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" |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 46 | #include "graminit.h" |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 47 | |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 48 | #include <ctype.h> |
| 49 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 50 | #ifdef HAVE_LIMITS_H |
| 51 | #include <limits.h> |
| 52 | #else |
| 53 | #define INT_MAX 2147483647 |
| 54 | #endif |
| 55 | |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 56 | /* Turn this on if your compiler chokes on the big switch: */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 57 | /* #define CASE_TOO_BIG 1 */ |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 58 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 59 | #ifdef Py_DEBUG |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 60 | /* For debugging the interpreter: */ |
| 61 | #define LLTRACE 1 /* Low-level trace feature */ |
| 62 | #define CHECKEXC 1 /* Double-check exception checking */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 63 | #endif |
| 64 | |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 65 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 66 | /* Forward declarations */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 67 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 68 | static PyObject *eval_code2 Py_PROTO((PyCodeObject *, |
| 69 | PyObject *, PyObject *, |
| 70 | PyObject **, int, |
| 71 | PyObject **, int, |
| 72 | PyObject **, int, |
| 73 | PyObject *)); |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 74 | #ifdef LLTRACE |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 75 | static int prtrace Py_PROTO((PyObject *, char *)); |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 76 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 77 | static void call_exc_trace Py_PROTO((PyObject **, PyObject**, |
| 78 | PyFrameObject *)); |
| 79 | static int call_trace Py_PROTO((PyObject **, PyObject **, |
| 80 | PyFrameObject *, char *, PyObject *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 81 | static PyObject *add Py_PROTO((PyObject *, PyObject *)); |
| 82 | static PyObject *sub Py_PROTO((PyObject *, PyObject *)); |
| 83 | static PyObject *powerop Py_PROTO((PyObject *, PyObject *)); |
| 84 | static PyObject *mul Py_PROTO((PyObject *, PyObject *)); |
| 85 | static PyObject *divide Py_PROTO((PyObject *, PyObject *)); |
| 86 | static PyObject *mod Py_PROTO((PyObject *, PyObject *)); |
| 87 | static PyObject *neg Py_PROTO((PyObject *)); |
| 88 | static PyObject *pos Py_PROTO((PyObject *)); |
| 89 | static PyObject *not Py_PROTO((PyObject *)); |
| 90 | static PyObject *invert Py_PROTO((PyObject *)); |
| 91 | static PyObject *lshift Py_PROTO((PyObject *, PyObject *)); |
| 92 | static PyObject *rshift Py_PROTO((PyObject *, PyObject *)); |
| 93 | static PyObject *and Py_PROTO((PyObject *, PyObject *)); |
| 94 | static PyObject *xor Py_PROTO((PyObject *, PyObject *)); |
| 95 | static PyObject *or Py_PROTO((PyObject *, PyObject *)); |
| 96 | static PyObject *call_builtin Py_PROTO((PyObject *, PyObject *, PyObject *)); |
| 97 | static PyObject *call_function Py_PROTO((PyObject *, PyObject *, PyObject *)); |
| 98 | static PyObject *apply_subscript Py_PROTO((PyObject *, PyObject *)); |
| 99 | static PyObject *loop_subscript Py_PROTO((PyObject *, PyObject *)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 100 | static int slice_index Py_PROTO((PyObject *, int *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 101 | static PyObject *apply_slice Py_PROTO((PyObject *, PyObject *, PyObject *)); |
| 102 | static int assign_subscript Py_PROTO((PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 103 | static int assign_slice Py_PROTO((PyObject *, PyObject *, |
| 104 | PyObject *, PyObject *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 105 | static int cmp_exception Py_PROTO((PyObject *, PyObject *)); |
| 106 | static int cmp_member Py_PROTO((PyObject *, PyObject *)); |
| 107 | static PyObject *cmp_outcome Py_PROTO((int, PyObject *, PyObject *)); |
| 108 | static int import_from Py_PROTO((PyObject *, PyObject *, PyObject *)); |
| 109 | static PyObject *build_class Py_PROTO((PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 110 | static int exec_statement Py_PROTO((PyFrameObject *, |
| 111 | PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 112 | static PyObject *find_from_args Py_PROTO((PyFrameObject *, int)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 113 | static void set_exc_info Py_PROTO((PyThreadState *, |
| 114 | PyObject *, PyObject *, PyObject *)); |
| 115 | static void reset_exc_info Py_PROTO((PyThreadState *)); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 116 | |
| 117 | |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 118 | /* Dynamic execution profile */ |
| 119 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 120 | #ifdef DXPAIRS |
| 121 | static long dxpairs[257][256]; |
| 122 | #define dxp dxpairs[256] |
| 123 | #else |
| 124 | static long dxp[256]; |
| 125 | #endif |
| 126 | #endif |
| 127 | |
| 128 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 129 | #ifdef WITH_THREAD |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 130 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 131 | #include <errno.h> |
| 132 | #include "thread.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 133 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 134 | extern int _PyThread_Started; /* Flag for Py_Exit */ |
| 135 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 136 | static type_lock interpreter_lock = 0; |
| 137 | static long main_thread = 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 138 | |
| 139 | void |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 140 | PyEval_InitThreads() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 141 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 142 | if (interpreter_lock) |
Sjoerd Mullender | ed59d20 | 1993-01-06 13:36:38 +0000 | [diff] [blame] | 143 | return; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 144 | _PyThread_Started = 1; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 145 | interpreter_lock = allocate_lock(); |
| 146 | acquire_lock(interpreter_lock, 1); |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 147 | main_thread = get_thread_ident(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 148 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 149 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 150 | #endif |
| 151 | |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 152 | /* Functions save_thread and restore_thread are always defined so |
| 153 | dynamically loaded modules needn't be compiled separately for use |
| 154 | with and without threads: */ |
| 155 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 156 | PyObject * |
| 157 | PyEval_SaveThread() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 158 | { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 159 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 160 | if (interpreter_lock) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 161 | PyThreadState *tstate = PyThreadState_Swap(NULL); |
| 162 | PyObject *res = tstate ? (PyObject *) (tstate->frame) : NULL; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 163 | release_lock(interpreter_lock); |
| 164 | return res; |
| 165 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 166 | #endif |
Guido van Rossum | 9575a44 | 1993-04-07 14:06:14 +0000 | [diff] [blame] | 167 | return NULL; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 168 | } |
| 169 | |
| 170 | void |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 171 | PyEval_RestoreThread(x) |
| 172 | PyObject *x; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 173 | { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 174 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 175 | if (interpreter_lock) { |
| 176 | int err; |
| 177 | err = errno; |
| 178 | acquire_lock(interpreter_lock, 1); |
| 179 | errno = err; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 180 | PyThreadState_Swap(x ? ((PyFrameObject *)x)->f_tstate : NULL); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 181 | } |
| 182 | #endif |
| 183 | } |
| 184 | |
| 185 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 186 | /* Mechanism whereby asynchronously executing callbacks (e.g. UNIX |
| 187 | signal handlers or Mac I/O completion routines) can schedule calls |
| 188 | to a function to be called synchronously. |
| 189 | The synchronous function is called with one void* argument. |
| 190 | It should return 0 for success or -1 for failure -- failure should |
| 191 | be accompanied by an exception. |
| 192 | |
| 193 | If registry succeeds, the registry function returns 0; if it fails |
| 194 | (e.g. due to too many pending calls) it returns -1 (without setting |
| 195 | an exception condition). |
| 196 | |
| 197 | Note that because registry may occur from within signal handlers, |
| 198 | or other asynchronous events, calling malloc() is unsafe! |
| 199 | |
| 200 | #ifdef WITH_THREAD |
| 201 | Any thread can schedule pending calls, but only the main thread |
| 202 | will execute them. |
| 203 | #endif |
| 204 | |
| 205 | XXX WARNING! ASYNCHRONOUSLY EXECUTING CODE! |
| 206 | There are two possible race conditions: |
| 207 | (1) nested asynchronous registry calls; |
| 208 | (2) registry calls made while pending calls are being processed. |
| 209 | While (1) is very unlikely, (2) is a real possibility. |
| 210 | The current code is safe against (2), but not against (1). |
| 211 | The safety against (2) is derived from the fact that only one |
| 212 | thread (the main thread) ever takes things out of the queue. |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 213 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 214 | XXX Darn! With the advent of thread state, we should have an array |
| 215 | of pending calls per thread in the thread state! Later... |
| 216 | */ |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 217 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 218 | #define NPENDINGCALLS 32 |
| 219 | static struct { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 220 | int (*func) Py_PROTO((ANY *)); |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 221 | ANY *arg; |
| 222 | } pendingcalls[NPENDINGCALLS]; |
| 223 | static volatile int pendingfirst = 0; |
| 224 | static volatile int pendinglast = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 225 | static volatile int things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 226 | |
| 227 | int |
| 228 | Py_AddPendingCall(func, arg) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 229 | int (*func) Py_PROTO((ANY *)); |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 230 | ANY *arg; |
| 231 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 232 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 233 | int i, j; |
| 234 | /* XXX Begin critical section */ |
| 235 | /* XXX If you want this to be safe against nested |
| 236 | XXX asynchronous calls, you'll have to work harder! */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 237 | if (busy) |
| 238 | return -1; |
| 239 | busy = 1; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 240 | i = pendinglast; |
| 241 | j = (i + 1) % NPENDINGCALLS; |
| 242 | if (j == pendingfirst) |
| 243 | return -1; /* Queue full */ |
| 244 | pendingcalls[i].func = func; |
| 245 | pendingcalls[i].arg = arg; |
| 246 | pendinglast = j; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 247 | things_to_do = 1; /* Signal main loop */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 248 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 249 | /* XXX End critical section */ |
| 250 | return 0; |
| 251 | } |
| 252 | |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 253 | int |
| 254 | Py_MakePendingCalls() |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 255 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 256 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 257 | #ifdef WITH_THREAD |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 258 | if (main_thread && get_thread_ident() != main_thread) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 259 | return 0; |
| 260 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 261 | if (busy) |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 262 | return 0; |
| 263 | busy = 1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 264 | things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 265 | for (;;) { |
| 266 | int i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 267 | int (*func) Py_PROTO((ANY *)); |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 268 | ANY *arg; |
| 269 | i = pendingfirst; |
| 270 | if (i == pendinglast) |
| 271 | break; /* Queue empty */ |
| 272 | func = pendingcalls[i].func; |
| 273 | arg = pendingcalls[i].arg; |
| 274 | pendingfirst = (i + 1) % NPENDINGCALLS; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 275 | if (func(arg) < 0) { |
| 276 | busy = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 277 | things_to_do = 1; /* We're not done yet */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 278 | return -1; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 279 | } |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 280 | } |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 281 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 282 | return 0; |
| 283 | } |
| 284 | |
| 285 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 286 | /* Status code for main loop (reason for stack unwind) */ |
| 287 | |
| 288 | enum why_code { |
| 289 | WHY_NOT, /* No error */ |
| 290 | WHY_EXCEPTION, /* Exception occurred */ |
| 291 | WHY_RERAISE, /* Exception re-raised by 'finally' */ |
| 292 | WHY_RETURN, /* 'return' statement */ |
| 293 | WHY_BREAK /* 'break' statement */ |
| 294 | }; |
| 295 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 296 | static enum why_code do_raise Py_PROTO((PyObject *, PyObject *, PyObject *)); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 297 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 298 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 299 | /* Backward compatible interface */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 300 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 301 | PyObject * |
| 302 | PyEval_EvalCode(co, globals, locals) |
| 303 | PyCodeObject *co; |
| 304 | PyObject *globals; |
| 305 | PyObject *locals; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 306 | { |
| 307 | return eval_code2(co, |
| 308 | globals, locals, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 309 | (PyObject **)NULL, 0, |
| 310 | (PyObject **)NULL, 0, |
| 311 | (PyObject **)NULL, 0, |
| 312 | (PyObject *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | |
| 316 | /* Interpreter main loop */ |
| 317 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 318 | #ifndef MAX_RECURSION_DEPTH |
| 319 | #define MAX_RECURSION_DEPTH 10000 |
| 320 | #endif |
| 321 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 322 | static PyObject * |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 323 | eval_code2(co, globals, locals, |
| 324 | args, argcount, kws, kwcount, defs, defcount, owner) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 325 | PyCodeObject *co; |
| 326 | PyObject *globals; |
| 327 | PyObject *locals; |
| 328 | PyObject **args; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 329 | int argcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 330 | PyObject **kws; /* length: 2*kwcount */ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 331 | int kwcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 332 | PyObject **defs; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 333 | int defcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 334 | PyObject *owner; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 335 | { |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 336 | #ifdef DXPAIRS |
| 337 | int lastopcode = 0; |
| 338 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 339 | register unsigned char *next_instr; |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 340 | register int opcode = 0; /* Current opcode */ |
| 341 | register int oparg = 0; /* Current opcode argument, if any */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 342 | register PyObject **stack_pointer; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 343 | register enum why_code why; /* Reason for block stack unwind */ |
| 344 | register int err; /* Error status -- nonzero if error */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 345 | register PyObject *x; /* Result object -- NULL if error */ |
| 346 | register PyObject *v; /* Temporary objects popped off stack */ |
| 347 | register PyObject *w; |
| 348 | register PyObject *u; |
| 349 | register PyObject *t; |
| 350 | register PyFrameObject *f; /* Current frame */ |
| 351 | register PyObject **fastlocals = NULL; |
| 352 | PyObject *retval = NULL; /* Return value */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 353 | PyThreadState *tstate = PyThreadState_Get(); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 354 | #ifdef LLTRACE |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 355 | int lltrace; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 356 | #endif |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 357 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 358 | /* 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] | 359 | char *filename = PyString_AsString(co->co_filename); |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 360 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 361 | |
| 362 | /* Code access macros */ |
| 363 | |
| 364 | #define GETCONST(i) Getconst(f, i) |
| 365 | #define GETNAME(i) Getname(f, i) |
| 366 | #define GETNAMEV(i) Getnamev(f, i) |
Guido van Rossum | deb0c5e | 1997-01-27 23:42:36 +0000 | [diff] [blame] | 367 | #define FIRST_INSTR() (GETUSTRINGVALUE(co->co_code)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 368 | #define INSTR_OFFSET() (next_instr - FIRST_INSTR()) |
| 369 | #define NEXTOP() (*next_instr++) |
| 370 | #define NEXTARG() (next_instr += 2, (next_instr[-1]<<8) + next_instr[-2]) |
| 371 | #define JUMPTO(x) (next_instr = FIRST_INSTR() + (x)) |
| 372 | #define JUMPBY(x) (next_instr += (x)) |
| 373 | |
| 374 | /* Stack manipulation macros */ |
| 375 | |
| 376 | #define STACK_LEVEL() (stack_pointer - f->f_valuestack) |
| 377 | #define EMPTY() (STACK_LEVEL() == 0) |
| 378 | #define TOP() (stack_pointer[-1]) |
| 379 | #define BASIC_PUSH(v) (*stack_pointer++ = (v)) |
| 380 | #define BASIC_POP() (*--stack_pointer) |
| 381 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 382 | #ifdef LLTRACE |
| 383 | #define PUSH(v) (BASIC_PUSH(v), lltrace && prtrace(TOP(), "push")) |
| 384 | #define POP() (lltrace && prtrace(TOP(), "pop"), BASIC_POP()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 385 | #else |
| 386 | #define PUSH(v) BASIC_PUSH(v) |
| 387 | #define POP() BASIC_POP() |
| 388 | #endif |
| 389 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 390 | /* Local variable macros */ |
| 391 | |
| 392 | #define GETLOCAL(i) (fastlocals[i]) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 393 | #define SETLOCAL(i, value) do { Py_XDECREF(GETLOCAL(i)); \ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 394 | GETLOCAL(i) = value; } while (0) |
| 395 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 396 | /* Start of code */ |
| 397 | |
| 398 | if (tstate == NULL) |
| 399 | Py_FatalError("eval_code2 called without a current thread"); |
