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GeezerVison is showing github.com — pythonVSCode/pythonFiles/rope/refactor/move.py at master · MightyWing/pythonVSCode Expand file tree/ Copy pathmove.pyMore file actions 784 lines (672 loc) · 32.5 KB / Copy pathmove.pyFile metadata and controls784 lines (672 loc) · 32.5 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 """A module containing classes for move refactoring `create_move()` is a factory for creating move refactoring objects based on inputs. """ from rope.base import (pyobjects, codeanalyze, exceptions, pynames, taskhandle, evaluate, worder, libutils) from rope.base.change import ChangeSet, ChangeContents, MoveResource from rope.refactor import importutils, rename, occurrences, sourceutils, \ functionutils def create_move(project, resource, offset=None): """A factory for creating Move objects Based on `resource` and `offset`, return one of `MoveModule`, `MoveGlobal` or `MoveMethod` for performing move refactoring. """ if offset is None: return MoveModule(project, resource) this_pymodule = project.get_pymodule(resource) pyname = evaluate.eval_location(this_pymodule, offset) if pyname is not None: pyobject = pyname.get_object() if isinstance(pyobject, pyobjects.PyModule) or \ isinstance(pyobject, pyobjects.PyPackage): return MoveModule(project, pyobject.get_resource()) if isinstance(pyobject, pyobjects.PyFunction) and \ isinstance(pyobject.parent, pyobjects.PyClass): return MoveMethod(project, resource, offset) if isinstance(pyobject, pyobjects.PyDefinedObject) and \ isinstance(pyobject.parent, pyobjects.PyModule) or \ isinstance(pyname, pynames.AssignedName): return MoveGlobal(project, resource, offset) raise exceptions.RefactoringError( 'Move only works on global classes/functions/variables, modules and ' 'methods.') class MoveMethod(object): """For moving methods It makes a new method in the destination class and changes the body of the old method to call the new method. You can inline the old method to change all of its occurrences. """ def __init__(self, project, resource, offset): self.project = project this_pymodule = self.project.get_pymodule(resource) pyname = evaluate.eval_location(this_pymodule, offset) self.method_name = worder.get_name_at(resource, offset) self.pyfunction = pyname.get_object() if self.pyfunction.get_kind() != 'method': raise exceptions.RefactoringError('Only normal methods' ' can be moved.') def get_changes(self, dest_attr, new_name=None, resources=None, task_handle=taskhandle.NullTaskHandle()): """Return the changes needed for this refactoring Parameters: - `dest_attr`: the name of the destination attribute - `new_name`: the name of the new method; if `None` uses the old name - `resources` can be a list of `rope.base.resources.File`\s to apply this refactoring on. If `None`, the restructuring will be applied to all python files. """ changes = ChangeSet('Moving method <%s>' % self.method_name) if resources is None: resources = self.project.get_python_files() if new_name is None: new_name = self.get_method_name() resource1, start1, end1, new_content1 = \ self._get_changes_made_by_old_class(dest_attr, new_name) collector1 = codeanalyze.ChangeCollector(resource1.read()) collector1.add_change(start1, end1, new_content1) resource2, start2, end2, new_content2 = \ self._get_changes_made_by_new_class(dest_attr, new_name) if resource1 == resource2: collector1.add_change(start2, end2, new_content2) else: collector2 = codeanalyze.ChangeCollector(resource2.read()) collector2.add_change(start2, end2, new_content2) result = collector2.get_changed() import_tools = importutils.ImportTools(self.project) new_imports = self._get_used_imports(import_tools) if new_imports: goal_pymodule = libutils.get_string_module( self.project, result, resource2) result = _add_imports_to_module( import_tools, goal_pymodule, new_imports) if resource2 in resources: changes.add_change(ChangeContents(resource2, result)) if resource1 in resources: changes.add_change(ChangeContents(resource1, collector1.get_changed())) return changes def get_method_name(self): return self.method_name def _get_used_imports(self, import_tools): return importutils.get_imports(self.project, self.pyfunction) def _get_changes_made_by_old_class(self, dest_attr, new_name): pymodule = self.pyfunction.get_module() indents = self._get_scope_indents(self.pyfunction) body = 'return self.