Mercurial Repositories > eric / file comparison
comparison: DebugClients/Python/DebugBase.py
DebugClients/Python/DebugBase.py
- changeset 5141
- bc64243b7672
- parent 5126
- d28b92dabc2b
- parent 5140
- 01484c0afbc6
- child 5144
- 1ab536d25072
equal
deleted
inserted
replaced
| 5126:d28b92dabc2b | 5141:bc64243b7672 |
|---|---|
| 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 | |
| 18 from DebugProtocol import ResponseClearWatch, ResponseClearBreak, \ | |
| 19 ResponseLine, ResponseSyntax, ResponseException, CallTrace | |
| 20 | |
| 21 gRecursionLimit = 64 | |
| 22 | |
| 23 | |
| 24 def printerr(s): | |
| 25 """ | |
| 26 Module function used for debugging the debug client. | |
| 27 | |
| 28 @param s data to be printed | |
| 29 """ | |
| 30 sys.__stderr__.write('%s\n' % unicode(s)) | |
| 31 sys.__stderr__.flush() | |
| 32 | |
| 33 | |
| 34 def setRecursionLimit(limit): | |
| 35 """ | |
| 36 Module function to set the recursion limit. | |
| 37 | |
| 38 @param limit recursion limit (integer) | |
| 39 """ | |
| 40 global gRecursionLimit | |
| 41 gRecursionLimit = limit | |
| 42 | |
| 43 | |
| 44 class DebugBase(bdb.Bdb): | |
| 45 """ | |
| 46 Class implementing base class of the debugger. | |
| 47 | |
| 48 Provides simple wrapper methods around bdb for the 'owning' client to | |
| 49 call to step etc. | |
| 50 """ | |
| 51 def __init__(self, dbgClient): | |
| 52 """ | |
| 53 Constructor | |
| 54 | |
| 55 @param dbgClient the owning client | |
| 56 """ | |
| 57 bdb.Bdb.__init__(self) | |
| 58 | |
| 59 self._dbgClient = dbgClient | |
| 60 self._mainThread = 1 | |
| 61 | |
| 62 self.breaks = self._dbgClient.breakpoints | |
| 63 | |
| 64 self.__event = "" | |
| 65 self.__isBroken = "" | |
| 66 self.cFrame = None | |
| 67 | |
| 68 # current frame we are at | |
| 69 self.currentFrame = None | |
| 70 | |
| 71 # frame that we are stepping in, can be different than currentFrame | |
| 72 self.stepFrame = None | |
| 73 | |
| 74 # provide a hook to perform a hard breakpoint | |
| 75 # Use it like this: | |
| 76 # if hasattr(sys, 'breakpoint): sys.breakpoint() | |
| 77 sys.breakpoint = self.set_trace | |
| 78 | |
| 79 # initialize parent | |
| 80 bdb.Bdb.reset(self) | |
| 81 | |
| 82 self.__recursionDepth = -1 | |
| 83 self.setRecursionDepth(inspect.currentframe()) | |
| 84 | |
| 85 def getCurrentFrame(self): | |
| 86 """ | |
| 87 Public method to return the current frame. | |
| 88 | |
| 89 @return the current frame | |
| 90 """ | |
| 91 return self.currentFrame | |
| 92 | |
| 93 def getFrameLocals(self, frmnr=0): | |
| 94 """ | |
| 95 Public method to return the locals dictionary of the current frame | |
| 96 or a frame below. | |
| 97 | |
| 98 @keyparam frmnr distance of frame to get locals dictionary of. 0 is | |
| 99 the current frame (int) | |
| 100 @return locals dictionary of the frame | |
| 101 """ | |
| 102 f = self.currentFrame | |
| 103 while f is not None and frmnr > 0: | |
| 104 f = f.f_back | |
| 105 frmnr -= 1 | |
| 106 return f.f_locals | |
| 107 | |
| 108 def storeFrameLocals(self, frmnr=0): | |
| 109 """ | |
| 110 Public method to store the locals into the frame, so an access to | |
| 111 frame.f_locals returns the last data. | |
| 112 | |
| 113 @keyparam frmnr distance of frame to store locals dictionary to. 0 is | |
| 114 the current frame (int) | |
| 115 """ | |
| 116 cf = self.currentFrame | |
| 117 while cf is not None and frmnr > 0: | |
| 118 cf = cf.f_back | |
| 119 frmnr -= 1 | |
| 120 ctypes.pythonapi.PyFrame_LocalsToFast( | |
| 121 ctypes.py_object(cf), | |
| 122 ctypes.c_int(0)) | |
| 123 | |
| 124 def step(self, traceMode): | |
| 125 """ | |
