Mercurial Repositories > eric / file comparison
comparison: DebugClients/Python2/DebugBase.py
DebugClients/Python2/DebugBase.py
- changeset 5241
- 883e7084818d
- parent 5238
- 682d0f6a6074
- parent 5240
- 71c51aae2f4e
- child 5243
- f6346f4b46c2
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| 5238:682d0f6a6074 | 5241:883e7084818d |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2002 - 2016 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the debug base class. | |
| 8 """ | |
| 9 | |
| 10 import sys | |
| 11 import bdb | |
| 12 import os | |
| 13 import types | |
| 14 import atexit | |
| 15 import inspect | |
| 16 import ctypes | |
| 17 from inspect import CO_GENERATOR | |
| 18 | |
| 19 gRecursionLimit = 64 | |
| 20 | |
| 21 | |
| 22 def printerr(s): | |
| 23 """ | |
| 24 Module function used for debugging the debug client. | |
| 25 | |
| 26 @param s data to be printed | |
| 27 """ | |
| 28 sys.__stderr__.write('%s\n' % unicode(s)) | |
| 29 sys.__stderr__.flush() | |
| 30 | |
| 31 | |
| 32 def setRecursionLimit(limit): | |
| 33 """ | |
| 34 Module function to set the recursion limit. | |
| 35 | |
| 36 @param limit recursion limit (integer) | |
| 37 """ | |
| 38 global gRecursionLimit | |
| 39 gRecursionLimit = limit | |
| 40 | |
| 41 | |
| 42 class DebugBase(bdb.Bdb): | |
| 43 """ | |
| 44 Class implementing base class of the debugger. | |
| 45 | |
| 46 Provides simple wrapper methods around bdb for the 'owning' client to | |
| 47 call to step etc. | |
| 48 """ | |
| 49 def __init__(self, dbgClient): | |
| 50 """ | |
| 51 Constructor | |
| 52 | |
| 53 @param dbgClient the owning client | |
| 54 """ | |
| 55 bdb.Bdb.__init__(self) | |
| 56 | |
| 57 self._dbgClient = dbgClient | |
| 58 self._mainThread = True | |
| 59 | |
| 60 self.breaks = self._dbgClient.breakpoints | |
| 61 | |
| 62 self.__event = "" | |
| 63 self.__isBroken = "" | |
| 64 self.cFrame = None | |
| 65 | |
| 66 # current frame we are at | |
| 67 self.currentFrame = None | |
| 68 | |
| 69 # frame that we are stepping in, can be different than currentFrame | |
| 70 self.stepFrame = None | |
| 71 | |
| 72 # provide a hook to perform a hard breakpoint | |
| 73 # Use it like this: | |
| 74 # if hasattr(sys, 'breakpoint): sys.breakpoint() | |
| 75 sys.breakpoint = self.set_trace | |
| 76 | |
| 77 # initialize parent | |
| 78 bdb.Bdb.reset(self) | |
| 79 | |
| 80 self.__recursionDepth = -1 | |
| 81 self.setRecursionDepth(inspect.currentframe()) | |
| 82 | |
| 83 def getCurrentFrame(self): | |
| 84 """ | |
| 85 Public method to return the current frame. | |
| 86 | |
| 87 @return the current frame | |
| 88 """ | |
| 89 return self.currentFrame | |
| 90 | |
| 91 def getFrameLocals(self, frmnr=0): | |
| 92 """ | |
| 93 Public method to return the locals dictionary of the current frame | |
| 94 or a frame below. | |
| 95 | |
| 96 @keyparam frmnr distance of frame to get locals dictionary of. 0 is | |
| 97 the current frame (int) | |
| 98 @return locals dictionary of the frame | |
| 99 """ | |
| 100 f = self.currentFrame | |
| 101 while f is not None and frmnr > 0: | |
| 102 f = f.f_back | |
| 103 frmnr -= 1 | |
| 104 return f.f_locals | |
| 105 | |
| 106 def storeFrameLocals(self, frmnr=0): | |
| 107 """ | |
| 108 Public method to store the locals into the frame, so an access to | |
| 109 frame.f_locals returns the last data. | |
| 110 | |
| 111 @keyparam frmnr distance of frame to store locals dictionary to. 0 is | |
| 112 the current frame (int) | |
| 113 """ | |
| 114 cf = self.currentFrame | |
| 115 while cf is not None and frmnr > 0: | |
| 116 cf = cf.f_back | |
| 117 frmnr -= 1 | |
| 118 | |
| 119 try: | |
| 120 if "__pypy__" in sys.builtin_module_names: | |
| 121 import __pypy__ | |
| 122 __pypy__.locals_to_fast(cf) | |
| 123 return | |
| 124 except Exception: | |
| 125 pass | |
| 126 | |
| 127 ctypes.pythonapi.PyFrame_LocalsToFast( | |
| 128 ctypes.py_object(cf), | |
| 129 ctypes.c_int(0)) | |
| 130 | |
| 131 def step(self, traceMode): | |