| 400 | |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 401 | #ifdef USE_STACKCHECK |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 402 | if (tstate->recursion_depth%10 == 0 && PyOS_CheckStack()) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 403 | PyErr_SetString(PyExc_MemoryError, "Stack overflow"); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 404 | return NULL; |
| 405 | } |
| 406 | #endif |
| 407 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 408 | if (globals == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 409 | PyErr_SetString(PyExc_SystemError, "eval_code2: NULL globals"); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 410 | return NULL; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 411 | } |
| 412 | |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 413 | #ifdef LLTRACE |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 414 | lltrace = PyDict_GetItemString(globals, "__lltrace__") != NULL; |
Guido van Rossum | acbe8da | 1993-04-15 15:33:52 +0000 | [diff] [blame] | 415 | #endif |
| 416 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 417 | f = PyFrame_New( |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 418 | tstate, /*back*/ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 419 | co, /*code*/ |
| 420 | globals, /*globals*/ |
Guido van Rossum | 7683602 | 1997-01-20 04:26:20 +0000 | [diff] [blame] | 421 | locals); /*locals*/ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 422 | if (f == NULL) |
| 423 | return NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 424 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 425 | tstate->frame = f; |
Guido van Rossum | deb0c5e | 1997-01-27 23:42:36 +0000 | [diff] [blame] | 426 | fastlocals = f->f_localsplus; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 427 | |
| 428 | if (co->co_argcount > 0 || |
| 429 | co->co_flags & (CO_VARARGS | CO_VARKEYWORDS)) { |
| 430 | int i; |
| 431 | int n = argcount; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 432 | PyObject *kwdict = NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 433 | if (co->co_flags & CO_VARKEYWORDS) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 434 | kwdict = PyDict_New(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 435 | if (kwdict == NULL) |
| 436 | goto fail; |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 437 | i = co->co_argcount; |
| 438 | if (co->co_flags & CO_VARARGS) |
| 439 | i++; |
| 440 | SETLOCAL(i, kwdict); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 441 | } |
| 442 | if (argcount > co->co_argcount) { |
| 443 | if (!(co->co_flags & CO_VARARGS)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 444 | PyErr_SetString(PyExc_TypeError, |
| 445 | "too many arguments"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 446 | goto fail; |
| 447 | } |
| 448 | n = co->co_argcount; |
| 449 | } |
| 450 | for (i = 0; i < n; i++) { |
| 451 | x = args[i]; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 452 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 453 | SETLOCAL(i, x); |
| 454 | } |
| 455 | if (co->co_flags & CO_VARARGS) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 456 | u = PyTuple_New(argcount - n); |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 457 | if (u == NULL) |
| 458 | goto fail; |
| 459 | SETLOCAL(co->co_argcount, u); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 460 | for (i = n; i < argcount; i++) { |
| 461 | x = args[i]; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 462 | Py_INCREF(x); |
| 463 | PyTuple_SET_ITEM(u, i-n, x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 464 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 465 | } |
| 466 | for (i = 0; i < kwcount; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 467 | PyObject *keyword = kws[2*i]; |
| 468 | PyObject *value = kws[2*i + 1]; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 469 | int j; |
| 470 | /* XXX slow -- speed up using dictionary? */ |
| 471 | for (j = 0; j < co->co_argcount; j++) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 472 | PyObject *nm = PyTuple_GET_ITEM( |
| 473 | co->co_varnames, j); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 474 | if (PyObject_Compare(keyword, nm) == 0) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 475 | break; |
| 476 | } |
| 477 | if (j >= co->co_argcount) { |
| 478 | if (kwdict == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 479 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 480 | "unexpected keyword argument: %.400s", |
| 481 | PyString_AsString(keyword)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 482 | goto fail; |
| 483 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 484 | PyDict_SetItem(kwdict, keyword, value); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 485 | } |
| 486 | else { |
| 487 | if (GETLOCAL(j) != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 488 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 489 | "keyword parameter redefined"); |
| 490 | goto fail; |
| 491 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 492 | Py_INCREF(value); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 493 | SETLOCAL(j, value); |
| 494 | } |
| 495 | } |
| 496 | if (argcount < co->co_argcount) { |
| 497 | int m = co->co_argcount - defcount; |
| 498 | for (i = argcount; i < m; i++) { |
| 499 | if (GETLOCAL(i) == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 500 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 501 | "not enough arguments"); |
| 502 | goto fail; |
| 503 | } |
| 504 | } |
| 505 | if (n > m) |
| 506 | i = n - m; |
| 507 | else |
| 508 | i = 0; |
| 509 | for (; i < defcount; i++) { |
| 510 | if (GETLOCAL(m+i) == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 511 | PyObject *def = defs[i]; |
| 512 | Py_INCREF(def); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 513 | SETLOCAL(m+i, def); |
| 514 | } |
| 515 | } |
| 516 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 517 | } |
| 518 | else { |
| 519 | if (argcount > 0 || kwcount > 0) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 520 | PyErr_SetString(PyExc_TypeError, |
| 521 | "no arguments expected"); |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 522 | goto fail; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 523 | } |
| 524 | } |
| 525 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 526 | if (tstate->sys_tracefunc != NULL) { |
| 527 | /* tstate->sys_tracefunc, if defined, is a function that |
| 528 | will be called on *every* entry to a code block. |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 529 | Its return value, if not None, is a function that |
| 530 | will be called at the start of each executed line |
| 531 | of code. (Actually, the function must return |
| 532 | itself in order to continue tracing.) |
| 533 | The trace functions are called with three arguments: |
| 534 | a pointer to the current frame, a string indicating |
| 535 | why the function is called, and an argument which |
| 536 | depends on the situation. The global trace function |
| 537 | (sys.trace) is also called whenever an exception |
| 538 | is detected. */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 539 | if (call_trace(&tstate->sys_tracefunc, |
| 540 | &f->f_trace, f, "call", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 541 | Py_None/*XXX how to compute arguments now?*/)) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 542 | /* Trace function raised an error */ |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 543 | goto fail; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 544 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 545 | } |
| 546 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 547 | if (tstate->sys_profilefunc != NULL) { |
| 548 | /* Similar for sys_profilefunc, except it needn't return |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 549 | itself and isn't called for "line" events */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 550 | if (call_trace(&tstate->sys_profilefunc, |
| 551 | (PyObject**)0, f, "call", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 552 | Py_None/*XXX*/)) { |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 553 | goto fail; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 554 | } |
| 555 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 556 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 557 | if (++tstate->recursion_depth > MAX_RECURSION_DEPTH) { |
| 558 | --tstate->recursion_depth; |
| 559 | PyErr_SetString(PyExc_RuntimeError, |
| 560 | "Maximum recursion depth exceeded"); |
| 561 | tstate->frame = f->f_back; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 562 | Py_DECREF(f); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 563 | return NULL; |
| 564 | } |
| 565 | |
Guido van Rossum | deb0c5e | 1997-01-27 23:42:36 +0000 | [diff] [blame] | 566 | next_instr = GETUSTRINGVALUE(co->co_code); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 567 | stack_pointer = f->f_valuestack; |
| 568 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 569 | why = WHY_NOT; |
| 570 | err = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 571 | x = Py_None; /* Not a reference, just anything non-NULL */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 572 | |
| 573 | for (;;) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 574 | /* Do periodic things. Doing this every time through |
| 575 | the loop would add too much overhead, so we do it |
| 576 | only every Nth instruction. We also do it if |
| 577 | ``things_to_do'' is set, i.e. when an asynchronous |
| 578 | event needs attention (e.g. a signal handler or |
| 579 | async I/O handler); see Py_AddPendingCall() and |
| 580 | Py_MakePendingCalls() above. */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 581 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 582 | if (things_to_do || --tstate->ticker < 0) { |
| 583 | tstate->ticker = tstate->sys_checkinterval; |
| 584 | if (things_to_do) { |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 585 | if (Py_MakePendingCalls() < 0) { |
| 586 | why = WHY_EXCEPTION; |
| 587 | goto on_error; |
| 588 | } |
| 589 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 590 | #if !defined(HAVE_SIGNAL_H) && !defined(macintosh) |
| 591 | /* If we have true signals, the signal handler |
| 592 | will call Py_AddPendingCall() so we don't |
| 593 | have to call sigcheck(). On the Mac and |
| 594 | DOS, alas, we have to call it. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 595 | if (PyErr_CheckSignals()) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 596 | why = WHY_EXCEPTION; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 597 | goto on_error; |
| 598 | } |
Guido van Rossum | 70d4478 | 1997-01-21 06:15:24 +0000 | [diff] [blame] | 599 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 600 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 601 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 602 | if (interpreter_lock) { |
| 603 | /* Give another thread a chance */ |
| 604 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 605 | PyThreadState *tstate = |
| 606 | PyThreadState_Swap(NULL); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 607 | release_lock(interpreter_lock); |
| 608 | |
| 609 | /* Other threads may run now */ |
| 610 | |
| 611 | acquire_lock(interpreter_lock, 1); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 612 | PyThreadState_Swap(tstate); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 613 | } |
| 614 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 615 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 616 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 617 | /* Extract opcode and argument */ |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 618 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 619 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 620 | f->f_lasti = INSTR_OFFSET(); |
| 621 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 622 | |
| 623 | opcode = NEXTOP(); |
| 624 | if (HAS_ARG(opcode)) |
| 625 | oparg = NEXTARG(); |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 626 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 627 | #ifdef DXPAIRS |
| 628 | dxpairs[lastopcode][opcode]++; |
| 629 | lastopcode = opcode; |
| 630 | #endif |
| 631 | dxp[opcode]++; |
| 632 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 633 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 634 | #ifdef LLTRACE |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 635 | /* Instruction tracing */ |
| 636 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 637 | if (lltrace) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 638 | if (HAS_ARG(opcode)) { |
| 639 | printf("%d: %d, %d\n", |
| 640 | (int) (INSTR_OFFSET() - 3), |
| 641 | opcode, oparg); |
| 642 | } |
| 643 | else { |
| 644 | printf("%d: %d\n", |
| 645 | (int) (INSTR_OFFSET() - 1), opcode); |
| 646 | } |
| 647 | } |
| 648 | #endif |
| 649 | |
| 650 | /* Main switch on opcode */ |
| 651 | |
| 652 | switch (opcode) { |
| 653 | |
| 654 | /* BEWARE! |
| 655 | It is essential that any operation that fails sets either |
| 656 | x to NULL, err to nonzero, or why to anything but WHY_NOT, |
| 657 | and that no operation that succeeds does this! */ |
| 658 | |
| 659 | /* case STOP_CODE: this is an error! */ |
| 660 | |
| 661 | case POP_TOP: |
| 662 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 663 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 664 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 665 | |
| 666 | case ROT_TWO: |
| 667 | v = POP(); |
| 668 | w = POP(); |
| 669 | PUSH(v); |
| 670 | PUSH(w); |
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_THREE: |
| 674 | v = POP(); |
| 675 | w = POP(); |
| 676 | x = POP(); |
| 677 | PUSH(v); |
| 678 | PUSH(x); |
| 679 | PUSH(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 680 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 681 | |
| 682 | case DUP_TOP: |
| 683 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 684 | Py_INCREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 685 | PUSH(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 686 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 687 | |
| 688 | case UNARY_POSITIVE: |
| 689 | v = POP(); |
| 690 | x = pos(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 691 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 692 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 693 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 694 | break; |
| 695 | |
| 696 | case UNARY_NEGATIVE: |
| 697 | v = POP(); |
| 698 | x = neg(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 699 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 700 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 701 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 702 | break; |
| 703 | |
| 704 | case UNARY_NOT: |
| 705 | v = POP(); |
| 706 | x = not(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 707 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 708 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 709 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 710 | break; |
| 711 | |
| 712 | case UNARY_CONVERT: |
| 713 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 714 | x = PyObject_Repr(v); |
| 715 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 716 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 717 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 718 | break; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 719 | |
| 720 | case UNARY_INVERT: |
| 721 | v = POP(); |
| 722 | x = invert(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 723 | Py_DECREF(v); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 724 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 725 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 726 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 727 | |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 728 | case BINARY_POWER: |
| 729 | w = POP(); |
| 730 | v = POP(); |
Guido van Rossum | 3b4da59 | 1996-06-19 21:49:17 +0000 | [diff] [blame] | 731 | x = powerop(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 732 | Py_DECREF(v); |
| 733 | Py_DECREF(w); |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 734 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 735 | if (x != NULL) continue; |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 736 | break; |
| 737 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 738 | case BINARY_MULTIPLY: |
| 739 | w = POP(); |
| 740 | v = POP(); |
| 741 | x = mul(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 742 | Py_DECREF(v); |
| 743 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 744 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 745 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 746 | break; |
| 747 | |
| 748 | case BINARY_DIVIDE: |
| 749 | w = POP(); |
| 750 | v = POP(); |
| 751 | x = divide(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 752 | Py_DECREF(v); |
| 753 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 754 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 755 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 756 | break; |
| 757 | |
| 758 | case BINARY_MODULO: |
| 759 | w = POP(); |
| 760 | v = POP(); |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 761 | x = mod(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 762 | Py_DECREF(v); |
| 763 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 764 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 765 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 766 | break; |
| 767 | |
| 768 | case BINARY_ADD: |
| 769 | w = POP(); |
| 770 | v = POP(); |
| 771 | x = add(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 772 | Py_DECREF(v); |
| 773 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 774 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 775 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 776 | break; |
| 777 | |
| 778 | case BINARY_SUBTRACT: |
| 779 | w = POP(); |
| 780 | v = POP(); |
| 781 | x = sub(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 782 | Py_DECREF(v); |
| 783 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 784 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 785 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 786 | break; |
| 787 | |
| 788 | case BINARY_SUBSCR: |
| 789 | w = POP(); |
| 790 | v = POP(); |
| 791 | x = apply_subscript(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 792 | Py_DECREF(v); |
| 793 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 794 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 795 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 796 | break; |
| 797 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 798 | case BINARY_LSHIFT: |
| 799 | w = POP(); |
| 800 | v = POP(); |
| 801 | x = lshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 802 | Py_DECREF(v); |
| 803 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 804 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 805 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 806 | break; |
| 807 | |
| 808 | case BINARY_RSHIFT: |
| 809 | w = POP(); |
| 810 | v = POP(); |
| 811 | x = rshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 812 | Py_DECREF(v); |
| 813 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 814 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 815 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 816 | break; |
| 817 | |
| 818 | case BINARY_AND: |
| 819 | w = POP(); |
| 820 | v = POP(); |
| 821 | x = and(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 822 | Py_DECREF(v); |