| 126 Public method to perform a step operation in this thread. | |
| 127 | |
| 128 @param traceMode If it is non-zero, then the step is a step into, | |
| 129 otherwise it is a step over. | |
| 130 """ | |
| 131 self.stepFrame = self.currentFrame | |
| 132 | |
| 133 if traceMode: | |
| 134 self.currentFrame = None | |
| 135 self.set_step() | |
| 136 else: | |
| 137 self.set_next(self.currentFrame) | |
| 138 | |
| 139 def stepOut(self): | |
| 140 """ | |
| 141 Public method to perform a step out of the current call. | |
| 142 """ | |
| 143 self.stepFrame = self.currentFrame | |
| 144 self.set_return(self.currentFrame) | |
| 145 | |
| 146 def go(self, special): | |
| 147 """ | |
| 148 Public method to resume the thread. | |
| 149 | |
| 150 It resumes the thread stopping only at breakpoints or exceptions. | |
| 151 | |
| 152 @param special flag indicating a special continue operation | |
| 153 """ | |
| 154 self.currentFrame = None | |
| 155 self.set_continue(special) | |
| 156 | |
| 157 def setRecursionDepth(self, frame): | |
| 158 """ | |
| 159 Public method to determine the current recursion depth. | |
| 160 | |
| 161 @param frame The current stack frame. | |
| 162 """ | |
| 163 self.__recursionDepth = 0 | |
| 164 while frame is not None: | |
| 165 self.__recursionDepth += 1 | |
| 166 frame = frame.f_back | |
| 167 | |
| 168 def profile(self, frame, event, arg): | |
| 169 """ | |
| 170 Public method used to trace some stuff independent of the debugger | |
| 171 trace function. | |
| 172 | |
| 173 @param frame current stack frame. | |
| 174 @param event trace event (string) | |
| 175 @param arg arguments | |
| 176 @exception RuntimeError raised to indicate too many recursions | |
| 177 """ | |
| 178 if event == 'return': | |
| 179 self.cFrame = frame.f_back | |
| 180 self.__recursionDepth -= 1 | |
| 181 self.__sendCallTrace(event, frame, self.cFrame) | |
| 182 elif event == 'call': | |
| 183 self.__sendCallTrace(event, self.cFrame, frame) | |
| 184 self.cFrame = frame | |
| 185 self.__recursionDepth += 1 | |
| 186 if self.__recursionDepth > gRecursionLimit: | |
| 187 raise RuntimeError( | |
| 188 'maximum recursion depth exceeded\n' | |
| 189 '(offending frame is two down the stack)') | |
| 190 | |
| 191 def __sendCallTrace(self, event, fromFrame, toFrame): | |
| 192 """ | |
| 193 Private method to send a call/return trace. | |
| 194 | |
| 195 @param event trace event (string) | |
| 196 @param fromFrame originating frame (frame) | |
| 197 @param toFrame destination frame (frame) | |
| 198 """ | |
| 199 if self._dbgClient.callTraceEnabled: | |
| 200 if not self.__skip_it(fromFrame) and not self.__skip_it(toFrame): | |
| 201 if event in ["call", "return"]: | |
| 202 fr = fromFrame | |
| 203 fromStr = "%s:%s:%s" % ( | |
| 204 self._dbgClient.absPath(self.fix_frame_filename(fr)), | |
| 205 fr.f_lineno, | |
| 206 fr.f_code.co_name) | |
| 207 fr = toFrame | |
| 208 toStr = "%s:%s:%s" % ( | |
| 209 self._dbgClient.absPath(self.fix_frame_filename(fr)), | |
| 210 fr.f_lineno, | |
| 211 fr.f_code.co_name) | |
| 212 self._dbgClient.write("%s%s@@%s@@%s\n" % ( | |
| 213 CallTrace, event[0], fromStr, toStr)) | |
| 214 | |
| 215 def trace_dispatch(self, frame, event, arg): | |
| 216 """ | |
| 217 Public method reimplemented from bdb.py to do some special things. | |
| 218 | |
| 219 This specialty is to check the connection to the debug server | |
| 220 for new events (i.e. new breakpoints) while we are going through | |
| 221 the code. | |
| 222 | |
| 223 @param frame The current stack frame. | |
| 224 @param event The trace event (string) | |
| 225 @param arg The arguments | |
| 226 @return local trace function | |
