Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 2 | /* Execute compiled code */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 4 | /* XXX TO DO: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 5 | XXX speed up searching for keywords by using a dictionary |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 6 | XXX document it! |
| 7 | */ |
| 8 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 9 | /* enable more aggressive intra-module optimizations, where available */ |
| 10 | #define PY_LOCAL_AGGRESSIVE |
| 11 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 12 | #include "Python.h" |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 13 | |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 14 | #include "code.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 15 | #include "frameobject.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 16 | #include "eval.h" |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 17 | #include "opcode.h" |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 18 | #include "structmember.h" |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 19 | |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 20 | #include <ctype.h> |
| 21 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 22 | #ifndef WITH_TSC |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 23 | |
| 24 | #define READ_TIMESTAMP(var) |
| 25 | |
| 26 | #else |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 27 | |
| 28 | typedef unsigned long long uint64; |
| 29 | |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 30 | #if defined(__ppc__) /* <- Don't know if this is the correct symbol; this |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 31 | section should work for GCC on any PowerPC |
| 32 | platform, irrespective of OS. |
| 33 | POWER? Who knows :-) */ |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 34 | |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 35 | #define READ_TIMESTAMP(var) ppc_getcounter(&var) |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 36 | |
| 37 | static void |
| 38 | ppc_getcounter(uint64 *v) |
| 39 | { |
| 40 | register unsigned long tbu, tb, tbu2; |
| 41 | |
| 42 | loop: |
| 43 | asm volatile ("mftbu %0" : "=r" (tbu) ); |
| 44 | asm volatile ("mftb %0" : "=r" (tb) ); |
| 45 | asm volatile ("mftbu %0" : "=r" (tbu2)); |
| 46 | if (__builtin_expect(tbu != tbu2, 0)) goto loop; |
| 47 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 48 | /* The slightly peculiar way of writing the next lines is |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 49 | compiled better by GCC than any other way I tried. */ |
| 50 | ((long*)(v))[0] = tbu; |
| 51 | ((long*)(v))[1] = tb; |
| 52 | } |
| 53 | |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 54 | #else /* this is for linux/x86 (and probably any other GCC/x86 combo) */ |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 55 | |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 56 | #define READ_TIMESTAMP(val) \ |
| 57 | __asm__ __volatile__("rdtsc" : "=A" (val)) |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 58 | |
| 59 | #endif |
| 60 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 61 | void dump_tsc(int opcode, int ticked, uint64 inst0, uint64 inst1, |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 62 | uint64 loop0, uint64 loop1, uint64 intr0, uint64 intr1) |
| 63 | { |
| 64 | uint64 intr, inst, loop; |
| 65 | PyThreadState *tstate = PyThreadState_Get(); |
| 66 | if (!tstate->interp->tscdump) |
| 67 | return; |
| 68 | intr = intr1 - intr0; |
| 69 | inst = inst1 - inst0 - intr; |
| 70 | loop = loop1 - loop0 - intr; |
| 71 | fprintf(stderr, "opcode=%03d t=%d inst=%06lld loop=%06lld\n", |
| 72 | opcode, ticked, inst, loop); |
| 73 | } |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 74 | |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 75 | #endif |
| 76 | |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 77 | /* Turn this on if your compiler chokes on the big switch: */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 78 | /* #define CASE_TOO_BIG 1 */ |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 79 | |
Guido van Rossum | 408027e | 1996-12-30 16:17:54 +0000 | [diff] [blame] | 80 | #ifdef Py_DEBUG |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 81 | /* For debugging the interpreter: */ |
| 82 | #define LLTRACE 1 /* Low-level trace feature */ |
| 83 | #define CHECKEXC 1 /* Double-check exception checking */ |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 84 | #endif |
| 85 | |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 86 | typedef PyObject *(*callproc)(PyObject *, PyObject *, PyObject *); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 87 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 88 | /* Forward declarations */ |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 89 | #ifdef WITH_TSC |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 90 | static PyObject * call_function(PyObject ***, int, uint64*, uint64*); |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 91 | #else |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 92 | static PyObject * call_function(PyObject ***, int); |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 93 | #endif |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 94 | static PyObject * fast_function(PyObject *, PyObject ***, int, int, int); |
| 95 | static PyObject * do_call(PyObject *, PyObject ***, int, int); |
| 96 | static PyObject * ext_do_call(PyObject *, PyObject ***, int, int, int); |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 97 | static PyObject * update_keyword_args(PyObject *, int, PyObject ***, |
| 98 | PyObject *); |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 99 | static PyObject * update_star_args(int, int, PyObject *, PyObject ***); |
| 100 | static PyObject * load_args(PyObject ***, int); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 101 | #define CALL_FLAG_VAR 1 |
| 102 | #define CALL_FLAG_KW 2 |
| 103 | |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 104 | #ifdef LLTRACE |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 105 | static int lltrace; |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 106 | static int prtrace(PyObject *, char *); |
Guido van Rossum | 0a066c0 | 1992-03-27 17:29:15 +0000 | [diff] [blame] | 107 | #endif |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 108 | static int call_trace(Py_tracefunc, PyObject *, PyFrameObject *, |
| 109 | int, PyObject *); |
Fred Drake | 4ec5d56 | 2001-10-04 19:26:43 +0000 | [diff] [blame] | 110 | static void call_trace_protected(Py_tracefunc, PyObject *, |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 111 | PyFrameObject *, int, PyObject *); |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 112 | static void call_exc_trace(Py_tracefunc, PyObject *, PyFrameObject *); |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 113 | static int maybe_call_line_trace(Py_tracefunc, PyObject *, |
Armin Rigo | bf57a14 | 2004-03-22 19:24:58 +0000 | [diff] [blame] | 114 | PyFrameObject *, int *, int *, int *); |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 115 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 116 | static PyObject * cmp_outcome(int, PyObject *, PyObject *); |
| 117 | static PyObject * import_from(PyObject *, PyObject *); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 118 | static int import_all_from(PyObject *, PyObject *); |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 119 | static void set_exc_info(PyThreadState *, PyObject *, PyObject *, PyObject *); |
| 120 | static void reset_exc_info(PyThreadState *); |
Neal Norwitz | da059e3 | 2007-08-26 05:33:45 +0000 | [diff] [blame] | 121 | static void format_exc_check_arg(PyObject *, const char *, PyObject *); |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 122 | static PyObject * string_concatenate(PyObject *, PyObject *, |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 123 | PyFrameObject *, unsigned char *); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 124 | |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 125 | #define NAME_ERROR_MSG \ |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 126 | "name '%.200s' is not defined" |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 127 | #define GLOBAL_NAME_ERROR_MSG \ |
| 128 | "global name '%.200s' is not defined" |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 129 | #define UNBOUNDLOCAL_ERROR_MSG \ |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 130 | "local variable '%.200s' referenced before assignment" |
Jeremy Hylton | c76770c | 2001-04-13 16:51:46 +0000 | [diff] [blame] | 131 | #define UNBOUNDFREE_ERROR_MSG \ |
| 132 | "free variable '%.200s' referenced before assignment" \ |
| 133 | " in enclosing scope" |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 134 | |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 135 | /* Dynamic execution profile */ |
| 136 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 137 | #ifdef DXPAIRS |
| 138 | static long dxpairs[257][256]; |
| 139 | #define dxp dxpairs[256] |
| 140 | #else |
| 141 | static long dxp[256]; |
| 142 | #endif |
| 143 | #endif |
| 144 | |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 145 | /* Function call profile */ |
| 146 | #ifdef CALL_PROFILE |
| 147 | #define PCALL_NUM 11 |
| 148 | static int pcall[PCALL_NUM]; |
| 149 | |
| 150 | #define PCALL_ALL 0 |
| 151 | #define PCALL_FUNCTION 1 |
| 152 | #define PCALL_FAST_FUNCTION 2 |
| 153 | #define PCALL_FASTER_FUNCTION 3 |
| 154 | #define PCALL_METHOD 4 |
| 155 | #define PCALL_BOUND_METHOD 5 |
| 156 | #define PCALL_CFUNCTION 6 |
| 157 | #define PCALL_TYPE 7 |
| 158 | #define PCALL_GENERATOR 8 |
| 159 | #define PCALL_OTHER 9 |
| 160 | #define PCALL_POP 10 |
| 161 | |
| 162 | /* Notes about the statistics |
| 163 | |
| 164 | PCALL_FAST stats |
| 165 | |
| 166 | FAST_FUNCTION means no argument tuple needs to be created. |
| 167 | FASTER_FUNCTION means that the fast-path frame setup code is used. |
| 168 | |
| 169 | If there is a method call where the call can be optimized by changing |
| 170 | the argument tuple and calling the function directly, it gets recorded |
| 171 | twice. |
| 172 | |
| 173 | As a result, the relationship among the statistics appears to be |
| 174 | PCALL_ALL == PCALL_FUNCTION + PCALL_METHOD - PCALL_BOUND_METHOD + |
| 175 | PCALL_CFUNCTION + PCALL_TYPE + PCALL_GENERATOR + PCALL_OTHER |
| 176 | PCALL_FUNCTION > PCALL_FAST_FUNCTION > PCALL_FASTER_FUNCTION |
| 177 | PCALL_METHOD > PCALL_BOUND_METHOD |
| 178 | */ |
| 179 | |
| 180 | #define PCALL(POS) pcall[POS]++ |
| 181 | |
| 182 | PyObject * |
| 183 | PyEval_GetCallStats(PyObject *self) |
| 184 | { |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 185 | return Py_BuildValue("iiiiiiiiiii", |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 186 | pcall[0], pcall[1], pcall[2], pcall[3], |
| 187 | pcall[4], pcall[5], pcall[6], pcall[7], |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 188 | pcall[8], pcall[9], pcall[10]); |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 189 | } |
| 190 | #else |
| 191 | #define PCALL(O) |
| 192 | |
| 193 | PyObject * |
| 194 | PyEval_GetCallStats(PyObject *self) |
| 195 | { |
| 196 | Py_INCREF(Py_None); |
| 197 | return Py_None; |
| 198 | } |
| 199 | #endif |
| 200 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 201 | |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 202 | #ifdef WITH_THREAD |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 203 | |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 204 | #ifdef HAVE_ERRNO_H |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 205 | #include <errno.h> |
Guido van Rossum | 2571cc8 | 1999-04-07 16:07:23 +0000 | [diff] [blame] | 206 | #endif |
Guido van Rossum | 49b5606 | 1998-10-01 20:42:43 +0000 | [diff] [blame] | 207 | #include "pythread.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 208 | |
Guido van Rossum | b8b6d0c | 2003-06-28 21:53:52 +0000 | [diff] [blame] | 209 | static PyThread_type_lock interpreter_lock = 0; /* This is the GIL */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 210 | static long main_thread = 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 211 | |
Tim Peters | 7f468f2 | 2004-10-11 02:40:51 +0000 | [diff] [blame] | 212 | int |
| 213 | PyEval_ThreadsInitialized(void) |
| 214 | { |
| 215 | return interpreter_lock != 0; |
| 216 | } |
| 217 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 218 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 219 | PyEval_InitThreads(void) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 220 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 221 | if (interpreter_lock) |
Sjoerd Mullender | ed59d20 | 1993-01-06 13:36:38 +0000 | [diff] [blame] | 222 | return; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 223 | interpreter_lock = PyThread_allocate_lock(); |
| 224 | PyThread_acquire_lock(interpreter_lock, 1); |
| 225 | main_thread = PyThread_get_thread_ident(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 226 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 227 | |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 228 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 229 | PyEval_AcquireLock(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 230 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 231 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 235 | PyEval_ReleaseLock(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 236 | { |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 237 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 238 | } |
| 239 | |
| 240 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 241 | PyEval_AcquireThread(PyThreadState *tstate) |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 242 | { |
| 243 | if (tstate == NULL) |
| 244 | Py_FatalError("PyEval_AcquireThread: NULL new thread state"); |
Mark Hammond | 8d98d2c | 2003-04-19 15:41:53 +0000 | [diff] [blame] | 245 | /* Check someone has called PyEval_InitThreads() to create the lock */ |
| 246 | assert(interpreter_lock); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 247 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 248 | if (PyThreadState_Swap(tstate) != NULL) |
| 249 | Py_FatalError( |
| 250 | "PyEval_AcquireThread: non-NULL old thread state"); |
| 251 | } |
| 252 | |
| 253 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 254 | PyEval_ReleaseThread(PyThreadState *tstate) |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 255 | { |
| 256 | if (tstate == NULL) |
| 257 | Py_FatalError("PyEval_ReleaseThread: NULL thread state"); |
| 258 | if (PyThreadState_Swap(NULL) != tstate) |
| 259 | Py_FatalError("PyEval_ReleaseThread: wrong thread state"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 260 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 9cc8a20 | 1997-07-19 19:55:50 +0000 | [diff] [blame] | 261 | } |
Guido van Rossum | fee3a2d | 2000-08-27 17:34:07 +0000 | [diff] [blame] | 262 | |
| 263 | /* This function is called from PyOS_AfterFork to ensure that newly |
| 264 | created child processes don't hold locks referring to threads which |
| 265 | are not running in the child process. (This could also be done using |
| 266 | pthread_atfork mechanism, at least for the pthreads implementation.) */ |
| 267 | |
| 268 | void |
| 269 | PyEval_ReInitThreads(void) |
| 270 | { |
| 271 | if (!interpreter_lock) |
| 272 | return; |
| 273 | /*XXX Can't use PyThread_free_lock here because it does too |
| 274 | much error-checking. Doing this cleanly would require |
| 275 | adding a new function to each thread_*.h. Instead, just |
| 276 | create a new lock and waste a little bit of memory */ |
| 277 | interpreter_lock = PyThread_allocate_lock(); |
| 278 | PyThread_acquire_lock(interpreter_lock, 1); |
| 279 | main_thread = PyThread_get_thread_ident(); |
| 280 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 281 | #endif |
| 282 | |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 283 | /* Functions save_thread and restore_thread are always defined so |
| 284 | dynamically loaded modules needn't be compiled separately for use |
| 285 | with and without threads: */ |
| 286 | |
Guido van Rossum | 2fca21f7 | 1997-07-18 23:56:58 +0000 | [diff] [blame] | 287 | PyThreadState * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 288 | PyEval_SaveThread(void) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 289 | { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 290 | PyThreadState *tstate = PyThreadState_Swap(NULL); |
| 291 | if (tstate == NULL) |
| 292 | Py_FatalError("PyEval_SaveThread: NULL tstate"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 293 | #ifdef WITH_THREAD |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 294 | if (interpreter_lock) |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 295 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 296 | #endif |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 297 | return tstate; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 301 | PyEval_RestoreThread(PyThreadState *tstate) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 302 | { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 303 | if (tstate == NULL) |
| 304 | Py_FatalError("PyEval_RestoreThread: NULL tstate"); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 305 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 306 | if (interpreter_lock) { |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 307 | int err = errno; |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 308 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 309 | errno = err; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 310 | } |
| 311 | #endif |
Guido van Rossum | b74eca9 | 1997-09-30 22:03:16 +0000 | [diff] [blame] | 312 | PyThreadState_Swap(tstate); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 316 | /* Mechanism whereby asynchronously executing callbacks (e.g. UNIX |
| 317 | signal handlers or Mac I/O completion routines) can schedule calls |
| 318 | to a function to be called synchronously. |
| 319 | The synchronous function is called with one void* argument. |
| 320 | It should return 0 for success or -1 for failure -- failure should |
| 321 | be accompanied by an exception. |
| 322 | |
| 323 | If registry succeeds, the registry function returns 0; if it fails |
| 324 | (e.g. due to too many pending calls) it returns -1 (without setting |
| 325 | an exception condition). |
| 326 | |
| 327 | Note that because registry may occur from within signal handlers, |
| 328 | or other asynchronous events, calling malloc() is unsafe! |
| 329 | |
| 330 | #ifdef WITH_THREAD |
| 331 | Any thread can schedule pending calls, but only the main thread |
| 332 | will execute them. |
| 333 | #endif |
| 334 | |
| 335 | XXX WARNING! ASYNCHRONOUSLY EXECUTING CODE! |
| 336 | There are two possible race conditions: |
| 337 | (1) nested asynchronous registry calls; |
| 338 | (2) registry calls made while pending calls are being processed. |
| 339 | While (1) is very unlikely, (2) is a real possibility. |
| 340 | The current code is safe against (2), but not against (1). |
| 341 | The safety against (2) is derived from the fact that only one |
| 342 | thread (the main thread) ever takes things out of the queue. |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 343 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 344 | XXX Darn! With the advent of thread state, we should have an array |
| 345 | of pending calls per thread in the thread state! Later... |
| 346 | */ |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 347 | |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 348 | #define NPENDINGCALLS 32 |
| 349 | static struct { |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 350 | int (*func)(void *); |
| 351 | void *arg; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 352 | } pendingcalls[NPENDINGCALLS]; |
| 353 | static volatile int pendingfirst = 0; |
| 354 | static volatile int pendinglast = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 355 | static volatile int things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 356 | |
| 357 | int |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 358 | Py_AddPendingCall(int (*func)(void *), void *arg) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 359 | { |
Michael W. Hudson | 30ea2f2 | 2004-07-07 17:44:12 +0000 | [diff] [blame] | 360 | static volatile int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 361 | int i, j; |
| 362 | /* XXX Begin critical section */ |
| 363 | /* XXX If you want this to be safe against nested |
| 364 | XXX asynchronous calls, you'll have to work harder! */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 365 | if (busy) |
| 366 | return -1; |
| 367 | busy = 1; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 368 | i = pendinglast; |
| 369 | j = (i + 1) % NPENDINGCALLS; |
Guido van Rossum | 04e7032 | 2002-07-17 16:57:13 +0000 | [diff] [blame] | 370 | if (j == pendingfirst) { |
| 371 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 372 | return -1; /* Queue full */ |
Guido van Rossum | 04e7032 | 2002-07-17 16:57:13 +0000 | [diff] [blame] | 373 | } |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 374 | pendingcalls[i].func = func; |
| 375 | pendingcalls[i].arg = arg; |
| 376 | pendinglast = j; |
Skip Montanaro | d581d77 | 2002-09-03 20:10:45 +0000 | [diff] [blame] | 377 | |
| 378 | _Py_Ticker = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 379 | things_to_do = 1; /* Signal main loop */ |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 380 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 381 | /* XXX End critical section */ |
| 382 | return 0; |
| 383 | } |
| 384 | |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 385 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 386 | Py_MakePendingCalls(void) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 387 | { |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 388 | static int busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 389 | #ifdef WITH_THREAD |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 390 | if (main_thread && PyThread_get_thread_ident() != main_thread) |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 391 | return 0; |
| 392 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 393 | if (busy) |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 394 | return 0; |
| 395 | busy = 1; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 396 | things_to_do = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 397 | for (;;) { |
| 398 | int i; |
Thomas Wouters | 334fb89 | 2000-07-25 12:56:38 +0000 | [diff] [blame] | 399 | int (*func)(void *); |
| 400 | void *arg; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 401 | i = pendingfirst; |
| 402 | if (i == pendinglast) |
| 403 | break; /* Queue empty */ |
| 404 | func = pendingcalls[i].func; |
| 405 | arg = pendingcalls[i].arg; |
| 406 | pendingfirst = (i + 1) % NPENDINGCALLS; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 407 | if (func(arg) < 0) { |
| 408 | busy = 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 409 | things_to_do = 1; /* We're not done yet */ |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 410 | return -1; |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 411 | } |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 412 | } |
Guido van Rossum | 180d7b4 | 1994-09-29 09:45:57 +0000 | [diff] [blame] | 413 | busy = 0; |
Guido van Rossum | a967209 | 1994-09-14 13:31:22 +0000 | [diff] [blame] | 414 | return 0; |
| 415 | } |
| 416 | |
| 417 | |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 418 | /* The interpreter's recursion limit */ |
| 419 | |
Hye-Shik Chang | b6fa281 | 2005-04-04 15:49:02 +0000 | [diff] [blame] | 420 | #ifndef Py_DEFAULT_RECURSION_LIMIT |
| 421 | #define Py_DEFAULT_RECURSION_LIMIT 1000 |
| 422 | #endif |
| 423 | static int recursion_limit = Py_DEFAULT_RECURSION_LIMIT; |
| 424 | int _Py_CheckRecursionLimit = Py_DEFAULT_RECURSION_LIMIT; |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 425 | |
Vladimir Marangozov | 7bd25be | 2000-09-01 11:07:19 +0000 | [diff] [blame] | 426 | int |
| 427 | Py_GetRecursionLimit(void) |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 428 | { |
| 429 | return recursion_limit; |
| 430 | } |
| 431 | |
Vladimir Marangozov | 7bd25be | 2000-09-01 11:07:19 +0000 | [diff] [blame] | 432 | void |
| 433 | Py_SetRecursionLimit(int new_limit) |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 434 | { |
| 435 | recursion_limit = new_limit; |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 436 | _Py_CheckRecursionLimit = recursion_limit; |
Jeremy Hylton | ee5adfb | 2000-08-31 19:23:01 +0000 | [diff] [blame] | 437 | } |
| 438 | |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 439 | /* the macro Py_EnterRecursiveCall() only calls _Py_CheckRecursiveCall() |
| 440 | if the recursion_depth reaches _Py_CheckRecursionLimit. |
| 441 | If USE_STACKCHECK, the macro decrements _Py_CheckRecursionLimit |
| 442 | to guarantee that _Py_CheckRecursiveCall() is regularly called. |
| 443 | Without USE_STACKCHECK, there is no need for this. */ |
| 444 | int |
| 445 | _Py_CheckRecursiveCall(char *where) |
| 446 | { |
| 447 | PyThreadState *tstate = PyThreadState_GET(); |
| 448 | |
| 449 | #ifdef USE_STACKCHECK |
| 450 | if (PyOS_CheckStack()) { |
| 451 | --tstate->recursion_depth; |
| 452 | PyErr_SetString(PyExc_MemoryError, "Stack overflow"); |
| 453 | return -1; |
| 454 | } |
| 455 | #endif |
Martin v. Löwis | 5b22213 | 2007-06-10 09:51:05 +0000 | [diff] [blame] | 456 | if (tstate->recursion_critical) |
| 457 | /* Somebody asked that we don't check for recursion. */ |
| 458 | return 0; |
| 459 | if (tstate->overflowed) { |
| 460 | if (tstate->recursion_depth > recursion_limit + 50) { |
| 461 | /* Overflowing while handling an overflow. Give up. */ |
| 462 | Py_FatalError("Cannot recover from stack overflow."); |
| 463 | } |
| 464 | return 0; |
| 465 | } |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 466 | if (tstate->recursion_depth > recursion_limit) { |
| 467 | --tstate->recursion_depth; |
Martin v. Löwis | 5b22213 | 2007-06-10 09:51:05 +0000 | [diff] [blame] | 468 | tstate->overflowed = 1; |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 469 | PyErr_Format(PyExc_RuntimeError, |
| 470 | "maximum recursion depth exceeded%s", |
| 471 | where); |
| 472 | return -1; |
| 473 | } |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 474 | _Py_CheckRecursionLimit = recursion_limit; |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 475 | return 0; |
| 476 | } |
| 477 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 478 | /* Status code for main loop (reason for stack unwind) */ |
Raymond Hettinger | 7c95865 | 2004-04-06 10:11:10 +0000 | [diff] [blame] | 479 | enum why_code { |
| 480 | WHY_NOT = 0x0001, /* No error */ |
| 481 | WHY_EXCEPTION = 0x0002, /* Exception occurred */ |
| 482 | WHY_RERAISE = 0x0004, /* Exception re-raised by 'finally' */ |
| 483 | WHY_RETURN = 0x0008, /* 'return' statement */ |
| 484 | WHY_BREAK = 0x0010, /* 'break' statement */ |
| 485 | WHY_CONTINUE = 0x0020, /* 'continue' statement */ |
| 486 | WHY_YIELD = 0x0040 /* 'yield' operator */ |
| 487 | }; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 488 | |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 489 | static enum why_code do_raise(PyObject *, PyObject *); |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 490 | static int unpack_iterable(PyObject *, int, int, PyObject **); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 491 | |
Skip Montanaro | d581d77 | 2002-09-03 20:10:45 +0000 | [diff] [blame] | 492 | /* for manipulating the thread switch and periodic "stuff" - used to be |
| 493 | per thread, now just a pair o' globals */ |
Skip Montanaro | 99dba27 | 2002-09-03 20:19:06 +0000 | [diff] [blame] | 494 | int _Py_CheckInterval = 100; |
| 495 | volatile int _Py_Ticker = 100; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 496 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 497 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 498 | PyEval_EvalCode(PyCodeObject *co, PyObject *globals, PyObject *locals) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 499 | { |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 500 | return PyEval_EvalCodeEx(co, |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 501 | globals, locals, |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 502 | (PyObject **)NULL, 0, |
