictionary? */ |
| 508 | for (j = 0; j < co->co_argcount; j++) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 509 | PyObject *nm = PyTuple_GET_ITEM( |
| 510 | co->co_varnames, j); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 511 | int cmp = PyObject_RichCompareBool( |
| 512 | keyword, nm, Py_EQ); |
| 513 | if (cmp > 0) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 514 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 515 | else if (cmp < 0) |
| 516 | goto fail; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 517 | } |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 518 | /* Check errors from Compare */ |
| 519 | if (PyErr_Occurred()) |
| 520 | goto fail; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 521 | if (j >= co->co_argcount) { |
| 522 | if (kwdict == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 523 | PyErr_Format(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 524 | "%.200s() got an unexpected " |
| 525 | "keyword argument '%.400s'", |
| 526 | PyString_AsString(co->co_name), |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 527 | PyString_AsString(keyword)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 528 | goto fail; |
| 529 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 530 | PyDict_SetItem(kwdict, keyword, value); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 531 | } |
| 532 | else { |
| 533 | if (GETLOCAL(j) != NULL) { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 534 | PyErr_Format(PyExc_TypeError, |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 535 | "%.200s() got multiple " |
| 536 | "values for keyword " |
| 537 | "argument '%.400s'", |
| 538 | PyString_AsString(co->co_name), |
| 539 | PyString_AsString(keyword)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 540 | goto fail; |
| 541 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 542 | Py_INCREF(value); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 543 | SETLOCAL(j, value); |
| 544 | } |
| 545 | } |
| 546 | if (argcount < co->co_argcount) { |
| 547 | int m = co->co_argcount - defcount; |
| 548 | for (i = argcount; i < m; i++) { |
| 549 | if (GETLOCAL(i) == NULL) { |
Guido van Rossum | df9db1e | 1997-11-19 16:05:40 +0000 | [diff] [blame] | 550 | PyErr_Format(PyExc_TypeError, |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 551 | "%.200s() takes %s %d " |
| 552 | "%sargument%s (%d given)", |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 553 | PyString_AsString(co->co_name), |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 554 | ((co->co_flags & CO_VARARGS) || |
| 555 | defcount) ? "at least" |
| 556 | : "exactly", |
| 557 | m, kwcount ? "non-keyword " : "", |
| 558 | m == 1 ? "" : "s", i); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 559 | goto fail; |
| 560 | } |
| 561 | } |
| 562 | if (n > m) |
| 563 | i = n - m; |
| 564 | else |
| 565 | i = 0; |
| 566 | for (; i < defcount; i++) { |
| 567 | if (GETLOCAL(m+i) == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 568 | PyObject *def = defs[i]; |
| 569 | Py_INCREF(def); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 570 | SETLOCAL(m+i, def); |
| 571 | } |
| 572 | } |
| 573 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 574 | } |
| 575 | else { |
| 576 | if (argcount > 0 || kwcount > 0) { |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 577 | PyErr_Format(PyExc_TypeError, |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 578 | "%.200s() takes no arguments (%d given)", |
| 579 | PyString_AsString(co->co_name), |
| 580 | argcount + kwcount); |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 581 | goto fail; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 582 | } |
| 583 | } |
Jeremy Hylton | 220ae7c | 2001-03-21 16:43:47 +0000 | [diff] [blame] | 584 | /* Allocate and initialize storage for cell vars, and copy free |
| 585 | vars into frame. This isn't too efficient right now. */ |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 586 | if (f->f_ncells) { |
Jeremy Hylton | 220ae7c | 2001-03-21 16:43:47 +0000 | [diff] [blame] | 587 | int i = 0, j = 0, nargs, found; |
| 588 | char *cellname, *argname; |
| 589 | PyObject *c; |
| 590 | |
| 591 | nargs = co->co_argcount; |
| 592 | if (co->co_flags & CO_VARARGS) |
| 593 | nargs++; |
| 594 | if (co->co_flags & CO_VARKEYWORDS) |
| 595 | nargs++; |
| 596 | |
| 597 | /* Check for cells that shadow args */ |
| 598 | for (i = 0; i < f->f_ncells && j < nargs; ++i) { |
| 599 | cellname = PyString_AS_STRING( |
| 600 | PyTuple_GET_ITEM(co->co_cellvars, i)); |
| 601 | found = 0; |
| 602 | while (j < nargs) { |
| 603 | argname = PyString_AS_STRING( |
| 604 | PyTuple_GET_ITEM(co->co_varnames, j)); |
| 605 | if (strcmp(cellname, argname) == 0) { |
| 606 | c = PyCell_New(GETLOCAL(j)); |
| 607 | if (c == NULL) |
| 608 | goto fail; |
| 609 | GETLOCAL(f->f_nlocals + i) = c; |
| 610 | found = 1; |
| 611 | break; |
| 612 | } |
| 613 | j++; |
| 614 | } |
| 615 | if (found == 0) { |
| 616 | c = PyCell_New(NULL); |
| 617 | if (c == NULL) |
| 618 | goto fail; |
| 619 | SETLOCAL(f->f_nlocals + i, c); |
| 620 | } |
| 621 | } |
| 622 | /* Initialize any that are left */ |
| 623 | while (i < f->f_ncells) { |
| 624 | c = PyCell_New(NULL); |
| 625 | if (c == NULL) |
| 626 | goto fail; |
| 627 | SETLOCAL(f->f_nlocals + i, c); |
| 628 | i++; |
| 629 | } |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 630 | } |
| 631 | if (f->f_nfreevars) { |
| 632 | int i; |
Jeremy Hylton | 30c9f39 | 2001-03-13 01:58:22 +0000 | [diff] [blame] | 633 | for (i = 0; i < f->f_nfreevars; ++i) { |
| 634 | PyObject *o = PyTuple_GET_ITEM(closure, i); |
| 635 | Py_INCREF(o); |
| 636 | freevars[f->f_ncells + i] = o; |
| 637 | } |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 638 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 639 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 640 | if (tstate->sys_tracefunc != NULL) { |
| 641 | /* tstate->sys_tracefunc, if defined, is a function that |
| 642 | will be called on *every* entry to a code block. |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 643 | Its return value, if not None, is a function that |
| 644 | will be called at the start of each executed line |
| 645 | of code. (Actually, the function must return |
| 646 | itself in order to continue tracing.) |
| 647 | The trace functions are called with three arguments: |
| 648 | a pointer to the current frame, a string indicating |
| 649 | why the function is called, and an argument which |
| 650 | depends on the situation. The global trace function |
| 651 | (sys.trace) is also called whenever an exception |
| 652 | is detected. */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 653 | if (call_trace(&tstate->sys_tracefunc, |
| 654 | &f->f_trace, f, "call", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 655 | Py_None/*XXX how to compute arguments now?*/)) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 656 | /* Trace function raised an error */ |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 657 | goto fail; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 658 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 659 | } |
| 660 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 661 | if (tstate->sys_profilefunc != NULL) { |
| 662 | /* Similar for sys_profilefunc, except it needn't return |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 663 | itself and isn't called for "line" events */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 664 | if (call_trace(&tstate->sys_profilefunc, |
| 665 | (PyObject**)0, f, "call", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 666 | Py_None/*XXX*/)) { |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 667 | goto fail; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 668 | } |
| 669 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 670 | |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 671 | if (++tstate->recursion_depth > recursion_limit) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 672 | --tstate->recursion_depth; |
| 673 | PyErr_SetString(PyExc_RuntimeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 674 | "maximum recursion depth exceeded"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 675 | tstate->frame = f->f_back; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 676 | Py_DECREF(f); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 677 | return NULL; |
| 678 | } |
| 679 | |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 680 | _PyCode_GETCODEPTR(co, &first_instr); |
| 681 | next_instr = first_instr; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 682 | stack_pointer = f->f_valuestack; |
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 | why = WHY_NOT; |
| 685 | err = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 686 | x = Py_None; /* Not a reference, just anything non-NULL */ |
Fred Drake | 48fba73 | 2000-10-11 13:54:07 +0000 | [diff] [blame] | 687 | w = NULL; |
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 | for (;;) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 690 | /* Do periodic things. Doing this every time through |
| 691 | the loop would add too much overhead, so we do it |
| 692 | only every Nth instruction. We also do it if |
| 693 | ``things_to_do'' is set, i.e. when an asynchronous |
| 694 | event needs attention (e.g. a signal handler or |
| 695 | async I/O handler); see Py_AddPendingCall() and |
| 696 | Py_MakePendingCalls() above. */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 697 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 698 | if (things_to_do || --tstate->ticker < 0) { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 699 | tstate->ticker = tstate->interp->checkinterval; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 700 | if (things_to_do) { |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 701 | if (Py_MakePendingCalls() < 0) { |
| 702 | why = WHY_EXCEPTION; |
| 703 | goto on_error; |
| 704 | } |
| 705 | } |
Guido van Rossum | df0d00e | 1997-05-20 15:57:49 +0000 | [diff] [blame] | 706 | #if !defined(HAVE_SIGNAL_H) || defined(macintosh) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 707 | /* If we have true signals, the signal handler |
| 708 | will call Py_AddPendingCall() so we don't |
| 709 | have to call sigcheck(). On the Mac and |
| 710 | DOS, alas, we have to call it. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 711 | if (PyErr_CheckSignals()) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 712 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 713 | goto on_error; |
| 714 | } |
Guido van Rossum | 70d4478 | 1997-01-21 06:15:24 +0000 | [diff] [blame] | 715 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 716 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 717 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 718 | if (interpreter_lock) { |
| 719 | /* Give another thread a chance */ |
| 720 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 721 | if (PyThreadState_Swap(NULL) != tstate) |
| 722 | Py_FatalError("ceval: tstate mix-up"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 723 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 724 | |
| 725 | /* Other threads may run now */ |
| 726 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 727 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 728 | if (PyThreadState_Swap(tstate) != NULL) |
| 729 | Py_FatalError("ceval: orphan tstate"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 730 | } |
| 731 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 732 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 733 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 734 | /* Extract opcode and argument */ |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 735 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 736 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 737 | f->f_lasti = INSTR_OFFSET(); |
| 738 | #endif |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 739 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 740 | opcode = NEXTOP(); |
| 741 | if (HAS_ARG(opcode)) |
| 742 | oparg = NEXTARG(); |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 743 | dispatch_opcode: |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 744 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 745 | #ifdef DXPAIRS |
| 746 | dxpairs[lastopcode][opcode]++; |
| 747 | lastopcode = opcode; |
| 748 | #endif |
| 749 | dxp[opcode]++; |
| 750 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 751 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 752 | #ifdef LLTRACE |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 753 | /* Instruction tracing */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 754 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 755 | if (lltrace) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 756 | if (HAS_ARG(opcode)) { |
| 757 | printf("%d: %d, %d\n", |
| 758 | (int) (INSTR_OFFSET() - 3), |
| 759 | opcode, oparg); |
| 760 | } |
| 761 | else { |
| 762 | printf("%d: %d\n", |
| 763 | (int) (INSTR_OFFSET() - 1), opcode); |
| 764 | } |
| 765 | } |
| 766 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 767 | /* Main switch on opcode */ |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 768 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 769 | switch (opcode) { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 770 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 771 | /* BEWARE! |
| 772 | It is essential that any operation that fails sets either |
| 773 | x to NULL, err to nonzero, or why to anything but WHY_NOT, |
| 774 | and that no operation that succeeds does this! */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 775 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 776 | /* case STOP_CODE: this is an error! */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 777 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 778 | case POP_TOP: |
| 779 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 780 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 781 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 782 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 783 | case ROT_TWO: |
| 784 | v = POP(); |
| 785 | w = POP(); |
| 786 | PUSH(v); |
| 787 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 788 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 789 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 790 | case ROT_THREE: |
| 791 | v = POP(); |
| 792 | w = POP(); |
| 793 | x = POP(); |
| 794 | PUSH(v); |
| 795 | PUSH(x); |
| 796 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 797 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 798 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 799 | case ROT_FOUR: |
| 800 | u = POP(); |
| 801 | v = POP(); |
| 802 | w = POP(); |
| 803 | x = POP(); |
| 804 | PUSH(u); |
| 805 | PUSH(x); |
| 806 | PUSH(w); |
| 807 | PUSH(v); |
| 808 | continue; |
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 DUP_TOP: |
| 811 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 812 | Py_INCREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 813 | PUSH(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 814 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 815 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 816 | case DUP_TOPX: |
| 817 | switch (oparg) { |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 818 | case 1: |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 819 | x = TOP(); |
| 820 | Py_INCREF(x); |
| 821 | PUSH(x); |
| 822 | continue; |
| 823 | case 2: |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 824 | x = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 825 | Py_INCREF(x); |
| 826 | w = TOP(); |
| 827 | Py_INCREF(w); |
| 828 | PUSH(x); |
| 829 | PUSH(w); |
| 830 | PUSH(x); |
| 831 | continue; |
| 832 | case 3: |
| 833 | x = POP(); |
| 834 | Py_INCREF(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 835 | w = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 836 | Py_INCREF(w); |
| 837 | v = TOP(); |
| 838 | Py_INCREF(v); |
| 839 | PUSH(w); |
| 840 | PUSH(x); |
| 841 | PUSH(v); |
| 842 | PUSH(w); |
| 843 | PUSH(x); |
| 844 | continue; |
| 845 | case 4: |
| 846 | x = POP(); |
| 847 | Py_INCREF(x); |
| 848 | w = POP(); |
| 849 | Py_INCREF(w); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 850 | v = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 851 | Py_INCREF(v); |
| 852 | u = TOP(); |
| 853 | Py_INCREF(u); |
| 854 | PUSH(v); |
| 855 | PUSH(w); |
| 856 | PUSH(x); |
| 857 | PUSH(u); |
| 858 | PUSH(v); |
| 859 | PUSH(w); |
| 860 | PUSH(x); |
| 861 | continue; |
| 862 | case 5: |
| 863 | x = POP(); |
| 864 | Py_INCREF(x); |
| 865 | w = POP(); |
| 866 | Py_INCREF(w); |
| 867 | v = POP(); |
| 868 | Py_INCREF(v); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 869 | u = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 870 | Py_INCREF(u); |
| 871 | t = TOP(); |
| 872 | Py_INCREF(t); |
| 873 | PUSH(u); |
| 874 | PUSH(v); |
| 875 | PUSH(w); |
| 876 | PUSH(x); |
| 877 | PUSH(t); |
| 878 | PUSH(u); |
| 879 | PUSH(v); |
| 880 | PUSH(w); |
| 881 | PUSH(x); |
| 882 | continue; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 883 | default: |
Thomas Wouters | 0be483f | 2000-10-11 23:26:11 +0000 | [diff] [blame] | 884 | Py_FatalError("invalid argument to DUP_TOPX" |
| 885 | " (bytecode corruption?)"); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 886 | } |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 887 | break; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 888 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 889 | case UNARY_POSITIVE: |
| 890 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 891 | x = PyNumber_Positive(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 892 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 893 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 894 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 895 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 896 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 897 | case UNARY_NEGATIVE: |
| 898 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 899 | x = PyNumber_Negative(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 900 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 901 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 902 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 903 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 904 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 905 | case UNARY_NOT: |
