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