| 503 | (PyObject **)NULL, 0, |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 504 | (PyObject **)NULL, 0, |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 505 | NULL, NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 506 | } |
| 507 | |
| 508 | |
| 509 | /* Interpreter main loop */ |
| 510 | |
Martin v. Löwis | 8d97e33 | 2004-06-27 15:43:12 +0000 | [diff] [blame] | 511 | PyObject * |
Phillip J. Eby | 0d6615f | 2005-08-02 00:46:46 +0000 | [diff] [blame] | 512 | PyEval_EvalFrame(PyFrameObject *f) { |
| 513 | /* This is for backward compatibility with extension modules that |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 514 | used this API; core interpreter code should call |
| 515 | PyEval_EvalFrameEx() */ |
Phillip J. Eby | 0d6615f | 2005-08-02 00:46:46 +0000 | [diff] [blame] | 516 | return PyEval_EvalFrameEx(f, 0); |
| 517 | } |
| 518 | |
| 519 | PyObject * |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 520 | PyEval_EvalFrameEx(PyFrameObject *f, int throwflag) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 521 | { |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 522 | #ifdef DXPAIRS |
| 523 | int lastopcode = 0; |
| 524 | #endif |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 525 | register PyObject **stack_pointer; /* Next free slot in value stack */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 526 | register unsigned char *next_instr; |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 527 | register int opcode; /* Current opcode */ |
| 528 | register int oparg; /* Current opcode argument, if any */ |
Raymond Hettinger | 7c95865 | 2004-04-06 10:11:10 +0000 | [diff] [blame] | 529 | register enum why_code why; /* Reason for block stack unwind */ |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 530 | register int err; /* Error status -- nonzero if error */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 531 | register PyObject *x; /* Result object -- NULL if error */ |
| 532 | register PyObject *v; /* Temporary objects popped off stack */ |
| 533 | register PyObject *w; |
| 534 | register PyObject *u; |
| 535 | register PyObject *t; |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 536 | register PyObject **fastlocals, **freevars; |
Guido van Rossum | 014518f | 1998-11-23 21:09:51 +0000 | [diff] [blame] | 537 | PyObject *retval = NULL; /* Return value */ |
Guido van Rossum | 885553e | 1998-12-21 18:33:30 +0000 | [diff] [blame] | 538 | PyThreadState *tstate = PyThreadState_GET(); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 539 | PyCodeObject *co; |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 540 | |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 541 | /* when tracing we set things up so that |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 542 | |
| 543 | not (instr_lb <= current_bytecode_offset < instr_ub) |
| 544 | |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 545 | is true when the line being executed has changed. The |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 546 | initial values are such as to make this false the first |
| 547 | time it is tested. */ |
Armin Rigo | bf57a14 | 2004-03-22 19:24:58 +0000 | [diff] [blame] | 548 | int instr_ub = -1, instr_lb = 0, instr_prev = -1; |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 549 | |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 550 | unsigned char *first_instr; |
Skip Montanaro | 04d80f8 | 2002-08-04 21:03:35 +0000 | [diff] [blame] | 551 | PyObject *names; |
| 552 | PyObject *consts; |
Neal Norwitz | 5f5153e | 2005-10-21 04:28:38 +0000 | [diff] [blame] | 553 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 554 | /* Make it easier to find out where we are with a debugger */ |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 555 | char *filename; |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 556 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 557 | |
Neal Norwitz | a81d220 | 2002-07-14 00:27:26 +0000 | [diff] [blame] | 558 | /* Tuple access macros */ |
| 559 | |
| 560 | #ifndef Py_DEBUG |
| 561 | #define GETITEM(v, i) PyTuple_GET_ITEM((PyTupleObject *)(v), (i)) |
| 562 | #else |
| 563 | #define GETITEM(v, i) PyTuple_GetItem((v), (i)) |
| 564 | #endif |
| 565 | |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 566 | #ifdef WITH_TSC |
| 567 | /* Use Pentium timestamp counter to mark certain events: |
| 568 | inst0 -- beginning of switch statement for opcode dispatch |
| 569 | inst1 -- end of switch statement (may be skipped) |
| 570 | loop0 -- the top of the mainloop |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 571 | loop1 -- place where control returns again to top of mainloop |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 572 | (may be skipped) |
| 573 | intr1 -- beginning of long interruption |
| 574 | intr2 -- end of long interruption |
| 575 | |
| 576 | Many opcodes call out to helper C functions. In some cases, the |
| 577 | time in those functions should be counted towards the time for the |
| 578 | opcode, but not in all cases. For example, a CALL_FUNCTION opcode |
| 579 | calls another Python function; there's no point in charge all the |
| 580 | bytecode executed by the called function to the caller. |
| 581 | |
| 582 | It's hard to make a useful judgement statically. In the presence |
| 583 | of operator overloading, it's impossible to tell if a call will |
| 584 | execute new Python code or not. |
| 585 | |
| 586 | It's a case-by-case judgement. I'll use intr1 for the following |
| 587 | cases: |
| 588 | |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 589 | IMPORT_STAR |
| 590 | IMPORT_FROM |
| 591 | CALL_FUNCTION (and friends) |
| 592 | |
| 593 | */ |
| 594 | uint64 inst0, inst1, loop0, loop1, intr0 = 0, intr1 = 0; |
| 595 | int ticked = 0; |
| 596 | |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 597 | READ_TIMESTAMP(inst0); |
| 598 | READ_TIMESTAMP(inst1); |
| 599 | READ_TIMESTAMP(loop0); |
| 600 | READ_TIMESTAMP(loop1); |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 601 | |
| 602 | /* shut up the compiler */ |
| 603 | opcode = 0; |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 604 | #endif |
| 605 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 606 | /* Code access macros */ |
| 607 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 608 | #define INSTR_OFFSET() ((int)(next_instr - first_instr)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 609 | #define NEXTOP() (*next_instr++) |
Raymond Hettinger | 5bed456 | 2004-04-10 23:34:17 +0000 | [diff] [blame] | 610 | #define NEXTARG() (next_instr += 2, (next_instr[-1]<<8) + next_instr[-2]) |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 611 | #define PEEKARG() ((next_instr[2]<<8) + next_instr[1]) |
Guido van Rossum | d076c73 | 1998-10-07 19:42:25 +0000 | [diff] [blame] | 612 | #define JUMPTO(x) (next_instr = first_instr + (x)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 613 | #define JUMPBY(x) (next_instr += (x)) |
| 614 | |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 615 | /* OpCode prediction macros |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 616 | Some opcodes tend to come in pairs thus making it possible to |
| 617 | predict the second code when the first is run. For example, |
| 618 | COMPARE_OP is often followed by JUMP_IF_FALSE or JUMP_IF_TRUE. And, |
| 619 | those opcodes are often followed by a POP_TOP. |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 620 | |
| 621 | Verifying the prediction costs a single high-speed test of register |
Raymond Hettinger | ac207292 | 2003-03-16 15:41:11 +0000 | [diff] [blame] | 622 | variable against a constant. If the pairing was good, then the |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 623 | processor has a high likelihood of making its own successful branch |
| 624 | prediction which results in a nearly zero overhead transition to the |
| 625 | next opcode. |
| 626 | |
| 627 | A successful prediction saves a trip through the eval-loop including |
| 628 | its two unpredictable branches, the HASARG test and the switch-case. |
Raymond Hettinger | a721698 | 2004-02-08 19:59:27 +0000 | [diff] [blame] | 629 | |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 630 | If collecting opcode statistics, turn off prediction so that |
| 631 | statistics are accurately maintained (the predictions bypass |
Raymond Hettinger | a721698 | 2004-02-08 19:59:27 +0000 | [diff] [blame] | 632 | the opcode frequency counter updates). |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 633 | */ |
| 634 | |
Raymond Hettinger | a721698 | 2004-02-08 19:59:27 +0000 | [diff] [blame] | 635 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 636 | #define PREDICT(op) if (0) goto PRED_##op |
| 637 | #else |
Raymond Hettinger | ac207292 | 2003-03-16 15:41:11 +0000 | [diff] [blame] | 638 | #define PREDICT(op) if (*next_instr == op) goto PRED_##op |
Raymond Hettinger | a721698 | 2004-02-08 19:59:27 +0000 | [diff] [blame] | 639 | #endif |
| 640 | |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 641 | #define PREDICTED(op) PRED_##op: next_instr++ |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 642 | #define PREDICTED_WITH_ARG(op) PRED_##op: oparg = PEEKARG(); next_instr += 3 |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 643 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 644 | /* Stack manipulation macros */ |
| 645 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 646 | /* The stack can grow at most MAXINT deep, as co_nlocals and |
| 647 | co_stacksize are ints. */ |
| 648 | #define STACK_LEVEL() ((int)(stack_pointer - f->f_valuestack)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 649 | #define EMPTY() (STACK_LEVEL() == 0) |
| 650 | #define TOP() (stack_pointer[-1]) |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 651 | #define SECOND() (stack_pointer[-2]) |
| 652 | #define THIRD() (stack_pointer[-3]) |
| 653 | #define FOURTH() (stack_pointer[-4]) |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 654 | #define SET_TOP(v) (stack_pointer[-1] = (v)) |
| 655 | #define SET_SECOND(v) (stack_pointer[-2] = (v)) |
| 656 | #define SET_THIRD(v) (stack_pointer[-3] = (v)) |
| 657 | #define SET_FOURTH(v) (stack_pointer[-4] = (v)) |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 658 | #define BASIC_STACKADJ(n) (stack_pointer += n) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 659 | #define BASIC_PUSH(v) (*stack_pointer++ = (v)) |
| 660 | #define BASIC_POP() (*--stack_pointer) |
| 661 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 662 | #ifdef LLTRACE |
Jeremy Hylton | 1436815 | 2001-10-17 13:29:30 +0000 | [diff] [blame] | 663 | #define PUSH(v) { (void)(BASIC_PUSH(v), \ |
| 664 | lltrace && prtrace(TOP(), "push")); \ |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 665 | assert(STACK_LEVEL() <= co->co_stacksize); } |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 666 | #define POP() ((void)(lltrace && prtrace(TOP(), "pop")), \ |
| 667 | BASIC_POP()) |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 668 | #define STACKADJ(n) { (void)(BASIC_STACKADJ(n), \ |
| 669 | lltrace && prtrace(TOP(), "stackadj")); \ |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 670 | assert(STACK_LEVEL() <= co->co_stacksize); } |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 671 | #define EXT_POP(STACK_POINTER) (lltrace && prtrace((STACK_POINTER)[-1], \ |
| 672 | "ext_pop"), *--(STACK_POINTER)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 673 | #else |
| 674 | #define PUSH(v) BASIC_PUSH(v) |
| 675 | #define POP() BASIC_POP() |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 676 | #define STACKADJ(n) BASIC_STACKADJ(n) |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 677 | #define EXT_POP(STACK_POINTER) (*--(STACK_POINTER)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 678 | #endif |
| 679 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 680 | /* Local variable macros */ |
| 681 | |
| 682 | #define GETLOCAL(i) (fastlocals[i]) |
Guido van Rossum | cfbf1a3 | 2002-03-28 20:17:52 +0000 | [diff] [blame] | 683 | |
| 684 | /* The SETLOCAL() macro must not DECREF the local variable in-place and |
| 685 | then store the new value; it must copy the old value to a temporary |
| 686 | value, then store the new value, and then DECREF the temporary value. |
| 687 | This is because it is possible that during the DECREF the frame is |
| 688 | accessed by other code (e.g. a __del__ method or gc.collect()) and the |
| 689 | variable would be pointing to already-freed memory. */ |
| 690 | #define SETLOCAL(i, value) do { PyObject *tmp = GETLOCAL(i); \ |
| 691 | GETLOCAL(i) = value; \ |
| 692 | Py_XDECREF(tmp); } while (0) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 693 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 694 | /* Start of code */ |
| 695 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 696 | if (f == NULL) |
| 697 | return NULL; |
| 698 | |
Armin Rigo | 1d313ab | 2003-10-25 14:33:09 +0000 | [diff] [blame] | 699 | /* push frame */ |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 700 | if (Py_EnterRecursiveCall("")) |
Armin Rigo | 1d313ab | 2003-10-25 14:33:09 +0000 | [diff] [blame] | 701 | return NULL; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 702 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 703 | tstate->frame = f; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 704 | |
Neil Schemenauer | 6c0f200 | 2001-09-04 19:03:35 +0000 | [diff] [blame] | 705 | if (tstate->use_tracing) { |
| 706 | if (tstate->c_tracefunc != NULL) { |
| 707 | /* tstate->c_tracefunc, if defined, is a |
| 708 | function that will be called on *every* entry |
| 709 | to a code block. Its return value, if not |
| 710 | None, is a function that will be called at |
| 711 | the start of each executed line of code. |
| 712 | (Actually, the function must return itself |
| 713 | in order to continue tracing.) The trace |
| 714 | functions are called with three arguments: |
| 715 | a pointer to the current frame, a string |
| 716 | indicating why the function is called, and |
| 717 | an argument which depends on the situation. |
| 718 | The global trace function is also called |
| 719 | whenever an exception is detected. */ |
| 720 | if (call_trace(tstate->c_tracefunc, tstate->c_traceobj, |
| 721 | f, PyTrace_CALL, Py_None)) { |
Neil Schemenauer | 6c0f200 | 2001-09-04 19:03:35 +0000 | [diff] [blame] | 722 | /* Trace function raised an error */ |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 723 | goto exit_eval_frame; |
Neil Schemenauer | 6c0f200 | 2001-09-04 19:03:35 +0000 | [diff] [blame] | 724 | } |
| 725 | } |
| 726 | if (tstate->c_profilefunc != NULL) { |
| 727 | /* Similar for c_profilefunc, except it needn't |
| 728 | return itself and isn't called for "line" events */ |
| 729 | if (call_trace(tstate->c_profilefunc, |
| 730 | tstate->c_profileobj, |
| 731 | f, PyTrace_CALL, Py_None)) { |
Neil Schemenauer | 6c0f200 | 2001-09-04 19:03:35 +0000 | [diff] [blame] | 732 | /* Profile function raised an error */ |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 733 | goto exit_eval_frame; |
Neil Schemenauer | 6c0f200 | 2001-09-04 19:03:35 +0000 | [diff] [blame] | 734 | } |
| 735 | } |
| 736 | } |
| 737 | |
Michael W. Hudson | 019a78e | 2002-11-08 12:53:11 +0000 | [diff] [blame] | 738 | co = f->f_code; |
| 739 | names = co->co_names; |
| 740 | consts = co->co_consts; |
| 741 | fastlocals = f->f_localsplus; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 742 | freevars = f->f_localsplus + co->co_nlocals; |
Brett Cannon | c9371d4 | 2005-06-25 08:23:41 +0000 | [diff] [blame] | 743 | first_instr = (unsigned char*) PyString_AS_STRING(co->co_code); |
Michael W. Hudson | 019a78e | 2002-11-08 12:53:11 +0000 | [diff] [blame] | 744 | /* An explanation is in order for the next line. |
| 745 | |
| 746 | f->f_lasti now refers to the index of the last instruction |
| 747 | executed. You might think this was obvious from the name, but |
| 748 | this wasn't always true before 2.3! PyFrame_New now sets |
| 749 | f->f_lasti to -1 (i.e. the index *before* the first instruction) |
| 750 | and YIELD_VALUE doesn't fiddle with f_lasti any more. So this |
Thomas Wouters | 902d6eb | 2007-01-09 23:18:33 +0000 | [diff] [blame] | 751 | does work. Promise. |
| 752 | |
| 753 | When the PREDICT() macros are enabled, some opcode pairs follow in |
| 754 | direct succession without updating f->f_lasti. A successful |
| 755 | prediction effectively links the two codes together as if they |
| 756 | were a single new opcode; accordingly,f->f_lasti will point to |
| 757 | the first code in the pair (for instance, GET_ITER followed by |
| 758 | FOR_ITER is effectively a single opcode and f->f_lasti will point |
| 759 | at to the beginning of the combined pair.) |
| 760 | */ |
Michael W. Hudson | 019a78e | 2002-11-08 12:53:11 +0000 | [diff] [blame] | 761 | next_instr = first_instr + f->f_lasti + 1; |
| 762 | stack_pointer = f->f_stacktop; |
| 763 | assert(stack_pointer != NULL); |
| 764 | f->f_stacktop = NULL; /* remains NULL unless yield suspends frame */ |
| 765 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 766 | #ifdef LLTRACE |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 767 | lltrace = PyDict_GetItemString(f->f_globals, "__lltrace__") != NULL; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 768 | #endif |
Neal Norwitz | 5f5153e | 2005-10-21 04:28:38 +0000 | [diff] [blame] | 769 | #if defined(Py_DEBUG) || defined(LLTRACE) |
Guido van Rossum | 00bc0e0 | 2007-10-15 02:52:41 +0000 | [diff] [blame] | 770 | filename = PyUnicode_AsString(co->co_filename); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 771 | #endif |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 772 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 773 | why = WHY_NOT; |
| 774 | err = 0; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 775 | x = Py_None; /* Not a reference, just anything non-NULL */ |
Fred Drake | 48fba73 | 2000-10-11 13:54:07 +0000 | [diff] [blame] | 776 | w = NULL; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 777 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 778 | if (throwflag) { /* support for generator.throw() */ |
Phillip J. Eby | 0d6615f | 2005-08-02 00:46:46 +0000 | [diff] [blame] | 779 | why = WHY_EXCEPTION; |
| 780 | goto on_error; |
| 781 | } |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 782 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 783 | for (;;) { |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 784 | #ifdef WITH_TSC |
| 785 | if (inst1 == 0) { |
| 786 | /* Almost surely, the opcode executed a break |
| 787 | or a continue, preventing inst1 from being set |
| 788 | on the way out of the loop. |
| 789 | */ |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 790 | READ_TIMESTAMP(inst1); |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 791 | loop1 = inst1; |
| 792 | } |
| 793 | dump_tsc(opcode, ticked, inst0, inst1, loop0, loop1, |
| 794 | intr0, intr1); |
| 795 | ticked = 0; |
| 796 | inst1 = 0; |
| 797 | intr0 = 0; |
| 798 | intr1 = 0; |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 799 | READ_TIMESTAMP(loop0); |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 800 | #endif |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 801 | assert(stack_pointer >= f->f_valuestack); /* else underflow */ |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 802 | assert(STACK_LEVEL() <= co->co_stacksize); /* else overflow */ |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 803 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 804 | /* Do periodic things. Doing this every time through |
| 805 | the loop would add too much overhead, so we do it |
| 806 | only every Nth instruction. We also do it if |
| 807 | ``things_to_do'' is set, i.e. when an asynchronous |
| 808 | event needs attention (e.g. a signal handler or |
| 809 | async I/O handler); see Py_AddPendingCall() and |
| 810 | Py_MakePendingCalls() above. */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 811 | |
Skip Montanaro | d581d77 | 2002-09-03 20:10:45 +0000 | [diff] [blame] | 812 | if (--_Py_Ticker < 0) { |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 813 | if (*next_instr == SETUP_FINALLY) { |
| 814 | /* Make the last opcode before |
| 815 | a try: finally: block uninterruptable. */ |
| 816 | goto fast_next_opcode; |
| 817 | } |
Skip Montanaro | d581d77 | 2002-09-03 20:10:45 +0000 | [diff] [blame] | 818 | _Py_Ticker = _Py_CheckInterval; |
Michael W. Hudson | 019a78e | 2002-11-08 12:53:11 +0000 | [diff] [blame] | 819 | tstate->tick_counter++; |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 820 | #ifdef WITH_TSC |
| 821 | ticked = 1; |
| 822 | #endif |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 823 | if (things_to_do) { |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 824 | if (Py_MakePendingCalls() < 0) { |
| 825 | why = WHY_EXCEPTION; |
| 826 | goto on_error; |
| 827 | } |
Kurt B. Kaiser | 4c79a83 | 2004-11-23 18:06:08 +0000 | [diff] [blame] | 828 | if (things_to_do) |
| 829 | /* MakePendingCalls() didn't succeed. |
| 830 | Force early re-execution of this |
| 831 | "periodic" code, possibly after |
| 832 | a thread switch */ |
| 833 | _Py_Ticker = 0; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 834 | } |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 835 | #ifdef WITH_THREAD |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 836 | if (interpreter_lock) { |
| 837 | /* Give another thread a chance */ |
| 838 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 839 | if (PyThreadState_Swap(NULL) != tstate) |
| 840 | Py_FatalError("ceval: tstate mix-up"); |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 841 | PyThread_release_lock(interpreter_lock); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 842 | |
| 843 | /* Other threads may run now */ |
| 844 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 845 | PyThread_acquire_lock(interpreter_lock, 1); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 846 | if (PyThreadState_Swap(tstate) != NULL) |
| 847 | Py_FatalError("ceval: orphan tstate"); |
Guido van Rossum | b8b6d0c | 2003-06-28 21:53:52 +0000 | [diff] [blame] | 848 | |
| 849 | /* Check for thread interrupts */ |
| 850 | |
| 851 | if (tstate->async_exc != NULL) { |
| 852 | x = tstate->async_exc; |
| 853 | tstate->async_exc = NULL; |
| 854 | PyErr_SetNone(x); |
| 855 | Py_DECREF(x); |
| 856 | why = WHY_EXCEPTION; |
| 857 | goto on_error; |
| 858 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 859 | } |
| 860 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 861 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 862 | |
Neil Schemenauer | 6354386 | 2002-02-17 19:10:14 +0000 | [diff] [blame] | 863 | fast_next_opcode: |
Guido van Rossum | 99bec95 | 1992-09-03 20:29:45 +0000 | [diff] [blame] | 864 | f->f_lasti = INSTR_OFFSET(); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 865 | |
Michael W. Hudson | 019a78e | 2002-11-08 12:53:11 +0000 | [diff] [blame] | 866 | /* line-by-line tracing support */ |
| 867 | |
| 868 | if (tstate->c_tracefunc != NULL && !tstate->tracing) { |
| 869 | /* see maybe_call_line_trace |
| 870 | for expository comments */ |
| 871 | f->f_stacktop = stack_pointer; |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 872 | |
Michael W. Hudson | 58ee2af | 2003-04-29 16:18:47 +0000 | [diff] [blame] | 873 | err = maybe_call_line_trace(tstate->c_tracefunc, |
| 874 | tstate->c_traceobj, |
Armin Rigo | bf57a14 | 2004-03-22 19:24:58 +0000 | [diff] [blame] | 875 | f, &instr_lb, &instr_ub, |
| 876 | &instr_prev); |
Michael W. Hudson | 019a78e | 2002-11-08 12:53:11 +0000 | [diff] [blame] | 877 | /* Reload possibly changed frame fields */ |
| 878 | JUMPTO(f->f_lasti); |
Michael W. Hudson | 58ee2af | 2003-04-29 16:18:47 +0000 | [diff] [blame] | 879 | if (f->f_stacktop != NULL) { |
| 880 | stack_pointer = f->f_stacktop; |
| 881 | f->f_stacktop = NULL; |
| 882 | } |
| 883 | if (err) { |
| 884 | /* trace function raised an exception */ |
| 885 | goto on_error; |
| 886 | } |
Michael W. Hudson | 019a78e | 2002-11-08 12:53:11 +0000 | [diff] [blame] | 887 | } |
| 888 | |
| 889 | /* Extract opcode and argument */ |
| 890 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 891 | opcode = NEXTOP(); |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 892 | oparg = 0; /* allows oparg to be stored in a register because |
| 893 | it doesn't have to be remembered across a full loop */ |
Raymond Hettinger | 5bed456 | 2004-04-10 23:34:17 +0000 | [diff] [blame] | 894 | if (HAS_ARG(opcode)) |
| 895 | oparg = NEXTARG(); |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 896 | dispatch_opcode: |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 897 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 898 | #ifdef DXPAIRS |
| 899 | dxpairs[lastopcode][opcode]++; |
| 900 | lastopcode = opcode; |
| 901 | #endif |
| 902 | dxp[opcode]++; |
| 903 | #endif |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 904 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 905 | #ifdef LLTRACE |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 906 | /* Instruction tracing */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 907 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 908 | if (lltrace) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 909 | if (HAS_ARG(opcode)) { |
| 910 | printf("%d: %d, %d\n", |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 911 | f->f_lasti, opcode, oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 912 | } |
| 913 | else { |
| 914 | printf("%d: %d\n", |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 915 | f->f_lasti, opcode); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 916 | } |
| 917 | } |
| 918 | #endif |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 919 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 920 | /* Main switch on opcode */ |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 921 | READ_TIMESTAMP(inst0); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 922 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 923 | switch (opcode) { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 924 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 925 | /* BEWARE! |
| 926 | It is essential that any operation that fails sets either |
| 927 | x to NULL, err to nonzero, or why to anything but WHY_NOT, |
| 928 | and that no operation that succeeds does this! */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 929 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 930 | /* case STOP_CODE: this is an error! */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 931 | |
Raymond Hettinger | 9c18e81 | 2004-06-21 16:31:15 +0000 | [diff] [blame] | 932 | case NOP: |
| 933 | goto fast_next_opcode; |
| 934 | |
Neil Schemenauer | 6354386 | 2002-02-17 19:10:14 +0000 | [diff] [blame] | 935 | case LOAD_FAST: |
| 936 | x = GETLOCAL(oparg); |
| 937 | if (x != NULL) { |
| 938 | Py_INCREF(x); |
| 939 | PUSH(x); |
| 940 | goto fast_next_opcode; |
| 941 | } |
| 942 | format_exc_check_arg(PyExc_UnboundLocalError, |
| 943 | UNBOUNDLOCAL_ERROR_MSG, |
| 944 | PyTuple_GetItem(co->co_varnames, oparg)); |
| 945 | break; |
| 946 | |
| 947 | case LOAD_CONST: |
Skip Montanaro | 04d80f8 | 2002-08-04 21:03:35 +0000 | [diff] [blame] | 948 | x = GETITEM(consts, oparg); |
Neil Schemenauer | 6354386 | 2002-02-17 19:10:14 +0000 | [diff] [blame] | 949 | Py_INCREF(x); |
| 950 | PUSH(x); |
| 951 | goto fast_next_opcode; |
| 952 | |
Raymond Hettinger | 7dc5221 | 2003-03-16 20:14:44 +0000 | [diff] [blame] | 953 | PREDICTED_WITH_ARG(STORE_FAST); |
Neil Schemenauer | 6354386 | 2002-02-17 19:10:14 +0000 | [diff] [blame] | 954 | case STORE_FAST: |
| 955 | v = POP(); |
| 956 | SETLOCAL(oparg, v); |
| 957 | goto fast_next_opcode; |
| 958 | |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 959 | PREDICTED(POP_TOP); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 960 | case POP_TOP: |
| 961 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 962 | Py_DECREF(v); |
Neil Schemenauer | 6354386 | 2002-02-17 19:10:14 +0000 | [diff] [blame] | 963 | goto fast_next_opcode; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 964 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 965 | case ROT_TWO: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 966 | v = TOP(); |
| 967 | w = SECOND(); |
| 968 | SET_TOP(w); |
| 969 | SET_SECOND(v); |
