Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 9 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 10 | both that copyright notice and this permission notice appear in |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 11 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 12 | Centrum or CWI or Corporation for National Research Initiatives or |
| 13 | CNRI not be used in advertising or publicity pertaining to |
| 14 | distribution of the software without specific, written prior |
| 15 | permission. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 16 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 17 | While CWI is the initial source for this software, a modified version |
| 18 | is made available by the Corporation for National Research Initiatives |
| 19 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 22 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 23 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 24 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 25 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 26 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 27 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 28 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
| 31 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 32 | /* Execute compiled code */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 33 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 34 | /* XXX TO DO: |
| 35 | XXX how to pass arguments to call_trace? |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 36 | XXX speed up searching for keywords by using a dictionary |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 37 | XXX document it! |
| 38 | */ |
| 39 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 40 | #include "Python.h" |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 41 | |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 42 | #include "compile.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 43 | #include "frameobject.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 44 | #include "eval.h" |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 45 | #include "opcode.h" |
| 46 | |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 47 | #include <ctype.h> |
| 48 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 49 | #ifdef HAVE_LIMITS_H |
| 50 | #include <limits.h> |
| 51 | #else |
| 52 | #define INT_MAX 2147483647 |
| 53 | #endif |
| 54 | |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 55 | /* Turn this on if your compiler chokes on the big switch: */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 56 | /* #define CASE_TOO_BIG 1 */ |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 57 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 58 | #ifdef Py_DEBUG |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 59 | /* For debugging the interpreter: */ |
| 60 | #define LLTRACE 1 /* Low-level trace feature */ |
| 61 | #define CHECKEXC 1 /* Double-check exception checking */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 62 | #endif |
| 63 | |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 64 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 65 | /* Forward declarations */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 66 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 67 | static PyObject *eval_code2 Py_PROTO((PyCodeObject *, |
| 68 | PyObject *, PyObject *, |
| 69 | PyObject **, int, |
| 70 | PyObject **, int, |
| 71 | PyObject **, int, |
| 72 | PyObject *)); |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 73 | #ifdef LLTRACE |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 74 | static int prtrace Py_PROTO((PyObject *, char *)); |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 75 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 76 | static void call_exc_trace Py_PROTO((PyObject **, PyObject**, |
| 77 | PyFrameObject *)); |
| 78 | static int call_trace Py_PROTO((PyObject **, PyObject **, |
| 79 | PyFrameObject *, char *, PyObject *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 80 | static PyObject *call_builtin Py_PROTO((PyObject *, PyObject *, PyObject *)); |
| 81 | static PyObject *call_function Py_PROTO((PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 82 | static PyObject *loop_subscript Py_PROTO((PyObject *, PyObject *)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 83 | static int slice_index Py_PROTO((PyObject *, int *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 84 | static PyObject *apply_slice Py_PROTO((PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 85 | static int assign_slice Py_PROTO((PyObject *, PyObject *, |
| 86 | PyObject *, PyObject *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 87 | static int cmp_exception Py_PROTO((PyObject *, PyObject *)); |
| 88 | static int cmp_member Py_PROTO((PyObject *, PyObject *)); |
| 89 | static PyObject *cmp_outcome Py_PROTO((int, PyObject *, PyObject *)); |
| 90 | static int import_from Py_PROTO((PyObject *, PyObject *, PyObject *)); |
| 91 | static PyObject *build_class Py_PROTO((PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 92 | static int exec_statement Py_PROTO((PyFrameObject *, |
| 93 | PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 94 | static PyObject *find_from_args Py_PROTO((PyFrameObject *, int)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 95 | static void set_exc_info Py_PROTO((PyThreadState *, |
| 96 | PyObject *, PyObject *, PyObject *)); |
| 97 | static void reset_exc_info Py_PROTO((PyThreadState *)); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 98 | |
| 99 | |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 100 | /* Dynamic execution profile */ |
| 101 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 102 | #ifdef DXPAIRS |
| 103 | static long dxpairs[257][256]; |
| 104 | #define dxp dxpairs[256] |
| 105 | #else |
| 106 | static long dxp[256]; |
| 107 | #endif |
| 108 | #endif |
| 109 | |
| 110 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 111 | #ifdef WITH_THREAD |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 112 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 113 | #include <errno.h> |
| 114 | #include "thread.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 115 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 116 | extern int _PyThread_Started; /* Flag for Py_Exit */ |
| 117 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 118 | static type_lock interpreter_lock = 0; |
| 119 | static long main_thread = 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 120 | |
| 121 | void |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 122 | PyEval_InitThreads() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 123 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 124 | if (interpreter_lock) |
Sjoerd Mullender | ed59d20 | 1993-01-06 13:36:38 +0000 | [diff] [blame] | 125 | return; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 126 | _PyThread_Started = 1; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 127 | interpreter_lock = allocate_lock(); |
| 128 | acquire_lock(interpreter_lock, 1); |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 129 | main_thread = get_thread_ident(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 130 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 131 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 132 | #endif |
| 133 | |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 134 | /* Functions save_thread and restore_thread are always defined so |
| 135 | dynamically loaded modules needn't be compiled separately for use |
| 136 | with and without threads: */ |
| 137 | |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame^] | 138 | PyThreadState * |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 139 | PyEval_SaveThread() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 140 | { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 141 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 142 | if (interpreter_lock) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 143 | PyThreadState *tstate = PyThreadState_Swap(NULL); |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame^] | 144 | if (tstate == NULL) |
| 145 | Py_FatalError("PyEval_SaveThread: NULL tstate"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 146 | release_lock(interpreter_lock); |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame^] | 147 | return tstate; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 148 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 149 | #endif |
Guido van Rossum | 9575a44 | 1993-04-07 14:06:14 +0000 | [diff] [blame] | 150 | return NULL; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | void |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame^] | 154 | PyEval_RestoreThread(tstate) |
| 155 | PyThreadState *tstate; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 156 | { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 157 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 158 | if (interpreter_lock) { |
| 159 | int err; |
| 160 | err = errno; |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame^] | 161 | if (tstate == NULL) |
| 162 | Py_FatalError("PyEval_RestoreThread: NULL tstate"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 163 | acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame^] | 164 | PyThreadState_Swap(tstate); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 165 | errno = err; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 166 | } |
| 167 | #endif |
| 168 | } |
| 169 | |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame^] | 170 | #ifdef WITH_THREAD |
| 171 | void |
| 172 | PyEval_AcquireThread(tstate) |
| 173 | PyThreadState *tstate; |
| 174 | { |
| 175 | acquire_lock(interpreter_lock, 1); |
| 176 | if (PyThreadState_Swap(tstate) != NULL) |
| 177 | Py_FatalError("PyEval_AcquireThread: non-NULL old state"); |
| 178 | } |
| 179 | |
| 180 | void |
| 181 | PyEval_ReleaseThread(tstate) |
| 182 | PyThreadState *tstate; |
| 183 | { |
| 184 | if (PyThreadState_Swap(NULL) != tstate) |
| 185 | Py_FatalError("PyEval_ReleaseThread: wrong thread state"); |
| 186 | release_lock(interpreter_lock); |
| 187 | } |
| 188 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 189 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 190 | /* Mechanism whereby asynchronously executing callbacks (e.g. UNIX |
| 191 | signal handlers or Mac I/O completion routines) can schedule calls |
| 192 | to a function to be called synchronously. |
| 193 | The synchronous function is called with one void* argument. |
| 194 | It should return 0 for success or -1 for failure -- failure should |
| 195 | be accompanied by an exception. |
| 196 | |
| 197 | If registry succeeds, the registry function returns 0; if it fails |
| 198 | (e.g. due to too many pending calls) it returns -1 (without setting |
| 199 | an exception condition). |
| 200 | |
| 201 | Note that because registry may occur from within signal handlers, |
| 202 | or other asynchronous events, calling malloc() is unsafe! |
| 203 | |
| 204 | #ifdef WITH_THREAD |
| 205 | Any thread can schedule pending calls, but only the main thread |
| 206 | will execute them. |
| 207 | #endif |
| 208 | |
| 209 | XXX WARNING! ASYNCHRONOUSLY EXECUTING CODE! |
| 210 | There are two possible race conditions: |
| 211 | (1) nested asynchronous registry calls; |
| 212 | (2) registry calls made while pending calls are being processed. |
| 213 | While (1) is very unlikely, (2) is a real possibility. |
| 214 | The current code is safe against (2), but not against (1). |
| 215 | The safety against (2) is derived from the fact that only one |
| 216 | thread (the main thread) ever takes things out of the queue. |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 217 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 218 | XXX Darn! With the advent of thread state, we should have an array |
| 219 | of pending calls per thread in the thread state! Later... |
| 220 | */ |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 221 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 222 | #define NPENDINGCALLS 32 |
| 223 | static struct { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 224 | int (*func) Py_PROTO((ANY *)); |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 225 | ANY *arg; |
| 226 | } pendingcalls[NPENDINGCALLS]; |
| 227 | static volatile int pendingfirst = 0; |
| 228 | static volatile int pendinglast = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 229 | static volatile int things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 230 | |
| 231 | int |
| 232 | Py_AddPendingCall(func, arg) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 233 | int (*func) Py_PROTO((ANY *)); |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 234 | ANY *arg; |
| 235 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 236 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 237 | int i, j; |
| 238 | /* XXX Begin critical section */ |
| 239 | /* XXX If you want this to be safe against nested |
| 240 | XXX asynchronous calls, you'll have to work harder! */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 241 | if (busy) |
| 242 | return -1; |
| 243 | busy = 1; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 244 | i = pendinglast; |
| 245 | j = (i + 1) % NPENDINGCALLS; |
| 246 | if (j == pendingfirst) |
| 247 | return -1; /* Queue full */ |
| 248 | pendingcalls[i].func = func; |
| 249 | pendingcalls[i].arg = arg; |
| 250 | pendinglast = j; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 251 | things_to_do = 1; /* Signal main loop */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 252 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 253 | /* XXX End critical section */ |
| 254 | return 0; |
| 255 | } |
| 256 | |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 257 | int |
| 258 | Py_MakePendingCalls() |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 259 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 260 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 261 | #ifdef WITH_THREAD |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 262 | if (main_thread && get_thread_ident() != main_thread) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 263 | return 0; |
| 264 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 265 | if (busy) |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 266 | return 0; |
| 267 | busy = 1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 268 | things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 269 | for (;;) { |
| 270 | int i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 271 | int (*func) Py_PROTO((ANY *)); |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 272 | ANY *arg; |
| 273 | i = pendingfirst; |
| 274 | if (i == pendinglast) |
| 275 | break; /* Queue empty */ |
| 276 | func = pendingcalls[i].func; |
| 277 | arg = pendingcalls[i].arg; |
| 278 | pendingfirst = (i + 1) % NPENDINGCALLS; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 279 | if (func(arg) < 0) { |
| 280 | busy = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 281 | things_to_do = 1; /* We're not done yet */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 282 | return -1; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 283 | } |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 284 | } |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 285 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 286 | return 0; |
| 287 | } |
| 288 | |
| 289 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 290 | /* Status code for main loop (reason for stack unwind) */ |
| 291 | |
| 292 | enum why_code { |
| 293 | WHY_NOT, /* No error */ |
| 294 | WHY_EXCEPTION, /* Exception occurred */ |
| 295 | WHY_RERAISE, /* Exception re-raised by 'finally' */ |
| 296 | WHY_RETURN, /* 'return' statement */ |
| 297 | WHY_BREAK /* 'break' statement */ |
| 298 | }; |
| 299 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 300 | static enum why_code do_raise Py_PROTO((PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 301 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 302 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 303 | /* Backward compatible interface */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 304 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 305 | PyObject * |
| 306 | PyEval_EvalCode(co, globals, locals) |
| 307 | PyCodeObject *co; |
| 308 | PyObject *globals; |
| 309 | PyObject *locals; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 310 | { |
| 311 | return eval_code2(co, |
| 312 | globals, locals, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 313 | (PyObject **)NULL, 0, |
| 314 | (PyObject **)NULL, 0, |
| 315 | (PyObject **)NULL, 0, |
| 316 | (PyObject *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | |
| 320 | /* Interpreter main loop */ |
| 321 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 322 | #ifndef MAX_RECURSION_DEPTH |
| 323 | #define MAX_RECURSION_DEPTH 10000 |
| 324 | #endif |
| 325 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 326 | static PyObject * |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 327 | eval_code2(co, globals, locals, |
| 328 | args, argcount, kws, kwcount, defs, defcount, owner) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 329 | PyCodeObject *co; |
| 330 | PyObject *globals; |
| 331 | PyObject *locals; |
| 332 | PyObject **args; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 333 | int argcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 334 | PyObject **kws; /* length: 2*kwcount */ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 335 | int kwcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 336 | PyObject **defs; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 337 | int defcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 338 | PyObject *owner; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 339 | { |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 340 | #ifdef DXPAIRS |