| 823 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 824 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 825 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 826 | break; |
| 827 | |
| 828 | case BINARY_XOR: |
| 829 | w = POP(); |
| 830 | v = POP(); |
| 831 | x = xor(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 832 | Py_DECREF(v); |
| 833 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 834 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 835 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 836 | break; |
| 837 | |
| 838 | case BINARY_OR: |
| 839 | w = POP(); |
| 840 | v = POP(); |
| 841 | x = or(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 842 | Py_DECREF(v); |
| 843 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 844 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 845 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 846 | break; |
| 847 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 848 | case SLICE+0: |
| 849 | case SLICE+1: |
| 850 | case SLICE+2: |
| 851 | case SLICE+3: |
| 852 | if ((opcode-SLICE) & 2) |
| 853 | w = POP(); |
| 854 | else |
| 855 | w = NULL; |
| 856 | if ((opcode-SLICE) & 1) |
| 857 | v = POP(); |
| 858 | else |
| 859 | v = NULL; |
| 860 | u = POP(); |
| 861 | x = apply_slice(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 862 | Py_DECREF(u); |
| 863 | Py_XDECREF(v); |
| 864 | Py_XDECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 865 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 866 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 867 | break; |
| 868 | |
| 869 | case STORE_SLICE+0: |
| 870 | case STORE_SLICE+1: |
| 871 | case STORE_SLICE+2: |
| 872 | case STORE_SLICE+3: |
| 873 | if ((opcode-STORE_SLICE) & 2) |
| 874 | w = POP(); |
| 875 | else |
| 876 | w = NULL; |
| 877 | if ((opcode-STORE_SLICE) & 1) |
| 878 | v = POP(); |
| 879 | else |
| 880 | v = NULL; |
| 881 | u = POP(); |
| 882 | t = POP(); |
| 883 | err = assign_slice(u, v, w, t); /* u[v:w] = t */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 884 | Py_DECREF(t); |
| 885 | Py_DECREF(u); |
| 886 | Py_XDECREF(v); |
| 887 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 888 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 889 | break; |
| 890 | |
| 891 | case DELETE_SLICE+0: |
| 892 | case DELETE_SLICE+1: |
| 893 | case DELETE_SLICE+2: |
| 894 | case DELETE_SLICE+3: |
| 895 | if ((opcode-DELETE_SLICE) & 2) |
| 896 | w = POP(); |
| 897 | else |
| 898 | w = NULL; |
| 899 | if ((opcode-DELETE_SLICE) & 1) |
| 900 | v = POP(); |
| 901 | else |
| 902 | v = NULL; |
| 903 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 904 | err = assign_slice(u, v, w, (PyObject *)NULL); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 905 | /* del u[v:w] */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 906 | Py_DECREF(u); |
| 907 | Py_XDECREF(v); |
| 908 | Py_XDECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 909 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 910 | break; |
| 911 | |
| 912 | case STORE_SUBSCR: |
| 913 | w = POP(); |
| 914 | v = POP(); |
| 915 | u = POP(); |
| 916 | /* v[w] = u */ |
| 917 | err = assign_subscript(v, w, u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 918 | Py_DECREF(u); |
| 919 | Py_DECREF(v); |
| 920 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 921 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 922 | break; |
| 923 | |
| 924 | case DELETE_SUBSCR: |
| 925 | w = POP(); |
| 926 | v = POP(); |
| 927 | /* del v[w] */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 928 | err = assign_subscript(v, w, (PyObject *)NULL); |
| 929 | Py_DECREF(v); |
| 930 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 931 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 932 | break; |
| 933 | |
| 934 | case PRINT_EXPR: |
| 935 | v = POP(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 936 | /* Print value except if procedure result */ |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 937 | /* Before printing, also assign to '_' */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 938 | if (v != Py_None && |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 939 | (err = PyDict_SetItemString( |
| 940 | f->f_builtins, "_", v)) == 0 && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 941 | !Py_SuppressPrintingFlag) { |
| 942 | Py_FlushLine(); |
| 943 | x = PySys_GetObject("stdout"); |
| 944 | err = PyFile_WriteObject(v, x, 0); |
| 945 | PyFile_SoftSpace(x, 1); |
| 946 | Py_FlushLine(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 947 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 948 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 949 | break; |
| 950 | |
| 951 | case PRINT_ITEM: |
| 952 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 953 | w = PySys_GetObject("stdout"); |
| 954 | if (PyFile_SoftSpace(w, 1)) |
| 955 | PyFile_WriteString(" ", w); |
| 956 | err = PyFile_WriteObject(v, w, Py_PRINT_RAW); |
| 957 | if (err == 0 && PyString_Check(v)) { |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 958 | /* XXX move into writeobject() ? */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 959 | char *s = PyString_AsString(v); |
| 960 | int len = PyString_Size(v); |
Guido van Rossum | 7f7f274 | 1995-02-10 17:01:56 +0000 | [diff] [blame] | 961 | if (len > 0 && |
| 962 | isspace(Py_CHARMASK(s[len-1])) && |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 963 | s[len-1] != ' ') |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 964 | PyFile_SoftSpace(w, 0); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 965 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 966 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 967 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 968 | break; |
| 969 | |
| 970 | case PRINT_NEWLINE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 971 | x = PySys_GetObject("stdout"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 972 | if (x == NULL) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 973 | PyErr_SetString(PyExc_RuntimeError, |
| 974 | "lost sys.stdout"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 975 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 976 | PyFile_WriteString("\n", x); |
| 977 | PyFile_SoftSpace(x, 0); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 978 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 979 | break; |
| 980 | |
| 981 | case BREAK_LOOP: |
| 982 | why = WHY_BREAK; |
| 983 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 984 | |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 985 | case RAISE_VARARGS: |
| 986 | u = v = w = NULL; |
| 987 | switch (oparg) { |
| 988 | case 3: |
| 989 | u = POP(); /* traceback */ |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 990 | /* Fallthrough */ |
| 991 | case 2: |
| 992 | v = POP(); /* value */ |
| 993 | /* Fallthrough */ |
| 994 | case 1: |
| 995 | w = POP(); /* exc */ |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 996 | why = do_raise(w, v, u); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 997 | break; |
| 998 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 999 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1000 | "bad RAISE_VARARGS oparg"); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1001 | why = WHY_EXCEPTION; |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1002 | break; |
| 1003 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1004 | break; |
| 1005 | |
| 1006 | case LOAD_LOCALS: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1007 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1008 | PyErr_SetString(PyExc_SystemError, |
| 1009 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1010 | break; |
| 1011 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1012 | Py_INCREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1013 | PUSH(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1014 | break; |
| 1015 | |
| 1016 | case RETURN_VALUE: |
| 1017 | retval = POP(); |
| 1018 | why = WHY_RETURN; |
| 1019 | break; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1020 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1021 | case EXEC_STMT: |
| 1022 | w = POP(); |
| 1023 | v = POP(); |
| 1024 | u = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1025 | err = exec_statement(f, u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1026 | Py_DECREF(u); |
| 1027 | Py_DECREF(v); |
| 1028 | Py_DECREF(w); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1029 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1030 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1031 | case POP_BLOCK: |
| 1032 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1033 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1034 | while (STACK_LEVEL() > b->b_level) { |
| 1035 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1036 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1037 | } |
| 1038 | } |
| 1039 | break; |
| 1040 | |
| 1041 | case END_FINALLY: |
| 1042 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1043 | if (PyInt_Check(v)) { |
| 1044 | why = (enum why_code) PyInt_AsLong(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1045 | if (why == WHY_RETURN) |
| 1046 | retval = POP(); |
| 1047 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1048 | else if (PyString_Check(v) || PyClass_Check(v)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1049 | w = POP(); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1050 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1051 | PyErr_Restore(v, w, u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1052 | why = WHY_RERAISE; |
Guido van Rossum | 0db1ef9 | 1995-07-28 23:06:00 +0000 | [diff] [blame] | 1053 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1054 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1055 | else if (v != Py_None) { |
| 1056 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1057 | "'finally' pops bad exception"); |
| 1058 | why = WHY_EXCEPTION; |
| 1059 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1060 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1061 | break; |
| 1062 | |
| 1063 | case BUILD_CLASS: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1064 | u = POP(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1065 | v = POP(); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1066 | w = POP(); |
| 1067 | x = build_class(u, v, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1068 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1069 | Py_DECREF(u); |
| 1070 | Py_DECREF(v); |
| 1071 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1072 | break; |
| 1073 | |
| 1074 | case STORE_NAME: |
| 1075 | w = GETNAMEV(oparg); |
| 1076 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1077 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1078 | PyErr_SetString(PyExc_SystemError, |
| 1079 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1080 | break; |
| 1081 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1082 | err = PyDict_SetItem(x, w, v); |
| 1083 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1084 | break; |
| 1085 | |
| 1086 | case DELETE_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1087 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1088 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1089 | PyErr_SetString(PyExc_SystemError, |
| 1090 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1091 | break; |
| 1092 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1093 | if ((err = PyDict_DelItem(x, w)) != 0) |
| 1094 | PyErr_SetObject(PyExc_NameError, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1095 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1096 | |
| 1097 | #ifdef CASE_TOO_BIG |
| 1098 | default: switch (opcode) { |
| 1099 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1100 | |
| 1101 | case UNPACK_TUPLE: |
| 1102 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1103 | if (!PyTuple_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1104 | PyErr_SetString(PyExc_TypeError, |
| 1105 | "unpack non-tuple"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1106 | why = WHY_EXCEPTION; |
| 1107 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1108 | else if (PyTuple_Size(v) != oparg) { |
| 1109 | PyErr_SetString(PyExc_ValueError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1110 | "unpack tuple of wrong size"); |
| 1111 | why = WHY_EXCEPTION; |
| 1112 | } |
| 1113 | else { |
| 1114 | for (; --oparg >= 0; ) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1115 | w = PyTuple_GET_ITEM(v, oparg); |
| 1116 | Py_INCREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1117 | PUSH(w); |
| 1118 | } |
| 1119 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1120 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1121 | break; |
| 1122 | |
| 1123 | case UNPACK_LIST: |
| 1124 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1125 | if (!PyList_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1126 | PyErr_SetString(PyExc_TypeError, |
| 1127 | "unpack non-list"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1128 | why = WHY_EXCEPTION; |
| 1129 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1130 | else if (PyList_Size(v) != oparg) { |
| 1131 | PyErr_SetString(PyExc_ValueError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1132 | "unpack list of wrong size"); |
| 1133 | why = WHY_EXCEPTION; |
| 1134 | } |
| 1135 | else { |
| 1136 | for (; --oparg >= 0; ) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1137 | w = PyList_GetItem(v, oparg); |
| 1138 | Py_INCREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1139 | PUSH(w); |
| 1140 | } |
| 1141 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1142 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1143 | break; |
| 1144 | |
| 1145 | case STORE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1146 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1147 | v = POP(); |
| 1148 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1149 | err = PyObject_SetAttr(v, w, u); /* v.w = u */ |
| 1150 | Py_DECREF(v); |
| 1151 | Py_DECREF(u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1152 | break; |
| 1153 | |
| 1154 | case DELETE_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1155 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1156 | v = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1157 | err = PyObject_SetAttr(v, w, (PyObject *)NULL); |
| 1158 | /* del v.w */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1159 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1160 | break; |
| 1161 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1162 | case STORE_GLOBAL: |
| 1163 | w = GETNAMEV(oparg); |
| 1164 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1165 | err = PyDict_SetItem(f->f_globals, w, v); |
| 1166 | Py_DECREF(v); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1167 | break; |
| 1168 | |
| 1169 | case DELETE_GLOBAL: |
| 1170 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1171 | if ((err = PyDict_DelItem(f->f_globals, w)) != 0) |
| 1172 | PyErr_SetObject(PyExc_NameError, w); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1173 | break; |
| 1174 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1175 | case LOAD_CONST: |
| 1176 | x = GETCONST(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1177 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1178 | PUSH(x); |
| 1179 | break; |
| 1180 | |
| 1181 | case LOAD_NAME: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1182 | w = GETNAMEV(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1183 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1184 | PyErr_SetString(PyExc_SystemError, |
| 1185 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1186 | break; |
| 1187 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1188 | x = PyDict_GetItem(x, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1189 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1190 | PyErr_Clear(); |
| 1191 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1192 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1193 | PyErr_Clear(); |
| 1194 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1195 | if (x == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1196 | PyErr_SetObject( |
| 1197 | PyExc_NameError, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1198 | break; |
| 1199 | } |
| 1200 | } |
| 1201 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1202 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1203 | PUSH(x); |
| 1204 | break; |
| 1205 | |
| 1206 | case LOAD_GLOBAL: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1207 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1208 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1209 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1210 | PyErr_Clear(); |
| 1211 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1212 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1213 | PyErr_SetObject(PyExc_NameError, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1214 | break; |
| 1215 | } |
| 1216 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1217 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1218 | PUSH(x); |
| 1219 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1220 | |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1221 | case LOAD_FAST: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1222 | x = GETLOCAL(oparg); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1223 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1224 | PyErr_SetObject(PyExc_NameError, |
| 1225 | PyTuple_GetItem(co->co_varnames, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1226 | oparg)); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1227 | break; |
| 1228 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1229 | Py_INCREF(x); |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1230 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1231 | if (x != NULL) continue; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1232 | break; |
| 1233 | |
| 1234 | case STORE_FAST: |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1235 | v = POP(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1236 | SETLOCAL(oparg, v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1237 | continue; |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1238 | |
| 1239 | case DELETE_FAST: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1240 | SETLOCAL(oparg, NULL); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1241 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1242 | |
| 1243 | case BUILD_TUPLE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1244 | x = PyTuple_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1245 | if (x != NULL) { |
| 1246 | for (; --oparg >= 0;) { |
| 1247 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1248 | PyTuple_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1249 | } |
| 1250 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1251 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1252 | } |
| 1253 | break; |
| 1254 | |
| 1255 | case BUILD_LIST: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1256 | x = PyList_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1257 | if (x != NULL) { |
| 1258 | for (; --oparg >= 0;) { |
| 1259 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1260 | err = PyList_SetItem(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1261 | if (err != 0) |
| 1262 | break; |
| 1263 | } |
| 1264 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1265 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1266 | } |
| 1267 | break; |
| 1268 | |