Raymond Hettinger | 080cb32 | 2003-03-14 01:37:42 +0000 | [diff] [blame] | 970 | goto fast_next_opcode; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 971 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 972 | case ROT_THREE: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 973 | v = TOP(); |
| 974 | w = SECOND(); |
| 975 | x = THIRD(); |
| 976 | SET_TOP(w); |
| 977 | SET_SECOND(x); |
| 978 | SET_THIRD(v); |
Raymond Hettinger | 080cb32 | 2003-03-14 01:37:42 +0000 | [diff] [blame] | 979 | goto fast_next_opcode; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 980 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 981 | case ROT_FOUR: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 982 | u = TOP(); |
| 983 | v = SECOND(); |
| 984 | w = THIRD(); |
| 985 | x = FOURTH(); |
| 986 | SET_TOP(v); |
| 987 | SET_SECOND(w); |
| 988 | SET_THIRD(x); |
| 989 | SET_FOURTH(u); |
Raymond Hettinger | 080cb32 | 2003-03-14 01:37:42 +0000 | [diff] [blame] | 990 | goto fast_next_opcode; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 991 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 992 | case DUP_TOP: |
| 993 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 994 | Py_INCREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 995 | PUSH(v); |
Raymond Hettinger | 080cb32 | 2003-03-14 01:37:42 +0000 | [diff] [blame] | 996 | goto fast_next_opcode; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 997 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 998 | case DUP_TOPX: |
Raymond Hettinger | 4bad9ba | 2003-01-19 05:08:13 +0000 | [diff] [blame] | 999 | if (oparg == 2) { |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1000 | x = TOP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 1001 | Py_INCREF(x); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1002 | w = SECOND(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 1003 | Py_INCREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1004 | STACKADJ(2); |
| 1005 | SET_TOP(x); |
| 1006 | SET_SECOND(w); |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 1007 | goto fast_next_opcode; |
Raymond Hettinger | 4bad9ba | 2003-01-19 05:08:13 +0000 | [diff] [blame] | 1008 | } else if (oparg == 3) { |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1009 | x = TOP(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 1010 | Py_INCREF(x); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1011 | w = SECOND(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 1012 | Py_INCREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1013 | v = THIRD(); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 1014 | Py_INCREF(v); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1015 | STACKADJ(3); |
| 1016 | SET_TOP(x); |
| 1017 | SET_SECOND(w); |
| 1018 | SET_THIRD(v); |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 1019 | goto fast_next_opcode; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1020 | } |
Raymond Hettinger | 4bad9ba | 2003-01-19 05:08:13 +0000 | [diff] [blame] | 1021 | Py_FatalError("invalid argument to DUP_TOPX" |
| 1022 | " (bytecode corruption?)"); |
Tim Peters | 35ba689 | 2000-10-11 07:04:49 +0000 | [diff] [blame] | 1023 | break; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1024 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1025 | case UNARY_POSITIVE: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1026 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1027 | x = PyNumber_Positive(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1028 | Py_DECREF(v); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1029 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1030 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1031 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1032 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1033 | case UNARY_NEGATIVE: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1034 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1035 | x = PyNumber_Negative(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1036 | Py_DECREF(v); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1037 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1038 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1039 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1040 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1041 | case UNARY_NOT: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1042 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1043 | err = PyObject_IsTrue(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1044 | Py_DECREF(v); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1045 | if (err == 0) { |
| 1046 | Py_INCREF(Py_True); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1047 | SET_TOP(Py_True); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1048 | continue; |
| 1049 | } |
| 1050 | else if (err > 0) { |
| 1051 | Py_INCREF(Py_False); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1052 | SET_TOP(Py_False); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1053 | err = 0; |
| 1054 | continue; |
| 1055 | } |
Raymond Hettinger | 8bb90a5 | 2003-01-14 12:43:10 +0000 | [diff] [blame] | 1056 | STACKADJ(-1); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1057 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1058 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1059 | case UNARY_INVERT: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1060 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1061 | x = PyNumber_Invert(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1062 | Py_DECREF(v); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1063 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1064 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1065 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1066 | |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 1067 | case BINARY_POWER: |
| 1068 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1069 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1070 | x = PyNumber_Power(v, w, Py_None); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1071 | Py_DECREF(v); |
| 1072 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1073 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1074 | if (x != NULL) continue; |
Guido van Rossum | 50564e8 | 1996-01-12 01:13:16 +0000 | [diff] [blame] | 1075 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1076 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1077 | case BINARY_MULTIPLY: |
| 1078 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1079 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1080 | x = PyNumber_Multiply(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1081 | Py_DECREF(v); |
| 1082 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1083 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1084 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1085 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1086 | |
Tim Peters | 3caca23 | 2001-12-06 06:23:26 +0000 | [diff] [blame] | 1087 | case BINARY_TRUE_DIVIDE: |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1088 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1089 | v = TOP(); |
Tim Peters | 3caca23 | 2001-12-06 06:23:26 +0000 | [diff] [blame] | 1090 | x = PyNumber_TrueDivide(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1091 | Py_DECREF(v); |
| 1092 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1093 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1094 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1095 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1096 | |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 1097 | case BINARY_FLOOR_DIVIDE: |
| 1098 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1099 | v = TOP(); |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 1100 | x = PyNumber_FloorDivide(v, w); |
| 1101 | Py_DECREF(v); |
| 1102 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1103 | SET_TOP(x); |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 1104 | if (x != NULL) continue; |
| 1105 | break; |
| 1106 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1107 | case BINARY_MODULO: |
| 1108 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1109 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1110 | x = PyNumber_Remainder(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1111 | Py_DECREF(v); |
| 1112 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1113 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1114 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1115 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1116 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1117 | case BINARY_ADD: |
| 1118 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1119 | v = TOP(); |
Tim Peters | c1e6d96 | 2001-10-05 20:21:03 +0000 | [diff] [blame] | 1120 | if (PyInt_CheckExact(v) && PyInt_CheckExact(w)) { |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1121 | /* INLINE: int + int */ |
| 1122 | register long a, b, i; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 1123 | a = PyInt_AS_LONG(v); |
| 1124 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1125 | i = a + b; |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1126 | if ((i^a) < 0 && (i^b) < 0) |
| 1127 | goto slow_add; |
| 1128 | x = PyInt_FromLong(i); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1129 | } |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 1130 | else if (PyString_CheckExact(v) && |
| 1131 | PyString_CheckExact(w)) { |
| 1132 | x = string_concatenate(v, w, f, next_instr); |
| 1133 | /* string_concatenate consumed the ref to v */ |
| 1134 | goto skip_decref_vx; |
| 1135 | } |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1136 | else { |
| 1137 | slow_add: |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1138 | x = PyNumber_Add(v, w); |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1139 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1140 | Py_DECREF(v); |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 1141 | skip_decref_vx: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1142 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1143 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1144 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1145 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1146 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1147 | case BINARY_SUBTRACT: |
| 1148 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1149 | v = TOP(); |
Tim Peters | c1e6d96 | 2001-10-05 20:21:03 +0000 | [diff] [blame] | 1150 | if (PyInt_CheckExact(v) && PyInt_CheckExact(w)) { |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1151 | /* INLINE: int - int */ |
| 1152 | register long a, b, i; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 1153 | a = PyInt_AS_LONG(v); |
| 1154 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1155 | i = a - b; |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1156 | if ((i^a) < 0 && (i^~b) < 0) |
| 1157 | goto slow_sub; |
| 1158 | x = PyInt_FromLong(i); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1159 | } |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1160 | else { |
| 1161 | slow_sub: |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1162 | x = PyNumber_Subtract(v, w); |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1163 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1164 | Py_DECREF(v); |
| 1165 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1166 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1167 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1168 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1169 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1170 | case BINARY_SUBSCR: |
| 1171 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1172 | v = TOP(); |
Tim Peters | b1c4698 | 2001-10-05 20:41:38 +0000 | [diff] [blame] | 1173 | if (PyList_CheckExact(v) && PyInt_CheckExact(w)) { |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1174 | /* INLINE: list[int] */ |
Neal Norwitz | 814e938 | 2006-03-02 07:54:28 +0000 | [diff] [blame] | 1175 | Py_ssize_t i = PyInt_AsSsize_t(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1176 | if (i < 0) |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 1177 | i += PyList_GET_SIZE(v); |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1178 | if (i >= 0 && i < PyList_GET_SIZE(v)) { |
Guido van Rossum | fa00e95 | 1998-07-08 15:02:37 +0000 | [diff] [blame] | 1179 | x = PyList_GET_ITEM(v, i); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1180 | Py_INCREF(x); |
| 1181 | } |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1182 | else |
| 1183 | goto slow_get; |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1184 | } |
| 1185 | else |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1186 | slow_get: |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1187 | x = PyObject_GetItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1188 | Py_DECREF(v); |
| 1189 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1190 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1191 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1192 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1193 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1194 | case BINARY_LSHIFT: |
| 1195 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1196 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1197 | x = PyNumber_Lshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1198 | Py_DECREF(v); |
| 1199 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1200 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1201 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1202 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1203 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1204 | case BINARY_RSHIFT: |
| 1205 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1206 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1207 | x = PyNumber_Rshift(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1208 | Py_DECREF(v); |
| 1209 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1210 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1211 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1212 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1213 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1214 | case BINARY_AND: |
| 1215 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1216 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1217 | x = PyNumber_And(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1218 | Py_DECREF(v); |
| 1219 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1220 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1221 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1222 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1223 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1224 | case BINARY_XOR: |
| 1225 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1226 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1227 | x = PyNumber_Xor(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1228 | Py_DECREF(v); |
| 1229 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1230 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1231 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1232 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1233 | |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1234 | case BINARY_OR: |
| 1235 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1236 | v = TOP(); |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1237 | x = PyNumber_Or(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1238 | Py_DECREF(v); |
| 1239 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1240 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1241 | if (x != NULL) continue; |
Guido van Rossum | 7928cd7 | 1991-10-24 14:59:31 +0000 | [diff] [blame] | 1242 | break; |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1243 | |
Raymond Hettinger | dd80f76 | 2004-03-07 07:31:06 +0000 | [diff] [blame] | 1244 | case LIST_APPEND: |
| 1245 | w = POP(); |
| 1246 | v = POP(); |
| 1247 | err = PyList_Append(v, w); |
| 1248 | Py_DECREF(v); |
| 1249 | Py_DECREF(w); |
Raymond Hettinger | fba1cfc | 2004-03-12 16:33:17 +0000 | [diff] [blame] | 1250 | if (err == 0) { |
| 1251 | PREDICT(JUMP_ABSOLUTE); |
| 1252 | continue; |
| 1253 | } |
Raymond Hettinger | dd80f76 | 2004-03-07 07:31:06 +0000 | [diff] [blame] | 1254 | break; |
| 1255 | |
Nick Coghlan | 650f0d0 | 2007-04-15 12:05:43 +0000 | [diff] [blame] | 1256 | case SET_ADD: |
| 1257 | w = POP(); |
| 1258 | v = POP(); |
| 1259 | err = PySet_Add(v, w); |
| 1260 | Py_DECREF(v); |
| 1261 | Py_DECREF(w); |
| 1262 | if (err == 0) { |
| 1263 | PREDICT(JUMP_ABSOLUTE); |
| 1264 | continue; |
| 1265 | } |
| 1266 | break; |
| 1267 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1268 | case INPLACE_POWER: |
| 1269 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1270 | v = TOP(); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1271 | x = PyNumber_InPlacePower(v, w, Py_None); |
| 1272 | Py_DECREF(v); |
| 1273 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1274 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1275 | if (x != NULL) continue; |
| 1276 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1277 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1278 | case INPLACE_MULTIPLY: |
| 1279 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1280 | v = TOP(); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1281 | x = PyNumber_InPlaceMultiply(v, w); |
| 1282 | Py_DECREF(v); |
| 1283 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1284 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1285 | if (x != NULL) continue; |
| 1286 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1287 | |
Tim Peters | 54b1191 | 2001-12-25 18:49:11 +0000 | [diff] [blame] | 1288 | case INPLACE_TRUE_DIVIDE: |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1289 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1290 | v = TOP(); |
Tim Peters | 54b1191 | 2001-12-25 18:49:11 +0000 | [diff] [blame] | 1291 | x = PyNumber_InPlaceTrueDivide(v, w); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1292 | Py_DECREF(v); |
| 1293 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1294 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1295 | if (x != NULL) continue; |
| 1296 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1297 | |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 1298 | case INPLACE_FLOOR_DIVIDE: |
| 1299 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1300 | v = TOP(); |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 1301 | x = PyNumber_InPlaceFloorDivide(v, w); |
| 1302 | Py_DECREF(v); |
| 1303 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1304 | SET_TOP(x); |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 1305 | if (x != NULL) continue; |
| 1306 | break; |
| 1307 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1308 | case INPLACE_MODULO: |
| 1309 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1310 | v = TOP(); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1311 | x = PyNumber_InPlaceRemainder(v, w); |
| 1312 | Py_DECREF(v); |
| 1313 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1314 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1315 | if (x != NULL) continue; |
| 1316 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1317 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1318 | case INPLACE_ADD: |
| 1319 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1320 | v = TOP(); |
Tim Peters | c1e6d96 | 2001-10-05 20:21:03 +0000 | [diff] [blame] | 1321 | if (PyInt_CheckExact(v) && PyInt_CheckExact(w)) { |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1322 | /* INLINE: int + int */ |
| 1323 | register long a, b, i; |
| 1324 | a = PyInt_AS_LONG(v); |
| 1325 | b = PyInt_AS_LONG(w); |
| 1326 | i = a + b; |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1327 | if ((i^a) < 0 && (i^b) < 0) |
| 1328 | goto slow_iadd; |
| 1329 | x = PyInt_FromLong(i); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1330 | } |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 1331 | else if (PyString_CheckExact(v) && |
| 1332 | PyString_CheckExact(w)) { |
| 1333 | x = string_concatenate(v, w, f, next_instr); |
| 1334 | /* string_concatenate consumed the ref to v */ |
| 1335 | goto skip_decref_v; |
| 1336 | } |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1337 | else { |
| 1338 | slow_iadd: |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1339 | x = PyNumber_InPlaceAdd(v, w); |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1340 | } |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1341 | Py_DECREF(v); |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 1342 | skip_decref_v: |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1343 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1344 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1345 | if (x != NULL) continue; |
| 1346 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1347 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1348 | case INPLACE_SUBTRACT: |
| 1349 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1350 | v = TOP(); |
Tim Peters | c1e6d96 | 2001-10-05 20:21:03 +0000 | [diff] [blame] | 1351 | if (PyInt_CheckExact(v) && PyInt_CheckExact(w)) { |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1352 | /* INLINE: int - int */ |
| 1353 | register long a, b, i; |
| 1354 | a = PyInt_AS_LONG(v); |
| 1355 | b = PyInt_AS_LONG(w); |
| 1356 | i = a - b; |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1357 | if ((i^a) < 0 && (i^~b) < 0) |
| 1358 | goto slow_isub; |
| 1359 | x = PyInt_FromLong(i); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1360 | } |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1361 | else { |
| 1362 | slow_isub: |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1363 | x = PyNumber_InPlaceSubtract(v, w); |
Guido van Rossum | 87780df | 2001-08-23 02:58:07 +0000 | [diff] [blame] | 1364 | } |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1365 | Py_DECREF(v); |
| 1366 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1367 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1368 | if (x != NULL) continue; |
| 1369 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1370 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1371 | case INPLACE_LSHIFT: |
| 1372 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1373 | v = TOP(); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1374 | x = PyNumber_InPlaceLshift(v, w); |
| 1375 | Py_DECREF(v); |
| 1376 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1377 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1378 | if (x != NULL) continue; |
| 1379 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1380 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1381 | case INPLACE_RSHIFT: |
| 1382 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1383 | v = TOP(); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1384 | x = PyNumber_InPlaceRshift(v, w); |
| 1385 | Py_DECREF(v); |
| 1386 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1387 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1388 | if (x != NULL) continue; |
| 1389 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1390 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1391 | case INPLACE_AND: |
| 1392 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1393 | v = TOP(); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1394 | x = PyNumber_InPlaceAnd(v, w); |
| 1395 | Py_DECREF(v); |
| 1396 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1397 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1398 | if (x != NULL) continue; |
| 1399 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1400 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1401 | case INPLACE_XOR: |
| 1402 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1403 | v = TOP(); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1404 | x = PyNumber_InPlaceXor(v, w); |
| 1405 | Py_DECREF(v); |
| 1406 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1407 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1408 | if (x != NULL) continue; |
| 1409 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1410 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1411 | case INPLACE_OR: |
| 1412 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1413 | v = TOP(); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1414 | x = PyNumber_InPlaceOr(v, w); |
| 1415 | Py_DECREF(v); |
| 1416 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1417 | SET_TOP(x); |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1418 | if (x != NULL) continue; |
| 1419 | break; |
| 1420 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1421 | case STORE_SUBSCR: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1422 | w = TOP(); |
| 1423 | v = SECOND(); |
| 1424 | u = THIRD(); |
| 1425 | STACKADJ(-3); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1426 | /* v[w] = u */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1427 | err = PyObject_SetItem(v, w, u); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1428 | Py_DECREF(u); |
| 1429 | Py_DECREF(v); |
| 1430 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1431 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1432 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1433 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1434 | case DELETE_SUBSCR: |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1435 | w = TOP(); |
| 1436 | v = SECOND(); |
| 1437 | STACKADJ(-2); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1438 | /* del v[w] */ |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1439 | err = PyObject_DelItem(v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1440 | Py_DECREF(v); |
| 1441 | Py_DECREF(w); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1442 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1443 | break; |
Barry Warsaw | 23c9ec8 | 2000-08-21 15:44:01 +0000 | [diff] [blame] | 1444 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1445 | case PRINT_EXPR: |
| 1446 | v = POP(); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1447 | w = PySys_GetObject("displayhook"); |
| 1448 | if (w == NULL) { |
| 1449 | PyErr_SetString(PyExc_RuntimeError, |
| 1450 | "lost sys.displayhook"); |
| 1451 | err = -1; |
Moshe Zadka | f5df383 | 2001-01-11 11:55:37 +0000 | [diff] [blame] | 1452 | x = NULL; |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1453 | } |
| 1454 | if (err == 0) { |
Raymond Hettinger | 8ae4689 | 2003-10-12 19:09:37 +0000 | [diff] [blame] | 1455 | x = PyTuple_Pack(1, v); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1456 | if (x == NULL) |
| 1457 | err = -1; |
| 1458 | } |
| 1459 | if (err == 0) { |
| 1460 | w = PyEval_CallObject(w, x); |
Moshe Zadka | f5df383 | 2001-01-11 11:55:37 +0000 | [diff] [blame] | 1461 | Py_XDECREF(w); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1462 | if (w == NULL) |
| 1463 | err = -1; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1464 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1465 | Py_DECREF(v); |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1466 | Py_XDECREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1467 | break; |
Moshe Zadka | f68f2fe | 2001-01-11 05:41:27 +0000 | [diff] [blame] | 1468 | |
Thomas Wouters | 434d082 | 2000-08-24 20:11:32 +0000 | [diff] [blame] | 1469 | #ifdef CASE_TOO_BIG |
| 1470 | default: switch (opcode) { |
| 1471 | #endif |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1472 | case RAISE_VARARGS: |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 1473 | v = w = NULL; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1474 | switch (oparg) { |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 1475 | case 2: |
| 1476 | v = POP(); /* cause */ |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1477 | case 1: |
| 1478 | w = POP(); /* exc */ |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 1479 | case 0: /* Fallthrough */ |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 1480 | why = do_raise(w, v); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1481 | break; |
| 1482 | default: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1483 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1484 | "bad RAISE_VARARGS oparg"); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1485 | why = WHY_EXCEPTION; |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 1486 | break; |
| 1487 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1488 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1489 | |