| 341 | int lastopcode = 0; |
| 342 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 343 | register unsigned char *next_instr; |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 344 | register int opcode = 0; /* Current opcode */ |
| 345 | register int oparg = 0; /* Current opcode argument, if any */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 346 | register PyObject **stack_pointer; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 347 | register enum why_code why; /* Reason for block stack unwind */ |
| 348 | register int err; /* Error status -- nonzero if error */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 349 | register PyObject *x; /* Result object -- NULL if error */ |
| 350 | register PyObject *v; /* Temporary objects popped off stack */ |
| 351 | register PyObject *w; |
| 352 | register PyObject *u; |
| 353 | register PyObject *t; |
| 354 | register PyFrameObject *f; /* Current frame */ |
| 355 | register PyObject **fastlocals = NULL; |
| 356 | PyObject *retval = NULL; /* Return value */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 357 | PyThreadState *tstate = PyThreadState_Get(); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 358 | #ifdef LLTRACE |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 359 | int lltrace; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 360 | #endif |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 361 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 362 | /* 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] | 363 | char *filename = PyString_AsString(co->co_filename); |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 364 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 365 | |
| 366 | /* Code access macros */ |
| 367 | |
| 368 | #define GETCONST(i) Getconst(f, i) |
| 369 | #define GETNAME(i) Getname(f, i) |
| 370 | #define GETNAMEV(i) Getnamev(f, i) |
Guido van Rossum | deb0c5e | 1997-01-27 23:42:36 +0000 | [diff] [blame] | 371 | #define FIRST_INSTR() (GETUSTRINGVALUE(co->co_code)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 372 | #define INSTR_OFFSET() (next_instr - FIRST_INSTR()) |
| 373 | #define NEXTOP() (*next_instr++) |
| 374 | #define NEXTARG() (next_instr += 2, (next_instr[-1]<<8) + next_instr[-2]) |
| 375 | #define JUMPTO(x) (next_instr = FIRST_INSTR() + (x)) |
| 376 | #define JUMPBY(x) (next_instr += (x)) |
| 377 | |
| 378 | /* Stack manipulation macros */ |
| 379 | |
| 380 | #define STACK_LEVEL() (stack_pointer - f->f_valuestack) |
| 381 | #define EMPTY() (STACK_LEVEL() == 0) |
| 382 | #define TOP() (stack_pointer[-1]) |
| 383 | #define BASIC_PUSH(v) (*stack_pointer++ = (v)) |
| 384 | #define BASIC_POP() (*--stack_pointer) |
| 385 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 386 | #ifdef LLTRACE |
| 387 | #define PUSH(v) (BASIC_PUSH(v), lltrace && prtrace(TOP(), "push")) |
| 388 | #define POP() (lltrace && prtrace(TOP(), "pop"), BASIC_POP()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 389 | #else |
| 390 | #define PUSH(v) BASIC_PUSH(v) |
| 391 | #define POP() BASIC_POP() |
| 392 | #endif |
| 393 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 394 | /* Local variable macros */ |
| 395 | |
| 396 | #define GETLOCAL(i) (fastlocals[i]) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 397 | #define SETLOCAL(i, value) do { Py_XDECREF(GETLOCAL(i)); \ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 398 | GETLOCAL(i) = value; } while (0) |
| 399 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 400 | /* Start of code */ |
| 401 | |
| 402 | if (tstate == NULL) |
| 403 | Py_FatalError("eval_code2 called without a current thread"); |
| 404 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 405 | #ifdef USE_STACKCHECK |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 406 | if (tstate->recursion_depth%10 == 0 && PyOS_CheckStack()) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 407 | PyErr_SetString(PyExc_MemoryError, "Stack overflow"); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 408 | return NULL; |
| 409 | } |
| 410 | #endif |
| 411 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 412 | if (globals == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 413 | PyErr_SetString(PyExc_SystemError, "eval_code2: NULL globals"); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 414 | return NULL; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 415 | } |
| 416 | |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 417 | #ifdef LLTRACE |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 418 | lltrace = PyDict_GetItemString(globals, "__lltrace__") != NULL; |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 419 | #endif |
| 420 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 421 | f = PyFrame_New( |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 422 | tstate, /*back*/ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 423 | co, /*code*/ |
| 424 | globals, /*globals*/ |
Guido van Rossum | 7683602 | 1997-01-20 04:26:20 +0000 | [diff] [blame] | 425 | locals); /*locals*/ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 426 | if (f == NULL) |
| 427 | return NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 428 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 429 | tstate->frame = f; |
Guido van Rossum | deb0c5e | 1997-01-27 23:42:36 +0000 | [diff] [blame] | 430 | fastlocals = f->f_localsplus; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 431 | |
| 432 | if (co->co_argcount > 0 || |
| 433 | co->co_flags & (CO_VARARGS | CO_VARKEYWORDS)) { |
| 434 | int i; |
| 435 | int n = argcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 436 | PyObject *kwdict = NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 437 | if (co->co_flags & CO_VARKEYWORDS) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 438 | kwdict = PyDict_New(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 439 | if (kwdict == NULL) |
| 440 | goto fail; |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 441 | i = co->co_argcount; |
| 442 | if (co->co_flags & CO_VARARGS) |
| 443 | i++; |
| 444 | SETLOCAL(i, kwdict); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 445 | } |
| 446 | if (argcount > co->co_argcount) { |
| 447 | if (!(co->co_flags & CO_VARARGS)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 448 | PyErr_SetString(PyExc_TypeError, |
| 449 | "too many arguments"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 450 | goto fail; |
| 451 | } |
| 452 | n = co->co_argcount; |
| 453 | } |
| 454 | for (i = 0; i < n; i++) { |
| 455 | x = args[i]; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 456 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 457 | SETLOCAL(i, x); |
| 458 | } |
| 459 | if (co->co_flags & CO_VARARGS) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 460 | u = PyTuple_New(argcount - n); |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 461 | if (u == NULL) |
| 462 | goto fail; |
| 463 | SETLOCAL(co->co_argcount, u); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 464 | for (i = n; i < argcount; i++) { |
| 465 | x = args[i]; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 466 | Py_INCREF(x); |
| 467 | PyTuple_SET_ITEM(u, i-n, x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 468 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 469 | } |
| 470 | for (i = 0; i < kwcount; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 471 | PyObject *keyword = kws[2*i]; |
| 472 | PyObject *value = kws[2*i + 1]; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 473 | int j; |
| 474 | /* XXX slow -- speed up using dictionary? */ |
| 475 | for (j = 0; j < co->co_argcount; j++) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 476 | PyObject *nm = PyTuple_GET_ITEM( |
| 477 | co->co_varnames, j); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 478 | if (PyObject_Compare(keyword, nm) == 0) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 479 | break; |
| 480 | } |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 481 | /* Check errors from Compare */ |
| 482 | if (PyErr_Occurred()) |
| 483 | goto fail; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 484 | if (j >= co->co_argcount) { |
| 485 | if (kwdict == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 486 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 487 | "unexpected keyword argument: %.400s", |
| 488 | PyString_AsString(keyword)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 489 | goto fail; |
| 490 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 491 | PyDict_SetItem(kwdict, keyword, value); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 492 | } |
| 493 | else { |
| 494 | if (GETLOCAL(j) != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 495 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 496 | "keyword parameter redefined"); |
| 497 | goto fail; |
| 498 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 499 | Py_INCREF(value); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 500 | SETLOCAL(j, value); |
| 501 | } |
| 502 | } |
| 503 | if (argcount < co->co_argcount) { |
| 504 | int m = co->co_argcount - defcount; |
| 505 | for (i = argcount; i < m; i++) { |
| 506 | if (GETLOCAL(i) == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 507 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 508 | "not enough arguments"); |
| 509 | goto fail; |
| 510 | } |
| 511 | } |
| 512 | if (n > m) |
| 513 | i = n - m; |
| 514 | else |
| 515 | i = 0; |
| 516 | for (; i < defcount; i++) { |
| 517 | if (GETLOCAL(m+i) == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 518 | PyObject *def = defs[i]; |
| 519 | Py_INCREF(def); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 520 | SETLOCAL(m+i, def); |
| 521 | } |
| 522 | } |
| 523 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 524 | } |
| 525 | else { |
| 526 | if (argcount > 0 || kwcount > 0) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 527 | PyErr_SetString(PyExc_TypeError, |
| 528 | "no arguments expected"); |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 529 | goto fail; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 530 | } |
| 531 | } |
| 532 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 533 | if (tstate->sys_tracefunc != NULL) { |
| 534 | /* tstate->sys_tracefunc, if defined, is a function that |
| 535 | will be called on *every* entry to a code block. |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 536 | Its return value, if not None, is a function that |
| 537 | will be called at the start of each executed line |
| 538 | of code. (Actually, the function must return |
| 539 | itself in order to continue tracing.) |
| 540 | The trace functions are called with three arguments: |
| 541 | a pointer to the current frame, a string indicating |
| 542 | why the function is called, and an argument which |
| 543 | depends on the situation. The global trace function |
| 544 | (sys.trace) is also called whenever an exception |
| 545 | is detected. */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 546 | if (call_trace(&tstate->sys_tracefunc, |
| 547 | &f->f_trace, f, "call", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 548 | Py_None/*XXX how to compute arguments now?*/)) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 549 | /* Trace function raised an error */ |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 550 | goto fail; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 551 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 552 | } |
| 553 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 554 | if (tstate->sys_profilefunc != NULL) { |
| 555 | /* Similar for sys_profilefunc, except it needn't return |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 556 | itself and isn't called for "line" events */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 557 | if (call_trace(&tstate->sys_profilefunc, |
| 558 | (PyObject**)0, f, "call", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 559 | Py_None/*XXX*/)) { |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 560 | goto fail; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 561 | } |
| 562 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 563 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 564 | if (++tstate->recursion_depth > MAX_RECURSION_DEPTH) { |
| 565 | --tstate->recursion_depth; |
| 566 | PyErr_SetString(PyExc_RuntimeError, |
| 567 | "Maximum recursion depth exceeded"); |
| 568 | tstate->frame = f->f_back; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 569 | Py_DECREF(f); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 570 | return NULL; |
| 571 | } |
| 572 | |
Guido van Rossum | deb0c5e | 1997-01-27 23:42:36 +0000 | [diff] [blame] | 573 | next_instr = GETUSTRINGVALUE(co->co_code); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 574 | stack_pointer = f->f_valuestack; |
| 575 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 576 | why = WHY_NOT; |
| 577 | err = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 578 | x = Py_None; /* Not a reference, just anything non-NULL */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 579 | |
| 580 | for (;;) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 581 | /* Do periodic things. Doing this every time through |
| 582 | the loop would add too much overhead, so we do it |
| 583 | only every Nth instruction. We also do it if |
| 584 | ``things_to_do'' is set, i.e. when an asynchronous |
| 585 | event needs attention (e.g. a signal handler or |
| 586 | async I/O handler); see Py_AddPendingCall() and |
| 587 | Py_MakePendingCalls() above. */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 588 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 589 | if (things_to_do || --tstate->ticker < 0) { |
| 590 | tstate->ticker = tstate->sys_checkinterval; |
| 591 | if (things_to_do) { |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 592 | if (Py_MakePendingCalls() < 0) { |
| 593 | why = WHY_EXCEPTION; |
| 594 | goto on_error; |
| 595 | } |
| 596 | } |
Guido van Rossum | df0d00e | 1997-05-20 15:57:49 +0000 | [diff] [blame] | 597 | #if !defined(HAVE_SIGNAL_H) || defined(macintosh) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 598 | /* If we have true signals, the signal handler |
| 599 | will call Py_AddPendingCall() so we don't |
| 600 | have to call sigcheck(). On the Mac and |
| 601 | DOS, alas, we have to call it. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 602 | if (PyErr_CheckSignals()) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 603 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 604 | goto on_error; |
| 605 | } |
Guido van Rossum | 70d4478 | 1997-01-21 06:15:24 +0000 | [diff] [blame] | 606 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 607 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 608 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 609 | if (interpreter_lock) { |
| 610 | /* Give another thread a chance */ |
| 611 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 612 | PyThreadState *tstate = |
| 613 | PyThreadState_Swap(NULL); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 614 | release_lock(interpreter_lock); |
| 615 | |
| 616 | /* Other threads may run now */ |
| 617 | |
| 618 | acquire_lock(interpreter_lock, 1); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 619 | PyThreadState_Swap(tstate); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 620 | } |
| 621 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 622 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 623 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 624 | /* Extract opcode and argument */ |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 625 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 626 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 627 | f->f_lasti = INSTR_OFFSET(); |
| 628 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 629 | |
| 630 | opcode = NEXTOP(); |
| 631 | if (HAS_ARG(opcode)) |
| 632 | oparg = NEXTARG(); |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 633 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 634 | #ifdef DXPAIRS |
| 635 | dxpairs[lastopcode][opcode]++; |
| 636 | lastopcode = opcode; |
| 637 | #endif |
| 638 | dxp[opcode]++; |
| 639 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 640 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 641 | #ifdef LLTRACE |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 642 | /* Instruction tracing */ |
| 643 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 644 | if (lltrace) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 645 | if (HAS_ARG(opcode)) { |
| 646 | printf("%d: %d, %d\n", |
| 647 | (int) (INSTR_OFFSET() - 3), |
| 648 | opcode, oparg); |
| 649 | } |
| 650 | else { |
| 651 | printf("%d: %d\n", |
| 652 | (int) (INSTR_OFFSET() - 1), opcode); |
| 653 | } |
| 654 | } |
| 655 | #endif |
| 656 | |
| 657 | /* Main switch on opcode */ |
| 658 | |
| 659 | switch (opcode) { |
| 660 | |
| 661 | /* BEWARE! |
| 662 | It is essential that any operation that fails sets either |
| 663 | x to NULL, err to nonzero, or why to anything but WHY_NOT, |
| 664 | and that no operation that succeeds does this! */ |
| 665 | |
| 666 | /* case STOP_CODE: this is an error! */ |
| 667 | |
| 668 | case POP_TOP: |
| 669 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 670 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 671 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 672 | |
| 673 | case ROT_TWO: |
| 674 | v = POP(); |
| 675 | w = POP(); |
| 676 | PUSH(v); |