| 1269 | case BUILD_MAP: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1270 | x = PyDict_New(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1271 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1272 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1273 | break; |
| 1274 | |
| 1275 | case LOAD_ATTR: |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1276 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1277 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1278 | x = PyObject_GetAttr(v, w); |
| 1279 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1280 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1281 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1282 | break; |
| 1283 | |
| 1284 | case COMPARE_OP: |
| 1285 | w = POP(); |
| 1286 | v = POP(); |
Guido van Rossum | 5b7313a | 1992-04-06 13:24:57 +0000 | [diff] [blame] | 1287 | x = cmp_outcome(oparg, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1288 | Py_DECREF(v); |
| 1289 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1290 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1291 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1292 | break; |
| 1293 | |
| 1294 | case IMPORT_NAME: |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1295 | w = GETNAMEV(oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1296 | x = PyDict_GetItemString(f->f_builtins, "__import__"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1297 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1298 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1299 | "__import__ not found"); |
| 1300 | break; |
| 1301 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1302 | if (PyCFunction_Check(x)) { |
| 1303 | u = Py_None; |
| 1304 | Py_INCREF(u); |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 1305 | } |
| 1306 | else { |
| 1307 | u = find_from_args(f, INSTR_OFFSET()); |
| 1308 | if (u == NULL) { |
| 1309 | x = u; |
| 1310 | break; |
| 1311 | } |
| 1312 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1313 | w = Py_BuildValue("(OOOO)", |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1314 | w, |
| 1315 | f->f_globals, |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1316 | f->f_locals == NULL ? |
| 1317 | Py_None : f->f_locals, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1318 | u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1319 | Py_DECREF(u); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1320 | if (w == NULL) { |
| 1321 | x = NULL; |
| 1322 | break; |
| 1323 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1324 | x = PyEval_CallObject(x, w); |
| 1325 | Py_DECREF(w); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1326 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1327 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1328 | break; |
| 1329 | |
| 1330 | case IMPORT_FROM: |
Guido van Rossum | df62e44 | 1991-08-16 08:56:04 +0000 | [diff] [blame] | 1331 | w = GETNAMEV(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1332 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1333 | PyFrame_FastToLocals(f); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1334 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1335 | PyErr_SetString(PyExc_SystemError, |
| 1336 | "no locals"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1337 | break; |
| 1338 | } |
| 1339 | err = import_from(x, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1340 | PyFrame_LocalsToFast(f, 0); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1341 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1342 | break; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1343 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1344 | case JUMP_FORWARD: |
| 1345 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1346 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1347 | |
| 1348 | case JUMP_IF_FALSE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1349 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1350 | if (err > 0) |
| 1351 | err = 0; |
| 1352 | else if (err == 0) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1353 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1354 | else |
| 1355 | break; |
| 1356 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1357 | |
| 1358 | case JUMP_IF_TRUE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1359 | err = PyObject_IsTrue(TOP()); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1360 | if (err > 0) { |
| 1361 | err = 0; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1362 | JUMPBY(oparg); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1363 | } |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1364 | else if (err == 0) |
| 1365 | ; |
| 1366 | else |
| 1367 | break; |
| 1368 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1369 | |
| 1370 | case JUMP_ABSOLUTE: |
| 1371 | JUMPTO(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1372 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1373 | |
| 1374 | case FOR_LOOP: |
| 1375 | /* for v in s: ... |
| 1376 | On entry: stack contains s, i. |
| 1377 | On exit: stack contains s, i+1, s[i]; |
| 1378 | but if loop exhausted: |
| 1379 | s, i are popped, and we jump */ |
| 1380 | w = POP(); /* Loop index */ |
| 1381 | v = POP(); /* Sequence object */ |
| 1382 | u = loop_subscript(v, w); |
| 1383 | if (u != NULL) { |
| 1384 | PUSH(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1385 | x = PyInt_FromLong(PyInt_AsLong(w)+1); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1386 | PUSH(x); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1387 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1388 | PUSH(u); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1389 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1390 | } |
| 1391 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1392 | Py_DECREF(v); |
| 1393 | Py_DECREF(w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1394 | /* A NULL can mean "s exhausted" |
| 1395 | but also an error: */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1396 | if (PyErr_Occurred()) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1397 | why = WHY_EXCEPTION; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1398 | else { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1399 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1400 | continue; |
| 1401 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1402 | } |
| 1403 | break; |
| 1404 | |
| 1405 | case SETUP_LOOP: |
| 1406 | case SETUP_EXCEPT: |
| 1407 | case SETUP_FINALLY: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1408 | PyFrame_BlockSetup(f, opcode, INSTR_OFFSET() + oparg, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1409 | STACK_LEVEL()); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1410 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1411 | |
| 1412 | case SET_LINENO: |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1413 | #ifdef LLTRACE |
| 1414 | if (lltrace) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1415 | printf("--- %s:%d \n", filename, oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1416 | #endif |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1417 | f->f_lineno = oparg; |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1418 | if (f->f_trace == NULL) |
| 1419 | continue; |
| 1420 | /* Trace each line of code reached */ |
| 1421 | f->f_lasti = INSTR_OFFSET(); |
| 1422 | err = call_trace(&f->f_trace, &f->f_trace, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1423 | f, "line", Py_None); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1424 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1425 | |
| 1426 | case CALL_FUNCTION: |
| 1427 | { |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1428 | int na = oparg & 0xff; |
| 1429 | int nk = (oparg>>8) & 0xff; |
| 1430 | int n = na + 2*nk; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1431 | PyObject **pfunc = stack_pointer - n - 1; |
| 1432 | PyObject *func = *pfunc; |
| 1433 | PyObject *self = NULL; |
| 1434 | PyObject *class = NULL; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1435 | f->f_lasti = INSTR_OFFSET() - 3; /* For tracing */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1436 | if (PyMethod_Check(func)) { |
| 1437 | self = PyMethod_Self(func); |
| 1438 | class = PyMethod_Class(func); |
| 1439 | func = PyMethod_Function(func); |
| 1440 | Py_INCREF(func); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1441 | if (self != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1442 | Py_INCREF(self); |
| 1443 | Py_DECREF(*pfunc); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1444 | *pfunc = self; |
| 1445 | na++; |
| 1446 | n++; |
| 1447 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1448 | else { |
| 1449 | /* Unbound methods must be |
| 1450 | called with an instance of |
| 1451 | the class (or a derived |
| 1452 | class) as first argument */ |
| 1453 | if (na > 0 && |
| 1454 | (self = stack_pointer[-n]) |
| 1455 | != NULL && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1456 | PyInstance_Check(self) && |
| 1457 | PyClass_IsSubclass( |
| 1458 | (PyObject *) |
| 1459 | (((PyInstanceObject *)self) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1460 | ->in_class), |
| 1461 | class)) |
| 1462 | /* Handy-dandy */ ; |
| 1463 | else { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1464 | PyErr_SetString( |
| 1465 | PyExc_TypeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1466 | "unbound method must be called with class instance 1st argument"); |
Guido van Rossum | 72b56e8 | 1995-12-10 04:57:42 +0000 | [diff] [blame] | 1467 | x = NULL; |
| 1468 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1469 | } |
| 1470 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1471 | } |
| 1472 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1473 | Py_INCREF(func); |
| 1474 | if (PyFunction_Check(func)) { |
| 1475 | PyObject *co = PyFunction_GetCode(func); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1476 | PyObject *globals = |
| 1477 | PyFunction_GetGlobals(func); |
| 1478 | PyObject *argdefs = |
| 1479 | PyFunction_GetDefaults(func); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1480 | PyObject **d; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1481 | int nd; |
| 1482 | if (argdefs != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1483 | d = &PyTuple_GET_ITEM(argdefs, 0); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1484 | nd = ((PyTupleObject *)argdefs) -> |
| 1485 | ob_size; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1486 | } |
| 1487 | else { |
| 1488 | d = NULL; |
| 1489 | nd = 0; |
| 1490 | } |
| 1491 | x = eval_code2( |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1492 | (PyCodeObject *)co, |
| 1493 | globals, (PyObject *)NULL, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1494 | stack_pointer-n, na, |
| 1495 | stack_pointer-2*nk, nk, |
| 1496 | d, nd, |
| 1497 | class); |
| 1498 | } |
| 1499 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1500 | PyObject *args = PyTuple_New(na); |
| 1501 | PyObject *kwdict = NULL; |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1502 | if (args == NULL) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1503 | x = NULL; |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1504 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1505 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1506 | if (nk > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1507 | kwdict = PyDict_New(); |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1508 | if (kwdict == NULL) { |
| 1509 | x = NULL; |
| 1510 | break; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1511 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1512 | err = 0; |
| 1513 | while (--nk >= 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1514 | PyObject *value = POP(); |
| 1515 | PyObject *key = POP(); |
| 1516 | err = PyDict_SetItem( |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1517 | kwdict, key, value); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1518 | Py_DECREF(key); |
| 1519 | Py_DECREF(value); |
Guido van Rossum | d0eb429 | 1997-01-27 21:30:09 +0000 | [diff] [blame] | 1520 | if (err) |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1521 | break; |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1522 | } |
| 1523 | if (err) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1524 | Py_DECREF(args); |
| 1525 | Py_DECREF(kwdict); |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1526 | break; |
| 1527 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1528 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1529 | while (--na >= 0) { |
| 1530 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1531 | PyTuple_SET_ITEM(args, na, w); |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 1532 | } |
| 1533 | x = PyEval_CallObjectWithKeywords( |
| 1534 | func, args, kwdict); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1535 | Py_DECREF(args); |
| 1536 | Py_XDECREF(kwdict); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1537 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1538 | Py_DECREF(func); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1539 | while (stack_pointer > pfunc) { |
| 1540 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1541 | Py_DECREF(w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1542 | } |
| 1543 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1544 | if (x != NULL) continue; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1545 | break; |
| 1546 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1547 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1548 | case MAKE_FUNCTION: |
| 1549 | v = POP(); /* code object */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1550 | x = PyFunction_New(v, f->f_globals); |
| 1551 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1552 | /* XXX Maybe this should be a separate opcode? */ |
| 1553 | if (x != NULL && oparg > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1554 | v = PyTuple_New(oparg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1555 | if (v == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1556 | Py_DECREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1557 | x = NULL; |
| 1558 | break; |
| 1559 | } |
| 1560 | while (--oparg >= 0) { |
| 1561 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1562 | PyTuple_SET_ITEM(v, oparg, w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1563 | } |
| 1564 | err = PyFunction_SetDefaults(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1565 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1566 | } |
| 1567 | PUSH(x); |
| 1568 | break; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1569 | |
| 1570 | case BUILD_SLICE: |
| 1571 | if (oparg == 3) |
| 1572 | w = POP(); |
| 1573 | else |
| 1574 | w = NULL; |
| 1575 | v = POP(); |
| 1576 | u = POP(); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 1577 | x = PySlice_New(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1578 | Py_DECREF(u); |
| 1579 | Py_DECREF(v); |
| 1580 | Py_XDECREF(w); |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1581 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1582 | if (x != NULL) continue; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 1583 | break; |
| 1584 | |
| 1585 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1586 | default: |
| 1587 | fprintf(stderr, |
| 1588 | "XXX lineno: %d, opcode: %d\n", |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1589 | f->f_lineno, opcode); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1590 | PyErr_SetString(PyExc_SystemError, "unknown opcode"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1591 | why = WHY_EXCEPTION; |
| 1592 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1593 | |
| 1594 | #ifdef CASE_TOO_BIG |
| 1595 | } |
| 1596 | #endif |
| 1597 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1598 | } /* switch */ |
| 1599 | |
| 1600 | on_error: |
| 1601 | |
| 1602 | /* Quickly continue if no error occurred */ |
| 1603 | |
| 1604 | if (why == WHY_NOT) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1605 | if (err == 0 && x != NULL) { |
| 1606 | #ifdef CHECKEXC |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1607 | if (PyErr_Occurred()) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1608 | fprintf(stderr, |
| 1609 | "XXX undetected error\n"); |
| 1610 | else |
| 1611 | #endif |
| 1612 | continue; /* Normal, fast path */ |
| 1613 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1614 | why = WHY_EXCEPTION; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1615 | x = Py_None; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1616 | err = 0; |
| 1617 | } |
| 1618 | |
Guido van Rossum | 801dcae | 1992-04-08 11:32:32 +0000 | [diff] [blame] | 1619 | #ifdef CHECKEXC |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1620 | /* Double-check exception status */ |
| 1621 | |
| 1622 | if (why == WHY_EXCEPTION || why == WHY_RERAISE) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1623 | if (!PyErr_Occurred()) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1624 | fprintf(stderr, "XXX ghost error\n"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1625 | PyErr_SetString(PyExc_SystemError, |
| 1626 | "ghost error"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1627 | why = WHY_EXCEPTION; |
| 1628 | } |
| 1629 | } |
| 1630 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1631 | if (PyErr_Occurred()) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1632 | fprintf(stderr, |
| 1633 | "XXX undetected error (why=%d)\n", |
| 1634 | why); |
| 1635 | why = WHY_EXCEPTION; |
| 1636 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1637 | } |
| 1638 | #endif |
| 1639 | |
| 1640 | /* Log traceback info if this is a real exception */ |
| 1641 | |
| 1642 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1643 | f->f_lasti = INSTR_OFFSET() - 1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1644 | if (HAS_ARG(opcode)) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1645 | f->f_lasti -= 2; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1646 | PyTraceBack_Here(f); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1647 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 1648 | if (f->f_trace) |
| 1649 | call_exc_trace(&f->f_trace, &f->f_trace, f); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1650 | if (tstate->sys_profilefunc) |
| 1651 | call_exc_trace(&tstate->sys_profilefunc, |
| 1652 | (PyObject**)0, f); |
| 1653 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1654 | |
| 1655 | /* For the rest, treat WHY_RERAISE as WHY_EXCEPTION */ |
| 1656 | |
| 1657 | if (why == WHY_RERAISE) |
| 1658 | why = WHY_EXCEPTION; |
| 1659 | |
| 1660 | /* Unwind stacks if a (pseudo) exception occurred */ |
| 1661 | |
| 1662 | while (why != WHY_NOT && f->f_iblock > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1663 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1664 | while (STACK_LEVEL() > b->b_level) { |
| 1665 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1666 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1667 | } |
| 1668 | if (b->b_type == SETUP_LOOP && why == WHY_BREAK) { |
| 1669 | why = WHY_NOT; |
| 1670 | JUMPTO(b->b_handler); |
| 1671 | break; |
| 1672 | } |
| 1673 | if (b->b_type == SETUP_FINALLY || |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 1674 | (b->b_type == SETUP_EXCEPT && |
| 1675 | why == WHY_EXCEPTION)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1676 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1677 | PyObject *exc, *val, *tb; |
| 1678 | PyErr_Fetch(&exc, &val, &tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1679 | if (val == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1680 | val = Py_None; |