| 906 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 907 | err = PyObject_IsTrue(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 908 | Py_DECREF(v); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 909 | if (err == 0) { |
| 910 | Py_INCREF(Py_True); |
| 911 | PUSH(Py_True); |
| 912 | continue; |
| 913 | } |
| 914 | else if (err > 0) { |
| 915 | Py_INCREF(Py_False); |
| 916 | PUSH(Py_False); |
| 917 | err = 0; |
| 918 | continue; |
| 919 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 920 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 921 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 922 | case UNARY_CONVERT: |
| 923 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 924 | x = PyObject_Repr(v); |
| 925 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 926 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 927 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 928 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 929 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 930 | case UNARY_INVERT: |
| 931 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 932 | x = PyNumber_Invert(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 933 | Py_DECREF(v); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 934 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 935 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 936 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 937 | |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 938 | case BINARY_POWER: |
| 939 | w = POP(); |
| 940 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 941 | x = PyNumber_Power(v, w, Py_None); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 942 | Py_DECREF(v); |
| 943 | Py_DECREF(w); |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 944 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 945 | if (x != NULL) continue; |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 946 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 947 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 948 | case BINARY_MULTIPLY: |
| 949 | w = POP(); |
| 950 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 951 | x = PyNumber_Multiply(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 952 | Py_DECREF(v); |
| 953 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 954 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 955 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 956 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 957 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 958 | case BINARY_DIVIDE: |
| 959 | w = POP(); |
| 960 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 961 | x = PyNumber_Divide(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 | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 968 | case BINARY_MODULO: |
| 969 | w = POP(); |
| 970 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 971 | x = PyNumber_Remainder(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 | 374a922 | 1991-04-04 10:40:29 +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 | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 976 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 977 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 978 | case BINARY_ADD: |
| 979 | w = POP(); |
| 980 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 981 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 982 | /* INLINE: int + int */ |
| 983 | register long a, b, i; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 984 | a = PyInt_AS_LONG(v); |
| 985 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 986 | i = a + b; |
| 987 | if ((i^a) < 0 && (i^b) < 0) { |
| 988 | PyErr_SetString(PyExc_OverflowError, |
| 989 | "integer addition"); |
| 990 | x = NULL; |
| 991 | } |
| 992 | else |
| 993 | x = PyInt_FromLong(i); |
| 994 | } |
| 995 | else |
| 996 | x = PyNumber_Add(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 997 | Py_DECREF(v); |
| 998 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 999 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1000 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1001 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1002 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1003 | case BINARY_SUBTRACT: |
| 1004 | w = POP(); |
| 1005 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1006 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1007 | /* INLINE: int - int */ |
| 1008 | register long a, b, i; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 1009 | a = PyInt_AS_LONG(v); |
| 1010 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1011 | i = a - b; |
| 1012 | if ((i^a) < 0 && (i^~b) < 0) { |
| 1013 | PyErr_SetString(PyExc_OverflowError, |
| 1014 | "integer subtraction"); |
| 1015 | x = NULL; |
| 1016 | } |
| 1017 | else |
| 1018 | x = PyInt_FromLong(i); |
| 1019 | } |
| 1020 | else |
| 1021 | x = PyNumber_Subtract(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1022 | Py_DECREF(v); |
| 1023 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1024 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1025 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1026 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1027 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1028 | case BINARY_SUBSCR: |
| 1029 | w = POP(); |
| 1030 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1031 | if (PyList_Check(v) && PyInt_Check(w)) { |
| 1032 | /* INLINE: list[int] */ |
| 1033 | long i = PyInt_AsLong(w); |
| 1034 | if (i < 0) |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 1035 | i += PyList_GET_SIZE(v); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1036 | if (i < 0 || |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 1037 | i >= PyList_GET_SIZE(v)) { |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1038 | PyErr_SetString(PyExc_IndexError, |
| 1039 | "list index out of range"); |
| 1040 | x = NULL; |
| 1041 | } |
| 1042 | else { |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 1043 | x = PyList_GET_ITEM(v, i); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1044 | Py_INCREF(x); |
| 1045 | } |
| 1046 | } |
| 1047 | else |
| 1048 | x = PyObject_GetItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1049 | Py_DECREF(v); |
| 1050 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1051 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1052 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1053 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1054 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1055 | case BINARY_LSHIFT: |
| 1056 | w = POP(); |
| 1057 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1058 | x = PyNumber_Lshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1059 | Py_DECREF(v); |
| 1060 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1061 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1062 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1063 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1064 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1065 | case BINARY_RSHIFT: |
| 1066 | w = POP(); |
| 1067 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1068 | x = PyNumber_Rshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1069 | Py_DECREF(v); |
| 1070 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1071 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1072 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1073 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1074 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1075 | case BINARY_AND: |
| 1076 | w = POP(); |
| 1077 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1078 | x = PyNumber_And(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1079 | Py_DECREF(v); |
| 1080 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1081 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1082 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1083 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1084 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1085 | case BINARY_XOR: |
| 1086 | w = POP(); |
| 1087 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1088 | x = PyNumber_Xor(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1089 | Py_DECREF(v); |
| 1090 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1091 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1092 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1093 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1094 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1095 | case BINARY_OR: |
| 1096 | w = POP(); |
| 1097 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1098 | x = PyNumber_Or(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1099 | Py_DECREF(v); |
| 1100 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1101 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1102 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1103 | break; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1104 | |
| 1105 | case INPLACE_POWER: |
| 1106 | w = POP(); |
| 1107 | v = POP(); |
| 1108 | x = PyNumber_InPlacePower(v, w, Py_None); |
| 1109 | Py_DECREF(v); |
| 1110 | Py_DECREF(w); |
| 1111 | PUSH(x); |
| 1112 | if (x != NULL) continue; |
| 1113 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1114 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1115 | case INPLACE_MULTIPLY: |
| 1116 | w = POP(); |
| 1117 | v = POP(); |
| 1118 | x = PyNumber_InPlaceMultiply(v, w); |
| 1119 | Py_DECREF(v); |
| 1120 | Py_DECREF(w); |
| 1121 | PUSH(x); |
| 1122 | if (x != NULL) continue; |
| 1123 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1124 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1125 | case INPLACE_DIVIDE: |
| 1126 | w = POP(); |
| 1127 | v = POP(); |
| 1128 | x = PyNumber_InPlaceDivide(v, w); |
| 1129 | Py_DECREF(v); |
| 1130 | Py_DECREF(w); |
| 1131 | PUSH(x); |
| 1132 | if (x != NULL) continue; |
| 1133 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1134 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1135 | case INPLACE_MODULO: |
| 1136 | w = POP(); |
| 1137 | v = POP(); |
| 1138 | x = PyNumber_InPlaceRemainder(v, w); |
| 1139 | Py_DECREF(v); |
| 1140 | Py_DECREF(w); |
| 1141 | PUSH(x); |
| 1142 | if (x != NULL) continue; |
| 1143 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1144 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1145 | case INPLACE_ADD: |
| 1146 | w = POP(); |
| 1147 | v = POP(); |
| 1148 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1149 | /* INLINE: int + int */ |
| 1150 | register long a, b, i; |
| 1151 | a = PyInt_AS_LONG(v); |
| 1152 | b = PyInt_AS_LONG(w); |
| 1153 | i = a + b; |
| 1154 | if ((i^a) < 0 && (i^b) < 0) { |
| 1155 | PyErr_SetString(PyExc_OverflowError, |
| 1156 | "integer addition"); |
| 1157 | x = NULL; |
| 1158 | } |
| 1159 | else |
| 1160 | x = PyInt_FromLong(i); |
| 1161 | } |
| 1162 | else |
| 1163 | x = PyNumber_InPlaceAdd(v, w); |
| 1164 | Py_DECREF(v); |
| 1165 | Py_DECREF(w); |
| 1166 | PUSH(x); |
| 1167 | if (x != NULL) continue; |
| 1168 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1169 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1170 | case INPLACE_SUBTRACT: |
| 1171 | w = POP(); |
| 1172 | v = POP(); |
| 1173 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1174 | /* INLINE: int - int */ |
| 1175 | register long a, b, i; |
| 1176 | a = PyInt_AS_LONG(v); |
| 1177 | b = PyInt_AS_LONG(w); |
| 1178 | i = a - b; |
| 1179 | if ((i^a) < 0 && (i^~b) < 0) { |
| 1180 | PyErr_SetString(PyExc_OverflowError, |
| 1181 | "integer subtraction"); |
| 1182 | x = NULL; |
| 1183 | } |
| 1184 | else |
| 1185 | x = PyInt_FromLong(i); |
| 1186 | } |
| 1187 | else |
| 1188 | x = PyNumber_InPlaceSubtract(v, w); |
| 1189 | Py_DECREF(v); |
| 1190 | Py_DECREF(w); |
| 1191 | PUSH(x); |
| 1192 | if (x != NULL) continue; |
| 1193 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1194 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1195 | case INPLACE_LSHIFT: |
| 1196 | w = POP(); |
| 1197 | v = POP(); |
| 1198 | x = PyNumber_InPlaceLshift(v, w); |
| 1199 | Py_DECREF(v); |
| 1200 | Py_DECREF(w); |
| 1201 | PUSH(x); |
| 1202 | if (x != NULL) continue; |
| 1203 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1204 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1205 | case INPLACE_RSHIFT: |
| 1206 | w = POP(); |
| 1207 | v = POP(); |
| 1208 | x = PyNumber_InPlaceRshift(v, w); |
| 1209 | Py_DECREF(v); |
| 1210 | Py_DECREF(w); |
| 1211 | PUSH(x); |
| 1212 | if (x != NULL) continue; |
| 1213 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1214 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1215 | case INPLACE_AND: |
| 1216 | w = POP(); |
| 1217 | v = POP(); |
| 1218 | x = PyNumber_InPlaceAnd(v, w); |
| 1219 | Py_DECREF(v); |
| 1220 | Py_DECREF(w); |
| 1221 | PUSH(x); |
| 1222 | if (x != NULL) continue; |
| 1223 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1224 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1225 | case INPLACE_XOR: |
| 1226 | w = POP(); |
| 1227 | v = POP(); |
| 1228 | x = PyNumber_InPlaceXor(v, w); |
| 1229 | Py_DECREF(v); |
| 1230 | Py_DECREF(w); |
| 1231 | PUSH(x); |
| 1232 | if (x != NULL) continue; |
| 1233 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1234 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1235 | case INPLACE_OR: |
| 1236 | w = POP(); |
| 1237 | v = POP(); |
| 1238 | x = PyNumber_InPlaceOr(v, w); |
| 1239 | Py_DECREF(v); |
| 1240 | Py_DECREF(w); |
| 1241 | PUSH(x); |
| 1242 | if (x != NULL) continue; |
| 1243 | break; |
| 1244 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1245 | case SLICE+0: |
| 1246 | case SLICE+1: |
| 1247 | case SLICE+2: |
| 1248 | case SLICE+3: |
| 1249 | if ((opcode-SLICE) & 2) |
| 1250 | w = POP(); |
| 1251 | else |
| 1252 | w = NULL; |
| 1253 | if ((opcode-SLICE) & 1) |
| 1254 | v = POP(); |
| 1255 | else |
| 1256 | v = NULL; |
| 1257 | u = POP(); |
| 1258 | x = apply_slice(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1259 | Py_DECREF(u); |
| 1260 | Py_XDECREF(v); |
| 1261 | Py_XDECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1262 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1263 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1264 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1265 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1266 | case STORE_SLICE+0: |
| 1267 | case STORE_SLICE+1: |
| 1268 | case STORE_SLICE+2: |
| 1269 | case STORE_SLICE+3: |
| 1270 | if ((opcode-STORE_SLICE) & 2) |
| 1271 | w = POP(); |
| 1272 | else |
| 1273 | w = NULL; |
| 1274 | if ((opcode-STORE_SLICE) & 1) |
| 1275 | v = POP(); |
| 1276 | else |
| 1277 | v = NULL; |
| 1278 | u = POP(); |
| 1279 | t = POP(); |
| 1280 | err = assign_slice(u, v, w, t); /* u[v:w] = t */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1281 | Py_DECREF(t); |
| 1282 | Py_DECREF(u); |
| 1283 | Py_XDECREF(v); |
| 1284 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1285 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1286 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1287 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1288 | case DELETE_SLICE+0: |
| 1289 | case DELETE_SLICE+1: |
| 1290 | case DELETE_SLICE+2: |
| 1291 | case DELETE_SLICE+3: |
| 1292 | if ((opcode-DELETE_SLICE) & 2) |
| 1293 | w = POP(); |
| 1294 | else |
| 1295 | w = NULL; |
| 1296 | if ((opcode-DELETE_SLICE) & 1) |
| 1297 | v = POP(); |
| 1298 | else |
| 1299 | v = NULL; |
| 1300 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1301 | err = assign_slice(u, v, w, (PyObject *)NULL); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1302 | /* del u[v:w] */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1303 | Py_DECREF(u); |
| 1304 | Py_XDECREF(v); |
| 1305 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1306 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1307 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1308 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1309 | case STORE_SUBSCR: |
| 1310 | w = POP(); |
| 1311 | v = POP(); |
| 1312 | u = POP(); |
| 1313 | /* v[w] = u */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1314 | err = PyObject_SetItem(v, w, u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1315 | Py_DECREF(u); |
| 1316 | Py_DECREF(v); |
| 1317 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1318 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1319 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1320 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1321 | case DELETE_SUBSCR: |
| 1322 | w = POP(); |
| 1323 | v = POP(); |
| 1324 | /* del v[w] */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1325 | err = PyObject_DelItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1326 | Py_DECREF(v); |
| 1327 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1328 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1329 | break; |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1330 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1331 | case PRINT_EXPR: |
| 1332 | v = POP(); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1333 | w = PySys_GetObject("displayhook"); |
| 1334 | if (w == NULL) { |
| 1335 | PyErr_SetString(PyExc_RuntimeError, |
| 1336 | "lost sys.displayhook"); |
| 1337 | err = -1; |
Moshe Zadka | f5df383 | 2001-01-11 11:55:37 +0000 | [diff] [blame] | 1338 | x = NULL; |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1339 | } |
| 1340 | if (err == 0) { |
| 1341 | x = Py_BuildValue("(O)", v); |
| 1342 | if (x == NULL) |
| 1343 | err = -1; |
| 1344 | } |
| 1345 | if (err == 0) { |
| 1346 | w = PyEval_CallObject(w, x); |
Moshe Zadka | f5df383 | 2001-01-11 11:55:37 +0000 | [diff] [blame] | 1347 | Py_XDECREF(w); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1348 | if (w == NULL) |
| 1349 | err = -1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1350 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1351 | Py_DECREF(v); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1352 | Py_XDECREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1353 | break; |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1354 | |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1355 | case PRINT_ITEM_TO: |
| 1356 | w = stream = POP(); |
| 1357 | /* fall through to PRINT_ITEM */ |
| 1358 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1359 | case PRINT_ITEM: |
| 1360 | v = POP(); |
Barry Warsaw | 093abe0 | 2000-08-29 04:56:13 +0000 | [diff] [blame] | 1361 | if (stream == NULL || stream == Py_None) { |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1362 | w = PySys_GetObject("stdout"); |
| 1363 | if (w == NULL) { |
| 1364 | PyErr_SetString(PyExc_RuntimeError, |
| 1365 | "lost sys.stdout"); |