| 677 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 678 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 679 | |
| 680 | case ROT_THREE: |
| 681 | v = POP(); |
| 682 | w = POP(); |
| 683 | x = POP(); |
| 684 | PUSH(v); |
| 685 | PUSH(x); |
| 686 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 687 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 688 | |
| 689 | case DUP_TOP: |
| 690 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 691 | Py_INCREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 692 | PUSH(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 693 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 694 | |
| 695 | case UNARY_POSITIVE: |
| 696 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 697 | x = PyNumber_Positive(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 698 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 699 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 700 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 701 | break; |
| 702 | |
| 703 | case UNARY_NEGATIVE: |
| 704 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 705 | x = PyNumber_Negative(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 706 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 707 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 708 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 709 | break; |
| 710 | |
| 711 | case UNARY_NOT: |
| 712 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 713 | err = PyObject_IsTrue(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 714 | Py_DECREF(v); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 715 | if (err == 0) { |
| 716 | Py_INCREF(Py_True); |
| 717 | PUSH(Py_True); |
| 718 | continue; |
| 719 | } |
| 720 | else if (err > 0) { |
| 721 | Py_INCREF(Py_False); |
| 722 | PUSH(Py_False); |
| 723 | err = 0; |
| 724 | continue; |
| 725 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 726 | break; |
| 727 | |
| 728 | case UNARY_CONVERT: |
| 729 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 730 | x = PyObject_Repr(v); |
| 731 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 732 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 733 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 734 | break; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 735 | |
| 736 | case UNARY_INVERT: |
| 737 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 738 | x = PyNumber_Invert(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 739 | Py_DECREF(v); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 740 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 741 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 742 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 743 | |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 744 | case BINARY_POWER: |
| 745 | w = POP(); |
| 746 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 747 | x = PyNumber_Power(v, w, Py_None); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 748 | Py_DECREF(v); |
| 749 | Py_DECREF(w); |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 750 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 751 | if (x != NULL) continue; |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 752 | break; |
| 753 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 754 | case BINARY_MULTIPLY: |
| 755 | w = POP(); |
| 756 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 757 | x = PyNumber_Multiply(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 758 | Py_DECREF(v); |
| 759 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 760 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 761 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 762 | break; |
| 763 | |
| 764 | case BINARY_DIVIDE: |
| 765 | w = POP(); |
| 766 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 767 | x = PyNumber_Divide(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 768 | Py_DECREF(v); |
| 769 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 770 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 771 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 772 | break; |
| 773 | |
| 774 | case BINARY_MODULO: |
| 775 | w = POP(); |
| 776 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 777 | x = PyNumber_Remainder(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 778 | Py_DECREF(v); |
| 779 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 780 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 781 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 782 | break; |
| 783 | |
| 784 | case BINARY_ADD: |
| 785 | w = POP(); |
| 786 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 787 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 788 | /* INLINE: int + int */ |
| 789 | register long a, b, i; |
| 790 | a = ((PyIntObject*) v)->ob_ival; |
| 791 | b = ((PyIntObject*) w)->ob_ival; |
| 792 | i = a + b; |
| 793 | if ((i^a) < 0 && (i^b) < 0) { |
| 794 | PyErr_SetString(PyExc_OverflowError, |
| 795 | "integer addition"); |
| 796 | x = NULL; |
| 797 | } |
| 798 | else |
| 799 | x = PyInt_FromLong(i); |
| 800 | } |
| 801 | else |
| 802 | x = PyNumber_Add(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 803 | Py_DECREF(v); |
| 804 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 805 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 806 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 807 | break; |
| 808 | |
| 809 | case BINARY_SUBTRACT: |
| 810 | w = POP(); |
| 811 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 812 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 813 | /* INLINE: int - int */ |
| 814 | register long a, b, i; |
| 815 | a = ((PyIntObject*) v)->ob_ival; |
| 816 | b = ((PyIntObject*) w)->ob_ival; |
| 817 | i = a - b; |
| 818 | if ((i^a) < 0 && (i^~b) < 0) { |
| 819 | PyErr_SetString(PyExc_OverflowError, |
| 820 | "integer subtraction"); |
| 821 | x = NULL; |
| 822 | } |
| 823 | else |
| 824 | x = PyInt_FromLong(i); |
| 825 | } |
| 826 | else |
| 827 | x = PyNumber_Subtract(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 828 | Py_DECREF(v); |
| 829 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 830 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 831 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 832 | break; |
| 833 | |
| 834 | case BINARY_SUBSCR: |
| 835 | w = POP(); |
| 836 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 837 | if (PyList_Check(v) && PyInt_Check(w)) { |
| 838 | /* INLINE: list[int] */ |
| 839 | long i = PyInt_AsLong(w); |
| 840 | if (i < 0) |
| 841 | i += ((PyListObject*) v)->ob_size; |
| 842 | if (i < 0 || |
| 843 | i >= ((PyListObject*) v)->ob_size) { |
| 844 | PyErr_SetString(PyExc_IndexError, |
| 845 | "list index out of range"); |
| 846 | x = NULL; |
| 847 | } |
| 848 | else { |
| 849 | x = ((PyListObject*) v)->ob_item[i]; |
| 850 | Py_INCREF(x); |
| 851 | } |
| 852 | } |
| 853 | else |
| 854 | x = PyObject_GetItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 855 | Py_DECREF(v); |
| 856 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 857 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 858 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 859 | break; |
| 860 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 861 | case BINARY_LSHIFT: |
| 862 | w = POP(); |
| 863 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 864 | x = PyNumber_Lshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 865 | Py_DECREF(v); |
| 866 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 867 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 868 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 869 | break; |
| 870 | |
| 871 | case BINARY_RSHIFT: |
| 872 | w = POP(); |
| 873 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 874 | x = PyNumber_Rshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 875 | Py_DECREF(v); |
| 876 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 877 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 878 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 879 | break; |
| 880 | |
| 881 | case BINARY_AND: |
| 882 | w = POP(); |
| 883 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 884 | x = PyNumber_And(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 885 | Py_DECREF(v); |
| 886 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 887 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 888 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 889 | break; |
| 890 | |
| 891 | case BINARY_XOR: |
| 892 | w = POP(); |
| 893 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 894 | x = PyNumber_Xor(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 895 | Py_DECREF(v); |
| 896 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 897 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 898 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 899 | break; |
| 900 | |
| 901 | case BINARY_OR: |
| 902 | w = POP(); |
| 903 | v = POP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 904 | x = PyNumber_Or(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 905 | Py_DECREF(v); |
| 906 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 907 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 908 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 909 | break; |
| 910 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 911 | case SLICE+0: |
| 912 | case SLICE+1: |
| 913 | case SLICE+2: |
| 914 | case SLICE+3: |
| 915 | if ((opcode-SLICE) & 2) |
| 916 | w = POP(); |
| 917 | else |
| 918 | w = NULL; |
| 919 | if ((opcode-SLICE) & 1) |
| 920 | v = POP(); |
| 921 | else |
| 922 | v = NULL; |
| 923 | u = POP(); |
| 924 | x = apply_slice(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 925 | Py_DECREF(u); |
| 926 | Py_XDECREF(v); |
| 927 | Py_XDECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 928 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 929 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 930 | break; |
| 931 | |
| 932 | case STORE_SLICE+0: |
| 933 | case STORE_SLICE+1: |
| 934 | case STORE_SLICE+2: |
| 935 | case STORE_SLICE+3: |
| 936 | if ((opcode-STORE_SLICE) & 2) |
| 937 | w = POP(); |
| 938 | else |
| 939 | w = NULL; |
| 940 | if ((opcode-STORE_SLICE) & 1) |
| 941 | v = POP(); |
| 942 | else |
| 943 | v = NULL; |
| 944 | u = POP(); |
| 945 | t = POP(); |
| 946 | err = assign_slice(u, v, w, t); /* u[v:w] = t */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 947 | Py_DECREF(t); |
| 948 | Py_DECREF(u); |
| 949 | Py_XDECREF(v); |
| 950 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 951 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 952 | break; |
| 953 | |
| 954 | case DELETE_SLICE+0: |
| 955 | case DELETE_SLICE+1: |
| 956 | case DELETE_SLICE+2: |
| 957 | case DELETE_SLICE+3: |
| 958 | if ((opcode-DELETE_SLICE) & 2) |
| 959 | w = POP(); |
| 960 | else |
| 961 | w = NULL; |
| 962 | if ((opcode-DELETE_SLICE) & 1) |
| 963 | v = POP(); |
| 964 | else |
| 965 | v = NULL; |
| 966 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 967 | err = assign_slice(u, v, w, (PyObject *)NULL); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 968 | /* del u[v:w] */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 969 | Py_DECREF(u); |
| 970 | Py_XDECREF(v); |
| 971 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 972 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 973 | break; |
| 974 | |
| 975 | case STORE_SUBSCR: |
| 976 | w = POP(); |
| 977 | v = POP(); |
| 978 | u = POP(); |
| 979 | /* v[w] = u */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 980 | err = PyObject_SetItem(v, w, u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 981 | Py_DECREF(u); |
| 982 | Py_DECREF(v); |
| 983 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 984 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 985 | break; |
| 986 | |
| 987 | case DELETE_SUBSCR: |
| 988 | w = POP(); |
| 989 | v = POP(); |
| 990 | /* del v[w] */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 991 | err = PyObject_DelItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 992 | Py_DECREF(v); |
| 993 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 994 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 995 | break; |
| 996 | |
| 997 | case PRINT_EXPR: |
| 998 | v = POP(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 999 | /* Print value except if procedure result */ |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 1000 | /* Before printing, also assign to '_' */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1001 | if (v != Py_None && |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1002 | (err = PyDict_SetItemString( |
| 1003 | f->f_builtins, "_", v)) == 0 && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1004 | !Py_SuppressPrintingFlag) { |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 1005 | err = Py_FlushLine(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1006 | if (err == 0) { |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 1007 | x = PySys_GetObject("stdout"); |
| 1008 | if (x == NULL) |
| 1009 | err = -1; |
| 1010 | } |
| 1011 | if (err == 0) |
| 1012 | err = PyFile_WriteObject(v, x, 0); |
| 1013 | if (err == 0) { |
| 1014 | PyFile_SoftSpace(x, 1); |
| 1015 | err = Py_FlushLine(); |
| 1016 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1017 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1018 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1019 | break; |
| 1020 | |
| 1021 | case PRINT_ITEM: |
| 1022 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1023 | w = PySys_GetObject("stdout"); |
| 1024 | if (PyFile_SoftSpace(w, 1)) |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 1025 | err = PyFile_WriteString(" ", w); |
| 1026 | if (err == 0) |
| 1027 | err = PyFile_WriteObject(v, w, Py_PRINT_RAW); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1028 | if (err == 0 && PyString_Check(v)) { |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1029 | /* XXX move into writeobject() ? */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1030 | char *s = PyString_AsString(v); |
| 1031 | int len = PyString_Size(v); |
Guido van Rossum | 7f7f274 | 1995-02-10 17:01:56 +0000 | [diff] [blame] | 1032 | if (len > 0 && |
| 1033 | isspace(Py_CHARMASK(s[len-1])) && |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1034 | s[len-1] != ' ') |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1035 | PyFile_SoftSpace(w, 0); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1036 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1037 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1038 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1039 | break; |
| 1040 | |
| 1041 | case PRINT_NEWLINE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1042 | x = PySys_GetObject("stdout"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1043 | if (x == NULL) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1044 | PyErr_SetString(PyExc_RuntimeError, |
| 1045 | "lost sys.stdout"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1046 | else { |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 1047 | err = PyFile_WriteString("\n", x); |
| 1048 | if (err == 0) |
| 1049 | PyFile_SoftSpace(x, 0); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1050 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1051 | break; |
| 1052 | |
| 1053 | case BREAK_LOOP: |
| 1054 | why = WHY_BREAK; |
| 1055 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1056 | |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1057 | case RAISE_VARARGS: |
| 1058 | u = v = w = NULL; |
| 1059 | switch (oparg) { |
| 1060 | case 3: |
| 1061 | u = POP(); /* traceback */ |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1062 | /* Fallthrough */ |
| 1063 | case 2: |
| 1064 | v = POP(); /* value */ |
| 1065 | /* Fallthrough */ |
| 1066 | case 1: |
| 1067 | w = POP(); /* exc */ |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1068 | why = do_raise(w, v, u); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1069 | break; |
| 1070 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1071 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1072 | "bad RAISE_VARARGS oparg"); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1073 | why = WHY_EXCEPTION; |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1074 | break; |
| 1075 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1076 | break; |
| 1077 | |
| 1078 | case LOAD_LOCALS: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1079 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1080 | PyErr_SetString(PyExc_SystemError, |
| 1081 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1082 | break; |
| 1083 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1084 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1085 | PUSH(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1086 | break; |
| 1087 | |
| 1088 | case RETURN_VALUE: |
| 1089 | retval = POP(); |
| 1090 | why = WHY_RETURN; |
| 1091 | break; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1092 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1093 | case EXEC_STMT: |
| 1094 | w = POP(); |
| 1095 | v = POP(); |
| 1096 | u = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1097 | err = exec_statement(f, u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1098 | Py_DECREF(u); |
| 1099 | Py_DECREF(v); |
| 1100 | Py_DECREF(w); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1101 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1102 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1103 | case POP_BLOCK: |
| 1104 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1105 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1106 | while (STACK_LEVEL() > b->b_level) { |
| 1107 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1108 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1109 | } |