| 1681 | Py_INCREF(val); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1682 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1683 | /* Make the raw exception data |
| 1684 | available to the handler, |
| 1685 | so a program can emulate the |
| 1686 | Python main loop. Don't do |
| 1687 | this for 'finally'. */ |
| 1688 | if (b->b_type == SETUP_EXCEPT) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1689 | set_exc_info(tstate, |
| 1690 | exc, val, tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1691 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1692 | PUSH(tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1693 | PUSH(val); |
| 1694 | PUSH(exc); |
| 1695 | } |
| 1696 | else { |
| 1697 | if (why == WHY_RETURN) |
| 1698 | PUSH(retval); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1699 | v = PyInt_FromLong((long)why); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1700 | PUSH(v); |
| 1701 | } |
| 1702 | why = WHY_NOT; |
| 1703 | JUMPTO(b->b_handler); |
| 1704 | break; |
| 1705 | } |
| 1706 | } /* unwind stack */ |
| 1707 | |
| 1708 | /* End the loop if we still have an error (or return) */ |
| 1709 | |
| 1710 | if (why != WHY_NOT) |
| 1711 | break; |
| 1712 | |
| 1713 | } /* main loop */ |
| 1714 | |
| 1715 | /* Pop remaining stack entries */ |
| 1716 | |
| 1717 | while (!EMPTY()) { |
| 1718 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1719 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1720 | } |
| 1721 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1722 | if (why != WHY_RETURN) |
| 1723 | retval = NULL; |
| 1724 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 1725 | if (f->f_trace) { |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1726 | if (why == WHY_RETURN) { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 1727 | if (call_trace(&f->f_trace, &f->f_trace, f, |
| 1728 | "return", retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1729 | Py_XDECREF(retval); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1730 | retval = NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1731 | why = WHY_EXCEPTION; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1732 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1733 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1734 | } |
| 1735 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1736 | if (tstate->sys_profilefunc && why == WHY_RETURN) { |
| 1737 | if (call_trace(&tstate->sys_profilefunc, (PyObject**)0, |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1738 | f, "return", retval)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1739 | Py_XDECREF(retval); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1740 | retval = NULL; |
| 1741 | why = WHY_EXCEPTION; |
| 1742 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1743 | } |
Guido van Rossum | a424013 | 1997-01-21 21:18:36 +0000 | [diff] [blame] | 1744 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1745 | reset_exc_info(tstate); |
| 1746 | |
| 1747 | --tstate->recursion_depth; |
Guido van Rossum | 8c5df06 | 1997-01-24 04:19:24 +0000 | [diff] [blame] | 1748 | |
| 1749 | fail: /* Jump here from prelude on failure */ |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1750 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1751 | /* Restore previous frame and release the current one */ |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1752 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1753 | tstate->frame = f->f_back; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1754 | Py_DECREF(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1755 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1756 | return retval; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1757 | } |
| 1758 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 1759 | static void |
| 1760 | set_exc_info(tstate, type, value, tb) |
| 1761 | PyThreadState *tstate; |
| 1762 | PyObject *type; |
| 1763 | PyObject *value; |
| 1764 | PyObject *tb; |
| 1765 | { |
| 1766 | PyFrameObject *frame; |
| 1767 | frame = tstate->frame; |
| 1768 | if (frame->f_exc_type == NULL) { |
| 1769 | /* This frame didn't catch an exception before */ |
| 1770 | /* Save previous exception of this thread in this frame */ |
| 1771 | Py_XDECREF(frame->f_exc_type); |
| 1772 | Py_XDECREF(frame->f_exc_value); |
| 1773 | Py_XDECREF(frame->f_exc_traceback); |
| 1774 | if (tstate->exc_type == NULL) { |
| 1775 | Py_INCREF(Py_None); |
| 1776 | tstate->exc_type = Py_None; |
| 1777 | } |
| 1778 | Py_XINCREF(tstate->exc_type); |
| 1779 | Py_XINCREF(tstate->exc_value); |
| 1780 | Py_XINCREF(tstate->exc_traceback); |
| 1781 | frame->f_exc_type = tstate->exc_type; |
| 1782 | frame->f_exc_value = tstate->exc_value; |
| 1783 | frame->f_exc_traceback = tstate->exc_traceback; |
| 1784 | } |
| 1785 | /* Set new exception for this thread */ |
| 1786 | Py_XINCREF(type); |
| 1787 | Py_XINCREF(value); |
| 1788 | Py_XINCREF(tb); |
| 1789 | tstate->exc_type = type; |
| 1790 | tstate->exc_value = value; |
| 1791 | tstate->exc_traceback = tb; |
| 1792 | /* For b/w compatibility */ |
| 1793 | PySys_SetObject("exc_type", type); |
| 1794 | PySys_SetObject("exc_value", value); |
| 1795 | PySys_SetObject("exc_traceback", tb); |
| 1796 | } |
| 1797 | |
| 1798 | static void |
| 1799 | reset_exc_info(tstate) |
| 1800 | PyThreadState *tstate; |
| 1801 | { |
| 1802 | PyFrameObject *frame; |
| 1803 | frame = tstate->frame; |
| 1804 | if (frame->f_exc_type != NULL) { |
| 1805 | /* This frame caught an exception */ |
| 1806 | Py_XDECREF(tstate->exc_type); |
| 1807 | Py_XDECREF(tstate->exc_value); |
| 1808 | Py_XDECREF(tstate->exc_traceback); |
| 1809 | Py_XINCREF(frame->f_exc_type); |
| 1810 | Py_XINCREF(frame->f_exc_value); |
| 1811 | Py_XINCREF(frame->f_exc_traceback); |
| 1812 | tstate->exc_type = frame->f_exc_type; |
| 1813 | tstate->exc_value = frame->f_exc_value; |
| 1814 | tstate->exc_traceback = frame->f_exc_traceback; |
| 1815 | /* For b/w compatibility */ |
| 1816 | PySys_SetObject("exc_type", frame->f_exc_type); |
| 1817 | PySys_SetObject("exc_value", frame->f_exc_value); |
| 1818 | PySys_SetObject("exc_traceback", frame->f_exc_traceback); |
| 1819 | } |
| 1820 | Py_XDECREF(frame->f_exc_type); |
| 1821 | Py_XDECREF(frame->f_exc_value); |
| 1822 | Py_XDECREF(frame->f_exc_traceback); |
| 1823 | frame->f_exc_type = NULL; |
| 1824 | frame->f_exc_value = NULL; |
| 1825 | frame->f_exc_traceback = NULL; |
| 1826 | } |
| 1827 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1828 | /* Logic for the raise statement (too complicated for inlining). |
| 1829 | This *consumes* a reference count to each of its arguments. */ |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 1830 | static enum why_code |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1831 | do_raise(type, value, tb) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1832 | PyObject *type, *value, *tb; |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1833 | { |
| 1834 | /* We support the following forms of raise: |
| 1835 | raise <class>, <classinstance> |
| 1836 | raise <class>, <argument tuple> |
| 1837 | raise <class>, None |
| 1838 | raise <class>, <argument> |
| 1839 | raise <classinstance>, None |
| 1840 | raise <string>, <object> |
| 1841 | raise <string>, None |
| 1842 | |
| 1843 | An omitted second argument is the same as None. |
| 1844 | |
| 1845 | In addition, raise <tuple>, <anything> is the same as |
| 1846 | raising the tuple's first item (and it better have one!); |
| 1847 | this rule is applied recursively. |
| 1848 | |
| 1849 | Finally, an optional third argument can be supplied, which |
| 1850 | gives the traceback to be substituted (useful when |
| 1851 | re-raising an exception after examining it). */ |
| 1852 | |
| 1853 | /* First, check the traceback argument, replacing None with |
| 1854 | NULL. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1855 | if (tb == Py_None) { |
| 1856 | Py_DECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1857 | tb = NULL; |
| 1858 | } |
| 1859 | else if (tb != NULL && !PyTraceBack_Check(tb)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1860 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1861 | "raise 3rd arg must be traceback or None"); |
| 1862 | goto raise_error; |
| 1863 | } |
| 1864 | |
| 1865 | /* Next, replace a missing value with None */ |
| 1866 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1867 | value = Py_None; |
| 1868 | Py_INCREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1869 | } |
| 1870 | |
| 1871 | /* Next, repeatedly, replace a tuple exception with its first item */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1872 | while (PyTuple_Check(type) && PyTuple_Size(type) > 0) { |
| 1873 | PyObject *tmp = type; |
| 1874 | type = PyTuple_GET_ITEM(type, 0); |
| 1875 | Py_INCREF(type); |
| 1876 | Py_DECREF(tmp); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1877 | } |
| 1878 | |
| 1879 | /* Now switch on the exception's type */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1880 | if (PyString_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1881 | ; |
| 1882 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1883 | else if (PyClass_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1884 | /* Raising a class. If the value is an instance, it |
| 1885 | better be an instance of the class. If it is not, |
| 1886 | it will be used to create an instance. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1887 | if (PyInstance_Check(value)) { |
| 1888 | PyObject *inclass = (PyObject*) |
| 1889 | (((PyInstanceObject*)value)->in_class); |
| 1890 | if (!PyClass_IsSubclass(inclass, type)) { |
| 1891 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1892 | "raise <class>, <instance> requires that <instance> is a member of <class>"); |
| 1893 | goto raise_error; |
| 1894 | } |
| 1895 | } |
| 1896 | else { |
| 1897 | /* Go instantiate the class */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1898 | PyObject *args, *res; |
| 1899 | if (value == Py_None) |
| 1900 | args = Py_BuildValue("()"); |
| 1901 | else if (PyTuple_Check(value)) { |
| 1902 | Py_INCREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1903 | args = value; |
| 1904 | } |
| 1905 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1906 | args = Py_BuildValue("(O)", value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1907 | if (args == NULL) |
| 1908 | goto raise_error; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1909 | res = PyEval_CallObject(type, args); |
| 1910 | Py_DECREF(args); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1911 | if (res == NULL) |
| 1912 | goto raise_error; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1913 | Py_DECREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1914 | value = res; |
| 1915 | } |
| 1916 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1917 | else if (PyInstance_Check(type)) { |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1918 | /* Raising an instance. The value should be a dummy. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1919 | if (value != Py_None) { |
| 1920 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1921 | "instance exception may not have a separate value"); |
| 1922 | goto raise_error; |
| 1923 | } |
| 1924 | else { |
| 1925 | /* Normalize to raise <class>, <instance> */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1926 | Py_DECREF(value); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1927 | value = type; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1928 | type = (PyObject*) ((PyInstanceObject*)type)->in_class; |
| 1929 | Py_INCREF(type); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1930 | } |
| 1931 | } |
| 1932 | else { |
| 1933 | /* Not something you can raise. You get an exception |
| 1934 | anyway, just not what you specified :-) */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1935 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1936 | "exceptions must be strings, classes, or instances"); |
| 1937 | goto raise_error; |
| 1938 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1939 | PyErr_Restore(type, value, tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1940 | if (tb == NULL) |
| 1941 | return WHY_EXCEPTION; |
| 1942 | else |
| 1943 | return WHY_RERAISE; |
| 1944 | raise_error: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1945 | Py_XDECREF(value); |
| 1946 | Py_XDECREF(type); |
| 1947 | Py_XDECREF(tb); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1948 | return WHY_EXCEPTION; |
| 1949 | } |
| 1950 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 1951 | #ifdef LLTRACE |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1952 | static int |
| 1953 | prtrace(v, str) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1954 | PyObject *v; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1955 | char *str; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 1956 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1957 | printf("%s ", str); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1958 | if (PyObject_Print(v, stdout, 0) != 0) |
| 1959 | PyErr_Clear(); /* Don't know what else to do */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1960 | printf("\n"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 1961 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1962 | #endif |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 1963 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1964 | static void |
| 1965 | call_exc_trace(p_trace, p_newtrace, f) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1966 | PyObject **p_trace, **p_newtrace; |
| 1967 | PyFrameObject *f; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1968 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1969 | PyObject *type, *value, *traceback, *arg; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1970 | int err; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1971 | PyErr_Fetch(&type, &value, &traceback); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 1972 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1973 | value = Py_None; |
| 1974 | Py_INCREF(value); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 1975 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1976 | arg = Py_BuildValue("(OOO)", type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1977 | if (arg == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1978 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1979 | return; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1980 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1981 | err = call_trace(p_trace, p_newtrace, f, "exception", arg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1982 | Py_DECREF(arg); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1983 | if (err == 0) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1984 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1985 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1986 | Py_XDECREF(type); |
| 1987 | Py_XDECREF(value); |
| 1988 | Py_XDECREF(traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1989 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1990 | } |
| 1991 | |
| 1992 | static int |
| 1993 | call_trace(p_trace, p_newtrace, f, msg, arg) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1994 | PyObject **p_trace; /* in/out; may not be NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1995 | may not point to NULL variable initially */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1996 | PyObject **p_newtrace; /* in/out; may be NULL; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 1997 | may point to NULL variable; |
| 1998 | may be same variable as p_newtrace */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1999 | PyFrameObject *f; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2000 | char *msg; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2001 | PyObject *arg; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2002 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2003 | PyThreadState *tstate = f->f_tstate; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2004 | PyObject *args, *what; |
| 2005 | PyObject *res = NULL; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2006 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2007 | if (tstate->tracing) { |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2008 | /* Don't do recursive traces */ |
| 2009 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2010 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2011 | *p_newtrace = NULL; |
| 2012 | } |
| 2013 | return 0; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2014 | } |
| 2015 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2016 | args = PyTuple_New(3); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2017 | if (args == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2018 | goto Py_Cleanup; |
| 2019 | what = PyString_FromString(msg); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2020 | if (what == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2021 | goto Py_Cleanup; |
| 2022 | Py_INCREF(f); |
| 2023 | PyTuple_SET_ITEM(args, 0, (PyObject *)f); |
| 2024 | PyTuple_SET_ITEM(args, 1, what); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2025 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2026 | arg = Py_None; |
| 2027 | Py_INCREF(arg); |
| 2028 | PyTuple_SET_ITEM(args, 2, arg); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2029 | tstate->tracing++; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2030 | PyFrame_FastToLocals(f); |
| 2031 | res = PyEval_CallObject(*p_trace, args); /* May clear *p_trace! */ |
| 2032 | PyFrame_LocalsToFast(f, 1); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2033 | tstate->tracing--; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2034 | Py_Cleanup: |
| 2035 | Py_XDECREF(args); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2036 | if (res == NULL) { |
| 2037 | /* The trace proc raised an exception */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2038 | PyTraceBack_Here(f); |
| 2039 | Py_XDECREF(*p_trace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2040 | *p_trace = NULL; |
| 2041 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2042 | Py_XDECREF(*p_newtrace); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2043 | *p_newtrace = NULL; |
| 2044 | } |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2045 | return -1; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2046 | } |
| 2047 | else { |
| 2048 | if (p_newtrace) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2049 | Py_XDECREF(*p_newtrace); |
| 2050 | if (res == Py_None) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2051 | *p_newtrace = NULL; |
| 2052 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2053 | Py_INCREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2054 | *p_newtrace = res; |
| 2055 | } |
| 2056 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2057 | Py_DECREF(res); |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2058 | return 0; |
Guido van Rossum | eee3fd4 | 1992-04-05 14:18:13 +0000 | [diff] [blame] | 2059 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2060 | } |
| 2061 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2062 | PyObject * |
| 2063 | PyEval_GetBuiltins() |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2064 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2065 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2066 | if (current_frame == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2067 | return PyBuiltin_GetModule(); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2068 | else |
| 2069 | return current_frame->f_builtins; |
