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 | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 40 | PyObject **, int); |
| 41 | |
| 42 | static PyObject *call_object(PyObject *, PyObject *, PyObject *); |
| 43 | static PyObject *call_cfunction(PyObject *, PyObject *, PyObject *); |
| 44 | static PyObject *call_instance(PyObject *, PyObject *, PyObject *); |
| 45 | static PyObject *call_method(PyObject *, PyObject *, PyObject *); |
| 46 | static PyObject *call_eval_code2(PyObject *, PyObject *, PyObject *); |
| 47 | static PyObject *fast_function(PyObject *, PyObject ***, int, int, int); |
| 48 | static PyObject *fast_cfunction(PyObject *, PyObject ***, int); |
| 49 | static PyObject *do_call(PyObject *, PyObject ***, int, int); |
| 50 | static PyObject *ext_do_call(PyObject *, PyObject ***, int, int, int); |
| 51 | static PyObject *update_keyword_args(PyObject *, int, PyObject ***); |
| 52 | static PyObject *update_star_args(int, int, PyObject *, PyObject ***); |
| 53 | static PyObject *load_args(PyObject ***, int); |
| 54 | #define CALL_FLAG_VAR 1 |
| 55 | #define CALL_FLAG_KW 2 |
| 56 | |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 57 | #ifdef LLTRACE |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 58 | static int prtrace(PyObject *, char *); |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 59 | #endif |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 60 | static void call_exc_trace(PyObject **, PyObject**, PyFrameObject *); |
| 61 | static int call_trace(PyObject **, PyObject **, |
| 62 | PyFrameObject *, char *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 63 | static PyObject *loop_subscript(PyObject *, PyObject *); |
| 64 | static PyObject *apply_slice(PyObject *, PyObject *, PyObject *); |
| 65 | static int assign_slice(PyObject *, PyObject *, |
| 66 | PyObject *, PyObject *); |
| 67 | static PyObject *cmp_outcome(int, PyObject *, PyObject *); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 68 | static PyObject *import_from(PyObject *, PyObject *); |
| 69 | static int import_all_from(PyObject *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 70 | static PyObject *build_class(PyObject *, PyObject *, PyObject *); |
| 71 | static int exec_statement(PyFrameObject *, |
| 72 | PyObject *, PyObject *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 73 | static void set_exc_info(PyThreadState *, PyObject *, PyObject *, PyObject *); |
| 74 | static void reset_exc_info(PyThreadState *); |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 75 | static void format_exc_check_arg(PyObject *, char *, PyObject *); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 76 | |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 77 | #define NAME_ERROR_MSG \ |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 78 | "name '%.200s' is not defined" |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 79 | #define UNBOUNDLOCAL_ERROR_MSG \ |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 80 | "local variable '%.200s' referenced before assignment" |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 81 | |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 82 | /* Dynamic execution profile */ |
| 83 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 84 | #ifdef DXPAIRS |
| 85 | static long dxpairs[257][256]; |
| 86 | #define dxp dxpairs[256] |
| 87 | #else |
| 88 | static long dxp[256]; |
| 89 | #endif |
| 90 | #endif |
| 91 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 92 | #ifdef WITH_THREAD |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 93 | |
Guido van Rossum | 2571cc8 | 1999-04-07 16:07:23 +0000 | [diff] [blame] | 94 | #ifndef DONT_HAVE_ERRNO_H |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 95 | #include <errno.h> |
Guido van Rossum | 2571cc8 | 1999-04-07 16:07:23 +0000 | [diff] [blame] | 96 | #endif |
Guido van Rossum | 49b5606 | 1998-10-01 20:42:43 +0000 | [diff] [blame] | 97 | #include "pythread.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 98 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 99 | extern int _PyThread_Started; /* Flag for Py_Exit */ |
| 100 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 101 | static PyThread_type_lock interpreter_lock = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 102 | static long main_thread = 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 103 | |
| 104 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 105 | PyEval_InitThreads(void) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 106 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 107 | if (interpreter_lock) |
Sjoerd Mullender | ed59d20 | 1993-01-06 13:36:38 +0000 | [diff] [blame] | 108 | return; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 109 | _PyThread_Started = 1; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 110 | interpreter_lock = PyThread_allocate_lock(); |
| 111 | PyThread_acquire_lock(interpreter_lock, 1); |
| 112 | main_thread = PyThread_get_thread_ident(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 113 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 114 | |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 115 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 116 | PyEval_AcquireLock(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 117 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 118 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 122 | PyEval_ReleaseLock(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 123 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 124 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 128 | PyEval_AcquireThread(PyThreadState *tstate) |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 129 | { |
| 130 | if (tstate == NULL) |
| 131 | Py_FatalError("PyEval_AcquireThread: NULL new thread state"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 132 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 133 | if (PyThreadState_Swap(tstate) != NULL) |
| 134 | Py_FatalError( |
| 135 | "PyEval_AcquireThread: non-NULL old thread state"); |
| 136 | } |
| 137 | |
| 138 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 139 | PyEval_ReleaseThread(PyThreadState *tstate) |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 140 | { |
| 141 | if (tstate == NULL) |
| 142 | Py_FatalError("PyEval_ReleaseThread: NULL thread state"); |
| 143 | if (PyThreadState_Swap(NULL) != tstate) |
| 144 | Py_FatalError("PyEval_ReleaseThread: wrong thread state"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 145 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 146 | } |
Guido van Rossum | fee3a2d | 2000-08-27 17:34:07 +0000 | [diff] [blame] | 147 | |
| 148 | /* This function is called from PyOS_AfterFork to ensure that newly |
| 149 | created child processes don't hold locks referring to threads which |
| 150 | are not running in the child process. (This could also be done using |
| 151 | pthread_atfork mechanism, at least for the pthreads implementation.) */ |
| 152 | |
| 153 | void |
| 154 | PyEval_ReInitThreads(void) |
| 155 | { |
| 156 | if (!interpreter_lock) |
| 157 | return; |
| 158 | /*XXX Can't use PyThread_free_lock here because it does too |
| 159 | much error-checking. Doing this cleanly would require |
| 160 | adding a new function to each thread_*.h. Instead, just |
| 161 | create a new lock and waste a little bit of memory */ |
| 162 | interpreter_lock = PyThread_allocate_lock(); |
| 163 | PyThread_acquire_lock(interpreter_lock, 1); |
| 164 | main_thread = PyThread_get_thread_ident(); |
| 165 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 166 | #endif |
| 167 | |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 168 | /* Functions save_thread and restore_thread are always defined so |
| 169 | dynamically loaded modules needn't be compiled separately for use |
| 170 | with and without threads: */ |
| 171 | |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame] | 172 | PyThreadState * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 173 | PyEval_SaveThread(void) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 174 | { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 175 | PyThreadState *tstate = PyThreadState_Swap(NULL); |
| 176 | if (tstate == NULL) |
| 177 | Py_FatalError("PyEval_SaveThread: NULL tstate"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 178 | #ifdef WITH_THREAD |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 179 | if (interpreter_lock) |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 180 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 181 | #endif |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 182 | return tstate; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 183 | } |
| 184 | |
| 185 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 186 | PyEval_RestoreThread(PyThreadState *tstate) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 187 | { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 188 | if (tstate == NULL) |
| 189 | Py_FatalError("PyEval_RestoreThread: NULL tstate"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 190 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 191 | if (interpreter_lock) { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 192 | int err = errno; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 193 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 194 | errno = err; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 195 | } |
| 196 | #endif |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 197 | PyThreadState_Swap(tstate); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 198 | } |
| 199 | |
| 200 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 201 | /* Mechanism whereby asynchronously executing callbacks (e.g. UNIX |
| 202 | signal handlers or Mac I/O completion routines) can schedule calls |
| 203 | to a function to be called synchronously. |
| 204 | The synchronous function is called with one void* argument. |
| 205 | It should return 0 for success or -1 for failure -- failure should |
| 206 | be accompanied by an exception. |
| 207 | |
| 208 | If registry succeeds, the registry function returns 0; if it fails |
| 209 | (e.g. due to too many pending calls) it returns -1 (without setting |
| 210 | an exception condition). |
| 211 | |
| 212 | Note that because registry may occur from within signal handlers, |
| 213 | or other asynchronous events, calling malloc() is unsafe! |
| 214 | |
| 215 | #ifdef WITH_THREAD |
| 216 | Any thread can schedule pending calls, but only the main thread |
| 217 | will execute them. |
| 218 | #endif |
| 219 | |
| 220 | XXX WARNING! ASYNCHRONOUSLY EXECUTING CODE! |
| 221 | There are two possible race conditions: |
| 222 | (1) nested asynchronous registry calls; |
| 223 | (2) registry calls made while pending calls are being processed. |
| 224 | While (1) is very unlikely, (2) is a real possibility. |
| 225 | The current code is safe against (2), but not against (1). |
| 226 | The safety against (2) is derived from the fact that only one |
| 227 | thread (the main thread) ever takes things out of the queue. |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 228 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 229 | XXX Darn! With the advent of thread state, we should have an array |
| 230 | of pending calls per thread in the thread state! Later... |
| 231 | */ |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 232 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 233 | #define NPENDINGCALLS 32 |
| 234 | static struct { |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 235 | int (*func)(void *); |
| 236 | void *arg; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 237 | } pendingcalls[NPENDINGCALLS]; |
| 238 | static volatile int pendingfirst = 0; |
| 239 | static volatile int pendinglast = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 240 | static volatile int things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 241 | |
| 242 | int |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 243 | Py_AddPendingCall(int (*func)(void *), void *arg) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 244 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 245 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 246 | int i, j; |
| 247 | /* XXX Begin critical section */ |
| 248 | /* XXX If you want this to be safe against nested |
| 249 | XXX asynchronous calls, you'll have to work harder! */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 250 | if (busy) |
| 251 | return -1; |
| 252 | busy = 1; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 253 | i = pendinglast; |
| 254 | j = (i + 1) % NPENDINGCALLS; |
| 255 | if (j == pendingfirst) |
| 256 | return -1; /* Queue full */ |
| 257 | pendingcalls[i].func = func; |
| 258 | pendingcalls[i].arg = arg; |
| 259 | pendinglast = j; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 260 | things_to_do = 1; /* Signal main loop */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 261 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 262 | /* XXX End critical section */ |
| 263 | return 0; |
| 264 | } |
| 265 | |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 266 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 267 | Py_MakePendingCalls(void) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 268 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 269 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 270 | #ifdef WITH_THREAD |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 271 | if (main_thread && PyThread_get_thread_ident() != main_thread) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 272 | return 0; |
| 273 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 274 | if (busy) |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 275 | return 0; |
| 276 | busy = 1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 277 | things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 278 | for (;;) { |
| 279 | int i; |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 280 | int (*func)(void *); |
| 281 | void *arg; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 282 | i = pendingfirst; |
| 283 | if (i == pendinglast) |
| 284 | break; /* Queue empty */ |
| 285 | func = pendingcalls[i].func; |
| 286 | arg = pendingcalls[i].arg; |
| 287 | pendingfirst = (i + 1) % NPENDINGCALLS; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 288 | if (func(arg) < 0) { |
| 289 | busy = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 290 | things_to_do = 1; /* We're not done yet */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 291 | return -1; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 292 | } |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 293 | } |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 294 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 295 | return 0; |
| 296 | } |
| 297 | |
| 298 | |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 299 | /* The interpreter's recursion limit */ |
| 300 | |
Guido van Rossum | 349ff6f | 2000-09-01 01:52:08 +0000 | [diff] [blame] | 301 | static int recursion_limit = 1000; |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 302 | |
Vladimir Marangozov | 7bd25be | 2000-09-01 11:07:19 +0000 | [diff] [blame] | 303 | int |
| 304 | Py_GetRecursionLimit(void) |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 305 | { |
| 306 | return recursion_limit; |
| 307 | } |
| 308 | |
Vladimir Marangozov | 7bd25be | 2000-09-01 11:07:19 +0000 | [diff] [blame] | 309 | void |
| 310 | Py_SetRecursionLimit(int new_limit) |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 311 | { |
| 312 | recursion_limit = new_limit; |
| 313 | } |
| 314 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 315 | /* Status code for main loop (reason for stack unwind) */ |
| 316 | |
| 317 | enum why_code { |
| 318 | WHY_NOT, /* No error */ |
| 319 | WHY_EXCEPTION, /* Exception occurred */ |
| 320 | WHY_RERAISE, /* Exception re-raised by 'finally' */ |
| 321 | WHY_RETURN, /* 'return' statement */ |
| 322 | WHY_BREAK /* 'break' statement */ |
| 323 | }; |
| 324 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 325 | static enum why_code do_raise(PyObject *, PyObject *, PyObject *); |
| 326 | static int unpack_sequence(PyObject *, int, PyObject **); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 327 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 328 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 329 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 330 | PyEval_EvalCode(PyCodeObject *co, PyObject *globals, PyObject *locals) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 331 | { |
| 332 | return eval_code2(co, |
| 333 | globals, locals, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 334 | (PyObject **)NULL, 0, |
| 335 | (PyObject **)NULL, 0, |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 336 | (PyObject **)NULL, 0); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 337 | } |
| 338 | |
| 339 | |
| 340 | /* Interpreter main loop */ |
| 341 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 342 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 343 | eval_code2(PyCodeObject *co, PyObject *globals, PyObject *locals, |
| 344 | PyObject **args, int argcount, PyObject **kws, int kwcount, |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 345 | PyObject **defs, int defcount) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 346 | { |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 347 | #ifdef DXPAIRS |
| 348 | int lastopcode = 0; |
| 349 | #endif |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 350 | PyObject **stack_pointer; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 351 | register unsigned char *next_instr; |
Moshe Zadka | aa39a7e | 2000-08-07 06:34:45 +0000 | [diff] [blame] | 352 | register int opcode=0; /* Current opcode */ |
| 353 | register int oparg=0; /* Current opcode argument, if any */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 354 | register enum why_code why; /* Reason for block stack unwind */ |
| 355 | register int err; /* Error status -- nonzero if error */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 356 | register PyObject *x; /* Result object -- NULL if error */ |
| 357 | register PyObject *v; /* Temporary objects popped off stack */ |
| 358 | register PyObject *w; |
| 359 | register PyObject *u; |
| 360 | register PyObject *t; |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 361 | register PyObject *stream = NULL; /* for PRINT opcodes */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 362 | register PyFrameObject *f; /* Current frame */ |
Guido van Rossum | 50cd348 | 1998-11-17 17:02:51 +0000 | [diff] [blame] | 363 | register PyObject **fastlocals; |
Guido van Rossum | 014518f | 1998-11-23 21:09:51 +0000 | [diff] [blame] | 364 | PyObject *retval = NULL; /* Return value */ |
Guido van Rossum | 885553e | 1998-12-21 18:33:30 +0000 | [diff] [blame] | 365 | PyThreadState *tstate = PyThreadState_GET(); |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 366 | unsigned char *first_instr; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 367 | #ifdef LLTRACE |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 368 | int lltrace; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 369 | #endif |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 370 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 371 | /* 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] | 372 | char *filename = PyString_AsString(co->co_filename); |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 373 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 374 | |