| 1366 | err = -1; |
| 1367 | } |
Guido van Rossum | 8f18320 | 1997-12-31 05:53:15 +0000 | [diff] [blame] | 1368 | } |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1369 | if (w != NULL && PyFile_SoftSpace(w, 1)) |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 1370 | err = PyFile_WriteString(" ", w); |
| 1371 | if (err == 0) |
| 1372 | err = PyFile_WriteObject(v, w, Py_PRINT_RAW); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1373 | if (err == 0 && PyString_Check(v)) { |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1374 | /* XXX move into writeobject() ? */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1375 | char *s = PyString_AsString(v); |
| 1376 | int len = PyString_Size(v); |
Guido van Rossum | 7f7f274 | 1995-02-10 17:01:56 +0000 | [diff] [blame] | 1377 | if (len > 0 && |
| 1378 | isspace(Py_CHARMASK(s[len-1])) && |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1379 | s[len-1] != ' ') |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1380 | PyFile_SoftSpace(w, 0); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1381 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1382 | Py_DECREF(v); |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1383 | Py_XDECREF(stream); |
| 1384 | stream = NULL; |
| 1385 | if (err == 0) |
| 1386 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1387 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1388 | |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1389 | case PRINT_NEWLINE_TO: |
| 1390 | w = stream = POP(); |
| 1391 | /* fall through to PRINT_NEWLINE */ |
| 1392 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1393 | case PRINT_NEWLINE: |
Barry Warsaw | 093abe0 | 2000-08-29 04:56:13 +0000 | [diff] [blame] | 1394 | if (stream == NULL || stream == Py_None) { |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1395 | w = PySys_GetObject("stdout"); |
| 1396 | if (w == NULL) |
| 1397 | PyErr_SetString(PyExc_RuntimeError, |
| 1398 | "lost sys.stdout"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1399 | } |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1400 | if (w != NULL) { |
| 1401 | err = PyFile_WriteString("\n", w); |
| 1402 | if (err == 0) |
| 1403 | PyFile_SoftSpace(w, 0); |
| 1404 | } |
| 1405 | Py_XDECREF(stream); |
| 1406 | stream = NULL; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1407 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1408 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1409 | |
| 1410 | #ifdef CASE_TOO_BIG |
| 1411 | default: switch (opcode) { |
| 1412 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1413 | case BREAK_LOOP: |
| 1414 | why = WHY_BREAK; |
| 1415 | break; |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 1416 | |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 1417 | case CONTINUE_LOOP: |
| 1418 | retval = PyInt_FromLong(oparg); |
| 1419 | why = WHY_CONTINUE; |
| 1420 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1421 | |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1422 | case RAISE_VARARGS: |
| 1423 | u = v = w = NULL; |
| 1424 | switch (oparg) { |
| 1425 | case 3: |
| 1426 | u = POP(); /* traceback */ |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1427 | /* Fallthrough */ |
| 1428 | case 2: |
| 1429 | v = POP(); /* value */ |
| 1430 | /* Fallthrough */ |
| 1431 | case 1: |
| 1432 | w = POP(); /* exc */ |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 1433 | case 0: /* Fallthrough */ |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1434 | why = do_raise(w, v, u); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1435 | break; |
| 1436 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1437 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1438 | "bad RAISE_VARARGS oparg"); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1439 | why = WHY_EXCEPTION; |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1440 | break; |
| 1441 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1442 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1443 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1444 | case LOAD_LOCALS: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1445 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1446 | PyErr_SetString(PyExc_SystemError, |
| 1447 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1448 | break; |
| 1449 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1450 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1451 | PUSH(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1452 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1453 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1454 | case RETURN_VALUE: |
| 1455 | retval = POP(); |
| 1456 | why = WHY_RETURN; |
| 1457 | break; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1458 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1459 | case EXEC_STMT: |
| 1460 | w = POP(); |
| 1461 | v = POP(); |
| 1462 | u = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1463 | err = exec_statement(f, u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1464 | Py_DECREF(u); |
| 1465 | Py_DECREF(v); |
| 1466 | Py_DECREF(w); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1467 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1468 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1469 | case POP_BLOCK: |
| 1470 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1471 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1472 | while (STACK_LEVEL() > b->b_level) { |
| 1473 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1474 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1475 | } |
| 1476 | } |
| 1477 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1478 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1479 | case END_FINALLY: |
| 1480 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1481 | if (PyInt_Check(v)) { |
| 1482 | why = (enum why_code) PyInt_AsLong(v); |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 1483 | if (why == WHY_RETURN || |
| 1484 | why == CONTINUE_LOOP) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1485 | retval = POP(); |
| 1486 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1487 | else if (PyString_Check(v) || PyClass_Check(v)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1488 | w = POP(); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1489 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1490 | PyErr_Restore(v, w, u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1491 | why = WHY_RERAISE; |
Guido van Rossum | 0db1ef9 | 1995-07-28 23:06:00 +0000 | [diff] [blame] | 1492 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1493 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1494 | else if (v != Py_None) { |
| 1495 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1496 | "'finally' pops bad exception"); |
| 1497 | why = WHY_EXCEPTION; |
| 1498 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1499 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1500 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1501 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1502 | case BUILD_CLASS: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1503 | u = POP(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1504 | v = POP(); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1505 | w = POP(); |
| 1506 | x = build_class(u, v, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1507 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1508 | Py_DECREF(u); |
| 1509 | Py_DECREF(v); |
| 1510 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1511 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1512 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1513 | case STORE_NAME: |
| 1514 | w = GETNAMEV(oparg); |
| 1515 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1516 | if ((x = f->f_locals) == NULL) { |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1517 | PyErr_Format(PyExc_SystemError, |
| 1518 | "no locals found when storing %s", |
Jeremy Hylton | 483638c | 2001-02-01 20:20:45 +0000 | [diff] [blame] | 1519 | PyObject_REPR(w)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1520 | break; |
| 1521 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1522 | err = PyDict_SetItem(x, w, v); |
| 1523 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1524 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1525 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1526 | case DELETE_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1527 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1528 | if ((x = f->f_locals) == NULL) { |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1529 | PyErr_Format(PyExc_SystemError, |
| 1530 | "no locals when deleting %s", |
Jeremy Hylton | 483638c | 2001-02-01 20:20:45 +0000 | [diff] [blame] | 1531 | PyObject_REPR(w)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1532 | break; |
| 1533 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1534 | if ((err = PyDict_DelItem(x, w)) != 0) |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1535 | format_exc_check_arg(PyExc_NameError, |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1536 | NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1537 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1538 | |
Thomas Wouters | 0be5aab | 2000-08-11 22:15:52 +0000 | [diff] [blame] | 1539 | case UNPACK_SEQUENCE: |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1540 | v = POP(); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1541 | if (PyTuple_Check(v)) { |
| 1542 | if (PyTuple_Size(v) != oparg) { |
| 1543 | PyErr_SetString(PyExc_ValueError, |
| 1544 | "unpack tuple of wrong size"); |
| 1545 | why = WHY_EXCEPTION; |
| 1546 | } |
| 1547 | else { |
| 1548 | for (; --oparg >= 0; ) { |
| 1549 | w = PyTuple_GET_ITEM(v, oparg); |
| 1550 | Py_INCREF(w); |
| 1551 | PUSH(w); |
| 1552 | } |
| 1553 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1554 | } |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1555 | else if (PyList_Check(v)) { |
| 1556 | if (PyList_Size(v) != oparg) { |
| 1557 | PyErr_SetString(PyExc_ValueError, |
| 1558 | "unpack list of wrong size"); |
| 1559 | why = WHY_EXCEPTION; |
| 1560 | } |
| 1561 | else { |
| 1562 | for (; --oparg >= 0; ) { |
| 1563 | w = PyList_GET_ITEM(v, oparg); |
| 1564 | Py_INCREF(w); |
| 1565 | PUSH(w); |
| 1566 | } |
| 1567 | } |
| 1568 | } |
| 1569 | else if (PySequence_Check(v)) { |
| 1570 | if (unpack_sequence(v, oparg, |
| 1571 | stack_pointer + oparg)) |
| 1572 | stack_pointer += oparg; |
| 1573 | else |
| 1574 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1575 | } |
| 1576 | else { |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1577 | PyErr_SetString(PyExc_TypeError, |
| 1578 | "unpack non-sequence"); |
| 1579 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1580 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1581 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1582 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1583 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1584 | case STORE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1585 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1586 | v = POP(); |
| 1587 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1588 | err = PyObject_SetAttr(v, w, u); /* v.w = u */ |
| 1589 | Py_DECREF(v); |
| 1590 | Py_DECREF(u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1591 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1592 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1593 | case DELETE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1594 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1595 | v = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1596 | err = PyObject_SetAttr(v, w, (PyObject *)NULL); |
| 1597 | /* del v.w */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1598 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1599 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1600 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1601 | case STORE_GLOBAL: |
| 1602 | w = GETNAMEV(oparg); |
| 1603 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1604 | err = PyDict_SetItem(f->f_globals, w, v); |
| 1605 | Py_DECREF(v); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1606 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1607 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1608 | case DELETE_GLOBAL: |
| 1609 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1610 | if ((err = PyDict_DelItem(f->f_globals, w)) != 0) |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1611 | format_exc_check_arg( |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1612 | PyExc_NameError, GLOBAL_NAME_ERROR_MSG, w); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1613 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1614 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1615 | case LOAD_CONST: |
| 1616 | x = GETCONST(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1617 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1618 | PUSH(x); |
| 1619 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1620 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1621 | case LOAD_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1622 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1623 | if ((x = f->f_locals) == NULL) { |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1624 | PyErr_Format(PyExc_SystemError, |
| 1625 | "no locals when loading %s", |
Jeremy Hylton | 483638c | 2001-02-01 20:20:45 +0000 | [diff] [blame] | 1626 | PyObject_REPR(w)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1627 | break; |
| 1628 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1629 | x = PyDict_GetItem(x, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1630 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1631 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1632 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1633 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1634 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1635 | format_exc_check_arg( |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1636 | PyExc_NameError, |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1637 | NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1638 | break; |
| 1639 | } |
| 1640 | } |
| 1641 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1642 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1643 | PUSH(x); |
| 1644 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1645 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1646 | case LOAD_GLOBAL: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1647 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1648 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1649 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1650 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1651 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1652 | format_exc_check_arg( |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1653 | PyExc_NameError, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1654 | GLOBAL_NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1655 | break; |
| 1656 | } |
| 1657 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1658 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1659 | PUSH(x); |
| 1660 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1661 | |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1662 | case LOAD_FAST: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1663 | x = GETLOCAL(oparg); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1664 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1665 | format_exc_check_arg( |
| 1666 | PyExc_UnboundLocalError, |
| 1667 | UNBOUNDLOCAL_ERROR_MSG, |
| 1668 | PyTuple_GetItem(co->co_varnames, oparg) |
| 1669 | ); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1670 | break; |
| 1671 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1672 | Py_INCREF(x); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1673 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1674 | if (x != NULL) continue; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1675 | break; |
| 1676 | |
| 1677 | case STORE_FAST: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1678 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1679 | SETLOCAL(oparg, v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1680 | continue; |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1681 | |
| 1682 | case DELETE_FAST: |
Guido van Rossum | 2e4c899 | 1998-05-12 20:27:36 +0000 | [diff] [blame] | 1683 | x = GETLOCAL(oparg); |
| 1684 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1685 | format_exc_check_arg( |
| 1686 | PyExc_UnboundLocalError, |
| 1687 | UNBOUNDLOCAL_ERROR_MSG, |
| 1688 | PyTuple_GetItem(co->co_varnames, oparg) |
| 1689 | ); |
Guido van Rossum | 2e4c899 | 1998-05-12 20:27:36 +0000 | [diff] [blame] | 1690 | break; |
| 1691 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1692 | SETLOCAL(oparg, NULL); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1693 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1694 | |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1695 | case LOAD_CLOSURE: |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1696 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1697 | Py_INCREF(x); |
| 1698 | PUSH(x); |
| 1699 | break; |
| 1700 | |
| 1701 | case LOAD_DEREF: |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1702 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1703 | w = PyCell_Get(x); |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1704 | if (w == NULL) { |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 1705 | if (oparg < f->f_ncells) { |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1706 | v = PyTuple_GetItem(co->co_cellvars, |
| 1707 | oparg); |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 1708 | format_exc_check_arg( |
| 1709 | PyExc_UnboundLocalError, |
| 1710 | UNBOUNDLOCAL_ERROR_MSG, |
| 1711 | v); |
| 1712 | } else { |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1713 | v = PyTuple_GetItem( |
| 1714 | co->co_freevars, |
| 1715 | oparg - f->f_ncells); |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 1716 | format_exc_check_arg( |
| 1717 | PyExc_NameError, |
| 1718 | UNBOUNDFREE_ERROR_MSG, |
| 1719 | v); |
| 1720 | } |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1721 | err = -1; |
| 1722 | break; |
| 1723 | } |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1724 | PUSH(w); |
| 1725 | break; |
| 1726 | |
| 1727 | case STORE_DEREF: |
