Mercurial Repositories > eric / file comparison
comparison: DebugClients/Python/DebugBase.py
DebugClients/Python/DebugBase.py
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2002 - 2009 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the debug base class. | |
| 8 """ | |
| 9 | |
| 10 import sys | |
| 11 import traceback | |
| 12 import bdb | |
| 13 import os | |
| 14 import types | |
| 15 import atexit | |
| 16 import inspect | |
| 17 | |
| 18 from DebugProtocol import * | |
| 19 | |
| 20 gRecursionLimit = 64 | |
| 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 import sys | |
| 29 sys.__stderr__.write('%s\n' % unicode(s)) | |
| 30 sys.__stderr__.flush() | |
| 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 class DebugBase(bdb.Bdb): | |
| 42 """ | |
| 43 Class implementing base class of the debugger. | |
| 44 | |
| 45 Provides simple wrapper methods around bdb for the 'owning' client to | |
| 46 call to step etc. | |
| 47 """ | |
| 48 def __init__(self, dbgClient): | |
| 49 """ | |
| 50 Constructor | |
| 51 | |
| 52 @param dbgClient the owning client | |
| 53 """ | |
| 54 bdb.Bdb.__init__(self) | |
| 55 | |
| 56 self._dbgClient = dbgClient | |
| 57 self._mainThread = 1 | |
| 58 | |
| 59 self.breaks = self._dbgClient.breakpoints | |
| 60 | |
| 61 self.__event = "" | |
| 62 self.__isBroken = "" | |
| 63 self.cFrame = None | |
| 64 | |
| 65 # current frame we are at | |
| 66 self.currentFrame = None | |
| 67 | |
| 68 # frame that we are stepping in, can be different than currentFrame | |
| 69 self.stepFrame = None | |
| 70 | |
| 71 # provide a hook to perform a hard breakpoint | |
| 72 # Use it like this: | |
| 73 # if hasattr(sys, 'breakpoint): sys.breakpoint() | |
| 74 sys.breakpoint = self.set_trace | |
| 75 | |
| 76 # initialize parent | |
| 77 bdb.Bdb.reset(self) | |
| 78 | |
| 79 self.__recursionDepth = -1 | |
| 80 self.setRecursionDepth(inspect.currentframe()) | |
| 81 | |
| 82 def getCurrentFrame(self): | |
| 83 """ | |
| 84 Public method to return the current frame. | |
| 85 | |
| 86 @return the current frame | |
| 87 """ | |
| 88 return self.currentFrame | |
| 89 | |
| 90 def step(self, traceMode): | |
| 91 """ | |
| 92 Public method to perform a step operation in this thread. | |
| 93 | |
| 94 @param traceMode If it is non-zero, then the step is a step into, | |
| 95 otherwise it is a step over. | |
| 96 """ | |
| 97 self.stepFrame = self.currentFrame | |
| 98 | |
| 99 if traceMode: | |
| 100 self.currentFrame = None | |
| 101 self.set_step() | |
| 102 else: | |
| 103 self.set_next(self.currentFrame) | |
| 104 | |
| 105 def stepOut(self): | |
| 106 """ | |
| 107 Public method to perform a step out of the current call. | |
| 108 """ | |
| 109 self.stepFrame = self.currentFrame | |
| 110 self.set_return(self.currentFrame) | |
| 111 | |
| 112 def go(self, special): | |
| 113 """ | |
| 114 Public method to resume the thread. | |
| 115 | |
| 116 It resumes the thread stopping only at breakpoints or exceptions. | |
| 117 | |
| 118 @param special flag indicating a special continue operation | |
| 119 """ | |
| 120 self.currentFrame = None | |
| 121 self.set_continue(special) | |
| 122 | |
| 123 def setRecursionDepth(self, frame): | |
| 124 """ | |
| 125 Public method to determine the current recursion depth. | |
| 126 | |
| 127 @param frame The current stack frame. | |
| 128 """ | |
| 129 self.__recursionDepth = 0 | |
| 130 while frame is not None: | |