| 375 | /* Code access macros */ |
| 376 | |
| 377 | #define GETCONST(i) Getconst(f, i) |
| 378 | #define GETNAME(i) Getname(f, i) |
| 379 | #define GETNAMEV(i) Getnamev(f, i) |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 380 | #define INSTR_OFFSET() (next_instr - first_instr) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 381 | #define NEXTOP() (*next_instr++) |
| 382 | #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] | 383 | #define JUMPTO(x) (next_instr = first_instr + (x)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 384 | #define JUMPBY(x) (next_instr += (x)) |
| 385 | |
| 386 | /* Stack manipulation macros */ |
| 387 | |
| 388 | #define STACK_LEVEL() (stack_pointer - f->f_valuestack) |
| 389 | #define EMPTY() (STACK_LEVEL() == 0) |
| 390 | #define TOP() (stack_pointer[-1]) |
| 391 | #define BASIC_PUSH(v) (*stack_pointer++ = (v)) |
| 392 | #define BASIC_POP() (*--stack_pointer) |
| 393 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 394 | #ifdef LLTRACE |
| 395 | #define PUSH(v) (BASIC_PUSH(v), lltrace && prtrace(TOP(), "push")) |
| 396 | #define POP() (lltrace && prtrace(TOP(), "pop"), BASIC_POP()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 397 | #else |
| 398 | #define PUSH(v) BASIC_PUSH(v) |
| 399 | #define POP() BASIC_POP() |
| 400 | #endif |
| 401 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 402 | /* Local variable macros */ |
| 403 | |
| 404 | #define GETLOCAL(i) (fastlocals[i]) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 405 | #define SETLOCAL(i, value) do { Py_XDECREF(GETLOCAL(i)); \ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 406 | GETLOCAL(i) = value; } while (0) |
| 407 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 408 | /* Start of code */ |
| 409 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 410 | #ifdef USE_STACKCHECK |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 411 | if (tstate->recursion_depth%10 == 0 && PyOS_CheckStack()) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 412 | PyErr_SetString(PyExc_MemoryError, "Stack overflow"); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 413 | return NULL; |
| 414 | } |
| 415 | #endif |
| 416 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 417 | if (globals == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 418 | PyErr_SetString(PyExc_SystemError, "eval_code2: NULL globals"); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 419 | return NULL; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 420 | } |
| 421 | |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 422 | #ifdef LLTRACE |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 423 | lltrace = PyDict_GetItemString(globals, "__lltrace__") != NULL; |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 424 | #endif |
| 425 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 426 | f = PyFrame_New( |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 427 | tstate, /*back*/ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 428 | co, /*code*/ |
| 429 | globals, /*globals*/ |
Guido van Rossum | 7683602 | 1997-01-20 04:26:20 +0000 | [diff] [blame] | 430 | locals); /*locals*/ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 431 | if (f == NULL) |
| 432 | return NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 433 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 434 | tstate->frame = f; |
Guido van Rossum | deb0c5e | 1997-01-27 23:42:36 +0000 | [diff] [blame] | 435 | fastlocals = f->f_localsplus; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 436 | |
| 437 | if (co->co_argcount > 0 || |
| 438 | co->co_flags & (CO_VARARGS | CO_VARKEYWORDS)) { |
| 439 | int i; |
| 440 | int n = argcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 441 | PyObject *kwdict = NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 442 | if (co->co_flags & CO_VARKEYWORDS) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 443 | kwdict = PyDict_New(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 444 | if (kwdict == NULL) |
| 445 | goto fail; |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 446 | i = co->co_argcount; |
| 447 | if (co->co_flags & CO_VARARGS) |
| 448 | i++; |
| 449 | SETLOCAL(i, kwdict); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 450 | } |
| 451 | if (argcount > co->co_argcount) { |
| 452 | if (!(co->co_flags & CO_VARARGS)) { |
Guido van Rossum | df9db1e | 1997-11-19 16:05:40 +0000 | [diff] [blame] | 453 | PyErr_Format(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 454 | "too many arguments to %s(); " |
| 455 | "expected %d, got %d", |
| 456 | PyString_AsString(co->co_name), |
| 457 | co->co_argcount, argcount); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 458 | goto fail; |
| 459 | } |
| 460 | n = co->co_argcount; |
| 461 | } |
| 462 | for (i = 0; i < n; i++) { |
| 463 | x = args[i]; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 464 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 465 | SETLOCAL(i, x); |
| 466 | } |
| 467 | if (co->co_flags & CO_VARARGS) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 468 | u = PyTuple_New(argcount - n); |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 469 | if (u == NULL) |
| 470 | goto fail; |
| 471 | SETLOCAL(co->co_argcount, u); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 472 | for (i = n; i < argcount; i++) { |
| 473 | x = args[i]; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 474 | Py_INCREF(x); |
| 475 | PyTuple_SET_ITEM(u, i-n, x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 476 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 477 | } |
| 478 | for (i = 0; i < kwcount; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 479 | PyObject *keyword = kws[2*i]; |
| 480 | PyObject *value = kws[2*i + 1]; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 481 | int j; |
Guido van Rossum | 25da5be | 1999-10-26 00:12:20 +0000 | [diff] [blame] | 482 | if (keyword == NULL || !PyString_Check(keyword)) { |
| 483 | PyErr_SetString(PyExc_TypeError, |
| 484 | "keywords must be strings"); |
| 485 | goto fail; |
| 486 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 487 | /* XXX slow -- speed up using dictionary? */ |
| 488 | for (j = 0; j < co->co_argcount; j++) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 489 | PyObject *nm = PyTuple_GET_ITEM( |
| 490 | co->co_varnames, j); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 491 | if (PyObject_Compare(keyword, nm) == 0) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 492 | break; |
| 493 | } |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 494 | /* Check errors from Compare */ |
| 495 | if (PyErr_Occurred()) |
| 496 | goto fail; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 497 | if (j >= co->co_argcount) { |
| 498 | if (kwdict == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 499 | PyErr_Format(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 500 | "%.200s() got an unexpected " |
| 501 | "keyword argument '%.400s'", |
| 502 | PyString_AsString(co->co_name), |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 503 | PyString_AsString(keyword)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 504 | goto fail; |
| 505 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 506 | PyDict_SetItem(kwdict, keyword, value); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 507 | } |
| 508 | else { |
| 509 | if (GETLOCAL(j) != NULL) { |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 510 | PyErr_Format(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 511 | "keyword parameter '%.400s' " |
| 512 | "redefined in call to %.200s()", |
| 513 | PyString_AsString(keyword), |
| 514 | PyString_AsString(co->co_name)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 515 | goto fail; |
| 516 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 517 | Py_INCREF(value); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 518 | SETLOCAL(j, value); |
| 519 | } |
| 520 | } |
| 521 | if (argcount < co->co_argcount) { |
| 522 | int m = co->co_argcount - defcount; |
| 523 | for (i = argcount; i < m; i++) { |
| 524 | if (GETLOCAL(i) == NULL) { |
Guido van Rossum | df9db1e | 1997-11-19 16:05:40 +0000 | [diff] [blame] | 525 | PyErr_Format(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 526 | "not enough arguments to " |
| 527 | "%.200s(); expected %d, got %d", |
| 528 | PyString_AsString(co->co_name), |
| 529 | m, i); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 530 | goto fail; |
| 531 | } |
| 532 | } |
| 533 | if (n > m) |
| 534 | i = n - m; |
| 535 | else |
| 536 | i = 0; |
| 537 | for (; i < defcount; i++) { |
| 538 | if (GETLOCAL(m+i) == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 539 | PyObject *def = defs[i]; |
| 540 | Py_INCREF(def); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 541 | SETLOCAL(m+i, def); |
| 542 | } |
| 543 | } |
| 544 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 545 | } |
| 546 | else { |
| 547 | if (argcount > 0 || kwcount > 0) { |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 548 | PyErr_Format(PyExc_TypeError, |
| 549 | "%.200s() expected no arguments", |
| 550 | PyString_AsString(co->co_name)); |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 551 | goto fail; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 552 | } |
| 553 | } |
| 554 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 555 | if (tstate->sys_tracefunc != NULL) { |
| 556 | /* tstate->sys_tracefunc, if defined, is a function that |
| 557 | will be called on *every* entry to a code block. |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 558 | Its return value, if not None, is a function that |
| 559 | will be called at the start of each executed line |
| 560 | of code. (Actually, the function must return |
| 561 | itself in order to continue tracing.) |
| 562 | The trace functions are called with three arguments: |
| 563 | a pointer to the current frame, a string indicating |
| 564 | why the function is called, and an argument which |
| 565 | depends on the situation. The global trace function |
| 566 | (sys.trace) is also called whenever an exception |
| 567 | is detected. */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 568 | if (call_trace(&tstate->sys_tracefunc, |
| 569 | &f->f_trace, f, "call", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 570 | Py_None/*XXX how to compute arguments now?*/)) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 571 | /* Trace function raised an error */ |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 572 | goto fail; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 573 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 574 | } |
| 575 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 576 | if (tstate->sys_profilefunc != NULL) { |
| 577 | /* Similar for sys_profilefunc, except it needn't return |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 578 | itself and isn't called for "line" events */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 579 | if (call_trace(&tstate->sys_profilefunc, |
| 580 | (PyObject**)0, f, "call", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 581 | Py_None/*XXX*/)) { |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 582 | goto fail; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 583 | } |
| 584 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 585 | |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 586 | if (++tstate->recursion_depth > recursion_limit) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 587 | --tstate->recursion_depth; |
| 588 | PyErr_SetString(PyExc_RuntimeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 589 | "maximum recursion depth exceeded"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 590 | tstate->frame = f->f_back; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 591 | Py_DECREF(f); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 592 | return NULL; |
| 593 | } |
| 594 | |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 595 | _PyCode_GETCODEPTR(co, &first_instr); |
| 596 | next_instr = first_instr; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 597 | stack_pointer = f->f_valuestack; |
| 598 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 599 | why = WHY_NOT; |
| 600 | err = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 601 | x = Py_None; /* Not a reference, just anything non-NULL */ |
Fred Drake | 48fba73 | 2000-10-11 13:54:07 +0000 | [diff] [blame] | 602 | w = NULL; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 603 | |
| 604 | for (;;) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 605 | /* Do periodic things. Doing this every time through |
| 606 | the loop would add too much overhead, so we do it |
| 607 | only every Nth instruction. We also do it if |
| 608 | ``things_to_do'' is set, i.e. when an asynchronous |
| 609 | event needs attention (e.g. a signal handler or |
| 610 | async I/O handler); see Py_AddPendingCall() and |
| 611 | Py_MakePendingCalls() above. */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 612 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 613 | if (things_to_do || --tstate->ticker < 0) { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 614 | tstate->ticker = tstate->interp->checkinterval; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 615 | if (things_to_do) { |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 616 | if (Py_MakePendingCalls() < 0) { |
| 617 | why = WHY_EXCEPTION; |
| 618 | goto on_error; |
| 619 | } |
| 620 | } |
Guido van Rossum | df0d00e | 1997-05-20 15:57:49 +0000 | [diff] [blame] | 621 | #if !defined(HAVE_SIGNAL_H) || defined(macintosh) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 622 | /* If we have true signals, the signal handler |
| 623 | will call Py_AddPendingCall() so we don't |
| 624 | have to call sigcheck(). On the Mac and |
| 625 | DOS, alas, we have to call it. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 626 | if (PyErr_CheckSignals()) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 627 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 628 | goto on_error; |
| 629 | } |
Guido van Rossum | 70d4478 | 1997-01-21 06:15:24 +0000 | [diff] [blame] | 630 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 631 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 632 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 633 | if (interpreter_lock) { |
| 634 | /* Give another thread a chance */ |
| 635 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 636 | if (PyThreadState_Swap(NULL) != tstate) |
| 637 | Py_FatalError("ceval: tstate mix-up"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 638 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 639 | |
| 640 | /* Other threads may run now */ |
| 641 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 642 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 643 | if (PyThreadState_Swap(tstate) != NULL) |
| 644 | Py_FatalError("ceval: orphan tstate"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 645 | } |
| 646 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 647 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 648 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 649 | /* Extract opcode and argument */ |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 650 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 651 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 652 | f->f_lasti = INSTR_OFFSET(); |
| 653 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 654 | |
| 655 | opcode = NEXTOP(); |
| 656 | if (HAS_ARG(opcode)) |
| 657 | oparg = NEXTARG(); |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 658 | dispatch_opcode: |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 659 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 660 | #ifdef DXPAIRS |
| 661 | dxpairs[lastopcode][opcode]++; |
| 662 | lastopcode = opcode; |
| 663 | #endif |
| 664 | dxp[opcode]++; |
| 665 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 666 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 667 | #ifdef LLTRACE |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 668 | /* Instruction tracing */ |
| 669 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 670 | if (lltrace) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 671 | if (HAS_ARG(opcode)) { |
| 672 | printf("%d: %d, %d\n", |
| 673 | (int) (INSTR_OFFSET() - 3), |
| 674 | opcode, oparg); |
| 675 | } |
| 676 | else { |
| 677 | printf("%d: %d\n", |
| 678 | (int) (INSTR_OFFSET() - 1), opcode); |
| 679 | } |
| 680 | } |
| 681 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 682 | /* Main switch on opcode */ |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 683 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 684 | switch (opcode) { |
| 685 | |
| 686 | /* BEWARE! |
| 687 | It is essential that any operation that fails sets either |
| 688 | x to NULL, err to nonzero, or why to anything but WHY_NOT, |
| 689 | and that no operation that succeeds does this! */ |
| 690 | |
| 691 | /* case STOP_CODE: this is an error! */ |
| 692 | |
| 693 | case POP_TOP: |
| 694 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 695 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 696 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 697 | |
| 698 | case ROT_TWO: |
| 699 | v = POP(); |
| 700 | w = POP(); |
| 701 | PUSH(v); |
| 702 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 703 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 704 | |
| 705 | case ROT_THREE: |
| 706 | v = POP(); |
| 707 | w = POP(); |
| 708 | x = POP(); |
| 709 | PUSH(v); |
| 710 | PUSH(x); |
| 711 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 712 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 713 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 714 | case ROT_FOUR: |
| 715 | u = POP(); |
| 716 | v = POP(); |
| 717 | w = POP(); |
| 718 | x = POP(); |
| 719 | PUSH(u); |
| 720 | PUSH(x); |
| 721 | PUSH(w); |
| 722 | PUSH(v); |
| 723 | continue; |
| 724 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 725 | case DUP_TOP: |
| 726 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 727 | Py_INCREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 728 | PUSH(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 729 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 730 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 731 | case DUP_TOPX: |
| 732 | switch (oparg) { |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 733 | case 1: |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 734 | x = TOP(); |
| 735 | Py_INCREF(x); |
| 736 | PUSH(x); |
| 737 | continue; |
| 738 | case 2: |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 739 | x = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 740 | Py_INCREF(x); |
| 741 | w = TOP(); |
| 742 | Py_INCREF(w); |
| 743 | PUSH(x); |
| 744 | PUSH(w); |
| 745 | PUSH(x); |
| 746 | continue; |
| 747 | case 3: |
| 748 | x = POP(); |
| 749 | Py_INCREF(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 750 | w = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 751 | Py_INCREF(w); |