| 1728 | w = POP(); |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1729 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1730 | PyCell_Set(x, w); |
Jeremy Hylton | 30c9f39 | 2001-03-13 01:58:22 +0000 | [diff] [blame] | 1731 | Py_DECREF(w); |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1732 | continue; |
| 1733 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1734 | case BUILD_TUPLE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1735 | x = PyTuple_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1736 | if (x != NULL) { |
| 1737 | for (; --oparg >= 0;) { |
| 1738 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1739 | PyTuple_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1740 | } |
| 1741 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1742 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1743 | } |
| 1744 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1745 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1746 | case BUILD_LIST: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1747 | x = PyList_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1748 | if (x != NULL) { |
| 1749 | for (; --oparg >= 0;) { |
| 1750 | w = POP(); |
Guido van Rossum | 5053efc | 1998-08-04 15:27:50 +0000 | [diff] [blame] | 1751 | PyList_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1752 | } |
| 1753 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1754 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1755 | } |
| 1756 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1757 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1758 | case BUILD_MAP: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1759 | x = PyDict_New(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1760 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1761 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1762 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1763 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1764 | case LOAD_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1765 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1766 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1767 | x = PyObject_GetAttr(v, w); |
| 1768 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1769 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1770 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1771 | break; |
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 COMPARE_OP: |
| 1774 | w = POP(); |
| 1775 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1776 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1777 | /* INLINE: cmp(int, int) */ |
| 1778 | register long a, b; |
| 1779 | register int res; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 1780 | a = PyInt_AS_LONG(v); |
| 1781 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1782 | switch (oparg) { |
| 1783 | case LT: res = a < b; break; |
| 1784 | case LE: res = a <= b; break; |
| 1785 | case EQ: res = a == b; break; |
| 1786 | case NE: res = a != b; break; |
| 1787 | case GT: res = a > b; break; |
| 1788 | case GE: res = a >= b; break; |
| 1789 | case IS: res = v == w; break; |
| 1790 | case IS_NOT: res = v != w; break; |
| 1791 | default: goto slow_compare; |
| 1792 | } |
| 1793 | x = res ? Py_True : Py_False; |
| 1794 | Py_INCREF(x); |
| 1795 | } |
| 1796 | else { |
| 1797 | slow_compare: |
| 1798 | x = cmp_outcome(oparg, v, w); |
| 1799 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1800 | Py_DECREF(v); |
| 1801 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1802 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1803 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1804 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1805 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1806 | case IMPORT_NAME: |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1807 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1808 | x = PyDict_GetItemString(f->f_builtins, "__import__"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1809 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1810 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1811 | "__import__ not found"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1812 | break; |
| 1813 | } |
Thomas Wouters | dd13e4f | 2000-08-27 20:31:27 +0000 | [diff] [blame] | 1814 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1815 | w = Py_BuildValue("(OOOO)", |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1816 | w, |
| 1817 | f->f_globals, |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1818 | f->f_locals == NULL ? |
| 1819 | Py_None : f->f_locals, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1820 | u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1821 | Py_DECREF(u); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1822 | if (w == NULL) { |
| 1823 | x = NULL; |
| 1824 | break; |
| 1825 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1826 | x = PyEval_CallObject(x, w); |
| 1827 | Py_DECREF(w); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1828 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1829 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1830 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1831 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1832 | case IMPORT_STAR: |
| 1833 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1834 | PyFrame_FastToLocals(f); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1835 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1836 | PyErr_SetString(PyExc_SystemError, |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1837 | "no locals found during 'import *'"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1838 | break; |
| 1839 | } |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1840 | err = import_all_from(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1841 | PyFrame_LocalsToFast(f, 0); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1842 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1843 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1844 | break; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1845 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1846 | case IMPORT_FROM: |
| 1847 | w = GETNAMEV(oparg); |
| 1848 | v = TOP(); |
| 1849 | x = import_from(v, w); |
| 1850 | PUSH(x); |
| 1851 | if (x != NULL) continue; |
| 1852 | break; |
| 1853 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1854 | case JUMP_FORWARD: |
| 1855 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1856 | continue; |
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 JUMP_IF_FALSE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1859 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1860 | if (err > 0) |
| 1861 | err = 0; |
| 1862 | else if (err == 0) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1863 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1864 | else |
| 1865 | break; |
| 1866 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1867 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1868 | case JUMP_IF_TRUE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1869 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1870 | if (err > 0) { |
| 1871 | err = 0; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1872 | JUMPBY(oparg); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1873 | } |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1874 | else if (err == 0) |
| 1875 | ; |
| 1876 | else |
| 1877 | break; |
| 1878 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1879 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1880 | case JUMP_ABSOLUTE: |
| 1881 | JUMPTO(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1882 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1883 | |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 1884 | case GET_ITER: |
| 1885 | /* before: [obj]; after [getiter(obj)] */ |
| 1886 | v = POP(); |
| 1887 | x = PyObject_GetIter(v); |
| 1888 | Py_DECREF(v); |
| 1889 | if (x != NULL) { |
| 1890 | w = x; |
| 1891 | x = PyObject_GetAttr(w, nextstr); |
| 1892 | Py_DECREF(w); |
| 1893 | if (x != NULL) { |
| 1894 | PUSH(x); |
| 1895 | continue; |
| 1896 | } |
| 1897 | } |
| 1898 | break; |
| 1899 | |
| 1900 | case FOR_ITER: |
| 1901 | /* before: [iter]; after: [iter, iter()] *or* [] */ |
| 1902 | v = TOP(); |
| 1903 | x = PyObject_CallObject(v, NULL); |
| 1904 | if (x == NULL) { |
| 1905 | if (PyErr_ExceptionMatches( |
| 1906 | PyExc_StopIteration)) |
| 1907 | { |
| 1908 | PyErr_Clear(); |
| 1909 | x = v = POP(); |
| 1910 | Py_DECREF(v); |
| 1911 | JUMPBY(oparg); |
| 1912 | continue; |
| 1913 | } |
| 1914 | break; |
| 1915 | } |
| 1916 | PUSH(x); |
| 1917 | continue; |
| 1918 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1919 | case FOR_LOOP: |
| 1920 | /* for v in s: ... |
| 1921 | On entry: stack contains s, i. |
| 1922 | On exit: stack contains s, i+1, s[i]; |
| 1923 | but if loop exhausted: |
| 1924 | s, i are popped, and we jump */ |
| 1925 | w = POP(); /* Loop index */ |
| 1926 | v = POP(); /* Sequence object */ |
| 1927 | u = loop_subscript(v, w); |
| 1928 | if (u != NULL) { |
| 1929 | PUSH(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1930 | x = PyInt_FromLong(PyInt_AsLong(w)+1); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1931 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1932 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1933 | PUSH(u); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1934 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1935 | } |
| 1936 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1937 | Py_DECREF(v); |
| 1938 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1939 | /* A NULL can mean "s exhausted" |
| 1940 | but also an error: */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1941 | if (PyErr_Occurred()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1942 | why = WHY_EXCEPTION; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1943 | else { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1944 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1945 | continue; |
| 1946 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1947 | } |
| 1948 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1949 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1950 | case SETUP_LOOP: |
| 1951 | case SETUP_EXCEPT: |
| 1952 | case SETUP_FINALLY: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1953 | PyFrame_BlockSetup(f, opcode, INSTR_OFFSET() + oparg, |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 1954 | STACK_LEVEL()); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1955 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1956 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1957 | case SET_LINENO: |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1958 | #ifdef LLTRACE |
| 1959 | if (lltrace) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1960 | printf("--- %s:%d \n", filename, oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1961 | #endif |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1962 | f->f_lineno = oparg; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1963 | if (f->f_trace == NULL) |
| 1964 | continue; |
| 1965 | /* Trace each line of code reached */ |
| 1966 | f->f_lasti = INSTR_OFFSET(); |
| 1967 | err = call_trace(&f->f_trace, &f->f_trace, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1968 | f, "line", Py_None); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1969 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1970 | |
| 1971 | case CALL_FUNCTION: |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1972 | { |
| 1973 | int na = oparg & 0xff; |
| 1974 | int nk = (oparg>>8) & 0xff; |
| 1975 | int n = na + 2 * nk; |
| 1976 | PyObject **pfunc = stack_pointer - n - 1; |
| 1977 | PyObject *func = *pfunc; |
| 1978 | f->f_lasti = INSTR_OFFSET() - 3; /* For tracing */ |
| 1979 | |
| 1980 | /* Always dispatch PyCFunction first, because |
| 1981 | these are presumed to be the most frequent |
| 1982 | callable object. |
| 1983 | */ |
| 1984 | if (PyCFunction_Check(func)) { |
| 1985 | if (PyCFunction_GET_FLAGS(func) == 0) { |
| 1986 | x = fast_cfunction(func, |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1987 | &stack_pointer, na); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1988 | } else { |
| 1989 | x = do_call(func, &stack_pointer, |
| 1990 | na, nk); |
| 1991 | } |
| 1992 | } else { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1993 | if (PyMethod_Check(func) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1994 | && PyMethod_GET_SELF(func) != NULL) { |
| 1995 | /* optimize access to bound methods */ |
| 1996 | PyObject *self = PyMethod_GET_SELF(func); |
| 1997 | Py_INCREF(self); |
| 1998 | func = PyMethod_GET_FUNCTION(func); |
| 1999 | Py_INCREF(func); |
| 2000 | Py_DECREF(*pfunc); |
| 2001 | *pfunc = self; |
| 2002 | na++; |
| 2003 | n++; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2004 | } else |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2005 | Py_INCREF(func); |
| 2006 | if (PyFunction_Check(func)) { |
| 2007 | x = fast_function(func, &stack_pointer, |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2008 | n, na, nk); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2009 | } else { |
| 2010 | x = do_call(func, &stack_pointer, |
| 2011 | na, nk); |
| 2012 | } |
| 2013 | Py_DECREF(func); |
| 2014 | } |
| 2015 | |
| 2016 | while (stack_pointer > pfunc) { |
| 2017 | w = POP(); |
| 2018 | Py_DECREF(w); |
| 2019 | } |
| 2020 | PUSH(x); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2021 | if (x != NULL) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2022 | continue; |
| 2023 | break; |
| 2024 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2025 | |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2026 | case CALL_FUNCTION_VAR: |
| 2027 | case CALL_FUNCTION_KW: |
| 2028 | case CALL_FUNCTION_VAR_KW: |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2029 | { |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2030 | int na = oparg & 0xff; |
| 2031 | int nk = (oparg>>8) & 0xff; |
| 2032 | int flags = (opcode - CALL_FUNCTION) & 3; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2033 | int n = na + 2 * nk; |
| 2034 | PyObject **pfunc, *func; |
| 2035 | if (flags & CALL_FLAG_VAR) |
| 2036 | n++; |
| 2037 | if (flags & CALL_FLAG_KW) |
| 2038 | n++; |
| 2039 | pfunc = stack_pointer - n - 1; |
| 2040 | func = *pfunc; |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2041 | f->f_lasti = INSTR_OFFSET() - 3; /* For tracing */ |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2042 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2043 | if (PyMethod_Check(func) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2044 | && PyMethod_GET_SELF(func) != NULL) { |
| 2045 | PyObject *self = PyMethod_GET_SELF(func); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2046 | Py_INCREF(self); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2047 | func = PyMethod_GET_FUNCTION(func); |
| 2048 | Py_INCREF(func); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2049 | Py_DECREF(*pfunc); |
| 2050 | *pfunc = self; |
| 2051 | na++; |
| 2052 | n++; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2053 | } else |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2054 | Py_INCREF(func); |
| 2055 | x = ext_do_call(func, &stack_pointer, flags, na, nk); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2056 | Py_DECREF(func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2057 | |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2058 | while (stack_pointer > pfunc) { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2059 | w = POP(); |
| 2060 | Py_DECREF(w); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2061 | } |
| 2062 | PUSH(x); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2063 | if (x != NULL) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2064 | continue; |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2065 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2066 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2067 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2068 | case MAKE_FUNCTION: |
| 2069 | v = POP(); /* code object */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2070 | x = PyFunction_New(v, f->f_globals); |
| 2071 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2072 | /* XXX Maybe this should be a separate opcode? */ |
| 2073 | if (x != NULL && oparg > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2074 | v = PyTuple_New(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2075 | if (v == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2076 | Py_DECREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2077 | x = NULL; |
| 2078 | break; |
| 2079 | } |
| 2080 | while (--oparg >= 0) { |
| 2081 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2082 | PyTuple_SET_ITEM(v, oparg, w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2083 | } |
| 2084 | err = PyFunction_SetDefaults(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2085 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2086 | } |
| 2087 | PUSH(x); |
| 2088 | break; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2089 | |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 2090 | case MAKE_CLOSURE: |
| 2091 | { |
| 2092 | int nfree; |
| 2093 | v = POP(); /* code object */ |
| 2094 | x = PyFunction_New(v, f->f_globals); |
| 2095 | nfree = PyTuple_GET_SIZE(((PyCodeObject *)v)->co_freevars); |
| 2096 | Py_DECREF(v); |
| 2097 | /* XXX Maybe this should be a separate opcode? */ |
| 2098 | if (x != NULL && nfree > 0) { |
| 2099 | v = PyTuple_New(nfree); |
| 2100 | if (v == NULL) { |
| 2101 | Py_DECREF(x); |
| 2102 | x = NULL; |
| 2103 | break; |
| 2104 | } |
| 2105 | while (--nfree >= 0) { |
| 2106 | w = POP(); |
| 2107 | PyTuple_SET_ITEM(v, nfree, w); |
| 2108 | } |
| 2109 | err = PyFunction_SetClosure(x, v); |
| 2110 | Py_DECREF(v); |
| 2111 | } |
| 2112 | if (x != NULL && oparg > 0) { |
| 2113 | v = PyTuple_New(oparg); |
| 2114 | if (v == NULL) { |
| 2115 | Py_DECREF(x); |
| 2116 | x = NULL; |
| 2117 | break; |
| 2118 | } |
| 2119 | while (--oparg >= 0) { |
| 2120 | w = POP(); |
| 2121 | PyTuple_SET_ITEM(v, oparg, w); |
| 2122 | } |
| 2123 | err = PyFunction_SetDefaults(x, v); |
| 2124 | Py_DECREF(v); |
| 2125 | } |
| 2126 | PUSH(x); |
| 2127 | break; |
| 2128 | } |
| 2129 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2130 | case BUILD_SLICE: |
| 2131 | if (oparg == 3) |
| 2132 | w = POP(); |
| 2133 | else |
| 2134 | w = NULL; |
| 2135 | v = POP(); |
| 2136 | u = POP(); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 2137 | x = PySlice_New(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2138 | Py_DECREF(u); |