| 131 self.__recursionDepth += 1 | |
| 132 frame = frame.f_back | |
| 133 | |
| 134 def profile(self, frame, event, arg): | |
| 135 """ | |
| 136 Public method used to trace some stuff independant of the debugger | |
| 137 trace function. | |
| 138 | |
| 139 @param frame The current stack frame. | |
| 140 @param event The trace event (string) | |
| 141 @param arg The arguments | |
| 142 """ | |
| 143 if event == 'return': | |
| 144 self.cFrame = frame.f_back | |
| 145 self.__recursionDepth -= 1 | |
| 146 elif event == 'call': | |
| 147 self.cFrame = frame | |
| 148 self.__recursionDepth += 1 | |
| 149 if self.__recursionDepth > gRecursionLimit: | |
| 150 raise RuntimeError('maximum recursion depth exceeded\n' | |
| 151 '(offending frame is two down the stack)') | |
| 152 | |
| 153 def trace_dispatch(self, frame, event, arg): | |
| 154 """ | |
| 155 Reimplemented from bdb.py to do some special things. | |
| 156 | |
| 157 This specialty is to check the connection to the debug server | |
| 158 for new events (i.e. new breakpoints) while we are going through | |
| 159 the code. | |
| 160 | |
| 161 @param frame The current stack frame. | |
| 162 @param event The trace event (string) | |
| 163 @param arg The arguments | |
| 164 @return local trace function | |
| 165 """ | |
| 166 if self.quitting: | |
| 167 return # None | |
| 168 | |
| 169 # give the client a chance to push through new break points. | |
| 170 self._dbgClient.eventPoll() | |
| 171 | |
| 172 self.__event == event | |
| 173 self.__isBroken = False | |
| 174 | |
| 175 if event == 'line': | |
| 176 return self.dispatch_line(frame) | |
| 177 if event == 'call': | |
| 178 return self.dispatch_call(frame, arg) | |
| 179 if event == 'return': | |
| 180 return self.dispatch_return(frame, arg) | |
| 181 if event == 'exception': | |
| 182 return self.dispatch_exception(frame, arg) | |
| 183 if event == 'c_call': | |
| 184 return self.trace_dispatch | |
| 185 if event == 'c_exception': | |
| 186 return self.trace_dispatch | |
| 187 if event == 'c_return': | |
| 188 return self.trace_dispatch | |
| 189 print 'DebugBase.trace_dispatch: unknown debugging event:', `event` | |
| 190 return self.trace_dispatch | |
| 191 | |
| 192 def dispatch_line(self, frame): | |
| 193 """ | |
| 194 Reimplemented from bdb.py to do some special things. | |
| 195 | |
| 196 This speciality is to check the connection to the debug server | |
| 197 for new events (i.e. new breakpoints) while we are going through | |
| 198 the code. | |
| 199 | |
| 200 @param frame The current stack frame. | |
| 201 @return local trace function | |
| 202 """ | |
| 203 if self.stop_here(frame) or self.break_here(frame): | |
| 204 self.user_line(frame) | |
| 205 if self.quitting: raise bdb.BdbQuit | |
| 206 return self.trace_dispatch | |
| 207 | |
| 208 def dispatch_return(self, frame, arg): | |
| 209 """ | |
| 210 Reimplemented from bdb.py to handle passive mode cleanly. | |
| 211 | |
| 212 @param frame The current stack frame. | |
| 213 @param arg The arguments | |
| 214 @return local trace function | |
| 215 """ | |
| 216 if self.stop_here(frame) or frame == self.returnframe: | |
| 217 self.user_return(frame, arg) | |
| 218 if self.quitting and not self._dbgClient.passive: | |
| 219 raise bdb.BdbQuit | |
| 220 return self.trace_dispatch | |
| 221 | |
| 222 def dispatch_exception(self, frame, arg): | |
| 223 """ | |
| 224 Reimplemented from bdb.py to always call user_exception. | |