| 752 | v = TOP(); |
| 753 | Py_INCREF(v); |
| 754 | PUSH(w); |
| 755 | PUSH(x); |
| 756 | PUSH(v); |
| 757 | PUSH(w); |
| 758 | PUSH(x); |
| 759 | continue; |
| 760 | case 4: |
| 761 | x = POP(); |
| 762 | Py_INCREF(x); |
| 763 | w = POP(); |
| 764 | Py_INCREF(w); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 765 | v = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 766 | Py_INCREF(v); |
| 767 | u = TOP(); |
| 768 | Py_INCREF(u); |
| 769 | PUSH(v); |
| 770 | PUSH(w); |
| 771 | PUSH(x); |
| 772 | PUSH(u); |
| 773 | PUSH(v); |
| 774 | PUSH(w); |
| 775 | PUSH(x); |
| 776 | continue; |
| 777 | case 5: |
| 778 | x = POP(); |
| 779 | Py_INCREF(x); |
| 780 | w = POP(); |
| 781 | Py_INCREF(w); |
| 782 | v = POP(); |
| 783 | Py_INCREF(v); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 784 | u = POP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 785 | Py_INCREF(u); |
| 786 | t = TOP(); |
| 787 | Py_INCREF(t); |
| 788 | PUSH(u); |
| 789 | PUSH(v); |
| 790 | PUSH(w); |
| 791 | PUSH(x); |
| 792 | PUSH(t); |
| 793 | PUSH(u); |
| 794 | PUSH(v); |
| 795 | PUSH(w); |
| 796 | PUSH(x); |
| 797 | continue; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 798 | default: |
Thomas Wouters | 0be483f | 2000-10-11 23:26:11 +0000 | [diff] [blame] | 799 | Py_FatalError("invalid argument to DUP_TOPX" |
| 800 | " (bytecode corruption?)"); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 801 | } |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 802 | break; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 803 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 804 | case UNARY_POSITIVE: |
| 805 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 806 | x = PyNumber_Positive(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 807 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 808 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 809 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 810 | break; |
| 811 | |
| 812 | case UNARY_NEGATIVE: |
| 813 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 814 | x = PyNumber_Negative(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 815 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 816 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 817 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 818 | break; |
| 819 | |
| 820 | case UNARY_NOT: |
| 821 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 822 | err = PyObject_IsTrue(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 823 | Py_DECREF(v); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 824 | if (err == 0) { |
| 825 | Py_INCREF(Py_True); |
| 826 | PUSH(Py_True); |
| 827 | continue; |
| 828 | } |
| 829 | else if (err > 0) { |
| 830 | Py_INCREF(Py_False); |
| 831 | PUSH(Py_False); |
| 832 | err = 0; |
| 833 | continue; |
| 834 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 835 | break; |
| 836 | |
| 837 | case UNARY_CONVERT: |
| 838 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 839 | x = PyObject_Repr(v); |
| 840 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 841 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 842 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 843 | break; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 844 | |
| 845 | case UNARY_INVERT: |
| 846 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 847 | x = PyNumber_Invert(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 848 | Py_DECREF(v); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 849 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 850 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 851 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 852 | |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 853 | case BINARY_POWER: |
| 854 | w = POP(); |
| 855 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 856 | x = PyNumber_Power(v, w, Py_None); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 857 | Py_DECREF(v); |
| 858 | Py_DECREF(w); |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 859 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 860 | if (x != NULL) continue; |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 861 | break; |
| 862 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 863 | case BINARY_MULTIPLY: |
| 864 | w = POP(); |
| 865 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 866 | x = PyNumber_Multiply(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 867 | Py_DECREF(v); |
| 868 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 869 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 870 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 871 | break; |
| 872 | |
| 873 | case BINARY_DIVIDE: |
| 874 | w = POP(); |
| 875 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 876 | x = PyNumber_Divide(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 877 | Py_DECREF(v); |
| 878 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 879 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 880 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 881 | break; |
| 882 | |
| 883 | case BINARY_MODULO: |
| 884 | w = POP(); |
| 885 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 886 | x = PyNumber_Remainder(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 887 | Py_DECREF(v); |
| 888 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 889 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 890 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 891 | break; |
| 892 | |
| 893 | case BINARY_ADD: |
| 894 | w = POP(); |
| 895 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 896 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 897 | /* INLINE: int + int */ |
| 898 | register long a, b, i; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 899 | a = PyInt_AS_LONG(v); |
| 900 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 901 | i = a + b; |
| 902 | if ((i^a) < 0 && (i^b) < 0) { |
| 903 | PyErr_SetString(PyExc_OverflowError, |
| 904 | "integer addition"); |
| 905 | x = NULL; |
| 906 | } |
| 907 | else |
| 908 | x = PyInt_FromLong(i); |
| 909 | } |
| 910 | else |
| 911 | x = PyNumber_Add(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 912 | Py_DECREF(v); |
| 913 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 914 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 915 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 916 | break; |
| 917 | |
| 918 | case BINARY_SUBTRACT: |
| 919 | w = POP(); |
| 920 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 921 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 922 | /* INLINE: int - int */ |
| 923 | register long a, b, i; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 924 | a = PyInt_AS_LONG(v); |
| 925 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 926 | i = a - b; |
| 927 | if ((i^a) < 0 && (i^~b) < 0) { |
| 928 | PyErr_SetString(PyExc_OverflowError, |
| 929 | "integer subtraction"); |
| 930 | x = NULL; |
| 931 | } |
| 932 | else |
| 933 | x = PyInt_FromLong(i); |
| 934 | } |
| 935 | else |
| 936 | x = PyNumber_Subtract(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 937 | Py_DECREF(v); |
| 938 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 939 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 940 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 941 | break; |
| 942 | |
| 943 | case BINARY_SUBSCR: |
| 944 | w = POP(); |
| 945 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 946 | if (PyList_Check(v) && PyInt_Check(w)) { |
| 947 | /* INLINE: list[int] */ |
| 948 | long i = PyInt_AsLong(w); |
| 949 | if (i < 0) |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 950 | i += PyList_GET_SIZE(v); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 951 | if (i < 0 || |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 952 | i >= PyList_GET_SIZE(v)) { |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 953 | PyErr_SetString(PyExc_IndexError, |
| 954 | "list index out of range"); |
| 955 | x = NULL; |
| 956 | } |
| 957 | else { |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 958 | x = PyList_GET_ITEM(v, i); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 959 | Py_INCREF(x); |
| 960 | } |
| 961 | } |
| 962 | else |
| 963 | x = PyObject_GetItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 964 | Py_DECREF(v); |
| 965 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 966 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 967 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 968 | break; |
| 969 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 970 | case BINARY_LSHIFT: |
| 971 | w = POP(); |
| 972 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 973 | x = PyNumber_Lshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 974 | Py_DECREF(v); |
| 975 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 976 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 977 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 978 | break; |
| 979 | |
| 980 | case BINARY_RSHIFT: |
| 981 | w = POP(); |
| 982 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 983 | x = PyNumber_Rshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 984 | Py_DECREF(v); |
| 985 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 986 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 987 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 988 | break; |
| 989 | |
| 990 | case BINARY_AND: |
| 991 | w = POP(); |
| 992 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 993 | x = PyNumber_And(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 994 | Py_DECREF(v); |
| 995 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 996 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 997 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 998 | break; |
| 999 | |
| 1000 | case BINARY_XOR: |
| 1001 | w = POP(); |
| 1002 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1003 | x = PyNumber_Xor(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1004 | Py_DECREF(v); |
| 1005 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1006 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1007 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1008 | break; |
| 1009 | |
| 1010 | case BINARY_OR: |
| 1011 | w = POP(); |
| 1012 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1013 | x = PyNumber_Or(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1014 | Py_DECREF(v); |
| 1015 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1016 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1017 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1018 | break; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1019 | |
| 1020 | case INPLACE_POWER: |
| 1021 | w = POP(); |
| 1022 | v = POP(); |
| 1023 | x = PyNumber_InPlacePower(v, w, Py_None); |
| 1024 | Py_DECREF(v); |
| 1025 | Py_DECREF(w); |
| 1026 | PUSH(x); |
| 1027 | if (x != NULL) continue; |
| 1028 | break; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1029 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1030 | case INPLACE_MULTIPLY: |
| 1031 | w = POP(); |
| 1032 | v = POP(); |
| 1033 | x = PyNumber_InPlaceMultiply(v, w); |
| 1034 | Py_DECREF(v); |
| 1035 | Py_DECREF(w); |
| 1036 | PUSH(x); |
| 1037 | if (x != NULL) continue; |
| 1038 | break; |
| 1039 | |
| 1040 | case INPLACE_DIVIDE: |
| 1041 | w = POP(); |
| 1042 | v = POP(); |
| 1043 | x = PyNumber_InPlaceDivide(v, w); |
| 1044 | Py_DECREF(v); |
| 1045 | Py_DECREF(w); |
| 1046 | PUSH(x); |
| 1047 | if (x != NULL) continue; |
| 1048 | break; |
| 1049 | |
| 1050 | case INPLACE_MODULO: |
| 1051 | w = POP(); |
| 1052 | v = POP(); |
| 1053 | x = PyNumber_InPlaceRemainder(v, w); |
| 1054 | Py_DECREF(v); |
| 1055 | Py_DECREF(w); |
| 1056 | PUSH(x); |
| 1057 | if (x != NULL) continue; |
| 1058 | break; |
| 1059 | |
| 1060 | case INPLACE_ADD: |
| 1061 | w = POP(); |
| 1062 | v = POP(); |
| 1063 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1064 | /* INLINE: int + int */ |
| 1065 | register long a, b, i; |
| 1066 | a = PyInt_AS_LONG(v); |
| 1067 | b = PyInt_AS_LONG(w); |
| 1068 | i = a + b; |
| 1069 | if ((i^a) < 0 && (i^b) < 0) { |
| 1070 | PyErr_SetString(PyExc_OverflowError, |
| 1071 | "integer addition"); |
| 1072 | x = NULL; |
| 1073 | } |
| 1074 | else |
| 1075 | x = PyInt_FromLong(i); |
| 1076 | } |
| 1077 | else |
| 1078 | x = PyNumber_InPlaceAdd(v, w); |
| 1079 | Py_DECREF(v); |
| 1080 | Py_DECREF(w); |
| 1081 | PUSH(x); |
| 1082 | if (x != NULL) continue; |
| 1083 | break; |
| 1084 | |
| 1085 | case INPLACE_SUBTRACT: |
| 1086 | w = POP(); |
| 1087 | v = POP(); |
| 1088 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1089 | /* INLINE: int - int */ |
| 1090 | register long a, b, i; |
| 1091 | a = PyInt_AS_LONG(v); |
| 1092 | b = PyInt_AS_LONG(w); |
| 1093 | i = a - b; |
| 1094 | if ((i^a) < 0 && (i^~b) < 0) { |
| 1095 | PyErr_SetString(PyExc_OverflowError, |
| 1096 | "integer subtraction"); |
| 1097 | x = NULL; |
| 1098 | } |
| 1099 | else |
| 1100 | x = PyInt_FromLong(i); |
| 1101 | } |
| 1102 | else |
| 1103 | x = PyNumber_InPlaceSubtract(v, w); |
| 1104 | Py_DECREF(v); |
| 1105 | Py_DECREF(w); |
| 1106 | PUSH(x); |
| 1107 | if (x != NULL) continue; |
| 1108 | break; |
| 1109 | |
| 1110 | case INPLACE_LSHIFT: |
| 1111 | w = POP(); |
| 1112 | v = POP(); |
| 1113 | x = PyNumber_InPlaceLshift(v, w); |
| 1114 | Py_DECREF(v); |
| 1115 | Py_DECREF(w); |
| 1116 | PUSH(x); |
| 1117 | if (x != NULL) continue; |
| 1118 | break; |
| 1119 | |
| 1120 | case INPLACE_RSHIFT: |
| 1121 | w = POP(); |
| 1122 | v = POP(); |
| 1123 | x = PyNumber_InPlaceRshift(v, w); |
| 1124 | Py_DECREF(v); |
| 1125 | Py_DECREF(w); |
| 1126 | PUSH(x); |
| 1127 | if (x != NULL) continue; |
| 1128 | break; |
| 1129 | |
| 1130 | case INPLACE_AND: |
| 1131 | w = POP(); |
| 1132 | v = POP(); |
| 1133 | x = PyNumber_InPlaceAnd(v, w); |
| 1134 | Py_DECREF(v); |
| 1135 | Py_DECREF(w); |
| 1136 | PUSH(x); |
| 1137 | if (x != NULL) continue; |
| 1138 | break; |
| 1139 | |
| 1140 | case INPLACE_XOR: |
| 1141 | w = POP(); |
| 1142 | v = POP(); |
| 1143 | x = PyNumber_InPlaceXor(v, w); |
| 1144 | Py_DECREF(v); |
| 1145 | Py_DECREF(w); |
| 1146 | PUSH(x); |
| 1147 | if (x != NULL) continue; |
| 1148 | break; |
| 1149 | |
| 1150 | case INPLACE_OR: |
| 1151 | w = POP(); |
| 1152 | v = POP(); |
| 1153 | x = PyNumber_InPlaceOr(v, w); |
| 1154 | Py_DECREF(v); |
| 1155 | Py_DECREF(w); |
| 1156 | PUSH(x); |
| 1157 | if (x != NULL) continue; |
| 1158 | break; |
| 1159 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1160 | case SLICE+0: |
| 1161 | case SLICE+1: |
| 1162 | case SLICE+2: |
| 1163 | case SLICE+3: |
| 1164 | if ((opcode-SLICE) & 2) |
| 1165 | w = POP(); |
| 1166 | else |
| 1167 | w = NULL; |
| 1168 | if ((opcode-SLICE) & 1) |
| 1169 | v = POP(); |
| 1170 | else |
| 1171 | v = NULL; |
| 1172 | u = POP(); |
| 1173 | x = apply_slice(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1174 | Py_DECREF(u); |
| 1175 | Py_XDECREF(v); |
| 1176 | Py_XDECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1177 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1178 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1179 | break; |
| 1180 | |
| 1181 | case STORE_SLICE+0: |
| 1182 | case STORE_SLICE+1: |
| 1183 | case STORE_SLICE+2: |
| 1184 | case STORE_SLICE+3: |
| 1185 | if ((opcode-STORE_SLICE) & 2) |
| 1186 | w = POP(); |
| 1187 | else |
| 1188 | w = NULL; |
| 1189 | if ((opcode-STORE_SLICE) & 1) |
| 1190 | v = POP(); |
| 1191 | else |
| 1192 | v = NULL; |
| 1193 | u = POP(); |
| 1194 | t = POP(); |
| 1195 | err = assign_slice(u, v, w, t); /* u[v:w] = t */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1196 | Py_DECREF(t); |
| 1197 | Py_DECREF(u); |
| 1198 | Py_XDECREF(v); |
| 1199 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1200 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1201 | break; |
| 1202 | |
| 1203 | case DELETE_SLICE+0: |
| 1204 | case DELETE_SLICE+1: |
| 1205 | case DELETE_SLICE+2: |
| 1206 | case DELETE_SLICE+3: |
| 1207 | if ((opcode-DELETE_SLICE) & 2) |
| 1208 | w = POP(); |
| 1209 | else |
| 1210 | w = NULL; |
| 1211 | if ((opcode-DELETE_SLICE) & 1) |
| 1212 | v = POP(); |
| 1213 | else |
| 1214 | v = NULL; |
| 1215 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1216 | err = assign_slice(u, v, w, (PyObject *)NULL); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1217 | /* del u[v:w] */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1218 | Py_DECREF(u); |
| 1219 | Py_XDECREF(v); |
| 1220 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1221 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1222 | break; |
| 1223 | |
| 1224 | case STORE_SUBSCR: |
| 1225 | w = POP(); |
| 1226 | v = POP(); |
| 1227 | u = POP(); |
| 1228 | /* v[w] = u */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1229 | err = PyObject_SetItem(v, w, u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1230 | Py_DECREF(u); |
| 1231 | Py_DECREF(v); |
| 1232 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1233 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1234 | break; |
| 1235 | |
| 1236 | case DELETE_SUBSCR: |
| 1237 | w = POP(); |
| 1238 | v = POP(); |
| 1239 | /* del v[w] */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1240 | err = PyObject_DelItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1241 | Py_DECREF(v); |
| 1242 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1243 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1244 | break; |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1245 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1246 | case PRINT_EXPR: |
| 1247 | v = POP(); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame^] | 1248 | w = PySys_GetObject("displayhook"); |
| 1249 | if (w == NULL) { |
| 1250 | PyErr_SetString(PyExc_RuntimeError, |
| 1251 | "lost sys.displayhook"); |
| 1252 | err = -1; |
| 1253 | } |
| 1254 | if (err == 0) { |
| 1255 | x = Py_BuildValue("(O)", v); |
| 1256 | if (x == NULL) |
| 1257 | err = -1; |
| 1258 | } |
| 1259 | if (err == 0) { |
| 1260 | w = PyEval_CallObject(w, x); |
| 1261 | if (w == NULL) |
| 1262 | err = -1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1263 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1264 | Py_DECREF(v); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame^] | 1265 | Py_XDECREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1266 | break; |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame^] | 1267 | |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1268 | case PRINT_ITEM_TO: |
| 1269 | w = stream = POP(); |
| 1270 | /* fall through to PRINT_ITEM */ |
| 1271 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1272 | case PRINT_ITEM: |
| 1273 | v = POP(); |
Barry Warsaw | 093abe0 | 2000-08-29 04:56:13 +0000 | [diff] [blame] | 1274 | if (stream == NULL || stream == Py_None) { |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1275 | w = PySys_GetObject("stdout"); |
| 1276 | if (w == NULL) { |
| 1277 | PyErr_SetString(PyExc_RuntimeError, |
| 1278 | "lost sys.stdout"); |
| 1279 | err = -1; |
| 1280 | } |
Guido van Rossum | 8f18320 | 1997-12-31 05:53:15 +0000 | [diff] [blame] | 1281 | } |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1282 | if (w != NULL && PyFile_SoftSpace(w, 1)) |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 1283 | err = PyFile_WriteString(" ", w); |
| 1284 | if (err == 0) |