| 227 """ | |
| 228 if self.quitting: | |
| 229 return # None | |
| 230 | |
| 231 # give the client a chance to push through new break points. | |
| 232 self._dbgClient.eventPoll() | |
| 233 | |
| 234 self.__event == event | |
| 235 self.__isBroken = False | |
| 236 | |
| 237 if event == 'line': | |
| 238 return self.dispatch_line(frame) | |
| 239 if event == 'call': | |
| 240 return self.dispatch_call(frame, arg) | |
| 241 if event == 'return': | |
| 242 return self.dispatch_return(frame, arg) | |
| 243 if event == 'exception': | |
| 244 return self.dispatch_exception(frame, arg) | |
| 245 if event == 'c_call': | |
| 246 return self.trace_dispatch | |
| 247 if event == 'c_exception': | |
| 248 return self.trace_dispatch | |
| 249 if event == 'c_return': | |
| 250 return self.trace_dispatch | |
| 251 print 'DebugBase.trace_dispatch: unknown debugging event:', repr(event) # __IGNORE_WARNING__ | |
| 252 return self.trace_dispatch | |
| 253 | |
| 254 def dispatch_line(self, frame): | |
| 255 """ | |
| 256 Public method reimplemented from bdb.py to do some special things. | |
| 257 | |
| 258 This speciality is to check the connection to the debug server | |
| 259 for new events (i.e. new breakpoints) while we are going through | |
| 260 the code. | |
| 261 | |
| 262 @param frame The current stack frame. | |
| 263 @return local trace function | |
| 264 @exception bdb.BdbQuit raised to indicate the end of the debug session | |
| 265 """ | |
| 266 if self.stop_here(frame) or self.break_here(frame): | |
| 267 self.user_line(frame) | |
| 268 if self.quitting: | |
| 269 raise bdb.BdbQuit | |
| 270 return self.trace_dispatch | |
| 271 | |
| 272 def dispatch_return(self, frame, arg): | |
| 273 """ | |
| 274 Public method reimplemented from bdb.py to handle passive mode cleanly. | |
| 275 | |
| 276 @param frame The current stack frame. | |
| 277 @param arg The arguments | |
| 278 @return local trace function | |
| 279 @exception bdb.BdbQuit raised to indicate the end of the debug session | |
| 280 """ | |
| 281 if self.stop_here(frame) or frame == self.returnframe: | |
| 282 self.user_return(frame, arg) | |
| 283 if self.quitting and not self._dbgClient.passive: | |
| 284 raise bdb.BdbQuit | |
| 285 return self.trace_dispatch | |
| 286 | |
| 287 def dispatch_exception(self, frame, arg): | |
| 288 """ | |
| 289 Public method reimplemented from bdb.py to always call user_exception. | |
| 290 | |
| 291 @param frame The current stack frame. | |
| 292 @param arg The arguments | |
| 293 @return local trace function | |
| 294 @exception bdb.BdbQuit raised to indicate the end of the debug session | |
| 295 """ | |
| 296 if not self.__skip_it(frame): | |
| 297 self.user_exception(frame, arg) | |
| 298 if self.quitting: | |
| 299 raise bdb.BdbQuit | |
| 300 return self.trace_dispatch | |
| 301 | |
| 302 def set_trace(self, frame=None): | |
| 303 """ | |
| 304 Public method reimplemented from bdb.py to do some special setup. | |
| 305 | |
| 306 @param frame frame to start debugging from | |
| 307 """ | |
| 308 bdb.Bdb.set_trace(self, frame) | |
| 309 sys.setprofile(self.profile) | |
| 310 | |
| 311 def set_continue(self, special): | |
| 312 """ | |
| 313 Public method reimplemented from bdb.py to always get informed of | |
| 314 exceptions. | |
| 315 | |
| 316 @param special flag indicating a special continue operation | |
| 317 """ | |
| 318 # Modified version of the one found in bdb.py | |
| 319 # Here we only set a new stop frame if it is a normal continue. | |
| 320 if not special: | |
| 321 self.stopframe = self.botframe | |
| 322 self.returnframe = None | |
| 323 self.quitting = 0 | |
| 324 | |
