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GeezerVison is showing github.com — pythonVSCode/pythonFiles/PythonTools/visualstudio_py_repl.py at master · jrieken/pythonVSCode Expand file tree/ Copy pathvisualstudio_py_repl.pyMore file actions 1391 lines (1161 loc) · 48.8 KB / Copy pathvisualstudio_py_repl.pyFile metadata and controls1391 lines (1161 loc) · 48.8 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 # Python Tools for Visual Studio # Copyright(c) Microsoft Corporation # All rights reserved. # # Licensed under the Apache License, Version 2.0 (the License); you may not use # this file except in compliance with the License. You may obtain a copy of the # License at http://www.apache.org/licenses/LICENSE-2.0 # # THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS # OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY # IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, # MERCHANTABLITY OR NON-INFRINGEMENT. # # See the Apache Version 2.0 License for specific language governing # permissions and limitations under the License. from __future__ import with_statement __version__ = "3.0.0.0" # This module MUST NOT import threading in global scope. This is because in a direct (non-ptvsd) # attach scenario, it is loaded on the injected debugger attach thread, and if threading module # hasn't been loaded already, it will assume that the thread on which it is being loaded is the # main thread. This will cause issues when the thread goes away after attach completes. try: import thread except ImportError: # Renamed in Python3k import _thread as thread try: from ssl import SSLError except: SSLError = None import sys import socket import select import time import struct import imp import traceback import random import os import inspect import types from collections import deque try: # In the local attach scenario, visualstudio_py_util is injected into globals() # by PyDebugAttach before loading this module, and cannot be imported. _vspu = visualstudio_py_util except: try: import visualstudio_py_util as _vspu except ImportError: import ptvsd.visualstudio_py_util as _vspu to_bytes = _vspu.to_bytes read_bytes = _vspu.read_bytes read_int = _vspu.read_int read_string = _vspu.read_string write_bytes = _vspu.write_bytes write_int = _vspu.write_int write_string = _vspu.write_string try: unicode except NameError: unicode = str try: BaseException except NameError: # BaseException not defined until Python 2.5 BaseException = Exception DEBUG = os.environ.get('DEBUG_REPL') is not None __all__ = ['ReplBackend', 'BasicReplBackend', 'BACKEND'] def _debug_write(out): if DEBUG: sys.__stdout__.write(out) sys.__stdout__.flush() class SafeSendLock(object): """a lock which ensures we're released if we take a KeyboardInterrupt exception acquiring it""" def __init__(self): self.lock = thread.allocate_lock() def __enter__(self): self.acquire() def __exit__(self, exc_type, exc_value, tb): self.release() def acquire(self): try: self.lock.acquire() except KeyboardInterrupt: try: self.lock.release() except: pass raise def release(self): self.lock.release() def _command_line_to_args_list(cmdline): """splits a string into a list using Windows command line syntax.""" args_list = [] if cmdline and cmdline.strip(): from ctypes import c_int, c_voidp, c_wchar_p from ctypes import byref, POINTER, WinDLL clta = WinDLL('shell32').CommandLineToArgvW clta.argtypes = [c_wchar_p, POINTER(c_int)] clta.restype = POINTER(c_wchar_p) lf = WinDLL('kernel32').LocalFree lf.argtypes = [c_voidp] pNumArgs = c_int() r = clta(cmdline, byref(pNumArgs)) if r: for index in range(0, pNumArgs.value): if sys.hexversion >= 0x030000F0: argval = r[index] else: argval = r[index].encode('ascii', 'replace') args_list.append(argval) lf(r) else: sys.stderr.write('Error parsing script arguments:\n') sys.stderr.write(cmdline + '\n') return args_list class UnsupportedReplException(Exception): def __init__(self, reason): self.reason = reason # save the start_new_thread so we won't debug/break into the REPL comm thread. start_new_thread = thread.start_new_thread class ReplBackend(object): """back end for executing REPL code. This base class handles all of the communication with the remote process while derived classes implement the actual inspection and introspection.""" _MRES = to_bytes('MRES') _SRES = to_bytes('SRES') _MODS = to_bytes('MODS') _IMGD = to_bytes('IMGD') _PRPC = to_bytes('PRPC') _RDLN = to_bytes('RDLN') _STDO = to_bytes('STDO') _STDE = to_bytes('STDE') _DBGA = to_bytes('DBGA') _DETC = to_bytes('DETC') _DPNG = to_bytes('DPNG') _DXAM = to_bytes('DXAM') _CHWD = to_bytes('CHWD') _MERR = to_bytes('MERR') _SERR = to_bytes('SERR') _ERRE = to_bytes('ERRE') _EXIT = to_bytes('EXIT') _DONE = to_bytes('DONE') _MODC = to_bytes('MODC') def __init__(self, *args, **kwargs): import threading self.conn = None self.send_lock = SafeSendLock() self.input_event = threading.Lock() self.input_event.acquire() # lock starts acquired (we use it like a manual reset event) self.input_string = None self.exit_requested = False def connect(self, port): self.conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.conn.connect(('127.0.0.1', port)) # start a new thread for communicating w/ the remote process start_new_thread(self._repl_loop, ()) def connect_using_socket(self, socket): self.conn = socket start_new_thread(self._repl_loop, ()) def _repl_loop(self): """loop on created thread which processes communicates with the REPL window""" try: while True: if self.check_for_exit_repl_loop(): break # we receive a series of 4 byte commands. Each command then # has it's own format which we must parse before continuing to # the next command. self.flush() self.conn.settimeout(10) # 2.x raises SSLError in case of timeout (http://bugs.python.org/issue10272) if SSLError: timeout_exc_types = (socket.timeout, SSLError) else: timeout_exc_types = socket.timeout try: inp = read_bytes(self.conn, 4) except timeout_exc_types: r, w, x = select.select([], [], [self.conn], 0) if x: # an exception event has occured on the socket... raise continue self.conn.settimeout(None) if inp == '': break self.flush() cmd = ReplBackend._COMMANDS.get(inp) if cmd is not None: cmd(self) except: _debug_write('error in repl loop') _debug_write(traceback.format_exc()) self.exit_process() time.sleep(2) # try and exit gracefully, then interrupt main if necessary if sys.platform == 'cli': # just kill us as fast as possible import System System.Environment.Exit(1) self.interrupt_main() def check_for_exit_repl_loop(self): return False def _cmd_run(self): """runs the received snippet of code""" self.run_command(read_string(self.conn)) def _cmd_abrt(self): """aborts the current running command""" # abort command, interrupts execution of the main thread. self.interrupt_main() def _cmd_exit(self): """exits the interactive process""" self.exit_requested = True self.exit_process() def _cmd_mems(self): """gets the list of members available for the given expression""" expression = read_string(self.conn) try: name, inst_members, type_members = self.get_members(expression) except: with self.send_lock: write_bytes(self.conn, ReplBackend._MERR) _debug_write('error in eval') _debug_write(traceback.format_exc()) else: with self.send_lock: write_bytes(self.conn, ReplBackend._MRES) write_string(self.conn, name) self._write_member_dict(inst_members) self._write_member_dict(type_members) def _cmd_sigs(self): """gets the signatures for the given expression""" expression = read_string(self.conn) try: sigs = self.get_signatures(expression) except: with self.send_lock: write_bytes(self.conn, ReplBackend._SERR) _debug_write('error in eval') _debug_write(traceback.format_exc()) else: with self.send_lock: write_bytes(self.conn, ReplBackend._SRES) # single overload write_int(self.conn, len(sigs)) for doc, args, vargs, varkw, defaults in sigs: # write overload write_string(self.conn, (doc or '')[:4096]) arg_count = len(args) + (vargs is not None) + (varkw is not None) write_int(self.conn, arg_count) def_values = [''] * (len(args) - len(defaults)) + ['=' + d for d in defaults] for