| 1285 | err = PyFile_WriteObject(v, w, Py_PRINT_RAW); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1286 | if (err == 0 && PyString_Check(v)) { |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1287 | /* XXX move into writeobject() ? */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1288 | char *s = PyString_AsString(v); |
| 1289 | int len = PyString_Size(v); |
Guido van Rossum | 7f7f274 | 1995-02-10 17:01:56 +0000 | [diff] [blame] | 1290 | if (len > 0 && |
| 1291 | isspace(Py_CHARMASK(s[len-1])) && |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1292 | s[len-1] != ' ') |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1293 | PyFile_SoftSpace(w, 0); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1294 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1295 | Py_DECREF(v); |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1296 | Py_XDECREF(stream); |
| 1297 | stream = NULL; |
| 1298 | if (err == 0) |
| 1299 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1300 | break; |
| 1301 | |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1302 | case PRINT_NEWLINE_TO: |
| 1303 | w = stream = POP(); |
| 1304 | /* fall through to PRINT_NEWLINE */ |
| 1305 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1306 | case PRINT_NEWLINE: |
Barry Warsaw | 093abe0 | 2000-08-29 04:56:13 +0000 | [diff] [blame] | 1307 | if (stream == NULL || stream == Py_None) { |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1308 | w = PySys_GetObject("stdout"); |
| 1309 | if (w == NULL) |
| 1310 | PyErr_SetString(PyExc_RuntimeError, |
| 1311 | "lost sys.stdout"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1312 | } |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1313 | if (w != NULL) { |
| 1314 | err = PyFile_WriteString("\n", w); |
| 1315 | if (err == 0) |
| 1316 | PyFile_SoftSpace(w, 0); |
| 1317 | } |
| 1318 | Py_XDECREF(stream); |
| 1319 | stream = NULL; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1320 | break; |
| 1321 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1322 | |
| 1323 | #ifdef CASE_TOO_BIG |
| 1324 | default: switch (opcode) { |
| 1325 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1326 | case BREAK_LOOP: |
| 1327 | why = WHY_BREAK; |
| 1328 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1329 | |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1330 | case RAISE_VARARGS: |
| 1331 | u = v = w = NULL; |
| 1332 | switch (oparg) { |
| 1333 | case 3: |
| 1334 | u = POP(); /* traceback */ |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1335 | /* Fallthrough */ |
| 1336 | case 2: |
| 1337 | v = POP(); /* value */ |
| 1338 | /* Fallthrough */ |
| 1339 | case 1: |
| 1340 | w = POP(); /* exc */ |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 1341 | case 0: /* Fallthrough */ |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1342 | why = do_raise(w, v, u); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1343 | break; |
| 1344 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1345 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1346 | "bad RAISE_VARARGS oparg"); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1347 | why = WHY_EXCEPTION; |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1348 | break; |
| 1349 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1350 | break; |
| 1351 | |
| 1352 | case LOAD_LOCALS: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1353 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1354 | PyErr_SetString(PyExc_SystemError, |
| 1355 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1356 | break; |
| 1357 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1358 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1359 | PUSH(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1360 | break; |
| 1361 | |
| 1362 | case RETURN_VALUE: |
| 1363 | retval = POP(); |
| 1364 | why = WHY_RETURN; |
| 1365 | break; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1366 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1367 | case EXEC_STMT: |
| 1368 | w = POP(); |
| 1369 | v = POP(); |
| 1370 | u = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1371 | err = exec_statement(f, u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1372 | Py_DECREF(u); |
| 1373 | Py_DECREF(v); |
| 1374 | Py_DECREF(w); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1375 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1376 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1377 | case POP_BLOCK: |
| 1378 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1379 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1380 | while (STACK_LEVEL() > b->b_level) { |
| 1381 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1382 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1383 | } |
| 1384 | } |
| 1385 | break; |
| 1386 | |
| 1387 | case END_FINALLY: |
| 1388 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1389 | if (PyInt_Check(v)) { |
| 1390 | why = (enum why_code) PyInt_AsLong(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1391 | if (why == WHY_RETURN) |
| 1392 | retval = POP(); |
| 1393 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1394 | else if (PyString_Check(v) || PyClass_Check(v)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1395 | w = POP(); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1396 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1397 | PyErr_Restore(v, w, u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1398 | why = WHY_RERAISE; |
Guido van Rossum | 0db1ef9 | 1995-07-28 23:06:00 +0000 | [diff] [blame] | 1399 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1400 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1401 | else if (v != Py_None) { |
| 1402 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1403 | "'finally' pops bad exception"); |
| 1404 | why = WHY_EXCEPTION; |
| 1405 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1406 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1407 | break; |
| 1408 | |
| 1409 | case BUILD_CLASS: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1410 | u = POP(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1411 | v = POP(); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1412 | w = POP(); |
| 1413 | x = build_class(u, v, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1414 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1415 | Py_DECREF(u); |
| 1416 | Py_DECREF(v); |
| 1417 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1418 | break; |
| 1419 | |
| 1420 | case STORE_NAME: |
| 1421 | w = GETNAMEV(oparg); |
| 1422 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1423 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1424 | PyErr_SetString(PyExc_SystemError, |
| 1425 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1426 | break; |
| 1427 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1428 | err = PyDict_SetItem(x, w, v); |
| 1429 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1430 | break; |
| 1431 | |
| 1432 | case DELETE_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1433 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1434 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1435 | PyErr_SetString(PyExc_SystemError, |
| 1436 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1437 | break; |
| 1438 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1439 | if ((err = PyDict_DelItem(x, w)) != 0) |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1440 | format_exc_check_arg(PyExc_NameError, |
| 1441 | NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1442 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1443 | |
Thomas Wouters | 0be5aab | 2000-08-11 22:15:52 +0000 | [diff] [blame] | 1444 | case UNPACK_SEQUENCE: |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1445 | v = POP(); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1446 | if (PyTuple_Check(v)) { |
| 1447 | if (PyTuple_Size(v) != oparg) { |
| 1448 | PyErr_SetString(PyExc_ValueError, |
| 1449 | "unpack tuple of wrong size"); |
| 1450 | why = WHY_EXCEPTION; |
| 1451 | } |
| 1452 | else { |
| 1453 | for (; --oparg >= 0; ) { |
| 1454 | w = PyTuple_GET_ITEM(v, oparg); |
| 1455 | Py_INCREF(w); |
| 1456 | PUSH(w); |
| 1457 | } |
| 1458 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1459 | } |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1460 | else if (PyList_Check(v)) { |
| 1461 | if (PyList_Size(v) != oparg) { |
| 1462 | PyErr_SetString(PyExc_ValueError, |
| 1463 | "unpack list of wrong size"); |
| 1464 | why = WHY_EXCEPTION; |
| 1465 | } |
| 1466 | else { |
| 1467 | for (; --oparg >= 0; ) { |
| 1468 | w = PyList_GET_ITEM(v, oparg); |
| 1469 | Py_INCREF(w); |
| 1470 | PUSH(w); |
| 1471 | } |
| 1472 | } |
| 1473 | } |
| 1474 | else if (PySequence_Check(v)) { |
| 1475 | if (unpack_sequence(v, oparg, |
| 1476 | stack_pointer + oparg)) |
| 1477 | stack_pointer += oparg; |
| 1478 | else |
| 1479 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1480 | } |
| 1481 | else { |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1482 | PyErr_SetString(PyExc_TypeError, |
| 1483 | "unpack non-sequence"); |
| 1484 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1485 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1486 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1487 | break; |
| 1488 | |
| 1489 | case STORE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1490 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1491 | v = POP(); |
| 1492 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1493 | err = PyObject_SetAttr(v, w, u); /* v.w = u */ |
| 1494 | Py_DECREF(v); |
| 1495 | Py_DECREF(u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1496 | break; |
| 1497 | |
| 1498 | case DELETE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1499 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1500 | v = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1501 | err = PyObject_SetAttr(v, w, (PyObject *)NULL); |
| 1502 | /* del v.w */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1503 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1504 | break; |
| 1505 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1506 | case STORE_GLOBAL: |
| 1507 | w = GETNAMEV(oparg); |
| 1508 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1509 | err = PyDict_SetItem(f->f_globals, w, v); |
| 1510 | Py_DECREF(v); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1511 | break; |
| 1512 | |
| 1513 | case DELETE_GLOBAL: |
| 1514 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1515 | if ((err = PyDict_DelItem(f->f_globals, w)) != 0) |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1516 | format_exc_check_arg( |
| 1517 | PyExc_NameError, NAME_ERROR_MSG ,w); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1518 | break; |
| 1519 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1520 | case LOAD_CONST: |
| 1521 | x = GETCONST(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1522 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1523 | PUSH(x); |
| 1524 | break; |
| 1525 | |
| 1526 | case LOAD_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) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1529 | PyErr_SetString(PyExc_SystemError, |
| 1530 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1531 | break; |
| 1532 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1533 | x = PyDict_GetItem(x, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1534 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1535 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1536 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1537 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1538 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1539 | format_exc_check_arg( |
| 1540 | PyExc_NameError, |
| 1541 | NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1542 | break; |
| 1543 | } |
| 1544 | } |
| 1545 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1546 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1547 | PUSH(x); |
| 1548 | break; |
| 1549 | |
| 1550 | case LOAD_GLOBAL: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1551 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1552 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1553 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1554 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1555 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1556 | format_exc_check_arg( |
| 1557 | PyExc_NameError, |
| 1558 | NAME_ERROR_MSG ,w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1559 | break; |
| 1560 | } |
| 1561 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1562 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1563 | PUSH(x); |
| 1564 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1565 | |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1566 | case LOAD_FAST: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1567 | x = GETLOCAL(oparg); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1568 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1569 | format_exc_check_arg( |
| 1570 | PyExc_UnboundLocalError, |
| 1571 | UNBOUNDLOCAL_ERROR_MSG, |
| 1572 | PyTuple_GetItem(co->co_varnames, oparg) |
| 1573 | ); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1574 | break; |
| 1575 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1576 | Py_INCREF(x); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1577 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1578 | if (x != NULL) continue; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1579 | break; |
| 1580 | |
| 1581 | case STORE_FAST: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1582 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1583 | SETLOCAL(oparg, v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1584 | continue; |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1585 | |
| 1586 | case DELETE_FAST: |
Guido van Rossum | 2e4c899 | 1998-05-12 20:27:36 +0000 | [diff] [blame] | 1587 | x = GETLOCAL(oparg); |
| 1588 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1589 | format_exc_check_arg( |
| 1590 | PyExc_UnboundLocalError, |
| 1591 | UNBOUNDLOCAL_ERROR_MSG, |
| 1592 | PyTuple_GetItem(co->co_varnames, oparg) |
| 1593 | ); |
Guido van Rossum | 2e4c899 | 1998-05-12 20:27:36 +0000 | [diff] [blame] | 1594 | break; |
| 1595 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1596 | SETLOCAL(oparg, NULL); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1597 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1598 | |
| 1599 | case BUILD_TUPLE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1600 | x = PyTuple_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1601 | if (x != NULL) { |
| 1602 | for (; --oparg >= 0;) { |
| 1603 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1604 | PyTuple_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1605 | } |
| 1606 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1607 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1608 | } |
| 1609 | break; |
| 1610 | |
| 1611 | case BUILD_LIST: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1612 | x = PyList_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1613 | if (x != NULL) { |
| 1614 | for (; --oparg >= 0;) { |
| 1615 | w = POP(); |
Guido van Rossum | 5053efc | 1998-08-04 15:27:50 +0000 | [diff] [blame] | 1616 | PyList_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1617 | } |
| 1618 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1619 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1620 | } |
| 1621 | break; |
| 1622 | |
| 1623 | case BUILD_MAP: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1624 | x = PyDict_New(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1625 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1626 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1627 | break; |
| 1628 | |
| 1629 | case LOAD_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1630 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1631 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1632 | x = PyObject_GetAttr(v, w); |
| 1633 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1634 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1635 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1636 | break; |
| 1637 | |
| 1638 | case COMPARE_OP: |
| 1639 | w = POP(); |
| 1640 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1641 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1642 | /* INLINE: cmp(int, int) */ |
| 1643 | register long a, b; |
| 1644 | register int res; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 1645 | a = PyInt_AS_LONG(v); |
| 1646 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1647 | switch (oparg) { |
| 1648 | case LT: res = a < b; break; |
| 1649 | case LE: res = a <= b; break; |
| 1650 | case EQ: res = a == b; break; |
| 1651 | case NE: res = a != b; break; |
| 1652 | case GT: res = a > b; break; |
| 1653 | case GE: res = a >= b; break; |
| 1654 | case IS: res = v == w; break; |
| 1655 | case IS_NOT: res = v != w; break; |
| 1656 | default: goto slow_compare; |
| 1657 | } |
| 1658 | x = res ? Py_True : Py_False; |
| 1659 | Py_INCREF(x); |
| 1660 | } |
| 1661 | else { |
| 1662 | slow_compare: |
| 1663 | x = cmp_outcome(oparg, v, w); |
| 1664 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1665 | Py_DECREF(v); |
| 1666 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1667 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1668 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1669 | break; |
| 1670 | |
| 1671 | case IMPORT_NAME: |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1672 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1673 | x = PyDict_GetItemString(f->f_builtins, "__import__"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1674 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1675 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1676 | "__import__ not found"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1677 | break; |
| 1678 | } |
Thomas Wouters | dd13e4f | 2000-08-27 20:31:27 +0000 | [diff] [blame] | 1679 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1680 | w = Py_BuildValue("(OOOO)", |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1681 | w, |
| 1682 | f->f_globals, |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1683 | f->f_locals == NULL ? |
| 1684 | Py_None : f->f_locals, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1685 | u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1686 | Py_DECREF(u); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1687 | if (w == NULL) { |
| 1688 | x = NULL; |
| 1689 | break; |
| 1690 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1691 | x = PyEval_CallObject(x, w); |
| 1692 | Py_DECREF(w); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1693 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1694 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1695 | break; |
| 1696 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1697 | case IMPORT_STAR: |
| 1698 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1699 | PyFrame_FastToLocals(f); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1700 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1701 | PyErr_SetString(PyExc_SystemError, |
| 1702 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1703 | break; |