| 1110 | } |
| 1111 | break; |
| 1112 | |
| 1113 | case END_FINALLY: |
| 1114 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1115 | if (PyInt_Check(v)) { |
| 1116 | why = (enum why_code) PyInt_AsLong(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1117 | if (why == WHY_RETURN) |
| 1118 | retval = POP(); |
| 1119 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1120 | else if (PyString_Check(v) || PyClass_Check(v)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1121 | w = POP(); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1122 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1123 | PyErr_Restore(v, w, u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1124 | why = WHY_RERAISE; |
Guido van Rossum | 0db1ef9 | 1995-07-28 23:06:00 +0000 | [diff] [blame] | 1125 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1126 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1127 | else if (v != Py_None) { |
| 1128 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1129 | "'finally' pops bad exception"); |
| 1130 | why = WHY_EXCEPTION; |
| 1131 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1132 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1133 | break; |
| 1134 | |
| 1135 | case BUILD_CLASS: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1136 | u = POP(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1137 | v = POP(); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1138 | w = POP(); |
| 1139 | x = build_class(u, v, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1140 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1141 | Py_DECREF(u); |
| 1142 | Py_DECREF(v); |
| 1143 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1144 | break; |
| 1145 | |
| 1146 | case STORE_NAME: |
| 1147 | w = GETNAMEV(oparg); |
| 1148 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1149 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1150 | PyErr_SetString(PyExc_SystemError, |
| 1151 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1152 | break; |
| 1153 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1154 | err = PyDict_SetItem(x, w, v); |
| 1155 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1156 | break; |
| 1157 | |
| 1158 | case DELETE_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1159 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1160 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1161 | PyErr_SetString(PyExc_SystemError, |
| 1162 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1163 | break; |
| 1164 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1165 | if ((err = PyDict_DelItem(x, w)) != 0) |
| 1166 | PyErr_SetObject(PyExc_NameError, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1167 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1168 | |
| 1169 | #ifdef CASE_TOO_BIG |
| 1170 | default: switch (opcode) { |
| 1171 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1172 | |
| 1173 | case UNPACK_TUPLE: |
| 1174 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1175 | if (!PyTuple_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1176 | PyErr_SetString(PyExc_TypeError, |
| 1177 | "unpack non-tuple"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1178 | why = WHY_EXCEPTION; |
| 1179 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1180 | else if (PyTuple_Size(v) != oparg) { |
| 1181 | PyErr_SetString(PyExc_ValueError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1182 | "unpack tuple of wrong size"); |
| 1183 | why = WHY_EXCEPTION; |
| 1184 | } |
| 1185 | else { |
| 1186 | for (; --oparg >= 0; ) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1187 | w = PyTuple_GET_ITEM(v, oparg); |
| 1188 | Py_INCREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1189 | PUSH(w); |
| 1190 | } |
| 1191 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1192 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1193 | break; |
| 1194 | |
| 1195 | case UNPACK_LIST: |
| 1196 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1197 | if (!PyList_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1198 | PyErr_SetString(PyExc_TypeError, |
| 1199 | "unpack non-list"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1200 | why = WHY_EXCEPTION; |
| 1201 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1202 | else if (PyList_Size(v) != oparg) { |
| 1203 | PyErr_SetString(PyExc_ValueError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1204 | "unpack list of wrong size"); |
| 1205 | why = WHY_EXCEPTION; |
| 1206 | } |
| 1207 | else { |
| 1208 | for (; --oparg >= 0; ) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1209 | w = PyList_GetItem(v, oparg); |
| 1210 | Py_INCREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1211 | PUSH(w); |
| 1212 | } |
| 1213 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1214 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1215 | break; |
| 1216 | |
| 1217 | case STORE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1218 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1219 | v = POP(); |
| 1220 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1221 | err = PyObject_SetAttr(v, w, u); /* v.w = u */ |
| 1222 | Py_DECREF(v); |
| 1223 | Py_DECREF(u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1224 | break; |
| 1225 | |
| 1226 | case DELETE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1227 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1228 | v = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1229 | err = PyObject_SetAttr(v, w, (PyObject *)NULL); |
| 1230 | /* del v.w */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1231 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1232 | break; |
| 1233 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1234 | case STORE_GLOBAL: |
| 1235 | w = GETNAMEV(oparg); |
| 1236 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1237 | err = PyDict_SetItem(f->f_globals, w, v); |
| 1238 | Py_DECREF(v); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1239 | break; |
| 1240 | |
| 1241 | case DELETE_GLOBAL: |
| 1242 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1243 | if ((err = PyDict_DelItem(f->f_globals, w)) != 0) |
| 1244 | PyErr_SetObject(PyExc_NameError, w); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1245 | break; |
| 1246 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1247 | case LOAD_CONST: |
| 1248 | x = GETCONST(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1249 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1250 | PUSH(x); |
| 1251 | break; |
| 1252 | |
| 1253 | case LOAD_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1254 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1255 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1256 | PyErr_SetString(PyExc_SystemError, |
| 1257 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1258 | break; |
| 1259 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1260 | x = PyDict_GetItem(x, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1261 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1262 | PyErr_Clear(); |
| 1263 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1264 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1265 | PyErr_Clear(); |
| 1266 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1267 | if (x == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1268 | PyErr_SetObject( |
| 1269 | PyExc_NameError, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1270 | break; |
| 1271 | } |
| 1272 | } |
| 1273 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1274 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1275 | PUSH(x); |
| 1276 | break; |
| 1277 | |
| 1278 | case LOAD_GLOBAL: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1279 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1280 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1281 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1282 | PyErr_Clear(); |
| 1283 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1284 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1285 | PyErr_SetObject(PyExc_NameError, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1286 | break; |
| 1287 | } |
| 1288 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1289 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1290 | PUSH(x); |
| 1291 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1292 | |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1293 | case LOAD_FAST: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1294 | x = GETLOCAL(oparg); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1295 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1296 | PyErr_SetObject(PyExc_NameError, |
| 1297 | PyTuple_GetItem(co->co_varnames, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1298 | oparg)); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1299 | break; |
| 1300 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1301 | Py_INCREF(x); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1302 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1303 | if (x != NULL) continue; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1304 | break; |
| 1305 | |
| 1306 | case STORE_FAST: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1307 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1308 | SETLOCAL(oparg, v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1309 | continue; |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1310 | |
| 1311 | case DELETE_FAST: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1312 | SETLOCAL(oparg, NULL); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1313 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1314 | |
| 1315 | case BUILD_TUPLE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1316 | x = PyTuple_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1317 | if (x != NULL) { |
| 1318 | for (; --oparg >= 0;) { |
| 1319 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1320 | PyTuple_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1321 | } |
| 1322 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1323 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1324 | } |
| 1325 | break; |
| 1326 | |
| 1327 | case BUILD_LIST: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1328 | x = PyList_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1329 | if (x != NULL) { |
| 1330 | for (; --oparg >= 0;) { |
| 1331 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1332 | err = PyList_SetItem(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1333 | if (err != 0) |
| 1334 | break; |
| 1335 | } |
| 1336 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1337 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1338 | } |
| 1339 | break; |
| 1340 | |
| 1341 | case BUILD_MAP: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1342 | x = PyDict_New(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1343 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1344 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1345 | break; |
| 1346 | |
| 1347 | case LOAD_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1348 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1349 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1350 | x = PyObject_GetAttr(v, w); |
| 1351 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1352 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1353 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1354 | break; |
| 1355 | |
| 1356 | case COMPARE_OP: |
| 1357 | w = POP(); |
| 1358 | v = POP(); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1359 | if (PyInt_Check(v) && PyInt_Check(w)) { |
| 1360 | /* INLINE: cmp(int, int) */ |
| 1361 | register long a, b; |
| 1362 | register int res; |
| 1363 | a = ((PyIntObject*) v)->ob_ival; |
| 1364 | b = ((PyIntObject*) w)->ob_ival; |
| 1365 | switch (oparg) { |
| 1366 | case LT: res = a < b; break; |
| 1367 | case LE: res = a <= b; break; |
| 1368 | case EQ: res = a == b; break; |
| 1369 | case NE: res = a != b; break; |
| 1370 | case GT: res = a > b; break; |
| 1371 | case GE: res = a >= b; break; |
| 1372 | case IS: res = v == w; break; |
| 1373 | case IS_NOT: res = v != w; break; |
| 1374 | default: goto slow_compare; |
| 1375 | } |
| 1376 | x = res ? Py_True : Py_False; |
| 1377 | Py_INCREF(x); |
| 1378 | } |
| 1379 | else { |
| 1380 | slow_compare: |
| 1381 | x = cmp_outcome(oparg, v, w); |
| 1382 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1383 | Py_DECREF(v); |
| 1384 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1385 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1386 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1387 | break; |
| 1388 | |
| 1389 | case IMPORT_NAME: |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1390 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1391 | x = PyDict_GetItemString(f->f_builtins, "__import__"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1392 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1393 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1394 | "__import__ not found"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1395 | break; |
| 1396 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1397 | if (PyCFunction_Check(x)) { |
| 1398 | u = Py_None; |
| 1399 | Py_INCREF(u); |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 1400 | } |
| 1401 | else { |
| 1402 | u = find_from_args(f, INSTR_OFFSET()); |
| 1403 | if (u == NULL) { |
| 1404 | x = u; |
| 1405 | break; |
| 1406 | } |
| 1407 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1408 | w = Py_BuildValue("(OOOO)", |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1409 | w, |
| 1410 | f->f_globals, |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1411 | f->f_locals == NULL ? |
| 1412 | Py_None : f->f_locals, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1413 | u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1414 | Py_DECREF(u); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1415 | if (w == NULL) { |
| 1416 | x = NULL; |
| 1417 | break; |
| 1418 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1419 | x = PyEval_CallObject(x, w); |
| 1420 | Py_DECREF(w); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1421 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1422 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1423 | break; |
| 1424 | |
| 1425 | case IMPORT_FROM: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1426 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1427 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1428 | PyFrame_FastToLocals(f); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1429 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1430 | PyErr_SetString(PyExc_SystemError, |
| 1431 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1432 | break; |
| 1433 | } |
| 1434 | err = import_from(x, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1435 | PyFrame_LocalsToFast(f, 0); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1436 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1437 | break; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1438 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1439 | case JUMP_FORWARD: |
| 1440 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1441 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1442 | |
| 1443 | case JUMP_IF_FALSE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1444 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1445 | if (err > 0) |
| 1446 | err = 0; |
| 1447 | else if (err == 0) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1448 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1449 | else |
| 1450 | break; |
| 1451 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1452 | |
| 1453 | case JUMP_IF_TRUE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1454 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1455 | if (err > 0) { |
| 1456 | err = 0; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1457 | JUMPBY(oparg); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1458 | } |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1459 | else if (err == 0) |
| 1460 | ; |
| 1461 | else |
| 1462 | break; |
| 1463 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1464 | |
| 1465 | case JUMP_ABSOLUTE: |
| 1466 | JUMPTO(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1467 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1468 | |
| 1469 | case FOR_LOOP: |
| 1470 | /* for v in s: ... |
| 1471 | On entry: stack contains s, i. |
| 1472 | On exit: stack contains s, i+1, s[i]; |
| 1473 | but if loop exhausted: |
| 1474 | s, i are popped, and we jump */ |
| 1475 | w = POP(); /* Loop index */ |
| 1476 | v = POP(); /* Sequence object */ |
| 1477 | u = loop_subscript(v, w); |
| 1478 | if (u != NULL) { |
| 1479 | PUSH(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1480 | x = PyInt_FromLong(PyInt_AsLong(w)+1); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1481 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1482 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1483 | PUSH(u); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1484 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1485 | } |
| 1486 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1487 | Py_DECREF(v); |
| 1488 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1489 | /* A NULL can mean "s exhausted" |
| 1490 | but also an error: */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1491 | if (PyErr_Occurred()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1492 | why = WHY_EXCEPTION; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1493 | else { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1494 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1495 | continue; |