arg, def_value in zip(args, def_values): write_string(self.conn, (arg or '') + def_value) if vargs is not None: write_string(self.conn, '*' + vargs) if varkw is not None: write_string(self.conn, '**' + varkw) def _cmd_setm(self): global exec_mod """sets the current module which code will execute against""" mod_name = read_string(self.conn) self.set_current_module(mod_name) def _cmd_sett(self): """sets the current thread and frame which code will execute against""" thread_id = read_int(self.conn) frame_id = read_int(self.conn) frame_kind = read_int(self.conn) self.set_current_thread_and_frame(thread_id, frame_id, frame_kind) def _cmd_mods(self): """gets the list of available modules""" try: res = self.get_module_names() res.sort() except: res = [] with self.send_lock: write_bytes(self.conn, ReplBackend._MODS) write_int(self.conn, len(res)) for name, filename in res: write_string(self.conn, name) write_string(self.conn, filename) def _cmd_inpl(self): """handles the input command which returns a string of input""" self.input_string = read_string(self.conn) self.input_event.release() def _cmd_excf(self): """handles executing a single file""" filename = read_string(self.conn) args = read_string(self.conn) self.execute_file(filename, args) def _cmd_excx(self): """handles executing a single file, module or process""" filetype = read_string(self.conn) filename = read_string(self.conn) args = read_string(self.conn) self.execute_file_ex(filetype, filename, args) def _cmd_debug_attach(self): import visualstudio_py_debugger port = read_int(self.conn) id = read_string(self.conn) debug_options = visualstudio_py_debugger.parse_debug_options(read_string(self.conn)) self.attach_process(port, id, debug_options) _COMMANDS = { to_bytes('run '): _cmd_run, to_bytes('abrt'): _cmd_abrt, to_bytes('exit'): _cmd_exit, to_bytes('mems'): _cmd_mems, to_bytes('sigs'): _cmd_sigs, to_bytes('mods'): _cmd_mods, to_bytes('setm'): _cmd_setm, to_bytes('sett'): _cmd_sett, to_bytes('inpl'): _cmd_inpl, to_bytes('excf'): _cmd_excf, to_bytes('excx'): _cmd_excx, to_bytes('dbga'): _cmd_debug_attach, } def _write_member_dict(self, mem_dict): write_int(self.conn, len(mem_dict)) for name, type_name in mem_dict.items(): write_string(self.conn, name) write_string(self.conn, type_name) def on_debugger_detach(self): with self.send_lock: write_bytes(self.conn, ReplBackend._DETC) def init_debugger(self): from os import path sys.path.append(path.dirname(__file__)) import visualstudio_py_debugger visualstudio_py_debugger.DONT_DEBUG.append(path.normcase(__file__)) new_thread = visualstudio_py_debugger.new_thread() sys.settrace(new_thread.trace_func) visualstudio_py_debugger.intercept_threads(True) def send_image(self, filename): with self.send_lock: write_bytes(self.conn, ReplBackend._IMGD) write_string(self.conn, filename) def write_png(self, image_bytes): with self.send_lock: write_bytes(self.conn, ReplBackend._DPNG) write_int(self.conn, len(image_bytes)) write_bytes(self.conn, image_bytes) def write_xaml(self, xaml_bytes): with self.send_lock: write_bytes(self.conn, ReplBackend._DXAM) write_int(self.conn, len(xaml_bytes)) write_bytes(self.conn, xaml_bytes) def send_prompt(self, ps1, ps2, allow_multiple_statements): """sends the current prompt to the interactive window""" with self.send_lock: write_bytes(self.conn, ReplBackend._PRPC) write_string(self.conn, ps1) write_string(self.conn, ps2) write_int(self.conn, 1 if allow_multiple_statements else 0) def send_cwd(self): """sends the current working directory""" with self.send_lock: write_bytes(self.conn, ReplBackend._CHWD) write_string(self.conn, os.getcwd()) def send_error(self): """reports that an error occured to the interactive window""" with self.send_lock: write_bytes(self.conn, ReplBackend._ERRE) def send_exit(self): """reports the that the REPL process has exited to the interactive window""" with self.send_lock: write_bytes(self.conn, ReplBackend._EXIT) def send_command_executed(self): with self.send_lock: write_bytes(self.conn, ReplBackend._DONE) def send_modules_changed(self): with