| 2139 | Py_DECREF(v); |
| 2140 | Py_XDECREF(w); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2141 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 2142 | if (x != NULL) continue; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2143 | break; |
| 2144 | |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 2145 | case EXTENDED_ARG: |
| 2146 | opcode = NEXTOP(); |
| 2147 | oparg = oparg<<16 | NEXTARG(); |
| 2148 | goto dispatch_opcode; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2149 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2150 | default: |
| 2151 | fprintf(stderr, |
| 2152 | "XXX lineno: %d, opcode: %d\n", |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2153 | f->f_lineno, opcode); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2154 | PyErr_SetString(PyExc_SystemError, "unknown opcode"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2155 | why = WHY_EXCEPTION; |
| 2156 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2157 | |
| 2158 | #ifdef CASE_TOO_BIG |
| 2159 | } |
| 2160 | #endif |
| 2161 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2162 | } /* switch */ |
| 2163 | |
| 2164 | on_error: |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2165 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2166 | /* Quickly continue if no error occurred */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2167 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2168 | if (why == WHY_NOT) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2169 | if (err == 0 && x != NULL) { |
| 2170 | #ifdef CHECKEXC |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2171 | /* This check is expensive! */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2172 | if (PyErr_Occurred()) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2173 | fprintf(stderr, |
| 2174 | "XXX undetected error\n"); |
| 2175 | else |
| 2176 | #endif |
| 2177 | continue; /* Normal, fast path */ |
| 2178 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2179 | why = WHY_EXCEPTION; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2180 | x = Py_None; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2181 | err = 0; |
| 2182 | } |
| 2183 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2184 | /* Double-check exception status */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2185 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2186 | if (why == WHY_EXCEPTION || why == WHY_RERAISE) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2187 | if (!PyErr_Occurred()) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2188 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2189 | "error return without exception set"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2190 | why = WHY_EXCEPTION; |
| 2191 | } |
| 2192 | } |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2193 | #ifdef CHECKEXC |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2194 | else { |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2195 | /* This check is expensive! */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2196 | if (PyErr_Occurred()) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2197 | fprintf(stderr, |
| 2198 | "XXX undetected error (why=%d)\n", |
| 2199 | why); |
| 2200 | why = WHY_EXCEPTION; |
| 2201 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2202 | } |
| 2203 | #endif |
| 2204 | |
| 2205 | /* Log traceback info if this is a real exception */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2206 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2207 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2208 | f->f_lasti = INSTR_OFFSET() - 1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2209 | if (HAS_ARG(opcode)) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2210 | f->f_lasti -= 2; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2211 | PyTraceBack_Here(f); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2212 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2213 | if (f->f_trace) |
| 2214 | call_exc_trace(&f->f_trace, &f->f_trace, f); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2215 | if (tstate->sys_profilefunc) |
| 2216 | call_exc_trace(&tstate->sys_profilefunc, |
| 2217 | (PyObject**)0, f); |
Guido van Rossum | 014518f | 1998-11-23 21:09:51 +0000 | [diff] [blame] | 2218 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2219 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2220 | /* For the rest, treat WHY_RERAISE as WHY_EXCEPTION */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2221 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2222 | if (why == WHY_RERAISE) |
| 2223 | why = WHY_EXCEPTION; |
| 2224 | |
| 2225 | /* Unwind stacks if a (pseudo) exception occurred */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2226 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2227 | while (why != WHY_NOT && f->f_iblock > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2228 | PyTryBlock *b = PyFrame_BlockPop(f); |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2229 | |
| 2230 | if (b->b_type == SETUP_LOOP && why == WHY_CONTINUE) { |
| 2231 | /* For a continue inside a try block, |
| 2232 | don't pop the block for the loop. */ |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 2233 | PyFrame_BlockSetup(f, b->b_type, b->b_level, |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2234 | b->b_handler); |
| 2235 | why = WHY_NOT; |
| 2236 | JUMPTO(PyInt_AS_LONG(retval)); |
| 2237 | Py_DECREF(retval); |
| 2238 | break; |
| 2239 | } |
| 2240 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2241 | while (STACK_LEVEL() > b->b_level) { |
| 2242 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2243 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2244 | } |
| 2245 | if (b->b_type == SETUP_LOOP && why == WHY_BREAK) { |
| 2246 | why = WHY_NOT; |
| 2247 | JUMPTO(b->b_handler); |
| 2248 | break; |
| 2249 | } |
| 2250 | if (b->b_type == SETUP_FINALLY || |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2251 | (b->b_type == SETUP_EXCEPT && |
| 2252 | why == WHY_EXCEPTION)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2253 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2254 | PyObject *exc, *val, *tb; |
| 2255 | PyErr_Fetch(&exc, &val, &tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2256 | if (val == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2257 | val = Py_None; |
| 2258 | Py_INCREF(val); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2259 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2260 | /* Make the raw exception data |
| 2261 | available to the handler, |
| 2262 | so a program can emulate the |
| 2263 | Python main loop. Don't do |
| 2264 | this for 'finally'. */ |
| 2265 | if (b->b_type == SETUP_EXCEPT) { |
Barry Warsaw | eaedc7c | 1997-08-28 22:36:40 +0000 | [diff] [blame] | 2266 | PyErr_NormalizeException( |
| 2267 | &exc, &val, &tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2268 | set_exc_info(tstate, |
| 2269 | exc, val, tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2270 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2271 | PUSH(tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2272 | PUSH(val); |
| 2273 | PUSH(exc); |
| 2274 | } |
| 2275 | else { |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2276 | if (why == WHY_RETURN || |
| 2277 | why == CONTINUE_LOOP) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2278 | PUSH(retval); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2279 | v = PyInt_FromLong((long)why); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2280 | PUSH(v); |
| 2281 | } |
| 2282 | why = WHY_NOT; |
| 2283 | JUMPTO(b->b_handler); |
| 2284 | break; |
| 2285 | } |
| 2286 | } /* unwind stack */ |
| 2287 | |
| 2288 | /* End the loop if we still have an error (or return) */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2289 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2290 | if (why != WHY_NOT) |
| 2291 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2292 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2293 | } /* main loop */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2294 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2295 | /* Pop remaining stack entries */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2296 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2297 | while (!EMPTY()) { |
| 2298 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2299 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2300 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2301 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2302 | if (why != WHY_RETURN) |
| 2303 | retval = NULL; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2304 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2305 | if (f->f_trace) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2306 | if (why == WHY_RETURN) { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2307 | if (call_trace(&f->f_trace, &f->f_trace, f, |
| 2308 | "return", retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2309 | Py_XDECREF(retval); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2310 | retval = NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2311 | why = WHY_EXCEPTION; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2312 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2313 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2314 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2315 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2316 | if (tstate->sys_profilefunc && why == WHY_RETURN) { |
| 2317 | if (call_trace(&tstate->sys_profilefunc, (PyObject**)0, |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2318 | f, "return", retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2319 | Py_XDECREF(retval); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2320 | retval = NULL; |
| 2321 | why = WHY_EXCEPTION; |
| 2322 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2323 | } |
Guido van Rossum | a424013 | 1997-01-21 21:18:36 +0000 | [diff] [blame] | 2324 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2325 | reset_exc_info(tstate); |
| 2326 | |
| 2327 | --tstate->recursion_depth; |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 2328 | |
| 2329 | fail: /* Jump here from prelude on failure */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2330 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2331 | /* Restore previous frame and release the current one */ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2332 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2333 | tstate->frame = f->f_back; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2334 | Py_DECREF(f); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2335 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2336 | return retval; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2337 | } |
| 2338 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2339 | static void |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2340 | set_exc_info(PyThreadState *tstate, |
| 2341 | PyObject *type, PyObject *value, PyObject *tb) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2342 | { |
| 2343 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2344 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2345 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2346 | frame = tstate->frame; |
| 2347 | if (frame->f_exc_type == NULL) { |
| 2348 | /* This frame didn't catch an exception before */ |
| 2349 | /* Save previous exception of this thread in this frame */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2350 | if (tstate->exc_type == NULL) { |
| 2351 | Py_INCREF(Py_None); |
| 2352 | tstate->exc_type = Py_None; |
| 2353 | } |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2354 | tmp_type = frame->f_exc_type; |
| 2355 | tmp_value = frame->f_exc_value; |
| 2356 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2357 | Py_XINCREF(tstate->exc_type); |
| 2358 | Py_XINCREF(tstate->exc_value); |
| 2359 | Py_XINCREF(tstate->exc_traceback); |
| 2360 | frame->f_exc_type = tstate->exc_type; |
| 2361 | frame->f_exc_value = tstate->exc_value; |
| 2362 | frame->f_exc_traceback = tstate->exc_traceback; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2363 | Py_XDECREF(tmp_type); |
| 2364 | Py_XDECREF(tmp_value); |
| 2365 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2366 | } |
| 2367 | /* Set new exception for this thread */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2368 | tmp_type = tstate->exc_type; |
| 2369 | tmp_value = tstate->exc_value; |
| 2370 | tmp_tb = tstate->exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2371 | Py_XINCREF(type); |
| 2372 | Py_XINCREF(value); |
| 2373 | Py_XINCREF(tb); |
| 2374 | tstate->exc_type = type; |
| 2375 | tstate->exc_value = value; |
| 2376 | tstate->exc_traceback = tb; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2377 | Py_XDECREF(tmp_type); |
| 2378 | Py_XDECREF(tmp_value); |
| 2379 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2380 | /* For b/w compatibility */ |
| 2381 | PySys_SetObject("exc_type", type); |
| 2382 | PySys_SetObject("exc_value", value); |
| 2383 | PySys_SetObject("exc_traceback", tb); |
| 2384 | } |
| 2385 | |
| 2386 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2387 | reset_exc_info(PyThreadState *tstate) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2388 | { |
| 2389 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2390 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2391 | frame = tstate->frame; |
| 2392 | if (frame->f_exc_type != NULL) { |
| 2393 | /* This frame caught an exception */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2394 | tmp_type = tstate->exc_type; |
| 2395 | tmp_value = tstate->exc_value; |
| 2396 | tmp_tb = tstate->exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2397 | Py_XINCREF(frame->f_exc_type); |
| 2398 | Py_XINCREF(frame->f_exc_value); |
| 2399 | Py_XINCREF(frame->f_exc_traceback); |
| 2400 | tstate->exc_type = frame->f_exc_type; |
| 2401 | tstate->exc_value = frame->f_exc_value; |
| 2402 | tstate->exc_traceback = frame->f_exc_traceback; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2403 | Py_XDECREF(tmp_type); |
| 2404 | Py_XDECREF(tmp_value); |
| 2405 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2406 | /* For b/w compatibility */ |
| 2407 | PySys_SetObject("exc_type", frame->f_exc_type); |
| 2408 | PySys_SetObject("exc_value", frame->f_exc_value); |
| 2409 | PySys_SetObject("exc_traceback", frame->f_exc_traceback); |
| 2410 | } |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2411 | tmp_type = frame->f_exc_type; |
| 2412 | tmp_value = frame->f_exc_value; |
| 2413 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2414 | frame->f_exc_type = NULL; |
| 2415 | frame->f_exc_value = NULL; |
| 2416 | frame->f_exc_traceback = NULL; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2417 | Py_XDECREF(tmp_type); |
| 2418 | Py_XDECREF(tmp_value); |
| 2419 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2420 | } |
| 2421 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2422 | /* Logic for the raise statement (too complicated for inlining). |
| 2423 | This *consumes* a reference count to each of its arguments. */ |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 2424 | static enum why_code |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2425 | do_raise(PyObject *type, PyObject *value, PyObject *tb) |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2426 | { |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 2427 | if (type == NULL) { |
| 2428 | /* Reraise */ |
| 2429 | PyThreadState *tstate = PyThreadState_Get(); |
| 2430 | type = tstate->exc_type == NULL ? Py_None : tstate->exc_type; |
| 2431 | value = tstate->exc_value; |
| 2432 | tb = tstate->exc_traceback; |
| 2433 | Py_XINCREF(type); |
| 2434 | Py_XINCREF(value); |
| 2435 | Py_XINCREF(tb); |
| 2436 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2437 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2438 | /* We support the following forms of raise: |
| 2439 | raise <class>, <classinstance> |
| 2440 | raise <class>, <argument tuple> |
| 2441 | raise <class>, None |
| 2442 | raise <class>, <argument> |
| 2443 | raise <classinstance>, None |
| 2444 | raise <string>, <object> |
| 2445 | raise <string>, None |
| 2446 | |
| 2447 | An omitted second argument is the same as None. |
| 2448 | |
| 2449 | In addition, raise <tuple>, <anything> is the same as |
| 2450 | raising the tuple's first item (and it better have one!); |
| 2451 | this rule is applied recursively. |
| 2452 | |
| 2453 | Finally, an optional third argument can be supplied, which |
| 2454 | gives the traceback to be substituted (useful when |
| 2455 | re-raising an exception after examining it). */ |
| 2456 | |
| 2457 | /* First, check the traceback argument, replacing None with |
| 2458 | NULL. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2459 | if (tb == Py_None) { |
| 2460 | Py_DECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2461 | tb = NULL; |
| 2462 | } |
| 2463 | else if (tb != NULL && !PyTraceBack_Check(tb)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2464 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 2465 | "raise: arg 3 must be a traceback or None"); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2466 | goto raise_error; |
| 2467 | } |
| 2468 | |
| 2469 | /* Next, replace a missing value with None */ |
| 2470 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2471 | value = Py_None; |
| 2472 | Py_INCREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2473 | } |
| 2474 | |
| 2475 | /* Next, repeatedly, replace a tuple exception with its first item */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2476 | while (PyTuple_Check(type) && PyTuple_Size(type) > 0) { |
| 2477 | PyObject *tmp = type; |
| 2478 | type = PyTuple_GET_ITEM(type, 0); |
| 2479 | Py_INCREF(type); |
| 2480 | Py_DECREF(tmp); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2481 | } |
| 2482 | |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2483 | if (PyString_Check(type)) |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2484 | ; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2485 | |
| 2486 | else if (PyClass_Check(type)) |
| 2487 | PyErr_NormalizeException(&type, &value, &tb); |
| 2488 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2489 | else if (PyInstance_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2490 | /* Raising an instance. The value should be a dummy. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2491 | if (value != Py_None) { |