| 1496 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1497 | } |
| 1498 | break; |
| 1499 | |
| 1500 | case SETUP_LOOP: |
| 1501 | case SETUP_EXCEPT: |
| 1502 | case SETUP_FINALLY: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1503 | PyFrame_BlockSetup(f, opcode, INSTR_OFFSET() + oparg, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1504 | STACK_LEVEL()); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1505 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1506 | |
| 1507 | case SET_LINENO: |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1508 | #ifdef LLTRACE |
| 1509 | if (lltrace) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1510 | printf("--- %s:%d \n", filename, oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1511 | #endif |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1512 | f->f_lineno = oparg; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1513 | if (f->f_trace == NULL) |
| 1514 | continue; |
| 1515 | /* Trace each line of code reached */ |
| 1516 | f->f_lasti = INSTR_OFFSET(); |
| 1517 | err = call_trace(&f->f_trace, &f->f_trace, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1518 | f, "line", Py_None); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1519 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1520 | |
| 1521 | case CALL_FUNCTION: |
| 1522 | { |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1523 | int na = oparg & 0xff; |
| 1524 | int nk = (oparg>>8) & 0xff; |
| 1525 | int n = na + 2*nk; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1526 | PyObject **pfunc = stack_pointer - n - 1; |
| 1527 | PyObject *func = *pfunc; |
| 1528 | PyObject *self = NULL; |
| 1529 | PyObject *class = NULL; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1530 | f->f_lasti = INSTR_OFFSET() - 3; /* For tracing */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1531 | if (PyMethod_Check(func)) { |
| 1532 | self = PyMethod_Self(func); |
| 1533 | class = PyMethod_Class(func); |
| 1534 | func = PyMethod_Function(func); |
| 1535 | Py_INCREF(func); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1536 | if (self != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1537 | Py_INCREF(self); |
| 1538 | Py_DECREF(*pfunc); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1539 | *pfunc = self; |
| 1540 | na++; |
| 1541 | n++; |
| 1542 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1543 | else { |
| 1544 | /* Unbound methods must be |
| 1545 | called with an instance of |
| 1546 | the class (or a derived |
| 1547 | class) as first argument */ |
| 1548 | if (na > 0 && |
| 1549 | (self = stack_pointer[-n]) |
| 1550 | != NULL && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1551 | PyInstance_Check(self) && |
| 1552 | PyClass_IsSubclass( |
| 1553 | (PyObject *) |
| 1554 | (((PyInstanceObject *)self) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1555 | ->in_class), |
| 1556 | class)) |
| 1557 | /* Handy-dandy */ ; |
| 1558 | else { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1559 | PyErr_SetString( |
| 1560 | PyExc_TypeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1561 | "unbound method must be called with class instance 1st argument"); |
Guido van Rossum | 72b56e8 | 1995-12-10 04:57:42 +0000 | [diff] [blame] | 1562 | x = NULL; |
| 1563 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1564 | } |
| 1565 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1566 | } |
| 1567 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1568 | Py_INCREF(func); |
| 1569 | if (PyFunction_Check(func)) { |
| 1570 | PyObject *co = PyFunction_GetCode(func); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1571 | PyObject *globals = |
| 1572 | PyFunction_GetGlobals(func); |
| 1573 | PyObject *argdefs = |
| 1574 | PyFunction_GetDefaults(func); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1575 | PyObject **d; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1576 | int nd; |
| 1577 | if (argdefs != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1578 | d = &PyTuple_GET_ITEM(argdefs, 0); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1579 | nd = ((PyTupleObject *)argdefs) -> |
| 1580 | ob_size; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1581 | } |
| 1582 | else { |
| 1583 | d = NULL; |
| 1584 | nd = 0; |
| 1585 | } |
| 1586 | x = eval_code2( |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1587 | (PyCodeObject *)co, |
| 1588 | globals, (PyObject *)NULL, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1589 | stack_pointer-n, na, |
| 1590 | stack_pointer-2*nk, nk, |
| 1591 | d, nd, |
| 1592 | class); |
| 1593 | } |
| 1594 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1595 | PyObject *args = PyTuple_New(na); |
| 1596 | PyObject *kwdict = NULL; |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1597 | if (args == NULL) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1598 | x = NULL; |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1599 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1600 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1601 | if (nk > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1602 | kwdict = PyDict_New(); |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1603 | if (kwdict == NULL) { |
| 1604 | x = NULL; |
| 1605 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1606 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1607 | err = 0; |
| 1608 | while (--nk >= 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1609 | PyObject *value = POP(); |
| 1610 | PyObject *key = POP(); |
| 1611 | err = PyDict_SetItem( |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1612 | kwdict, key, value); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1613 | Py_DECREF(key); |
| 1614 | Py_DECREF(value); |
Guido van Rossum | d0eb429 | 1997-01-27 21:30:09 +0000 | [diff] [blame] | 1615 | if (err) |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1616 | break; |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1617 | } |
| 1618 | if (err) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1619 | Py_DECREF(args); |
| 1620 | Py_DECREF(kwdict); |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1621 | break; |
| 1622 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1623 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1624 | while (--na >= 0) { |
| 1625 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1626 | PyTuple_SET_ITEM(args, na, w); |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1627 | } |
| 1628 | x = PyEval_CallObjectWithKeywords( |
| 1629 | func, args, kwdict); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1630 | Py_DECREF(args); |
| 1631 | Py_XDECREF(kwdict); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1632 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1633 | Py_DECREF(func); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1634 | while (stack_pointer > pfunc) { |
| 1635 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1636 | Py_DECREF(w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1637 | } |
| 1638 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1639 | if (x != NULL) continue; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1640 | break; |
| 1641 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1642 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1643 | case MAKE_FUNCTION: |
| 1644 | v = POP(); /* code object */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1645 | x = PyFunction_New(v, f->f_globals); |
| 1646 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1647 | /* XXX Maybe this should be a separate opcode? */ |
| 1648 | if (x != NULL && oparg > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1649 | v = PyTuple_New(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1650 | if (v == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1651 | Py_DECREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1652 | x = NULL; |
| 1653 | break; |
| 1654 | } |
| 1655 | while (--oparg >= 0) { |
| 1656 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1657 | PyTuple_SET_ITEM(v, oparg, w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1658 | } |
| 1659 | err = PyFunction_SetDefaults(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1660 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1661 | } |
| 1662 | PUSH(x); |
| 1663 | break; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1664 | |
| 1665 | case BUILD_SLICE: |
| 1666 | if (oparg == 3) |
| 1667 | w = POP(); |
| 1668 | else |
| 1669 | w = NULL; |
| 1670 | v = POP(); |
| 1671 | u = POP(); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 1672 | x = PySlice_New(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1673 | Py_DECREF(u); |
| 1674 | Py_DECREF(v); |
| 1675 | Py_XDECREF(w); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1676 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1677 | if (x != NULL) continue; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1678 | break; |
| 1679 | |
| 1680 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1681 | default: |
| 1682 | fprintf(stderr, |
| 1683 | "XXX lineno: %d, opcode: %d\n", |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1684 | f->f_lineno, opcode); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1685 | PyErr_SetString(PyExc_SystemError, "unknown opcode"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1686 | why = WHY_EXCEPTION; |
| 1687 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1688 | |
| 1689 | #ifdef CASE_TOO_BIG |
| 1690 | } |
| 1691 | #endif |
| 1692 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1693 | } /* switch */ |
| 1694 | |
| 1695 | on_error: |
| 1696 | |
| 1697 | /* Quickly continue if no error occurred */ |
| 1698 | |
| 1699 | if (why == WHY_NOT) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1700 | if (err == 0 && x != NULL) { |
| 1701 | #ifdef CHECKEXC |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1702 | if (PyErr_Occurred()) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1703 | fprintf(stderr, |
| 1704 | "XXX undetected error\n"); |
| 1705 | else |
| 1706 | #endif |
| 1707 | continue; /* Normal, fast path */ |
| 1708 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1709 | why = WHY_EXCEPTION; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1710 | x = Py_None; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1711 | err = 0; |
| 1712 | } |
| 1713 | |
Guido van Rossum | 801dcae | 1992-04-08 11:32:32 +0000 | [diff] [blame] | 1714 | #ifdef CHECKEXC |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1715 | /* Double-check exception status */ |
| 1716 | |
| 1717 | if (why == WHY_EXCEPTION || why == WHY_RERAISE) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1718 | if (!PyErr_Occurred()) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1719 | fprintf(stderr, "XXX ghost error\n"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1720 | PyErr_SetString(PyExc_SystemError, |
| 1721 | "ghost error"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1722 | why = WHY_EXCEPTION; |
| 1723 | } |
| 1724 | } |
| 1725 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1726 | if (PyErr_Occurred()) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1727 | fprintf(stderr, |
| 1728 | "XXX undetected error (why=%d)\n", |
| 1729 | why); |
| 1730 | why = WHY_EXCEPTION; |
| 1731 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1732 | } |
| 1733 | #endif |
| 1734 | |
| 1735 | /* Log traceback info if this is a real exception */ |
| 1736 | |
| 1737 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1738 | f->f_lasti = INSTR_OFFSET() - 1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1739 | if (HAS_ARG(opcode)) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1740 | f->f_lasti -= 2; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1741 | PyTraceBack_Here(f); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1742 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 1743 | if (f->f_trace) |
| 1744 | call_exc_trace(&f->f_trace, &f->f_trace, f); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1745 | if (tstate->sys_profilefunc) |
| 1746 | call_exc_trace(&tstate->sys_profilefunc, |
| 1747 | (PyObject**)0, f); |
| 1748 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1749 | |
| 1750 | /* For the rest, treat WHY_RERAISE as WHY_EXCEPTION */ |
| 1751 | |
| 1752 | if (why == WHY_RERAISE) |
| 1753 | why = WHY_EXCEPTION; |
| 1754 | |
| 1755 | /* Unwind stacks if a (pseudo) exception occurred */ |
| 1756 | |
| 1757 | while (why != WHY_NOT && f->f_iblock > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1758 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1759 | while (STACK_LEVEL() > b->b_level) { |
| 1760 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1761 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1762 | } |
| 1763 | if (b->b_type == SETUP_LOOP && why == WHY_BREAK) { |
| 1764 | why = WHY_NOT; |
| 1765 | JUMPTO(b->b_handler); |
| 1766 | break; |
| 1767 | } |
| 1768 | if (b->b_type == SETUP_FINALLY || |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 1769 | (b->b_type == SETUP_EXCEPT && |
| 1770 | why == WHY_EXCEPTION)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1771 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1772 | PyObject *exc, *val, *tb; |
| 1773 | PyErr_Fetch(&exc, &val, &tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1774 | if (val == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1775 | val = Py_None; |
| 1776 | Py_INCREF(val); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1777 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1778 | /* Make the raw exception data |
| 1779 | available to the handler, |
| 1780 | so a program can emulate the |
| 1781 | Python main loop. Don't do |
| 1782 | this for 'finally'. */ |
| 1783 | if (b->b_type == SETUP_EXCEPT) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1784 | set_exc_info(tstate, |
| 1785 | exc, val, tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1786 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1787 | PUSH(tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1788 | PUSH(val); |
| 1789 | PUSH(exc); |
| 1790 | } |
| 1791 | else { |
| 1792 | if (why == WHY_RETURN) |
| 1793 | PUSH(retval); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1794 | v = PyInt_FromLong((long)why); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1795 | PUSH(v); |
| 1796 | } |
| 1797 | why = WHY_NOT; |
| 1798 | JUMPTO(b->b_handler); |
| 1799 | break; |
| 1800 | } |
| 1801 | } /* unwind stack */ |
| 1802 | |
| 1803 | /* End the loop if we still have an error (or return) */ |
| 1804 | |
| 1805 | if (why != WHY_NOT) |
| 1806 | break; |
| 1807 | |
| 1808 | } /* main loop */ |
| 1809 | |
| 1810 | /* Pop remaining stack entries */ |
| 1811 | |
| 1812 | while (!EMPTY()) { |
| 1813 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1814 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1815 | } |
| 1816 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1817 | if (why != WHY_RETURN) |
| 1818 | retval = NULL; |
| 1819 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 1820 | if (f->f_trace) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1821 | if (why == WHY_RETURN) { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 1822 | if (call_trace(&f->f_trace, &f->f_trace, f, |
| 1823 | "return", retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1824 | Py_XDECREF(retval); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1825 | retval = NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1826 | why = WHY_EXCEPTION; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1827 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1828 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1829 | } |
| 1830 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1831 | if (tstate->sys_profilefunc && why == WHY_RETURN) { |
| 1832 | if (call_trace(&tstate->sys_profilefunc, (PyObject**)0, |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1833 | f, "return", retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1834 | Py_XDECREF(retval); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1835 | retval = NULL; |
| 1836 | why = WHY_EXCEPTION; |
| 1837 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1838 | } |
Guido van Rossum | a424013 | 1997-01-21 21:18:36 +0000 | [diff] [blame] | 1839 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1840 | reset_exc_info(tstate); |
| 1841 | |
| 1842 | --tstate->recursion_depth; |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 1843 | |
| 1844 | fail: /* Jump here from prelude on failure */ |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1845 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1846 | /* Restore previous frame and release the current one */ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1847 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1848 | tstate->frame = f->f_back; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1849 | Py_DECREF(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1850 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1851 | return retval; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1852 | } |
| 1853 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1854 | static void |
| 1855 | set_exc_info(tstate, type, value, tb) |
| 1856 | PyThreadState *tstate; |
| 1857 | PyObject *type; |
| 1858 | PyObject *value; |
| 1859 | PyObject *tb; |
| 1860 | { |
| 1861 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1862 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1863 | frame = tstate->frame; |
| 1864 | if (frame->f_exc_type == NULL) { |
| 1865 | /* This frame didn't catch an exception before */ |
| 1866 | /* Save previous exception of this thread in this frame */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1867 | if (tstate->exc_type == NULL) { |