| 132 """ | |
| 133 Public method to perform a step operation in this thread. | |
| 134 | |
| 135 @param traceMode If it is True, then the step is a step into, | |
| 136 otherwise it is a step over. | |
| 137 """ | |
| 138 self.stepFrame = self.currentFrame | |
| 139 | |
| 140 if traceMode: | |
| 141 self.currentFrame = None | |
| 142 self.set_step() | |
| 143 else: | |
| 144 self.set_next(self.currentFrame) | |
| 145 | |
| 146 def stepOut(self): | |
| 147 """ | |
| 148 Public method to perform a step out of the current call. | |
| 149 """ | |
| 150 self.stepFrame = self.currentFrame | |
| 151 self.set_return(self.currentFrame) | |
| 152 | |
| 153 def go(self, special): | |
| 154 """ | |
| 155 Public method to resume the thread. | |
| 156 | |
| 157 It resumes the thread stopping only at breakpoints or exceptions. | |
| 158 | |
| 159 @param special flag indicating a special continue operation | |
| 160 """ | |
| 161 self.currentFrame = None | |
| 162 self.set_continue(special) | |
| 163 | |
| 164 def setRecursionDepth(self, frame): | |
| 165 """ | |
| 166 Public method to determine the current recursion depth. | |
| 167 | |
| 168 @param frame The current stack frame. | |
| 169 """ | |
| 170 self.__recursionDepth = 0 | |
| 171 while frame is not None: | |
| 172 self.__recursionDepth += 1 | |
| 173 frame = frame.f_back | |
| 174 | |
| 175 def profile(self, frame, event, arg): | |
| 176 """ | |
| 177 Public method used to trace some stuff independent of the debugger | |
| 178 trace function. | |
| 179 | |
| 180 @param frame current stack frame. | |
| 181 @param event trace event (string) | |
| 182 @param arg arguments | |
| 183 @exception RuntimeError raised to indicate too many recursions | |
| 184 """ | |
| 185 if event == 'return': | |
| 186 self.cFrame = frame.f_back | |
| 187 self.__recursionDepth -= 1 | |
| 188 self.__sendCallTrace(event, frame, self.cFrame) | |
| 189 elif event == 'call': | |
| 190 self.__sendCallTrace(event, self.cFrame, frame) | |
| 191 self.cFrame = frame | |
| 192 self.__recursionDepth += 1 | |
| 193 if self.__recursionDepth > gRecursionLimit: | |
| 194 raise RuntimeError( | |
| 195 'maximum recursion depth exceeded\n' | |
| 196 '(offending frame is two down the stack)') | |
| 197 | |
| 198 def __sendCallTrace(self, event, fromFrame, toFrame): | |
| 199 """ | |
| 200 Private method to send a call/return trace. | |
| 201 | |
| 202 @param event trace event (string) | |
| 203 @param fromFrame originating frame (frame) | |
| 204 @param toFrame destination frame (frame) | |
| 205 """ | |
| 206 if self._dbgClient.callTraceEnabled: | |
| 207 if not self.__skip_it(fromFrame) and not self.__skip_it(toFrame): | |
| 208 if event in ["call", "return"]: | |
| 209 fr = fromFrame | |
| 210 fromInfo = { | |
| 211 "filename": self._dbgClient.absPath( | |
| 212 self.fix_frame_filename(fr)), | |
| 213 "linenumber": fr.f_lineno, | |
| 214 "codename": fr.f_code.co_name, | |
| 215 } | |
| 216 fr = toFrame | |
| 217 toInfo = { | |
| 218 "filename": self._dbgClient.absPath( | |
| 219 self.fix_frame_filename(fr)), | |
| 220 "linenumber": fr.f_lineno, | |
| 221 "codename": fr.f_code.co_name, | |
| 222 } | |
| 223 self._dbgClient.sendCallTrace(event, fromInfo, toInfo) | |
| 224 | |
| 225 def trace_dispatch(self, frame, event, arg): | |
| 226 """ | |
| 227 Public method reimplemented from bdb.py to do some special things. | |
| 228 | |
| 229 This specialty is to check the connection to the debug server | |
| 230 for new events (i.e. new breakpoints) while we are going through | |
| 231 the code. | |
| 232 | |
| 233 @param frame The current stack frame. | |
| 234 @param event The trace event (string) | |
| 235 @param arg The arguments | |
| 236 @return local trace function | |
| 237 """ | |
| 238 if self.quitting: | |
| 239 return # None | |
| 240 | |
| 241 # give the client a chance to push through new break points. | |
| 242 self._dbgClient.eventPoll() | |
| 243 | |
| 244 self.__event == event | |