| 225 | |
| 226 @param frame The current stack frame. | |
| 227 @param arg The arguments | |
| 228 @return local trace function | |
| 229 """ | |
| 230 if not self.__skip_it(frame): | |
| 231 self.user_exception(frame, arg) | |
| 232 if self.quitting: raise bdb.BdbQuit | |
| 233 return self.trace_dispatch | |
| 234 | |
| 235 def set_trace(self, frame = None): | |
| 236 """ | |
| 237 Overridden method of bdb.py to do some special setup. | |
| 238 | |
| 239 @param frame frame to start debugging from | |
| 240 """ | |
| 241 bdb.Bdb.set_trace(self, frame) | |
| 242 sys.setprofile(self.profile) | |
| 243 | |
| 244 def set_continue(self, special): | |
| 245 """ | |
| 246 Reimplemented from bdb.py to always get informed of exceptions. | |
| 247 | |
| 248 @param special flag indicating a special continue operation | |
| 249 """ | |
| 250 # Modified version of the one found in bdb.py | |
| 251 # Here we only set a new stop frame if it is a normal continue. | |
| 252 if not special: | |
| 253 self.stopframe = self.botframe | |
| 254 self.returnframe = None | |
| 255 self.quitting = 0 | |
| 256 | |
| 257 def set_quit(self): | |
| 258 """ | |
| 259 Public method to quit. | |
| 260 | |
| 261 It wraps call to bdb to clear the current frame properly. | |
| 262 """ | |
| 263 self.currentFrame = None | |
| 264 sys.setprofile(None) | |
| 265 bdb.Bdb.set_quit(self) | |
| 266 | |
| 267 def fix_frame_filename(self, frame): | |
| 268 """ | |
| 269 Public method used to fixup the filename for a given frame. | |
| 270 | |
| 271 The logic employed here is that if a module was loaded | |
| 272 from a .pyc file, then the correct .py to operate with | |
| 273 should be in the same path as the .pyc. The reason this | |
| 274 logic is needed is that when a .pyc file is generated, the | |
| 275 filename embedded and thus what is readable in the code object | |
| 276 of the frame object is the fully qualified filepath when the | |
| 277 pyc is generated. If files are moved from machine to machine | |
| 278 this can break debugging as the .pyc will refer to the .py | |
| 279 on the original machine. Another case might be sharing | |
| 280 code over a network... This logic deals with that. | |
| 281 | |
| 282 @param frame the frame object | |
| 283 """ | |
| 284 # get module name from __file__ | |
| 285 if frame.f_globals.has_key('__file__') and \ | |
| 286 frame.f_globals['__file__'] and \ | |
| 287 frame.f_globals['__file__'] == frame.f_code.co_filename: | |
| 288 root, ext = os.path.splitext(frame.f_globals['__file__']) | |
| 289 if ext == '.pyc' or ext == '.py' or ext == '.pyo': | |
| 290 fixedName = root + '.py' | |
| 291 if os.path.exists(fixedName): | |
| 292 return fixedName | |
| 293 | |
| 294 return frame.f_code.co_filename | |
| 295 | |
| 296 def set_watch(self, cond, temporary=0): | |
| 297 """ | |
| 298 Public method to set a watch expression. | |
| 299 | |
| 300 @param cond expression of the watch expression (string) | |
| 301 @param temporary flag indicating a temporary watch expression (boolean) | |
| 302 """ | |
| 303 bp = bdb.Breakpoint("Watch", 0, temporary, cond) | |
| 304 if cond.endswith('??created??') or cond.endswith('??changed??'): | |
| 305 bp.condition, bp.special = cond.split() | |
| 306 else: | |
| 307 bp.condition = cond | |
| 308 bp.special = "" | |
| 309 bp.values = {} | |
| 310 if not self.breaks.has_key("Watch"): | |
| 311 self.breaks["Watch"] = 1 | |