| 325 def set_quit(self): | |
| 326 """ | |
| 327 Public method to quit. | |
| 328 | |
| 329 It wraps call to bdb to clear the current frame properly. | |
| 330 """ | |
| 331 self.currentFrame = None | |
| 332 sys.setprofile(None) | |
| 333 bdb.Bdb.set_quit(self) | |
| 334 | |
| 335 def fix_frame_filename(self, frame): | |
| 336 """ | |
| 337 Public method used to fixup the filename for a given frame. | |
| 338 | |
| 339 The logic employed here is that if a module was loaded | |
| 340 from a .pyc file, then the correct .py to operate with | |
| 341 should be in the same path as the .pyc. The reason this | |
| 342 logic is needed is that when a .pyc file is generated, the | |
| 343 filename embedded and thus what is readable in the code object | |
| 344 of the frame object is the fully qualified filepath when the | |
| 345 pyc is generated. If files are moved from machine to machine | |
| 346 this can break debugging as the .pyc will refer to the .py | |
| 347 on the original machine. Another case might be sharing | |
| 348 code over a network... This logic deals with that. | |
| 349 | |
| 350 @param frame the frame object | |
| 351 @return fixed up file name (string) | |
| 352 """ | |
| 353 # get module name from __file__ | |
| 354 if '__file__' in frame.f_globals and \ | |
| 355 frame.f_globals['__file__'] and \ | |
| 356 frame.f_globals['__file__'] == frame.f_code.co_filename: | |
| 357 root, ext = os.path.splitext(frame.f_globals['__file__']) | |
| 358 if ext == '.pyc' or ext == '.py' or ext == '.pyo': | |
| 359 fixedName = root + '.py' | |
| 360 if os.path.exists(fixedName): | |
| 361 return fixedName | |
| 362 | |
| 363 return frame.f_code.co_filename | |
| 364 | |
| 365 def set_watch(self, cond, temporary=0): | |
| 366 """ | |
| 367 Public method to set a watch expression. | |
| 368 | |
| 369 @param cond expression of the watch expression (string) | |
| 370 @param temporary flag indicating a temporary watch expression (boolean) | |
| 371 """ | |
| 372 bp = bdb.Breakpoint("Watch", 0, temporary, cond) | |
| 373 if cond.endswith('??created??') or cond.endswith('??changed??'): | |
| 374 bp.condition, bp.special = cond.split() | |
| 375 else: | |
| 376 bp.condition = cond | |
| 377 bp.special = "" | |
| 378 bp.values = {} | |
| 379 if "Watch" not in self.breaks: | |
| 380 self.breaks["Watch"] = 1 | |
| 381 else: | |
| 382 self.breaks["Watch"] += 1 | |
| 383 | |
| 384 def clear_watch(self, cond): | |
| 385 """ | |
| 386 Public method to clear a watch expression. | |
| 387 | |
| 388 @param cond expression of the watch expression to be cleared (string) | |
| 389 """ | |
| 390 try: | |
| 391 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 392 for i in range(0, len(possibles)): | |
| 393 b = possibles[i] | |
| 394 if b.cond == cond: | |
| 395 b.deleteMe() | |
| 396 self.breaks["Watch"] -= 1 | |
| 397 if self.breaks["Watch"] == 0: | |
| 398 del self.breaks["Watch"] | |
| 399 break | |
| 400 except KeyError: | |
| 401 pass | |
| 402 | |
| 403 def get_watch(self, cond): | |
| 404 """ | |
| 405 Public method to get a watch expression. | |
| 406 | |
| 407 @param cond expression of the watch expression to be cleared (string) | |
| 408 @return reference to the watch point | |
| 409 """ | |
| 410 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 411 for i in range(0, len(possibles)): | |
| 412 b = possibles[i] | |
| 413 if b.cond == cond: | |
| 414 return b | |
| 415 | |
| 416 def __do_clearWatch(self, cond): | |
| 417 """ | |
| 418 Private method called to clear a temporary watch expression. | |
| 419 | |
| 420 @param cond expression of the watch expression to be cleared (string) | |