| 1868 | Py_INCREF(Py_None); |
| 1869 | tstate->exc_type = Py_None; |
| 1870 | } |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1871 | tmp_type = frame->f_exc_type; |
| 1872 | tmp_value = frame->f_exc_value; |
| 1873 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1874 | Py_XINCREF(tstate->exc_type); |
| 1875 | Py_XINCREF(tstate->exc_value); |
| 1876 | Py_XINCREF(tstate->exc_traceback); |
| 1877 | frame->f_exc_type = tstate->exc_type; |
| 1878 | frame->f_exc_value = tstate->exc_value; |
| 1879 | frame->f_exc_traceback = tstate->exc_traceback; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1880 | Py_XDECREF(tmp_type); |
| 1881 | Py_XDECREF(tmp_value); |
| 1882 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1883 | } |
| 1884 | /* Set new exception for this thread */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1885 | tmp_type = tstate->exc_type; |
| 1886 | tmp_value = tstate->exc_value; |
| 1887 | tmp_tb = tstate->exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1888 | Py_XINCREF(type); |
| 1889 | Py_XINCREF(value); |
| 1890 | Py_XINCREF(tb); |
| 1891 | tstate->exc_type = type; |
| 1892 | tstate->exc_value = value; |
| 1893 | tstate->exc_traceback = tb; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1894 | Py_XDECREF(tmp_type); |
| 1895 | Py_XDECREF(tmp_value); |
| 1896 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1897 | /* For b/w compatibility */ |
| 1898 | PySys_SetObject("exc_type", type); |
| 1899 | PySys_SetObject("exc_value", value); |
| 1900 | PySys_SetObject("exc_traceback", tb); |
| 1901 | } |
| 1902 | |
| 1903 | static void |
| 1904 | reset_exc_info(tstate) |
| 1905 | PyThreadState *tstate; |
| 1906 | { |
| 1907 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1908 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1909 | frame = tstate->frame; |
| 1910 | if (frame->f_exc_type != NULL) { |
| 1911 | /* This frame caught an exception */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1912 | tmp_type = tstate->exc_type; |
| 1913 | tmp_value = tstate->exc_value; |
| 1914 | tmp_tb = tstate->exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1915 | Py_XINCREF(frame->f_exc_type); |
| 1916 | Py_XINCREF(frame->f_exc_value); |
| 1917 | Py_XINCREF(frame->f_exc_traceback); |
| 1918 | tstate->exc_type = frame->f_exc_type; |
| 1919 | tstate->exc_value = frame->f_exc_value; |
| 1920 | tstate->exc_traceback = frame->f_exc_traceback; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1921 | Py_XDECREF(tmp_type); |
| 1922 | Py_XDECREF(tmp_value); |
| 1923 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1924 | /* For b/w compatibility */ |
| 1925 | PySys_SetObject("exc_type", frame->f_exc_type); |
| 1926 | PySys_SetObject("exc_value", frame->f_exc_value); |
| 1927 | PySys_SetObject("exc_traceback", frame->f_exc_traceback); |
| 1928 | } |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1929 | tmp_type = frame->f_exc_type; |
| 1930 | tmp_value = frame->f_exc_value; |
| 1931 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1932 | frame->f_exc_type = NULL; |
| 1933 | frame->f_exc_value = NULL; |
| 1934 | frame->f_exc_traceback = NULL; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 1935 | Py_XDECREF(tmp_type); |
| 1936 | Py_XDECREF(tmp_value); |
| 1937 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1938 | } |
| 1939 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1940 | /* Logic for the raise statement (too complicated for inlining). |
| 1941 | This *consumes* a reference count to each of its arguments. */ |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 1942 | static enum why_code |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1943 | do_raise(type, value, tb) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1944 | PyObject *type, *value, *tb; |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1945 | { |
| 1946 | /* We support the following forms of raise: |
| 1947 | raise <class>, <classinstance> |
| 1948 | raise <class>, <argument tuple> |
| 1949 | raise <class>, None |
| 1950 | raise <class>, <argument> |
| 1951 | raise <classinstance>, None |
| 1952 | raise <string>, <object> |
| 1953 | raise <string>, None |
| 1954 | |
| 1955 | An omitted second argument is the same as None. |
| 1956 | |
| 1957 | In addition, raise <tuple>, <anything> is the same as |
| 1958 | raising the tuple's first item (and it better have one!); |
| 1959 | this rule is applied recursively. |
| 1960 | |
| 1961 | Finally, an optional third argument can be supplied, which |
| 1962 | gives the traceback to be substituted (useful when |
| 1963 | re-raising an exception after examining it). */ |
| 1964 | |
| 1965 | /* First, check the traceback argument, replacing None with |
| 1966 | NULL. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1967 | if (tb == Py_None) { |
| 1968 | Py_DECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1969 | tb = NULL; |
| 1970 | } |
| 1971 | else if (tb != NULL && !PyTraceBack_Check(tb)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1972 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1973 | "raise 3rd arg must be traceback or None"); |
| 1974 | goto raise_error; |
| 1975 | } |
| 1976 | |
| 1977 | /* Next, replace a missing value with None */ |
| 1978 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1979 | value = Py_None; |
| 1980 | Py_INCREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1981 | } |
| 1982 | |
| 1983 | /* Next, repeatedly, replace a tuple exception with its first item */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1984 | while (PyTuple_Check(type) && PyTuple_Size(type) > 0) { |
| 1985 | PyObject *tmp = type; |
| 1986 | type = PyTuple_GET_ITEM(type, 0); |
| 1987 | Py_INCREF(type); |
| 1988 | Py_DECREF(tmp); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1989 | } |
| 1990 | |
| 1991 | /* Now switch on the exception's type */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1992 | if (PyString_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1993 | ; |
| 1994 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1995 | else if (PyClass_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1996 | /* Raising a class. If the value is an instance, it |
| 1997 | better be an instance of the class. If it is not, |
| 1998 | it will be used to create an instance. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1999 | if (PyInstance_Check(value)) { |
| 2000 | PyObject *inclass = (PyObject*) |
| 2001 | (((PyInstanceObject*)value)->in_class); |
| 2002 | if (!PyClass_IsSubclass(inclass, type)) { |
| 2003 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2004 | "raise <class>, <instance> requires that <instance> is a member of <class>"); |
| 2005 | goto raise_error; |
| 2006 | } |
| 2007 | } |
| 2008 | else { |
| 2009 | /* Go instantiate the class */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2010 | PyObject *args, *res; |
| 2011 | if (value == Py_None) |
| 2012 | args = Py_BuildValue("()"); |
| 2013 | else if (PyTuple_Check(value)) { |
| 2014 | Py_INCREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2015 | args = value; |
| 2016 | } |
| 2017 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2018 | args = Py_BuildValue("(O)", value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2019 | if (args == NULL) |
| 2020 | goto raise_error; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2021 | res = PyEval_CallObject(type, args); |
| 2022 | Py_DECREF(args); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2023 | if (res == NULL) |
| 2024 | goto raise_error; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2025 | Py_DECREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2026 | value = res; |
| 2027 | } |
| 2028 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2029 | else if (PyInstance_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2030 | /* Raising an instance. The value should be a dummy. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2031 | if (value != Py_None) { |
| 2032 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2033 | "instance exception may not have a separate value"); |
| 2034 | goto raise_error; |
| 2035 | } |
| 2036 | else { |
| 2037 | /* Normalize to raise <class>, <instance> */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2038 | Py_DECREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2039 | value = type; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2040 | type = (PyObject*) ((PyInstanceObject*)type)->in_class; |
| 2041 | Py_INCREF(type); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2042 | } |
| 2043 | } |
| 2044 | else { |
| 2045 | /* Not something you can raise. You get an exception |
| 2046 | anyway, just not what you specified :-) */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2047 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2048 | "exceptions must be strings, classes, or instances"); |
| 2049 | goto raise_error; |
| 2050 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2051 | PyErr_Restore(type, value, tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2052 | if (tb == NULL) |
| 2053 | return WHY_EXCEPTION; |
| 2054 | else |
| 2055 | return WHY_RERAISE; |
| 2056 | raise_error: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2057 | Py_XDECREF(value); |
| 2058 | Py_XDECREF(type); |
| 2059 | Py_XDECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2060 | return WHY_EXCEPTION; |
| 2061 | } |
| 2062 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2063 | #ifdef LLTRACE |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2064 | static int |
| 2065 | prtrace(v, str) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2066 | PyObject *v; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2067 | char *str; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2068 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2069 | printf("%s ", str); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2070 | if (PyObject_Print(v, stdout, 0) != 0) |
| 2071 | PyErr_Clear(); /* Don't know what else to do */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2072 | printf("\n"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2073 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2074 | #endif |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2075 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2076 | static void |
| 2077 | call_exc_trace(p_trace, p_newtrace, f) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2078 | PyObject **p_trace, **p_newtrace; |
| 2079 | PyFrameObject *f; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2080 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2081 | PyObject *type, *value, *traceback, *arg; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2082 | int err; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2083 | PyErr_Fetch(&type, &value, &traceback); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 2084 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2085 | value = Py_None; |
| 2086 | Py_INCREF(value); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 2087 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2088 | arg = Py_BuildValue("(OOO)", type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2089 | if (arg == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2090 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2091 | return; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2092 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2093 | err = call_trace(p_trace, p_newtrace, f, "exception", arg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2094 | Py_DECREF(arg); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2095 | if (err == 0) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2096 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2097 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2098 | Py_XDECREF(type); |
| 2099 | Py_XDECREF(value); |
| 2100 | Py_XDECREF(traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2101 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2102 | } |
| 2103 | |
| 2104 | static int |
| 2105 | call_trace(p_trace, p_newtrace, f, msg, arg) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2106 | PyObject **p_trace; /* in/out; may not be NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2107 | may not point to NULL variable initially */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2108 | PyObject **p_newtrace; /* in/out; may be NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2109 | may point to NULL variable; |
| 2110 | may be same variable as p_newtrace */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2111 | PyFrameObject *f; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2112 | char *msg; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2113 | PyObject *arg; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2114 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2115 | PyThreadState *tstate = f->f_tstate; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2116 | PyObject *args, *what; |
| 2117 | PyObject *res = NULL; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2118 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2119 | if (tstate->tracing) { |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2120 | /* Don't do recursive traces */ |
| 2121 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2122 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2123 | *p_newtrace = NULL; |
| 2124 | } |
| 2125 | return 0; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2126 | } |
| 2127 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2128 | args = PyTuple_New(3); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2129 | if (args == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2130 | goto Py_Cleanup; |
| 2131 | what = PyString_FromString(msg); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2132 | if (what == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2133 | goto Py_Cleanup; |
| 2134 | Py_INCREF(f); |
| 2135 | PyTuple_SET_ITEM(args, 0, (PyObject *)f); |
| 2136 | PyTuple_SET_ITEM(args, 1, what); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2137 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2138 | arg = Py_None; |
| 2139 | Py_INCREF(arg); |
| 2140 | PyTuple_SET_ITEM(args, 2, arg); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2141 | tstate->tracing++; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2142 | PyFrame_FastToLocals(f); |
| 2143 | res = PyEval_CallObject(*p_trace, args); /* May clear *p_trace! */ |
| 2144 | PyFrame_LocalsToFast(f, 1); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2145 | tstate->tracing--; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2146 | Py_Cleanup: |
| 2147 | Py_XDECREF(args); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2148 | if (res == NULL) { |
| 2149 | /* The trace proc raised an exception */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2150 | PyTraceBack_Here(f); |
| 2151 | Py_XDECREF(*p_trace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2152 | *p_trace = NULL; |
| 2153 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2154 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2155 | *p_newtrace = NULL; |
| 2156 | } |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2157 | return -1; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2158 | } |
| 2159 | else { |
| 2160 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2161 | Py_XDECREF(*p_newtrace); |
| 2162 | if (res == Py_None) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2163 | *p_newtrace = NULL; |
| 2164 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2165 | Py_INCREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2166 | *p_newtrace = res; |
| 2167 | } |
| 2168 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2169 | Py_DECREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2170 | return 0; |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2171 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2172 | } |
| 2173 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2174 | PyObject * |
| 2175 | PyEval_GetBuiltins() |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2176 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2177 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2178 | if (current_frame == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2179 | return PyBuiltin_GetModule(); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2180 | else |
| 2181 | return current_frame->f_builtins; |
| 2182 | } |
| 2183 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2184 | PyObject * |
| 2185 | PyEval_GetLocals() |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2186 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2187 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2188 | if (current_frame == NULL) |
| 2189 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2190 | PyFrame_FastToLocals(current_frame); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2191 | return current_frame->f_locals; |
| 2192 | } |
| 2193 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2194 | PyObject * |
| 2195 | PyEval_GetGlobals() |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2196 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2197 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2198 | if (current_frame == NULL) |
| 2199 | return NULL; |
| 2200 | else |
| 2201 | return current_frame->f_globals; |
| 2202 | } |
| 2203 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2204 | PyObject * |
| 2205 | PyEval_GetFrame() |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2206 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2207 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2208 | return (PyObject *)current_frame; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2209 | } |