Guido van Rossum | 52cc1d8 | 2007-03-18 15:41:51 +0000 | [diff] [blame] | 1490 | case STORE_LOCALS: |
| 1491 | x = POP(); |
| 1492 | v = f->f_locals; |
| 1493 | Py_XDECREF(v); |
| 1494 | f->f_locals = x; |
| 1495 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1496 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1497 | case RETURN_VALUE: |
| 1498 | retval = POP(); |
| 1499 | why = WHY_RETURN; |
Raymond Hettinger | 1dd8309 | 2004-02-06 18:32:33 +0000 | [diff] [blame] | 1500 | goto fast_block_end; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 1501 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 1502 | case YIELD_VALUE: |
| 1503 | retval = POP(); |
Tim Peters | 8c96369 | 2001-06-23 05:26:56 +0000 | [diff] [blame] | 1504 | f->f_stacktop = stack_pointer; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 1505 | why = WHY_YIELD; |
Raymond Hettinger | 1dd8309 | 2004-02-06 18:32:33 +0000 | [diff] [blame] | 1506 | goto fast_yield; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 1507 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1508 | case POP_BLOCK: |
| 1509 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1510 | PyTryBlock *b = PyFrame_BlockPop(f); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1511 | while (STACK_LEVEL() > b->b_level) { |
| 1512 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1513 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1514 | } |
| 1515 | } |
Raymond Hettinger | 7eddd78 | 2004-04-07 14:38:08 +0000 | [diff] [blame] | 1516 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1517 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1518 | case END_FINALLY: |
| 1519 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1520 | if (PyInt_Check(v)) { |
Raymond Hettinger | 7c95865 | 2004-04-06 10:11:10 +0000 | [diff] [blame] | 1521 | why = (enum why_code) PyInt_AS_LONG(v); |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 1522 | assert(why != WHY_YIELD); |
Raymond Hettinger | c8aa08b | 2004-04-11 14:59:33 +0000 | [diff] [blame] | 1523 | if (why == WHY_RETURN || |
| 1524 | why == WHY_CONTINUE) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1525 | retval = POP(); |
| 1526 | } |
Brett Cannon | f74225d | 2007-02-26 21:10:16 +0000 | [diff] [blame] | 1527 | else if (PyExceptionClass_Check(v)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1528 | w = POP(); |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 1529 | u = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1530 | PyErr_Restore(v, w, u); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1531 | why = WHY_RERAISE; |
Guido van Rossum | 0db1ef9 | 1995-07-28 23:06:00 +0000 | [diff] [blame] | 1532 | break; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1533 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1534 | else if (v != Py_None) { |
| 1535 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1536 | "'finally' pops bad exception"); |
| 1537 | why = WHY_EXCEPTION; |
| 1538 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1539 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1540 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1541 | |
Guido van Rossum | 52cc1d8 | 2007-03-18 15:41:51 +0000 | [diff] [blame] | 1542 | case LOAD_BUILD_CLASS: |
| 1543 | x = PyDict_GetItemString(f->f_builtins, |
| 1544 | "__build_class__"); |
| 1545 | if (x == NULL) { |
| 1546 | PyErr_SetString(PyExc_ImportError, |
| 1547 | "__build_class__ not found"); |
| 1548 | break; |
| 1549 | } |
| 1550 | Py_INCREF(x); |
| 1551 | PUSH(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1552 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1553 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1554 | case STORE_NAME: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1555 | w = GETITEM(names, oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1556 | v = POP(); |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1557 | if ((x = f->f_locals) != NULL) { |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 1558 | if (PyDict_CheckExact(x)) |
Raymond Hettinger | 214b1c3 | 2004-07-02 06:41:07 +0000 | [diff] [blame] | 1559 | err = PyDict_SetItem(x, w, v); |
| 1560 | else |
| 1561 | err = PyObject_SetItem(x, w, v); |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1562 | Py_DECREF(v); |
Raymond Hettinger | 7eddd78 | 2004-04-07 14:38:08 +0000 | [diff] [blame] | 1563 | if (err == 0) continue; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1564 | break; |
| 1565 | } |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1566 | PyErr_Format(PyExc_SystemError, |
| 1567 | "no locals found when storing %s", |
| 1568 | PyObject_REPR(w)); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1569 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1570 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1571 | case DELETE_NAME: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1572 | w = GETITEM(names, oparg); |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1573 | if ((x = f->f_locals) != NULL) { |
Raymond Hettinger | 214b1c3 | 2004-07-02 06:41:07 +0000 | [diff] [blame] | 1574 | if ((err = PyObject_DelItem(x, w)) != 0) |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1575 | format_exc_check_arg(PyExc_NameError, |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 1576 | NAME_ERROR_MSG, |
| 1577 | w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1578 | break; |
| 1579 | } |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1580 | PyErr_Format(PyExc_SystemError, |
| 1581 | "no locals when deleting %s", |
| 1582 | PyObject_REPR(w)); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1583 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1584 | |
Raymond Hettinger | 7dc5221 | 2003-03-16 20:14:44 +0000 | [diff] [blame] | 1585 | PREDICTED_WITH_ARG(UNPACK_SEQUENCE); |
Thomas Wouters | 0be5aab | 2000-08-11 22:15:52 +0000 | [diff] [blame] | 1586 | case UNPACK_SEQUENCE: |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1587 | v = POP(); |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 1588 | if (PyTuple_CheckExact(v) && |
| 1589 | PyTuple_GET_SIZE(v) == oparg) { |
| 1590 | PyObject **items = \ |
| 1591 | ((PyTupleObject *)v)->ob_item; |
Raymond Hettinger | f114a3a | 2004-03-08 23:25:30 +0000 | [diff] [blame] | 1592 | while (oparg--) { |
| 1593 | w = items[oparg]; |
| 1594 | Py_INCREF(w); |
| 1595 | PUSH(w); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1596 | } |
Raymond Hettinger | 7eddd78 | 2004-04-07 14:38:08 +0000 | [diff] [blame] | 1597 | Py_DECREF(v); |
| 1598 | continue; |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 1599 | } else if (PyList_CheckExact(v) && |
| 1600 | PyList_GET_SIZE(v) == oparg) { |
| 1601 | PyObject **items = \ |
| 1602 | ((PyListObject *)v)->ob_item; |
Raymond Hettinger | f114a3a | 2004-03-08 23:25:30 +0000 | [diff] [blame] | 1603 | while (oparg--) { |
| 1604 | w = items[oparg]; |
| 1605 | Py_INCREF(w); |
| 1606 | PUSH(w); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1607 | } |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 1608 | } else if (unpack_iterable(v, oparg, -1, |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 1609 | stack_pointer + oparg)) { |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 1610 | stack_pointer += oparg; |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1611 | } else { |
| 1612 | /* unpack_iterable() raised an exception */ |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 1613 | why = WHY_EXCEPTION; |
Tim Peters | 8b13b3e | 2001-09-30 05:58:42 +0000 | [diff] [blame] | 1614 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1615 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1616 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1617 | |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 1618 | case UNPACK_EX: |
| 1619 | { |
| 1620 | int totalargs = 1 + (oparg & 0xFF) + (oparg >> 8); |
| 1621 | v = POP(); |
| 1622 | |
| 1623 | if (unpack_iterable(v, oparg & 0xFF, oparg >> 8, |
| 1624 | stack_pointer + totalargs)) { |
| 1625 | stack_pointer += totalargs; |
| 1626 | } else { |
| 1627 | why = WHY_EXCEPTION; |
| 1628 | } |
| 1629 | Py_DECREF(v); |
| 1630 | break; |
| 1631 | } |
| 1632 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1633 | case STORE_ATTR: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1634 | w = GETITEM(names, oparg); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1635 | v = TOP(); |
| 1636 | u = SECOND(); |
| 1637 | STACKADJ(-2); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1638 | err = PyObject_SetAttr(v, w, u); /* v.w = u */ |
| 1639 | Py_DECREF(v); |
| 1640 | Py_DECREF(u); |
Raymond Hettinger | 7eddd78 | 2004-04-07 14:38:08 +0000 | [diff] [blame] | 1641 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1642 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1643 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1644 | case DELETE_ATTR: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1645 | w = GETITEM(names, oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1646 | v = POP(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1647 | err = PyObject_SetAttr(v, w, (PyObject *)NULL); |
| 1648 | /* del v.w */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1649 | Py_DECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1650 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1651 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1652 | case STORE_GLOBAL: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1653 | w = GETITEM(names, oparg); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1654 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1655 | err = PyDict_SetItem(f->f_globals, w, v); |
| 1656 | Py_DECREF(v); |
Raymond Hettinger | 7eddd78 | 2004-04-07 14:38:08 +0000 | [diff] [blame] | 1657 | if (err == 0) continue; |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1658 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1659 | |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1660 | case DELETE_GLOBAL: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1661 | w = GETITEM(names, oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1662 | if ((err = PyDict_DelItem(f->f_globals, w)) != 0) |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1663 | format_exc_check_arg( |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1664 | PyExc_NameError, GLOBAL_NAME_ERROR_MSG, w); |
Guido van Rossum | 32c6cdf | 1991-12-10 13:52:46 +0000 | [diff] [blame] | 1665 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1666 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1667 | case LOAD_NAME: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1668 | w = GETITEM(names, oparg); |
Raymond Hettinger | 214b1c3 | 2004-07-02 06:41:07 +0000 | [diff] [blame] | 1669 | if ((v = f->f_locals) == NULL) { |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1670 | PyErr_Format(PyExc_SystemError, |
| 1671 | "no locals when loading %s", |
Jeremy Hylton | 483638c | 2001-02-01 20:20:45 +0000 | [diff] [blame] | 1672 | PyObject_REPR(w)); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1673 | break; |
| 1674 | } |
Michael W. Hudson | a3711f7 | 2004-08-02 14:50:43 +0000 | [diff] [blame] | 1675 | if (PyDict_CheckExact(v)) { |
Raymond Hettinger | 214b1c3 | 2004-07-02 06:41:07 +0000 | [diff] [blame] | 1676 | x = PyDict_GetItem(v, w); |
Michael W. Hudson | a3711f7 | 2004-08-02 14:50:43 +0000 | [diff] [blame] | 1677 | Py_XINCREF(x); |
| 1678 | } |
Raymond Hettinger | 214b1c3 | 2004-07-02 06:41:07 +0000 | [diff] [blame] | 1679 | else { |
| 1680 | x = PyObject_GetItem(v, w); |
| 1681 | if (x == NULL && PyErr_Occurred()) { |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 1682 | if (!PyErr_ExceptionMatches( |
| 1683 | PyExc_KeyError)) |
Raymond Hettinger | 214b1c3 | 2004-07-02 06:41:07 +0000 | [diff] [blame] | 1684 | break; |
| 1685 | PyErr_Clear(); |
| 1686 | } |
| 1687 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1688 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1689 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1690 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1691 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1692 | if (x == NULL) { |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1693 | format_exc_check_arg( |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1694 | PyExc_NameError, |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 1695 | NAME_ERROR_MSG, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1696 | break; |
| 1697 | } |
| 1698 | } |
Michael W. Hudson | a3711f7 | 2004-08-02 14:50:43 +0000 | [diff] [blame] | 1699 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1700 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1701 | PUSH(x); |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1702 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1703 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1704 | case LOAD_GLOBAL: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1705 | w = GETITEM(names, oparg); |
Neal Norwitz | da059e3 | 2007-08-26 05:33:45 +0000 | [diff] [blame] | 1706 | if (PyUnicode_CheckExact(w)) { |
Guido van Rossum | d8dbf84 | 2002-08-19 21:17:53 +0000 | [diff] [blame] | 1707 | /* Inline the PyDict_GetItem() calls. |
| 1708 | WARNING: this is an extreme speed hack. |
| 1709 | Do not try this at home. */ |
Neal Norwitz | da059e3 | 2007-08-26 05:33:45 +0000 | [diff] [blame] | 1710 | long hash = ((PyUnicodeObject *)w)->hash; |
Guido van Rossum | 3a4dfc8 | 2002-08-19 20:24:07 +0000 | [diff] [blame] | 1711 | if (hash != -1) { |
Guido van Rossum | 3a4dfc8 | 2002-08-19 20:24:07 +0000 | [diff] [blame] | 1712 | PyDictObject *d; |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 1713 | PyDictEntry *e; |
Guido van Rossum | 3a4dfc8 | 2002-08-19 20:24:07 +0000 | [diff] [blame] | 1714 | d = (PyDictObject *)(f->f_globals); |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 1715 | e = d->ma_lookup(d, w, hash); |
| 1716 | if (e == NULL) { |
| 1717 | x = NULL; |
| 1718 | break; |
| 1719 | } |
| 1720 | x = e->me_value; |
Guido van Rossum | 3a4dfc8 | 2002-08-19 20:24:07 +0000 | [diff] [blame] | 1721 | if (x != NULL) { |
| 1722 | Py_INCREF(x); |
| 1723 | PUSH(x); |
| 1724 | continue; |
| 1725 | } |
| 1726 | d = (PyDictObject *)(f->f_builtins); |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 1727 | e = d->ma_lookup(d, w, hash); |
| 1728 | if (e == NULL) { |
| 1729 | x = NULL; |
| 1730 | break; |
| 1731 | } |
| 1732 | x = e->me_value; |
Guido van Rossum | 3a4dfc8 | 2002-08-19 20:24:07 +0000 | [diff] [blame] | 1733 | if (x != NULL) { |
| 1734 | Py_INCREF(x); |
| 1735 | PUSH(x); |
| 1736 | continue; |
| 1737 | } |
| 1738 | goto load_global_error; |
| 1739 | } |
| 1740 | } |
| 1741 | /* This is the un-inlined version of the code above */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1742 | x = PyDict_GetItem(f->f_globals, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1743 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1744 | x = PyDict_GetItem(f->f_builtins, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1745 | if (x == NULL) { |
Guido van Rossum | 3a4dfc8 | 2002-08-19 20:24:07 +0000 | [diff] [blame] | 1746 | load_global_error: |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 1747 | format_exc_check_arg( |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1748 | PyExc_NameError, |
Guido van Rossum | 3a4dfc8 | 2002-08-19 20:24:07 +0000 | [diff] [blame] | 1749 | GLOBAL_NAME_ERROR_MSG, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1750 | break; |
| 1751 | } |
| 1752 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1753 | Py_INCREF(x); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1754 | PUSH(x); |
Raymond Hettinger | 7eddd78 | 2004-04-07 14:38:08 +0000 | [diff] [blame] | 1755 | continue; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1756 | |
Guido van Rossum | 8b17d6b | 1993-03-30 13:18:41 +0000 | [diff] [blame] | 1757 | case DELETE_FAST: |
Guido van Rossum | 2e4c899 | 1998-05-12 20:27:36 +0000 | [diff] [blame] | 1758 | x = GETLOCAL(oparg); |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1759 | if (x != NULL) { |
| 1760 | SETLOCAL(oparg, NULL); |
| 1761 | continue; |
Guido van Rossum | 2e4c899 | 1998-05-12 20:27:36 +0000 | [diff] [blame] | 1762 | } |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1763 | format_exc_check_arg( |
| 1764 | PyExc_UnboundLocalError, |
| 1765 | UNBOUNDLOCAL_ERROR_MSG, |
| 1766 | PyTuple_GetItem(co->co_varnames, oparg) |
| 1767 | ); |
| 1768 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1769 | |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1770 | case LOAD_CLOSURE: |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1771 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1772 | Py_INCREF(x); |
| 1773 | PUSH(x); |
Raymond Hettinger | 7eddd78 | 2004-04-07 14:38:08 +0000 | [diff] [blame] | 1774 | if (x != NULL) continue; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1775 | break; |
| 1776 | |
| 1777 | case LOAD_DEREF: |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1778 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1779 | w = PyCell_Get(x); |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1780 | if (w != NULL) { |
| 1781 | PUSH(w); |
| 1782 | continue; |
Jeremy Hylton | 2524d69 | 2001-02-05 17:23:16 +0000 | [diff] [blame] | 1783 | } |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1784 | err = -1; |
| 1785 | /* Don't stomp existing exception */ |
| 1786 | if (PyErr_Occurred()) |
| 1787 | break; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 1788 | if (oparg < PyTuple_GET_SIZE(co->co_cellvars)) { |
| 1789 | v = PyTuple_GET_ITEM(co->co_cellvars, |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1790 | oparg); |
| 1791 | format_exc_check_arg( |
| 1792 | PyExc_UnboundLocalError, |
| 1793 | UNBOUNDLOCAL_ERROR_MSG, |
| 1794 | v); |
| 1795 | } else { |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 1796 | v = PyTuple_GET_ITEM(co->co_freevars, oparg - |
| 1797 | PyTuple_GET_SIZE(co->co_cellvars)); |
| 1798 | format_exc_check_arg(PyExc_NameError, |
| 1799 | UNBOUNDFREE_ERROR_MSG, v); |
Raymond Hettinger | 467a698 | 2004-04-07 11:39:21 +0000 | [diff] [blame] | 1800 | } |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1801 | break; |
| 1802 | |
| 1803 | case STORE_DEREF: |
| 1804 | w = POP(); |
Jeremy Hylton | 2b724da | 2001-01-29 22:51:52 +0000 | [diff] [blame] | 1805 | x = freevars[oparg]; |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1806 | PyCell_Set(x, w); |
Jeremy Hylton | 30c9f39 | 2001-03-13 01:58:22 +0000 | [diff] [blame] | 1807 | Py_DECREF(w); |
Jeremy Hylton | 64949cb | 2001-01-25 20:06:59 +0000 | [diff] [blame] | 1808 | continue; |
| 1809 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1810 | case BUILD_TUPLE: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1811 | x = PyTuple_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1812 | if (x != NULL) { |
Raymond Hettinger | 5bed456 | 2004-04-10 23:34:17 +0000 | [diff] [blame] | 1813 | for (; --oparg >= 0;) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1814 | w = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1815 | PyTuple_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1816 | } |
| 1817 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1818 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1819 | } |
| 1820 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1821 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1822 | case BUILD_LIST: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1823 | x = PyList_New(oparg); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1824 | if (x != NULL) { |
Raymond Hettinger | 5bed456 | 2004-04-10 23:34:17 +0000 | [diff] [blame] | 1825 | for (; --oparg >= 0;) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1826 | w = POP(); |
Guido van Rossum | 5053efc | 1998-08-04 15:27:50 +0000 | [diff] [blame] | 1827 | PyList_SET_ITEM(x, oparg, w); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1828 | } |
| 1829 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1830 | continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1831 | } |
| 1832 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1833 | |
Guido van Rossum | 86e58e2 | 2006-08-28 15:27:34 +0000 | [diff] [blame] | 1834 | case BUILD_SET: |
| 1835 | x = PySet_New(NULL); |
| 1836 | if (x != NULL) { |
| 1837 | for (; --oparg >= 0;) { |
| 1838 | w = POP(); |
| 1839 | if (err == 0) |
| 1840 | err = PySet_Add(x, w); |
| 1841 | Py_DECREF(w); |
| 1842 | } |
| 1843 | if (err != 0) { |
| 1844 | Py_DECREF(x); |
| 1845 | break; |
| 1846 | } |
| 1847 | PUSH(x); |
| 1848 | continue; |
| 1849 | } |
| 1850 | break; |
| 1851 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1852 | case BUILD_MAP: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1853 | x = PyDict_New(); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1854 | PUSH(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1855 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1856 | break; |
Thomas Wouters | 00e41de | 2007-02-23 19:56:57 +0000 | [diff] [blame] | 1857 | |
| 1858 | case MAKE_BYTES: |
| 1859 | w = POP(); |
| 1860 | if (PyString_Check(w)) |
| 1861 | x = PyBytes_FromStringAndSize( |
| 1862 | PyString_AS_STRING(w), |
| 1863 | PyString_GET_SIZE(w)); |
| 1864 | else |
| 1865 | x = NULL; |
| 1866 | Py_DECREF(w); |
| 1867 | PUSH(x); |
| 1868 | if (x != NULL) continue; |
| 1869 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1870 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1871 | case LOAD_ATTR: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1872 | w = GETITEM(names, oparg); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1873 | v = TOP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1874 | x = PyObject_GetAttr(v, w); |
| 1875 | Py_DECREF(v); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1876 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1877 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1878 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1879 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1880 | case COMPARE_OP: |
| 1881 | w = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1882 | v = TOP(); |
Raymond Hettinger | 4bad9ba | 2003-01-19 05:08:13 +0000 | [diff] [blame] | 1883 | if (PyInt_CheckExact(w) && PyInt_CheckExact(v)) { |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1884 | /* INLINE: cmp(int, int) */ |
| 1885 | register long a, b; |
| 1886 | register int res; |
Guido van Rossum | cf183ac | 1998-12-04 18:51:36 +0000 | [diff] [blame] | 1887 | a = PyInt_AS_LONG(v); |
| 1888 | b = PyInt_AS_LONG(w); |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1889 | switch (oparg) { |
Martin v. Löwis | 7198a52 | 2002-01-01 19:59:11 +0000 | [diff] [blame] | 1890 | case PyCmp_LT: res = a < b; break; |
| 1891 | case PyCmp_LE: res = a <= b; break; |
| 1892 | case PyCmp_EQ: res = a == b; break; |
| 1893 | case PyCmp_NE: res = a != b; break; |
| 1894 | case PyCmp_GT: res = a > b; break; |
| 1895 | case PyCmp_GE: res = a >= b; break; |
| 1896 | case PyCmp_IS: res = v == w; break; |
| 1897 | case PyCmp_IS_NOT: res = v != w; break; |
Guido van Rossum | c12da69 | 1997-07-17 23:12:42 +0000 | [diff] [blame] | 1898 | default: goto slow_compare; |
| 1899 | } |
| 1900 | x = res ? Py_True : Py_False; |
| 1901 | Py_INCREF(x); |
| 1902 | } |
| 1903 | else { |
| 1904 | slow_compare: |
| 1905 | x = cmp_outcome(oparg, v, w); |
| 1906 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1907 | Py_DECREF(v); |
| 1908 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1909 | SET_TOP(x); |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 1910 | if (x == NULL) break; |
| 1911 | PREDICT(JUMP_IF_FALSE); |
| 1912 | PREDICT(JUMP_IF_TRUE); |
| 1913 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1914 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1915 | case IMPORT_NAME: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1916 | w = GETITEM(names, oparg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1917 | x = PyDict_GetItemString(f->f_builtins, "__import__"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1918 | if (x == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1919 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | fc49073 | 1997-05-06 15:06:49 +0000 | [diff] [blame] | 1920 | "__import__ not found"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1921 | break; |
| 1922 | } |
Thomas Wouters | f7f438b | 2006-02-28 16:09:29 +0000 | [diff] [blame] | 1923 | v = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1924 | u = TOP(); |
Thomas Wouters | f7f438b | 2006-02-28 16:09:29 +0000 | [diff] [blame] | 1925 | if (PyInt_AsLong(u) != -1 || PyErr_Occurred()) |
| 1926 | w = PyTuple_Pack(5, |
| 1927 | w, |
| 1928 | f->f_globals, |
| 1929 | f->f_locals == NULL ? |
| 1930 | Py_None : f->f_locals, |
| 1931 | v, |
| 1932 | u); |
| 1933 | else |
| 1934 | w = PyTuple_Pack(4, |
| 1935 | w, |
| 1936 | f->f_globals, |
| 1937 | f->f_locals == NULL ? |
| 1938 | Py_None : f->f_locals, |
| 1939 | v); |
| 1940 | Py_DECREF(v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1941 | Py_DECREF(u); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1942 | if (w == NULL) { |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1943 | u = POP(); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1944 | x = NULL; |
| 1945 | break; |
| 1946 | } |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 1947 | READ_TIMESTAMP(intr0); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1948 | x = PyEval_CallObject(x, w); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 1949 | READ_TIMESTAMP(intr1); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1950 | Py_DECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 1951 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1952 | if (x != NULL) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1953 | break; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1954 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1955 | case IMPORT_STAR: |
| 1956 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1957 | PyFrame_FastToLocals(f); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1958 | if ((x = f->f_locals) == NULL) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 1959 | PyErr_SetString(PyExc_SystemError, |
Jeremy Hylton | c862cf4 | 2001-01-19 03:25:05 +0000 | [diff] [blame] | 1960 | "no locals found during 'import *'"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 1961 | break; |
| 1962 | } |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 1963 | READ_TIMESTAMP(intr0); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1964 | err = import_all_from(x, v); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 1965 | READ_TIMESTAMP(intr1); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 1966 | PyFrame_LocalsToFast(f, 0); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1967 | Py_DECREF(v); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 1968 | if (err == 0) continue; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1969 | break; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1970 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1971 | case IMPORT_FROM: |
Skip Montanaro | 496e658 | 2002-08-06 17:47:40 +0000 | [diff] [blame] | 1972 | w = GETITEM(names, oparg); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1973 | v = TOP(); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 1974 | READ_TIMESTAMP(intr0); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1975 | x = import_from(v, w); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 1976 | READ_TIMESTAMP(intr1); |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 1977 | PUSH(x); |
| 1978 | if (x != NULL) continue; |
| 1979 | break; |
| 1980 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1981 | case JUMP_FORWARD: |
| 1982 | JUMPBY(oparg); |
Neil Schemenauer | c4b570f | 2003-06-01 19:21:12 +0000 | [diff] [blame] | 1983 | goto fast_next_opcode; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 1984 | |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 1985 | PREDICTED_WITH_ARG(JUMP_IF_FALSE); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 1986 | case JUMP_IF_FALSE: |
Raymond Hettinger | 21012b8 | 2003-02-26 18:11:50 +0000 | [diff] [blame] | 1987 | w = TOP(); |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 1988 | if (w == Py_True) { |
| 1989 | PREDICT(POP_TOP); |
Neil Schemenauer | c4b570f | 2003-06-01 19:21:12 +0000 | [diff] [blame] | 1990 | goto fast_next_opcode; |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 1991 | } |