| 245 self.__isBroken = False | |
| 246 | |
| 247 if event == 'line': | |
| 248 return self.dispatch_line(frame) | |
| 249 if event == 'call': | |
| 250 return self.dispatch_call(frame, arg) | |
| 251 if event == 'return': | |
| 252 return self.dispatch_return(frame, arg) | |
| 253 if event == 'exception': | |
| 254 return self.dispatch_exception(frame, arg) | |
| 255 if event == 'c_call': | |
| 256 return self.trace_dispatch | |
| 257 if event == 'c_exception': | |
| 258 return self.trace_dispatch | |
| 259 if event == 'c_return': | |
| 260 return self.trace_dispatch | |
| 261 print 'DebugBase.trace_dispatch: unknown debugging event:', repr(event) # __IGNORE_WARNING__ | |
| 262 return self.trace_dispatch | |
| 263 | |
| 264 def dispatch_line(self, frame): | |
| 265 """ | |
| 266 Public method reimplemented from bdb.py to do some special things. | |
| 267 | |
| 268 This speciality is to check the connection to the debug server | |
| 269 for new events (i.e. new breakpoints) while we are going through | |
| 270 the code. | |
| 271 | |
| 272 @param frame The current stack frame. | |
| 273 @return local trace function | |
| 274 @exception bdb.BdbQuit raised to indicate the end of the debug session | |
| 275 """ | |
| 276 if self.stop_here(frame) or self.break_here(frame): | |
| 277 self.user_line(frame) | |
| 278 if self.quitting: | |
| 279 raise bdb.BdbQuit | |
| 280 return self.trace_dispatch | |
| 281 | |
| 282 def dispatch_return(self, frame, arg): | |
| 283 """ | |
| 284 Public method reimplemented from bdb.py to handle passive mode cleanly. | |
| 285 | |
| 286 @param frame The current stack frame. | |
| 287 @param arg The arguments | |
| 288 @return local trace function | |
| 289 @exception bdb.BdbQuit raised to indicate the end of the debug session | |
| 290 """ | |
| 291 if self.stop_here(frame) or frame == self.returnframe: | |
| 292 # Ignore return events in generator except when stepping. | |
| 293 if self.stopframe and frame.f_code.co_flags & CO_GENERATOR: | |
| 294 return self.trace_dispatch | |
| 295 self.user_return(frame, arg) | |
| 296 if self.quitting and not self._dbgClient.passive: | |
| 297 raise bdb.BdbQuit | |
| 298 return self.trace_dispatch | |
| 299 | |
| 300 def dispatch_exception(self, frame, arg): | |
| 301 """ | |
| 302 Public method reimplemented from bdb.py to always call user_exception. | |
| 303 | |
| 304 @param frame The current stack frame. | |
| 305 @param arg The arguments | |
| 306 @return local trace function | |
| 307 @exception bdb.BdbQuit raised to indicate the end of the debug session | |
| 308 """ | |
| 309 if not self.__skip_it(frame): | |
| 310 # When stepping with next/until/return in a generator frame, | |
| 311 # skip the internal StopIteration exception (with no traceback) | |
| 312 # triggered by a subiterator run with the 'yield from' | |
| 313 # statement. | |
| 314 if not (frame.f_code.co_flags & CO_GENERATOR and | |
| 315 arg[0] is StopIteration and arg[2] is None): | |
| 316 self.user_exception(frame, arg) | |
| 317 if self.quitting: | |
| 318 raise bdb.BdbQuit | |
| 319 | |
| 320 # Stop at the StopIteration or GeneratorExit exception when the user | |
| 321 # has set stopframe in a generator by issuing a return command, or a | |
| 322 # next/until command at the last statement in the generator before the | |
| 323 # exception. | |
| 324 elif (self.stopframe and frame is not self.stopframe and | |
| 325 self.stopframe.f_code.co_flags & CO_GENERATOR and | |
| 326 arg[0] in (StopIteration, GeneratorExit)): | |
| 327 self.user_exception(frame, arg) | |
| 328 if self.quitting: | |
| 329 raise bdb.BdbQuit | |
| 330 | |
| 331 return self.trace_dispatch | |
| 332 | |
| 333 def set_trace(self, frame=None): | |
| 334 """ | |
| 335 Public method reimplemented from bdb.py to do some special setup. | |
| 336 | |
| 337 @param frame frame to start debugging from | |
| 338 """ | |
| 339 bdb.Bdb.set_trace(self, frame) | |
| 340 sys.setprofile(self.profile) | |
| 341 | |