%s.%s(%s)\n' % ( dest_attr, new_name, self._get_passed_arguments_string()) region = sourceutils.get_body_region(self.pyfunction) return (pymodule.get_resource(), region[0], region[1], sourceutils.fix_indentation(body, indents)) def _get_scope_indents(self, pyobject): pymodule = pyobject.get_module() return sourceutils.get_indents( pymodule.lines, pyobject.get_scope().get_start()) + \ sourceutils.get_indent(self.project) def _get_changes_made_by_new_class(self, dest_attr, new_name): old_pyclass = self.pyfunction.parent if dest_attr not in old_pyclass: raise exceptions.RefactoringError( 'Destination attribute <%s> not found' % dest_attr) pyclass = old_pyclass[dest_attr].get_object().get_type() if not isinstance(pyclass, pyobjects.PyClass): raise exceptions.RefactoringError( 'Unknown class type for attribute <%s>' % dest_attr) pymodule = pyclass.get_module() resource = pyclass.get_module().get_resource() start, end = sourceutils.get_body_region(pyclass) pre_blanks = '\n' if pymodule.source_code[start:end].strip() != 'pass': pre_blanks = '\n\n' start = end indents = self._get_scope_indents(pyclass) body = pre_blanks + sourceutils.fix_indentation( self.get_new_method(new_name), indents) return resource, start, end, body def get_new_method(self, name): return '%s\n%s' % ( self._get_new_header(name), sourceutils.fix_indentation(self._get_body(), sourceutils.get_indent(self.project))) def _get_unchanged_body(self): return sourceutils.get_body(self.pyfunction) def _get_body(self, host='host'): self_name = self._get_self_name() body = self_name + ' = None\n' + self._get_unchanged_body() pymodule = libutils.get_string_module(self.project, body) finder = occurrences.create_finder( self.project, self_name, pymodule[self_name]) result = rename.rename_in_module(finder, host, pymodule=pymodule) if result is None: result = body return result[result.index('\n') + 1:] def _get_self_name(self): return self.pyfunction.get_param_names()[0] def _get_new_header(self, name): header = 'def %s(self' % name if self._is_host_used(): header += ', host' definition_info = functionutils.DefinitionInfo.read(self.pyfunction) others = definition_info.arguments_to_string(1) if others: header += ', ' + others return header + '):' def _get_passed_arguments_string(self): result = '' if self._is_host_used(): result = 'self' definition_info = functionutils.DefinitionInfo.read(self.pyfunction) others = definition_info.arguments_to_string(1) if others: if result: result += ', ' result += others return result def _is_host_used(self): return self._get_body('__old_self') != self._get_unchanged_body() class MoveGlobal(object): """For moving global function and classes""" def __init__(self, project, resource, offset): self.project = project this_pymodule = self.project.get_pymodule(resource) self.old_pyname = evaluate.eval_location(this_pymodule, offset) if self.old_pyname is None: raise exceptions.RefactoringError( 'Move refactoring should be performed on a ' 'class/function/variable.') if self._is_variable(self.old_pyname): self.old_name = worder.get_name_at(resource, offset) pymodule = this_pymodule else: self.old_name = self.old_pyname.get_object().get_name() pymodule = self.old_pyname.get_object().get_module() self._check_exceptional_conditions() self.source = pymodule.get_resource() self.tools = _MoveTools(self.project, self.source, self.old_pyname, self.old_name) self.import_tools = self.tools.import_tools def _import_filter(self, stmt): module_name = libutils.modname(self.source) if isinstance(stmt.import_info, importutils.NormalImport): # Affect any statement that imports the source module return any(module_name == name for name, alias in stmt.import_info.names_and_aliases) elif isinstance(stmt.import_info, importutils.FromImport): # Affect statements importing from the source package if '.' in module_name: package_name, basename = module_name.rsplit('.', 1) if (stmt.import_info.module_name == package_name and