self.send_lock: write_bytes(self.conn, ReplBackend._MODC) def read_line(self): """reads a line of input from standard input""" with self.send_lock: write_bytes(self.conn, ReplBackend._RDLN) self.input_event.acquire() return self.input_string def write_stdout(self, value): """writes a string to standard output in the remote console""" with self.send_lock: write_bytes(self.conn, ReplBackend._STDO) write_string(self.conn, value) def write_stderr(self, value): """writes a string to standard input in the remote console""" with self.send_lock: write_bytes(self.conn, ReplBackend._STDE) write_string(self.conn, value) ################################################################ # Implementation of execution, etc... def execution_loop(self): """starts processing execution requests""" raise NotImplementedError def run_command(self, command): """runs the specified command which is a string containing code""" raise NotImplementedError def execute_file(self, filename, args): """executes the given filename as the main module""" return self.execute_file_ex('script', filename, args) def execute_file_ex(self, filetype, filename, args): """executes the given filename as a 'script', 'module' or 'process'.""" raise NotImplementedError def interrupt_main(self): """aborts the current running command""" raise NotImplementedError def exit_process(self): """exits the REPL process""" raise NotImplementedError def get_members(self, expression): """returns a tuple of the type name, instance members, and type members""" raise NotImplementedError def get_signatures(self, expression): """returns doc, args, vargs, varkw, defaults.""" raise NotImplementedError def set_current_module(self, module): """sets the module which code executes against""" raise NotImplementedError def set_current_thread_and_frame(self, thread_id, frame_id, frame_kind): """sets the current thread and frame which code will execute against""" raise NotImplementedError def get_module_names(self): """returns a list of module names""" raise NotImplementedError def flush(self): """flushes the stdout/stderr buffers""" raise NotImplementedError def attach_process(self, port, debugger_id, debug_options): """starts processing execution requests""" raise NotImplementedError def exit_work_item(): sys.exit(0) if sys.platform == 'cli': # We need special handling to reset the abort for keyboard interrupt exceptions class ReplAbortException(Exception): pass import clr clr.AddReference('Microsoft.Dynamic') clr.AddReference('Microsoft.Scripting') clr.AddReference('IronPython') from Microsoft.Scripting import KeyboardInterruptException from Microsoft.Scripting import ParamDictionaryAttribute from IronPython.Runtime.Operations import PythonOps from IronPython.Runtime import PythonContext from Microsoft.Scripting import SourceUnit, SourceCodeKind from Microsoft.Scripting.Runtime import Scope python_context = clr.GetCurrentRuntime().GetLanguage(PythonContext) from System import DBNull, ParamArrayAttribute builtin_method_descriptor_type = type(list.append) import System NamespaceType = type(System) class _OldClass: pass _OldClassType = type(_OldClass) _OldInstanceType = type(_OldClass()) class BasicReplBackend(ReplBackend): future_bits = 0x3e010 # code flags used to mark future bits """Basic back end which executes all Python code in-proc""" def __init__(self, mod_name='__main__'): import threading ReplBackend.__init__(self) if mod_name is not None: if sys.platform == 'cli': self.exec_mod = Scope() self.exec_mod.__name__ = '__main__' else: sys.modules[mod_name] = self.exec_mod = imp.new_module(mod_name) else: self.exec_mod = sys.modules['__main__'] self.code_flags = 0 self.execute_item = None self.execute_item_lock = threading.Lock() self.execute_item_lock.acquire() # lock starts acquired (we use it like manual reset event) def init_connection(self): sys.stdout = _ReplOutput(self, is_stdout = True) sys.stderr = _ReplOutput(self, is_stdout = False) sys.stdin = _ReplInput(self) if sys.platform == 'cli': import System System.Console.SetOut(DotNetOutput(self, True)) System.Console.SetError(DotNetOutput(self, False)) def connect(self, port): ReplBackend.connect(self, port) self.init_connection() def connect_using_socket(self, socket): ReplBackend.connect_using_socket(self, socket) self.init_connection() def run_file_as_main(self, filename, args): f = open(filename, 'rb') try: contents = f.read().replace(to_bytes('\r\n'), to_bytes('\n')) finally: f.close() sys.argv = [filename] sys.argv.extend(_command_line_to_args_list(args)) self.exec_mod.