| 1704 | } |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1705 | err = import_all_from(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1706 | PyFrame_LocalsToFast(f, 0); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1707 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1708 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1709 | break; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1710 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1711 | case IMPORT_FROM: |
| 1712 | w = GETNAMEV(oparg); |
| 1713 | v = TOP(); |
| 1714 | x = import_from(v, w); |
| 1715 | PUSH(x); |
| 1716 | if (x != NULL) continue; |
| 1717 | break; |
| 1718 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1719 | case JUMP_FORWARD: |
| 1720 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1721 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1722 | |
| 1723 | case JUMP_IF_FALSE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1724 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1725 | if (err > 0) |
| 1726 | err = 0; |
| 1727 | else if (err == 0) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1728 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1729 | else |
| 1730 | break; |
| 1731 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1732 | |
| 1733 | case JUMP_IF_TRUE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1734 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1735 | if (err > 0) { |
| 1736 | err = 0; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1737 | JUMPBY(oparg); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1738 | } |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1739 | else if (err == 0) |
| 1740 | ; |
| 1741 | else |
| 1742 | break; |
| 1743 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1744 | |
| 1745 | case JUMP_ABSOLUTE: |
| 1746 | JUMPTO(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1747 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1748 | |
| 1749 | case FOR_LOOP: |
| 1750 | /* for v in s: ... |
| 1751 | On entry: stack contains s, i. |
| 1752 | On exit: stack contains s, i+1, s[i]; |
| 1753 | but if loop exhausted: |
| 1754 | s, i are popped, and we jump */ |
| 1755 | w = POP(); /* Loop index */ |
| 1756 | v = POP(); /* Sequence object */ |
| 1757 | u = loop_subscript(v, w); |
| 1758 | if (u != NULL) { |
| 1759 | PUSH(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1760 | x = PyInt_FromLong(PyInt_AsLong(w)+1); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1761 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1762 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1763 | PUSH(u); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1764 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1765 | } |
| 1766 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1767 | Py_DECREF(v); |
| 1768 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1769 | /* A NULL can mean "s exhausted" |
| 1770 | but also an error: */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1771 | if (PyErr_Occurred()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1772 | why = WHY_EXCEPTION; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1773 | else { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1774 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1775 | continue; |
| 1776 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1777 | } |
| 1778 | break; |
| 1779 | |
| 1780 | case SETUP_LOOP: |
| 1781 | case SETUP_EXCEPT: |
| 1782 | case SETUP_FINALLY: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1783 | PyFrame_BlockSetup(f, opcode, INSTR_OFFSET() + oparg, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1784 | STACK_LEVEL()); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1785 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1786 | |
| 1787 | case SET_LINENO: |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1788 | #ifdef LLTRACE |
| 1789 | if (lltrace) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1790 | printf("--- %s:%d \n", filename, oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1791 | #endif |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1792 | f->f_lineno = oparg; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1793 | if (f->f_trace == NULL) |
| 1794 | continue; |
| 1795 | /* Trace each line of code reached */ |
| 1796 | f->f_lasti = INSTR_OFFSET(); |
| 1797 | err = call_trace(&f->f_trace, &f->f_trace, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1798 | f, "line", Py_None); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1799 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1800 | |
| 1801 | case CALL_FUNCTION: |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1802 | { |
| 1803 | int na = oparg & 0xff; |
| 1804 | int nk = (oparg>>8) & 0xff; |
| 1805 | int n = na + 2 * nk; |
| 1806 | PyObject **pfunc = stack_pointer - n - 1; |
| 1807 | PyObject *func = *pfunc; |
| 1808 | f->f_lasti = INSTR_OFFSET() - 3; /* For tracing */ |
| 1809 | |
| 1810 | /* Always dispatch PyCFunction first, because |
| 1811 | these are presumed to be the most frequent |
| 1812 | callable object. |
| 1813 | */ |
| 1814 | if (PyCFunction_Check(func)) { |
| 1815 | if (PyCFunction_GET_FLAGS(func) == 0) { |
| 1816 | x = fast_cfunction(func, |
| 1817 | &stack_pointer, na); |
| 1818 | } else { |
| 1819 | x = do_call(func, &stack_pointer, |
| 1820 | na, nk); |
| 1821 | } |
| 1822 | } else { |
| 1823 | if (PyMethod_Check(func) |
| 1824 | && PyMethod_GET_SELF(func) != NULL) { |
| 1825 | /* optimize access to bound methods */ |
| 1826 | PyObject *self = PyMethod_GET_SELF(func); |
| 1827 | Py_INCREF(self); |
| 1828 | func = PyMethod_GET_FUNCTION(func); |
| 1829 | Py_INCREF(func); |
| 1830 | Py_DECREF(*pfunc); |
| 1831 | *pfunc = self; |
| 1832 | na++; |
| 1833 | n++; |
| 1834 | } else |
| 1835 | Py_INCREF(func); |
| 1836 | if (PyFunction_Check(func)) { |
| 1837 | x = fast_function(func, &stack_pointer, |
| 1838 | n, na, nk); |
| 1839 | } else { |
| 1840 | x = do_call(func, &stack_pointer, |
| 1841 | na, nk); |
| 1842 | } |
| 1843 | Py_DECREF(func); |
| 1844 | } |
| 1845 | |
| 1846 | while (stack_pointer > pfunc) { |
| 1847 | w = POP(); |
| 1848 | Py_DECREF(w); |
| 1849 | } |
| 1850 | PUSH(x); |
| 1851 | if (x != NULL) |
| 1852 | continue; |
| 1853 | break; |
| 1854 | } |
| 1855 | |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1856 | case CALL_FUNCTION_VAR: |
| 1857 | case CALL_FUNCTION_KW: |
| 1858 | case CALL_FUNCTION_VAR_KW: |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1859 | { |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1860 | int na = oparg & 0xff; |
| 1861 | int nk = (oparg>>8) & 0xff; |
| 1862 | int flags = (opcode - CALL_FUNCTION) & 3; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1863 | int n = na + 2 * nk; |
| 1864 | PyObject **pfunc, *func; |
| 1865 | if (flags & CALL_FLAG_VAR) |
| 1866 | n++; |
| 1867 | if (flags & CALL_FLAG_KW) |
| 1868 | n++; |
| 1869 | pfunc = stack_pointer - n - 1; |
| 1870 | func = *pfunc; |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1871 | f->f_lasti = INSTR_OFFSET() - 3; /* For tracing */ |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1872 | |
| 1873 | if (PyMethod_Check(func) |
| 1874 | && PyMethod_GET_SELF(func) != NULL) { |
| 1875 | PyObject *self = PyMethod_GET_SELF(func); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1876 | Py_INCREF(self); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1877 | func = PyMethod_GET_FUNCTION(func); |
| 1878 | Py_INCREF(func); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1879 | Py_DECREF(*pfunc); |
| 1880 | *pfunc = self; |
| 1881 | na++; |
| 1882 | n++; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1883 | } else |
| 1884 | Py_INCREF(func); |
| 1885 | x = ext_do_call(func, &stack_pointer, flags, na, nk); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1886 | Py_DECREF(func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1887 | |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1888 | while (stack_pointer > pfunc) { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1889 | w = POP(); |
| 1890 | Py_DECREF(w); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1891 | } |
| 1892 | PUSH(x); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 1893 | if (x != NULL) |
| 1894 | continue; |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 1895 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1896 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1897 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1898 | case MAKE_FUNCTION: |
| 1899 | v = POP(); /* code object */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1900 | x = PyFunction_New(v, f->f_globals); |
| 1901 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1902 | /* XXX Maybe this should be a separate opcode? */ |
| 1903 | if (x != NULL && oparg > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1904 | v = PyTuple_New(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1905 | if (v == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1906 | Py_DECREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1907 | x = NULL; |
| 1908 | break; |
| 1909 | } |
| 1910 | while (--oparg >= 0) { |
| 1911 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1912 | PyTuple_SET_ITEM(v, oparg, w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1913 | } |
| 1914 | err = PyFunction_SetDefaults(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1915 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1916 | } |
| 1917 | PUSH(x); |
| 1918 | break; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1919 | |
| 1920 | case BUILD_SLICE: |
| 1921 | if (oparg == 3) |
| 1922 | w = POP(); |
| 1923 | else |
| 1924 | w = NULL; |
| 1925 | v = POP(); |
| 1926 | u = POP(); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 1927 | x = PySlice_New(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1928 | Py_DECREF(u); |
| 1929 | Py_DECREF(v); |
| 1930 | Py_XDECREF(w); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1931 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1932 | if (x != NULL) continue; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1933 | break; |
| 1934 | |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 1935 | case EXTENDED_ARG: |
| 1936 | opcode = NEXTOP(); |
| 1937 | oparg = oparg<<16 | NEXTARG(); |
| 1938 | goto dispatch_opcode; |
| 1939 | break; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1940 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1941 | default: |
| 1942 | fprintf(stderr, |
| 1943 | "XXX lineno: %d, opcode: %d\n", |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1944 | f->f_lineno, opcode); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1945 | PyErr_SetString(PyExc_SystemError, "unknown opcode"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1946 | why = WHY_EXCEPTION; |
| 1947 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1948 | |
| 1949 | #ifdef CASE_TOO_BIG |
| 1950 | } |
| 1951 | #endif |
| 1952 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1953 | } /* switch */ |
| 1954 | |
| 1955 | on_error: |
| 1956 | |
| 1957 | /* Quickly continue if no error occurred */ |
| 1958 | |
| 1959 | if (why == WHY_NOT) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1960 | if (err == 0 && x != NULL) { |
| 1961 | #ifdef CHECKEXC |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 1962 | /* This check is expensive! */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1963 | if (PyErr_Occurred()) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1964 | fprintf(stderr, |
| 1965 | "XXX undetected error\n"); |
| 1966 | else |
| 1967 | #endif |
| 1968 | continue; /* Normal, fast path */ |
| 1969 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1970 | why = WHY_EXCEPTION; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1971 | x = Py_None; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1972 | err = 0; |
| 1973 | } |
| 1974 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1975 | /* Double-check exception status */ |
| 1976 | |
| 1977 | if (why == WHY_EXCEPTION || why == WHY_RERAISE) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1978 | if (!PyErr_Occurred()) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1979 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 1980 | "error return without exception set"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1981 | why = WHY_EXCEPTION; |
| 1982 | } |
| 1983 | } |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 1984 | #ifdef CHECKEXC |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1985 | else { |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 1986 | /* This check is expensive! */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1987 | if (PyErr_Occurred()) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1988 | fprintf(stderr, |
| 1989 | "XXX undetected error (why=%d)\n", |
| 1990 | why); |
| 1991 | why = WHY_EXCEPTION; |
| 1992 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1993 | } |
| 1994 | #endif |
| 1995 | |
| 1996 | /* Log traceback info if this is a real exception */ |
| 1997 | |
| 1998 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1999 | f->f_lasti = INSTR_OFFSET() - 1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2000 | if (HAS_ARG(opcode)) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2001 | f->f_lasti -= 2; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2002 | PyTraceBack_Here(f); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2003 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2004 | if (f->f_trace) |
| 2005 | call_exc_trace(&f->f_trace, &f->f_trace, f); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2006 | if (tstate->sys_profilefunc) |
| 2007 | call_exc_trace(&tstate->sys_profilefunc, |
| 2008 | (PyObject**)0, f); |
Guido van Rossum | 014518f | 1998-11-23 21:09:51 +0000 | [diff] [blame] | 2009 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2010 | |
| 2011 | /* For the rest, treat WHY_RERAISE as WHY_EXCEPTION */ |
| 2012 | |
| 2013 | if (why == WHY_RERAISE) |
| 2014 | why = WHY_EXCEPTION; |
| 2015 | |
| 2016 | /* Unwind stacks if a (pseudo) exception occurred */ |
| 2017 | |
| 2018 | while (why != WHY_NOT && f->f_iblock > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2019 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2020 | while (STACK_LEVEL() > b->b_level) { |
| 2021 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2022 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2023 | } |
| 2024 | if (b->b_type == SETUP_LOOP && why == WHY_BREAK) { |
| 2025 | why = WHY_NOT; |
| 2026 | JUMPTO(b->b_handler); |
| 2027 | break; |
| 2028 | } |
| 2029 | if (b->b_type == SETUP_FINALLY || |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2030 | (b->b_type == SETUP_EXCEPT && |
| 2031 | why == WHY_EXCEPTION)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2032 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2033 | PyObject *exc, *val, *tb; |
| 2034 | PyErr_Fetch(&exc, &val, &tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2035 | if (val == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2036 | val = Py_None; |
| 2037 | Py_INCREF(val); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2038 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2039 | /* Make the raw exception data |
| 2040 | available to the handler, |
| 2041 | so a program can emulate the |
| 2042 | Python main loop. Don't do |
| 2043 | this for 'finally'. */ |
| 2044 | if (b->b_type == SETUP_EXCEPT) { |
Barry Warsaw | eaedc7c | 1997-08-28 22:36:40 +0000 | [diff] [blame] | 2045 | PyErr_NormalizeException( |
| 2046 | &exc, &val, &tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2047 | set_exc_info(tstate, |
| 2048 | exc, val, tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2049 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2050 | PUSH(tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2051 | PUSH(val); |
| 2052 | PUSH(exc); |
| 2053 | } |
| 2054 | else { |
| 2055 | if (why == WHY_RETURN) |
| 2056 | PUSH(retval); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2057 | v = PyInt_FromLong((long)why); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2058 | PUSH(v); |
| 2059 | } |
| 2060 | why = WHY_NOT; |
| 2061 | JUMPTO(b->b_handler); |
| 2062 | break; |
| 2063 | } |
| 2064 | } /* unwind stack */ |
| 2065 | |
| 2066 | /* End the loop if we still have an error (or return) */ |
| 2067 | |
| 2068 | if (why != WHY_NOT) |
| 2069 | break; |
| 2070 | |
| 2071 | } /* main loop */ |
| 2072 | |
| 2073 | /* Pop remaining stack entries */ |
| 2074 | |
| 2075 | while (!EMPTY()) { |
| 2076 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2077 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2078 | } |
| 2079 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2080 | if (why != WHY_RETURN) |
| 2081 | retval = NULL; |
| 2082 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2083 | if (f->f_trace) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2084 | if (why == WHY_RETURN) { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2085 | if (call_trace(&f->f_trace, &f->f_trace, f, |
| 2086 | "return", retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2087 | Py_XDECREF(retval); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2088 | retval = NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2089 | why = WHY_EXCEPTION; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2090 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2091 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2092 | } |
| 2093 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2094 | if (tstate->sys_profilefunc && why == WHY_RETURN) { |
| 2095 | if (call_trace(&tstate->sys_profilefunc, (PyObject**)0, |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2096 | f, "return", retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2097 | Py_XDECREF(retval); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2098 | retval = NULL; |
| 2099 | why = WHY_EXCEPTION; |
| 2100 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2101 | } |
Guido van Rossum | a424013 | 1997-01-21 21:18:36 +0000 | [diff] [blame] | 2102 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2103 | reset_exc_info(tstate); |
| 2104 | |
| 2105 | --tstate->recursion_depth; |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 2106 | |
| 2107 | fail: /* Jump here from prelude on failure */ |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2108 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2109 | /* Restore previous frame and release the current one */ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2110 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2111 | tstate->frame = f->f_back; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2112 | Py_DECREF(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2113 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2114 | return retval; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2115 | } |
| 2116 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2117 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2118 | set_exc_info(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2119 | { |
| 2120 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2121 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2122 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2123 | frame = tstate->frame; |