any(basename == name for name, alias in stmt.import_info.names_and_aliases)): return True return stmt.import_info.module_name == module_name return False def _check_exceptional_conditions(self): if self._is_variable(self.old_pyname): pymodule = self.old_pyname.get_definition_location()[0] try: pymodule.get_scope().get_name(self.old_name) except exceptions.NameNotFoundError: self._raise_refactoring_error() elif not (isinstance(self.old_pyname.get_object(), pyobjects.PyDefinedObject) and self._is_global(self.old_pyname.get_object())): self._raise_refactoring_error() def _raise_refactoring_error(self): raise exceptions.RefactoringError( 'Move refactoring should be performed on a global class, function ' 'or variable.') def _is_global(self, pyobject): return pyobject.get_scope().parent == pyobject.get_module().get_scope() def _is_variable(self, pyname): return isinstance(pyname, pynames.AssignedName) def get_changes(self, dest, resources=None, task_handle=taskhandle.NullTaskHandle()): if resources is None: resources = self.project.get_python_files() if dest is None or not dest.exists(): raise exceptions.RefactoringError( 'Move destination does not exist.') if dest.is_folder() and dest.has_child('__init__.py'): dest = dest.get_child('__init__.py') if dest.is_folder(): raise exceptions.RefactoringError( 'Move destination for non-modules should not be folders.') if self.source == dest: raise exceptions.RefactoringError( 'Moving global elements to the same module.') return self._calculate_changes(dest, resources, task_handle) def _calculate_changes(self, dest, resources, task_handle): changes = ChangeSet('Moving global <%s>' % self.old_name) job_set = task_handle.create_jobset('Collecting Changes', len(resources)) for file_ in resources: job_set.started_job(file_.path) if file_ == self.source: changes.add_change(self._source_module_changes(dest)) elif file_ == dest: changes.add_change(self._dest_module_changes(dest)) elif self.tools.occurs_in_module(resource=file_): pymodule = self.project.get_pymodule(file_) # Changing occurrences placeholder = '__rope_renaming_%s_' % self.old_name source = self.tools.rename_in_module(placeholder, resource=file_) should_import = source is not None # Removing out of date imports pymodule = self.tools.new_pymodule(pymodule, source) source = self.import_tools.organize_imports( pymodule, sort=False, import_filter=self._import_filter) # Adding new import if should_import: pymodule = self.tools.new_pymodule(pymodule, source) source, imported = importutils.add_import( self.project, pymodule, self._new_modname(dest), self.old_name) source = source.replace(placeholder, imported) source = self.tools.new_source(pymodule, source) if source != file_.read(): changes.add_change(ChangeContents(file_, source)) job_set.finished_job() return changes def _source_module_changes(self, dest): placeholder = '__rope_moving_%s_' % self.old_name handle = _ChangeMoveOccurrencesHandle(placeholder) occurrence_finder = occurrences.create_finder( self.project, self.old_name, self.old_pyname) start, end = self._get_moving_region() renamer = ModuleSkipRenamer(occurrence_finder, self.source, handle, start, end) source = renamer.get_changed_module() pymodule = libutils.get_string_module(self.project, source, self.source) source = self.import_tools.organize_imports(pymodule, sort=False) if handle.occurred: pymodule = libutils.get_string_module( self.project, source, self.source) # Adding new import source, imported = importutils.add_import( self.project, pymodule, self._new_modname(dest), self.old_name) source = source.replace(placeholder, imported) return ChangeContents(self.source, source) def _new_modname(self, dest): return libutils.modname(dest) def _dest_module_changes(self, dest): # Changing occurrences pymodule = self.project.get_pymodule(dest) source = self.tools.rename_in_module(self.old_name, pymodule) pymodule = self.tools.new_pymodule(pymodule, source) moving, imports = self._get_moving_element_with_imports() pymodule, has_changed = self._add_imports2(pymodule, imports) module_with_imports = self.import_tools.module_imports(pymodule) source = pymodule.source_code lineno = 0 if module_with_imports.imports: lineno = module_with_imports.imports[-1].end_line - 1 else: while lineno < pymodule.lines.length() and \ pymodule.lines.get_line(lineno + 1).