| 2070 | } |
| 2071 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2072 | PyObject * |
| 2073 | PyEval_GetLocals() |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2074 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2075 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2076 | if (current_frame == NULL) |
| 2077 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2078 | PyFrame_FastToLocals(current_frame); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 2079 | return current_frame->f_locals; |
| 2080 | } |
| 2081 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2082 | PyObject * |
| 2083 | PyEval_GetGlobals() |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2084 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2085 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2086 | if (current_frame == NULL) |
| 2087 | return NULL; |
| 2088 | else |
| 2089 | return current_frame->f_globals; |
| 2090 | } |
| 2091 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2092 | PyObject * |
| 2093 | PyEval_GetFrame() |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2094 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2095 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2096 | return (PyObject *)current_frame; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2097 | } |
| 2098 | |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2099 | int |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2100 | PyEval_GetRestricted() |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2101 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2102 | PyFrameObject *current_frame = PyThreadState_Get()->frame; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 2103 | return current_frame == NULL ? 0 : current_frame->f_restricted; |
| 2104 | } |
| 2105 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2106 | void |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2107 | Py_FlushLine() |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2108 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2109 | PyObject *f = PySys_GetObject("stdout"); |
| 2110 | if (PyFile_SoftSpace(f, 0)) |
| 2111 | PyFile_WriteString("\n", f); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2112 | } |
| 2113 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2114 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2115 | /* XXX Many of the following operator implementations could be |
| 2116 | replaced by calls into the 'abstract' module. */ |
| 2117 | |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2118 | #define BINOP(opname, ropname, thisfunc) \ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2119 | if (!PyInstance_Check(v) && !PyInstance_Check(w)) \ |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2120 | ; \ |
| 2121 | else \ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2122 | return PyInstance_DoBinOp(v, w, opname, ropname, thisfunc) |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 2123 | |
| 2124 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2125 | static PyObject * |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2126 | or(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2127 | PyObject *v, *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2128 | { |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2129 | BINOP("__or__", "__ror__", or); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2130 | if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2131 | PyObject *x = NULL; |
| 2132 | PyObject * (*f) Py_FPROTO((PyObject *, PyObject *)); |
| 2133 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2134 | return NULL; |
| 2135 | if ((f = v->ob_type->tp_as_number->nb_or) != NULL) |
| 2136 | x = (*f)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2137 | Py_DECREF(v); |
| 2138 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2139 | if (f != NULL) |
| 2140 | return x; |
| 2141 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2142 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for |"); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2143 | return NULL; |
| 2144 | } |
| 2145 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2146 | static PyObject * |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2147 | xor(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2148 | PyObject *v, *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2149 | { |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2150 | BINOP("__xor__", "__rxor__", xor); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2151 | if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2152 | PyObject *x = NULL; |
| 2153 | PyObject * (*f) Py_FPROTO((PyObject *, PyObject *)); |
| 2154 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2155 | return NULL; |
| 2156 | if ((f = v->ob_type->tp_as_number->nb_xor) != NULL) |
| 2157 | x = (*f)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2158 | Py_DECREF(v); |
| 2159 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2160 | if (f != NULL) |
| 2161 | return x; |
| 2162 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2163 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for ^"); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2164 | return NULL; |
| 2165 | } |
| 2166 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2167 | static PyObject * |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2168 | and(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2169 | PyObject *v, *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2170 | { |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2171 | BINOP("__and__", "__rand__", and); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2172 | if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2173 | PyObject *x = NULL; |
| 2174 | PyObject * (*f) Py_FPROTO((PyObject *, PyObject *)); |
| 2175 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2176 | return NULL; |
| 2177 | if ((f = v->ob_type->tp_as_number->nb_and) != NULL) |
| 2178 | x = (*f)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2179 | Py_DECREF(v); |
| 2180 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2181 | if (f != NULL) |
| 2182 | return x; |
| 2183 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2184 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for &"); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2185 | return NULL; |
| 2186 | } |
| 2187 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2188 | static PyObject * |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2189 | lshift(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2190 | PyObject *v, *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2191 | { |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2192 | BINOP("__lshift__", "__rlshift__", lshift); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2193 | if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2194 | PyObject *x = NULL; |
| 2195 | PyObject * (*f) Py_FPROTO((PyObject *, PyObject *)); |
| 2196 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2197 | return NULL; |
| 2198 | if ((f = v->ob_type->tp_as_number->nb_lshift) != NULL) |
| 2199 | x = (*f)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2200 | Py_DECREF(v); |
| 2201 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2202 | if (f != NULL) |
| 2203 | return x; |
| 2204 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2205 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for <<"); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2206 | return NULL; |
| 2207 | } |
| 2208 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2209 | static PyObject * |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2210 | rshift(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2211 | PyObject *v, *w; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2212 | { |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2213 | BINOP("__rshift__", "__rrshift__", rshift); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2214 | if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2215 | PyObject *x = NULL; |
| 2216 | PyObject * (*f) Py_FPROTO((PyObject *, PyObject *)); |
| 2217 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2218 | return NULL; |
| 2219 | if ((f = v->ob_type->tp_as_number->nb_rshift) != NULL) |
| 2220 | x = (*f)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2221 | Py_DECREF(v); |
| 2222 | Py_DECREF(w); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2223 | if (f != NULL) |
| 2224 | return x; |
| 2225 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2226 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for >>"); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2227 | return NULL; |
| 2228 | } |
| 2229 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2230 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2231 | add(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2232 | PyObject *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2233 | { |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2234 | BINOP("__add__", "__radd__", add); |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 2235 | if (v->ob_type->tp_as_sequence != NULL) |
| 2236 | return (*v->ob_type->tp_as_sequence->sq_concat)(v, w); |
| 2237 | else if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2238 | PyObject *x; |
| 2239 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2240 | return NULL; |
| 2241 | x = (*v->ob_type->tp_as_number->nb_add)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2242 | Py_DECREF(v); |
| 2243 | Py_DECREF(w); |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2244 | return x; |
| 2245 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2246 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for +"); |
Guido van Rossum | 34679b7 | 1993-01-26 13:33:44 +0000 | [diff] [blame] | 2247 | return NULL; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2248 | } |
| 2249 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2250 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2251 | sub(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2252 | PyObject *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2253 | { |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2254 | BINOP("__sub__", "__rsub__", sub); |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2255 | if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2256 | PyObject *x; |
| 2257 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2258 | return NULL; |
| 2259 | x = (*v->ob_type->tp_as_number->nb_subtract)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2260 | Py_DECREF(v); |
| 2261 | Py_DECREF(w); |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2262 | return x; |
| 2263 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2264 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for -"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2265 | return NULL; |
| 2266 | } |
| 2267 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2268 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2269 | mul(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2270 | PyObject *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2271 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2272 | PyTypeObject *tp; |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 2273 | tp = v->ob_type; |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2274 | BINOP("__mul__", "__rmul__", mul); |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 2275 | if (tp->tp_as_number != NULL && |
| 2276 | w->ob_type->tp_as_sequence != NULL && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2277 | !PyInstance_Check(v)) { |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 2278 | /* number*sequence -- swap v and w */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2279 | PyObject *tmp = v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2280 | v = w; |
| 2281 | w = tmp; |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 2282 | tp = v->ob_type; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2283 | } |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2284 | if (tp->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2285 | PyObject *x; |
| 2286 | if (PyInstance_Check(v)) { |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 2287 | /* Instances of user-defined classes get their |
| 2288 | other argument uncoerced, so they may |
| 2289 | implement sequence*number as well as |
| 2290 | number*number. */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2291 | Py_INCREF(v); |
| 2292 | Py_INCREF(w); |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 2293 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2294 | else if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2295 | return NULL; |
| 2296 | x = (*v->ob_type->tp_as_number->nb_multiply)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2297 | Py_DECREF(v); |
| 2298 | Py_DECREF(w); |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2299 | return x; |
| 2300 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2301 | if (tp->tp_as_sequence != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2302 | if (!PyInt_Check(w)) { |
| 2303 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2304 | "can't multiply sequence with non-int"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2305 | return NULL; |
| 2306 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2307 | return (*tp->tp_as_sequence->sq_repeat) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2308 | (v, (int)PyInt_AsLong(w)); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2309 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2310 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for *"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2311 | return NULL; |
| 2312 | } |
| 2313 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2314 | static PyObject * |
Guido van Rossum | 40d0b7e | 1990-12-20 23:03:11 +0000 | [diff] [blame] | 2315 | divide(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2316 | PyObject *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2317 | { |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2318 | BINOP("__div__", "__rdiv__", divide); |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2319 | if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2320 | PyObject *x; |
| 2321 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2322 | return NULL; |
| 2323 | x = (*v->ob_type->tp_as_number->nb_divide)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2324 | Py_DECREF(v); |
| 2325 | Py_DECREF(w); |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2326 | return x; |
| 2327 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2328 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for /"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2329 | return NULL; |
| 2330 | } |
| 2331 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2332 | static PyObject * |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2333 | mod(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2334 | PyObject *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2335 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2336 | if (PyString_Check(v)) { |
| 2337 | return PyString_Format(v, w); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2338 | } |
Guido van Rossum | 0618651 | 1995-01-07 12:40:10 +0000 | [diff] [blame] | 2339 | BINOP("__mod__", "__rmod__", mod); |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2340 | if (v->ob_type->tp_as_number != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2341 | PyObject *x; |
| 2342 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2343 | return NULL; |
| 2344 | x = (*v->ob_type->tp_as_number->nb_remainder)(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2345 | Py_DECREF(v); |
| 2346 | Py_DECREF(w); |
Guido van Rossum | 89d55ca | 1991-07-01 18:43:13 +0000 | [diff] [blame] | 2347 | return x; |
| 2348 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2349 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for %"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2350 | return NULL; |
| 2351 | } |
| 2352 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2353 | static PyObject * |
Guido van Rossum | 3b4da59 | 1996-06-19 21:49:17 +0000 | [diff] [blame] | 2354 | powerop(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2355 | PyObject *v, *w; |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 2356 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2357 | PyObject *res; |
Guido van Rossum | 3b4da59 | 1996-06-19 21:49:17 +0000 | [diff] [blame] | 2358 | BINOP("__pow__", "__rpow__", powerop); |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 2359 | if (v->ob_type->tp_as_number == NULL || |
| 2360 | w->ob_type->tp_as_number == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2361 | PyErr_SetString(PyExc_TypeError, |
| 2362 | "pow() requires numeric arguments"); |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 2363 | return NULL; |
| 2364 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2365 | if (PyNumber_Coerce(&v, &w) != 0) |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 2366 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2367 | res = (*v->ob_type->tp_as_number->nb_power)(v, w, Py_None); |
| 2368 | Py_DECREF(v); |
| 2369 | Py_DECREF(w); |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 2370 | return res; |
| 2371 | } |
| 2372 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2373 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2374 | neg(v) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2375 | PyObject *v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2376 | { |
| 2377 | if (v->ob_type->tp_as_number != NULL) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2378 | return (*v->ob_type->tp_as_number->nb_negative)(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2379 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary -"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2380 | return NULL; |
| 2381 | } |
| 2382 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2383 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2384 | pos(v) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2385 | PyObject *v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2386 | { |
| 2387 | if (v->ob_type->tp_as_number != NULL) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2388 | return (*v->ob_type->tp_as_number->nb_positive)(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2389 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary +"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2390 | return NULL; |
| 2391 | } |
| 2392 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2393 | static PyObject * |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2394 | invert(v) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2395 | PyObject *v; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2396 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2397 | PyObject * (*f) Py_FPROTO((PyObject *)); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2398 | if (v->ob_type->tp_as_number != NULL && |
| 2399 | (f = v->ob_type->tp_as_number->nb_invert) != NULL) |
| 2400 | return (*f)(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2401 | PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary ~"); |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 2402 | return NULL; |
| 2403 | } |
| 2404 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2405 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2406 | not(v) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2407 | PyObject *v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2408 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2409 | int outcome = PyObject_IsTrue(v); |