__file__ = filename if sys.platform == 'cli': code = python_context.CreateSnippet(contents, None, SourceCodeKind.File) code.Execute(self.exec_mod) else: self.code_flags = 0 real_file = filename if isinstance(filename, unicode) and unicode is not str: # http://pytools.codeplex.com/workitem/696 # We need to encode the unicode filename here, Python 2.x will throw trying # to convert it to ASCII instead of the filesystem encoding. real_file = filename.encode(sys.getfilesystemencoding()) code = compile(contents, real_file, 'exec') self.code_flags |= (code.co_flags & BasicReplBackend.future_bits) exec(code, self.exec_mod.__dict__, self.exec_mod.__dict__) def python_executor(self, code): """we can't close over unbound variables in execute_code_work_item due to the exec, so we do it here""" def func(): code.Execute(self.exec_mod) return func def execute_code_work_item(self): _debug_write('Executing: ' + repr(self.current_code)) stripped_code = self.current_code.strip() if stripped_code: if sys.platform == 'cli': code_to_send = '' for line in stripped_code.split('\n'): stripped = line.strip() if (stripped.startswith('#') or not stripped) and not code_to_send: continue code_to_send += line + '\n' code = python_context.CreateSnippet(code_to_send, None, SourceCodeKind.InteractiveCode) dispatcher = clr.GetCurrentRuntime().GetLanguage(PythonContext).GetCommandDispatcher() if dispatcher is not None: dispatcher(self.python_executor(code)) else: code.Execute(self.exec_mod) else: code = compile(self.current_code, '<stdin>', 'single', self.code_flags) self.code_flags |= (code.co_flags & BasicReplBackend.future_bits) exec(code, self.exec_mod.__dict__, self.exec_mod.__dict__) self.current_code = None def run_one_command(self, cur_modules, cur_ps1, cur_ps2): # runs a single iteration of an input, execute file, etc... # This is extracted into it's own method so we play nice w/ IronPython thread abort. # Otherwise we have a nested exception hanging around and the 2nd abort doesn't # work (that's probably an IronPython bug) try: new_modules = self._get_cur_module_set() try: if new_modules != cur_modules: self.send_modules_changed() except: pass cur_modules = new_modules self.execute_item_lock.acquire() cur_cwd = os.getcwd() if self.check_for_exit_execution_loop(): return True, None, None, None if self.execute_item is not None: try: self.execute_item() finally: self.execute_item = None try: self.send_command_executed() except SocketError: return True, None, None, None try: if cur_ps1 != sys.ps1 or cur_ps2 != sys.ps2: new_ps1 = str(sys.ps1) new_ps2 = str(sys.ps2) self.send_prompt(new_ps1, new_ps2, allow_multiple_statements=False) cur_ps1 = new_ps1 cur_ps2 = new_ps2 except Exception: pass try: if cur_cwd != os.getcwd(): self.send_cwd() except Exception: pass except SystemExit: self.send_error() self.send_exit() # wait for ReplEvaluator to send back exit requested which will indicate # that all the output has been processed. while not self.exit_requested: time.sleep(.25) return True, None, None, None except BaseException: _debug_write('Exception') exc_type, exc_value, exc_tb = sys.exc_info() if sys.platform == 'cli': if isinstance(exc_value.clsException, System.Threading.ThreadAbortException): try: System.Threading.Thread.ResetAbort() except SystemError: pass sys.stderr.write('KeyboardInterrupt') else: # let IronPython format the exception so users can do -X:ExceptionDetail or -X:ShowClrExceptions exc_next = self.skip_internal_frames(exc_tb) sys.stderr.write(''.join(traceback.format_exception(exc_type, exc_value, exc_next))) else: exc_next = self.skip_internal_frames(exc_tb) sys.stderr.write(''.join(traceback.format_exception(exc_type, exc_value, exc_next))) try: self.send_error() except SocketError: _debug_write('err sending DONE') return True, None, None, None return False, cur_modules, cur_ps1, cur_ps2 def skip_internal_frames(self, tb): """return the first frame outside of the repl/debugger code""" while tb is not None and self.is_internal_frame(tb): tb = tb.tb_next return tb def is_internal_frame(self, tb): """return true if the frame is from internal code (repl or debugger)""" f = tb.tb_frame co = f.f_code filename = co.co_filename return filename.endswith('visualstudio_py_repl.py') or filename.endswith('visualstudio_py_debugger.py') def execution_loop(self): """loop on the main thread which is responsible for executing code""" if sys.platform == 'cli' and sys.version_info[:3] < (2, 7, 1): # IronPython doesn't support thread.interrupt_main until 2.7.1 import System self.main_thread = System.Threading.Thread.CurrentThread # save ourselves so global lookups continue to work (required pre-2.6)... cur_modules = set() try: cur_ps1 = sys.ps1 cur_ps2 = sys.ps2 except: # CPython/IronPython don't set sys.ps1 for non-interactive sessions, Jython and PyPy do sys.ps1 = cur_ps1 = '>>> ' sys.ps2 = cur_ps2 = '... ' self.send_prompt(cur_ps1, cur_ps2, allow_multiple_statements=False) while True: exit, cur_modules, cur_ps1, cur_ps2 = self.run_one_command(cur_modules, cur_ps1, cur_ps2) if exit: return def check_for_exit_execution_loop(self): return False def execute_script_work_item(self): self.run_file_as_main(self.current_code, self.current_args) def execute_module_work_item(self): new_argv = [''] + _command_line_to_args_list(self.current_args) old_argv = sys.argv import runpy try: sys.argv = new_argv runpy.run_module(self.current_code, alter_sys=True) except Exception: traceback.print_exc() finally: sys.argv = old_argv def execute_process_work_item(self): try: from subprocess import Popen, PIPE, STDOUT import codecs out_codec = codecs.lookup(sys.stdout.encoding) proc = Popen( '"%s" %s' % (self.current_code, self.current_args), stdout=PIPE, stderr=STDOUT, bufsize=0, ) for line in proc.stdout: print(out_codec.decode(line, 'replace')[0].rstrip('\r\n')) except Exception: traceback.print_exc() @staticmethod def _get_cur_module_set(): """gets the set of modules avoiding exceptions if someone puts something weird in there""" try: return set(sys.modules) except: res = set() for name in sys.modules: try: res.add(name) except: pass return res def run_command(self, command): self.current_code = command self.execute_item = self.execute_code_work_item self.execute_item_lock.release() def execute_file_ex(self, filetype, filename, args): self.current_code = filename self.current_args = args self.execute_item = getattr(self, 'execute_%s_work_item' % filetype, None) self.execute_item_lock.release() def interrupt_main(self): # acquire the send lock so we dont interrupt while we're communicting w/ the debugger with self.send_lock: if sys.platform == 'cli' and sys.version_info[:3] < (2, 7, 1): # IronPython doesn't get thread.interrupt_main until 2.7.1 self.main_thread.Abort(ReplAbortException()) else: thread.interrupt_main() def exit_process(self): self.execute_item = exit_work_item try: self.execute_item_lock.release() except: pass sys.exit(0) def get_members(self, expression): """returns a tuple of the type name, instance members, and type members""" getattr_func = getattr if not expression: all_members = {} if sys.platform == 'cli': code = python_context.CreateSnippet('vars()', None, SourceCodeKind.AutoDetect) items = code.Execute(self.exec_mod) else: items = self.exec_mod.__dict__ for key, value in items.items(): all_members[key] = self.get_type_name(value) return '', all_members, {} else: if sys.platform == 'cli': code = python_context.CreateSnippet(expression, None, SourceCodeKind.AutoDetect) val = code.Execute(self.exec_mod) code = python_context.CreateSnippet('dir(' + expression + ')', None, SourceCodeKind.AutoDetect) members = code.Execute(self.exec_mod) code = python_context.CreateSnippet('lambda value, name: getattr(value, name)', None, SourceCodeKind.AutoDetect) getattr_func = code.Execute(self.exec_mod) else: val = eval(expression, self.exec_mod.