| 2124 | if (frame->f_exc_type == NULL) { |
| 2125 | /* This frame didn't catch an exception before */ |
| 2126 | /* Save previous exception of this thread in this frame */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2127 | if (tstate->exc_type == NULL) { |
| 2128 | Py_INCREF(Py_None); |
| 2129 | tstate->exc_type = Py_None; |
| 2130 | } |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2131 | tmp_type = frame->f_exc_type; |
| 2132 | tmp_value = frame->f_exc_value; |
| 2133 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2134 | Py_XINCREF(tstate->exc_type); |
| 2135 | Py_XINCREF(tstate->exc_value); |
| 2136 | Py_XINCREF(tstate->exc_traceback); |
| 2137 | frame->f_exc_type = tstate->exc_type; |
| 2138 | frame->f_exc_value = tstate->exc_value; |
| 2139 | frame->f_exc_traceback = tstate->exc_traceback; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2140 | Py_XDECREF(tmp_type); |
| 2141 | Py_XDECREF(tmp_value); |
| 2142 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2143 | } |
| 2144 | /* Set new exception for this thread */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2145 | tmp_type = tstate->exc_type; |
| 2146 | tmp_value = tstate->exc_value; |
| 2147 | tmp_tb = tstate->exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2148 | Py_XINCREF(type); |
| 2149 | Py_XINCREF(value); |
| 2150 | Py_XINCREF(tb); |
| 2151 | tstate->exc_type = type; |
| 2152 | tstate->exc_value = value; |
| 2153 | tstate->exc_traceback = tb; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2154 | Py_XDECREF(tmp_type); |
| 2155 | Py_XDECREF(tmp_value); |
| 2156 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2157 | /* For b/w compatibility */ |
| 2158 | PySys_SetObject("exc_type", type); |
| 2159 | PySys_SetObject("exc_value", value); |
| 2160 | PySys_SetObject("exc_traceback", tb); |
| 2161 | } |
| 2162 | |
| 2163 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2164 | reset_exc_info(PyThreadState *tstate) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2165 | { |
| 2166 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2167 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2168 | frame = tstate->frame; |
| 2169 | if (frame->f_exc_type != NULL) { |
| 2170 | /* This frame caught an exception */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2171 | tmp_type = tstate->exc_type; |
| 2172 | tmp_value = tstate->exc_value; |
| 2173 | tmp_tb = tstate->exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2174 | Py_XINCREF(frame->f_exc_type); |
| 2175 | Py_XINCREF(frame->f_exc_value); |
| 2176 | Py_XINCREF(frame->f_exc_traceback); |
| 2177 | tstate->exc_type = frame->f_exc_type; |
| 2178 | tstate->exc_value = frame->f_exc_value; |
| 2179 | tstate->exc_traceback = frame->f_exc_traceback; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2180 | Py_XDECREF(tmp_type); |
| 2181 | Py_XDECREF(tmp_value); |
| 2182 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2183 | /* For b/w compatibility */ |
| 2184 | PySys_SetObject("exc_type", frame->f_exc_type); |
| 2185 | PySys_SetObject("exc_value", frame->f_exc_value); |
| 2186 | PySys_SetObject("exc_traceback", frame->f_exc_traceback); |
| 2187 | } |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2188 | tmp_type = frame->f_exc_type; |
| 2189 | tmp_value = frame->f_exc_value; |
| 2190 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2191 | frame->f_exc_type = NULL; |
| 2192 | frame->f_exc_value = NULL; |
| 2193 | frame->f_exc_traceback = NULL; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2194 | Py_XDECREF(tmp_type); |
| 2195 | Py_XDECREF(tmp_value); |
| 2196 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2197 | } |
| 2198 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2199 | /* Logic for the raise statement (too complicated for inlining). |
| 2200 | This *consumes* a reference count to each of its arguments. */ |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 2201 | static enum why_code |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2202 | do_raise(PyObject *type, PyObject *value, PyObject *tb) |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2203 | { |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 2204 | if (type == NULL) { |
| 2205 | /* Reraise */ |
| 2206 | PyThreadState *tstate = PyThreadState_Get(); |
| 2207 | type = tstate->exc_type == NULL ? Py_None : tstate->exc_type; |
| 2208 | value = tstate->exc_value; |
| 2209 | tb = tstate->exc_traceback; |
| 2210 | Py_XINCREF(type); |
| 2211 | Py_XINCREF(value); |
| 2212 | Py_XINCREF(tb); |
| 2213 | } |
| 2214 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2215 | /* We support the following forms of raise: |
| 2216 | raise <class>, <classinstance> |
| 2217 | raise <class>, <argument tuple> |
| 2218 | raise <class>, None |
| 2219 | raise <class>, <argument> |
| 2220 | raise <classinstance>, None |
| 2221 | raise <string>, <object> |
| 2222 | raise <string>, None |
| 2223 | |
| 2224 | An omitted second argument is the same as None. |
| 2225 | |
| 2226 | In addition, raise <tuple>, <anything> is the same as |
| 2227 | raising the tuple's first item (and it better have one!); |
| 2228 | this rule is applied recursively. |
| 2229 | |
| 2230 | Finally, an optional third argument can be supplied, which |
| 2231 | gives the traceback to be substituted (useful when |
| 2232 | re-raising an exception after examining it). */ |
| 2233 | |
| 2234 | /* First, check the traceback argument, replacing None with |
| 2235 | NULL. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2236 | if (tb == Py_None) { |
| 2237 | Py_DECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2238 | tb = NULL; |
| 2239 | } |
| 2240 | else if (tb != NULL && !PyTraceBack_Check(tb)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2241 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 2242 | "raise: arg 3 must be a traceback or None"); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2243 | goto raise_error; |
| 2244 | } |
| 2245 | |
| 2246 | /* Next, replace a missing value with None */ |
| 2247 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2248 | value = Py_None; |
| 2249 | Py_INCREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2250 | } |
| 2251 | |
| 2252 | /* Next, repeatedly, replace a tuple exception with its first item */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2253 | while (PyTuple_Check(type) && PyTuple_Size(type) > 0) { |
| 2254 | PyObject *tmp = type; |
| 2255 | type = PyTuple_GET_ITEM(type, 0); |
| 2256 | Py_INCREF(type); |
| 2257 | Py_DECREF(tmp); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2258 | } |
| 2259 | |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2260 | if (PyString_Check(type)) |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2261 | ; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2262 | |
| 2263 | else if (PyClass_Check(type)) |
| 2264 | PyErr_NormalizeException(&type, &value, &tb); |
| 2265 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2266 | else if (PyInstance_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2267 | /* Raising an instance. The value should be a dummy. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2268 | if (value != Py_None) { |
| 2269 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2270 | "instance exception may not have a separate value"); |
| 2271 | goto raise_error; |
| 2272 | } |
| 2273 | else { |
| 2274 | /* Normalize to raise <class>, <instance> */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2275 | Py_DECREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2276 | value = type; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2277 | type = (PyObject*) ((PyInstanceObject*)type)->in_class; |
| 2278 | Py_INCREF(type); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2279 | } |
| 2280 | } |
| 2281 | else { |
| 2282 | /* Not something you can raise. You get an exception |
| 2283 | anyway, just not what you specified :-) */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2284 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2285 | "exceptions must be strings, classes, or instances"); |
| 2286 | goto raise_error; |
| 2287 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2288 | PyErr_Restore(type, value, tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2289 | if (tb == NULL) |
| 2290 | return WHY_EXCEPTION; |
| 2291 | else |
| 2292 | return WHY_RERAISE; |
| 2293 | raise_error: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2294 | Py_XDECREF(value); |
| 2295 | Py_XDECREF(type); |
| 2296 | Py_XDECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2297 | return WHY_EXCEPTION; |
| 2298 | } |
| 2299 | |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2300 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2301 | unpack_sequence(PyObject *v, int argcnt, PyObject **sp) |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2302 | { |
| 2303 | int i; |
| 2304 | PyObject *w; |
| 2305 | |
| 2306 | for (i = 0; i < argcnt; i++) { |
| 2307 | if (! (w = PySequence_GetItem(v, i))) { |
| 2308 | if (PyErr_ExceptionMatches(PyExc_IndexError)) |
| 2309 | PyErr_SetString(PyExc_ValueError, |
| 2310 | "unpack sequence of wrong size"); |
| 2311 | goto finally; |
| 2312 | } |
| 2313 | *--sp = w; |
| 2314 | } |
| 2315 | /* we better get an IndexError now */ |
| 2316 | if (PySequence_GetItem(v, i) == NULL) { |
| 2317 | if (PyErr_ExceptionMatches(PyExc_IndexError)) { |
| 2318 | PyErr_Clear(); |
| 2319 | return 1; |
| 2320 | } |
| 2321 | /* some other exception occurred. fall through to finally */ |
| 2322 | } |
| 2323 | else |
| 2324 | PyErr_SetString(PyExc_ValueError, |
| 2325 | "unpack sequence of wrong size"); |
| 2326 | /* fall through */ |
| 2327 | finally: |
Barry Warsaw | 9101055 | 1997-08-25 22:30:51 +0000 | [diff] [blame] | 2328 | for (; i > 0; i--, sp++) |
| 2329 | Py_DECREF(*sp); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 2330 | |
| 2331 | return 0; |
| 2332 | } |
| 2333 | |
| 2334 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2335 | #ifdef LLTRACE |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2336 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2337 | prtrace(PyObject *v, char *str) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2338 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2339 | printf("%s ", str); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2340 | if (PyObject_Print(v, stdout, 0) != 0) |
| 2341 | PyErr_Clear(); /* Don't know what else to do */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2342 | printf("\n"); |
Guido van Rossum | cc229ea | 2000-05-04 00:55:17 +0000 | [diff] [blame] | 2343 | return 1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2344 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2345 | #endif |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2346 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2347 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2348 | call_exc_trace(PyObject **p_trace, PyObject **p_newtrace, PyFrameObject *f) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2349 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2350 | PyObject *type, *value, *traceback, *arg; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2351 | int err; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2352 | PyErr_Fetch(&type, &value, &traceback); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 2353 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2354 | value = Py_None; |
| 2355 | Py_INCREF(value); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 2356 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2357 | arg = Py_BuildValue("(OOO)", type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2358 | if (arg == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2359 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2360 | return; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2361 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2362 | err = call_trace(p_trace, p_newtrace, f, "exception", arg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2363 | Py_DECREF(arg); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2364 | if (err == 0) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2365 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2366 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2367 | Py_XDECREF(type); |
| 2368 | Py_XDECREF(value); |
| 2369 | Py_XDECREF(traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2370 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2371 | } |
| 2372 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2373 | /* PyObject **p_trace: in/out; may not be NULL; |
| 2374 | may not point to NULL variable initially |
| 2375 | PyObject **p_newtrace: in/out; may be NULL; |
| 2376 | may point to NULL variable; |
| 2377 | may be same variable as p_newtrace */ |
| 2378 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2379 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2380 | call_trace(PyObject **p_trace, PyObject **p_newtrace, PyFrameObject *f, |
| 2381 | char *msg, PyObject *arg) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2382 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2383 | PyThreadState *tstate = f->f_tstate; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2384 | PyObject *args, *what; |
| 2385 | PyObject *res = NULL; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2386 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2387 | if (tstate->tracing) { |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2388 | /* Don't do recursive traces */ |
| 2389 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2390 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2391 | *p_newtrace = NULL; |
| 2392 | } |
| 2393 | return 0; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2394 | } |
| 2395 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2396 | args = PyTuple_New(3); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2397 | if (args == NULL) |
Guido van Rossum | f9c90c5 | 1997-08-05 02:18:01 +0000 | [diff] [blame] | 2398 | goto cleanup; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2399 | what = PyString_FromString(msg); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2400 | if (what == NULL) |
Guido van Rossum | f9c90c5 | 1997-08-05 02:18:01 +0000 | [diff] [blame] | 2401 | goto cleanup; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2402 | Py_INCREF(f); |
| 2403 | PyTuple_SET_ITEM(args, 0, (PyObject *)f); |
| 2404 | PyTuple_SET_ITEM(args, 1, what); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2405 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2406 | arg = Py_None; |
| 2407 | Py_INCREF(arg); |
| 2408 | PyTuple_SET_ITEM(args, 2, arg); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2409 | tstate->tracing++; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2410 | PyFrame_FastToLocals(f); |
| 2411 | res = PyEval_CallObject(*p_trace, args); /* May clear *p_trace! */ |
| 2412 | PyFrame_LocalsToFast(f, 1); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2413 | tstate->tracing--; |
Guido van Rossum | f9c90c5 | 1997-08-05 02:18:01 +0000 | [diff] [blame] | 2414 | cleanup: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2415 | Py_XDECREF(args); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2416 | if (res == NULL) { |
| 2417 | /* The trace proc raised an exception */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2418 | PyTraceBack_Here(f); |
| 2419 | Py_XDECREF(*p_trace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2420 | *p_trace = NULL; |
| 2421 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2422 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2423 | *p_newtrace = NULL; |
| 2424 | } |
Barry Warsaw | f620263 | 1999-09-08 16:26:33 +0000 | [diff] [blame] | 2425 | /* to be extra double plus sure we don't get recursive |
| 2426 | * calls inf either tracefunc or profilefunc gets an |
| 2427 | * exception, zap the global variables. |
| 2428 | */ |
| 2429 | Py_XDECREF(tstate->sys_tracefunc); |
| 2430 | tstate->sys_tracefunc = NULL; |
| 2431 | Py_XDECREF(tstate->sys_profilefunc); |
| 2432 | tstate->sys_profilefunc = NULL; |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2433 | return -1; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2434 | } |
| 2435 | else { |
| 2436 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2437 | Py_XDECREF(*p_newtrace); |
| 2438 | if (res == Py_None) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2439 | *p_newtrace = NULL; |
| 2440 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2441 | Py_INCREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2442 | *p_newtrace = res; |
| 2443 | } |
| 2444 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2445 | Py_DECREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2446 | return 0; |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2447 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2448 | } |
| 2449 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2450 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2451 | PyEval_GetBuiltins(void) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2452 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 2453 | PyThreadState *tstate = PyThreadState_Get(); |
| 2454 | PyFrameObject *current_frame = tstate->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2455 | if (current_frame == NULL) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 2456 | return tstate->interp->builtins; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2457 | else |
| 2458 | return current_frame->f_builtins; |
| 2459 | } |
| 2460 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2461 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2462 | PyEval_GetLocals(void) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2463 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2464 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2465 | if (current_frame == NULL) |
| 2466 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2467 | PyFrame_FastToLocals(current_frame); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2468 | return current_frame->f_locals; |
| 2469 | } |
| 2470 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2471 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2472 | PyEval_GetGlobals(void) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2473 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2474 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2475 | if (current_frame == NULL) |
| 2476 | return NULL; |
| 2477 | else |
| 2478 | return current_frame->f_globals; |
| 2479 | } |
| 2480 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2481 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2482 | PyEval_GetFrame(void) |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2483 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2484 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2485 | return (PyObject *)current_frame; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2486 | } |
| 2487 | |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2488 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2489 | PyEval_GetRestricted(void) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2490 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2491 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2492 | return current_frame == NULL ? 0 : current_frame->f_restricted; |