| 342 def set_continue(self, special): | |
| 343 """ | |
| 344 Public method reimplemented from bdb.py to always get informed of | |
| 345 exceptions. | |
| 346 | |
| 347 @param special flag indicating a special continue operation | |
| 348 """ | |
| 349 # Modified version of the one found in bdb.py | |
| 350 # Here we only set a new stop frame if it is a normal continue. | |
| 351 if not special: | |
| 352 self._set_stopinfo(self.botframe, None) | |
| 353 else: | |
| 354 self._set_stopinfo(self.stopframe, None) | |
| 355 | |
| 356 def set_quit(self): | |
| 357 """ | |
| 358 Public method to quit. | |
| 359 | |
| 360 It wraps call to bdb to clear the current frame properly. | |
| 361 """ | |
| 362 self.currentFrame = None | |
| 363 sys.setprofile(None) | |
| 364 bdb.Bdb.set_quit(self) | |
| 365 | |
| 366 def fix_frame_filename(self, frame): | |
| 367 """ | |
| 368 Public method used to fixup the filename for a given frame. | |
| 369 | |
| 370 The logic employed here is that if a module was loaded | |
| 371 from a .pyc file, then the correct .py to operate with | |
| 372 should be in the same path as the .pyc. The reason this | |
| 373 logic is needed is that when a .pyc file is generated, the | |
| 374 filename embedded and thus what is readable in the code object | |
| 375 of the frame object is the fully qualified filepath when the | |
| 376 pyc is generated. If files are moved from machine to machine | |
| 377 this can break debugging as the .pyc will refer to the .py | |
| 378 on the original machine. Another case might be sharing | |
| 379 code over a network... This logic deals with that. | |
| 380 | |
| 381 @param frame the frame object | |
| 382 @return fixed up file name (string) | |
| 383 """ | |
| 384 # get module name from __file__ | |
| 385 if '__file__' in frame.f_globals and \ | |
| 386 frame.f_globals['__file__'] and \ | |
| 387 frame.f_globals['__file__'] == frame.f_code.co_filename: | |
| 388 root, ext = os.path.splitext(frame.f_globals['__file__']) | |
| 389 if ext in ['.pyc', '.py', '.py2', '.pyo']: | |
| 390 fixedName = root + '.py' | |
| 391 if os.path.exists(fixedName): | |
| 392 return fixedName | |
| 393 | |
| 394 fixedName = root + '.py2' | |
| 395 if os.path.exists(fixedName): | |
| 396 return fixedName | |
| 397 | |
| 398 return frame.f_code.co_filename | |
| 399 | |
| 400 def set_watch(self, cond, temporary=False): | |
| 401 """ | |
| 402 Public method to set a watch expression. | |
| 403 | |
| 404 @param cond expression of the watch expression (string) | |
| 405 @param temporary flag indicating a temporary watch expression (boolean) | |
| 406 """ | |
| 407 bp = bdb.Breakpoint("Watch", 0, temporary, cond) | |
| 408 if cond.endswith('??created??') or cond.endswith('??changed??'): | |
| 409 bp.condition, bp.special = cond.split() | |
| 410 else: | |
| 411 bp.condition = cond | |
| 412 bp.special = "" | |
| 413 bp.values = {} | |
| 414 if "Watch" not in self.breaks: | |
| 415 self.breaks["Watch"] = 1 | |
| 416 else: | |
| 417 self.breaks["Watch"] += 1 | |
| 418 | |
| 419 def clear_watch(self, cond): | |
| 420 """ | |
| 421 Public method to clear a watch expression. | |
| 422 | |
| 423 @param cond expression of the watch expression to be cleared (string) | |
| 424 """ | |
| 425 try: | |
| 426 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 427 for i in range(0, len(possibles)): | |
| 428 b = possibles[i] | |
| 429 if b.cond == cond: | |
| 430 b.deleteMe() | |
| 431 self.breaks["Watch"] -= 1 | |
| 432 if self.breaks["Watch"] == 0: | |
| 433 del self.breaks["Watch"] | |
| 434 break | |
| 435 except KeyError: | |
| 436 pass | |
| 437 | |
| 438 def get_watch(self, cond): | |
| 439 """ | |
| 440 Public method to get a watch expression. | |
| 441 | |
| 442 @param cond expression of the watch expression to be cleared (string) | |
| 443 @return reference to the watch point | |
| 444 """ | |
| 445 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 446 for i in range(0, len(possibles)): | |
| 447 b = possibles[i] | |