| 2210 | |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2211 | int |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2212 | PyEval_GetRestricted() |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2213 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2214 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2215 | return current_frame == NULL ? 0 : current_frame->f_restricted; |
| 2216 | } |
| 2217 | |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 2218 | int |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2219 | Py_FlushLine() |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2220 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2221 | PyObject *f = PySys_GetObject("stdout"); |
Guido van Rossum | be27026 | 1997-05-22 22:26:18 +0000 | [diff] [blame] | 2222 | if (f == NULL) |
| 2223 | return 0; |
| 2224 | if (!PyFile_SoftSpace(f, 0)) |
| 2225 | return 0; |
| 2226 | return PyFile_WriteString("\n", f); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2227 | } |
| 2228 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2229 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2230 | /* External interface to call any callable object. |
| 2231 | The arg must be a tuple or NULL. */ |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2232 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2233 | PyObject * |
| 2234 | PyEval_CallObject(func, arg) |
| 2235 | PyObject *func; |
| 2236 | PyObject *arg; |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2237 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2238 | return PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2239 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2240 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2241 | PyObject * |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2242 | PyEval_CallObjectWithKeywords(func, arg, kw) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2243 | PyObject *func; |
| 2244 | PyObject *arg; |
| 2245 | PyObject *kw; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2246 | { |
| 2247 | ternaryfunc call; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2248 | PyObject *result; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2249 | |
| 2250 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2251 | arg = PyTuple_New(0); |
| 2252 | else if (!PyTuple_Check(arg)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2253 | PyErr_SetString(PyExc_TypeError, |
| 2254 | "argument list must be a tuple"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2255 | return NULL; |
| 2256 | } |
| 2257 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2258 | Py_INCREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2259 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2260 | if (kw != NULL && !PyDict_Check(kw)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2261 | PyErr_SetString(PyExc_TypeError, |
| 2262 | "keyword list must be a dictionary"); |
Guido van Rossum | e3e61c1 | 1995-08-04 04:14:47 +0000 | [diff] [blame] | 2263 | return NULL; |
| 2264 | } |
| 2265 | |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2266 | if ((call = func->ob_type->tp_call) != NULL) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2267 | result = (*call)(func, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2268 | else if (PyMethod_Check(func) || PyFunction_Check(func)) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2269 | result = call_function(func, arg, kw); |
| 2270 | else |
| 2271 | result = call_builtin(func, arg, kw); |
| 2272 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2273 | Py_DECREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2274 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2275 | if (result == NULL && !PyErr_Occurred()) |
| 2276 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2277 | "NULL result without error in call_object"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2278 | |
| 2279 | return result; |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2280 | } |
| 2281 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2282 | static PyObject * |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2283 | call_builtin(func, arg, kw) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2284 | PyObject *func; |
| 2285 | PyObject *arg; |
| 2286 | PyObject *kw; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2287 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2288 | if (PyCFunction_Check(func)) { |
| 2289 | PyCFunction meth = PyCFunction_GetFunction(func); |
| 2290 | PyObject *self = PyCFunction_GetSelf(func); |
| 2291 | int flags = PyCFunction_GetFlags(func); |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 2292 | if (!(flags & METH_VARARGS)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2293 | int size = PyTuple_Size(arg); |
Guido van Rossum | 9c7b861 | 1991-12-16 13:04:47 +0000 | [diff] [blame] | 2294 | if (size == 1) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2295 | arg = PyTuple_GET_ITEM(arg, 0); |
Guido van Rossum | 9c7b861 | 1991-12-16 13:04:47 +0000 | [diff] [blame] | 2296 | else if (size == 0) |
| 2297 | arg = NULL; |
| 2298 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 2299 | if (flags & METH_KEYWORDS) |
| 2300 | return (*(PyCFunctionWithKeywords)meth)(self, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2301 | if (kw != NULL && PyDict_Size(kw) != 0) { |
| 2302 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 2303 | "this function takes no keyword arguments"); |
| 2304 | return NULL; |
| 2305 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2306 | return (*meth)(self, arg); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2307 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2308 | if (PyClass_Check(func)) { |
| 2309 | return PyInstance_New(func, arg, kw); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2310 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2311 | if (PyInstance_Check(func)) { |
| 2312 | PyObject *res, *call = PyObject_GetAttrString(func,"__call__"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2313 | if (call == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2314 | PyErr_Clear(); |
| 2315 | PyErr_SetString(PyExc_AttributeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2316 | "no __call__ method defined"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2317 | return NULL; |
| 2318 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 2319 | res = PyEval_CallObjectWithKeywords(call, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2320 | Py_DECREF(call); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2321 | return res; |
| 2322 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2323 | PyErr_SetString(PyExc_TypeError, "call of non-function"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2324 | return NULL; |
| 2325 | } |
| 2326 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2327 | static PyObject * |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2328 | call_function(func, arg, kw) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2329 | PyObject *func; |
| 2330 | PyObject *arg; |
| 2331 | PyObject *kw; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2332 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2333 | PyObject *class = NULL; /* == owner */ |
| 2334 | PyObject *argdefs; |
| 2335 | PyObject **d, **k; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2336 | int nk, nd; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2337 | PyObject *result; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2338 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2339 | if (kw != NULL && !PyDict_Check(kw)) { |
| 2340 | PyErr_BadInternalCall(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2341 | return NULL; |
| 2342 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2343 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2344 | if (PyMethod_Check(func)) { |
| 2345 | PyObject *self = PyMethod_Self(func); |
| 2346 | class = PyMethod_Class(func); |
| 2347 | func = PyMethod_Function(func); |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2348 | if (self == NULL) { |
| 2349 | /* Unbound methods must be called with an instance of |
| 2350 | the class (or a derived class) as first argument */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2351 | if (PyTuple_Size(arg) >= 1) { |
| 2352 | self = PyTuple_GET_ITEM(arg, 0); |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2353 | if (self != NULL && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2354 | PyInstance_Check(self) && |
| 2355 | PyClass_IsSubclass((PyObject *) |
| 2356 | (((PyInstanceObject *)self)->in_class), |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2357 | class)) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2358 | /* Handy-dandy */ ; |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2359 | else |
| 2360 | self = NULL; |
| 2361 | } |
| 2362 | if (self == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2363 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2364 | "unbound method must be called with class instance 1st argument"); |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2365 | return NULL; |
| 2366 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2367 | Py_INCREF(arg); |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2368 | } |
| 2369 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2370 | int argcount = PyTuple_Size(arg); |
| 2371 | PyObject *newarg = PyTuple_New(argcount + 1); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2372 | int i; |
Guido van Rossum | 81daa32 | 1993-05-20 14:24:46 +0000 | [diff] [blame] | 2373 | if (newarg == NULL) |
| 2374 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2375 | Py_INCREF(self); |
| 2376 | PyTuple_SET_ITEM(newarg, 0, self); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2377 | for (i = 0; i < argcount; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2378 | PyObject *v = PyTuple_GET_ITEM(arg, i); |
| 2379 | Py_XINCREF(v); |
| 2380 | PyTuple_SET_ITEM(newarg, i+1, v); |
Guido van Rossum | 81daa32 | 1993-05-20 14:24:46 +0000 | [diff] [blame] | 2381 | } |
| 2382 | arg = newarg; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2383 | } |
| 2384 | } |
| 2385 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2386 | if (!PyFunction_Check(func)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2387 | PyErr_SetString(PyExc_TypeError, |
| 2388 | "call of non-function"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2389 | return NULL; |
| 2390 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2391 | Py_INCREF(arg); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2392 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2393 | |
| 2394 | argdefs = PyFunction_GetDefaults(func); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2395 | if (argdefs != NULL && PyTuple_Check(argdefs)) { |
| 2396 | d = &PyTuple_GET_ITEM((PyTupleObject *)argdefs, 0); |
| 2397 | nd = PyTuple_Size(argdefs); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2398 | } |
| 2399 | else { |
| 2400 | d = NULL; |
| 2401 | nd = 0; |
| 2402 | } |
| 2403 | |
| 2404 | if (kw != NULL) { |
| 2405 | int pos, i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2406 | nk = PyDict_Size(kw); |
| 2407 | k = PyMem_NEW(PyObject *, 2*nk); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2408 | if (k == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2409 | PyErr_NoMemory(); |
| 2410 | Py_DECREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2411 | return NULL; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2412 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2413 | pos = i = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2414 | while (PyDict_Next(kw, &pos, &k[i], &k[i+1])) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2415 | i += 2; |
| 2416 | nk = i/2; |
| 2417 | /* XXX This is broken if the caller deletes dict items! */ |
| 2418 | } |
| 2419 | else { |
| 2420 | k = NULL; |
| 2421 | nk = 0; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2422 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2423 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2424 | result = eval_code2( |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2425 | (PyCodeObject *)PyFunction_GetCode(func), |
| 2426 | PyFunction_GetGlobals(func), (PyObject *)NULL, |
| 2427 | &PyTuple_GET_ITEM(arg, 0), PyTuple_Size(arg), |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2428 | k, nk, |
| 2429 | d, nd, |
| 2430 | class); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2431 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2432 | Py_DECREF(arg); |
| 2433 | PyMem_XDEL(k); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2434 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2435 | return result; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2436 | } |
| 2437 | |
Guido van Rossum | 3b9c667 | 1996-07-30 18:40:29 +0000 | [diff] [blame] | 2438 | #define SLICE_ERROR_MSG \ |
| 2439 | "standard sequence type does not support step size other than one" |
| 2440 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2441 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2442 | loop_subscript(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2443 | PyObject *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2444 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2445 | PySequenceMethods *sq = v->ob_type->tp_as_sequence; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2446 | int i; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2447 | if (sq == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2448 | PyErr_SetString(PyExc_TypeError, "loop over non-sequence"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2449 | return NULL; |
| 2450 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2451 | i = PyInt_AsLong(w); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2452 | v = (*sq->sq_item)(v, i); |
| 2453 | if (v) |
| 2454 | return v; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2455 | if (PyErr_Occurred() == PyExc_IndexError) |
| 2456 | PyErr_Clear(); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2457 | return NULL; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2458 | } |
| 2459 | |
| 2460 | static int |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2461 | slice_index(v, pi) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2462 | PyObject *v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2463 | int *pi; |
| 2464 | { |
| 2465 | if (v != NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2466 | long x; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2467 | if (!PyInt_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2468 | PyErr_SetString(PyExc_TypeError, |
| 2469 | "slice index must be int"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2470 | return -1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2471 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2472 | x = PyInt_AsLong(v); |
| 2473 | /* Truncate -- very long indices are truncated anyway */ |
| 2474 | if (x > INT_MAX) |
| 2475 | x = INT_MAX; |
| 2476 | else if (x < -INT_MAX) |
| 2477 | x = 0; |
| 2478 | *pi = x; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2479 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2480 | return 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2481 | } |
| 2482 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2483 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2484 | apply_slice(u, v, w) /* return u[v:w] */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2485 | PyObject *u, *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2486 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2487 | int ilow = 0, ihigh = INT_MAX; |
| 2488 | if (slice_index(v, &ilow) != 0) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2489 | return NULL; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2490 | if (slice_index(w, &ihigh) != 0) |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2491 | return NULL; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2492 | return PySequence_GetSlice(u, ilow, ihigh); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2493 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2494 | |
| 2495 | static int |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2496 | assign_slice(u, v, w, x) /* u[v:w] = x */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2497 | PyObject *u, *v, *w, *x; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2498 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2499 | int ilow = 0, ihigh = INT_MAX; |
| 2500 | if (slice_index(v, &ilow) != 0) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2501 | return -1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2502 | if (slice_index(w, &ihigh) != 0) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2503 | return -1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2504 | if (x == NULL) |
| 2505 | return PySequence_DelSlice(u, ilow, ihigh); |
| 2506 | else |
| 2507 | return PySequence_SetSlice(u, ilow, ihigh, x); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2508 | } |
| 2509 | |
| 2510 | static int |
| 2511 | cmp_exception(err, v) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2512 | PyObject *err, *v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2513 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2514 | if (PyTuple_Check(v)) { |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2515 | int i, n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2516 | n = PyTuple_Size(v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2517 | for (i = 0; i < n; i++) { |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 2518 | /* Test recursively */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2519 | if (cmp_exception(err, PyTuple_GET_ITEM(v, i))) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2520 | return 1; |