| 312 else: | |
| 313 self.breaks["Watch"] += 1 | |
| 314 | |
| 315 def clear_watch(self, cond): | |
| 316 """ | |
| 317 Public method to clear a watch expression. | |
| 318 | |
| 319 @param cond expression of the watch expression to be cleared (string) | |
| 320 """ | |
| 321 try: | |
| 322 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 323 for i in range(0, len(possibles)): | |
| 324 b = possibles[i] | |
| 325 if b.cond == cond: | |
| 326 b.deleteMe() | |
| 327 self.breaks["Watch"] -= 1 | |
| 328 if self.breaks["Watch"] == 0: | |
| 329 del self.breaks["Watch"] | |
| 330 break | |
| 331 except KeyError: | |
| 332 pass | |
| 333 | |
| 334 def get_watch(self, cond): | |
| 335 """ | |
| 336 Public method to get a watch expression. | |
| 337 | |
| 338 @param cond expression of the watch expression to be cleared (string) | |
| 339 """ | |
| 340 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 341 for i in range(0, len(possibles)): | |
| 342 b = possibles[i] | |
| 343 if b.cond == cond: | |
| 344 return b | |
| 345 | |
| 346 def __do_clearWatch(self, cond): | |
| 347 """ | |
| 348 Private method called to clear a temporary watch expression. | |
| 349 | |
| 350 @param cond expression of the watch expression to be cleared (string) | |
| 351 """ | |
| 352 self.clear_watch(cond) | |
| 353 self._dbgClient.write('%s%s\n' % (ResponseClearWatch, cond)) | |
| 354 | |
| 355 def __effective(self, frame): | |
| 356 """ | |
| 357 Private method to determine, if a watch expression is effective. | |
| 358 | |
| 359 @param frame the current execution frame | |
| 360 @return tuple of watch expression and a flag to indicate, that a temporary | |
| 361 watch expression may be deleted (bdb.Breakpoint, boolean) | |
| 362 """ | |
| 363 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 364 for i in range(0, len(possibles)): | |
| 365 b = possibles[i] | |
| 366 if b.enabled == 0: | |
| 367 continue | |
| 368 if not b.cond: | |
| 369 # watch expression without expression shouldn't occur, just ignore it | |
| 370 continue | |
| 371 try: | |
| 372 val = eval(b.condition, frame.f_globals, frame.f_locals) | |
| 373 if b.special: | |
| 374 if b.special == '??created??': | |
| 375 if b.values[frame][0] == 0: | |
| 376 b.values[frame][0] = 1 | |
| 377 b.values[frame][1] = val | |
| 378 return (b, 1) | |
| 379 else: | |
| 380 continue | |
| 381 b.values[frame][0] = 1 | |
| 382 if b.special == '??changed??': | |
| 383 if b.values[frame][1] != val: | |
| 384 b.values[frame][1] = val | |
| 385 if b.values[frame][2] > 0: | |
| 386 b.values[frame][2] -= 1 | |
| 387 continue | |
| 388 else: | |
| 389 return (b, 1) | |
| 390 else: | |
| 391 continue | |
| 392 continue | |
| 393 if val: | |
| 394 if b.ignore > 0: | |
| 395 b.ignore -= 1 | |
| 396 continue | |
| 397 else: | |
| 398 return (b, 1) | |
| 399 except: | |
| 400 if b.special: | |
| 401 try: | |
| 402 b.values[frame][0] = 0 | |
| 403 except KeyError: | |
| 404 b.values[frame] = [0, None, b.ignore] | |
| 405 continue | |
| 406 return (None, None) | |
| 407 | |
| 408 def break_here(self, frame): | |
| 409 """ | |
| 410 Reimplemented from bdb.py to fix the filename from the frame. | |
| 411 | |
| 412 See fix_frame_filename for more info. | |
| 413 | |
| 414 @param frame the frame object | |
| 415 @return flag indicating the break status (boolean) | |
| 416 """ | |
| 417 filename = self.canonic(self.fix_frame_filename(frame)) | |