| 2492 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2493 | "instance exception may not have a separate value"); |
| 2494 | goto raise_error; |
| 2495 | } |
| 2496 | else { |
| 2497 | /* Normalize to raise <class>, <instance> */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2498 | Py_DECREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2499 | value = type; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2500 | type = (PyObject*) ((PyInstanceObject*)type)->in_class; |
| 2501 | Py_INCREF(type); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2502 | } |
| 2503 | } |
| 2504 | else { |
| 2505 | /* Not something you can raise. You get an exception |
| 2506 | anyway, just not what you specified :-) */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2507 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2508 | "exceptions must be strings, classes, or instances"); |
| 2509 | goto raise_error; |
| 2510 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2511 | PyErr_Restore(type, value, tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2512 | if (tb == NULL) |
| 2513 | return WHY_EXCEPTION; |
| 2514 | else |
| 2515 | return WHY_RERAISE; |
| 2516 | raise_error: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2517 | Py_XDECREF(value); |
| 2518 | Py_XDECREF(type); |
| 2519 | Py_XDECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2520 | return WHY_EXCEPTION; |
| 2521 | } |
| 2522 | |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2523 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2524 | unpack_sequence(PyObject *v, int argcnt, PyObject **sp) |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2525 | { |
| 2526 | int i; |
| 2527 | PyObject *w; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2528 | |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2529 | for (i = 0; i < argcnt; i++) { |
| 2530 | if (! (w = PySequence_GetItem(v, i))) { |
| 2531 | if (PyErr_ExceptionMatches(PyExc_IndexError)) |
| 2532 | PyErr_SetString(PyExc_ValueError, |
| 2533 | "unpack sequence of wrong size"); |
| 2534 | goto finally; |
| 2535 | } |
| 2536 | *--sp = w; |
| 2537 | } |
| 2538 | /* we better get an IndexError now */ |
| 2539 | if (PySequence_GetItem(v, i) == NULL) { |
| 2540 | if (PyErr_ExceptionMatches(PyExc_IndexError)) { |
| 2541 | PyErr_Clear(); |
| 2542 | return 1; |
| 2543 | } |
| 2544 | /* some other exception occurred. fall through to finally */ |
| 2545 | } |
| 2546 | else |
| 2547 | PyErr_SetString(PyExc_ValueError, |
| 2548 | "unpack sequence of wrong size"); |
| 2549 | /* fall through */ |
| 2550 | finally: |
Barry Warsaw | 9101055 | 1997-08-25 22:30:51 +0000 | [diff] [blame] | 2551 | for (; i > 0; i--, sp++) |
| 2552 | Py_DECREF(*sp); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2553 | |
| 2554 | return 0; |
| 2555 | } |
| 2556 | |
| 2557 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2558 | #ifdef LLTRACE |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2559 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2560 | prtrace(PyObject *v, char *str) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2561 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2562 | printf("%s ", str); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2563 | if (PyObject_Print(v, stdout, 0) != 0) |
| 2564 | PyErr_Clear(); /* Don't know what else to do */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2565 | printf("\n"); |
Guido van Rossum | cc229ea | 2000-05-04 00:55:17 +0000 | [diff] [blame] | 2566 | return 1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2567 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2568 | #endif |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2569 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2570 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2571 | call_exc_trace(PyObject **p_trace, PyObject **p_newtrace, PyFrameObject *f) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2572 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2573 | PyObject *type, *value, *traceback, *arg; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2574 | int err; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2575 | PyErr_Fetch(&type, &value, &traceback); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 2576 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2577 | value = Py_None; |
| 2578 | Py_INCREF(value); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 2579 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2580 | arg = Py_BuildValue("(OOO)", type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2581 | if (arg == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2582 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2583 | return; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2584 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2585 | err = call_trace(p_trace, p_newtrace, f, "exception", arg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2586 | Py_DECREF(arg); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2587 | if (err == 0) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2588 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2589 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2590 | Py_XDECREF(type); |
| 2591 | Py_XDECREF(value); |
| 2592 | Py_XDECREF(traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2593 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2594 | } |
| 2595 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2596 | /* PyObject **p_trace: in/out; may not be NULL; |
| 2597 | may not point to NULL variable initially |
| 2598 | PyObject **p_newtrace: in/out; may be NULL; |
| 2599 | may point to NULL variable; |
| 2600 | may be same variable as p_newtrace */ |
| 2601 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2602 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2603 | call_trace(PyObject **p_trace, PyObject **p_newtrace, PyFrameObject *f, |
| 2604 | char *msg, PyObject *arg) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2605 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2606 | PyThreadState *tstate = f->f_tstate; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2607 | PyObject *args, *what; |
| 2608 | PyObject *res = NULL; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2609 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2610 | if (tstate->tracing) { |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2611 | /* Don't do recursive traces */ |
| 2612 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2613 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2614 | *p_newtrace = NULL; |
| 2615 | } |
| 2616 | return 0; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2617 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2618 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2619 | args = PyTuple_New(3); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2620 | if (args == NULL) |
Guido van Rossum | f9c90c5 | 1997-08-05 02:18:01 +0000 | [diff] [blame] | 2621 | goto cleanup; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2622 | what = PyString_FromString(msg); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2623 | if (what == NULL) |
Guido van Rossum | f9c90c5 | 1997-08-05 02:18:01 +0000 | [diff] [blame] | 2624 | goto cleanup; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2625 | Py_INCREF(f); |
| 2626 | PyTuple_SET_ITEM(args, 0, (PyObject *)f); |
| 2627 | PyTuple_SET_ITEM(args, 1, what); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2628 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2629 | arg = Py_None; |
| 2630 | Py_INCREF(arg); |
| 2631 | PyTuple_SET_ITEM(args, 2, arg); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2632 | tstate->tracing++; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2633 | PyFrame_FastToLocals(f); |
| 2634 | res = PyEval_CallObject(*p_trace, args); /* May clear *p_trace! */ |
| 2635 | PyFrame_LocalsToFast(f, 1); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2636 | tstate->tracing--; |
Guido van Rossum | f9c90c5 | 1997-08-05 02:18:01 +0000 | [diff] [blame] | 2637 | cleanup: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2638 | Py_XDECREF(args); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2639 | if (res == NULL) { |
| 2640 | /* The trace proc raised an exception */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2641 | PyTraceBack_Here(f); |
| 2642 | Py_XDECREF(*p_trace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2643 | *p_trace = NULL; |
| 2644 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2645 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2646 | *p_newtrace = NULL; |
| 2647 | } |
Barry Warsaw | f620263 | 1999-09-08 16:26:33 +0000 | [diff] [blame] | 2648 | /* to be extra double plus sure we don't get recursive |
| 2649 | * calls inf either tracefunc or profilefunc gets an |
| 2650 | * exception, zap the global variables. |
| 2651 | */ |
| 2652 | Py_XDECREF(tstate->sys_tracefunc); |
| 2653 | tstate->sys_tracefunc = NULL; |
| 2654 | Py_XDECREF(tstate->sys_profilefunc); |
| 2655 | tstate->sys_profilefunc = NULL; |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2656 | return -1; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2657 | } |
| 2658 | else { |
| 2659 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2660 | Py_XDECREF(*p_newtrace); |
| 2661 | if (res == Py_None) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2662 | *p_newtrace = NULL; |
| 2663 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2664 | Py_INCREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2665 | *p_newtrace = res; |
| 2666 | } |
| 2667 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2668 | Py_DECREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2669 | return 0; |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2670 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2671 | } |
| 2672 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2673 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2674 | PyEval_GetBuiltins(void) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2675 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 2676 | PyThreadState *tstate = PyThreadState_Get(); |
| 2677 | PyFrameObject *current_frame = tstate->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2678 | if (current_frame == NULL) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 2679 | return tstate->interp->builtins; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2680 | else |
| 2681 | return current_frame->f_builtins; |
| 2682 | } |
| 2683 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2684 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2685 | PyEval_GetLocals(void) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2686 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2687 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2688 | if (current_frame == NULL) |
| 2689 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2690 | PyFrame_FastToLocals(current_frame); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2691 | return current_frame->f_locals; |
| 2692 | } |
| 2693 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2694 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2695 | PyEval_GetGlobals(void) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2696 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2697 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2698 | if (current_frame == NULL) |
| 2699 | return NULL; |
| 2700 | else |
| 2701 | return current_frame->f_globals; |
| 2702 | } |
| 2703 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2704 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2705 | PyEval_GetFrame(void) |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2706 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2707 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2708 | return (PyObject *)current_frame; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2709 | } |
| 2710 | |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2711 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2712 | PyEval_GetRestricted(void) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2713 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2714 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2715 | return current_frame == NULL ? 0 : current_frame->f_restricted; |
| 2716 | } |
| 2717 | |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 2718 | int |
Jeremy Hylton | 061d106 | 2001-03-22 02:32:48 +0000 | [diff] [blame] | 2719 | PyEval_GetNestedScopes(void) |
| 2720 | { |
| 2721 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
| 2722 | return current_frame == NULL ? 0 : |
| 2723 | current_frame->f_code->co_flags & CO_NESTED; |
| 2724 | } |
| 2725 | |
| 2726 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2727 | Py_FlushLine(void) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2728 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2729 | PyObject *f = PySys_GetObject("stdout"); |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 2730 | if (f == NULL) |
| 2731 | return 0; |
| 2732 | if (!PyFile_SoftSpace(f, 0)) |
| 2733 | return 0; |
| 2734 | return PyFile_WriteString("\n", f); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2735 | } |
| 2736 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2737 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2738 | /* External interface to call any callable object. |
| 2739 | The arg must be a tuple or NULL. */ |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2740 | |
Guido van Rossum | d7ed683 | 1997-08-30 15:02:50 +0000 | [diff] [blame] | 2741 | #undef PyEval_CallObject |
| 2742 | /* for backward compatibility: export this interface */ |
| 2743 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2744 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2745 | PyEval_CallObject(PyObject *func, PyObject *arg) |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2746 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2747 | return PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2748 | } |
Guido van Rossum | d7ed683 | 1997-08-30 15:02:50 +0000 | [diff] [blame] | 2749 | #define PyEval_CallObject(func,arg) \ |
| 2750 | PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL) |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2751 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2752 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2753 | PyEval_CallObjectWithKeywords(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2754 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2755 | PyObject *result; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2756 | |
| 2757 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2758 | arg = PyTuple_New(0); |
| 2759 | else if (!PyTuple_Check(arg)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2760 | PyErr_SetString(PyExc_TypeError, |
| 2761 | "argument list must be a tuple"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2762 | return NULL; |
| 2763 | } |
| 2764 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2765 | Py_INCREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2766 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2767 | if (kw != NULL && !PyDict_Check(kw)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2768 | PyErr_SetString(PyExc_TypeError, |
| 2769 | "keyword list must be a dictionary"); |
Guido van Rossum | 25826c9 | 2000-04-21 21:17:39 +0000 | [diff] [blame] | 2770 | Py_DECREF(arg); |
Guido van Rossum | e3e61c1 | 1995-08-04 04:14:47 +0000 | [diff] [blame] | 2771 | return NULL; |
| 2772 | } |
| 2773 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2774 | result = call_object(func, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2775 | Py_DECREF(arg); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2776 | return result; |
| 2777 | } |
| 2778 | |
| 2779 | /* How often is each kind of object called? The answer depends on the |
| 2780 | program. An instrumented call_object() was used to run the Python |
| 2781 | regression test suite. The results were: |
| 2782 | 4200000 PyCFunctions |
| 2783 | 390000 fast_function() calls |
| 2784 | 94000 other functions |
| 2785 | 480000 all functions (sum of prev two) |
| 2786 | 150000 methods |
| 2787 | 100000 classes |
| 2788 | |
| 2789 | Tests on other bodies of code show that PyCFunctions are still |
| 2790 | most common, but not by such a large margin. |
| 2791 | */ |
| 2792 | |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 2793 | static char * |
| 2794 | get_func_name(PyObject *func) |
| 2795 | { |
| 2796 | if (PyMethod_Check(func)) |
| 2797 | return get_func_name(PyMethod_GET_FUNCTION(func)); |
| 2798 | else if (PyFunction_Check(func)) |
| 2799 | return PyString_AsString(((PyFunctionObject*)func)->func_name); |
| 2800 | else if (PyCFunction_Check(func)) |
| 2801 | return ((PyCFunctionObject*)func)->m_ml->ml_name; |
| 2802 | else if (PyClass_Check(func)) |
| 2803 | return PyString_AsString(((PyClassObject*)func)->cl_name); |
| 2804 | else if (PyInstance_Check(func)) { |
| 2805 | return PyString_AsString( |
| 2806 | ((PyInstanceObject*)func)->in_class->cl_name); |
| 2807 | } else { |
| 2808 | return func->ob_type->tp_name; |
| 2809 | } |
| 2810 | } |
| 2811 | |
| 2812 | static char * |
| 2813 | get_func_desc(PyObject *func) |
| 2814 | { |
| 2815 | if (PyMethod_Check(func)) |
| 2816 | return "()"; |
| 2817 | else if (PyFunction_Check(func)) |
| 2818 | return "()"; |
| 2819 | else if (PyCFunction_Check(func)) |
| 2820 | return "()"; |
| 2821 | else if (PyClass_Check(func)) |
| 2822 | return " constructor"; |
| 2823 | else if (PyInstance_Check(func)) { |
| 2824 | return " instance"; |
| 2825 | } else { |
| 2826 | return " object"; |
| 2827 | } |
| 2828 | } |
| 2829 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2830 | static PyObject * |
| 2831 | call_object(PyObject *func, PyObject *arg, PyObject *kw) |
| 2832 | { |
| 2833 | ternaryfunc call; |
| 2834 | PyObject *result; |
| 2835 | |
| 2836 | if (PyMethod_Check(func)) |
| 2837 | result = call_method(func, arg, kw); |
| 2838 | else if (PyFunction_Check(func)) |
| 2839 | result = call_eval_code2(func, arg, kw); |
| 2840 | else if (PyCFunction_Check(func)) |
| 2841 | result = call_cfunction(func, arg, kw); |
| 2842 | else if (PyClass_Check(func)) |
| 2843 | result = PyInstance_New(func, arg, kw); |
| 2844 | else if (PyInstance_Check(func)) |
| 2845 | result = call_instance(func, arg, kw); |
| 2846 | else if ((call = func->ob_type->tp_call) != NULL) |
| 2847 | result = (*call)(func, arg, kw); |
| 2848 | else { |
| 2849 | PyErr_Format(PyExc_TypeError, "object is not callable: %s", |