| 2493 | } |
| 2494 | |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 2495 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2496 | Py_FlushLine(void) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2497 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2498 | PyObject *f = PySys_GetObject("stdout"); |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 2499 | if (f == NULL) |
| 2500 | return 0; |
| 2501 | if (!PyFile_SoftSpace(f, 0)) |
| 2502 | return 0; |
| 2503 | return PyFile_WriteString("\n", f); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2504 | } |
| 2505 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2506 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2507 | /* External interface to call any callable object. |
| 2508 | The arg must be a tuple or NULL. */ |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2509 | |
Guido van Rossum | d7ed683 | 1997-08-30 15:02:50 +0000 | [diff] [blame] | 2510 | #undef PyEval_CallObject |
| 2511 | /* for backward compatibility: export this interface */ |
| 2512 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2513 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2514 | PyEval_CallObject(PyObject *func, PyObject *arg) |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2515 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2516 | return PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2517 | } |
Guido van Rossum | d7ed683 | 1997-08-30 15:02:50 +0000 | [diff] [blame] | 2518 | #define PyEval_CallObject(func,arg) \ |
| 2519 | PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL) |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2520 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2521 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2522 | PyEval_CallObjectWithKeywords(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2523 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2524 | PyObject *result; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2525 | |
| 2526 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2527 | arg = PyTuple_New(0); |
| 2528 | else if (!PyTuple_Check(arg)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2529 | PyErr_SetString(PyExc_TypeError, |
| 2530 | "argument list must be a tuple"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2531 | return NULL; |
| 2532 | } |
| 2533 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2534 | Py_INCREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2535 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2536 | if (kw != NULL && !PyDict_Check(kw)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2537 | PyErr_SetString(PyExc_TypeError, |
| 2538 | "keyword list must be a dictionary"); |
Guido van Rossum | 25826c9 | 2000-04-21 21:17:39 +0000 | [diff] [blame] | 2539 | Py_DECREF(arg); |
Guido van Rossum | e3e61c1 | 1995-08-04 04:14:47 +0000 | [diff] [blame] | 2540 | return NULL; |
| 2541 | } |
| 2542 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2543 | result = call_object(func, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2544 | Py_DECREF(arg); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2545 | return result; |
| 2546 | } |
| 2547 | |
| 2548 | /* How often is each kind of object called? The answer depends on the |
| 2549 | program. An instrumented call_object() was used to run the Python |
| 2550 | regression test suite. The results were: |
| 2551 | 4200000 PyCFunctions |
| 2552 | 390000 fast_function() calls |
| 2553 | 94000 other functions |
| 2554 | 480000 all functions (sum of prev two) |
| 2555 | 150000 methods |
| 2556 | 100000 classes |
| 2557 | |
| 2558 | Tests on other bodies of code show that PyCFunctions are still |
| 2559 | most common, but not by such a large margin. |
| 2560 | */ |
| 2561 | |
| 2562 | static PyObject * |
| 2563 | call_object(PyObject *func, PyObject *arg, PyObject *kw) |
| 2564 | { |
| 2565 | ternaryfunc call; |
| 2566 | PyObject *result; |
| 2567 | |
| 2568 | if (PyMethod_Check(func)) |
| 2569 | result = call_method(func, arg, kw); |
| 2570 | else if (PyFunction_Check(func)) |
| 2571 | result = call_eval_code2(func, arg, kw); |
| 2572 | else if (PyCFunction_Check(func)) |
| 2573 | result = call_cfunction(func, arg, kw); |
| 2574 | else if (PyClass_Check(func)) |
| 2575 | result = PyInstance_New(func, arg, kw); |
| 2576 | else if (PyInstance_Check(func)) |
| 2577 | result = call_instance(func, arg, kw); |
| 2578 | else if ((call = func->ob_type->tp_call) != NULL) |
| 2579 | result = (*call)(func, arg, kw); |
| 2580 | else { |
| 2581 | PyErr_Format(PyExc_TypeError, "object is not callable: %s", |
| 2582 | PyString_AS_STRING(PyObject_Repr(func))); |
| 2583 | return NULL; |
| 2584 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2585 | if (result == NULL && !PyErr_Occurred()) |
| 2586 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2587 | "NULL result without error in call_object"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2588 | |
| 2589 | return result; |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2590 | } |
| 2591 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2592 | static PyObject * |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2593 | call_cfunction(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2594 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2595 | PyCFunctionObject* f = (PyCFunctionObject*)func; |
| 2596 | PyCFunction meth = PyCFunction_GET_FUNCTION(func); |
| 2597 | PyObject *self = PyCFunction_GET_SELF(func); |
| 2598 | int flags = PyCFunction_GET_FLAGS(func); |
| 2599 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2600 | if (flags & METH_KEYWORDS) { |
Fred Drake | 1a7aab7 | 2001-01-04 22:33:02 +0000 | [diff] [blame] | 2601 | if (kw == NULL) { |
| 2602 | static PyObject *dict = NULL; |
| 2603 | if (dict == NULL) { |
| 2604 | dict = PyDict_New(); |
| 2605 | if (dict == NULL) |
| 2606 | return NULL; |
| 2607 | } |
| 2608 | kw = dict; |
| 2609 | Py_INCREF(dict); |
| 2610 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2611 | return (*(PyCFunctionWithKeywords)meth)(self, arg, kw); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2612 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2613 | if (kw != NULL && PyDict_Size(kw) != 0) { |
| 2614 | PyErr_Format(PyExc_TypeError, |
| 2615 | "%.200s() takes no keyword arguments", |
| 2616 | f->m_ml->ml_name); |
| 2617 | return NULL; |
| 2618 | } |
Fred Drake | 1a7aab7 | 2001-01-04 22:33:02 +0000 | [diff] [blame] | 2619 | if (flags & METH_VARARGS) { |
| 2620 | return (*meth)(self, arg); |
| 2621 | } |
| 2622 | if (!(flags & METH_VARARGS)) { |
| 2623 | /* the really old style */ |
| 2624 | int size = PyTuple_GET_SIZE(arg); |
| 2625 | if (size == 1) |
| 2626 | arg = PyTuple_GET_ITEM(arg, 0); |
| 2627 | else if (size == 0) |
| 2628 | arg = NULL; |
| 2629 | return (*meth)(self, arg); |
| 2630 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2631 | /* should never get here ??? */ |
| 2632 | PyErr_BadInternalCall(); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2633 | return NULL; |
| 2634 | } |
| 2635 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2636 | static PyObject * |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2637 | call_instance(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2638 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2639 | PyObject *res, *call = PyObject_GetAttrString(func, "__call__"); |
| 2640 | if (call == NULL) { |
| 2641 | PyInstanceObject *inst = (PyInstanceObject*) func; |
| 2642 | PyErr_Clear(); |
| 2643 | PyErr_Format(PyExc_AttributeError, |
| 2644 | "%.200s instance has no __call__ method", |
| 2645 | PyString_AsString(inst->in_class->cl_name)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2646 | return NULL; |
| 2647 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2648 | res = call_object(call, arg, kw); |
| 2649 | Py_DECREF(call); |
| 2650 | return res; |
| 2651 | } |
| 2652 | |
| 2653 | static PyObject * |
| 2654 | call_method(PyObject *func, PyObject *arg, PyObject *kw) |
| 2655 | { |
| 2656 | PyObject *self = PyMethod_GET_SELF(func); |
| 2657 | PyObject *class = PyMethod_GET_CLASS(func); |
| 2658 | PyObject *result; |
| 2659 | |
| 2660 | func = PyMethod_GET_FUNCTION(func); |
| 2661 | if (self == NULL) { |
| 2662 | /* Unbound methods must be called with an instance of |
| 2663 | the class (or a derived class) as first argument */ |
| 2664 | if (PyTuple_Size(arg) >= 1) |
| 2665 | self = PyTuple_GET_ITEM(arg, 0); |
| 2666 | if (!(self != NULL && PyInstance_Check(self) |
| 2667 | && PyClass_IsSubclass((PyObject *) |
| 2668 | (((PyInstanceObject *)self)->in_class), |
| 2669 | class))) { |
| 2670 | PyErr_SetString(PyExc_TypeError, |
| 2671 | "unbound method must be called with instance as first argument"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2672 | return NULL; |
| 2673 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2674 | Py_INCREF(arg); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2675 | } else { |
| 2676 | int argcount = PyTuple_Size(arg); |
| 2677 | PyObject *newarg = PyTuple_New(argcount + 1); |
| 2678 | int i; |
| 2679 | if (newarg == NULL) |
| 2680 | return NULL; |
| 2681 | Py_INCREF(self); |
| 2682 | PyTuple_SET_ITEM(newarg, 0, self); |
| 2683 | for (i = 0; i < argcount; i++) { |
| 2684 | PyObject *v = PyTuple_GET_ITEM(arg, i); |
| 2685 | Py_XINCREF(v); |
| 2686 | PyTuple_SET_ITEM(newarg, i+1, v); |
| 2687 | } |
| 2688 | arg = newarg; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2689 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2690 | result = call_object(func, arg, kw); |
| 2691 | Py_DECREF(arg); |
| 2692 | return result; |
| 2693 | } |
| 2694 | |
| 2695 | static PyObject * |
| 2696 | call_eval_code2(PyObject *func, PyObject *arg, PyObject *kw) |
| 2697 | { |
| 2698 | PyObject *result; |
| 2699 | PyObject *argdefs; |
| 2700 | PyObject **d, **k; |
| 2701 | int nk, nd; |
| 2702 | |
| 2703 | argdefs = PyFunction_GET_DEFAULTS(func); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2704 | if (argdefs != NULL && PyTuple_Check(argdefs)) { |
| 2705 | d = &PyTuple_GET_ITEM((PyTupleObject *)argdefs, 0); |
| 2706 | nd = PyTuple_Size(argdefs); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2707 | } |
| 2708 | else { |
| 2709 | d = NULL; |
| 2710 | nd = 0; |
| 2711 | } |
| 2712 | |
| 2713 | if (kw != NULL) { |
| 2714 | int pos, i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2715 | nk = PyDict_Size(kw); |
| 2716 | k = PyMem_NEW(PyObject *, 2*nk); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2717 | if (k == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2718 | PyErr_NoMemory(); |
| 2719 | Py_DECREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2720 | return NULL; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2721 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2722 | pos = i = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2723 | while (PyDict_Next(kw, &pos, &k[i], &k[i+1])) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2724 | i += 2; |
| 2725 | nk = i/2; |
| 2726 | /* XXX This is broken if the caller deletes dict items! */ |
| 2727 | } |
| 2728 | else { |
| 2729 | k = NULL; |
| 2730 | nk = 0; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2731 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2732 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2733 | result = eval_code2( |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2734 | (PyCodeObject *)PyFunction_GET_CODE(func), |
| 2735 | PyFunction_GET_GLOBALS(func), (PyObject *)NULL, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2736 | &PyTuple_GET_ITEM(arg, 0), PyTuple_Size(arg), |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2737 | k, nk, |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2738 | d, nd); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2739 | |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 2740 | if (k != NULL) |
| 2741 | PyMem_DEL(k); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2742 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2743 | return result; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2744 | } |
| 2745 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2746 | #define EXT_POP(STACK_POINTER) (*--(STACK_POINTER)) |
| 2747 | |
| 2748 | /* The two fast_xxx() functions optimize calls for which no argument |
| 2749 | tuple is necessary; the objects are passed directly from the stack. |
| 2750 | fast_cfunction() is called for METH_OLDARGS functions. |
| 2751 | fast_function() is for functions with no special argument handling. |
| 2752 | */ |
| 2753 | |
| 2754 | static PyObject * |
| 2755 | fast_cfunction(PyObject *func, PyObject ***pp_stack, int na) |
| 2756 | { |
| 2757 | PyCFunction meth = PyCFunction_GET_FUNCTION(func); |
| 2758 | PyObject *self = PyCFunction_GET_SELF(func); |
| 2759 | |
| 2760 | if (na == 0) |
| 2761 | return (*meth)(self, NULL); |
Charles G. Waldman | eec72a7 | 2001-01-10 22:11:59 +0000 | [diff] [blame] | 2762 | else if (na == 1) { |
| 2763 | PyObject *arg = EXT_POP(*pp_stack); |
| 2764 | PyObject *result = (*meth)(self, arg); |
| 2765 | Py_DECREF(arg); |
| 2766 | return result; |
| 2767 | } else { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2768 | PyObject *args = load_args(pp_stack, na); |
| 2769 | PyObject *result = (*meth)(self, args); |
| 2770 | Py_DECREF(args); |
| 2771 | return result; |
| 2772 | } |
| 2773 | } |
| 2774 | |
| 2775 | static PyObject * |
| 2776 | fast_function(PyObject *func, PyObject ***pp_stack, int n, int na, int nk) |
| 2777 | { |
| 2778 | PyObject *co = PyFunction_GET_CODE(func); |
| 2779 | PyObject *globals = PyFunction_GET_GLOBALS(func); |
| 2780 | PyObject *argdefs = PyFunction_GET_DEFAULTS(func); |
| 2781 | PyObject **d = NULL; |
| 2782 | int nd = 0; |
| 2783 | |
| 2784 | if (argdefs != NULL) { |
| 2785 | d = &PyTuple_GET_ITEM(argdefs, 0); |
| 2786 | nd = ((PyTupleObject *)argdefs)->ob_size; |
| 2787 | } |
| 2788 | return eval_code2((PyCodeObject *)co, globals, |
| 2789 | (PyObject *)NULL, (*pp_stack)-n, na, |
| 2790 | (*pp_stack)-2*nk, nk, d, nd); |
| 2791 | } |
| 2792 | |
| 2793 | static PyObject * |
| 2794 | update_keyword_args(PyObject *orig_kwdict, int nk, PyObject ***pp_stack) |
| 2795 | { |
| 2796 | PyObject *kwdict = NULL; |
| 2797 | if (orig_kwdict == NULL) |
| 2798 | kwdict = PyDict_New(); |
| 2799 | else { |
| 2800 | kwdict = PyDict_Copy(orig_kwdict); |
| 2801 | Py_DECREF(orig_kwdict); |
| 2802 | } |
| 2803 | if (kwdict == NULL) |
| 2804 | return NULL; |
| 2805 | while (--nk >= 0) { |
| 2806 | int err; |
| 2807 | PyObject *value = EXT_POP(*pp_stack); |
| 2808 | PyObject *key = EXT_POP(*pp_stack); |
| 2809 | if (PyDict_GetItem(kwdict, key) != NULL) { |
| 2810 | PyErr_Format(PyExc_TypeError, |
| 2811 | "keyword parameter '%.400s' " |
| 2812 | "redefined in function call", |
| 2813 | PyString_AsString(key)); |
| 2814 | Py_DECREF(key); |
| 2815 | Py_DECREF(value); |
| 2816 | Py_DECREF(kwdict); |
| 2817 | return NULL; |
| 2818 | } |
| 2819 | err = PyDict_SetItem(kwdict, key, value); |
| 2820 | Py_DECREF(key); |
| 2821 | Py_DECREF(value); |
| 2822 | if (err) { |
| 2823 | Py_DECREF(kwdict); |
| 2824 | return NULL; |
| 2825 | } |
| 2826 | } |
| 2827 | return kwdict; |
| 2828 | } |
| 2829 | |
| 2830 | static PyObject * |
| 2831 | update_star_args(int nstack, int nstar, PyObject *stararg, |
| 2832 | PyObject ***pp_stack) |
| 2833 | { |
| 2834 | PyObject *callargs, *w; |
| 2835 | |
| 2836 | callargs = PyTuple_New(nstack + nstar); |
| 2837 | if (callargs == NULL) { |
| 2838 | return NULL; |
| 2839 | } |
| 2840 | if (nstar) { |
| 2841 | int i; |
| 2842 | for (i = 0; i < nstar; i++) { |
| 2843 | PyObject *a = PyTuple_GET_ITEM(stararg, i); |
| 2844 | Py_INCREF(a); |
| 2845 | PyTuple_SET_ITEM(callargs, nstack + i, a); |
| 2846 | } |
| 2847 | } |
| 2848 | while (--nstack >= 0) { |
| 2849 | w = EXT_POP(*pp_stack); |
| 2850 | PyTuple_SET_ITEM(callargs, nstack, w); |
| 2851 | } |
| 2852 | return callargs; |
| 2853 | } |
| 2854 | |
| 2855 | static PyObject * |
| 2856 | load_args(PyObject ***pp_stack, int na) |
| 2857 | { |
| 2858 | PyObject *args = PyTuple_New(na); |
| 2859 | PyObject *w; |
| 2860 | |
| 2861 | if (args == NULL) |
| 2862 | return NULL; |
| 2863 | while (--na >= 0) { |
| 2864 | w = EXT_POP(*pp_stack); |
| 2865 | PyTuple_SET_ITEM(args, na, w); |
| 2866 | } |
| 2867 | return args; |
| 2868 | } |
| 2869 | |
| 2870 | static PyObject * |
| 2871 | do_call(PyObject *func, PyObject ***pp_stack, int na, int nk) |
| 2872 | { |
| 2873 | PyObject *callargs = NULL; |
| 2874 | PyObject *kwdict = NULL; |
| 2875 | PyObject *result = NULL; |
| 2876 | |
| 2877 | if (nk > 0) { |
| 2878 | kwdict = update_keyword_args(NULL, nk, pp_stack); |
| 2879 | if (kwdict == NULL) |
| 2880 | goto call_fail; |
| 2881 | } |
| 2882 | callargs = load_args(pp_stack, na); |
| 2883 | if (callargs == NULL) |
| 2884 | goto call_fail; |
| 2885 | result = call_object(func, callargs, kwdict); |
| 2886 | call_fail: |
| 2887 | Py_XDECREF(callargs); |
| 2888 | Py_XDECREF(kwdict); |
| 2889 | return result; |
| 2890 | } |
| 2891 | |
| 2892 | static PyObject * |
| 2893 | ext_do_call(PyObject *func, PyObject ***pp_stack, int flags, int na, int nk) |
| 2894 | { |
| 2895 | int nstar = 0; |
| 2896 | PyObject *callargs = NULL; |
| 2897 | PyObject *stararg = NULL; |
| 2898 | PyObject *kwdict = NULL; |
| 2899 | PyObject *result = NULL; |
| 2900 | |
| 2901 | if (flags & CALL_FLAG_KW) { |
| 2902 | kwdict = EXT_POP(*pp_stack); |
| 2903 | if (!(kwdict && PyDict_Check(kwdict))) { |
| 2904 | PyErr_SetString(PyExc_TypeError, |
| 2905 | "** argument must be a dictionary"); |
| 2906 | goto ext_call_fail; |
| 2907 | } |
| 2908 | } |
| 2909 | if (flags & CALL_FLAG_VAR) { |
| 2910 | stararg = EXT_POP(*pp_stack); |
| 2911 | if (!PyTuple_Check(stararg)) { |
| 2912 | PyObject *t = NULL; |
| 2913 | t = PySequence_Tuple(stararg); |
| 2914 | if (t == NULL) { |
| 2915 | if (PyErr_ExceptionMatches(PyExc_TypeError)) { |
| 2916 | PyErr_SetString(PyExc_TypeError, |
| 2917 | "* argument must be a sequence"); |
| 2918 | } |
| 2919 | goto ext_call_fail; |
| 2920 | } |
| 2921 | Py_DECREF(stararg); |
| 2922 | stararg = t; |
| 2923 | } |
| 2924 | nstar = PyTuple_GET_SIZE(stararg); |
| 2925 | } |
| 2926 | if (nk > 0) { |
| 2927 | kwdict = update_keyword_args(kwdict, nk, pp_stack); |
| 2928 | if (kwdict == NULL) |
| 2929 | goto ext_call_fail; |
| 2930 | } |
| 2931 | callargs = update_star_args(na, nstar, stararg, pp_stack); |
| 2932 | if (callargs == NULL) |
| 2933 | goto ext_call_fail; |
| 2934 | result = call_object(func, callargs, kwdict); |
| 2935 | ext_call_fail: |
| 2936 | Py_XDECREF(callargs); |
| 2937 | Py_XDECREF(kwdict); |
| 2938 | Py_XDECREF(stararg); |
| 2939 | return result; |
| 2940 | } |
| 2941 | |
Guido van Rossum | 3b9c667 | 1996-07-30 18:40:29 +0000 | [diff] [blame] | 2942 | #define SLICE_ERROR_MSG \ |
| 2943 | "standard sequence type does not support step size other than one" |
| 2944 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2945 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2946 | loop_subscript(PyObject *v, PyObject *w) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2947 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2948 | PySequenceMethods *sq = v->ob_type->tp_as_sequence; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2949 | int i; |