| 421 """ | |
| 422 self.clear_watch(cond) | |
| 423 self._dbgClient.write('%s%s\n' % (ResponseClearWatch, cond)) | |
| 424 | |
| 425 def __effective(self, frame): | |
| 426 """ | |
| 427 Private method to determine, if a watch expression is effective. | |
| 428 | |
| 429 @param frame the current execution frame | |
| 430 @return tuple of watch expression and a flag to indicate, that a | |
| 431 temporary watch expression may be deleted (bdb.Breakpoint, boolean) | |
| 432 """ | |
| 433 possibles = bdb.Breakpoint.bplist["Watch", 0] | |
| 434 for i in range(0, len(possibles)): | |
| 435 b = possibles[i] | |
| 436 if b.enabled == 0: | |
| 437 continue | |
| 438 if not b.cond: | |
| 439 # watch expression without expression shouldn't occur, | |
| 440 # just ignore it | |
| 441 continue | |
| 442 try: | |
| 443 val = eval(b.condition, frame.f_globals, frame.f_locals) | |
| 444 if b.special: | |
| 445 if b.special == '??created??': | |
| 446 if b.values[frame][0] == 0: | |
| 447 b.values[frame][0] = 1 | |
| 448 b.values[frame][1] = val | |
| 449 return (b, 1) | |
| 450 else: | |
| 451 continue | |
| 452 b.values[frame][0] = 1 | |
| 453 if b.special == '??changed??': | |
| 454 if b.values[frame][1] != val: | |
| 455 b.values[frame][1] = val | |
| 456 if b.values[frame][2] > 0: | |
| 457 b.values[frame][2] -= 1 | |
| 458 continue | |
| 459 else: | |
| 460 return (b, 1) | |
| 461 else: | |
| 462 continue | |
| 463 continue | |
| 464 if val: | |
| 465 if b.ignore > 0: | |
| 466 b.ignore -= 1 | |
| 467 continue | |
| 468 else: | |
| 469 return (b, 1) | |
| 470 except Exception: | |
| 471 if b.special: | |
| 472 try: | |
| 473 b.values[frame][0] = 0 | |
| 474 except KeyError: | |
| 475 b.values[frame] = [0, None, b.ignore] | |
| 476 continue | |
| 477 return (None, None) | |
| 478 | |
| 479 def break_here(self, frame): | |
| 480 """ | |
| 481 Public method reimplemented from bdb.py to fix the filename from the | |
| 482 frame. | |
| 483 | |
| 484 See fix_frame_filename for more info. | |
| 485 | |
| 486 @param frame the frame object | |
| 487 @return flag indicating the break status (boolean) | |
| 488 """ | |
| 489 filename = self.canonic(self.fix_frame_filename(frame)) | |
| 490 if filename not in self.breaks and "Watch" not in self.breaks: | |
| 491 return 0 | |
| 492 | |
| 493 if filename in self.breaks: | |
| 494 lineno = frame.f_lineno | |
| 495 if lineno in self.breaks[filename]: | |
| 496 # flag says ok to delete temp. bp | |
| 497 (bp, flag) = bdb.effective(filename, lineno, frame) | |
| 498 if bp: | |
| 499 self.currentbp = bp.number | |
| 500 if (flag and bp.temporary): | |
| 501 self.__do_clear(filename, lineno) | |
| 502 return 1 | |
| 503 | |
| 504 if "Watch" in self.breaks: | |
| 505 # flag says ok to delete temp. bp | |
| 506 (bp, flag) = self.__effective(frame) | |
| 507 if bp: | |
| 508 self.currentbp = bp.number | |
| 509 if (flag and bp.temporary): | |
| 510 self.__do_clearWatch(bp.cond) | |
| 511 return 1 | |
| 512 | |
| 513 return 0 | |
| 514 | |
| 515 def break_anywhere(self, frame): | |
| 516 """ | |
| 517 Public method reimplemented from bdb.py to do some special things. | |
| 518 | |
| 519 These speciality is to fix the filename from the frame | |
| 520 (see fix_frame_filename for more info). | |
| 521 | |
| 522 @param frame the frame object | |
| 523 @return flag indicating the break status (boolean) | |
| 524 """ | |
| 525 return \ | |
| 526 self.canonic(self.fix_frame_filename(frame)) in self.breaks or \ | |
| 527 ("Watch" in self.breaks and self.breaks["Watch"]) | |
| 528 | |
| 529 def get_break(self, filename, lineno): | |
| 530 """ | |