| 448 if b.cond == cond: | |
| 449 return b | |
| 450 | |
| 451 def __do_clearWatch(self, cond): | |
| 452 """ | |
| 453 Private method called to clear a temporary watch expression. | |
| 454 | |
| 455 @param cond expression of the watch expression to be cleared (string) | |
| 456 """ | |
| 457 self.clear_watch(cond) | |
| 458 self._dbgClient.sendClearTemporaryWatch(cond) | |
| 459 | |
| 460 def __effective(self, frame): | |
| 461 """ | |
| 462 Private method to determine, if a watch expression is effective. | |
| 463 | |
| 464 @param frame the current execution frame | |
| 465 @return tuple of watch expression and a flag to indicate, that a | |
| 466 temporary watch expression may be deleted (bdb.Breakpoint, boolean) | |
| 467 """ | |
| 468 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 469 for i in range(0, len(possibles)): | |
| 470 b = possibles[i] | |
| 471 if not b.enabled: | |
| 472 continue | |
| 473 if not b.cond: | |
| 474 # watch expression without expression shouldn't occur, | |
| 475 # just ignore it | |
| 476 continue | |
| 477 try: | |
| 478 val = eval(b.condition, frame.f_globals, frame.f_locals) | |
| 479 if b.special: | |
| 480 if b.special == '??created??': | |
| 481 if b.values[frame][0] == 0: | |
| 482 b.values[frame][0] = 1 | |
| 483 b.values[frame][1] = val | |
| 484 return (b, True) | |
| 485 else: | |
| 486 continue | |
| 487 b.values[frame][0] = 1 | |
| 488 if b.special == '??changed??': | |
| 489 if b.values[frame][1] != val: | |
| 490 b.values[frame][1] = val | |
| 491 if b.values[frame][2] > 0: | |
| 492 b.values[frame][2] -= 1 | |
| 493 continue | |
| 494 else: | |
| 495 return (b, True) | |
| 496 else: | |
| 497 continue | |
| 498 continue | |
| 499 if val: | |
| 500 if b.ignore > 0: | |
| 501 b.ignore -= 1 | |
| 502 continue | |
| 503 else: | |
| 504 return (b, True) | |
| 505 except Exception: | |
| 506 if b.special: | |
| 507 try: | |
| 508 b.values[frame][0] = 0 | |
| 509 except KeyError: | |
| 510 b.values[frame] = [0, None, b.ignore] | |
| 511 continue | |
| 512 return (None, False) | |
| 513 | |
| 514 def break_here(self, frame): | |
| 515 """ | |
| 516 Public method reimplemented from bdb.py to fix the filename from the | |
| 517 frame. | |
| 518 | |
| 519 See fix_frame_filename for more info. | |
| 520 | |
| 521 @param frame the frame object | |
| 522 @return flag indicating the break status (boolean) | |
| 523 """ | |
| 524 filename = self.canonic(self.fix_frame_filename(frame)) | |
| 525 if filename not in self.breaks and "Watch" not in self.breaks: | |
| 526 return False | |
| 527 | |
| 528 if filename in self.breaks: | |
| 529 lineno = frame.f_lineno | |
| 530 if lineno not in self.breaks[filename]: | |
| 531 # The line itself has no breakpoint, but maybe the line is the | |
| 532 # first line of a function with breakpoint set by function | |
| 533 # name. | |
| 534 lineno = frame.f_code.co_firstlineno | |
| 535 if lineno in self.breaks[filename]: | |
| 536 # flag says ok to delete temp. breakpoint | |
| 537 (bp, flag) = bdb.effective(filename, lineno, frame) | |
| 538 if bp: | |
| 539 self.currentbp = bp.number | |
| 540 if (flag and bp.temporary): | |
| 541 self.__do_clear(filename, lineno) | |
| 542 return True | |
| 543 | |
| 544 if "Watch" in self.breaks: | |
| 545 # flag says ok to delete temp. watch | |
| 546 (bp, flag) = self.__effective(frame) | |
| 547 if bp: | |
| 548 self.currentbp = bp.number | |
| 549 if (flag and bp.temporary): | |
| 550 self.__do_clearWatch(bp.cond) | |
| 551 return True | |
| 552 | |
| 553 return False | |
| 554 | |
| 555 def break_anywhere(self, frame): | |
| 556 """ | |
| 557 Public method reimplemented from bdb.py to do some special things. | |
| 558 | |
| 559 These speciality is to fix the filename from the frame | |
| 560 (see fix_frame_filename for more info). | |
| 561 | |
| 562 @param frame the frame object | |
| 563 @return flag indicating the break status (boolean) | |
| 564 """ | |
| 565 return \ | |