| 2521 | } |
| 2522 | return 0; |
| 2523 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2524 | if (PyClass_Check(v) && PyClass_Check(err)) |
| 2525 | return PyClass_IsSubclass(err, v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2526 | return err == v; |
| 2527 | } |
| 2528 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2529 | static int |
| 2530 | cmp_member(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2531 | PyObject *v, *w; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2532 | { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2533 | int i, cmp; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2534 | PyObject *x; |
| 2535 | PySequenceMethods *sq; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2536 | /* Special case for char in string */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2537 | if (PyString_Check(w)) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2538 | register char *s, *end; |
| 2539 | register char c; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2540 | if (!PyString_Check(v) || PyString_Size(v) != 1) { |
| 2541 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2542 | "string member test needs char left operand"); |
| 2543 | return -1; |
| 2544 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2545 | c = PyString_AsString(v)[0]; |
| 2546 | s = PyString_AsString(w); |
| 2547 | end = s + PyString_Size(w); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2548 | while (s < end) { |
| 2549 | if (c == *s++) |
| 2550 | return 1; |
| 2551 | } |
| 2552 | return 0; |
| 2553 | } |
| 2554 | sq = w->ob_type->tp_as_sequence; |
| 2555 | if (sq == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2556 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2557 | "'in' or 'not in' needs sequence right argument"); |
| 2558 | return -1; |
| 2559 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2560 | for (i = 0; ; i++) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2561 | x = (*sq->sq_item)(w, i); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2562 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2563 | if (PyErr_Occurred() == PyExc_IndexError) { |
| 2564 | PyErr_Clear(); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2565 | break; |
| 2566 | } |
| 2567 | return -1; |
| 2568 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2569 | cmp = PyObject_Compare(v, x); |
| 2570 | Py_XDECREF(x); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2571 | if (cmp == 0) |
| 2572 | return 1; |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 2573 | if (PyErr_Occurred()) |
| 2574 | return -1; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2575 | } |
| 2576 | return 0; |
| 2577 | } |
| 2578 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2579 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2580 | cmp_outcome(op, v, w) |
Guido van Rossum | 5b7313a | 1992-04-06 13:24:57 +0000 | [diff] [blame] | 2581 | int op; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2582 | register PyObject *v; |
| 2583 | register PyObject *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2584 | { |
| 2585 | register int cmp; |
| 2586 | register int res = 0; |
| 2587 | switch (op) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2588 | case IS: |
| 2589 | case IS_NOT: |
| 2590 | res = (v == w); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2591 | if (op == (int) IS_NOT) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2592 | res = !res; |
| 2593 | break; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2594 | case IN: |
| 2595 | case NOT_IN: |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2596 | res = cmp_member(v, w); |
| 2597 | if (res < 0) |
| 2598 | return NULL; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2599 | if (op == (int) NOT_IN) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2600 | res = !res; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2601 | break; |
| 2602 | case EXC_MATCH: |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2603 | res = cmp_exception(v, w); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2604 | break; |
| 2605 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2606 | cmp = PyObject_Compare(v, w); |
Guido van Rossum | c8b6df9 | 1997-05-23 00:06:51 +0000 | [diff] [blame] | 2607 | if (cmp && PyErr_Occurred()) |
| 2608 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2609 | switch (op) { |
| 2610 | case LT: res = cmp < 0; break; |
| 2611 | case LE: res = cmp <= 0; break; |
| 2612 | case EQ: res = cmp == 0; break; |
| 2613 | case NE: res = cmp != 0; break; |
| 2614 | case GT: res = cmp > 0; break; |
| 2615 | case GE: res = cmp >= 0; break; |
| 2616 | /* XXX no default? (res is initialized to 0 though) */ |
| 2617 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2618 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2619 | v = res ? Py_True : Py_False; |
| 2620 | Py_INCREF(v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2621 | return v; |
| 2622 | } |
| 2623 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2624 | static int |
| 2625 | import_from(locals, v, name) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2626 | PyObject *locals; |
| 2627 | PyObject *v; |
| 2628 | PyObject *name; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2629 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2630 | PyObject *w, *x; |
| 2631 | if (!PyModule_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2632 | PyErr_SetString(PyExc_TypeError, |
| 2633 | "import-from requires module object"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2634 | return -1; |
| 2635 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2636 | w = PyModule_GetDict(v); |
| 2637 | if (PyString_AsString(name)[0] == '*') { |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 2638 | int pos, err; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2639 | PyObject *name, *value; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2640 | pos = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2641 | while (PyDict_Next(w, &pos, &name, &value)) { |
| 2642 | if (!PyString_Check(name) || |
| 2643 | PyString_AsString(name)[0] == '_') |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2644 | continue; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2645 | Py_INCREF(value); |
| 2646 | err = PyDict_SetItem(locals, name, value); |
| 2647 | Py_DECREF(value); |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 2648 | if (err != 0) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2649 | return -1; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2650 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2651 | return 0; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2652 | } |
| 2653 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2654 | x = PyDict_GetItem(w, name); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2655 | if (x == NULL) { |
Guido van Rossum | 98256aa | 1991-12-24 13:25:19 +0000 | [diff] [blame] | 2656 | char buf[250]; |
Guido van Rossum | 16dfd29 | 1992-02-05 11:17:30 +0000 | [diff] [blame] | 2657 | sprintf(buf, "cannot import name %.230s", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2658 | PyString_AsString(name)); |
| 2659 | PyErr_SetString(PyExc_ImportError, buf); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2660 | return -1; |
| 2661 | } |
| 2662 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2663 | return PyDict_SetItem(locals, name, x); |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2664 | } |
| 2665 | } |
| 2666 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2667 | static PyObject * |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2668 | build_class(methods, bases, name) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2669 | PyObject *methods; /* dictionary */ |
| 2670 | PyObject *bases; /* tuple containing classes */ |
| 2671 | PyObject *name; /* string */ |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2672 | { |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2673 | int i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2674 | if (!PyTuple_Check(bases)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2675 | PyErr_SetString(PyExc_SystemError, |
| 2676 | "build_class with non-tuple bases"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2677 | return NULL; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2678 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2679 | if (!PyDict_Check(methods)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2680 | PyErr_SetString(PyExc_SystemError, |
| 2681 | "build_class with non-dictionary"); |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2682 | return NULL; |
| 2683 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2684 | if (!PyString_Check(name)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2685 | PyErr_SetString(PyExc_SystemError, |
| 2686 | "build_class witn non-string name"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2687 | return NULL; |
| 2688 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2689 | for (i = PyTuple_Size(bases); --i >= 0; ) { |
| 2690 | PyObject *base = PyTuple_GET_ITEM(bases, i); |
| 2691 | if (!PyClass_Check(base)) { |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2692 | /* Call the base's *type*, if it is callable. |
| 2693 | This code is a hook for Donald Beaudry's |
| 2694 | and Jim Fulton's type extensions. In |
| 2695 | unexended Python it will never be triggered |
| 2696 | since its types are not callable. */ |
| 2697 | if (base->ob_type->ob_type->tp_call) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2698 | PyObject *args; |
| 2699 | PyObject *class; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2700 | args = Py_BuildValue("(OOO)", |
| 2701 | name, bases, methods); |
| 2702 | class = PyEval_CallObject( |
| 2703 | (PyObject *)base->ob_type, args); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2704 | Py_DECREF(args); |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2705 | return class; |
| 2706 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2707 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2708 | "base is not a class object"); |
| 2709 | return NULL; |
| 2710 | } |
| 2711 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2712 | return PyClass_New(bases, methods, name); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2713 | } |
| 2714 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2715 | static int |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2716 | exec_statement(f, prog, globals, locals) |
| 2717 | PyFrameObject *f; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2718 | PyObject *prog; |
| 2719 | PyObject *globals; |
| 2720 | PyObject *locals; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2721 | { |
| 2722 | char *s; |
| 2723 | int n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2724 | PyObject *v; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2725 | int plain = 0; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2726 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2727 | if (PyTuple_Check(prog) && globals == Py_None && locals == Py_None && |
| 2728 | ((n = PyTuple_Size(prog)) == 2 || n == 3)) { |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2729 | /* Backward compatibility hack */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2730 | globals = PyTuple_GetItem(prog, 1); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2731 | if (n == 3) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2732 | locals = PyTuple_GetItem(prog, 2); |
| 2733 | prog = PyTuple_GetItem(prog, 0); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2734 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2735 | if (globals == Py_None) { |
| 2736 | globals = PyEval_GetGlobals(); |
| 2737 | if (locals == Py_None) { |
| 2738 | locals = PyEval_GetLocals(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2739 | plain = 1; |
| 2740 | } |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2741 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2742 | else if (locals == Py_None) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2743 | locals = globals; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2744 | if (!PyString_Check(prog) && |
| 2745 | !PyCode_Check(prog) && |
| 2746 | !PyFile_Check(prog)) { |
| 2747 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2748 | "exec 1st arg must be string, code or file object"); |
| 2749 | return -1; |
| 2750 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2751 | if (!PyDict_Check(globals) || !PyDict_Check(locals)) { |
| 2752 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2753 | "exec 2nd/3rd args must be dict or None"); |
| 2754 | return -1; |
| 2755 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2756 | if (PyDict_GetItemString(globals, "__builtins__") == NULL) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2757 | PyDict_SetItemString(globals, "__builtins__", f->f_builtins); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2758 | if (PyCode_Check(prog)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2759 | if (PyEval_EvalCode((PyCodeObject *) prog, |
| 2760 | globals, locals) == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2761 | return -1; |
| 2762 | return 0; |
| 2763 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2764 | if (PyFile_Check(prog)) { |
| 2765 | FILE *fp = PyFile_AsFile(prog); |
| 2766 | char *name = PyString_AsString(PyFile_Name(prog)); |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 2767 | if (PyRun_File(fp, name, Py_file_input, |
| 2768 | globals, locals) == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2769 | return -1; |
| 2770 | return 0; |
| 2771 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2772 | s = PyString_AsString(prog); |
Guido van Rossum | 5f15b96 | 1997-05-13 17:50:01 +0000 | [diff] [blame] | 2773 | if ((int)strlen(s) != PyString_Size(prog)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2774 | PyErr_SetString(PyExc_ValueError, |
| 2775 | "embedded '\\0' in exec string"); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2776 | return -1; |
| 2777 | } |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 2778 | v = PyRun_String(s, Py_file_input, globals, locals); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2779 | if (v == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2780 | return -1; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2781 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2782 | if (plain) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2783 | PyFrame_LocalsToFast(f, 0); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2784 | return 0; |
| 2785 | } |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 2786 | |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 2787 | /* Hack for ni.py */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2788 | static PyObject * |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 2789 | find_from_args(f, nexti) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2790 | PyFrameObject *f; |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 2791 | int nexti; |
| 2792 | { |
| 2793 | int opcode; |
| 2794 | int oparg; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2795 | PyObject *list, *name; |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 2796 | unsigned char *next_instr; |
| 2797 | |
| 2798 | next_instr = GETUSTRINGVALUE(f->f_code->co_code) + nexti; |
| 2799 | opcode = (*next_instr++); |
| 2800 | if (opcode != IMPORT_FROM) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2801 | Py_INCREF(Py_None); |
| 2802 | return Py_None; |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 2803 | } |
| 2804 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2805 | list = PyList_New(0); |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 2806 | if (list == NULL) |
| 2807 | return NULL; |
| 2808 | |
| 2809 | do { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2810 | oparg = (next_instr[1]<<8) + next_instr[0]; |
| 2811 | next_instr += 2; |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 2812 | name = Getnamev(f, oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2813 | if (PyList_Append(list, name) < 0) { |
| 2814 | Py_DECREF(list); |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 2815 | break; |
| 2816 | } |
| 2817 | opcode = (*next_instr++); |
| 2818 | } while (opcode == IMPORT_FROM); |
| 2819 | |
| 2820 | return list; |
| 2821 | } |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 2822 | |
| 2823 | |
| 2824 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 2825 | |
| 2826 | PyObject * |
| 2827 | getarray(a) |
| 2828 | long a[256]; |
| 2829 | { |
| 2830 | int i; |
| 2831 | PyObject *l = PyList_New(256); |
| 2832 | if (l == NULL) return NULL; |
| 2833 | for (i = 0; i < 256; i++) { |
| 2834 | PyObject *x = PyInt_FromLong(a[i]); |
| 2835 | if (x == NULL) { |
| 2836 | Py_DECREF(l); |
| 2837 | return NULL; |
| 2838 | } |
| 2839 | PyList_SetItem(l, i, x); |
| 2840 | } |
| 2841 | for (i = 0; i < 256; i++) |
| 2842 | a[i] = 0; |
| 2843 | return l; |
| 2844 | } |
| 2845 | |
| 2846 | PyObject * |
| 2847 | _Py_GetDXProfile(self, args) |
| 2848 | PyObject *self, *args; |
| 2849 | { |
| 2850 | #ifndef DXPAIRS |
| 2851 | return getarray(dxp); |
| 2852 | #else |
| 2853 | int i; |
| 2854 | PyObject *l = PyList_New(257); |
| 2855 | if (l == NULL) return NULL; |
| 2856 | for (i = 0; i < 257; i++) { |
| 2857 | PyObject *x = getarray(dxpairs[i]); |
| 2858 | if (x == NULL) { |
| 2859 | Py_DECREF(l); |
| 2860 | return NULL; |
| 2861 | } |
| 2862 | PyList_SetItem(l, i, x); |
| 2863 | } |
| 2864 | return l; |
| 2865 | #endif |
| 2866 | } |
| 2867 | |
| 2868 | #endif |