| 2850 | PyString_AS_STRING(PyObject_Repr(func))); |
| 2851 | return NULL; |
| 2852 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2853 | if (result == NULL && !PyErr_Occurred()) |
| 2854 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2855 | "NULL result without error in call_object"); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2856 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2857 | return result; |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2858 | } |
| 2859 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2860 | static PyObject * |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2861 | call_cfunction(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2862 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2863 | PyCFunctionObject* f = (PyCFunctionObject*)func; |
| 2864 | PyCFunction meth = PyCFunction_GET_FUNCTION(func); |
| 2865 | PyObject *self = PyCFunction_GET_SELF(func); |
| 2866 | int flags = PyCFunction_GET_FLAGS(func); |
| 2867 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2868 | if (flags & METH_KEYWORDS) { |
| 2869 | return (*(PyCFunctionWithKeywords)meth)(self, arg, kw); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2870 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2871 | if (kw != NULL && PyDict_Size(kw) != 0) { |
| 2872 | PyErr_Format(PyExc_TypeError, |
| 2873 | "%.200s() takes no keyword arguments", |
| 2874 | f->m_ml->ml_name); |
| 2875 | return NULL; |
| 2876 | } |
Fred Drake | 1a7aab7 | 2001-01-04 22:33:02 +0000 | [diff] [blame] | 2877 | if (flags & METH_VARARGS) { |
| 2878 | return (*meth)(self, arg); |
| 2879 | } |
| 2880 | if (!(flags & METH_VARARGS)) { |
| 2881 | /* the really old style */ |
| 2882 | int size = PyTuple_GET_SIZE(arg); |
| 2883 | if (size == 1) |
| 2884 | arg = PyTuple_GET_ITEM(arg, 0); |
| 2885 | else if (size == 0) |
| 2886 | arg = NULL; |
| 2887 | return (*meth)(self, arg); |
| 2888 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2889 | /* should never get here ??? */ |
| 2890 | PyErr_BadInternalCall(); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2891 | return NULL; |
| 2892 | } |
| 2893 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2894 | static PyObject * |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2895 | call_instance(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2896 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2897 | PyObject *res, *call = PyObject_GetAttrString(func, "__call__"); |
| 2898 | if (call == NULL) { |
| 2899 | PyInstanceObject *inst = (PyInstanceObject*) func; |
| 2900 | PyErr_Clear(); |
| 2901 | PyErr_Format(PyExc_AttributeError, |
| 2902 | "%.200s instance has no __call__ method", |
| 2903 | PyString_AsString(inst->in_class->cl_name)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2904 | return NULL; |
| 2905 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2906 | res = call_object(call, arg, kw); |
| 2907 | Py_DECREF(call); |
| 2908 | return res; |
| 2909 | } |
| 2910 | |
| 2911 | static PyObject * |
| 2912 | call_method(PyObject *func, PyObject *arg, PyObject *kw) |
| 2913 | { |
| 2914 | PyObject *self = PyMethod_GET_SELF(func); |
| 2915 | PyObject *class = PyMethod_GET_CLASS(func); |
| 2916 | PyObject *result; |
| 2917 | |
| 2918 | func = PyMethod_GET_FUNCTION(func); |
| 2919 | if (self == NULL) { |
| 2920 | /* Unbound methods must be called with an instance of |
| 2921 | the class (or a derived class) as first argument */ |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 2922 | int ok; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2923 | if (PyTuple_Size(arg) >= 1) |
| 2924 | self = PyTuple_GET_ITEM(arg, 0); |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 2925 | if (self == NULL) |
| 2926 | ok = 0; |
| 2927 | else { |
| 2928 | ok = PyObject_IsInstance(self, class); |
| 2929 | if (ok < 0) |
| 2930 | return NULL; |
| 2931 | } |
| 2932 | if (!ok) { |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 2933 | PyErr_Format(PyExc_TypeError, |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 2934 | "unbound method %s%s must be " |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 2935 | "called with instance as first argument", |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 2936 | get_func_name(func), get_func_desc(func)); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2937 | return NULL; |
| 2938 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2939 | Py_INCREF(arg); |
Guido van Rossum | 66b0e9c | 2001-03-21 19:17:22 +0000 | [diff] [blame] | 2940 | } |
| 2941 | else { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2942 | int argcount = PyTuple_Size(arg); |
| 2943 | PyObject *newarg = PyTuple_New(argcount + 1); |
| 2944 | int i; |
| 2945 | if (newarg == NULL) |
| 2946 | return NULL; |
| 2947 | Py_INCREF(self); |
| 2948 | PyTuple_SET_ITEM(newarg, 0, self); |
| 2949 | for (i = 0; i < argcount; i++) { |
| 2950 | PyObject *v = PyTuple_GET_ITEM(arg, i); |
| 2951 | Py_XINCREF(v); |
| 2952 | PyTuple_SET_ITEM(newarg, i+1, v); |
| 2953 | } |
| 2954 | arg = newarg; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2955 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2956 | result = call_object(func, arg, kw); |
| 2957 | Py_DECREF(arg); |
| 2958 | return result; |
| 2959 | } |
| 2960 | |
| 2961 | static PyObject * |
| 2962 | call_eval_code2(PyObject *func, PyObject *arg, PyObject *kw) |
| 2963 | { |
| 2964 | PyObject *result; |
| 2965 | PyObject *argdefs; |
| 2966 | PyObject **d, **k; |
| 2967 | int nk, nd; |
| 2968 | |
| 2969 | argdefs = PyFunction_GET_DEFAULTS(func); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2970 | if (argdefs != NULL && PyTuple_Check(argdefs)) { |
| 2971 | d = &PyTuple_GET_ITEM((PyTupleObject *)argdefs, 0); |
| 2972 | nd = PyTuple_Size(argdefs); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2973 | } |
| 2974 | else { |
| 2975 | d = NULL; |
| 2976 | nd = 0; |
| 2977 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2978 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2979 | if (kw != NULL) { |
| 2980 | int pos, i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2981 | nk = PyDict_Size(kw); |
| 2982 | k = PyMem_NEW(PyObject *, 2*nk); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2983 | if (k == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2984 | PyErr_NoMemory(); |
| 2985 | Py_DECREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2986 | return NULL; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2987 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2988 | pos = i = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2989 | while (PyDict_Next(kw, &pos, &k[i], &k[i+1])) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2990 | i += 2; |
| 2991 | nk = i/2; |
| 2992 | /* XXX This is broken if the caller deletes dict items! */ |
| 2993 | } |
| 2994 | else { |
| 2995 | k = NULL; |
| 2996 | nk = 0; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2997 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2998 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2999 | result = eval_code2( |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3000 | (PyCodeObject *)PyFunction_GET_CODE(func), |
| 3001 | PyFunction_GET_GLOBALS(func), (PyObject *)NULL, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3002 | &PyTuple_GET_ITEM(arg, 0), PyTuple_Size(arg), |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 3003 | k, nk, d, nd, |
| 3004 | PyFunction_GET_CLOSURE(func)); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3005 | |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 3006 | if (k != NULL) |
| 3007 | PyMem_DEL(k); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3008 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3009 | return result; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3010 | } |
| 3011 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3012 | #define EXT_POP(STACK_POINTER) (*--(STACK_POINTER)) |
| 3013 | |
| 3014 | /* The two fast_xxx() functions optimize calls for which no argument |
| 3015 | tuple is necessary; the objects are passed directly from the stack. |
| 3016 | fast_cfunction() is called for METH_OLDARGS functions. |
| 3017 | fast_function() is for functions with no special argument handling. |
| 3018 | */ |
| 3019 | |
| 3020 | static PyObject * |
| 3021 | fast_cfunction(PyObject *func, PyObject ***pp_stack, int na) |
| 3022 | { |
| 3023 | PyCFunction meth = PyCFunction_GET_FUNCTION(func); |
| 3024 | PyObject *self = PyCFunction_GET_SELF(func); |
| 3025 | |
| 3026 | if (na == 0) |
| 3027 | return (*meth)(self, NULL); |
Charles G. Waldman | eec72a7 | 2001-01-10 22:11:59 +0000 | [diff] [blame] | 3028 | else if (na == 1) { |
| 3029 | PyObject *arg = EXT_POP(*pp_stack); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3030 | PyObject *result = (*meth)(self, arg); |
Charles G. Waldman | eec72a7 | 2001-01-10 22:11:59 +0000 | [diff] [blame] | 3031 | Py_DECREF(arg); |
| 3032 | return result; |
| 3033 | } else { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3034 | PyObject *args = load_args(pp_stack, na); |
| 3035 | PyObject *result = (*meth)(self, args); |
| 3036 | Py_DECREF(args); |
| 3037 | return result; |
| 3038 | } |
| 3039 | } |
| 3040 | |
| 3041 | static PyObject * |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3042 | 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] | 3043 | { |
| 3044 | PyObject *co = PyFunction_GET_CODE(func); |
| 3045 | PyObject *globals = PyFunction_GET_GLOBALS(func); |
| 3046 | PyObject *argdefs = PyFunction_GET_DEFAULTS(func); |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 3047 | PyObject *closure = PyFunction_GET_CLOSURE(func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3048 | PyObject **d = NULL; |
| 3049 | int nd = 0; |
| 3050 | |
| 3051 | if (argdefs != NULL) { |
| 3052 | d = &PyTuple_GET_ITEM(argdefs, 0); |
| 3053 | nd = ((PyTupleObject *)argdefs)->ob_size; |
| 3054 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3055 | return eval_code2((PyCodeObject *)co, globals, |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3056 | (PyObject *)NULL, (*pp_stack)-n, na, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 3057 | (*pp_stack)-2*nk, nk, d, nd, |
| 3058 | closure); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3059 | } |
| 3060 | |
| 3061 | static PyObject * |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3062 | update_keyword_args(PyObject *orig_kwdict, int nk, PyObject ***pp_stack, |
| 3063 | PyObject *func) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3064 | { |
| 3065 | PyObject *kwdict = NULL; |
| 3066 | if (orig_kwdict == NULL) |
| 3067 | kwdict = PyDict_New(); |
| 3068 | else { |
| 3069 | kwdict = PyDict_Copy(orig_kwdict); |
| 3070 | Py_DECREF(orig_kwdict); |
| 3071 | } |
| 3072 | if (kwdict == NULL) |
| 3073 | return NULL; |
| 3074 | while (--nk >= 0) { |
| 3075 | int err; |
| 3076 | PyObject *value = EXT_POP(*pp_stack); |
| 3077 | PyObject *key = EXT_POP(*pp_stack); |
| 3078 | if (PyDict_GetItem(kwdict, key) != NULL) { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3079 | PyErr_Format(PyExc_TypeError, |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3080 | "%.200s%s got multiple values " |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3081 | "for keyword argument '%.200s'", |
| 3082 | get_func_name(func), |
| 3083 | get_func_desc(func), |
| 3084 | PyString_AsString(key)); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3085 | Py_DECREF(key); |
| 3086 | Py_DECREF(value); |
| 3087 | Py_DECREF(kwdict); |
| 3088 | return NULL; |
| 3089 | } |
| 3090 | err = PyDict_SetItem(kwdict, key, value); |
| 3091 | Py_DECREF(key); |
| 3092 | Py_DECREF(value); |
| 3093 | if (err) { |
| 3094 | Py_DECREF(kwdict); |
| 3095 | return NULL; |
| 3096 | } |
| 3097 | } |
| 3098 | return kwdict; |
| 3099 | } |
| 3100 | |
| 3101 | static PyObject * |
| 3102 | update_star_args(int nstack, int nstar, PyObject *stararg, |
| 3103 | PyObject ***pp_stack) |
| 3104 | { |
| 3105 | PyObject *callargs, *w; |
| 3106 | |
| 3107 | callargs = PyTuple_New(nstack + nstar); |
| 3108 | if (callargs == NULL) { |
| 3109 | return NULL; |
| 3110 | } |
| 3111 | if (nstar) { |
| 3112 | int i; |
| 3113 | for (i = 0; i < nstar; i++) { |
| 3114 | PyObject *a = PyTuple_GET_ITEM(stararg, i); |
| 3115 | Py_INCREF(a); |
| 3116 | PyTuple_SET_ITEM(callargs, nstack + i, a); |
| 3117 | } |
| 3118 | } |
| 3119 | while (--nstack >= 0) { |
| 3120 | w = EXT_POP(*pp_stack); |
| 3121 | PyTuple_SET_ITEM(callargs, nstack, w); |
| 3122 | } |
| 3123 | return callargs; |
| 3124 | } |
| 3125 | |
| 3126 | static PyObject * |
| 3127 | load_args(PyObject ***pp_stack, int na) |
| 3128 | { |
| 3129 | PyObject *args = PyTuple_New(na); |
| 3130 | PyObject *w; |
| 3131 | |
| 3132 | if (args == NULL) |
| 3133 | return NULL; |
| 3134 | while (--na >= 0) { |
| 3135 | w = EXT_POP(*pp_stack); |
| 3136 | PyTuple_SET_ITEM(args, na, w); |
| 3137 | } |
| 3138 | return args; |
| 3139 | } |
| 3140 | |
| 3141 | static PyObject * |
| 3142 | do_call(PyObject *func, PyObject ***pp_stack, int na, int nk) |
| 3143 | { |
| 3144 | PyObject *callargs = NULL; |
| 3145 | PyObject *kwdict = NULL; |
| 3146 | PyObject *result = NULL; |
| 3147 | |
| 3148 | if (nk > 0) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3149 | kwdict = update_keyword_args(NULL, nk, pp_stack, func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3150 | if (kwdict == NULL) |
| 3151 | goto call_fail; |
| 3152 | } |
| 3153 | callargs = load_args(pp_stack, na); |
| 3154 | if (callargs == NULL) |
| 3155 | goto call_fail; |
| 3156 | result = call_object(func, callargs, kwdict); |
| 3157 | call_fail: |
| 3158 | Py_XDECREF(callargs); |
| 3159 | Py_XDECREF(kwdict); |
| 3160 | return result; |
| 3161 | } |
| 3162 | |
| 3163 | static PyObject * |
| 3164 | ext_do_call(PyObject *func, PyObject ***pp_stack, int flags, int na, int nk) |
| 3165 | { |
| 3166 | int nstar = 0; |
| 3167 | PyObject *callargs = NULL; |
| 3168 | PyObject *stararg = NULL; |
| 3169 | PyObject *kwdict = NULL; |
| 3170 | PyObject *result = NULL; |
| 3171 | |
| 3172 | if (flags & CALL_FLAG_KW) { |
| 3173 | kwdict = EXT_POP(*pp_stack); |
| 3174 | if (!(kwdict && PyDict_Check(kwdict))) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3175 | PyErr_Format(PyExc_TypeError, |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3176 | "%s%s argument after ** " |
| 3177 | "must be a dictionary", |
| 3178 | get_func_name(func), |
| 3179 | get_func_desc(func)); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3180 | goto ext_call_fail; |
| 3181 | } |
| 3182 | } |
| 3183 | if (flags & CALL_FLAG_VAR) { |
| 3184 | stararg = EXT_POP(*pp_stack); |
| 3185 | if (!PyTuple_Check(stararg)) { |
| 3186 | PyObject *t = NULL; |
| 3187 | t = PySequence_Tuple(stararg); |
| 3188 | if (t == NULL) { |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3189 | if (PyErr_ExceptionMatches(PyExc_TypeError)) { |
| 3190 | PyErr_Format(PyExc_TypeError, |
| 3191 | "%s%s argument after * " |
| 3192 | "must be a sequence", |
| 3193 | get_func_name(func), |
| 3194 | get_func_desc(func)); |
| 3195 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3196 | goto ext_call_fail; |
| 3197 | } |
| 3198 | Py_DECREF(stararg); |
| 3199 | stararg = t; |
| 3200 | } |
| 3201 | nstar = PyTuple_GET_SIZE(stararg); |
| 3202 | } |
| 3203 | if (nk > 0) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3204 | kwdict = update_keyword_args(kwdict, nk, pp_stack, func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3205 | if (kwdict == NULL) |
| 3206 | goto ext_call_fail; |
| 3207 | } |
| 3208 | callargs = update_star_args(na, nstar, stararg, pp_stack); |
| 3209 | if (callargs == NULL) |
| 3210 | goto ext_call_fail; |
| 3211 | result = call_object(func, callargs, kwdict); |
| 3212 | ext_call_fail: |
| 3213 | Py_XDECREF(callargs); |
| 3214 | Py_XDECREF(kwdict); |
| 3215 | Py_XDECREF(stararg); |
| 3216 | return result; |
| 3217 | } |
| 3218 | |
Guido van Rossum | 3b9c667 | 1996-07-30 18:40:29 +0000 | [diff] [blame] | 3219 | #define SLICE_ERROR_MSG \ |
| 3220 | "standard sequence type does not support step size other than one" |
| 3221 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3222 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3223 | loop_subscript(PyObject *v, PyObject *w) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3224 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3225 | PySequenceMethods *sq = v->ob_type->tp_as_sequence; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3226 | int i; |
Guido van Rossum | 7e33c6e | 1998-05-22 00:52:29 +0000 | [diff] [blame] | 3227 | if (sq == NULL || sq->sq_item == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3228 | PyErr_SetString(PyExc_TypeError, "loop over non-sequence"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3229 | return NULL; |
| 3230 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3231 | i = PyInt_AsLong(w); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3232 | v = (*sq->sq_item)(v, i); |
| 3233 | if (v) |
| 3234 | return v; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 3235 | if (PyErr_ExceptionMatches(PyExc_IndexError)) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3236 | PyErr_Clear(); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3237 | return NULL; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3238 | } |
| 3239 | |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3240 | /* Extract a slice index from a PyInt or PyLong, the index is bound to |
| 3241 | the range [-INT_MAX+1, INTMAX]. Returns 0 and an exception if there is |
| 3242 | and error. Returns 1 on success.*/ |
| 3243 | |
| 3244 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3245 | _PyEval_SliceIndex(PyObject *v, int *pi) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3246 | { |
| 3247 | if (v != NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3248 | long x; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3249 | if (PyInt_Check(v)) { |
| 3250 | x = PyInt_AsLong(v); |
| 3251 | } else if (PyLong_Check(v)) { |
| 3252 | x = PyLong_AsLong(v); |
| 3253 | if (x==-1 && PyErr_Occurred()) { |
| 3254 | PyObject *long_zero; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3255 | int cmp; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3256 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3257 | if (!PyErr_ExceptionMatches( |
| 3258 | PyExc_OverflowError)) { |
| 3259 | /* It's not an overflow error, so just |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3260 | signal an error */ |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3261 | return 0; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3262 | } |