| 566 self.canonic(self.fix_frame_filename(frame)) in self.breaks or \ | |
| 567 ("Watch" in self.breaks and self.breaks["Watch"]) | |
| 568 | |
| 569 def get_break(self, filename, lineno): | |
| 570 """ | |
| 571 Public method reimplemented from bdb.py to get the first breakpoint of | |
| 572 a particular line. | |
| 573 | |
| 574 Because eric6 supports only one breakpoint per line, this overwritten | |
| 575 method will return this one and only breakpoint. | |
| 576 | |
| 577 @param filename file name of the bp to retrieve (string) | |
| 578 @param lineno line number of the bp to retrieve (integer) | |
| 579 @return breakpoint or None, if there is no bp | |
| 580 """ | |
| 581 filename = self.canonic(filename) | |
| 582 return filename in self.breaks and \ | |
| 583 lineno in self.breaks[filename] and \ | |
| 584 bdb.Breakpoint.bplist[filename, lineno][0] or None | |
| 585 | |
| 586 def __do_clear(self, filename, lineno): | |
| 587 """ | |
| 588 Private method called to clear a temporary breakpoint. | |
| 589 | |
| 590 @param filename name of the file the bp belongs to | |
| 591 @param lineno linenumber of the bp | |
| 592 """ | |
| 593 self.clear_break(filename, lineno) | |
| 594 self._dbgClient.sendClearTemporaryBreakpoint(filename, lineno) | |
| 595 | |
| 596 def getStack(self): | |
| 597 """ | |
| 598 Public method to get the stack. | |
| 599 | |
| 600 @return list of lists with file name (string), line number (integer) | |
| 601 and function name (string) | |
| 602 """ | |
| 603 fr = self.cFrame | |
| 604 stack = [] | |
| 605 while fr is not None: | |
| 606 fname = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 607 if not fname.startswith("<") and not fname.endswith("bdb.py"): | |
| 608 fline = fr.f_lineno | |
| 609 ffunc = fr.f_code.co_name | |
| 610 | |
| 611 if ffunc == '?': | |
| 612 ffunc = '' | |
| 613 | |
| 614 if ffunc and not ffunc.startswith("<"): | |
| 615 argInfo = inspect.getargvalues(fr) | |
| 616 try: | |
| 617 fargs = inspect.formatargvalues(argInfo[0], argInfo[1], | |
| 618 argInfo[2], argInfo[3]) | |
| 619 except Exception: | |
| 620 fargs = "" | |
| 621 else: | |
| 622 fargs = "" | |
| 623 | |
| 624 stack.append([fname, fline, ffunc, fargs]) | |
| 625 | |
| 626 if fr == self._dbgClient.mainFrame: | |
| 627 fr = None | |
| 628 else: | |
| 629 fr = fr.f_back | |
| 630 | |
| 631 return stack | |
| 632 | |
| 633 def user_line(self, frame): | |
| 634 """ | |
| 635 Public method reimplemented to handle the program about to execute a | |
| 636 particular line. | |
| 637 | |
| 638 @param frame the frame object | |
| 639 """ | |
| 640 line = frame.f_lineno | |
| 641 | |
| 642 # We never stop on line 0. | |
| 643 if line == 0: | |
| 644 return | |
| 645 | |
| 646 fn = self._dbgClient.absPath(self.fix_frame_filename(frame)) | |
| 647 | |
| 648 # See if we are skipping at the start of a newly loaded program. | |
| 649 if self._dbgClient.mainFrame is None: | |
| 650 if fn != self._dbgClient.getRunning(): | |
| 651 return | |
| 652 fr = frame | |
| 653 while (fr is not None and | |
| 654 fr.f_code not in [ | |
| 655 self._dbgClient.handleLine.func_code, | |
| 656 self._dbgClient.handleJsonCommand.func_code]): | |
| 657 self._dbgClient.mainFrame = fr | |
| 658 fr = fr.f_back | |
| 659 | |
| 660 self.currentFrame = frame | |
| 661 | |
| 662 fr = frame | |
| 663 stack = [] | |
| 664 while fr is not None: | |
| 665 # Reset the trace function so we can be sure | |
| 666 # to trace all functions up the stack... This gets around | |
| 667 # problems where an exception/breakpoint has occurred | |
| 668 # but we had disabled tracing along the way via a None | |
| 669 # return from dispatch_call | |
| 670 fr.f_trace = self.trace_dispatch | |
| 671 fname = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 672 if not fname.startswith("<") and not fname.endswith("bdb.py"): | |
| 673 fline = fr.f_lineno | |
| 674 ffunc = fr.f_code.co_name | |
| 675 | |
| 676 if ffunc == '?': | |
| 677 ffunc = '' | |
| 678 | |