| 2410 | PyObject *w; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2411 | if (outcome < 0) |
| 2412 | return NULL; |
| 2413 | if (outcome == 0) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2414 | w = Py_True; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2415 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2416 | w = Py_False; |
| 2417 | Py_INCREF(w); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2418 | return w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2419 | } |
Guido van Rossum | 234f942 | 1993-06-17 12:35:49 +0000 | [diff] [blame] | 2420 | |
| 2421 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2422 | /* External interface to call any callable object. |
| 2423 | The arg must be a tuple or NULL. */ |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2424 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2425 | PyObject * |
| 2426 | PyEval_CallObject(func, arg) |
| 2427 | PyObject *func; |
| 2428 | PyObject *arg; |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2429 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2430 | return PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2431 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2432 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2433 | PyObject * |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2434 | PyEval_CallObjectWithKeywords(func, arg, kw) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2435 | PyObject *func; |
| 2436 | PyObject *arg; |
| 2437 | PyObject *kw; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2438 | { |
| 2439 | ternaryfunc call; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2440 | PyObject *result; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2441 | |
| 2442 | if (arg == NULL) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2443 | arg = PyTuple_New(0); |
| 2444 | else if (!PyTuple_Check(arg)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2445 | PyErr_SetString(PyExc_TypeError, |
| 2446 | "argument list must be a tuple"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2447 | return NULL; |
| 2448 | } |
| 2449 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2450 | Py_INCREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2451 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2452 | if (kw != NULL && !PyDict_Check(kw)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2453 | PyErr_SetString(PyExc_TypeError, |
| 2454 | "keyword list must be a dictionary"); |
Guido van Rossum | e3e61c1 | 1995-08-04 04:14:47 +0000 | [diff] [blame] | 2455 | return NULL; |
| 2456 | } |
| 2457 | |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2458 | if ((call = func->ob_type->tp_call) != NULL) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2459 | result = (*call)(func, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2460 | else if (PyMethod_Check(func) || PyFunction_Check(func)) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2461 | result = call_function(func, arg, kw); |
| 2462 | else |
| 2463 | result = call_builtin(func, arg, kw); |
| 2464 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2465 | Py_DECREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2466 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2467 | if (result == NULL && !PyErr_Occurred()) |
| 2468 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2469 | "NULL result without error in call_object"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2470 | |
| 2471 | return result; |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 2472 | } |
| 2473 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2474 | static PyObject * |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2475 | call_builtin(func, arg, kw) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2476 | PyObject *func; |
| 2477 | PyObject *arg; |
| 2478 | PyObject *kw; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2479 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2480 | if (PyCFunction_Check(func)) { |
| 2481 | PyCFunction meth = PyCFunction_GetFunction(func); |
| 2482 | PyObject *self = PyCFunction_GetSelf(func); |
| 2483 | int flags = PyCFunction_GetFlags(func); |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 2484 | if (!(flags & METH_VARARGS)) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2485 | int size = PyTuple_Size(arg); |
Guido van Rossum | 9c7b861 | 1991-12-16 13:04:47 +0000 | [diff] [blame] | 2486 | if (size == 1) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2487 | arg = PyTuple_GET_ITEM(arg, 0); |
Guido van Rossum | 9c7b861 | 1991-12-16 13:04:47 +0000 | [diff] [blame] | 2488 | else if (size == 0) |
| 2489 | arg = NULL; |
| 2490 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 2491 | if (flags & METH_KEYWORDS) |
| 2492 | return (*(PyCFunctionWithKeywords)meth)(self, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2493 | if (kw != NULL && PyDict_Size(kw) != 0) { |
| 2494 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 2495 | "this function takes no keyword arguments"); |
| 2496 | return NULL; |
| 2497 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2498 | return (*meth)(self, arg); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2499 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2500 | if (PyClass_Check(func)) { |
| 2501 | return PyInstance_New(func, arg, kw); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2502 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2503 | if (PyInstance_Check(func)) { |
| 2504 | PyObject *res, *call = PyObject_GetAttrString(func,"__call__"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2505 | if (call == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2506 | PyErr_Clear(); |
| 2507 | PyErr_SetString(PyExc_AttributeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2508 | "no __call__ method defined"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2509 | return NULL; |
| 2510 | } |
Guido van Rossum | ff8b494 | 1995-07-26 18:16:42 +0000 | [diff] [blame] | 2511 | res = PyEval_CallObjectWithKeywords(call, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2512 | Py_DECREF(call); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2513 | return res; |
| 2514 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2515 | PyErr_SetString(PyExc_TypeError, "call of non-function"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2516 | return NULL; |
| 2517 | } |
| 2518 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2519 | static PyObject * |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2520 | call_function(func, arg, kw) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2521 | PyObject *func; |
| 2522 | PyObject *arg; |
| 2523 | PyObject *kw; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2524 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2525 | PyObject *class = NULL; /* == owner */ |
| 2526 | PyObject *argdefs; |
| 2527 | PyObject **d, **k; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2528 | int nk, nd; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2529 | PyObject *result; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2530 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2531 | if (kw != NULL && !PyDict_Check(kw)) { |
| 2532 | PyErr_BadInternalCall(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2533 | return NULL; |
| 2534 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2535 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2536 | if (PyMethod_Check(func)) { |
| 2537 | PyObject *self = PyMethod_Self(func); |
| 2538 | class = PyMethod_Class(func); |
| 2539 | func = PyMethod_Function(func); |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2540 | if (self == NULL) { |
| 2541 | /* Unbound methods must be called with an instance of |
| 2542 | the class (or a derived class) as first argument */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2543 | if (PyTuple_Size(arg) >= 1) { |
| 2544 | self = PyTuple_GET_ITEM(arg, 0); |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2545 | if (self != NULL && |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2546 | PyInstance_Check(self) && |
| 2547 | PyClass_IsSubclass((PyObject *) |
| 2548 | (((PyInstanceObject *)self)->in_class), |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2549 | class)) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2550 | /* Handy-dandy */ ; |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2551 | else |
| 2552 | self = NULL; |
| 2553 | } |
| 2554 | if (self == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2555 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2556 | "unbound method must be called with class instance 1st argument"); |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2557 | return NULL; |
| 2558 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2559 | Py_INCREF(arg); |
Guido van Rossum | b3f7258 | 1993-05-21 19:56:10 +0000 | [diff] [blame] | 2560 | } |
| 2561 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2562 | int argcount = PyTuple_Size(arg); |
| 2563 | PyObject *newarg = PyTuple_New(argcount + 1); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2564 | int i; |
Guido van Rossum | 81daa32 | 1993-05-20 14:24:46 +0000 | [diff] [blame] | 2565 | if (newarg == NULL) |
| 2566 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2567 | Py_INCREF(self); |
| 2568 | PyTuple_SET_ITEM(newarg, 0, self); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2569 | for (i = 0; i < argcount; i++) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2570 | PyObject *v = PyTuple_GET_ITEM(arg, i); |
| 2571 | Py_XINCREF(v); |
| 2572 | PyTuple_SET_ITEM(newarg, i+1, v); |
Guido van Rossum | 81daa32 | 1993-05-20 14:24:46 +0000 | [diff] [blame] | 2573 | } |
| 2574 | arg = newarg; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2575 | } |
| 2576 | } |
| 2577 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2578 | if (!PyFunction_Check(func)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2579 | PyErr_SetString(PyExc_TypeError, |
| 2580 | "call of non-function"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2581 | return NULL; |
| 2582 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2583 | Py_INCREF(arg); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2584 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2585 | |
| 2586 | argdefs = PyFunction_GetDefaults(func); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2587 | if (argdefs != NULL && PyTuple_Check(argdefs)) { |
| 2588 | d = &PyTuple_GET_ITEM((PyTupleObject *)argdefs, 0); |
| 2589 | nd = PyTuple_Size(argdefs); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2590 | } |
| 2591 | else { |
| 2592 | d = NULL; |
| 2593 | nd = 0; |
| 2594 | } |
| 2595 | |
| 2596 | if (kw != NULL) { |
| 2597 | int pos, i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2598 | nk = PyDict_Size(kw); |
| 2599 | k = PyMem_NEW(PyObject *, 2*nk); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2600 | if (k == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2601 | PyErr_NoMemory(); |
| 2602 | Py_DECREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2603 | return NULL; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2604 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2605 | pos = i = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2606 | while (PyDict_Next(kw, &pos, &k[i], &k[i+1])) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2607 | i += 2; |
| 2608 | nk = i/2; |
| 2609 | /* XXX This is broken if the caller deletes dict items! */ |
| 2610 | } |
| 2611 | else { |
| 2612 | k = NULL; |
| 2613 | nk = 0; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2614 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2615 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2616 | result = eval_code2( |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2617 | (PyCodeObject *)PyFunction_GetCode(func), |
| 2618 | PyFunction_GetGlobals(func), (PyObject *)NULL, |
| 2619 | &PyTuple_GET_ITEM(arg, 0), PyTuple_Size(arg), |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2620 | k, nk, |
| 2621 | d, nd, |
| 2622 | class); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2623 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2624 | Py_DECREF(arg); |
| 2625 | PyMem_XDEL(k); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2626 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2627 | return result; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2628 | } |
| 2629 | |
Guido van Rossum | 3b9c667 | 1996-07-30 18:40:29 +0000 | [diff] [blame] | 2630 | #define SLICE_ERROR_MSG \ |
| 2631 | "standard sequence type does not support step size other than one" |
| 2632 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2633 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2634 | apply_subscript(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2635 | PyObject *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2636 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2637 | PyTypeObject *tp = v->ob_type; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2638 | if (tp->tp_as_sequence == NULL && tp->tp_as_mapping == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2639 | PyErr_SetString(PyExc_TypeError, "unsubscriptable object"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2640 | return NULL; |
| 2641 | } |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2642 | if (tp->tp_as_mapping != NULL) { |
| 2643 | return (*tp->tp_as_mapping->mp_subscript)(v, w); |
| 2644 | } |
| 2645 | else { |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2646 | int i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2647 | if (!PyInt_Check(w)) { |
Guido van Rossum | 3b9c667 | 1996-07-30 18:40:29 +0000 | [diff] [blame] | 2648 | if (PySlice_Check(w)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2649 | PyErr_SetString(PyExc_ValueError, |
| 2650 | SLICE_ERROR_MSG); |
Guido van Rossum | 3b9c667 | 1996-07-30 18:40:29 +0000 | [diff] [blame] | 2651 | } else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2652 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 3b9c667 | 1996-07-30 18:40:29 +0000 | [diff] [blame] | 2653 | "sequence subscript not int"); |
| 2654 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2655 | return NULL; |
| 2656 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2657 | i = PyInt_AsLong(w); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2658 | if (i < 0) { |
| 2659 | int len = (*tp->tp_as_sequence->sq_length)(v); |
| 2660 | if (len < 0) |
| 2661 | return NULL; |
| 2662 | i += len; |
| 2663 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2664 | return (*tp->tp_as_sequence->sq_item)(v, i); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2665 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2666 | } |
| 2667 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2668 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2669 | loop_subscript(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2670 | PyObject *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2671 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2672 | PySequenceMethods *sq = v->ob_type->tp_as_sequence; |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2673 | int i; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2674 | if (sq == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2675 | PyErr_SetString(PyExc_TypeError, "loop over non-sequence"); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2676 | return NULL; |
| 2677 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2678 | i = PyInt_AsLong(w); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2679 | v = (*sq->sq_item)(v, i); |
| 2680 | if (v) |
| 2681 | return v; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2682 | if (PyErr_Occurred() == PyExc_IndexError) |
| 2683 | PyErr_Clear(); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2684 | return NULL; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2685 | } |
| 2686 | |
| 2687 | static int |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2688 | slice_index(v, pi) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2689 | PyObject *v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2690 | int *pi; |
| 2691 | { |
| 2692 | if (v != NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2693 | long x; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2694 | if (!PyInt_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2695 | PyErr_SetString(PyExc_TypeError, |
| 2696 | "slice index must be int"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2697 | return -1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2698 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2699 | x = PyInt_AsLong(v); |
| 2700 | /* Truncate -- very long indices are truncated anyway */ |
| 2701 | if (x > INT_MAX) |
| 2702 | x = INT_MAX; |
| 2703 | else if (x < -INT_MAX) |
| 2704 | x = 0; |
| 2705 | *pi = x; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2706 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2707 | return 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2708 | } |
| 2709 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2710 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2711 | apply_slice(u, v, w) /* return u[v:w] */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2712 | PyObject *u, *v, *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2713 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2714 | int ilow = 0, ihigh = INT_MAX; |
| 2715 | if (slice_index(v, &ilow) != 0) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2716 | return NULL; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2717 | if (slice_index(w, &ihigh) != 0) |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2718 | return NULL; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2719 | return PySequence_GetSlice(u, ilow, ihigh); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2720 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2721 | |
| 2722 | static int |
| 2723 | assign_subscript(w, key, v) /* w[key] = v */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2724 | PyObject *w; |
| 2725 | PyObject *key; |
| 2726 | PyObject *v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2727 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2728 | PyTypeObject *tp = w->ob_type; |
| 2729 | PySequenceMethods *sq; |
| 2730 | PyMappingMethods *mp; |
Guido van Rossum | 1d339e8 | 1995-02-17 15:04:21 +0000 | [diff] [blame] | 2731 | int (*func1)(); |
| 2732 | int (*func2)(); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2733 | if ((mp = tp->tp_as_mapping) != NULL && |
Guido van Rossum | 1d339e8 | 1995-02-17 15:04:21 +0000 | [diff] [blame] | 2734 | (func1 = mp->mp_ass_subscript) != NULL) { |
| 2735 | return (*func1)(w, key, v); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2736 | } |
| 2737 | else if ((sq = tp->tp_as_sequence) != NULL && |
Guido van Rossum | 1d339e8 | 1995-02-17 15:04:21 +0000 | [diff] [blame] | 2738 | (func2 = sq->sq_ass_item) != NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2739 | if (!PyInt_Check(key)) { |
| 2740 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 98256aa | 1991-12-24 13:25:19 +0000 | [diff] [blame] | 2741 | "sequence subscript must be integer (assign or del)"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2742 | return -1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2743 | } |
Guido van Rossum | 98256aa | 1991-12-24 13:25:19 +0000 | [diff] [blame] | 2744 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2745 | int i = PyInt_AsLong(key); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2746 | if (i < 0) { |