| 531 Public method reimplemented from bdb.py to get the first breakpoint of | |
| 532 a particular line. | |
| 533 | |
| 534 Because eric6 supports only one breakpoint per line, this overwritten | |
| 535 method will return this one and only breakpoint. | |
| 536 | |
| 537 @param filename filename of the bp to retrieve (string) | |
| 538 @param lineno linenumber of the bp to retrieve (integer) | |
| 539 @return breakpoint or None, if there is no bp | |
| 540 """ | |
| 541 filename = self.canonic(filename) | |
| 542 return filename in self.breaks and \ | |
| 543 lineno in self.breaks[filename] and \ | |
| 544 bdb.Breakpoint.bplist[filename, lineno][0] or None | |
| 545 | |
| 546 def __do_clear(self, filename, lineno): | |
| 547 """ | |
| 548 Private method called to clear a temporary breakpoint. | |
| 549 | |
| 550 @param filename name of the file the bp belongs to | |
| 551 @param lineno linenumber of the bp | |
| 552 """ | |
| 553 self.clear_break(filename, lineno) | |
| 554 self._dbgClient.write('%s%s,%d\n' % (ResponseClearBreak, filename, | |
| 555 lineno)) | |
| 556 | |
| 557 def getStack(self): | |
| 558 """ | |
| 559 Public method to get the stack. | |
| 560 | |
| 561 @return list of lists with file name (string), line number (integer) | |
| 562 and function name (string) | |
| 563 """ | |
| 564 fr = self.cFrame | |
| 565 stack = [] | |
| 566 while fr is not None: | |
| 567 fname = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 568 if not fname.startswith("<"): | |
| 569 fline = fr.f_lineno | |
| 570 ffunc = fr.f_code.co_name | |
| 571 | |
| 572 if ffunc == '?': | |
| 573 ffunc = '' | |
| 574 | |
| 575 if ffunc and not ffunc.startswith("<"): | |
| 576 argInfo = inspect.getargvalues(fr) | |
| 577 try: | |
| 578 fargs = inspect.formatargvalues(argInfo[0], argInfo[1], | |
| 579 argInfo[2], argInfo[3]) | |
| 580 except Exception: | |
| 581 fargs = "" | |
| 582 else: | |
| 583 fargs = "" | |
| 584 | |
| 585 stack.append([fname, fline, ffunc, fargs]) | |
| 586 | |
| 587 if fr == self._dbgClient.mainFrame: | |
| 588 fr = None | |
| 589 else: | |
| 590 fr = fr.f_back | |
| 591 | |
| 592 return stack | |
| 593 | |
| 594 def user_line(self, frame): | |
| 595 """ | |
| 596 Public method reimplemented to handle the program about to execute a | |
| 597 particular line. | |
| 598 | |
| 599 @param frame the frame object | |
| 600 """ | |
| 601 line = frame.f_lineno | |
| 602 | |
| 603 # We never stop on line 0. | |
| 604 if line == 0: | |
| 605 return | |
| 606 | |
| 607 fn = self._dbgClient.absPath(self.fix_frame_filename(frame)) | |
| 608 | |
| 609 # See if we are skipping at the start of a newly loaded program. | |
| 610 if self._dbgClient.mainFrame is None: | |
| 611 if fn != self._dbgClient.getRunning(): | |
| 612 return | |
| 613 fr = frame | |
| 614 while (fr is not None and | |
| 615 fr.f_code != self._dbgClient.handleLine.func_code): | |
| 616 self._dbgClient.mainFrame = fr | |
| 617 fr = fr.f_back | |
| 618 | |
| 619 self.currentFrame = frame | |
| 620 | |
| 621 fr = frame | |
| 622 stack = [] | |
| 623 while fr is not None: | |
| 624 # Reset the trace function so we can be sure | |
| 625 # to trace all functions up the stack... This gets around | |
| 626 # problems where an exception/breakpoint has occurred | |
| 627 # but we had disabled tracing along the way via a None | |
| 628 # return from dispatch_call | |
| 629 fr.f_trace = self.trace_dispatch | |
| 630 fname = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 631 if not fname.startswith("<"): | |
| 632 fline = fr.f_lineno | |
| 633 ffunc = fr.f_code.co_name | |
| 634 | |
| 635 if ffunc == '?': | |
| 636 ffunc = '' | |
| 637 | |