Raymond Hettinger | 21012b8 | 2003-02-26 18:11:50 +0000 | [diff] [blame] | 1992 | if (w == Py_False) { |
| 1993 | JUMPBY(oparg); |
Neil Schemenauer | c4b570f | 2003-06-01 19:21:12 +0000 | [diff] [blame] | 1994 | goto fast_next_opcode; |
Raymond Hettinger | 21012b8 | 2003-02-26 18:11:50 +0000 | [diff] [blame] | 1995 | } |
| 1996 | err = PyObject_IsTrue(w); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1997 | if (err > 0) |
| 1998 | err = 0; |
| 1999 | else if (err == 0) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2000 | JUMPBY(oparg); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 2001 | else |
| 2002 | break; |
| 2003 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2004 | |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 2005 | PREDICTED_WITH_ARG(JUMP_IF_TRUE); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2006 | case JUMP_IF_TRUE: |
Raymond Hettinger | 21012b8 | 2003-02-26 18:11:50 +0000 | [diff] [blame] | 2007 | w = TOP(); |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 2008 | if (w == Py_False) { |
| 2009 | PREDICT(POP_TOP); |
Neil Schemenauer | c4b570f | 2003-06-01 19:21:12 +0000 | [diff] [blame] | 2010 | goto fast_next_opcode; |
Raymond Hettinger | f606f87 | 2003-03-16 03:11:04 +0000 | [diff] [blame] | 2011 | } |
Raymond Hettinger | 21012b8 | 2003-02-26 18:11:50 +0000 | [diff] [blame] | 2012 | if (w == Py_True) { |
| 2013 | JUMPBY(oparg); |
Neil Schemenauer | c4b570f | 2003-06-01 19:21:12 +0000 | [diff] [blame] | 2014 | goto fast_next_opcode; |
Raymond Hettinger | 21012b8 | 2003-02-26 18:11:50 +0000 | [diff] [blame] | 2015 | } |
| 2016 | err = PyObject_IsTrue(w); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2017 | if (err > 0) { |
| 2018 | err = 0; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2019 | JUMPBY(oparg); |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2020 | } |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 2021 | else if (err == 0) |
| 2022 | ; |
| 2023 | else |
| 2024 | break; |
| 2025 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2026 | |
Raymond Hettinger | fba1cfc | 2004-03-12 16:33:17 +0000 | [diff] [blame] | 2027 | PREDICTED_WITH_ARG(JUMP_ABSOLUTE); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2028 | case JUMP_ABSOLUTE: |
| 2029 | JUMPTO(oparg); |
Neil Schemenauer | ca2a2f1 | 2003-05-30 23:59:44 +0000 | [diff] [blame] | 2030 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2031 | |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2032 | case GET_ITER: |
| 2033 | /* before: [obj]; after [getiter(obj)] */ |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 2034 | v = TOP(); |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2035 | x = PyObject_GetIter(v); |
| 2036 | Py_DECREF(v); |
| 2037 | if (x != NULL) { |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 2038 | SET_TOP(x); |
Raymond Hettinger | 7dc5221 | 2003-03-16 20:14:44 +0000 | [diff] [blame] | 2039 | PREDICT(FOR_ITER); |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 2040 | continue; |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2041 | } |
Raymond Hettinger | 8bb90a5 | 2003-01-14 12:43:10 +0000 | [diff] [blame] | 2042 | STACKADJ(-1); |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2043 | break; |
| 2044 | |
Raymond Hettinger | 7dc5221 | 2003-03-16 20:14:44 +0000 | [diff] [blame] | 2045 | PREDICTED_WITH_ARG(FOR_ITER); |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2046 | case FOR_ITER: |
| 2047 | /* before: [iter]; after: [iter, iter()] *or* [] */ |
| 2048 | v = TOP(); |
Raymond Hettinger | db0de9e | 2004-03-12 08:41:36 +0000 | [diff] [blame] | 2049 | x = (*v->ob_type->tp_iternext)(v); |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 2050 | if (x != NULL) { |
| 2051 | PUSH(x); |
Raymond Hettinger | 7dc5221 | 2003-03-16 20:14:44 +0000 | [diff] [blame] | 2052 | PREDICT(STORE_FAST); |
| 2053 | PREDICT(UNPACK_SEQUENCE); |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 2054 | continue; |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2055 | } |
Raymond Hettinger | db0de9e | 2004-03-12 08:41:36 +0000 | [diff] [blame] | 2056 | if (PyErr_Occurred()) { |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 2057 | if (!PyErr_ExceptionMatches( |
| 2058 | PyExc_StopIteration)) |
Raymond Hettinger | db0de9e | 2004-03-12 08:41:36 +0000 | [diff] [blame] | 2059 | break; |
| 2060 | PyErr_Clear(); |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 2061 | } |
Raymond Hettinger | db0de9e | 2004-03-12 08:41:36 +0000 | [diff] [blame] | 2062 | /* iterator ended normally */ |
| 2063 | x = v = POP(); |
| 2064 | Py_DECREF(v); |
| 2065 | JUMPBY(oparg); |
| 2066 | continue; |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2067 | |
Raymond Hettinger | 2d783e9 | 2004-03-12 09:12:22 +0000 | [diff] [blame] | 2068 | case BREAK_LOOP: |
| 2069 | why = WHY_BREAK; |
| 2070 | goto fast_block_end; |
| 2071 | |
| 2072 | case CONTINUE_LOOP: |
| 2073 | retval = PyInt_FromLong(oparg); |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2074 | if (!retval) { |
| 2075 | x = NULL; |
| 2076 | break; |
| 2077 | } |
Raymond Hettinger | 2d783e9 | 2004-03-12 09:12:22 +0000 | [diff] [blame] | 2078 | why = WHY_CONTINUE; |
| 2079 | goto fast_block_end; |
| 2080 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2081 | case SETUP_LOOP: |
| 2082 | case SETUP_EXCEPT: |
| 2083 | case SETUP_FINALLY: |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 2084 | /* NOTE: If you add any new block-setup opcodes that |
| 2085 | are not try/except/finally handlers, you may need |
| 2086 | to update the PyGen_NeedsFinalizing() function. |
| 2087 | */ |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2088 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2089 | PyFrame_BlockSetup(f, opcode, INSTR_OFFSET() + oparg, |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2090 | STACK_LEVEL()); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 2091 | continue; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2092 | |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 2093 | case WITH_CLEANUP: |
| 2094 | { |
| 2095 | /* TOP is the context.__exit__ bound method. |
| 2096 | Below that are 1-3 values indicating how/why |
| 2097 | we entered the finally clause: |
| 2098 | - SECOND = None |
Guido van Rossum | f669436 | 2006-03-10 02:28:35 +0000 | [diff] [blame] | 2099 | - (SECOND, THIRD) = (WHY_{RETURN,CONTINUE}), retval |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 2100 | - SECOND = WHY_*; no retval below it |
| 2101 | - (SECOND, THIRD, FOURTH) = exc_info() |
| 2102 | In the last case, we must call |
| 2103 | TOP(SECOND, THIRD, FOURTH) |
| 2104 | otherwise we must call |
| 2105 | TOP(None, None, None) |
Guido van Rossum | 1a5e21e | 2006-02-28 21:57:43 +0000 | [diff] [blame] | 2106 | |
| 2107 | In addition, if the stack represents an exception, |
Guido van Rossum | f669436 | 2006-03-10 02:28:35 +0000 | [diff] [blame] | 2108 | *and* the function call returns a 'true' value, we |
| 2109 | "zap" this information, to prevent END_FINALLY from |
| 2110 | re-raising the exception. (But non-local gotos |
| 2111 | should still be resumed.) |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 2112 | */ |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2113 | |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 2114 | x = TOP(); |
| 2115 | u = SECOND(); |
| 2116 | if (PyInt_Check(u) || u == Py_None) { |
| 2117 | u = v = w = Py_None; |
| 2118 | } |
| 2119 | else { |
| 2120 | v = THIRD(); |
| 2121 | w = FOURTH(); |
| 2122 | } |
Guido van Rossum | f669436 | 2006-03-10 02:28:35 +0000 | [diff] [blame] | 2123 | /* XXX Not the fastest way to call it... */ |
| 2124 | x = PyObject_CallFunctionObjArgs(x, u, v, w, NULL); |
| 2125 | if (x == NULL) |
| 2126 | break; /* Go to error exit */ |
| 2127 | if (u != Py_None && PyObject_IsTrue(x)) { |
| 2128 | /* There was an exception and a true return */ |
| 2129 | Py_DECREF(x); |
| 2130 | x = TOP(); /* Again */ |
| 2131 | STACKADJ(-3); |
| 2132 | Py_INCREF(Py_None); |
| 2133 | SET_TOP(Py_None); |
| 2134 | Py_DECREF(x); |
| 2135 | Py_DECREF(u); |
| 2136 | Py_DECREF(v); |
| 2137 | Py_DECREF(w); |
| 2138 | } else { |
| 2139 | /* Let END_FINALLY do its thing */ |
| 2140 | Py_DECREF(x); |
| 2141 | x = POP(); |
| 2142 | Py_DECREF(x); |
| 2143 | } |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 2144 | break; |
| 2145 | } |
| 2146 | |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2147 | case CALL_FUNCTION: |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2148 | { |
| 2149 | PyObject **sp; |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 2150 | PCALL(PCALL_ALL); |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2151 | sp = stack_pointer; |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 2152 | #ifdef WITH_TSC |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2153 | x = call_function(&sp, oparg, &intr0, &intr1); |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 2154 | #else |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2155 | x = call_function(&sp, oparg); |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 2156 | #endif |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2157 | stack_pointer = sp; |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 2158 | PUSH(x); |
| 2159 | if (x != NULL) |
| 2160 | continue; |
| 2161 | break; |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2162 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2163 | |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2164 | case CALL_FUNCTION_VAR: |
| 2165 | case CALL_FUNCTION_KW: |
| 2166 | case CALL_FUNCTION_VAR_KW: |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2167 | { |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2168 | int na = oparg & 0xff; |
| 2169 | int nk = (oparg>>8) & 0xff; |
| 2170 | int flags = (opcode - CALL_FUNCTION) & 3; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2171 | int n = na + 2 * nk; |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2172 | PyObject **pfunc, *func, **sp; |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 2173 | PCALL(PCALL_ALL); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2174 | if (flags & CALL_FLAG_VAR) |
| 2175 | n++; |
| 2176 | if (flags & CALL_FLAG_KW) |
| 2177 | n++; |
| 2178 | pfunc = stack_pointer - n - 1; |
| 2179 | func = *pfunc; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2180 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2181 | if (PyMethod_Check(func) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2182 | && PyMethod_GET_SELF(func) != NULL) { |
| 2183 | PyObject *self = PyMethod_GET_SELF(func); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2184 | Py_INCREF(self); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2185 | func = PyMethod_GET_FUNCTION(func); |
| 2186 | Py_INCREF(func); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2187 | Py_DECREF(*pfunc); |
| 2188 | *pfunc = self; |
| 2189 | na++; |
| 2190 | n++; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2191 | } else |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2192 | Py_INCREF(func); |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2193 | sp = stack_pointer; |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 2194 | READ_TIMESTAMP(intr0); |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2195 | x = ext_do_call(func, &sp, flags, na, nk); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 2196 | READ_TIMESTAMP(intr1); |
Armin Rigo | 8817fcd | 2004-06-17 10:22:40 +0000 | [diff] [blame] | 2197 | stack_pointer = sp; |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2198 | Py_DECREF(func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2199 | |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2200 | while (stack_pointer > pfunc) { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2201 | w = POP(); |
| 2202 | Py_DECREF(w); |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2203 | } |
| 2204 | PUSH(x); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2205 | if (x != NULL) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 2206 | continue; |
Jeremy Hylton | 7690151 | 2000-03-28 23:49:17 +0000 | [diff] [blame] | 2207 | break; |
Guido van Rossum | f10570b | 1995-07-07 22:53:21 +0000 | [diff] [blame] | 2208 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2209 | |
Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 2210 | case MAKE_CLOSURE: |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2211 | case MAKE_FUNCTION: |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2212 | { |
| 2213 | int posdefaults = oparg & 0xff; |
| 2214 | int kwdefaults = (oparg>>8) & 0xff; |
Neal Norwitz | c150536 | 2006-12-28 06:47:50 +0000 | [diff] [blame] | 2215 | int num_annotations = (oparg >> 16) & 0x7fff; |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2216 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2217 | v = POP(); /* code object */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2218 | x = PyFunction_New(v, f->f_globals); |
| 2219 | Py_DECREF(v); |
Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 2220 | |
| 2221 | if (x != NULL && opcode == MAKE_CLOSURE) { |
| 2222 | v = POP(); |
| 2223 | err = PyFunction_SetClosure(x, v); |
| 2224 | Py_DECREF(v); |
| 2225 | } |
Neal Norwitz | c150536 | 2006-12-28 06:47:50 +0000 | [diff] [blame] | 2226 | |
| 2227 | if (x != NULL && num_annotations > 0) { |
| 2228 | Py_ssize_t name_ix; |
| 2229 | u = POP(); /* names of args with annotations */ |
| 2230 | v = PyDict_New(); |
| 2231 | if (v == NULL) { |
| 2232 | Py_DECREF(x); |
| 2233 | x = NULL; |
| 2234 | break; |
| 2235 | } |
| 2236 | name_ix = PyTuple_Size(u); |
| 2237 | assert(num_annotations == name_ix+1); |
| 2238 | while (name_ix > 0) { |
| 2239 | --name_ix; |
| 2240 | t = PyTuple_GET_ITEM(u, name_ix); |
| 2241 | w = POP(); |
| 2242 | /* XXX(nnorwitz): check for errors */ |
| 2243 | PyDict_SetItem(v, t, w); |
| 2244 | Py_DECREF(w); |
| 2245 | } |
| 2246 | |
| 2247 | err = PyFunction_SetAnnotations(x, v); |
| 2248 | Py_DECREF(v); |
| 2249 | Py_DECREF(u); |
| 2250 | } |
| 2251 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2252 | /* XXX Maybe this should be a separate opcode? */ |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2253 | if (x != NULL && posdefaults > 0) { |
| 2254 | v = PyTuple_New(posdefaults); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2255 | if (v == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2256 | Py_DECREF(x); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2257 | x = NULL; |
| 2258 | break; |
| 2259 | } |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2260 | while (--posdefaults >= 0) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2261 | w = POP(); |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2262 | PyTuple_SET_ITEM(v, posdefaults, w); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2263 | } |
| 2264 | err = PyFunction_SetDefaults(x, v); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2265 | Py_DECREF(v); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2266 | } |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2267 | if (x != NULL && kwdefaults > 0) { |
| 2268 | v = PyDict_New(); |
| 2269 | if (v == NULL) { |
| 2270 | Py_DECREF(x); |
| 2271 | x = NULL; |
| 2272 | break; |
| 2273 | } |
| 2274 | while (--kwdefaults >= 0) { |
| 2275 | w = POP(); /* default value */ |
| 2276 | u = POP(); /* kw only arg name */ |
Neal Norwitz | c150536 | 2006-12-28 06:47:50 +0000 | [diff] [blame] | 2277 | /* XXX(nnorwitz): check for errors */ |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2278 | PyDict_SetItem(v, u, w); |
Georg Brandl | 94ab000 | 2007-02-26 13:58:18 +0000 | [diff] [blame] | 2279 | Py_DECREF(w); |
| 2280 | Py_DECREF(u); |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2281 | } |
| 2282 | err = PyFunction_SetKwDefaults(x, v); |
| 2283 | Py_DECREF(v); |
| 2284 | } |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2285 | PUSH(x); |
| 2286 | break; |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2287 | } |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2288 | |
| 2289 | case BUILD_SLICE: |
| 2290 | if (oparg == 3) |
| 2291 | w = POP(); |
| 2292 | else |
| 2293 | w = NULL; |
| 2294 | v = POP(); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 2295 | u = TOP(); |
Guido van Rossum | 1aa1483 | 1997-01-21 05:34:20 +0000 | [diff] [blame] | 2296 | x = PySlice_New(u, v, w); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2297 | Py_DECREF(u); |
| 2298 | Py_DECREF(v); |
| 2299 | Py_XDECREF(w); |
Raymond Hettinger | 663004b | 2003-01-09 15:24:30 +0000 | [diff] [blame] | 2300 | SET_TOP(x); |
Guido van Rossum | 3dfd53b | 1997-01-18 02:46:13 +0000 | [diff] [blame] | 2301 | if (x != NULL) continue; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2302 | break; |
| 2303 | |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 2304 | case EXTENDED_ARG: |
| 2305 | opcode = NEXTOP(); |
Raymond Hettinger | 5bed456 | 2004-04-10 23:34:17 +0000 | [diff] [blame] | 2306 | oparg = oparg<<16 | NEXTARG(); |
Fred Drake | ef8ace3 | 2000-08-24 00:32:09 +0000 | [diff] [blame] | 2307 | goto dispatch_opcode; |
Guido van Rossum | 8861b74 | 1996-07-30 16:49:37 +0000 | [diff] [blame] | 2308 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2309 | default: |
| 2310 | fprintf(stderr, |
| 2311 | "XXX lineno: %d, opcode: %d\n", |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 2312 | PyCode_Addr2Line(f->f_code, f->f_lasti), |
| 2313 | opcode); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2314 | PyErr_SetString(PyExc_SystemError, "unknown opcode"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2315 | why = WHY_EXCEPTION; |
| 2316 | break; |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 2317 | |
| 2318 | #ifdef CASE_TOO_BIG |
| 2319 | } |
| 2320 | #endif |
| 2321 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2322 | } /* switch */ |
| 2323 | |
| 2324 | on_error: |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2325 | |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 2326 | READ_TIMESTAMP(inst1); |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 2327 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2328 | /* Quickly continue if no error occurred */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2329 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2330 | if (why == WHY_NOT) { |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2331 | if (err == 0 && x != NULL) { |
| 2332 | #ifdef CHECKEXC |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2333 | /* This check is expensive! */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2334 | if (PyErr_Occurred()) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2335 | fprintf(stderr, |
| 2336 | "XXX undetected error\n"); |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 2337 | else { |
| 2338 | #endif |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 2339 | READ_TIMESTAMP(loop1); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2340 | continue; /* Normal, fast path */ |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 2341 | #ifdef CHECKEXC |
| 2342 | } |
| 2343 | #endif |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2344 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2345 | why = WHY_EXCEPTION; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2346 | x = Py_None; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2347 | err = 0; |
| 2348 | } |
| 2349 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2350 | /* Double-check exception status */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2351 | |
Raymond Hettinger | c8aa08b | 2004-04-11 14:59:33 +0000 | [diff] [blame] | 2352 | if (why == WHY_EXCEPTION || why == WHY_RERAISE) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2353 | if (!PyErr_Occurred()) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2354 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2355 | "error return without exception set"); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2356 | why = WHY_EXCEPTION; |
| 2357 | } |
| 2358 | } |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2359 | #ifdef CHECKEXC |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2360 | else { |
Guido van Rossum | eb894eb | 1999-03-09 16:16:45 +0000 | [diff] [blame] | 2361 | /* This check is expensive! */ |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2362 | if (PyErr_Occurred()) { |
Jeremy Hylton | 904ed86 | 2003-11-05 17:29:35 +0000 | [diff] [blame] | 2363 | char buf[1024]; |
| 2364 | sprintf(buf, "Stack unwind with exception " |
| 2365 | "set and why=%d", why); |
| 2366 | Py_FatalError(buf); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 2367 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2368 | } |
| 2369 | #endif |
| 2370 | |
| 2371 | /* Log traceback info if this is a real exception */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2372 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2373 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2374 | PyTraceBack_Here(f); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2375 | |
Fred Drake | 8f51f54 | 2001-10-04 14:48:42 +0000 | [diff] [blame] | 2376 | if (tstate->c_tracefunc != NULL) |
| 2377 | call_exc_trace(tstate->c_tracefunc, |
| 2378 | tstate->c_traceobj, f); |
Guido van Rossum | 014518f | 1998-11-23 21:09:51 +0000 | [diff] [blame] | 2379 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2380 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2381 | /* For the rest, treat WHY_RERAISE as WHY_EXCEPTION */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2382 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2383 | if (why == WHY_RERAISE) |
| 2384 | why = WHY_EXCEPTION; |
| 2385 | |
| 2386 | /* Unwind stacks if a (pseudo) exception occurred */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2387 | |
Raymond Hettinger | 1dd8309 | 2004-02-06 18:32:33 +0000 | [diff] [blame] | 2388 | fast_block_end: |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 2389 | while (why != WHY_NOT && f->f_iblock > 0) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2390 | PyTryBlock *b = PyFrame_BlockPop(f); |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2391 | |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 2392 | assert(why != WHY_YIELD); |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2393 | if (b->b_type == SETUP_LOOP && why == WHY_CONTINUE) { |
| 2394 | /* For a continue inside a try block, |
| 2395 | don't pop the block for the loop. */ |
Thomas Wouters | 1ee6422 | 2001-09-24 19:32:01 +0000 | [diff] [blame] | 2396 | PyFrame_BlockSetup(f, b->b_type, b->b_handler, |
| 2397 | b->b_level); |
Jeremy Hylton | 3faa52e | 2001-02-01 22:48:12 +0000 | [diff] [blame] | 2398 | why = WHY_NOT; |
| 2399 | JUMPTO(PyInt_AS_LONG(retval)); |
| 2400 | Py_DECREF(retval); |
| 2401 | break; |
| 2402 | } |
| 2403 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2404 | while (STACK_LEVEL() > b->b_level) { |
| 2405 | v = POP(); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2406 | Py_XDECREF(v); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2407 | } |
| 2408 | if (b->b_type == SETUP_LOOP && why == WHY_BREAK) { |
| 2409 | why = WHY_NOT; |
| 2410 | JUMPTO(b->b_handler); |
| 2411 | break; |
| 2412 | } |
| 2413 | if (b->b_type == SETUP_FINALLY || |
Guido van Rossum | 150b2df | 1996-12-05 23:17:11 +0000 | [diff] [blame] | 2414 | (b->b_type == SETUP_EXCEPT && |
| 2415 | why == WHY_EXCEPTION)) { |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2416 | if (why == WHY_EXCEPTION) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2417 | PyObject *exc, *val, *tb; |
| 2418 | PyErr_Fetch(&exc, &val, &tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2419 | if (val == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2420 | val = Py_None; |
| 2421 | Py_INCREF(val); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2422 | } |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2423 | /* Make the raw exception data |
| 2424 | available to the handler, |
| 2425 | so a program can emulate the |
| 2426 | Python main loop. Don't do |
| 2427 | this for 'finally'. */ |
| 2428 | if (b->b_type == SETUP_EXCEPT) { |
Barry Warsaw | eaedc7c | 1997-08-28 22:36:40 +0000 | [diff] [blame] | 2429 | PyErr_NormalizeException( |
| 2430 | &exc, &val, &tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2431 | set_exc_info(tstate, |
| 2432 | exc, val, tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2433 | } |
Jeremy Hylton | c631489 | 2001-09-26 19:24:45 +0000 | [diff] [blame] | 2434 | if (tb == NULL) { |
| 2435 | Py_INCREF(Py_None); |
| 2436 | PUSH(Py_None); |
| 2437 | } else |
| 2438 | PUSH(tb); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2439 | PUSH(val); |
| 2440 | PUSH(exc); |
| 2441 | } |
| 2442 | else { |
Raymond Hettinger | 06032cb | 2004-04-06 09:37:35 +0000 | [diff] [blame] | 2443 | if (why & (WHY_RETURN | WHY_CONTINUE)) |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2444 | PUSH(retval); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2445 | v = PyInt_FromLong((long)why); |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2446 | PUSH(v); |
| 2447 | } |
| 2448 | why = WHY_NOT; |
| 2449 | JUMPTO(b->b_handler); |
| 2450 | break; |
| 2451 | } |
| 2452 | } /* unwind stack */ |
| 2453 | |
| 2454 | /* End the loop if we still have an error (or return) */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2455 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2456 | if (why != WHY_NOT) |
| 2457 | break; |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 2458 | READ_TIMESTAMP(loop1); |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2459 | |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2460 | } /* main loop */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2461 | |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 2462 | assert(why != WHY_YIELD); |
| 2463 | /* Pop remaining stack entries. */ |
| 2464 | while (!EMPTY()) { |
| 2465 | v = POP(); |
| 2466 | Py_XDECREF(v); |
Guido van Rossum | 35974fb | 2001-12-06 21:28:18 +0000 | [diff] [blame] | 2467 | } |
| 2468 | |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 2469 | if (why != WHY_RETURN) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2470 | retval = NULL; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2471 | |
Raymond Hettinger | 1dd8309 | 2004-02-06 18:32:33 +0000 | [diff] [blame] | 2472 | fast_yield: |
Fred Drake | 9e3ad78 | 2001-07-03 23:39:52 +0000 | [diff] [blame] | 2473 | if (tstate->use_tracing) { |
Barry Warsaw | e2eca0b | 2005-08-15 18:14:19 +0000 | [diff] [blame] | 2474 | if (tstate->c_tracefunc) { |
| 2475 | if (why == WHY_RETURN || why == WHY_YIELD) { |
| 2476 | if (call_trace(tstate->c_tracefunc, |
| 2477 | tstate->c_traceobj, f, |
| 2478 | PyTrace_RETURN, retval)) { |
| 2479 | Py_XDECREF(retval); |
| 2480 | retval = NULL; |
| 2481 | why = WHY_EXCEPTION; |
| 2482 | } |
| 2483 | } |
| 2484 | else if (why == WHY_EXCEPTION) { |
| 2485 | call_trace_protected(tstate->c_tracefunc, |
| 2486 | tstate->c_traceobj, f, |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 2487 | PyTrace_RETURN, NULL); |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2488 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2489 | } |
Fred Drake | 8f51f54 | 2001-10-04 14:48:42 +0000 | [diff] [blame] | 2490 | if (tstate->c_profilefunc) { |
Fred Drake | 4ec5d56 | 2001-10-04 19:26:43 +0000 | [diff] [blame] | 2491 | if (why == WHY_EXCEPTION) |
| 2492 | call_trace_protected(tstate->c_profilefunc, |
| 2493 | tstate->c_profileobj, f, |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 2494 | PyTrace_RETURN, NULL); |
Fred Drake | 4ec5d56 | 2001-10-04 19:26:43 +0000 | [diff] [blame] | 2495 | else if (call_trace(tstate->c_profilefunc, |
| 2496 | tstate->c_profileobj, f, |
| 2497 | PyTrace_RETURN, retval)) { |
Fred Drake | 9e3ad78 | 2001-07-03 23:39:52 +0000 | [diff] [blame] | 2498 | Py_XDECREF(retval); |
| 2499 | retval = NULL; |
| 2500 | why = WHY_EXCEPTION; |
| 2501 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 2502 | } |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2503 | } |
Guido van Rossum | a424013 | 1997-01-21 21:18:36 +0000 | [diff] [blame] | 2504 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2505 | if (tstate->frame->f_exc_type != NULL) |
| 2506 | reset_exc_info(tstate); |
| 2507 | else { |
| 2508 | assert(tstate->frame->f_exc_value == NULL); |
| 2509 | assert(tstate->frame->f_exc_traceback == NULL); |