Guido van Rossum | 7e33c6e | 1998-05-22 00:52:29 +0000 | [diff] [blame] | 2950 | if (sq == NULL || sq->sq_item == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2951 | PyErr_SetString(PyExc_TypeError, "loop over non-sequence"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2952 | return NULL; |
| 2953 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2954 | i = PyInt_AsLong(w); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2955 | v = (*sq->sq_item)(v, i); |
| 2956 | if (v) |
| 2957 | return v; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2958 | if (PyErr_ExceptionMatches(PyExc_IndexError)) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2959 | PyErr_Clear(); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2960 | return NULL; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2961 | } |
| 2962 | |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 2963 | /* Extract a slice index from a PyInt or PyLong, the index is bound to |
| 2964 | the range [-INT_MAX+1, INTMAX]. Returns 0 and an exception if there is |
| 2965 | and error. Returns 1 on success.*/ |
| 2966 | |
| 2967 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2968 | _PyEval_SliceIndex(PyObject *v, int *pi) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2969 | { |
| 2970 | if (v != NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2971 | long x; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 2972 | if (PyInt_Check(v)) { |
| 2973 | x = PyInt_AsLong(v); |
| 2974 | } else if (PyLong_Check(v)) { |
| 2975 | x = PyLong_AsLong(v); |
| 2976 | if (x==-1 && PyErr_Occurred()) { |
| 2977 | PyObject *long_zero; |
| 2978 | |
| 2979 | if (!PyErr_ExceptionMatches( PyExc_OverflowError ) ) { |
| 2980 | /* It's not an overflow error, so just |
| 2981 | signal an error */ |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 2982 | return 0; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 2983 | } |
| 2984 | |
| 2985 | /* It's an overflow error, so we need to |
| 2986 | check the sign of the long integer, |
| 2987 | set the value to INT_MAX or 0, and clear |
| 2988 | the error. */ |
| 2989 | |
| 2990 | /* Create a long integer with a value of 0 */ |
| 2991 | long_zero = PyLong_FromLong( 0L ); |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 2992 | if (long_zero == NULL) return 0; |
Andrew M. Kuchling | 2194b16 | 2000-02-23 22:18:48 +0000 | [diff] [blame] | 2993 | |
| 2994 | /* Check sign */ |
| 2995 | if (PyObject_Compare(long_zero, v) < 0) |
| 2996 | x = INT_MAX; |
| 2997 | else |
| 2998 | x = 0; |
| 2999 | |
| 3000 | /* Free the long integer we created, and clear the |
| 3001 | OverflowError */ |
| 3002 | Py_DECREF(long_zero); |
| 3003 | PyErr_Clear(); |
| 3004 | } |
| 3005 | } else { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3006 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3007 | "slice indices must be integers"); |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3008 | return 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3009 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3010 | /* Truncate -- very long indices are truncated anyway */ |
| 3011 | if (x > INT_MAX) |
| 3012 | x = INT_MAX; |
| 3013 | else if (x < -INT_MAX) |
| 3014 | x = 0; |
| 3015 | *pi = x; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3016 | } |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3017 | return 1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3018 | } |
| 3019 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3020 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3021 | 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] | 3022 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3023 | int ilow = 0, ihigh = INT_MAX; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3024 | if (!_PyEval_SliceIndex(v, &ilow)) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3025 | return NULL; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3026 | if (!_PyEval_SliceIndex(w, &ihigh)) |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3027 | return NULL; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3028 | return PySequence_GetSlice(u, ilow, ihigh); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3029 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3030 | |
| 3031 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3032 | assign_slice(PyObject *u, PyObject *v, PyObject *w, PyObject *x) /* u[v:w] = x */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3033 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3034 | int ilow = 0, ihigh = INT_MAX; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3035 | if (!_PyEval_SliceIndex(v, &ilow)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3036 | return -1; |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3037 | if (!_PyEval_SliceIndex(w, &ihigh)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3038 | return -1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3039 | if (x == NULL) |
| 3040 | return PySequence_DelSlice(u, ilow, ihigh); |
| 3041 | else |
| 3042 | return PySequence_SetSlice(u, ilow, ihigh, x); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3043 | } |
| 3044 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3045 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3046 | cmp_outcome(int op, register PyObject *v, register PyObject *w) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3047 | { |
| 3048 | register int cmp; |
| 3049 | register int res = 0; |
| 3050 | switch (op) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3051 | case IS: |
| 3052 | case IS_NOT: |
| 3053 | res = (v == w); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3054 | if (op == (int) IS_NOT) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3055 | res = !res; |
| 3056 | break; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3057 | case IN: |
| 3058 | case NOT_IN: |
Guido van Rossum | 7e33c6e | 1998-05-22 00:52:29 +0000 | [diff] [blame] | 3059 | res = PySequence_Contains(w, v); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3060 | if (res < 0) |
| 3061 | return NULL; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 3062 | if (op == (int) NOT_IN) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3063 | res = !res; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3064 | break; |
| 3065 | case EXC_MATCH: |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 3066 | res = PyErr_GivenExceptionMatches(v, w); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3067 | break; |
| 3068 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3069 | cmp = PyObject_Compare(v, w); |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 3070 | if (cmp && PyErr_Occurred()) |
| 3071 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3072 | switch (op) { |
| 3073 | case LT: res = cmp < 0; break; |
| 3074 | case LE: res = cmp <= 0; break; |
| 3075 | case EQ: res = cmp == 0; break; |
| 3076 | case NE: res = cmp != 0; break; |
| 3077 | case GT: res = cmp > 0; break; |
| 3078 | case GE: res = cmp >= 0; break; |
| 3079 | /* XXX no default? (res is initialized to 0 though) */ |
| 3080 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3081 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3082 | v = res ? Py_True : Py_False; |
| 3083 | Py_INCREF(v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3084 | return v; |
| 3085 | } |
| 3086 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3087 | static PyObject * |
| 3088 | import_from(PyObject *v, PyObject *name) |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3089 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3090 | PyObject *w, *x; |
| 3091 | if (!PyModule_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3092 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3093 | "import-from requires a module object"); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3094 | return NULL; |
| 3095 | } |
| 3096 | w = PyModule_GetDict(v); /* TDB: can this not fail ? */ |
| 3097 | x = PyDict_GetItem(w, name); |
| 3098 | if (x == NULL) { |
| 3099 | PyErr_Format(PyExc_ImportError, |
| 3100 | "cannot import name %.230s", |
| 3101 | PyString_AsString(name)); |
| 3102 | } else |
| 3103 | Py_INCREF(x); |
| 3104 | return x; |
| 3105 | } |
| 3106 | |
| 3107 | static int |
| 3108 | import_all_from(PyObject *locals, PyObject *v) |
| 3109 | { |
| 3110 | int pos = 0, err; |
| 3111 | PyObject *name, *value; |
| 3112 | PyObject *w; |
| 3113 | |
| 3114 | if (!PyModule_Check(v)) { |
| 3115 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3116 | "import-from requires a module object"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 3117 | return -1; |
| 3118 | } |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3119 | w = PyModule_GetDict(v); /* TBD: can this not fail ? */ |
| 3120 | |
| 3121 | while (PyDict_Next(w, &pos, &name, &value)) { |
| 3122 | if (!PyString_Check(name) || |
| 3123 | PyString_AsString(name)[0] == '_') |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3124 | continue; |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3125 | Py_INCREF(value); |
| 3126 | err = PyDict_SetItem(locals, name, value); |
| 3127 | Py_DECREF(value); |
| 3128 | if (err != 0) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3129 | return -1; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3130 | } |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3131 | return 0; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3132 | } |
| 3133 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3134 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3135 | build_class(PyObject *methods, PyObject *bases, PyObject *name) |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3136 | { |
Guido van Rossum | cd64965 | 1997-08-22 16:56:16 +0000 | [diff] [blame] | 3137 | int i, n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3138 | if (!PyTuple_Check(bases)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3139 | PyErr_SetString(PyExc_SystemError, |
| 3140 | "build_class with non-tuple bases"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3141 | return NULL; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3142 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3143 | if (!PyDict_Check(methods)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3144 | PyErr_SetString(PyExc_SystemError, |
| 3145 | "build_class with non-dictionary"); |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3146 | return NULL; |
| 3147 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3148 | if (!PyString_Check(name)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3149 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 7a5b796 | 2000-03-31 13:52:29 +0000 | [diff] [blame] | 3150 | "build_class with non-string name"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3151 | return NULL; |
| 3152 | } |
Guido van Rossum | cd64965 | 1997-08-22 16:56:16 +0000 | [diff] [blame] | 3153 | n = PyTuple_Size(bases); |
| 3154 | for (i = 0; i < n; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3155 | PyObject *base = PyTuple_GET_ITEM(bases, i); |
| 3156 | if (!PyClass_Check(base)) { |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 3157 | /* Call the base's *type*, if it is callable. |
| 3158 | This code is a hook for Donald Beaudry's |
| 3159 | and Jim Fulton's type extensions. In |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 3160 | unextended Python it will never be triggered |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3161 | since its types are not callable. |
| 3162 | Ditto: call the bases's *class*, if it has |
| 3163 | one. This makes the same thing possible |
| 3164 | without writing C code. A true meta-object |
| 3165 | protocol! */ |
| 3166 | PyObject *basetype = (PyObject *)base->ob_type; |
| 3167 | PyObject *callable = NULL; |
| 3168 | if (PyCallable_Check(basetype)) |
| 3169 | callable = basetype; |
| 3170 | else |
| 3171 | callable = PyObject_GetAttrString( |
| 3172 | base, "__class__"); |
| 3173 | if (callable) { |
| 3174 | PyObject *args; |
| 3175 | PyObject *newclass = NULL; |
| 3176 | args = Py_BuildValue( |
| 3177 | "(OOO)", name, bases, methods); |
| 3178 | if (args != NULL) { |
| 3179 | newclass = PyEval_CallObject( |
| 3180 | callable, args); |
| 3181 | Py_DECREF(args); |
| 3182 | } |
Guido van Rossum | 730806d | 1998-04-10 22:27:42 +0000 | [diff] [blame] | 3183 | if (callable != basetype) { |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3184 | Py_DECREF(callable); |
Guido van Rossum | 730806d | 1998-04-10 22:27:42 +0000 | [diff] [blame] | 3185 | } |
Guido van Rossum | 55b9ab5 | 1997-07-31 03:54:02 +0000 | [diff] [blame] | 3186 | return newclass; |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 3187 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3188 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3189 | "base is not a class object"); |
| 3190 | return NULL; |
| 3191 | } |
| 3192 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3193 | return PyClass_New(bases, methods, name); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 3194 | } |
| 3195 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3196 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3197 | exec_statement(PyFrameObject *f, PyObject *prog, PyObject *globals, |
| 3198 | PyObject *locals) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3199 | { |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3200 | int n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3201 | PyObject *v; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3202 | int plain = 0; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3203 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3204 | if (PyTuple_Check(prog) && globals == Py_None && locals == Py_None && |
| 3205 | ((n = PyTuple_Size(prog)) == 2 || n == 3)) { |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3206 | /* Backward compatibility hack */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3207 | globals = PyTuple_GetItem(prog, 1); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3208 | if (n == 3) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3209 | locals = PyTuple_GetItem(prog, 2); |
| 3210 | prog = PyTuple_GetItem(prog, 0); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3211 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3212 | if (globals == Py_None) { |
| 3213 | globals = PyEval_GetGlobals(); |
| 3214 | if (locals == Py_None) { |
| 3215 | locals = PyEval_GetLocals(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3216 | plain = 1; |
| 3217 | } |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3218 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3219 | else if (locals == Py_None) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3220 | locals = globals; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3221 | if (!PyString_Check(prog) && |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 3222 | !PyUnicode_Check(prog) && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3223 | !PyCode_Check(prog) && |
| 3224 | !PyFile_Check(prog)) { |
| 3225 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3226 | "exec: arg 1 must be a string, file, or code object"); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3227 | return -1; |
| 3228 | } |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3229 | if (!PyDict_Check(globals)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3230 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 3231 | "exec: arg 2 must be a dictionary or None"); |
| 3232 | return -1; |
| 3233 | } |
| 3234 | if (!PyDict_Check(locals)) { |
| 3235 | PyErr_SetString(PyExc_TypeError, |
| 3236 | "exec: arg 3 must be a dictionary or None"); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3237 | return -1; |
| 3238 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3239 | if (PyDict_GetItemString(globals, "__builtins__") == NULL) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3240 | PyDict_SetItemString(globals, "__builtins__", f->f_builtins); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3241 | if (PyCode_Check(prog)) { |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3242 | v = PyEval_EvalCode((PyCodeObject *) prog, globals, locals); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3243 | } |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3244 | else if (PyFile_Check(prog)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3245 | FILE *fp = PyFile_AsFile(prog); |
| 3246 | char *name = PyString_AsString(PyFile_Name(prog)); |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3247 | v = PyRun_File(fp, name, Py_file_input, globals, locals); |
| 3248 | } |
| 3249 | else { |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 3250 | char *str; |
| 3251 | if (PyString_AsStringAndSize(prog, &str, NULL)) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3252 | return -1; |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 3253 | v = PyRun_String(str, Py_file_input, globals, locals); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3254 | } |
Guido van Rossum | a400d8a | 2000-01-12 22:45:54 +0000 | [diff] [blame] | 3255 | if (plain) |
| 3256 | PyFrame_LocalsToFast(f, 0); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3257 | if (v == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3258 | return -1; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3259 | Py_DECREF(v); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3260 | return 0; |
| 3261 | } |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3262 | |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 3263 | static void |
| 3264 | format_exc_check_arg(PyObject *exc, char *format_str, PyObject *obj) |
| 3265 | { |
| 3266 | char *obj_str; |
| 3267 | |
| 3268 | if (!obj) |
| 3269 | return; |
| 3270 | |
| 3271 | obj_str = PyString_AsString(obj); |
| 3272 | if (!obj_str) |
| 3273 | return; |
| 3274 | |
| 3275 | PyErr_Format(exc, format_str, obj_str); |
| 3276 | } |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3277 | |
| 3278 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 3279 | |
| 3280 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3281 | getarray(long a[256]) |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3282 | { |
| 3283 | int i; |
| 3284 | PyObject *l = PyList_New(256); |
| 3285 | if (l == NULL) return NULL; |
| 3286 | for (i = 0; i < 256; i++) { |
| 3287 | PyObject *x = PyInt_FromLong(a[i]); |
| 3288 | if (x == NULL) { |
| 3289 | Py_DECREF(l); |
| 3290 | return NULL; |
| 3291 | } |
| 3292 | PyList_SetItem(l, i, x); |
| 3293 | } |
| 3294 | for (i = 0; i < 256; i++) |
| 3295 | a[i] = 0; |
| 3296 | return l; |
| 3297 | } |
| 3298 | |
| 3299 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3300 | _Py_GetDXProfile(PyObject *self, PyObject *args) |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3301 | { |
| 3302 | #ifndef DXPAIRS |
| 3303 | return getarray(dxp); |
| 3304 | #else |
| 3305 | int i; |
| 3306 | PyObject *l = PyList_New(257); |
| 3307 | if (l == NULL) return NULL; |
| 3308 | for (i = 0; i < 257; i++) { |
| 3309 | PyObject *x = getarray(dxpairs[i]); |
| 3310 | if (x == NULL) { |
| 3311 | Py_DECREF(l); |
| 3312 | return NULL; |
| 3313 | } |
| 3314 | PyList_SetItem(l, i, x); |
| 3315 | } |
| 3316 | return l; |
| 3317 | #endif |
| 3318 | } |
| 3319 | |
| 3320 | #endif |