| 418 if not self.breaks.has_key(filename) and not self.breaks.has_key("Watch"): | |
| 419 return 0 | |
| 420 | |
| 421 if self.breaks.has_key(filename): | |
| 422 lineno = frame.f_lineno | |
| 423 if lineno in self.breaks[filename]: | |
| 424 # flag says ok to delete temp. bp | |
| 425 (bp, flag) = bdb.effective(filename, lineno, frame) | |
| 426 if bp: | |
| 427 self.currentbp = bp.number | |
| 428 if (flag and bp.temporary): | |
| 429 self.__do_clear(filename, lineno) | |
| 430 return 1 | |
| 431 | |
| 432 if self.breaks.has_key("Watch"): | |
| 433 # flag says ok to delete temp. bp | |
| 434 (bp, flag) = self.__effective(frame) | |
| 435 if bp: | |
| 436 self.currentbp = bp.number | |
| 437 if (flag and bp.temporary): | |
| 438 self.__do_clearWatch(bp.cond) | |
| 439 return 1 | |
| 440 | |
| 441 return 0 | |
| 442 | |
| 443 def break_anywhere(self, frame): | |
| 444 """ | |
| 445 Reimplemented from bdb.py to do some special things. | |
| 446 | |
| 447 These speciality is to fix the filename from the frame | |
| 448 (see fix_frame_filename for more info). | |
| 449 | |
| 450 @param frame the frame object | |
| 451 @return flag indicating the break status (boolean) | |
| 452 """ | |
| 453 return self.breaks.has_key( | |
| 454 self.canonic(self.fix_frame_filename(frame))) or \ | |
| 455 (self.breaks.has_key("Watch") and self.breaks["Watch"]) | |
| 456 | |
| 457 def get_break(self, filename, lineno): | |
| 458 """ | |
| 459 Reimplemented from bdb.py to get the first breakpoint of a particular line. | |
| 460 | |
| 461 Because eric4 supports only one breakpoint per line, this overwritten | |
| 462 method will return this one and only breakpoint. | |
| 463 | |
| 464 @param filename the filename of the bp to retrieve (string) | |
| 465 @param ineno the linenumber of the bp to retrieve (integer) | |
| 466 @return breakpoint or None, if there is no bp | |
| 467 """ | |
| 468 filename = self.canonic(filename) | |
| 469 return self.breaks.has_key(filename) and \ | |
| 470 lineno in self.breaks[filename] and \ | |
| 471 bdb.Breakpoint.bplist[filename, lineno][0] or None | |
| 472 | |
| 473 def __do_clear(self, filename, lineno): | |
| 474 """ | |
| 475 Private method called to clear a temporary breakpoint. | |
| 476 | |
| 477 @param filename name of the file the bp belongs to | |
| 478 @param lineno linenumber of the bp | |
| 479 """ | |
| 480 self.clear_break(filename, lineno) | |
| 481 self._dbgClient.write('%s%s,%d\n' % (ResponseClearBreak, filename, lineno)) | |
| 482 | |
| 483 def getStack(self): | |
| 484 """ | |
| 485 Public method to get the stack. | |
| 486 | |
| 487 @return list of lists with file name (string), line number (integer) | |
| 488 and function name (string) | |
| 489 """ | |
| 490 fr = self.cFrame | |
| 491 stack = [] | |
| 492 while fr is not None: | |
| 493 fname = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 494 fline = fr.f_lineno | |
| 495 ffunc = fr.f_code.co_name | |
| 496 | |
| 497 if ffunc == '?': | |
| 498 ffunc = '' | |
| 499 | |
| 500 stack.append([fname, fline, ffunc]) | |
| 501 | |
| 502 if fr == self._dbgClient.mainFrame: | |
| 503 fr = None | |
| 504 else: | |
| 505 fr = fr.f_back | |
| 506 | |
| 507 return stack | |
| 508 | |
| 509 def user_line(self, frame): | |
| 510 """ | |
| 511 Reimplemented to handle the program about to execute a particular line. | |
| 512 | |
| 513 @param frame the frame object | |
| 514 """ | |
| 515 line = frame.f_lineno | |
| 516 | |