| 2510 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2511 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2512 | /* pop frame */ |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 2513 | exit_eval_frame: |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 2514 | Py_LeaveRecursiveCall(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2515 | tstate->frame = f->f_back; |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2516 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 2517 | return retval; |
Guido van Rossum | 374a922 | 1991-04-04 10:40:29 +0000 | [diff] [blame] | 2518 | } |
| 2519 | |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 2520 | /* This is gonna seem *real weird*, but if you put some other code between |
Martin v. Löwis | 8d97e33 | 2004-06-27 15:43:12 +0000 | [diff] [blame] | 2521 | PyEval_EvalFrame() and PyEval_EvalCodeEx() you will need to adjust |
Guido van Rossum | c2e2074 | 2006-02-27 22:32:47 +0000 | [diff] [blame] | 2522 | the test in the if statements in Misc/gdbinit (pystack and pystackv). */ |
Skip Montanaro | 786ea6b | 2004-03-01 15:44:05 +0000 | [diff] [blame] | 2523 | |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 2524 | PyObject * |
| 2525 | PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals, |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2526 | PyObject **args, int argcount, PyObject **kws, int kwcount, |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2527 | PyObject **defs, int defcount, PyObject *kwdefs, PyObject *closure) |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2528 | { |
| 2529 | register PyFrameObject *f; |
| 2530 | register PyObject *retval = NULL; |
| 2531 | register PyObject **fastlocals, **freevars; |
| 2532 | PyThreadState *tstate = PyThreadState_GET(); |
| 2533 | PyObject *x, *u; |
| 2534 | |
| 2535 | if (globals == NULL) { |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 2536 | PyErr_SetString(PyExc_SystemError, |
Jeremy Hylton | 910d7d4 | 2001-08-12 21:52:24 +0000 | [diff] [blame] | 2537 | "PyEval_EvalCodeEx: NULL globals"); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2538 | return NULL; |
| 2539 | } |
| 2540 | |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 2541 | assert(tstate != NULL); |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 2542 | assert(globals != NULL); |
| 2543 | f = PyFrame_New(tstate, co, globals, locals); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2544 | if (f == NULL) |
| 2545 | return NULL; |
| 2546 | |
| 2547 | fastlocals = f->f_localsplus; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2548 | freevars = f->f_localsplus + co->co_nlocals; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2549 | |
| 2550 | if (co->co_argcount > 0 || |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2551 | co->co_kwonlyargcount > 0 || |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2552 | co->co_flags & (CO_VARARGS | CO_VARKEYWORDS)) { |
| 2553 | int i; |
| 2554 | int n = argcount; |
| 2555 | PyObject *kwdict = NULL; |
| 2556 | if (co->co_flags & CO_VARKEYWORDS) { |
| 2557 | kwdict = PyDict_New(); |
| 2558 | if (kwdict == NULL) |
| 2559 | goto fail; |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2560 | i = co->co_argcount + co->co_kwonlyargcount; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2561 | if (co->co_flags & CO_VARARGS) |
| 2562 | i++; |
| 2563 | SETLOCAL(i, kwdict); |
| 2564 | } |
| 2565 | if (argcount > co->co_argcount) { |
| 2566 | if (!(co->co_flags & CO_VARARGS)) { |
| 2567 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 00bc0e0 | 2007-10-15 02:52:41 +0000 | [diff] [blame] | 2568 | "%U() takes %s %d " |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2569 | "%spositional argument%s (%d given)", |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 2570 | co->co_name, |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2571 | defcount ? "at most" : "exactly", |
| 2572 | co->co_argcount, |
| 2573 | kwcount ? "non-keyword " : "", |
| 2574 | co->co_argcount == 1 ? "" : "s", |
| 2575 | argcount); |
| 2576 | goto fail; |
| 2577 | } |
| 2578 | n = co->co_argcount; |
| 2579 | } |
| 2580 | for (i = 0; i < n; i++) { |
| 2581 | x = args[i]; |
| 2582 | Py_INCREF(x); |
| 2583 | SETLOCAL(i, x); |
| 2584 | } |
| 2585 | if (co->co_flags & CO_VARARGS) { |
| 2586 | u = PyTuple_New(argcount - n); |
| 2587 | if (u == NULL) |
| 2588 | goto fail; |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2589 | SETLOCAL(co->co_argcount + co->co_kwonlyargcount, u); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2590 | for (i = n; i < argcount; i++) { |
| 2591 | x = args[i]; |
| 2592 | Py_INCREF(x); |
| 2593 | PyTuple_SET_ITEM(u, i-n, x); |
| 2594 | } |
| 2595 | } |
| 2596 | for (i = 0; i < kwcount; i++) { |
| 2597 | PyObject *keyword = kws[2*i]; |
| 2598 | PyObject *value = kws[2*i + 1]; |
| 2599 | int j; |
Neal Norwitz | da059e3 | 2007-08-26 05:33:45 +0000 | [diff] [blame] | 2600 | if (keyword == NULL || !PyUnicode_Check(keyword)) { |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2601 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 00bc0e0 | 2007-10-15 02:52:41 +0000 | [diff] [blame] | 2602 | "%U() keywords must be strings", |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 2603 | co->co_name); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2604 | goto fail; |
| 2605 | } |
| 2606 | /* XXX slow -- speed up using dictionary? */ |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2607 | for (j = 0; |
| 2608 | j < co->co_argcount + co->co_kwonlyargcount; |
| 2609 | j++) { |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2610 | PyObject *nm = PyTuple_GET_ITEM( |
| 2611 | co->co_varnames, j); |
| 2612 | int cmp = PyObject_RichCompareBool( |
| 2613 | keyword, nm, Py_EQ); |
| 2614 | if (cmp > 0) |
| 2615 | break; |
| 2616 | else if (cmp < 0) |
| 2617 | goto fail; |
| 2618 | } |
| 2619 | /* Check errors from Compare */ |
| 2620 | if (PyErr_Occurred()) |
| 2621 | goto fail; |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2622 | if (j >= co->co_argcount + co->co_kwonlyargcount) { |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2623 | if (kwdict == NULL) { |
| 2624 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 00bc0e0 | 2007-10-15 02:52:41 +0000 | [diff] [blame] | 2625 | "%U() got an unexpected " |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 2626 | "keyword argument '%S'", |
| 2627 | co->co_name, |
| 2628 | keyword); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2629 | goto fail; |
| 2630 | } |
| 2631 | PyDict_SetItem(kwdict, keyword, value); |
| 2632 | } |
| 2633 | else { |
| 2634 | if (GETLOCAL(j) != NULL) { |
| 2635 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 00bc0e0 | 2007-10-15 02:52:41 +0000 | [diff] [blame] | 2636 | "%U() got multiple " |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2637 | "values for keyword " |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 2638 | "argument '%S'", |
| 2639 | co->co_name, |
| 2640 | keyword); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2641 | goto fail; |
| 2642 | } |
| 2643 | Py_INCREF(value); |
| 2644 | SETLOCAL(j, value); |
| 2645 | } |
| 2646 | } |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2647 | if (co->co_kwonlyargcount > 0) { |
| 2648 | for (i = co->co_argcount; |
| 2649 | i < co->co_argcount + co->co_kwonlyargcount; |
| 2650 | i++) { |
Guido van Rossum | 29602e4 | 2006-11-22 04:45:33 +0000 | [diff] [blame] | 2651 | PyObject *name, *def; |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2652 | if (GETLOCAL(i) != NULL) |
| 2653 | continue; |
Guido van Rossum | 29602e4 | 2006-11-22 04:45:33 +0000 | [diff] [blame] | 2654 | name = PyTuple_GET_ITEM(co->co_varnames, i); |
| 2655 | def = NULL; |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2656 | if (kwdefs != NULL) |
| 2657 | def = PyDict_GetItem(kwdefs, name); |
| 2658 | if (def != NULL) { |
| 2659 | Py_INCREF(def); |
| 2660 | SETLOCAL(i, def); |
| 2661 | continue; |
| 2662 | } |
| 2663 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 00bc0e0 | 2007-10-15 02:52:41 +0000 | [diff] [blame] | 2664 | "%U() needs keyword-only argument %S", |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 2665 | co->co_name, name); |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2666 | goto fail; |
| 2667 | } |
| 2668 | } |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2669 | if (argcount < co->co_argcount) { |
| 2670 | int m = co->co_argcount - defcount; |
| 2671 | for (i = argcount; i < m; i++) { |
| 2672 | if (GETLOCAL(i) == NULL) { |
| 2673 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 00bc0e0 | 2007-10-15 02:52:41 +0000 | [diff] [blame] | 2674 | "%U() takes %s %d " |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 2675 | "%spositional argument%s " |
| 2676 | "(%d given)", |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 2677 | co->co_name, |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2678 | ((co->co_flags & CO_VARARGS) || |
| 2679 | defcount) ? "at least" |
| 2680 | : "exactly", |
| 2681 | m, kwcount ? "non-keyword " : "", |
| 2682 | m == 1 ? "" : "s", i); |
| 2683 | goto fail; |
| 2684 | } |
| 2685 | } |
| 2686 | if (n > m) |
| 2687 | i = n - m; |
| 2688 | else |
| 2689 | i = 0; |
| 2690 | for (; i < defcount; i++) { |
| 2691 | if (GETLOCAL(m+i) == NULL) { |
| 2692 | PyObject *def = defs[i]; |
| 2693 | Py_INCREF(def); |
| 2694 | SETLOCAL(m+i, def); |
| 2695 | } |
| 2696 | } |
| 2697 | } |
| 2698 | } |
| 2699 | else { |
| 2700 | if (argcount > 0 || kwcount > 0) { |
| 2701 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 00bc0e0 | 2007-10-15 02:52:41 +0000 | [diff] [blame] | 2702 | "%U() takes no arguments (%d given)", |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 2703 | co->co_name, |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2704 | argcount + kwcount); |
| 2705 | goto fail; |
| 2706 | } |
| 2707 | } |
| 2708 | /* Allocate and initialize storage for cell vars, and copy free |
| 2709 | vars into frame. This isn't too efficient right now. */ |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2710 | if (PyTuple_GET_SIZE(co->co_cellvars)) { |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 2711 | int i, j, nargs, found; |
Martin v. Löwis | 5b22213 | 2007-06-10 09:51:05 +0000 | [diff] [blame] | 2712 | Py_UNICODE *cellname, *argname; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2713 | PyObject *c; |
| 2714 | |
| 2715 | nargs = co->co_argcount; |
| 2716 | if (co->co_flags & CO_VARARGS) |
| 2717 | nargs++; |
| 2718 | if (co->co_flags & CO_VARKEYWORDS) |
| 2719 | nargs++; |
| 2720 | |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 2721 | /* Initialize each cell var, taking into account |
| 2722 | cell vars that are initialized from arguments. |
| 2723 | |
| 2724 | Should arrange for the compiler to put cellvars |
| 2725 | that are arguments at the beginning of the cellvars |
| 2726 | list so that we can march over it more efficiently? |
| 2727 | */ |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2728 | for (i = 0; i < PyTuple_GET_SIZE(co->co_cellvars); ++i) { |
Martin v. Löwis | 5b22213 | 2007-06-10 09:51:05 +0000 | [diff] [blame] | 2729 | cellname = PyUnicode_AS_UNICODE( |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2730 | PyTuple_GET_ITEM(co->co_cellvars, i)); |
| 2731 | found = 0; |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 2732 | for (j = 0; j < nargs; j++) { |
Martin v. Löwis | 5b22213 | 2007-06-10 09:51:05 +0000 | [diff] [blame] | 2733 | argname = PyUnicode_AS_UNICODE( |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2734 | PyTuple_GET_ITEM(co->co_varnames, j)); |
Martin v. Löwis | 5b22213 | 2007-06-10 09:51:05 +0000 | [diff] [blame] | 2735 | if (Py_UNICODE_strcmp(cellname, argname) == 0) { |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2736 | c = PyCell_New(GETLOCAL(j)); |
| 2737 | if (c == NULL) |
| 2738 | goto fail; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2739 | GETLOCAL(co->co_nlocals + i) = c; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2740 | found = 1; |
| 2741 | break; |
| 2742 | } |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2743 | } |
| 2744 | if (found == 0) { |
| 2745 | c = PyCell_New(NULL); |
| 2746 | if (c == NULL) |
| 2747 | goto fail; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2748 | SETLOCAL(co->co_nlocals + i, c); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2749 | } |
| 2750 | } |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2751 | } |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2752 | if (PyTuple_GET_SIZE(co->co_freevars)) { |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2753 | int i; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2754 | for (i = 0; i < PyTuple_GET_SIZE(co->co_freevars); ++i) { |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2755 | PyObject *o = PyTuple_GET_ITEM(closure, i); |
| 2756 | Py_INCREF(o); |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2757 | freevars[PyTuple_GET_SIZE(co->co_cellvars) + i] = o; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2758 | } |
| 2759 | } |
| 2760 | |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2761 | if (co->co_flags & CO_GENERATOR) { |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 2762 | /* Don't need to keep the reference to f_back, it will be set |
| 2763 | * when the generator is resumed. */ |
Tim Peters | 5ba5866 | 2001-07-16 02:29:45 +0000 | [diff] [blame] | 2764 | Py_XDECREF(f->f_back); |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 2765 | f->f_back = NULL; |
| 2766 | |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 2767 | PCALL(PCALL_GENERATOR); |
| 2768 | |
Neil Schemenauer | 2b13ce8 | 2001-06-21 02:41:10 +0000 | [diff] [blame] | 2769 | /* Create a new generator that owns the ready to run frame |
| 2770 | * and return that as the value. */ |
Martin v. Löwis | e440e47 | 2004-06-01 15:22:42 +0000 | [diff] [blame] | 2771 | return PyGen_New(f); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2772 | } |
| 2773 | |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 2774 | retval = PyEval_EvalFrameEx(f,0); |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2775 | |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 2776 | fail: /* Jump here from prelude on failure */ |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2777 | |
Tim Peters | b13680b | 2001-11-27 23:29:29 +0000 | [diff] [blame] | 2778 | /* decref'ing the frame can cause __del__ methods to get invoked, |
| 2779 | which can call back into Python. While we're done with the |
| 2780 | current Python frame (f), the associated C stack is still in use, |
| 2781 | so recursion_depth must be boosted for the duration. |
| 2782 | */ |
| 2783 | assert(tstate != NULL); |
| 2784 | ++tstate->recursion_depth; |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 2785 | Py_DECREF(f); |
Tim Peters | b13680b | 2001-11-27 23:29:29 +0000 | [diff] [blame] | 2786 | --tstate->recursion_depth; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 2787 | return retval; |
| 2788 | } |
| 2789 | |
| 2790 | |
Guido van Rossum | c9fbb72 | 2003-03-01 03:36:33 +0000 | [diff] [blame] | 2791 | /* Implementation notes for set_exc_info() and reset_exc_info(): |
| 2792 | |
| 2793 | - Below, 'exc_ZZZ' stands for 'exc_type', 'exc_value' and |
| 2794 | 'exc_traceback'. These always travel together. |
| 2795 | |
| 2796 | - tstate->curexc_ZZZ is the "hot" exception that is set by |
| 2797 | PyErr_SetString(), cleared by PyErr_Clear(), and so on. |
| 2798 | |
| 2799 | - Once an exception is caught by an except clause, it is transferred |
| 2800 | from tstate->curexc_ZZZ to tstate->exc_ZZZ, from which sys.exc_info() |
| 2801 | can pick it up. This is the primary task of set_exc_info(). |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2802 | XXX That can't be right: set_exc_info() doesn't look at tstate->curexc_ZZZ. |
Guido van Rossum | c9fbb72 | 2003-03-01 03:36:33 +0000 | [diff] [blame] | 2803 | |
| 2804 | - Now let me explain the complicated dance with frame->f_exc_ZZZ. |
| 2805 | |
| 2806 | Long ago, when none of this existed, there were just a few globals: |
| 2807 | one set corresponding to the "hot" exception, and one set |
| 2808 | corresponding to sys.exc_ZZZ. (Actually, the latter weren't C |
| 2809 | globals; they were simply stored as sys.exc_ZZZ. For backwards |
| 2810 | compatibility, they still are!) The problem was that in code like |
| 2811 | this: |
| 2812 | |
| 2813 | try: |
| 2814 | "something that may fail" |
| 2815 | except "some exception": |
| 2816 | "do something else first" |
| 2817 | "print the exception from sys.exc_ZZZ." |
| 2818 | |
| 2819 | if "do something else first" invoked something that raised and caught |
| 2820 | an exception, sys.exc_ZZZ were overwritten. That was a frequent |
| 2821 | cause of subtle bugs. I fixed this by changing the semantics as |
| 2822 | follows: |
| 2823 | |
| 2824 | - Within one frame, sys.exc_ZZZ will hold the last exception caught |
| 2825 | *in that frame*. |
| 2826 | |
| 2827 | - But initially, and as long as no exception is caught in a given |
| 2828 | frame, sys.exc_ZZZ will hold the last exception caught in the |
| 2829 | previous frame (or the frame before that, etc.). |
| 2830 | |
| 2831 | The first bullet fixed the bug in the above example. The second |
| 2832 | bullet was for backwards compatibility: it was (and is) common to |
| 2833 | have a function that is called when an exception is caught, and to |
| 2834 | have that function access the caught exception via sys.exc_ZZZ. |
| 2835 | (Example: traceback.print_exc()). |
| 2836 | |
| 2837 | At the same time I fixed the problem that sys.exc_ZZZ weren't |
| 2838 | thread-safe, by introducing sys.exc_info() which gets it from tstate; |
| 2839 | but that's really a separate improvement. |
| 2840 | |
| 2841 | The reset_exc_info() function in ceval.c restores the tstate->exc_ZZZ |
| 2842 | variables to what they were before the current frame was called. The |
| 2843 | set_exc_info() function saves them on the frame so that |
| 2844 | reset_exc_info() can restore them. The invariant is that |
| 2845 | frame->f_exc_ZZZ is NULL iff the current frame never caught an |
| 2846 | exception (where "catching" an exception applies only to successful |
| 2847 | except clauses); and if the current frame ever caught an exception, |
| 2848 | frame->f_exc_ZZZ is the exception that was stored in tstate->exc_ZZZ |
| 2849 | at the start of the current frame. |
| 2850 | |
| 2851 | */ |
| 2852 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2853 | static void |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2854 | set_exc_info(PyThreadState *tstate, |
| 2855 | PyObject *type, PyObject *value, PyObject *tb) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2856 | { |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2857 | PyFrameObject *frame = tstate->frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2858 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 2859 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2860 | assert(type != NULL); |
| 2861 | assert(frame != NULL); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2862 | if (frame->f_exc_type == NULL) { |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2863 | assert(frame->f_exc_value == NULL); |
| 2864 | assert(frame->f_exc_traceback == NULL); |
| 2865 | /* This frame didn't catch an exception before. */ |
| 2866 | /* Save previous exception of this thread in this frame. */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2867 | if (tstate->exc_type == NULL) { |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2868 | /* XXX Why is this set to Py_None? */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2869 | Py_INCREF(Py_None); |
| 2870 | tstate->exc_type = Py_None; |
| 2871 | } |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2872 | Py_INCREF(tstate->exc_type); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2873 | Py_XINCREF(tstate->exc_value); |
| 2874 | Py_XINCREF(tstate->exc_traceback); |
| 2875 | frame->f_exc_type = tstate->exc_type; |
| 2876 | frame->f_exc_value = tstate->exc_value; |
| 2877 | frame->f_exc_traceback = tstate->exc_traceback; |
| 2878 | } |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2879 | /* Set new exception for this thread. */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2880 | tmp_type = tstate->exc_type; |
| 2881 | tmp_value = tstate->exc_value; |
| 2882 | tmp_tb = tstate->exc_traceback; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2883 | Py_INCREF(type); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2884 | Py_XINCREF(value); |
| 2885 | Py_XINCREF(tb); |
| 2886 | tstate->exc_type = type; |
| 2887 | tstate->exc_value = value; |
| 2888 | tstate->exc_traceback = tb; |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2889 | PyException_SetTraceback(value, tb); |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2890 | Py_XDECREF(tmp_type); |
| 2891 | Py_XDECREF(tmp_value); |
| 2892 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2893 | } |
| 2894 | |
| 2895 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2896 | reset_exc_info(PyThreadState *tstate) |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2897 | { |
| 2898 | PyFrameObject *frame; |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2899 | PyObject *tmp_type, *tmp_value, *tmp_tb; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2900 | |
| 2901 | /* It's a precondition that the thread state's frame caught an |
| 2902 | * exception -- verify in a debug build. |
| 2903 | */ |
| 2904 | assert(tstate != NULL); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2905 | frame = tstate->frame; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2906 | assert(frame != NULL); |
| 2907 | assert(frame->f_exc_type != NULL); |
| 2908 | |
| 2909 | /* Copy the frame's exception info back to the thread state. */ |
| 2910 | tmp_type = tstate->exc_type; |
| 2911 | tmp_value = tstate->exc_value; |
| 2912 | tmp_tb = tstate->exc_traceback; |
| 2913 | Py_INCREF(frame->f_exc_type); |
| 2914 | Py_XINCREF(frame->f_exc_value); |
| 2915 | Py_XINCREF(frame->f_exc_traceback); |
| 2916 | tstate->exc_type = frame->f_exc_type; |
| 2917 | tstate->exc_value = frame->f_exc_value; |
| 2918 | tstate->exc_traceback = frame->f_exc_traceback; |
| 2919 | Py_XDECREF(tmp_type); |
| 2920 | Py_XDECREF(tmp_value); |
| 2921 | Py_XDECREF(tmp_tb); |
| 2922 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2923 | /* Clear the frame's exception info. */ |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2924 | tmp_type = frame->f_exc_type; |
| 2925 | tmp_value = frame->f_exc_value; |
| 2926 | tmp_tb = frame->f_exc_traceback; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2927 | frame->f_exc_type = NULL; |
| 2928 | frame->f_exc_value = NULL; |
| 2929 | frame->f_exc_traceback = NULL; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 2930 | Py_DECREF(tmp_type); |
Guido van Rossum | df4c308 | 1997-05-20 17:06:11 +0000 | [diff] [blame] | 2931 | Py_XDECREF(tmp_value); |
| 2932 | Py_XDECREF(tmp_tb); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 2933 | } |
| 2934 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2935 | /* Logic for the raise statement (too complicated for inlining). |
| 2936 | This *consumes* a reference count to each of its arguments. */ |
Raymond Hettinger | 7c95865 | 2004-04-06 10:11:10 +0000 | [diff] [blame] | 2937 | static enum why_code |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 2938 | do_raise(PyObject *exc, PyObject *cause) |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2939 | { |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2940 | PyObject *type = NULL, *value = NULL, *tb = NULL; |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 2941 | |
| 2942 | if (exc == NULL) { |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 2943 | /* Reraise */ |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 2944 | PyThreadState *tstate = PyThreadState_GET(); |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 2945 | type = tstate->exc_type; |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 2946 | value = tstate->exc_value; |
| 2947 | tb = tstate->exc_traceback; |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2948 | if (type == Py_None) { |
| 2949 | PyErr_SetString(PyExc_RuntimeError, |
| 2950 | "No active exception to reraise"); |
| 2951 | return WHY_EXCEPTION; |
| 2952 | } |
| 2953 | Py_XINCREF(type); |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 2954 | Py_XINCREF(value); |
| 2955 | Py_XINCREF(tb); |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2956 | PyErr_Restore(type, value, tb); |
| 2957 | return WHY_RERAISE; |
Guido van Rossum | d295f12 | 1998-04-09 21:39:57 +0000 | [diff] [blame] | 2958 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 2959 | |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2960 | /* We support the following forms of raise: |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 2961 | raise |
| 2962 | raise <instance> |
| 2963 | raise <type> */ |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2964 | |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 2965 | if (PyExceptionClass_Check(exc)) { |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2966 | type = exc; |
| 2967 | value = PyObject_CallObject(exc, NULL); |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 2968 | if (value == NULL) |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2969 | goto raise_error; |
| 2970 | } |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 2971 | else if (PyExceptionInstance_Check(exc)) { |
| 2972 | value = exc; |
| 2973 | type = PyExceptionInstance_Class(exc); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 2974 | Py_INCREF(type); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2975 | } |
| 2976 | else { |
| 2977 | /* Not something you can raise. You get an exception |
| 2978 | anyway, just not what you specified :-) */ |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2979 | Py_DECREF(exc); |
Guido van Rossum | 45aecf4 | 2006-03-15 04:58:47 +0000 | [diff] [blame] | 2980 | PyErr_SetString(PyExc_TypeError, |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2981 | "exceptions must derive from BaseException"); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 2982 | goto raise_error; |
| 2983 | } |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 2984 | |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 2985 | tb = PyException_GetTraceback(value); |
| 2986 | if (cause) { |
| 2987 | PyObject *fixed_cause; |
| 2988 | if (PyExceptionClass_Check(cause)) { |
| 2989 | fixed_cause = PyObject_CallObject(cause, NULL); |
| 2990 | if (fixed_cause == NULL) |
| 2991 | goto raise_error; |
| 2992 | Py_DECREF(cause); |
| 2993 | } |
| 2994 | else if (PyExceptionInstance_Check(cause)) { |
| 2995 | fixed_cause = cause; |
| 2996 | } |
| 2997 | else { |
| 2998 | PyErr_SetString(PyExc_TypeError, |
| 2999 | "exception causes must derive from " |
| 3000 | "BaseException"); |
| 3001 | goto raise_error; |
| 3002 | } |
| 3003 | PyException_SetCause(value, fixed_cause); |
| 3004 | } |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 3005 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3006 | PyErr_Restore(type, value, tb); |
Collin Winter | 828f04a | 2007-08-31 00:04:24 +0000 | [diff] [blame] | 3007 | return WHY_EXCEPTION; |
| 3008 | |
| 3009 | raise_error: |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3010 | Py_XDECREF(value); |
| 3011 | Py_XDECREF(type); |
| 3012 | Py_XDECREF(tb); |
Collin Winter | 1966f1c | 2007-09-01 20:26:44 +0000 | [diff] [blame] | 3013 | Py_XDECREF(cause); |
Guido van Rossum | 0aa9ee6 | 1996-12-10 18:07:35 +0000 | [diff] [blame] | 3014 | return WHY_EXCEPTION; |
| 3015 | } |
| 3016 | |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 3017 | /* Iterate v argcnt times and store the results on the stack (via decreasing |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 3018 | sp). Return 1 for success, 0 if error. |
| 3019 | |
| 3020 | If argcntafter == -1, do a simple unpack. If it is >= 0, do an unpack |
| 3021 | with a variable target. |
| 3022 | */ |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 3023 | |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 3024 | static int |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 3025 | unpack_iterable(PyObject *v, int argcnt, int argcntafter, PyObject **sp) |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 3026 | { |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 3027 | int i = 0, j = 0; |