| 638 if ffunc and not ffunc.startswith("<"): | |
| 639 argInfo = inspect.getargvalues(fr) | |
| 640 try: | |
| 641 fargs = inspect.formatargvalues(argInfo[0], argInfo[1], | |
| 642 argInfo[2], argInfo[3]) | |
| 643 except Exception: | |
| 644 fargs = "" | |
| 645 else: | |
| 646 fargs = "" | |
| 647 | |
| 648 stack.append([fname, fline, ffunc, fargs]) | |
| 649 | |
| 650 if fr == self._dbgClient.mainFrame: | |
| 651 fr = None | |
| 652 else: | |
| 653 fr = fr.f_back | |
| 654 | |
| 655 self.__isBroken = True | |
| 656 | |
| 657 self._dbgClient.write('%s%s\n' % (ResponseLine, unicode(stack))) | |
| 658 self._dbgClient.eventLoop() | |
| 659 | |
| 660 def user_exception(self, frame, (exctype, excval, exctb), unhandled=0): | |
| 661 """ | |
| 662 Public method reimplemented to report an exception to the debug server. | |
| 663 | |
| 664 @param frame the frame object | |
| 665 @param exctype the type of the exception | |
| 666 @param excval data about the exception | |
| 667 @param exctb traceback for the exception | |
| 668 @param unhandled flag indicating an uncaught exception | |
| 669 """ | |
| 670 if exctype in [GeneratorExit, StopIteration]: | |
| 671 # ignore these | |
| 672 return | |
| 673 | |
| 674 if exctype in [SystemExit, bdb.BdbQuit]: | |
| 675 atexit._run_exitfuncs() | |
| 676 if excval is None: | |
| 677 excval = 0 | |
| 678 elif isinstance(excval, (unicode, str)): | |
| 679 self._dbgClient.write(excval) | |
| 680 excval = 1 | |
| 681 if isinstance(excval, int): | |
| 682 self._dbgClient.progTerminated(excval) | |
| 683 else: | |
| 684 self._dbgClient.progTerminated(excval.code) | |
| 685 return | |
| 686 | |
| 687 if exctype in [SyntaxError, IndentationError]: | |
| 688 try: | |
| 689 message, (filename, linenr, charnr, text) = excval | |
| 690 except ValueError: | |
| 691 exclist = [] | |
| 692 realSyntaxError = True | |
| 693 else: | |
| 694 exclist = [message, [filename, linenr, charnr]] | |
| 695 realSyntaxError = os.path.exists(filename) | |
| 696 | |
| 697 if realSyntaxError: | |
| 698 self._dbgClient.write("%s%s\n" % (ResponseSyntax, | |
| 699 unicode(exclist))) | |
| 700 self._dbgClient.eventLoop() | |
| 701 return | |
| 702 | |
| 703 if type(exctype) in [types.ClassType, # Python up to 2.4 | |
| 704 types.TypeType]: # Python 2.5+ | |
| 705 exctype = exctype.__name__ | |
| 706 | |
| 707 if excval is None: | |
| 708 excval = '' | |
| 709 | |
| 710 if unhandled: | |
| 711 exctypetxt = "unhandled %s" % unicode(exctype) | |
| 712 else: | |
| 713 exctypetxt = unicode(exctype) | |
| 714 try: | |
| 715 exclist = [exctypetxt, | |
| 716 unicode(excval).encode(self._dbgClient.getCoding())] | |
| 717 except TypeError: | |
| 718 exclist = [exctypetxt, str(excval)] | |
| 719 | |
| 720 if exctb: | |
| 721 frlist = self.__extract_stack(exctb) | |
| 722 frlist.reverse() | |
| 723 | |
| 724 self.currentFrame = frlist[0] | |
| 725 | |
| 726 for fr in frlist: | |
| 727 filename = self._dbgClient.absPath(self.fix_frame_filename(fr)) | |
| 728 | |
| 729 if os.path.basename(filename).startswith("DebugClient") or \ | |
| 730 os.path.basename(filename) == "bdb.py": | |
| 731 break | |
| 732 | |
| 733 linenr = fr.f_lineno | |
| 734 ffunc = fr.f_code.co_name | |
| 735 | |
| 736 if ffunc == '?': | |
| 737 ffunc = '' | |
| 738 | |
| 739 if ffunc and not ffunc.startswith("<"): | |
| 740 argInfo = inspect.getargvalues(fr) | |
| 741 try: | |
| 742 fargs = inspect.formatargvalues(argInfo[0], argInfo[1], | |
| 743 argInfo[2], argInfo[3]) | |
| 744 except Exception: | |
| 745 fargs = "" | |
| 746 else: | |
| 747 fargs = "" | |
| 748 | |
| 749 exclist.append([filename, linenr, ffunc, fargs]) | |
| 750 | |