__dict__, self.exec_mod.__dict__) members = dir(val) return self.collect_members(val, members, getattr_func) def collect_members(self, val, members, getattr_func): t = type(val) inst_members = {} if hasattr(val, '__dict__'): # collect the instance members try: for mem_name in val.__dict__: mem_t = self._get_member_type(val, mem_name, True, getattr_func) if mem_t is not None: inst_members[mem_name] = mem_t except: pass # collect the type members type_members = {} for mem_name in members: if mem_name not in inst_members: mem_t = self._get_member_type(val, mem_name, False, getattr_func) if mem_t is not None: type_members[mem_name] = mem_t return t.__module__ + '.' + t.__name__, inst_members, type_members def get_ipy_sig(self, obj, ctor): args = [] vargs = None varkw = None defaults = [] for param in ctor.GetParameters(): if param.IsDefined(ParamArrayAttribute, False): vargs = param.Name elif param.IsDefined(ParamDictionaryAttribute, False): varkw = param.Name else: args.append(param.Name) if param.DefaultValue is not DBNull.Value: defaults.append(repr(param.DefaultValue)) return obj.__doc__, args, vargs, varkw, tuple(defaults) def get_signatures(self, expression): if sys.platform == 'cli': code = python_context.CreateSnippet(expression, None, SourceCodeKind.AutoDetect) val = code.Execute(self.exec_mod) else: val = eval(expression, self.exec_mod.__dict__, self.exec_mod.__dict__) return self.collect_signatures(val) def collect_signatures(self, val): doc = val.__doc__ type_obj = None if isinstance(val, type) or isinstance(val, _OldClassType): type_obj = val val = val.__init__ try: args, vargs, varkw, defaults = inspect.getargspec(val) except TypeError: # we're not doing inspect on a Python function... if sys.platform == 'cli': if type_obj is not None: clr_type = clr.GetClrType(type_obj) ctors = clr_type.GetConstructors() return [self.get_ipy_sig(type_obj, ctor) for ctor in ctors] elif type(val) is types.BuiltinFunctionType: return [self.get_ipy_sig(target, target.Targets[0]) for target in val.Overloads.Functions] elif type(val) is builtin_method_descriptor_type: val = PythonOps.GetBuiltinMethodDescriptorTemplate(val) return [self.get_ipy_sig(target, target.Targets[0]) for target in val.Overloads.Functions] raise remove_self = type_obj is not None or (type(val) is types.MethodType and ((sys.version_info >= (3,) and val.__self__ is not None) or (sys.version_info < (3,) and val.im_self is not None))) if remove_self: # remove self for instance methods and types args = args[1:] if defaults is not None: defaults = [repr(default) for default in defaults] else: defaults = [] return [(doc, args, vargs, varkw, defaults)] def set_current_module(self, module): mod = sys.modules.get(module) if mod is not None: _debug_write('Setting module to ' + module) if sys.platform == 'cli': self.exec_mod = clr.GetClrType(type(sys)).GetProperty('Scope', System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance).GetValue(sys, ()) else: self.exec_mod = mod elif module: _debug_write('Unknown module ' + module) def get_module_names(self): res = [] for name, module in sys.modules.items(): try: if name != 'visualstudio_py_repl' and name != '$visualstudio_py_debugger': if sys.platform == 'cli' and type(module) is NamespaceType: self.get_namespaces(name, module, res) else: try: filename = os.path.abspath(module.__file__) except Exception: filename = None res.append((name, filename)) except: pass return res def get_namespaces(self, basename, namespace, names): names.append((basename, '')) try: for name in dir(namespace): new_name = basename + '.' + name new_namespace = getattr(namespace, name) if type(new_namespace) is NamespaceType: self.get_namespaces(new_name, new_namespace, names) |
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