| 2747 | int len = (*sq->sq_length)(w); |
| 2748 | if (len < 0) |
| 2749 | return -1; |
| 2750 | i += len; |
| 2751 | } |
Guido van Rossum | 1d339e8 | 1995-02-17 15:04:21 +0000 | [diff] [blame] | 2752 | return (*func2)(w, i, v); |
Guido van Rossum | 98256aa | 1991-12-24 13:25:19 +0000 | [diff] [blame] | 2753 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2754 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2755 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2756 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2757 | "can't assign to this subscripted object"); |
| 2758 | return -1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2759 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2760 | } |
| 2761 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2762 | static int |
| 2763 | assign_slice(u, v, w, x) /* u[v:w] = x */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2764 | PyObject *u, *v, *w, *x; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2765 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2766 | int ilow = 0, ihigh = INT_MAX; |
| 2767 | if (slice_index(v, &ilow) != 0) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2768 | return -1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2769 | if (slice_index(w, &ihigh) != 0) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2770 | return -1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2771 | if (x == NULL) |
| 2772 | return PySequence_DelSlice(u, ilow, ihigh); |
| 2773 | else |
| 2774 | return PySequence_SetSlice(u, ilow, ihigh, x); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2775 | } |
| 2776 | |
| 2777 | static int |
| 2778 | cmp_exception(err, v) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2779 | PyObject *err, *v; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2780 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2781 | if (PyTuple_Check(v)) { |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2782 | int i, n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2783 | n = PyTuple_Size(v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2784 | for (i = 0; i < n; i++) { |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 2785 | /* Test recursively */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2786 | if (cmp_exception(err, PyTuple_GET_ITEM(v, i))) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2787 | return 1; |
| 2788 | } |
| 2789 | return 0; |
| 2790 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2791 | if (PyClass_Check(v) && PyClass_Check(err)) |
| 2792 | return PyClass_IsSubclass(err, v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2793 | return err == v; |
| 2794 | } |
| 2795 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2796 | static int |
| 2797 | cmp_member(v, w) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2798 | PyObject *v, *w; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2799 | { |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2800 | int i, cmp; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2801 | PyObject *x; |
| 2802 | PySequenceMethods *sq; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2803 | /* Special case for char in string */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2804 | if (PyString_Check(w)) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2805 | register char *s, *end; |
| 2806 | register char c; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2807 | if (!PyString_Check(v) || PyString_Size(v) != 1) { |
| 2808 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2809 | "string member test needs char left operand"); |
| 2810 | return -1; |
| 2811 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2812 | c = PyString_AsString(v)[0]; |
| 2813 | s = PyString_AsString(w); |
| 2814 | end = s + PyString_Size(w); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2815 | while (s < end) { |
| 2816 | if (c == *s++) |
| 2817 | return 1; |
| 2818 | } |
| 2819 | return 0; |
| 2820 | } |
| 2821 | sq = w->ob_type->tp_as_sequence; |
| 2822 | if (sq == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2823 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2824 | "'in' or 'not in' needs sequence right argument"); |
| 2825 | return -1; |
| 2826 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2827 | for (i = 0; ; i++) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2828 | x = (*sq->sq_item)(w, i); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2829 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2830 | if (PyErr_Occurred() == PyExc_IndexError) { |
| 2831 | PyErr_Clear(); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 2832 | break; |
| 2833 | } |
| 2834 | return -1; |
| 2835 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2836 | cmp = PyObject_Compare(v, x); |
| 2837 | Py_XDECREF(x); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2838 | if (cmp == 0) |
| 2839 | return 1; |
| 2840 | } |
| 2841 | return 0; |
| 2842 | } |
| 2843 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2844 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2845 | cmp_outcome(op, v, w) |
Guido van Rossum | 5b7313a | 1992-04-06 13:24:57 +0000 | [diff] [blame] | 2846 | int op; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2847 | register PyObject *v; |
| 2848 | register PyObject *w; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2849 | { |
| 2850 | register int cmp; |
| 2851 | register int res = 0; |
| 2852 | switch (op) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2853 | case IS: |
| 2854 | case IS_NOT: |
| 2855 | res = (v == w); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2856 | if (op == (int) IS_NOT) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2857 | res = !res; |
| 2858 | break; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2859 | case IN: |
| 2860 | case NOT_IN: |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2861 | res = cmp_member(v, w); |
| 2862 | if (res < 0) |
| 2863 | return NULL; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2864 | if (op == (int) NOT_IN) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2865 | res = !res; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2866 | break; |
| 2867 | case EXC_MATCH: |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2868 | res = cmp_exception(v, w); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2869 | break; |
| 2870 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2871 | cmp = PyObject_Compare(v, w); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2872 | switch (op) { |
| 2873 | case LT: res = cmp < 0; break; |
| 2874 | case LE: res = cmp <= 0; break; |
| 2875 | case EQ: res = cmp == 0; break; |
| 2876 | case NE: res = cmp != 0; break; |
| 2877 | case GT: res = cmp > 0; break; |
| 2878 | case GE: res = cmp >= 0; break; |
| 2879 | /* XXX no default? (res is initialized to 0 though) */ |
| 2880 | } |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2881 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2882 | v = res ? Py_True : Py_False; |
| 2883 | Py_INCREF(v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 2884 | return v; |
| 2885 | } |
| 2886 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2887 | static int |
| 2888 | import_from(locals, v, name) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2889 | PyObject *locals; |
| 2890 | PyObject *v; |
| 2891 | PyObject *name; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2892 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2893 | PyObject *w, *x; |
| 2894 | if (!PyModule_Check(v)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2895 | PyErr_SetString(PyExc_TypeError, |
| 2896 | "import-from requires module object"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2897 | return -1; |
| 2898 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2899 | w = PyModule_GetDict(v); |
| 2900 | if (PyString_AsString(name)[0] == '*') { |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 2901 | int pos, err; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2902 | PyObject *name, *value; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2903 | pos = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2904 | while (PyDict_Next(w, &pos, &name, &value)) { |
| 2905 | if (!PyString_Check(name) || |
| 2906 | PyString_AsString(name)[0] == '_') |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2907 | continue; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2908 | Py_INCREF(value); |
| 2909 | err = PyDict_SetItem(locals, name, value); |
| 2910 | Py_DECREF(value); |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 2911 | if (err != 0) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2912 | return -1; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2913 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2914 | return 0; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2915 | } |
| 2916 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2917 | x = PyDict_GetItem(w, name); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2918 | if (x == NULL) { |
Guido van Rossum | 98256aa | 1991-12-24 13:25:19 +0000 | [diff] [blame] | 2919 | char buf[250]; |
Guido van Rossum | 16dfd29 | 1992-02-05 11:17:30 +0000 | [diff] [blame] | 2920 | sprintf(buf, "cannot import name %.230s", |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2921 | PyString_AsString(name)); |
| 2922 | PyErr_SetString(PyExc_ImportError, buf); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2923 | return -1; |
| 2924 | } |
| 2925 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2926 | return PyDict_SetItem(locals, name, x); |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2927 | } |
| 2928 | } |
| 2929 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2930 | static PyObject * |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2931 | build_class(methods, bases, name) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2932 | PyObject *methods; /* dictionary */ |
| 2933 | PyObject *bases; /* tuple containing classes */ |
| 2934 | PyObject *name; /* string */ |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2935 | { |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2936 | int i; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2937 | if (!PyTuple_Check(bases)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2938 | PyErr_SetString(PyExc_SystemError, |
| 2939 | "build_class with non-tuple bases"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2940 | return NULL; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2941 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2942 | if (!PyDict_Check(methods)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2943 | PyErr_SetString(PyExc_SystemError, |
| 2944 | "build_class with non-dictionary"); |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 2945 | return NULL; |
| 2946 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2947 | if (!PyString_Check(name)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2948 | PyErr_SetString(PyExc_SystemError, |
| 2949 | "build_class witn non-string name"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2950 | return NULL; |
| 2951 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2952 | for (i = PyTuple_Size(bases); --i >= 0; ) { |
| 2953 | PyObject *base = PyTuple_GET_ITEM(bases, i); |
| 2954 | if (!PyClass_Check(base)) { |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2955 | /* Call the base's *type*, if it is callable. |
| 2956 | This code is a hook for Donald Beaudry's |
| 2957 | and Jim Fulton's type extensions. In |
| 2958 | unexended Python it will never be triggered |
| 2959 | since its types are not callable. */ |
| 2960 | if (base->ob_type->ob_type->tp_call) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2961 | PyObject *args; |
| 2962 | PyObject *class; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2963 | args = Py_BuildValue("(OOO)", |
| 2964 | name, bases, methods); |
| 2965 | class = PyEval_CallObject( |
| 2966 | (PyObject *)base->ob_type, args); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2967 | Py_DECREF(args); |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2968 | return class; |
| 2969 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2970 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2971 | "base is not a class object"); |
| 2972 | return NULL; |
| 2973 | } |
| 2974 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2975 | return PyClass_New(bases, methods, name); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 2976 | } |
| 2977 | |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2978 | static int |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 2979 | exec_statement(f, prog, globals, locals) |
| 2980 | PyFrameObject *f; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2981 | PyObject *prog; |
| 2982 | PyObject *globals; |
| 2983 | PyObject *locals; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2984 | { |
| 2985 | char *s; |
| 2986 | int n; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2987 | PyObject *v; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2988 | int plain = 0; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2989 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2990 | if (PyTuple_Check(prog) && globals == Py_None && locals == Py_None && |
| 2991 | ((n = PyTuple_Size(prog)) == 2 || n == 3)) { |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2992 | /* Backward compatibility hack */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2993 | globals = PyTuple_GetItem(prog, 1); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2994 | if (n == 3) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2995 | locals = PyTuple_GetItem(prog, 2); |
| 2996 | prog = PyTuple_GetItem(prog, 0); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 2997 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2998 | if (globals == Py_None) { |
| 2999 | globals = PyEval_GetGlobals(); |
| 3000 | if (locals == Py_None) { |
| 3001 | locals = PyEval_GetLocals(); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3002 | plain = 1; |
| 3003 | } |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3004 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3005 | else if (locals == Py_None) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3006 | locals = globals; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3007 | if (!PyString_Check(prog) && |
| 3008 | !PyCode_Check(prog) && |
| 3009 | !PyFile_Check(prog)) { |
| 3010 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3011 | "exec 1st arg must be string, code or file object"); |
| 3012 | return -1; |
| 3013 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3014 | if (!PyDict_Check(globals) || !PyDict_Check(locals)) { |
| 3015 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3016 | "exec 2nd/3rd args must be dict or None"); |
| 3017 | return -1; |
| 3018 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3019 | if (PyDict_GetItemString(globals, "__builtins__") == NULL) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 3020 | PyDict_SetItemString(globals, "__builtins__", f->f_builtins); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3021 | if (PyCode_Check(prog)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 3022 | if (PyEval_EvalCode((PyCodeObject *) prog, |
| 3023 | globals, locals) == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3024 | return -1; |
| 3025 | return 0; |
| 3026 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3027 | if (PyFile_Check(prog)) { |
| 3028 | FILE *fp = PyFile_AsFile(prog); |
| 3029 | char *name = PyString_AsString(PyFile_Name(prog)); |
| 3030 | if (PyRun_File(fp, name, file_input, globals, locals) == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3031 | return -1; |
| 3032 | return 0; |
| 3033 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3034 | s = PyString_AsString(prog); |
| 3035 | if (strlen(s) != PyString_Size(prog)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 3036 | PyErr_SetString(PyExc_ValueError, |
| 3037 | "embedded '\\0' in exec string"); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3038 | return -1; |
| 3039 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3040 | v = PyRun_String(s, file_input, globals, locals); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3041 | if (v == NULL) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3042 | return -1; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3043 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3044 | if (plain) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame^] | 3045 | PyFrame_LocalsToFast(f, 0); |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 3046 | return 0; |
| 3047 | } |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3048 | |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 3049 | /* Hack for ni.py */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3050 | static PyObject * |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3051 | find_from_args(f, nexti) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3052 | PyFrameObject *f; |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3053 | int nexti; |
| 3054 | { |
| 3055 | int opcode; |
| 3056 | int oparg; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3057 | PyObject *list, *name; |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3058 | unsigned char *next_instr; |
| 3059 | |
| 3060 | next_instr = GETUSTRINGVALUE(f->f_code->co_code) + nexti; |
| 3061 | opcode = (*next_instr++); |
| 3062 | if (opcode != IMPORT_FROM) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3063 | Py_INCREF(Py_None); |
| 3064 | return Py_None; |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3065 | } |
| 3066 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3067 | list = PyList_New(0); |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3068 | if (list == NULL) |
| 3069 | return NULL; |
| 3070 | |
| 3071 | do { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3072 | oparg = (next_instr[1]<<8) + next_instr[0]; |
| 3073 | next_instr += 2; |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3074 | name = Getnamev(f, oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3075 | if (PyList_Append(list, name) < 0) { |
| 3076 | Py_DECREF(list); |
Guido van Rossum | 24c1374 | 1995-02-14 09:42:43 +0000 | [diff] [blame] | 3077 | break; |
| 3078 | } |
| 3079 | opcode = (*next_instr++); |
| 3080 | } while (opcode == IMPORT_FROM); |
| 3081 | |
| 3082 | return list; |
| 3083 | } |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3084 | |
| 3085 | |
| 3086 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 3087 | |
| 3088 | PyObject * |
| 3089 | getarray(a) |
| 3090 | long a[256]; |
| 3091 | { |
| 3092 | int i; |
| 3093 | PyObject *l = PyList_New(256); |
| 3094 | if (l == NULL) return NULL; |
| 3095 | for (i = 0; i < 256; i++) { |
| 3096 | PyObject *x = PyInt_FromLong(a[i]); |
| 3097 | if (x == NULL) { |
| 3098 | Py_DECREF(l); |
| 3099 | return NULL; |
| 3100 | } |
| 3101 | PyList_SetItem(l, i, x); |
| 3102 | } |
| 3103 | for (i = 0; i < 256; i++) |
| 3104 | a[i] = 0; |
| 3105 | return l; |
| 3106 | } |
| 3107 | |
| 3108 | PyObject * |
| 3109 | _Py_GetDXProfile(self, args) |
| 3110 | PyObject *self, *args; |
| 3111 | { |
| 3112 | #ifndef DXPAIRS |
| 3113 | return getarray(dxp); |
| 3114 | #else |
| 3115 | int i; |
| 3116 | PyObject *l = PyList_New(257); |
| 3117 | if (l == NULL) return NULL; |
| 3118 | for (i = 0; i < 257; i++) { |
| 3119 | PyObject *x = getarray(dxpairs[i]); |
| 3120 | if (x == NULL) { |
| 3121 | Py_DECREF(l); |
| 3122 | return NULL; |
| 3123 | } |
| 3124 | PyList_SetItem(l, i, x); |
| 3125 | } |
| 3126 | return l; |
| 3127 | #endif |
| 3128 | } |
| 3129 | |
| 3130 | #endif |