| 679 if ffunc and not ffunc.startswith("<"): | |
| 680 argInfo = inspect.getargvalues(fr) | |
| 681 try: | |
| 682 fargs = inspect.formatargvalues(argInfo[0], argInfo[1], | |
| 683 argInfo[2], argInfo[3]) | |
| 684 except Exception: | |
| 685 fargs = "" | |
| 686 else: | |
| 687 fargs = "" | |
| 688 | |
| 689 stack.append([fname, fline, ffunc, fargs]) | |
| 690 | |
| 691 if fr == self._dbgClient.mainFrame: | |
| 692 fr = None | |
| 693 else: | |
| 694 fr = fr.f_back | |
| 695 | |
| 696 self.__isBroken = True | |
| 697 | |
| 698 self._dbgClient.sendResponseLine(stack) | |
| 699 self._dbgClient.eventLoop() | |
| 700 | |
| 701 def user_exception(self, frame, (exctype, excval, exctb), unhandled=0): | |
| 702 """ | |
| 703 Public method reimplemented to report an exception to the debug server. | |
| 704 | |
| 705 @param frame the frame object | |
| 706 @param exctype the type of the exception | |
| 707 @param excval data about the exception | |
| 708 @param exctb traceback for the exception | |
| 709 @param unhandled flag indicating an uncaught exception | |
| 710 """ | |
| 711 if exctype in [GeneratorExit, StopIteration]: | |
| 712 # ignore these | |
| 713 return | |
| 714 | |
| 715 if exctype in [SystemExit, bdb.BdbQuit]: | |
| 716 atexit._run_exitfuncs() | |
| 717 if excval is None: | |
| 718 exitcode = 0 | |
| 719 message = "" | |
| 720 elif isinstance(excval, (unicode, str)): | |
| 721 exitcode = 1 | |
| 722 message = excval | |
| 723 elif isinstance(excval, int): | |
| 724 exitcode = excval | |
| 725 message = "" | |
| 726 elif isinstance(excval, SystemExit): | |
| 727 code = excval.code | |
| 728 if isinstance(code, (unicode, str)): | |
| 729 exitcode = 1 | |
| 730 message = code | |
| 731 elif isinstance(code, int): | |
| 732 exitcode = code | |
| 733 message = "" | |
| 734 else: | |
| 735 exitcode = 1 | |
| 736 message = str(code) | |
| 737 else: | |
| 738 exitcode = 1 | |
| 739 message = str(excval) | |
| 740 self._dbgClient.progTerminated(exitcode, message) | |
| 741 return | |
| 742 | |
| 743 if exctype in [SyntaxError, IndentationError]: | |
| 744 try: | |
| 745 if type(excval) == tuple: | |
| 746 message, (filename, lineno, charno, text) = excval | |
| 747 else: | |
| 748 message = excval.msg | |
| 749 filename = excval.filename | |
| 750 lineno = excval.lineno | |
| 751 charno = excval.offset | |
| 752 if charno is None: | |
| 753 charno = 0 | |
| 754 | |
| 755 filename = os.path.abspath(filename) | |
| 756 realSyntaxError = os.path.exists(filename) | |
| 757 except ValueError: | |
| 758 message = "" | |
| 759 filename = "" | |
| 760 lineno = 0 | |
| 761 charno = 0 | |
| 762 realSyntaxError = True | |
| 763 | |
| 764 if realSyntaxError: | |
| 765 self._dbgClient.sendSyntaxError( | |
| 766 message, filename, lineno, charno) | |
| 767 self._dbgClient.eventLoop() | |
| 768 return | |
| 769 | |
| 770 if type(exctype) in [types.ClassType, # Python up to 2.4 | |
| 771 types.TypeType]: # Python 2.5+ | |
| 772 exctype = exctype.__name__ | |
| 773 | |
| 774 if excval is None: | |
| 775 excval = '' | |
| 776 | |
| 777 if unhandled: | |
| 778 exctypetxt = "unhandled %s" % unicode(exctype) | |
| 779 else: | |
| 780 exctypetxt = unicode(exctype) | |
| 781 try: | |
| 782 excvaltxt = unicode(excval).encode(self._dbgClient.getCoding()) | |
| 783 except TypeError: | |
| 784 excvaltxt = str(excval) | |
| 785 | |
| 786 stack = [] | |
| 787 if exctb: | |
| 788 frlist = self.__extract_stack(exctb) | |
| 789 frlist.reverse() | |
| 790 | |
| 791 self.currentFrame = frlist[0] | |
| 792 | |
| 793 for fr in frlist: | |
| 794 filename = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 795 | |
| 796 if os.path.basename(filename).startswith("DebugClient") or \ | |
| 797 os.path.basename(filename) == "bdb.py": | |
| 798 break | |
| 799 | |
| 800 linenr = fr.f_lineno | |
| 801 ffunc = fr.f_code.co_name | |
| 802 | |
| 803 if ffunc == '?': | |
| 804 ffunc = '' | |
| 805 | |
| 806 if ffunc and not ffunc.startswith("<"): | |