| 3028 | Py_ssize_t ll = 0; |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 3029 | PyObject *it; /* iter(v) */ |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 3030 | PyObject *w; |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 3031 | PyObject *l = NULL; /* variable list */ |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3032 | |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 3033 | assert(v != NULL); |
| 3034 | |
| 3035 | it = PyObject_GetIter(v); |
| 3036 | if (it == NULL) |
| 3037 | goto Error; |
| 3038 | |
| 3039 | for (; i < argcnt; i++) { |
| 3040 | w = PyIter_Next(it); |
| 3041 | if (w == NULL) { |
| 3042 | /* Iterator done, via error or exhaustion. */ |
| 3043 | if (!PyErr_Occurred()) { |
| 3044 | PyErr_Format(PyExc_ValueError, |
| 3045 | "need more than %d value%s to unpack", |
| 3046 | i, i == 1 ? "" : "s"); |
| 3047 | } |
| 3048 | goto Error; |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 3049 | } |
| 3050 | *--sp = w; |
| 3051 | } |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 3052 | |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 3053 | if (argcntafter == -1) { |
| 3054 | /* We better have exhausted the iterator now. */ |
| 3055 | w = PyIter_Next(it); |
| 3056 | if (w == NULL) { |
| 3057 | if (PyErr_Occurred()) |
| 3058 | goto Error; |
| 3059 | Py_DECREF(it); |
| 3060 | return 1; |
| 3061 | } |
| 3062 | Py_DECREF(w); |
| 3063 | PyErr_SetString(PyExc_ValueError, "too many values to unpack"); |
| 3064 | goto Error; |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 3065 | } |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 3066 | |
| 3067 | l = PySequence_List(it); |
| 3068 | if (l == NULL) |
| 3069 | goto Error; |
| 3070 | *--sp = l; |
| 3071 | i++; |
| 3072 | |
| 3073 | ll = PyList_GET_SIZE(l); |
| 3074 | if (ll < argcntafter) { |
| 3075 | PyErr_Format(PyExc_ValueError, "need more than %zd values to unpack", |
| 3076 | argcnt + ll); |
| 3077 | goto Error; |
| 3078 | } |
| 3079 | |
| 3080 | /* Pop the "after-variable" args off the list. */ |
| 3081 | for (j = argcntafter; j > 0; j--, i++) { |
| 3082 | *--sp = PyList_GET_ITEM(l, ll - j); |
| 3083 | } |
| 3084 | /* Resize the list. */ |
Martin v. Löwis | 9f2e346 | 2007-07-21 17:22:18 +0000 | [diff] [blame] | 3085 | Py_Size(l) = ll - argcntafter; |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 3086 | Py_DECREF(it); |
| 3087 | return 1; |
| 3088 | |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 3089 | Error: |
Barry Warsaw | 9101055 | 1997-08-25 22:30:51 +0000 | [diff] [blame] | 3090 | for (; i > 0; i--, sp++) |
| 3091 | Py_DECREF(*sp); |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 3092 | Py_XDECREF(it); |
Barry Warsaw | e42b18f | 1997-08-25 22:13:04 +0000 | [diff] [blame] | 3093 | return 0; |
| 3094 | } |
| 3095 | |
| 3096 | |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 3097 | #ifdef LLTRACE |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3098 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3099 | prtrace(PyObject *v, char *str) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3100 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3101 | printf("%s ", str); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3102 | if (PyObject_Print(v, stdout, 0) != 0) |
| 3103 | PyErr_Clear(); /* Don't know what else to do */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3104 | printf("\n"); |
Guido van Rossum | cc229ea | 2000-05-04 00:55:17 +0000 | [diff] [blame] | 3105 | return 1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3106 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3107 | #endif |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3108 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 3109 | static void |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3110 | call_exc_trace(Py_tracefunc func, PyObject *self, PyFrameObject *f) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 3111 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3112 | PyObject *type, *value, *traceback, *arg; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 3113 | int err; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3114 | PyErr_Fetch(&type, &value, &traceback); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 3115 | if (value == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3116 | value = Py_None; |
| 3117 | Py_INCREF(value); |
Guido van Rossum | bd9ccca | 1992-04-09 14:58:08 +0000 | [diff] [blame] | 3118 | } |
Raymond Hettinger | 8ae4689 | 2003-10-12 19:09:37 +0000 | [diff] [blame] | 3119 | arg = PyTuple_Pack(3, type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 3120 | if (arg == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3121 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 3122 | return; |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 3123 | } |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3124 | err = call_trace(func, self, f, PyTrace_EXCEPTION, arg); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3125 | Py_DECREF(arg); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 3126 | if (err == 0) |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3127 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 3128 | else { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3129 | Py_XDECREF(type); |
| 3130 | Py_XDECREF(value); |
| 3131 | Py_XDECREF(traceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 3132 | } |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 3133 | } |
| 3134 | |
Fred Drake | 4ec5d56 | 2001-10-04 19:26:43 +0000 | [diff] [blame] | 3135 | static void |
| 3136 | call_trace_protected(Py_tracefunc func, PyObject *obj, PyFrameObject *frame, |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 3137 | int what, PyObject *arg) |
Fred Drake | 4ec5d56 | 2001-10-04 19:26:43 +0000 | [diff] [blame] | 3138 | { |
| 3139 | PyObject *type, *value, *traceback; |
| 3140 | int err; |
| 3141 | PyErr_Fetch(&type, &value, &traceback); |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 3142 | err = call_trace(func, obj, frame, what, arg); |
Fred Drake | 4ec5d56 | 2001-10-04 19:26:43 +0000 | [diff] [blame] | 3143 | if (err == 0) |
| 3144 | PyErr_Restore(type, value, traceback); |
| 3145 | else { |
| 3146 | Py_XDECREF(type); |
| 3147 | Py_XDECREF(value); |
| 3148 | Py_XDECREF(traceback); |
| 3149 | } |
| 3150 | } |
| 3151 | |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 3152 | static int |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3153 | call_trace(Py_tracefunc func, PyObject *obj, PyFrameObject *frame, |
| 3154 | int what, PyObject *arg) |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 3155 | { |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3156 | register PyThreadState *tstate = frame->f_tstate; |
| 3157 | int result; |
| 3158 | if (tstate->tracing) |
Guido van Rossum | 9c8d70d | 1992-03-23 18:19:28 +0000 | [diff] [blame] | 3159 | return 0; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3160 | tstate->tracing++; |
Fred Drake | 9e3ad78 | 2001-07-03 23:39:52 +0000 | [diff] [blame] | 3161 | tstate->use_tracing = 0; |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3162 | result = func(obj, frame, what, arg); |
Fred Drake | 9e3ad78 | 2001-07-03 23:39:52 +0000 | [diff] [blame] | 3163 | tstate->use_tracing = ((tstate->c_tracefunc != NULL) |
| 3164 | || (tstate->c_profilefunc != NULL)); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3165 | tstate->tracing--; |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3166 | return result; |
Guido van Rossum | 96a42c8 | 1992-01-12 02:29:51 +0000 | [diff] [blame] | 3167 | } |
| 3168 | |
Guido van Rossum | a12fe4e | 2003-04-09 19:06:21 +0000 | [diff] [blame] | 3169 | PyObject * |
| 3170 | _PyEval_CallTracing(PyObject *func, PyObject *args) |
| 3171 | { |
| 3172 | PyFrameObject *frame = PyEval_GetFrame(); |
| 3173 | PyThreadState *tstate = frame->f_tstate; |
| 3174 | int save_tracing = tstate->tracing; |
| 3175 | int save_use_tracing = tstate->use_tracing; |
| 3176 | PyObject *result; |
| 3177 | |
| 3178 | tstate->tracing = 0; |
| 3179 | tstate->use_tracing = ((tstate->c_tracefunc != NULL) |
| 3180 | || (tstate->c_profilefunc != NULL)); |
| 3181 | result = PyObject_Call(func, args, NULL); |
| 3182 | tstate->tracing = save_tracing; |
| 3183 | tstate->use_tracing = save_use_tracing; |
| 3184 | return result; |
| 3185 | } |
| 3186 | |
Michael W. Hudson | 006c752 | 2002-11-08 13:08:46 +0000 | [diff] [blame] | 3187 | static int |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3188 | maybe_call_line_trace(Py_tracefunc func, PyObject *obj, |
Armin Rigo | bf57a14 | 2004-03-22 19:24:58 +0000 | [diff] [blame] | 3189 | PyFrameObject *frame, int *instr_lb, int *instr_ub, |
| 3190 | int *instr_prev) |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 3191 | { |
Michael W. Hudson | 006c752 | 2002-11-08 13:08:46 +0000 | [diff] [blame] | 3192 | int result = 0; |
| 3193 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 3194 | /* If the last instruction executed isn't in the current |
| 3195 | instruction window, reset the window. If the last |
| 3196 | instruction happens to fall at the start of a line or if it |
| 3197 | represents a jump backwards, call the trace function. |
| 3198 | */ |
Michael W. Hudson | 53d58bb | 2002-08-30 13:09:51 +0000 | [diff] [blame] | 3199 | if ((frame->f_lasti < *instr_lb || frame->f_lasti >= *instr_ub)) { |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 3200 | int line; |
| 3201 | PyAddrPair bounds; |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 3202 | |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 3203 | line = PyCode_CheckLineNumber(frame->f_code, frame->f_lasti, |
| 3204 | &bounds); |
| 3205 | if (line >= 0) { |
Michael W. Hudson | 02ff6a9 | 2002-09-11 15:36:32 +0000 | [diff] [blame] | 3206 | frame->f_lineno = line; |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3207 | result = call_trace(func, obj, frame, |
Michael W. Hudson | 006c752 | 2002-11-08 13:08:46 +0000 | [diff] [blame] | 3208 | PyTrace_LINE, Py_None); |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 3209 | } |
| 3210 | *instr_lb = bounds.ap_lower; |
| 3211 | *instr_ub = bounds.ap_upper; |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 3212 | } |
Armin Rigo | bf57a14 | 2004-03-22 19:24:58 +0000 | [diff] [blame] | 3213 | else if (frame->f_lasti <= *instr_prev) { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 3214 | result = call_trace(func, obj, frame, PyTrace_LINE, Py_None); |
Armin Rigo | bf57a14 | 2004-03-22 19:24:58 +0000 | [diff] [blame] | 3215 | } |
| 3216 | *instr_prev = frame->f_lasti; |
Michael W. Hudson | 006c752 | 2002-11-08 13:08:46 +0000 | [diff] [blame] | 3217 | return result; |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 3218 | } |
| 3219 | |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3220 | void |
| 3221 | PyEval_SetProfile(Py_tracefunc func, PyObject *arg) |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 3222 | { |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 3223 | PyThreadState *tstate = PyThreadState_GET(); |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3224 | PyObject *temp = tstate->c_profileobj; |
| 3225 | Py_XINCREF(arg); |
| 3226 | tstate->c_profilefunc = NULL; |
| 3227 | tstate->c_profileobj = NULL; |
Brett Cannon | 55fa66d | 2005-06-25 07:07:35 +0000 | [diff] [blame] | 3228 | /* Must make sure that tracing is not ignored if 'temp' is freed */ |
Fred Drake | 9e3ad78 | 2001-07-03 23:39:52 +0000 | [diff] [blame] | 3229 | tstate->use_tracing = tstate->c_tracefunc != NULL; |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3230 | Py_XDECREF(temp); |
| 3231 | tstate->c_profilefunc = func; |
| 3232 | tstate->c_profileobj = arg; |
Brett Cannon | 55fa66d | 2005-06-25 07:07:35 +0000 | [diff] [blame] | 3233 | /* Flag that tracing or profiling is turned on */ |
Fred Drake | 9e3ad78 | 2001-07-03 23:39:52 +0000 | [diff] [blame] | 3234 | tstate->use_tracing = (func != NULL) || (tstate->c_tracefunc != NULL); |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3235 | } |
| 3236 | |
| 3237 | void |
| 3238 | PyEval_SetTrace(Py_tracefunc func, PyObject *arg) |
| 3239 | { |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 3240 | PyThreadState *tstate = PyThreadState_GET(); |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3241 | PyObject *temp = tstate->c_traceobj; |
| 3242 | Py_XINCREF(arg); |
| 3243 | tstate->c_tracefunc = NULL; |
| 3244 | tstate->c_traceobj = NULL; |
Brett Cannon | 55fa66d | 2005-06-25 07:07:35 +0000 | [diff] [blame] | 3245 | /* Must make sure that profiling is not ignored if 'temp' is freed */ |
Fred Drake | 9e3ad78 | 2001-07-03 23:39:52 +0000 | [diff] [blame] | 3246 | tstate->use_tracing = tstate->c_profilefunc != NULL; |
Fred Drake | 5755ce6 | 2001-06-27 19:19:46 +0000 | [diff] [blame] | 3247 | Py_XDECREF(temp); |
| 3248 | tstate->c_tracefunc = func; |
| 3249 | tstate->c_traceobj = arg; |
Brett Cannon | 55fa66d | 2005-06-25 07:07:35 +0000 | [diff] [blame] | 3250 | /* Flag that tracing or profiling is turned on */ |
Fred Drake | 9e3ad78 | 2001-07-03 23:39:52 +0000 | [diff] [blame] | 3251 | tstate->use_tracing = ((func != NULL) |
| 3252 | || (tstate->c_profilefunc != NULL)); |
Fred Drake | d083839 | 2001-06-16 21:02:31 +0000 | [diff] [blame] | 3253 | } |
| 3254 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3255 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3256 | PyEval_GetBuiltins(void) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 3257 | { |
Guido van Rossum | 6297a7a | 2003-02-19 15:53:17 +0000 | [diff] [blame] | 3258 | PyFrameObject *current_frame = PyEval_GetFrame(); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 3259 | if (current_frame == NULL) |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 3260 | return PyThreadState_GET()->interp->builtins; |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 3261 | else |
| 3262 | return current_frame->f_builtins; |
| 3263 | } |
| 3264 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3265 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3266 | PyEval_GetLocals(void) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 3267 | { |
Guido van Rossum | 6297a7a | 2003-02-19 15:53:17 +0000 | [diff] [blame] | 3268 | PyFrameObject *current_frame = PyEval_GetFrame(); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 3269 | if (current_frame == NULL) |
| 3270 | return NULL; |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3271 | PyFrame_FastToLocals(current_frame); |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 3272 | return current_frame->f_locals; |
| 3273 | } |
| 3274 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3275 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3276 | PyEval_GetGlobals(void) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3277 | { |
Guido van Rossum | 6297a7a | 2003-02-19 15:53:17 +0000 | [diff] [blame] | 3278 | PyFrameObject *current_frame = PyEval_GetFrame(); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3279 | if (current_frame == NULL) |
| 3280 | return NULL; |
| 3281 | else |
| 3282 | return current_frame->f_globals; |
| 3283 | } |
| 3284 | |
Guido van Rossum | 6297a7a | 2003-02-19 15:53:17 +0000 | [diff] [blame] | 3285 | PyFrameObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3286 | PyEval_GetFrame(void) |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3287 | { |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 3288 | PyThreadState *tstate = PyThreadState_GET(); |
Guido van Rossum | 6297a7a | 2003-02-19 15:53:17 +0000 | [diff] [blame] | 3289 | return _PyThreadState_GetFrame(tstate); |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3290 | } |
| 3291 | |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 3292 | int |
Tim Peters | 5ba5866 | 2001-07-16 02:29:45 +0000 | [diff] [blame] | 3293 | PyEval_MergeCompilerFlags(PyCompilerFlags *cf) |
Jeremy Hylton | 061d106 | 2001-03-22 02:32:48 +0000 | [diff] [blame] | 3294 | { |
Guido van Rossum | 6297a7a | 2003-02-19 15:53:17 +0000 | [diff] [blame] | 3295 | PyFrameObject *current_frame = PyEval_GetFrame(); |
Just van Rossum | 3aaf42c | 2003-02-10 08:21:10 +0000 | [diff] [blame] | 3296 | int result = cf->cf_flags != 0; |
Tim Peters | 5ba5866 | 2001-07-16 02:29:45 +0000 | [diff] [blame] | 3297 | |
| 3298 | if (current_frame != NULL) { |
| 3299 | const int codeflags = current_frame->f_code->co_flags; |
Tim Peters | e2c18e9 | 2001-08-17 20:47:47 +0000 | [diff] [blame] | 3300 | const int compilerflags = codeflags & PyCF_MASK; |
| 3301 | if (compilerflags) { |
Tim Peters | 5ba5866 | 2001-07-16 02:29:45 +0000 | [diff] [blame] | 3302 | result = 1; |
Tim Peters | e2c18e9 | 2001-08-17 20:47:47 +0000 | [diff] [blame] | 3303 | cf->cf_flags |= compilerflags; |
Tim Peters | 5ba5866 | 2001-07-16 02:29:45 +0000 | [diff] [blame] | 3304 | } |
Neil Schemenauer | c24ea08 | 2002-03-22 23:53:36 +0000 | [diff] [blame] | 3305 | #if 0 /* future keyword */ |
Martin v. Löwis | 7198a52 | 2002-01-01 19:59:11 +0000 | [diff] [blame] | 3306 | if (codeflags & CO_GENERATOR_ALLOWED) { |
| 3307 | result = 1; |
| 3308 | cf->cf_flags |= CO_GENERATOR_ALLOWED; |
| 3309 | } |
Neil Schemenauer | c24ea08 | 2002-03-22 23:53:36 +0000 | [diff] [blame] | 3310 | #endif |
Tim Peters | 5ba5866 | 2001-07-16 02:29:45 +0000 | [diff] [blame] | 3311 | } |
| 3312 | return result; |
Jeremy Hylton | 061d106 | 2001-03-22 02:32:48 +0000 | [diff] [blame] | 3313 | } |
| 3314 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3315 | |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3316 | /* External interface to call any callable object. |
| 3317 | The arg must be a tuple or NULL. */ |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 3318 | |
Guido van Rossum | d7ed683 | 1997-08-30 15:02:50 +0000 | [diff] [blame] | 3319 | #undef PyEval_CallObject |
| 3320 | /* for backward compatibility: export this interface */ |
| 3321 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3322 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3323 | PyEval_CallObject(PyObject *func, PyObject *arg) |
Guido van Rossum | 83bf35c | 1991-07-27 21:32:34 +0000 | [diff] [blame] | 3324 | { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3325 | return PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3326 | } |
Guido van Rossum | d7ed683 | 1997-08-30 15:02:50 +0000 | [diff] [blame] | 3327 | #define PyEval_CallObject(func,arg) \ |
| 3328 | PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL) |
Guido van Rossum | e59214e | 1994-08-30 08:01:59 +0000 | [diff] [blame] | 3329 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3330 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3331 | PyEval_CallObjectWithKeywords(PyObject *func, PyObject *arg, PyObject *kw) |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3332 | { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3333 | PyObject *result; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3334 | |
Hye-Shik Chang | 4af5c8c | 2006-03-07 15:39:21 +0000 | [diff] [blame] | 3335 | if (arg == NULL) { |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3336 | arg = PyTuple_New(0); |
Hye-Shik Chang | 4af5c8c | 2006-03-07 15:39:21 +0000 | [diff] [blame] | 3337 | if (arg == NULL) |
| 3338 | return NULL; |
| 3339 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3340 | else if (!PyTuple_Check(arg)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3341 | PyErr_SetString(PyExc_TypeError, |
| 3342 | "argument list must be a tuple"); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3343 | return NULL; |
| 3344 | } |
| 3345 | else |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3346 | Py_INCREF(arg); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 3347 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3348 | if (kw != NULL && !PyDict_Check(kw)) { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3349 | PyErr_SetString(PyExc_TypeError, |
| 3350 | "keyword list must be a dictionary"); |
Guido van Rossum | 25826c9 | 2000-04-21 21:17:39 +0000 | [diff] [blame] | 3351 | Py_DECREF(arg); |
Guido van Rossum | e3e61c1 | 1995-08-04 04:14:47 +0000 | [diff] [blame] | 3352 | return NULL; |
| 3353 | } |
| 3354 | |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 3355 | result = PyObject_Call(func, arg, kw); |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3356 | Py_DECREF(arg); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3357 | return result; |
| 3358 | } |
| 3359 | |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 3360 | const char * |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 3361 | PyEval_GetFuncName(PyObject *func) |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3362 | { |
| 3363 | if (PyMethod_Check(func)) |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 3364 | return PyEval_GetFuncName(PyMethod_GET_FUNCTION(func)); |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3365 | else if (PyFunction_Check(func)) |
Martin v. Löwis | 5b22213 | 2007-06-10 09:51:05 +0000 | [diff] [blame] | 3366 | return PyUnicode_AsString(((PyFunctionObject*)func)->func_name); |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3367 | else if (PyCFunction_Check(func)) |
| 3368 | return ((PyCFunctionObject*)func)->m_ml->ml_name; |
Guido van Rossum | 50e9fb9 | 2006-08-17 05:42:55 +0000 | [diff] [blame] | 3369 | else |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3370 | return func->ob_type->tp_name; |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3371 | } |
| 3372 | |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 3373 | const char * |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 3374 | PyEval_GetFuncDesc(PyObject *func) |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3375 | { |
| 3376 | if (PyMethod_Check(func)) |
| 3377 | return "()"; |
| 3378 | else if (PyFunction_Check(func)) |
| 3379 | return "()"; |
| 3380 | else if (PyCFunction_Check(func)) |
| 3381 | return "()"; |
Guido van Rossum | 50e9fb9 | 2006-08-17 05:42:55 +0000 | [diff] [blame] | 3382 | else |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3383 | return " object"; |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3384 | } |
| 3385 | |
Neal Norwitz | addfe0c | 2002-11-10 14:33:26 +0000 | [diff] [blame] | 3386 | static void |
Jeremy Hylton | 192690e | 2002-08-16 18:36:11 +0000 | [diff] [blame] | 3387 | err_args(PyObject *func, int flags, int nargs) |
| 3388 | { |
| 3389 | if (flags & METH_NOARGS) |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3390 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 86c659a | 2002-08-23 14:11:35 +0000 | [diff] [blame] | 3391 | "%.200s() takes no arguments (%d given)", |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3392 | ((PyCFunctionObject *)func)->m_ml->ml_name, |
Jeremy Hylton | 192690e | 2002-08-16 18:36:11 +0000 | [diff] [blame] | 3393 | nargs); |
| 3394 | else |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3395 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | 86c659a | 2002-08-23 14:11:35 +0000 | [diff] [blame] | 3396 | "%.200s() takes exactly one argument (%d given)", |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3397 | ((PyCFunctionObject *)func)->m_ml->ml_name, |
Jeremy Hylton | 192690e | 2002-08-16 18:36:11 +0000 | [diff] [blame] | 3398 | nargs); |
| 3399 | } |
| 3400 | |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 3401 | #define C_TRACE(x, call) \ |
Nicholas Bastin | d858a77 | 2004-06-25 23:31:06 +0000 | [diff] [blame] | 3402 | if (tstate->use_tracing && tstate->c_profilefunc) { \ |
| 3403 | if (call_trace(tstate->c_profilefunc, \ |
| 3404 | tstate->c_profileobj, \ |
| 3405 | tstate->frame, PyTrace_C_CALL, \ |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 3406 | func)) { \ |
| 3407 | x = NULL; \ |
| 3408 | } \ |
| 3409 | else { \ |
| 3410 | x = call; \ |
| 3411 | if (tstate->c_profilefunc != NULL) { \ |
| 3412 | if (x == NULL) { \ |
| 3413 | call_trace_protected(tstate->c_profilefunc, \ |
| 3414 | tstate->c_profileobj, \ |
| 3415 | tstate->frame, PyTrace_C_EXCEPTION, \ |
| 3416 | func); \ |
| 3417 | /* XXX should pass (type, value, tb) */ \ |
| 3418 | } else { \ |
| 3419 | if (call_trace(tstate->c_profilefunc, \ |
| 3420 | tstate->c_profileobj, \ |
| 3421 | tstate->frame, PyTrace_C_RETURN, \ |
| 3422 | func)) { \ |
| 3423 | Py_DECREF(x); \ |
| 3424 | x = NULL; \ |
| 3425 | } \ |
| 3426 | } \ |
Nicholas Bastin | c69ebe8 | 2004-03-24 21:57:10 +0000 | [diff] [blame] | 3427 | } \ |
Nicholas Bastin | d858a77 | 2004-06-25 23:31:06 +0000 | [diff] [blame] | 3428 | } \ |
| 3429 | } else { \ |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 3430 | x = call; \ |
Nicholas Bastin | c69ebe8 | 2004-03-24 21:57:10 +0000 | [diff] [blame] | 3431 | } |
| 3432 | |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3433 | static PyObject * |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 3434 | call_function(PyObject ***pp_stack, int oparg |
| 3435 | #ifdef WITH_TSC |
| 3436 | , uint64* pintr0, uint64* pintr1 |
| 3437 | #endif |
| 3438 | ) |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3439 | { |
| 3440 | int na = oparg & 0xff; |
| 3441 | int nk = (oparg>>8) & 0xff; |
| 3442 | int n = na + 2 * nk; |
| 3443 | PyObject **pfunc = (*pp_stack) - n - 1; |
| 3444 | PyObject *func = *pfunc; |
| 3445 | PyObject *x, *w; |
| 3446 | |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3447 | /* Always dispatch PyCFunction first, because these are |
| 3448 | presumed to be the most frequent callable object. |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3449 | */ |
| 3450 | if (PyCFunction_Check(func) && nk == 0) { |
| 3451 | int flags = PyCFunction_GET_FLAGS(func); |
Nicholas Bastin | d858a77 | 2004-06-25 23:31:06 +0000 | [diff] [blame] | 3452 | PyThreadState *tstate = PyThreadState_GET(); |
Raymond Hettinger | a7f56bc | 2004-06-26 04:34:33 +0000 | [diff] [blame] | 3453 | |
| 3454 | PCALL(PCALL_CFUNCTION); |
Jeremy Hylton | 192690e | 2002-08-16 18:36:11 +0000 | [diff] [blame] | 3455 | if (flags & (METH_NOARGS | METH_O)) { |
| 3456 | PyCFunction meth = PyCFunction_GET_FUNCTION(func); |
| 3457 | PyObject *self = PyCFunction_GET_SELF(func); |
Nicholas Bastin | c69ebe8 | 2004-03-24 21:57:10 +0000 | [diff] [blame] | 3458 | if (flags & METH_NOARGS && na == 0) { |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 3459 | C_TRACE(x, (*meth)(self,NULL)); |
Nicholas Bastin | c69ebe8 | 2004-03-24 21:57:10 +0000 | [diff] [blame] | 3460 | } |
Jeremy Hylton | 192690e | 2002-08-16 18:36:11 +0000 | [diff] [blame] | 3461 | else if (flags & METH_O && na == 1) { |
| 3462 | PyObject *arg = EXT_POP(*pp_stack); |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 3463 | C_TRACE(x, (*meth)(self,arg)); |
Jeremy Hylton | 192690e | 2002-08-16 18:36:11 +0000 | [diff] [blame] | 3464 | Py_DECREF(arg); |
| 3465 | } |
| 3466 | else { |
| 3467 | err_args(func, flags, na); |
| 3468 | x = NULL; |
| 3469 | } |
| 3470 | } |
| 3471 | else { |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3472 | PyObject *callargs; |
| 3473 | callargs = load_args(pp_stack, na); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 3474 | READ_TIMESTAMP(*pintr0); |
Armin Rigo | 1c2d7e5 | 2005-09-20 18:34:01 +0000 | [diff] [blame] | 3475 | C_TRACE(x, PyCFunction_Call(func,callargs,NULL)); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 3476 | READ_TIMESTAMP(*pintr1); |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3477 | Py_XDECREF(callargs); |
| 3478 | } |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3479 | } else { |
| 3480 | if (PyMethod_Check(func) && PyMethod_GET_SELF(func) != NULL) { |
| 3481 | /* optimize access to bound methods */ |
| 3482 | PyObject *self = PyMethod_GET_SELF(func); |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3483 | PCALL(PCALL_METHOD); |
| 3484 | PCALL(PCALL_BOUND_METHOD); |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3485 | Py_INCREF(self); |
| 3486 | func = PyMethod_GET_FUNCTION(func); |
| 3487 | Py_INCREF(func); |
| 3488 | Py_DECREF(*pfunc); |
| 3489 | *pfunc = self; |
| 3490 | na++; |
| 3491 | n++; |
| 3492 | } else |
| 3493 | Py_INCREF(func); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 3494 | READ_TIMESTAMP(*pintr0); |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3495 | if (PyFunction_Check(func)) |
| 3496 | x = fast_function(func, pp_stack, n, na, nk); |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3497 | else |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3498 | x = do_call(func, pp_stack, na, nk); |
Michael W. Hudson | 75eabd2 | 2005-01-18 15:56:11 +0000 | [diff] [blame] | 3499 | READ_TIMESTAMP(*pintr1); |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3500 | Py_DECREF(func); |
| 3501 | } |
Tim Peters | 8a5c3c7 | 2004-04-05 19:36:21 +0000 | [diff] [blame] | 3502 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 3503 | /* Clear the stack of the function object. Also removes |