| 3263 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3264 | /* Clear the OverflowError */ |
| 3265 | PyErr_Clear(); |
| 3266 | |
| 3267 | /* It's an overflow error, so we need to |
| 3268 | check the sign of the long integer, |
| 3269 | set the value to INT_MAX or 0, and clear |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3270 | the error. */ |
| 3271 | |
| 3272 | /* Create a long integer with a value of 0 */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3273 | long_zero = PyLong_FromLong(0L); |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3274 | if (long_zero == NULL) return 0; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3275 | |
| 3276 | /* Check sign */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3277 | cmp = PyObject_RichCompareBool(v, long_zero, |
| 3278 | Py_GT); |
| 3279 | Py_DECREF(long_zero); |
| 3280 | if (cmp < 0) |
| 3281 | return 0; |
| 3282 | else if (cmp > 0) |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3283 | x = INT_MAX; |
| 3284 | else |
| 3285 | x = 0; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 3286 | } |
| 3287 | } else { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3288 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3289 | "slice indices must be integers"); |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3290 | return 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3291 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3292 | /* Truncate -- very long indices are truncated anyway */ |
| 3293 | if (x > INT_MAX) |
| 3294 | x = INT_MAX; |
| 3295 | else if (x < -INT_MAX) |
| 3296 | x = 0; |
| 3297 | *pi = x; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3298 | } |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3299 | return 1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3300 | } |
| 3301 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3302 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3303 | 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] | 3304 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3305 | int ilow = 0, ihigh = INT_MAX; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3306 | if (!_PyEval_SliceIndex(v, &ilow)) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3307 | return NULL; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3308 | if (!_PyEval_SliceIndex(w, &ihigh)) |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3309 | return NULL; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3310 | return PySequence_GetSlice(u, ilow, ihigh); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3311 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3312 | |
| 3313 | static int |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3314 | assign_slice(PyObject *u, PyObject *v, PyObject *w, PyObject *x) |
| 3315 | /* u[v:w] = x */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3316 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3317 | int ilow = 0, ihigh = INT_MAX; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3318 | if (!_PyEval_SliceIndex(v, &ilow)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3319 | return -1; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3320 | if (!_PyEval_SliceIndex(w, &ihigh)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3321 | return -1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3322 | if (x == NULL) |
| 3323 | return PySequence_DelSlice(u, ilow, ihigh); |
| 3324 | else |
| 3325 | return PySequence_SetSlice(u, ilow, ihigh, x); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3326 | } |
| 3327 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3328 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3329 | cmp_outcome(int op, register PyObject *v, register PyObject *w) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3330 | { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3331 | int res = 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3332 | switch (op) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3333 | case IS: |
| 3334 | case IS_NOT: |
| 3335 | res = (v == w); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3336 | if (op == (int) IS_NOT) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3337 | res = !res; |
| 3338 | break; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3339 | case IN: |
| 3340 | case NOT_IN: |
Guido van Rossum | 7e33c6e | 1998-05-22 00:52:29 +0000 | [diff] [blame] | 3341 | res = PySequence_Contains(w, v); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3342 | if (res < 0) |
| 3343 | return NULL; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3344 | if (op == (int) NOT_IN) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3345 | res = !res; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3346 | break; |
| 3347 | case EXC_MATCH: |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 3348 | res = PyErr_GivenExceptionMatches(v, w); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3349 | break; |
| 3350 | default: |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3351 | return PyObject_RichCompare(v, w, op); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3352 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3353 | v = res ? Py_True : Py_False; |
| 3354 | Py_INCREF(v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3355 | return v; |
| 3356 | } |
| 3357 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3358 | static PyObject * |
| 3359 | import_from(PyObject *v, PyObject *name) |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3360 | { |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3361 | PyObject *x; |
| 3362 | |
| 3363 | x = PyObject_GetAttr(v, name); |
| 3364 | if (x == NULL && PyErr_ExceptionMatches(PyExc_AttributeError)) { |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3365 | PyErr_Format(PyExc_ImportError, |
| 3366 | "cannot import name %.230s", |
| 3367 | PyString_AsString(name)); |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3368 | } |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3369 | return x; |
| 3370 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3371 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3372 | static int |
| 3373 | import_all_from(PyObject *locals, PyObject *v) |
| 3374 | { |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3375 | PyObject *all = PyObject_GetAttrString(v, "__all__"); |
| 3376 | PyObject *dict, *name, *value; |
| 3377 | int skip_leading_underscores = 0; |
| 3378 | int pos, err; |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3379 | |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3380 | if (all == NULL) { |
| 3381 | if (!PyErr_ExceptionMatches(PyExc_AttributeError)) |
| 3382 | return -1; /* Unexpected error */ |
| 3383 | PyErr_Clear(); |
| 3384 | dict = PyObject_GetAttrString(v, "__dict__"); |
| 3385 | if (dict == NULL) { |
| 3386 | if (!PyErr_ExceptionMatches(PyExc_AttributeError)) |
| 3387 | return -1; |
| 3388 | PyErr_SetString(PyExc_ImportError, |
| 3389 | "from-import-* object has no __dict__ and no __all__"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3390 | return -1; |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3391 | } |
| 3392 | all = PyMapping_Keys(dict); |
| 3393 | Py_DECREF(dict); |
| 3394 | if (all == NULL) |
| 3395 | return -1; |
| 3396 | skip_leading_underscores = 1; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3397 | } |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3398 | |
| 3399 | for (pos = 0, err = 0; ; pos++) { |
| 3400 | name = PySequence_GetItem(all, pos); |
| 3401 | if (name == NULL) { |
| 3402 | if (!PyErr_ExceptionMatches(PyExc_IndexError)) |
| 3403 | err = -1; |
| 3404 | else |
| 3405 | PyErr_Clear(); |
| 3406 | break; |
| 3407 | } |
| 3408 | if (skip_leading_underscores && |
| 3409 | PyString_Check(name) && |
| 3410 | PyString_AS_STRING(name)[0] == '_') |
| 3411 | { |
| 3412 | Py_DECREF(name); |
| 3413 | continue; |
| 3414 | } |
| 3415 | value = PyObject_GetAttr(v, name); |
| 3416 | if (value == NULL) |
| 3417 | err = -1; |
| 3418 | else |
| 3419 | err = PyDict_SetItem(locals, name, value); |
| 3420 | Py_DECREF(name); |
| 3421 | Py_XDECREF(value); |
| 3422 | if (err != 0) |
| 3423 | break; |
| 3424 | } |
| 3425 | Py_DECREF(all); |
| 3426 | return err; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3427 | } |
| 3428 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3429 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3430 | build_class(PyObject *methods, PyObject *bases, PyObject *name) |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3431 | { |
Guido van Rossum | cd64965 | 1997-08-22 16:56:16 +0000 | [diff] [blame] | 3432 | int i, n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3433 | if (!PyTuple_Check(bases)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3434 | PyErr_SetString(PyExc_SystemError, |
| 3435 | "build_class with non-tuple bases"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3436 | return NULL; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3437 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3438 | if (!PyDict_Check(methods)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3439 | PyErr_SetString(PyExc_SystemError, |
| 3440 | "build_class with non-dictionary"); |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3441 | return NULL; |
| 3442 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3443 | if (!PyString_Check(name)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3444 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 7a5b796 | 2000-03-31 13:52:29 +0000 | [diff] [blame] | 3445 | "build_class with non-string name"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3446 | return NULL; |
| 3447 | } |
Guido van Rossum | cd64965 | 1997-08-22 16:56:16 +0000 | [diff] [blame] | 3448 | n = PyTuple_Size(bases); |
| 3449 | for (i = 0; i < n; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3450 | PyObject *base = PyTuple_GET_ITEM(bases, i); |
| 3451 | if (!PyClass_Check(base)) { |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 3452 | /* Call the base's *type*, if it is callable. |
| 3453 | This code is a hook for Donald Beaudry's |
| 3454 | and Jim Fulton's type extensions. In |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 3455 | unextended Python it will never be triggered |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3456 | since its types are not callable. |
| 3457 | Ditto: call the bases's *class*, if it has |
| 3458 | one. This makes the same thing possible |
| 3459 | without writing C code. A true meta-object |
| 3460 | protocol! */ |
| 3461 | PyObject *basetype = (PyObject *)base->ob_type; |
| 3462 | PyObject *callable = NULL; |
| 3463 | if (PyCallable_Check(basetype)) |
| 3464 | callable = basetype; |
| 3465 | else |
| 3466 | callable = PyObject_GetAttrString( |
| 3467 | base, "__class__"); |
| 3468 | if (callable) { |
| 3469 | PyObject *args; |
| 3470 | PyObject *newclass = NULL; |
| 3471 | args = Py_BuildValue( |
| 3472 | "(OOO)", name, bases, methods); |
| 3473 | if (args != NULL) { |
| 3474 | newclass = PyEval_CallObject( |
| 3475 | callable, args); |
| 3476 | Py_DECREF(args); |
| 3477 | } |
Guido van Rossum | 730806d | 1998-04-10 22:27:42 +0000 | [diff] [blame] | 3478 | if (callable != basetype) { |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3479 | Py_DECREF(callable); |
Guido van Rossum | 730806d | 1998-04-10 22:27:42 +0000 | [diff] [blame] | 3480 | } |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3481 | return newclass; |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 3482 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3483 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3484 | "base is not a class object"); |
| 3485 | return NULL; |
| 3486 | } |
| 3487 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3488 | return PyClass_New(bases, methods, name); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3489 | } |
| 3490 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3491 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3492 | exec_statement(PyFrameObject *f, PyObject *prog, PyObject *globals, |
| 3493 | PyObject *locals) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3494 | { |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3495 | int n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3496 | PyObject *v; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3497 | int plain = 0; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3498 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3499 | if (PyTuple_Check(prog) && globals == Py_None && locals == Py_None && |
| 3500 | ((n = PyTuple_Size(prog)) == 2 || n == 3)) { |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3501 | /* Backward compatibility hack */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3502 | globals = PyTuple_GetItem(prog, 1); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3503 | if (n == 3) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3504 | locals = PyTuple_GetItem(prog, 2); |
| 3505 | prog = PyTuple_GetItem(prog, 0); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3506 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3507 | if (globals == Py_None) { |
| 3508 | globals = PyEval_GetGlobals(); |
| 3509 | if (locals == Py_None) { |
| 3510 | locals = PyEval_GetLocals(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3511 | plain = 1; |
| 3512 | } |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3513 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3514 | else if (locals == Py_None) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3515 | locals = globals; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3516 | if (!PyString_Check(prog) && |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 3517 | !PyUnicode_Check(prog) && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3518 | !PyCode_Check(prog) && |
| 3519 | !PyFile_Check(prog)) { |
| 3520 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3521 | "exec: arg 1 must be a string, file, or code object"); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3522 | return -1; |
| 3523 | } |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3524 | if (!PyDict_Check(globals)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3525 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3526 | "exec: arg 2 must be a dictionary or None"); |
| 3527 | return -1; |
| 3528 | } |
| 3529 | if (!PyDict_Check(locals)) { |
| 3530 | PyErr_SetString(PyExc_TypeError, |
| 3531 | "exec: arg 3 must be a dictionary or None"); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3532 | return -1; |
| 3533 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3534 | if (PyDict_GetItemString(globals, "__builtins__") == NULL) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3535 | PyDict_SetItemString(globals, "__builtins__", f->f_builtins); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3536 | if (PyCode_Check(prog)) { |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3537 | v = PyEval_EvalCode((PyCodeObject *) prog, globals, locals); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3538 | } |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3539 | else if (PyFile_Check(prog)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3540 | FILE *fp = PyFile_AsFile(prog); |
| 3541 | char *name = PyString_AsString(PyFile_Name(prog)); |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 3542 | if (PyEval_GetNestedScopes()) { |
| 3543 | PyCompilerFlags cf; |
| 3544 | cf.cf_nested_scopes = 1; |
| 3545 | v = PyRun_FileFlags(fp, name, Py_file_input, globals, |
| 3546 | locals, &cf); |
| 3547 | } else { |
| 3548 | v = PyRun_File(fp, name, Py_file_input, globals, |
| 3549 | locals); |
| 3550 | } |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3551 | } |
| 3552 | else { |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 3553 | char *str; |
| 3554 | if (PyString_AsStringAndSize(prog, &str, NULL)) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3555 | return -1; |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 3556 | if (PyEval_GetNestedScopes()) { |
| 3557 | PyCompilerFlags cf; |
| 3558 | cf.cf_nested_scopes = 1; |
| 3559 | v = PyRun_StringFlags(str, Py_file_input, globals, |
| 3560 | locals, &cf); |
| 3561 | } else |
| 3562 | v = PyRun_String(str, Py_file_input, globals, locals); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3563 | } |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3564 | if (plain) |
| 3565 | PyFrame_LocalsToFast(f, 0); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3566 | if (v == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3567 | return -1; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3568 | Py_DECREF(v); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3569 | return 0; |
| 3570 | } |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3571 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3572 | static void |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 3573 | format_exc_check_arg(PyObject *exc, char *format_str, PyObject *obj) |
| 3574 | { |
| 3575 | char *obj_str; |
| 3576 | |
| 3577 | if (!obj) |
| 3578 | return; |
| 3579 | |
| 3580 | obj_str = PyString_AsString(obj); |
| 3581 | if (!obj_str) |
| 3582 | return; |
| 3583 | |
| 3584 | PyErr_Format(exc, format_str, obj_str); |
| 3585 | } |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3586 | |
| 3587 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 3588 | |
| 3589 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3590 | getarray(long a[256]) |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3591 | { |
| 3592 | int i; |
| 3593 | PyObject *l = PyList_New(256); |
| 3594 | if (l == NULL) return NULL; |
| 3595 | for (i = 0; i < 256; i++) { |
| 3596 | PyObject *x = PyInt_FromLong(a[i]); |
| 3597 | if (x == NULL) { |
| 3598 | Py_DECREF(l); |
| 3599 | return NULL; |
| 3600 | } |
| 3601 | PyList_SetItem(l, i, x); |
| 3602 | } |
| 3603 | for (i = 0; i < 256; i++) |
| 3604 | a[i] = 0; |
| 3605 | return l; |
| 3606 | } |
| 3607 | |
| 3608 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3609 | _Py_GetDXProfile(PyObject *self, PyObject *args) |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3610 | { |
| 3611 | #ifndef DXPAIRS |
| 3612 | return getarray(dxp); |
| 3613 | #else |
| 3614 | int i; |
| 3615 | PyObject *l = PyList_New(257); |
| 3616 | if (l == NULL) return NULL; |
| 3617 | for (i = 0; i < 257; i++) { |
| 3618 | PyObject *x = getarray(dxpairs[i]); |
| 3619 | if (x == NULL) { |
| 3620 | Py_DECREF(l); |
| 3621 | return NULL; |
| 3622 | } |
| 3623 | PyList_SetItem(l, i, x); |
| 3624 | } |
| 3625 | return l; |
| 3626 | #endif |
| 3627 | } |
| 3628 | |
| 3629 | #endif |