| 807 argInfo = inspect.getargvalues(fr) | |
| 808 try: | |
| 809 fargs = inspect.formatargvalues(argInfo[0], argInfo[1], | |
| 810 argInfo[2], argInfo[3]) | |
| 811 except Exception: | |
| 812 fargs = "" | |
| 813 else: | |
| 814 fargs = "" | |
| 815 | |
| 816 stack.append([filename, linenr, ffunc, fargs]) | |
| 817 | |
| 818 self._dbgClient.sendException(exctypetxt, excvaltxt, stack) | |
| 819 | |
| 820 if exctb is None: | |
| 821 return | |
| 822 | |
| 823 self._dbgClient.eventLoop() | |
| 824 | |
| 825 def __extract_stack(self, exctb): | |
| 826 """ | |
| 827 Private member to return a list of stack frames. | |
| 828 | |
| 829 @param exctb exception traceback | |
| 830 @return list of stack frames | |
| 831 """ | |
| 832 tb = exctb | |
| 833 stack = [] | |
| 834 while tb is not None: | |
| 835 stack.append(tb.tb_frame) | |
| 836 tb = tb.tb_next | |
| 837 tb = None | |
| 838 return stack | |
| 839 | |
| 840 def user_return(self, frame, retval): | |
| 841 """ | |
| 842 Public method reimplemented to report program termination to the | |
| 843 debug server. | |
| 844 | |
| 845 @param frame the frame object | |
| 846 @param retval the return value of the program | |
| 847 """ | |
| 848 # The program has finished if we have just left the first frame. | |
| 849 if frame == self._dbgClient.mainFrame and \ | |
| 850 self._mainThread: | |
| 851 atexit._run_exitfuncs() | |
| 852 self._dbgClient.progTerminated(retval) | |
| 853 elif frame is not self.stepFrame: | |
| 854 self.stepFrame = None | |
| 855 self.user_line(frame) | |
| 856 | |
| 857 def stop_here(self, frame): | |
| 858 """ | |
| 859 Public method reimplemented to filter out debugger files. | |
| 860 | |
| 861 Tracing is turned off for files that are part of the | |
| 862 debugger that are called from the application being debugged. | |
| 863 | |
| 864 @param frame the frame object | |
| 865 @return flag indicating whether the debugger should stop here | |
| 866 """ | |
| 867 if self.__skip_it(frame): | |
| 868 return False | |
| 869 return bdb.Bdb.stop_here(self, frame) | |
| 870 | |
| 871 def __skip_it(self, frame): | |
| 872 """ | |
| 873 Private method to filter out debugger files. | |
| 874 | |
| 875 Tracing is turned off for files that are part of the | |
| 876 debugger that are called from the application being debugged. | |
| 877 | |
| 878 @param frame the frame object | |
| 879 @return flag indicating whether the debugger should skip this frame | |
| 880 """ | |
| 881 if frame is None: | |
| 882 return True | |
| 883 | |
| 884 fn = self.fix_frame_filename(frame) | |
| 885 | |
| 886 # Eliminate things like <string> and <stdin>. | |
| 887 if fn[0] == '<': | |
| 888 return True | |
| 889 | |
| 890 #XXX - think of a better way to do this. It's only a convenience for | |
| 891 #debugging the debugger - when the debugger code is in the current | |
| 892 #directory. | |
| 893 if os.path.basename(fn) in [ | |
| 894 'AsyncFile.py', 'DCTestResult.py', | |
| 895 'DebugBase.py', 'DebugClient.py', | |
| 896 'DebugClientBase.py', | |
| 897 'DebugClientCapabilities.py', | |
| 898 'DebugClientThreads.py', | |
| 899 'DebugConfig.py', 'DebugThread.py', | |
| 900 'DebugUtilities.py', 'DebugVariables.py', | |
| 901 'FlexCompleter.py', 'PyProfile.py'] or \ | |
| 902 os.path.dirname(fn).endswith("coverage"): | |
| 903 return True | |
| 904 | |
| 905 if self._dbgClient.shouldSkip(fn): | |
| 906 return True | |
| 907 | |
| 908 return False | |
| 909 | |
| 910 def isBroken(self): | |
| 911 """ | |
| 912 Public method to return the broken state of the debugger. | |
| 913 | |
| 914 @return flag indicating the broken state (boolean) | |
| 915 """ | |
| 916 return self.__isBroken | |
| 917 | |
| 918 def getEvent(self): | |
| 919 """ | |
| 920 Protected method to return the last debugger event. | |
| 921 | |
| 922 @return last debugger event (string) | |
| 923 """ | |
| 924 return self.__event | |
| 925 | |
| 926 # | |
| 927 # eflag: FileType = Python2 | |
| 928 # eflag: noqa = M601, M702 |