| 3504 | the arguments in case they weren't consumed already |
| 3505 | (fast_function() and err_args() leave them on the stack). |
Thomas Wouters | 7f59732 | 2006-03-01 05:32:33 +0000 | [diff] [blame] | 3506 | */ |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3507 | while ((*pp_stack) > pfunc) { |
| 3508 | w = EXT_POP(*pp_stack); |
| 3509 | Py_DECREF(w); |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3510 | PCALL(PCALL_POP); |
Jeremy Hylton | e8c0432 | 2002-08-16 17:47:26 +0000 | [diff] [blame] | 3511 | } |
| 3512 | return x; |
| 3513 | } |
| 3514 | |
Jeremy Hylton | 192690e | 2002-08-16 18:36:11 +0000 | [diff] [blame] | 3515 | /* The fast_function() function optimize calls for which no argument |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3516 | tuple is necessary; the objects are passed directly from the stack. |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3517 | For the simplest case -- a function that takes only positional |
| 3518 | arguments and is called with only positional arguments -- it |
| 3519 | inlines the most primitive frame setup code from |
| 3520 | PyEval_EvalCodeEx(), which vastly reduces the checks that must be |
| 3521 | done before evaluating the frame. |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3522 | */ |
| 3523 | |
| 3524 | static PyObject * |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3525 | fast_function(PyObject *func, PyObject ***pp_stack, int n, int na, int nk) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3526 | { |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3527 | PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3528 | PyObject *globals = PyFunction_GET_GLOBALS(func); |
| 3529 | PyObject *argdefs = PyFunction_GET_DEFAULTS(func); |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 3530 | PyObject *kwdefs = PyFunction_GET_KW_DEFAULTS(func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3531 | PyObject **d = NULL; |
| 3532 | int nd = 0; |
| 3533 | |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3534 | PCALL(PCALL_FUNCTION); |
| 3535 | PCALL(PCALL_FAST_FUNCTION); |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 3536 | if (argdefs == NULL && co->co_argcount == n && |
| 3537 | co->co_kwonlyargcount == 0 && nk==0 && |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3538 | co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) { |
| 3539 | PyFrameObject *f; |
| 3540 | PyObject *retval = NULL; |
| 3541 | PyThreadState *tstate = PyThreadState_GET(); |
| 3542 | PyObject **fastlocals, **stack; |
| 3543 | int i; |
| 3544 | |
| 3545 | PCALL(PCALL_FASTER_FUNCTION); |
| 3546 | assert(globals != NULL); |
| 3547 | /* XXX Perhaps we should create a specialized |
| 3548 | PyFrame_New() that doesn't take locals, but does |
| 3549 | take builtins without sanity checking them. |
| 3550 | */ |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 3551 | assert(tstate != NULL); |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3552 | f = PyFrame_New(tstate, co, globals, NULL); |
| 3553 | if (f == NULL) |
| 3554 | return NULL; |
| 3555 | |
| 3556 | fastlocals = f->f_localsplus; |
| 3557 | stack = (*pp_stack) - n; |
| 3558 | |
| 3559 | for (i = 0; i < n; i++) { |
| 3560 | Py_INCREF(*stack); |
| 3561 | fastlocals[i] = *stack++; |
| 3562 | } |
Phillip J. Eby | 0d6615f | 2005-08-02 00:46:46 +0000 | [diff] [blame] | 3563 | retval = PyEval_EvalFrameEx(f,0); |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3564 | ++tstate->recursion_depth; |
| 3565 | Py_DECREF(f); |
| 3566 | --tstate->recursion_depth; |
| 3567 | return retval; |
| 3568 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3569 | if (argdefs != NULL) { |
| 3570 | d = &PyTuple_GET_ITEM(argdefs, 0); |
Martin v. Löwis | 9f2e346 | 2007-07-21 17:22:18 +0000 | [diff] [blame] | 3571 | nd = Py_Size(argdefs); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3572 | } |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3573 | return PyEval_EvalCodeEx(co, globals, |
| 3574 | (PyObject *)NULL, (*pp_stack)-n, na, |
Guido van Rossum | 4f72a78 | 2006-10-27 23:31:49 +0000 | [diff] [blame] | 3575 | (*pp_stack)-2*nk, nk, d, nd, kwdefs, |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3576 | PyFunction_GET_CLOSURE(func)); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3577 | } |
| 3578 | |
| 3579 | static PyObject * |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3580 | update_keyword_args(PyObject *orig_kwdict, int nk, PyObject ***pp_stack, |
| 3581 | PyObject *func) |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3582 | { |
| 3583 | PyObject *kwdict = NULL; |
| 3584 | if (orig_kwdict == NULL) |
| 3585 | kwdict = PyDict_New(); |
| 3586 | else { |
| 3587 | kwdict = PyDict_Copy(orig_kwdict); |
| 3588 | Py_DECREF(orig_kwdict); |
| 3589 | } |
| 3590 | if (kwdict == NULL) |
| 3591 | return NULL; |
Raymond Hettinger | 5bed456 | 2004-04-10 23:34:17 +0000 | [diff] [blame] | 3592 | while (--nk >= 0) { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3593 | int err; |
| 3594 | PyObject *value = EXT_POP(*pp_stack); |
| 3595 | PyObject *key = EXT_POP(*pp_stack); |
| 3596 | if (PyDict_GetItem(kwdict, key) != NULL) { |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 3597 | PyErr_Format(PyExc_TypeError, |
| 3598 | "%.200s%s got multiple values " |
| 3599 | "for keyword argument '%.200s'", |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 3600 | PyEval_GetFuncName(func), |
| 3601 | PyEval_GetFuncDesc(func), |
Neal Norwitz | da059e3 | 2007-08-26 05:33:45 +0000 | [diff] [blame] | 3602 | PyUnicode_AsString(key)); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3603 | Py_DECREF(key); |
| 3604 | Py_DECREF(value); |
| 3605 | Py_DECREF(kwdict); |
| 3606 | return NULL; |
| 3607 | } |
| 3608 | err = PyDict_SetItem(kwdict, key, value); |
| 3609 | Py_DECREF(key); |
| 3610 | Py_DECREF(value); |
| 3611 | if (err) { |
| 3612 | Py_DECREF(kwdict); |
| 3613 | return NULL; |
| 3614 | } |
| 3615 | } |
| 3616 | return kwdict; |
| 3617 | } |
| 3618 | |
| 3619 | static PyObject * |
| 3620 | update_star_args(int nstack, int nstar, PyObject *stararg, |
| 3621 | PyObject ***pp_stack) |
| 3622 | { |
| 3623 | PyObject *callargs, *w; |
| 3624 | |
| 3625 | callargs = PyTuple_New(nstack + nstar); |
| 3626 | if (callargs == NULL) { |
| 3627 | return NULL; |
| 3628 | } |
| 3629 | if (nstar) { |
| 3630 | int i; |
| 3631 | for (i = 0; i < nstar; i++) { |
| 3632 | PyObject *a = PyTuple_GET_ITEM(stararg, i); |
| 3633 | Py_INCREF(a); |
| 3634 | PyTuple_SET_ITEM(callargs, nstack + i, a); |
| 3635 | } |
| 3636 | } |
Raymond Hettinger | 5bed456 | 2004-04-10 23:34:17 +0000 | [diff] [blame] | 3637 | while (--nstack >= 0) { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3638 | w = EXT_POP(*pp_stack); |
| 3639 | PyTuple_SET_ITEM(callargs, nstack, w); |
| 3640 | } |
| 3641 | return callargs; |
| 3642 | } |
| 3643 | |
| 3644 | static PyObject * |
| 3645 | load_args(PyObject ***pp_stack, int na) |
| 3646 | { |
| 3647 | PyObject *args = PyTuple_New(na); |
| 3648 | PyObject *w; |
| 3649 | |
| 3650 | if (args == NULL) |
| 3651 | return NULL; |
Raymond Hettinger | 5bed456 | 2004-04-10 23:34:17 +0000 | [diff] [blame] | 3652 | while (--na >= 0) { |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3653 | w = EXT_POP(*pp_stack); |
| 3654 | PyTuple_SET_ITEM(args, na, w); |
| 3655 | } |
| 3656 | return args; |
| 3657 | } |
| 3658 | |
| 3659 | static PyObject * |
| 3660 | do_call(PyObject *func, PyObject ***pp_stack, int na, int nk) |
| 3661 | { |
| 3662 | PyObject *callargs = NULL; |
| 3663 | PyObject *kwdict = NULL; |
| 3664 | PyObject *result = NULL; |
| 3665 | |
| 3666 | if (nk > 0) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3667 | kwdict = update_keyword_args(NULL, nk, pp_stack, func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3668 | if (kwdict == NULL) |
| 3669 | goto call_fail; |
| 3670 | } |
| 3671 | callargs = load_args(pp_stack, na); |
| 3672 | if (callargs == NULL) |
| 3673 | goto call_fail; |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3674 | #ifdef CALL_PROFILE |
| 3675 | /* At this point, we have to look at the type of func to |
| 3676 | update the call stats properly. Do it here so as to avoid |
| 3677 | exposing the call stats machinery outside ceval.c |
| 3678 | */ |
| 3679 | if (PyFunction_Check(func)) |
| 3680 | PCALL(PCALL_FUNCTION); |
| 3681 | else if (PyMethod_Check(func)) |
| 3682 | PCALL(PCALL_METHOD); |
| 3683 | else if (PyType_Check(func)) |
| 3684 | PCALL(PCALL_TYPE); |
| 3685 | else |
| 3686 | PCALL(PCALL_OTHER); |
| 3687 | #endif |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 3688 | result = PyObject_Call(func, callargs, kwdict); |
Thomas Wouters | 7ce29ca | 2007-09-19 21:56:32 +0000 | [diff] [blame] | 3689 | call_fail: |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3690 | Py_XDECREF(callargs); |
| 3691 | Py_XDECREF(kwdict); |
| 3692 | return result; |
| 3693 | } |
| 3694 | |
| 3695 | static PyObject * |
| 3696 | ext_do_call(PyObject *func, PyObject ***pp_stack, int flags, int na, int nk) |
| 3697 | { |
| 3698 | int nstar = 0; |
| 3699 | PyObject *callargs = NULL; |
| 3700 | PyObject *stararg = NULL; |
| 3701 | PyObject *kwdict = NULL; |
| 3702 | PyObject *result = NULL; |
| 3703 | |
| 3704 | if (flags & CALL_FLAG_KW) { |
| 3705 | kwdict = EXT_POP(*pp_stack); |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 3706 | if (!PyDict_Check(kwdict)) { |
| 3707 | PyObject *d; |
| 3708 | d = PyDict_New(); |
| 3709 | if (d == NULL) |
| 3710 | goto ext_call_fail; |
| 3711 | if (PyDict_Update(d, kwdict) != 0) { |
| 3712 | Py_DECREF(d); |
| 3713 | /* PyDict_Update raises attribute |
| 3714 | * error (percolated from an attempt |
| 3715 | * to get 'keys' attribute) instead of |
| 3716 | * a type error if its second argument |
| 3717 | * is not a mapping. |
| 3718 | */ |
| 3719 | if (PyErr_ExceptionMatches(PyExc_AttributeError)) { |
| 3720 | PyErr_Format(PyExc_TypeError, |
| 3721 | "%.200s%.200s argument after ** " |
| 3722 | "must be a mapping, not %.200s", |
| 3723 | PyEval_GetFuncName(func), |
| 3724 | PyEval_GetFuncDesc(func), |
| 3725 | kwdict->ob_type->tp_name); |
| 3726 | } |
| 3727 | goto ext_call_fail; |
| 3728 | } |
| 3729 | Py_DECREF(kwdict); |
| 3730 | kwdict = d; |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3731 | } |
| 3732 | } |
| 3733 | if (flags & CALL_FLAG_VAR) { |
| 3734 | stararg = EXT_POP(*pp_stack); |
| 3735 | if (!PyTuple_Check(stararg)) { |
| 3736 | PyObject *t = NULL; |
| 3737 | t = PySequence_Tuple(stararg); |
| 3738 | if (t == NULL) { |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3739 | if (PyErr_ExceptionMatches(PyExc_TypeError)) { |
| 3740 | PyErr_Format(PyExc_TypeError, |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 3741 | "%.200s%.200s argument after * " |
| 3742 | "must be a sequence, not %200s", |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 3743 | PyEval_GetFuncName(func), |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 3744 | PyEval_GetFuncDesc(func), |
| 3745 | stararg->ob_type->tp_name); |
Jeremy Hylton | 512a237 | 2001-04-11 13:52:29 +0000 | [diff] [blame] | 3746 | } |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3747 | goto ext_call_fail; |
| 3748 | } |
| 3749 | Py_DECREF(stararg); |
| 3750 | stararg = t; |
| 3751 | } |
| 3752 | nstar = PyTuple_GET_SIZE(stararg); |
| 3753 | } |
| 3754 | if (nk > 0) { |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 3755 | kwdict = update_keyword_args(kwdict, nk, pp_stack, func); |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3756 | if (kwdict == NULL) |
| 3757 | goto ext_call_fail; |
| 3758 | } |
| 3759 | callargs = update_star_args(na, nstar, stararg, pp_stack); |
| 3760 | if (callargs == NULL) |
| 3761 | goto ext_call_fail; |
Jeremy Hylton | 985eba5 | 2003-02-05 23:13:00 +0000 | [diff] [blame] | 3762 | #ifdef CALL_PROFILE |
| 3763 | /* At this point, we have to look at the type of func to |
| 3764 | update the call stats properly. Do it here so as to avoid |
| 3765 | exposing the call stats machinery outside ceval.c |
| 3766 | */ |
| 3767 | if (PyFunction_Check(func)) |
| 3768 | PCALL(PCALL_FUNCTION); |
| 3769 | else if (PyMethod_Check(func)) |
| 3770 | PCALL(PCALL_METHOD); |
| 3771 | else if (PyType_Check(func)) |
| 3772 | PCALL(PCALL_TYPE); |
| 3773 | else |
| 3774 | PCALL(PCALL_OTHER); |
| 3775 | #endif |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 3776 | result = PyObject_Call(func, callargs, kwdict); |
Thomas Wouters | ce272b6 | 2007-09-19 21:19:28 +0000 | [diff] [blame] | 3777 | ext_call_fail: |
Jeremy Hylton | 5282044 | 2001-01-03 23:52:36 +0000 | [diff] [blame] | 3778 | Py_XDECREF(callargs); |
| 3779 | Py_XDECREF(kwdict); |
| 3780 | Py_XDECREF(stararg); |
| 3781 | return result; |
| 3782 | } |
| 3783 | |
Guido van Rossum | 38fff8c | 2006-03-07 18:50:55 +0000 | [diff] [blame] | 3784 | /* Extract a slice index from a PyInt or PyLong or an object with the |
| 3785 | nb_index slot defined, and store in *pi. |
| 3786 | Silently reduce values larger than PY_SSIZE_T_MAX to PY_SSIZE_T_MAX, |
| 3787 | and silently boost values less than -PY_SSIZE_T_MAX-1 to -PY_SSIZE_T_MAX-1. |
Martin v. Löwis | dde99d2 | 2006-02-17 15:57:41 +0000 | [diff] [blame] | 3788 | Return 0 on error, 1 on success. |
Tim Peters | cb479e7 | 2001-12-16 19:11:44 +0000 | [diff] [blame] | 3789 | */ |
Tim Peters | b519638 | 2001-12-16 19:44:20 +0000 | [diff] [blame] | 3790 | /* Note: If v is NULL, return success without storing into *pi. This |
| 3791 | is because_PyEval_SliceIndex() is called by apply_slice(), which can be |
| 3792 | called by the SLICE opcode with v and/or w equal to NULL. |
Tim Peters | cb479e7 | 2001-12-16 19:11:44 +0000 | [diff] [blame] | 3793 | */ |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3794 | int |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 3795 | _PyEval_SliceIndex(PyObject *v, Py_ssize_t *pi) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3796 | { |
Tim Peters | b519638 | 2001-12-16 19:44:20 +0000 | [diff] [blame] | 3797 | if (v != NULL) { |
Martin v. Löwis | dde99d2 | 2006-02-17 15:57:41 +0000 | [diff] [blame] | 3798 | Py_ssize_t x; |
Guido van Rossum | ddefaf3 | 2007-01-14 03:31:43 +0000 | [diff] [blame] | 3799 | if (PyInt_CheckExact(v)) { |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 3800 | /* XXX(nnorwitz): I think PyInt_AS_LONG is correct, |
| 3801 | however, it looks like it should be AsSsize_t. |
| 3802 | There should be a comment here explaining why. |
| 3803 | */ |
| 3804 | x = PyInt_AS_LONG(v); |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 3805 | } |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 3806 | else if (PyIndex_Check(v)) { |
| 3807 | x = PyNumber_AsSsize_t(v, NULL); |
Guido van Rossum | 38fff8c | 2006-03-07 18:50:55 +0000 | [diff] [blame] | 3808 | if (x == -1 && PyErr_Occurred()) |
| 3809 | return 0; |
| 3810 | } |
| 3811 | else { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3812 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 38fff8c | 2006-03-07 18:50:55 +0000 | [diff] [blame] | 3813 | "slice indices must be integers or " |
| 3814 | "None or have an __index__ method"); |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3815 | return 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3816 | } |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 3817 | *pi = x; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3818 | } |
Guido van Rossum | 20c6add | 2000-05-08 14:06:50 +0000 | [diff] [blame] | 3819 | return 1; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3820 | } |
| 3821 | |
Guido van Rossum | 486364b | 2007-06-30 05:01:58 +0000 | [diff] [blame] | 3822 | #define CANNOT_CATCH_MSG "catching classes that do not inherit from "\ |
Brett Cannon | 3959046 | 2007-02-26 22:01:14 +0000 | [diff] [blame] | 3823 | "BaseException is not allowed" |
Brett Cannon | f74225d | 2007-02-26 21:10:16 +0000 | [diff] [blame] | 3824 | |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3825 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 3826 | cmp_outcome(int op, register PyObject *v, register PyObject *w) |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3827 | { |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3828 | int res = 0; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3829 | switch (op) { |
Martin v. Löwis | 7198a52 | 2002-01-01 19:59:11 +0000 | [diff] [blame] | 3830 | case PyCmp_IS: |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3831 | res = (v == w); |
Raymond Hettinger | 4bad9ba | 2003-01-19 05:08:13 +0000 | [diff] [blame] | 3832 | break; |
| 3833 | case PyCmp_IS_NOT: |
| 3834 | res = (v != w); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3835 | break; |
Martin v. Löwis | 7198a52 | 2002-01-01 19:59:11 +0000 | [diff] [blame] | 3836 | case PyCmp_IN: |
Raymond Hettinger | 4bad9ba | 2003-01-19 05:08:13 +0000 | [diff] [blame] | 3837 | res = PySequence_Contains(w, v); |
| 3838 | if (res < 0) |
| 3839 | return NULL; |
| 3840 | break; |
Martin v. Löwis | 7198a52 | 2002-01-01 19:59:11 +0000 | [diff] [blame] | 3841 | case PyCmp_NOT_IN: |
Guido van Rossum | 7e33c6e | 1998-05-22 00:52:29 +0000 | [diff] [blame] | 3842 | res = PySequence_Contains(w, v); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3843 | if (res < 0) |
| 3844 | return NULL; |
Raymond Hettinger | 4bad9ba | 2003-01-19 05:08:13 +0000 | [diff] [blame] | 3845 | res = !res; |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3846 | break; |
Martin v. Löwis | 7198a52 | 2002-01-01 19:59:11 +0000 | [diff] [blame] | 3847 | case PyCmp_EXC_MATCH: |
Thomas Wouters | 9fe394c | 2007-02-05 01:24:16 +0000 | [diff] [blame] | 3848 | if (PyTuple_Check(w)) { |
| 3849 | Py_ssize_t i, length; |
| 3850 | length = PyTuple_Size(w); |
| 3851 | for (i = 0; i < length; i += 1) { |
| 3852 | PyObject *exc = PyTuple_GET_ITEM(w, i); |
Brett Cannon | 3959046 | 2007-02-26 22:01:14 +0000 | [diff] [blame] | 3853 | if (!PyExceptionClass_Check(exc)) { |
| 3854 | PyErr_SetString(PyExc_TypeError, |
| 3855 | CANNOT_CATCH_MSG); |
Brett Cannon | f74225d | 2007-02-26 21:10:16 +0000 | [diff] [blame] | 3856 | return NULL; |
Thomas Wouters | 9fe394c | 2007-02-05 01:24:16 +0000 | [diff] [blame] | 3857 | } |
| 3858 | } |
| 3859 | } |
| 3860 | else { |
Brett Cannon | 3959046 | 2007-02-26 22:01:14 +0000 | [diff] [blame] | 3861 | if (!PyExceptionClass_Check(w)) { |
| 3862 | PyErr_SetString(PyExc_TypeError, |
| 3863 | CANNOT_CATCH_MSG); |
Brett Cannon | f74225d | 2007-02-26 21:10:16 +0000 | [diff] [blame] | 3864 | return NULL; |
Thomas Wouters | 9fe394c | 2007-02-05 01:24:16 +0000 | [diff] [blame] | 3865 | } |
| 3866 | } |
Barry Warsaw | 4249f54 | 1997-08-22 21:26:19 +0000 | [diff] [blame] | 3867 | res = PyErr_GivenExceptionMatches(v, w); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3868 | break; |
| 3869 | default: |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3870 | return PyObject_RichCompare(v, w, op); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3871 | } |
Guido van Rossum | b209a11 | 1997-04-29 18:18:01 +0000 | [diff] [blame] | 3872 | v = res ? Py_True : Py_False; |
| 3873 | Py_INCREF(v); |
Guido van Rossum | 10dc2e8 | 1990-11-18 17:27:39 +0000 | [diff] [blame] | 3874 | return v; |
| 3875 | } |
| 3876 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3877 | static PyObject * |
| 3878 | import_from(PyObject *v, PyObject *name) |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3879 | { |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3880 | PyObject *x; |
| 3881 | |
| 3882 | x = PyObject_GetAttr(v, name); |
| 3883 | if (x == NULL && PyErr_ExceptionMatches(PyExc_AttributeError)) { |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 3884 | PyErr_Format(PyExc_ImportError, "cannot import name %S", name); |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3885 | } |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3886 | return x; |
| 3887 | } |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3888 | |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3889 | static int |
| 3890 | import_all_from(PyObject *locals, PyObject *v) |
| 3891 | { |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3892 | PyObject *all = PyObject_GetAttrString(v, "__all__"); |
| 3893 | PyObject *dict, *name, *value; |
| 3894 | int skip_leading_underscores = 0; |
| 3895 | int pos, err; |
Thomas Wouters | 5215225 | 2000-08-17 22:55:00 +0000 | [diff] [blame] | 3896 | |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3897 | if (all == NULL) { |
| 3898 | if (!PyErr_ExceptionMatches(PyExc_AttributeError)) |
| 3899 | return -1; /* Unexpected error */ |
| 3900 | PyErr_Clear(); |
| 3901 | dict = PyObject_GetAttrString(v, "__dict__"); |
| 3902 | if (dict == NULL) { |
| 3903 | if (!PyErr_ExceptionMatches(PyExc_AttributeError)) |
| 3904 | return -1; |
| 3905 | PyErr_SetString(PyExc_ImportError, |
| 3906 | "from-import-* object has no __dict__ and no __all__"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 3907 | return -1; |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3908 | } |
| 3909 | all = PyMapping_Keys(dict); |
| 3910 | Py_DECREF(dict); |
| 3911 | if (all == NULL) |
| 3912 | return -1; |
| 3913 | skip_leading_underscores = 1; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3914 | } |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3915 | |
| 3916 | for (pos = 0, err = 0; ; pos++) { |
| 3917 | name = PySequence_GetItem(all, pos); |
| 3918 | if (name == NULL) { |
| 3919 | if (!PyErr_ExceptionMatches(PyExc_IndexError)) |
| 3920 | err = -1; |
| 3921 | else |
| 3922 | PyErr_Clear(); |
| 3923 | break; |
| 3924 | } |
| 3925 | if (skip_leading_underscores && |
Martin v. Löwis | 5b22213 | 2007-06-10 09:51:05 +0000 | [diff] [blame] | 3926 | PyUnicode_Check(name) && |
| 3927 | PyUnicode_AS_UNICODE(name)[0] == '_') |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3928 | { |
| 3929 | Py_DECREF(name); |
| 3930 | continue; |
| 3931 | } |
| 3932 | value = PyObject_GetAttr(v, name); |
| 3933 | if (value == NULL) |
| 3934 | err = -1; |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 3935 | else if (PyDict_CheckExact(locals)) |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3936 | err = PyDict_SetItem(locals, name, value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 3937 | else |
| 3938 | err = PyObject_SetItem(locals, name, value); |
Guido van Rossum | 18d4d8f | 2001-01-12 16:24:03 +0000 | [diff] [blame] | 3939 | Py_DECREF(name); |
| 3940 | Py_XDECREF(value); |
| 3941 | if (err != 0) |
| 3942 | break; |
| 3943 | } |
| 3944 | Py_DECREF(all); |
| 3945 | return err; |
Guido van Rossum | e9736fc | 1990-11-18 17:33:06 +0000 | [diff] [blame] | 3946 | } |
| 3947 | |
Guido van Rossum | ac7be68 | 2001-01-17 15:42:30 +0000 | [diff] [blame] | 3948 | static void |
Neal Norwitz | da059e3 | 2007-08-26 05:33:45 +0000 | [diff] [blame] | 3949 | format_exc_check_arg(PyObject *exc, const char *format_str, PyObject *obj) |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 3950 | { |
Neal Norwitz | da059e3 | 2007-08-26 05:33:45 +0000 | [diff] [blame] | 3951 | const char *obj_str; |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 3952 | |
| 3953 | if (!obj) |
| 3954 | return; |
| 3955 | |
Neal Norwitz | da059e3 | 2007-08-26 05:33:45 +0000 | [diff] [blame] | 3956 | obj_str = PyUnicode_AsString(obj); |
Paul Prescod | e68140d | 2000-08-30 20:25:01 +0000 | [diff] [blame] | 3957 | if (!obj_str) |
| 3958 | return; |
| 3959 | |
| 3960 | PyErr_Format(exc, format_str, obj_str); |
| 3961 | } |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 3962 | |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 3963 | static PyObject * |
| 3964 | string_concatenate(PyObject *v, PyObject *w, |
| 3965 | PyFrameObject *f, unsigned char *next_instr) |
| 3966 | { |
| 3967 | /* This function implements 'variable += expr' when both arguments |
| 3968 | are strings. */ |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 3969 | Py_ssize_t v_len = PyString_GET_SIZE(v); |
| 3970 | Py_ssize_t w_len = PyString_GET_SIZE(w); |
| 3971 | Py_ssize_t new_len = v_len + w_len; |
| 3972 | if (new_len < 0) { |
| 3973 | PyErr_SetString(PyExc_OverflowError, |
| 3974 | "strings are too large to concat"); |
| 3975 | return NULL; |
| 3976 | } |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 3977 | |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 3978 | if (v->ob_refcnt == 2) { |
| 3979 | /* In the common case, there are 2 references to the value |
| 3980 | * stored in 'variable' when the += is performed: one on the |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 3981 | * value stack (in 'v') and one still stored in the |
| 3982 | * 'variable'. We try to delete the variable now to reduce |
| 3983 | * the refcnt to 1. |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 3984 | */ |
| 3985 | switch (*next_instr) { |
| 3986 | case STORE_FAST: |
| 3987 | { |
| 3988 | int oparg = PEEKARG(); |
| 3989 | PyObject **fastlocals = f->f_localsplus; |
| 3990 | if (GETLOCAL(oparg) == v) |
| 3991 | SETLOCAL(oparg, NULL); |
| 3992 | break; |
| 3993 | } |
| 3994 | case STORE_DEREF: |
| 3995 | { |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 3996 | PyObject **freevars = (f->f_localsplus + |
| 3997 | f->f_code->co_nlocals); |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 3998 | PyObject *c = freevars[PEEKARG()]; |
| 3999 | if (PyCell_GET(c) == v) |
| 4000 | PyCell_Set(c, NULL); |
| 4001 | break; |
| 4002 | } |
| 4003 | case STORE_NAME: |
| 4004 | { |
| 4005 | PyObject *names = f->f_code->co_names; |
| 4006 | PyObject *name = GETITEM(names, PEEKARG()); |
| 4007 | PyObject *locals = f->f_locals; |
| 4008 | if (PyDict_CheckExact(locals) && |
| 4009 | PyDict_GetItem(locals, name) == v) { |
| 4010 | if (PyDict_DelItem(locals, name) != 0) { |
| 4011 | PyErr_Clear(); |
| 4012 | } |
| 4013 | } |
| 4014 | break; |
| 4015 | } |
| 4016 | } |
| 4017 | } |
| 4018 | |
Armin Rigo | 618fbf5 | 2004-08-07 20:58:32 +0000 | [diff] [blame] | 4019 | if (v->ob_refcnt == 1 && !PyString_CHECK_INTERNED(v)) { |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 4020 | /* Now we own the last reference to 'v', so we can resize it |
| 4021 | * in-place. |
| 4022 | */ |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 4023 | if (_PyString_Resize(&v, new_len) != 0) { |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 4024 | /* XXX if _PyString_Resize() fails, 'v' has been |
Thomas Wouters | 8ce81f7 | 2007-09-20 18:22:40 +0000 | [diff] [blame] | 4025 | * deallocated so it cannot be put back into |
| 4026 | * 'variable'. The MemoryError is raised when there |
| 4027 | * is no value in 'variable', which might (very |
| 4028 | * remotely) be a cause of incompatibilities. |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 4029 | */ |
| 4030 | return NULL; |
| 4031 | } |
| 4032 | /* copy 'w' into the newly allocated area of 'v' */ |
| 4033 | memcpy(PyString_AS_STRING(v) + v_len, |
| 4034 | PyString_AS_STRING(w), w_len); |
| 4035 | return v; |
| 4036 | } |
| 4037 | else { |
| 4038 | /* When in-place resizing is not an option. */ |
| 4039 | PyString_Concat(&v, w); |
| 4040 | return v; |
| 4041 | } |
| 4042 | } |
| 4043 | |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 4044 | #ifdef DYNAMIC_EXECUTION_PROFILE |
| 4045 | |
Skip Montanaro | f118cb1 | 2001-10-15 20:51:38 +0000 | [diff] [blame] | 4046 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 4047 | getarray(long a[256]) |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 4048 | { |
| 4049 | int i; |
| 4050 | PyObject *l = PyList_New(256); |
| 4051 | if (l == NULL) return NULL; |
| 4052 | for (i = 0; i < 256; i++) { |
| 4053 | PyObject *x = PyInt_FromLong(a[i]); |
| 4054 | if (x == NULL) { |
| 4055 | Py_DECREF(l); |
| 4056 | return NULL; |
| 4057 | } |
| 4058 | PyList_SetItem(l, i, x); |
| 4059 | } |
| 4060 | for (i = 0; i < 256; i++) |
| 4061 | a[i] = 0; |
| 4062 | return l; |
| 4063 | } |
| 4064 | |
| 4065 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 4066 | _Py_GetDXProfile(PyObject *self, PyObject *args) |
Guido van Rossum | 950361c | 1997-01-24 13:49:28 +0000 | [diff] [blame] | 4067 | { |
| 4068 | #ifndef DXPAIRS |
| 4069 | return getarray(dxp); |
| 4070 | #else |
| 4071 | int i; |
| 4072 | PyObject *l = PyList_New(257); |
| 4073 | if (l == NULL) return NULL; |
| 4074 | for (i = 0; i < 257; i++) { |
| 4075 | PyObject *x = getarray(dxpairs[i]); |
| 4076 | if (x == NULL) { |
| 4077 | Py_DECREF(l); |
| 4078 | return NULL; |
| 4079 | } |
| 4080 | PyList_SetItem(l, i, x); |
| 4081 | } |
| 4082 | return l; |
| 4083 | #endif |
| 4084 | } |
| 4085 | |
| 4086 | #endif |