| 517 # We never stop on line 0. | |
| 518 if line == 0: | |
| 519 return | |
| 520 | |
| 521 fn = self._dbgClient.absPath(self.fix_frame_filename(frame)) | |
| 522 | |
| 523 # See if we are skipping at the start of a newly loaded program. | |
| 524 if self._dbgClient.mainFrame is None: | |
| 525 if fn != self._dbgClient.getRunning(): | |
| 526 return | |
| 527 self._dbgClient.mainFrame = frame | |
| 528 | |
| 529 self.currentFrame = frame | |
| 530 | |
| 531 fr = frame | |
| 532 stack = [] | |
| 533 while fr is not None: | |
| 534 # Reset the trace function so we can be sure | |
| 535 # to trace all functions up the stack... This gets around | |
| 536 # problems where an exception/breakpoint has occurred | |
| 537 # but we had disabled tracing along the way via a None | |
| 538 # return from dispatch_call | |
| 539 fr.f_trace = self.trace_dispatch | |
| 540 fname = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 541 fline = fr.f_lineno | |
| 542 ffunc = fr.f_code.co_name | |
| 543 | |
| 544 if ffunc == '?': | |
| 545 ffunc = '' | |
| 546 | |
| 547 stack.append([fname, fline, ffunc]) | |
| 548 | |
| 549 if fr == self._dbgClient.mainFrame: | |
| 550 fr = None | |
| 551 else: | |
| 552 fr = fr.f_back | |
| 553 | |
| 554 self.__isBroken = True | |
| 555 | |
| 556 self._dbgClient.write('%s%s\n' % (ResponseLine, unicode(stack))) | |
| 557 self._dbgClient.eventLoop() | |
| 558 | |
| 559 def user_exception(self,frame,(exctype,excval,exctb),unhandled=0): | |
| 560 """ | |
| 561 Reimplemented to report an exception to the debug server. | |
| 562 | |
| 563 @param frame the frame object | |
| 564 @param exctype the type of the exception | |
| 565 @param excval data about the exception | |
| 566 @param exctb traceback for the exception | |
| 567 @param unhandled flag indicating an uncaught exception | |
| 568 """ | |
| 569 if exctype in [SystemExit, bdb.BdbQuit]: | |
| 570 atexit._run_exitfuncs() | |
| 571 self._dbgClient.progTerminated(excval) | |
| 572 return | |
| 573 | |
| 574 elif exctype in [SyntaxError, IndentationError]: | |
| 575 try: | |
| 576 message, (filename, linenr, charnr, text) = excval | |
| 577 except ValueError: | |
| 578 exclist = [] | |
| 579 else: | |
| 580 exclist = [message, [filename, linenr, charnr]] | |
| 581 | |
| 582 self._dbgClient.write("%s%s\n" % (ResponseSyntax, unicode(exclist))) | |
| 583 | |
| 584 else: | |
| 585 if type(exctype) in [types.ClassType, # Python up to 2.4 | |
| 586 types.TypeType]: # Python 2.5+ | |
| 587 exctype = exctype.__name__ | |
| 588 | |
| 589 if excval is None: | |
| 590 excval = '' | |
| 591 | |
| 592 if unhandled: | |
| 593 exctypetxt = "unhandled %s" % unicode(exctype) | |
| 594 else: | |
| 595 exctypetxt = unicode(exctype) | |
| 596 try: | |
| 597 exclist = [exctypetxt, | |
| 598 unicode(excval).encode(self._dbgClient.getCoding())] | |
| 599 except TypeError: | |
| 600 exclist = [exctypetxt, str(excval)] | |
| 601 | |
| 602 if exctb: | |
| 603 frlist = self.__extract_stack(exctb) | |
| 604 frlist.reverse() | |
| 605 | |
| 606 self.currentFrame = frlist[0] | |
| 607 | |
| 608 for fr in frlist: | |
| 609 filename = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 610 linenr = fr.f_lineno | |
| 611 | |
| 612 if os.path.basename(filename).startswith("DebugClient") or \ | |
| 613 os.path.basename(filename) == "bdb.py": | |
| 614 break | |
| 615 | |
| 616 exclist.append([filename, linenr]) | |
| 617 | |