| 751 self._dbgClient.write("%s%s\n" % (ResponseException, unicode(exclist))) | |
| 752 | |
| 753 if exctb is None: | |
| 754 return | |
| 755 | |
| 756 self._dbgClient.eventLoop() | |
| 757 | |
| 758 def __extract_stack(self, exctb): | |
| 759 """ | |
| 760 Private member to return a list of stack frames. | |
| 761 | |
| 762 @param exctb exception traceback | |
| 763 @return list of stack frames | |
| 764 """ | |
| 765 tb = exctb | |
| 766 stack = [] | |
| 767 while tb is not None: | |
| 768 stack.append(tb.tb_frame) | |
| 769 tb = tb.tb_next | |
| 770 tb = None | |
| 771 return stack | |
| 772 | |
| 773 def user_return(self, frame, retval): | |
| 774 """ | |
| 775 Public method reimplemented to report program termination to the | |
| 776 debug server. | |
| 777 | |
| 778 @param frame the frame object | |
| 779 @param retval the return value of the program | |
| 780 """ | |
| 781 # The program has finished if we have just left the first frame. | |
| 782 if frame == self._dbgClient.mainFrame and \ | |
| 783 self._mainThread: | |
| 784 atexit._run_exitfuncs() | |
| 785 self._dbgClient.progTerminated(retval) | |
| 786 elif frame is not self.stepFrame: | |
| 787 self.stepFrame = None | |
| 788 self.user_line(frame) | |
| 789 | |
| 790 def stop_here(self, frame): | |
| 791 """ | |
| 792 Public method reimplemented to filter out debugger files. | |
| 793 | |
| 794 Tracing is turned off for files that are part of the | |
| 795 debugger that are called from the application being debugged. | |
| 796 | |
| 797 @param frame the frame object | |
| 798 @return flag indicating whether the debugger should stop here | |
| 799 """ | |
| 800 if self.__skip_it(frame): | |
| 801 return 0 | |
| 802 return bdb.Bdb.stop_here(self, frame) | |
| 803 | |
| 804 def __skip_it(self, frame): | |
| 805 """ | |
| 806 Private method to filter out debugger files. | |
| 807 | |
| 808 Tracing is turned off for files that are part of the | |
| 809 debugger that are called from the application being debugged. | |
| 810 | |
| 811 @param frame the frame object | |
| 812 @return flag indicating whether the debugger should skip this frame | |
| 813 """ | |
| 814 if frame is None: | |
| 815 return 1 | |
| 816 | |
| 817 fn = self.fix_frame_filename(frame) | |
| 818 | |
| 819 # Eliminate things like <string> and <stdin>. | |
| 820 if fn[0] == '<': | |
| 821 return 1 | |
| 822 | |
| 823 #XXX - think of a better way to do this. It's only a convenience for | |
| 824 #debugging the debugger - when the debugger code is in the current | |
| 825 #directory. | |
| 826 if os.path.basename(fn) in [ | |
| 827 'AsyncFile.py', 'AsyncIO.py', | |
| 828 'DebugConfig.py', 'DCTestResult.py', | |
| 829 'DebugBase.py', 'DebugClientBase.py', | |
| 830 'DebugClientCapabilities.py', 'DebugClient.py', | |
| 831 'DebugClientThreads.py', 'DebugProtocol.py', | |
| 832 'DebugThread.py', 'FlexCompleter.py', | |
| 833 'PyProfile.py'] or \ | |
| 834 os.path.dirname(fn).endswith("coverage"): | |
| 835 return 1 | |
| 836 | |
| 837 if self._dbgClient.shouldSkip(fn): | |
| 838 return 1 | |
| 839 | |
| 840 return 0 | |
| 841 | |
| 842 def isBroken(self): | |
| 843 """ | |
| 844 Public method to return the broken state of the debugger. | |
| 845 | |
| 846 @return flag indicating the broken state (boolean) | |
| 847 """ | |
| 848 return self.__isBroken | |
| 849 | |
| 850 def getEvent(self): | |
| 851 """ | |
| 852 Protected method to return the last debugger event. | |
| 853 | |
| 854 @return last debugger event (string) | |
| 855 """ | |
| 856 return self.__event | |
| 857 | |
| 858 # | |
| 859 # eflag: FileType = Python2 | |
| 860 # eflag: noqa = M601, M702 |