| 618 self._dbgClient.write("%s%s\n" % (ResponseException, unicode(exclist))) | |
| 619 | |
| 620 if exctb is None: | |
| 621 return | |
| 622 | |
| 623 self._dbgClient.eventLoop() | |
| 624 | |
| 625 def __extract_stack(self, exctb): | |
| 626 """ | |
| 627 Private member to return a list of stack frames. | |
| 628 | |
| 629 @param exctb exception traceback | |
| 630 @return list of stack frames | |
| 631 """ | |
| 632 tb = exctb | |
| 633 stack = [] | |
| 634 while tb is not None: | |
| 635 stack.append(tb.tb_frame) | |
| 636 tb = tb.tb_next | |
| 637 tb = None | |
| 638 return stack | |
| 639 | |
| 640 def user_return(self,frame,retval): | |
| 641 """ | |
| 642 Reimplemented to report program termination to the debug server. | |
| 643 | |
| 644 @param frame the frame object | |
| 645 @param retval the return value of the program | |
| 646 """ | |
| 647 # The program has finished if we have just left the first frame. | |
| 648 if frame == self._dbgClient.mainFrame and \ | |
| 649 self._mainThread: | |
| 650 atexit._run_exitfuncs() | |
| 651 self._dbgClient.progTerminated(retval) | |
| 652 elif frame is not self.stepFrame: | |
| 653 self.stepFrame = None | |
| 654 self.user_line(frame) | |
| 655 | |
| 656 def stop_here(self,frame): | |
| 657 """ | |
| 658 Reimplemented to filter out debugger files. | |
| 659 | |
| 660 Tracing is turned off for files that are part of the | |
| 661 debugger that are called from the application being debugged. | |
| 662 | |
| 663 @param frame the frame object | |
| 664 @return flag indicating whether the debugger should stop here | |
| 665 """ | |
| 666 if self.__skip_it(frame): | |
| 667 return 0 | |
| 668 return bdb.Bdb.stop_here(self,frame) | |
| 669 | |
| 670 def __skip_it(self, frame): | |
| 671 """ | |
| 672 Private method to filter out debugger files. | |
| 673 | |
| 674 Tracing is turned off for files that are part of the | |
| 675 debugger that are called from the application being debugged. | |
| 676 | |
| 677 @param frame the frame object | |
| 678 @return flag indicating whether the debugger should skip this frame | |
| 679 """ | |
| 680 fn = self.fix_frame_filename(frame) | |
| 681 | |
| 682 # Eliminate things like <string> and <stdin>. | |
| 683 if fn[0] == '<': | |
| 684 return 1 | |
| 685 | |
| 686 #XXX - think of a better way to do this. It's only a convience for | |
| 687 #debugging the debugger - when the debugger code is in the current | |
| 688 #directory. | |
| 689 if os.path.basename(fn) in [\ | |
| 690 'AsyncFile.py', 'AsyncIO.py', | |
| 691 'DebugConfig.py', 'DCTestResult.py', | |
| 692 'DebugBase.py', 'DebugClientBase.py', | |
| 693 'DebugClientCapabilities.py', 'DebugClient.py', | |
| 694 'DebugClientThreads.py', 'DebugProtocol.py', | |
| 695 'DebugThread.py', 'FlexCompleter.py', | |
| 696 'PyProfile.py'] or \ | |
| 697 os.path.dirname(fn).endswith("coverage"): | |
| 698 return 1 | |
| 699 | |
| 700 if self._dbgClient.shouldSkip(fn): | |
| 701 return 1 | |
| 702 | |
| 703 return 0 | |
| 704 | |
| 705 def isBroken(self): | |
| 706 """ | |
| 707 Public method to return the broken state of the debugger. | |
| 708 | |
| 709 @return flag indicating the broken state (boolean) | |
| 710 """ | |
| 711 return self.__isBroken | |
| 712 | |
| 713 def getEvent(self): | |
| 714 """ | |
| 715 Public method to return the last debugger event. | |
| 716 | |
| 717 @return last debugger event (string) | |
| 718 """ | |
| 719 return self.__event |