\ lstrip().startswith('#'): lineno += 1 if lineno > 0: cut = pymodule.lines.get_line_end(lineno) + 1 result = source[:cut] + '\n\n' + moving + source[cut:] else: result = moving + source # Organizing imports source = result pymodule = libutils.get_string_module(self.project, source, dest) source = self.import_tools.organize_imports(pymodule, sort=False, unused=False) # Remove unused imports of the old module pymodule = libutils.get_string_module(self.project, source, dest) source = self.import_tools.organize_imports( pymodule, sort=False, selfs=False, unused=True, import_filter=self._import_filter) return ChangeContents(dest, source) def _get_moving_element_with_imports(self): return moving_code_with_imports( self.project, self.source, self._get_moving_element()) def _get_module_with_imports(self, source_code, resource): pymodule = libutils.get_string_module( self.project, source_code, resource) return self.import_tools.module_imports(pymodule) def _get_moving_element(self): start, end = self._get_moving_region() moving = self.source.read()[start:end] return moving.rstrip() + '\n' def _get_moving_region(self): pymodule = self.project.get_pymodule(self.source) lines = pymodule.lines if self._is_variable(self.old_pyname): logical_lines = pymodule.logical_lines lineno = logical_lines.logical_line_in( self.old_pyname.get_definition_location()[1])[0] start = lines.get_line_start(lineno) end_line = logical_lines.logical_line_in(lineno)[1] else: scope = self.old_pyname.get_object().get_scope() start = lines.get_line_start(scope.get_start()) end_line = scope.get_end() # Include comment lines before the definition start_line = lines.get_line_number(start) while start_line > 1 and lines.get_line(start_line - 1).startswith('#'): start_line -= 1 start = lines.get_line_start(start_line) while end_line < lines.length() and \ lines.get_line(end_line + 1).strip() == '': end_line += 1 end = min(lines.get_line_end(end_line) + 1, len(pymodule.source_code)) return start, end def _add_imports2(self, pymodule, new_imports): source = self.tools.add_imports(pymodule, new_imports) if source is None: return pymodule, False else: resource = pymodule.get_resource() pymodule = libutils.get_string_module( self.project, source, resource) return pymodule, True class MoveModule(object): """For moving modules and packages""" def __init__(self, project, resource): self.project = project if not resource.is_folder() and resource.name == '__init__.py': resource = resource.parent if resource.is_folder() and not resource.has_child('__init__.py'): raise exceptions.RefactoringError( 'Cannot move non-package folder.') dummy_pymodule = libutils.get_string_module(self.project, '') self.old_pyname = pynames.ImportedModule(dummy_pymodule, resource=resource) self.source = self.old_pyname.get_object().get_resource() if self.source.is_folder(): self.old_name = self.source.name else: self.old_name = self.source.name[:-3] self.tools = _MoveTools(self.project, self.source, self.old_pyname, self.old_name) self.import_tools = self.tools.import_tools def get_changes(self, dest, resources=None, task_handle=taskhandle.NullTaskHandle()): if resources is None: resources = self.project.get_python_files() if dest is None or not dest.is_folder(): raise exceptions.RefactoringError( 'Move destination for modules should be packages.') return self._calculate_changes(dest, resources, task_handle) def _calculate_changes(self, dest, resources, task_handle): changes = ChangeSet('Moving module <%s>' % self.old_name) job_set = task_handle.create_jobset('Collecting changes', len(resources)) for module in resources: job_set.started_job(module.path) if module == self.source: self._change_moving_module(changes, dest) else: source = self._change_occurrences_in_module(dest, resource=module) if source is not None: changes.add_change(ChangeContents(module, source)) job_set.finished_job() if self.project == self.source.project: changes.add_change(MoveResource(self.source, dest.path)) return changes def _new_modname(self, dest): destname = libutils.modname(dest) if destname: return destname + '.' + self.old_name return self.old_name def _new_import(self, dest): return importutils.NormalImport([(self._new_modname(dest), None)]) def _change_moving_module(self, changes, dest): if not self.source.is_folder(): pymodule = self.project.get_pymodule(self.source) source = self.import_tools.relatives_to_absolutes(pymodule) pymodule = self.tools.new_pymodule(pymodule, source) source = self._change_occurrences_in_module(dest, pymodule) source = self.tools.new_source(pymodule, source) if source != self.source.read(): changes.add_change(ChangeContents(self.source, source)) def _change_occurrences_in_module(self, dest, pymodule=None, resource=None): if not self.tools.occurs_in_module(pymodule=pymodule, resource=resource): return if pymodule is None: pymodule = self.project.get_pymodule(resource) new_name = self._new_modname(dest) module_imports = importutils.get_module_imports(self.project, pymodule) changed = False source = None if libutils.modname(dest): changed = self._change_import_statements(dest, new_name, module_imports) if changed: source = module_imports.get_changed_source() source = self.tools.new_source(pymodule, source) pymodule = self.tools.new_pymodule(pymodule, source) new_import = self._new_import(dest) source = self.tools.rename_in_module( new_name, imports=True, pymodule=pymodule, resource=resource if not changed else None) should_import = self.tools.occurs_in_module( pymodule=pymodule, resource=resource, imports=False) pymodule = self.tools.new_pymodule(pymodule, source) source = self.tools.remove_old_imports(pymodule) if should_import: pymodule = self.tools.new_pymodule(pymodule, source) source = self.tools.add_imports(pymodule, [new_import]) source = self.tools.new_source(pymodule, source) if source is not None and source != pymodule.resource.read(): return source return None def _change_import_statements(self, dest, new_name, module_imports): moving_module = self.source parent_module = moving_module.parent changed = False for import_stmt in module_imports.imports: if not any(name_and_alias[0] == self.old_name for name_and_alias in import_stmt.import_info.names_and_aliases) and \ not any(name_and_alias[0] == libutils.modname(self.source) for name_and_alias in import_stmt.import_info.names_and_aliases): continue # Case 1: Look for normal imports of the moving module. if isinstance(import_stmt.import_info, importutils.NormalImport): continue # Case 2: The moving module is from-imported. changed = self._handle_moving_in_from_import_stmt( dest, import_stmt, module_imports, parent_module) or changed # Case 3: Names are imported from the moving module. context = importutils.importinfo.ImportContext(self.project, None) if not import_stmt.import_info.is_empty() and \ import_stmt.import_info.get_imported_resource(context) == \ moving_module: import_stmt.import_info = importutils.FromImport( new_name, import_stmt.import_info.level, import_stmt.import_info.names_and_aliases) changed = True return changed def _handle_moving_in_from_import_stmt(self, dest, import_stmt, module_imports, parent_module): changed = False context = importutils.importinfo.ImportContext(self.project, None) if import_stmt.import_info.get_imported_resource(context) == \ parent_module: imports = import_stmt.import_info.names_and_aliases new_imports = [] for name, alias in imports: # The moving module was imported. if name == self.old_name: changed = True new_import = importutils.FromImport( libutils.modname(dest), 0, [(self.old_name, alias)]) module_imports.add_import(new_import) else: new_imports.append((name, alias)) # Update the imports if the imported names were changed. if new_imports != imports: changed = True if new_imports: import_stmt.import_info = importutils.FromImport( import_stmt.import_info.module_name, import_stmt.import_info.level, new_imports) else: import_stmt.empty_import() return changed class _ChangeMoveOccurrencesHandle(object): def __init__(self, new_name): self.new_name = new_name self.occurred = False def occurred_inside_skip(self, change_collector, occurrence): pass def occurred_outside_skip(self, change_collector, occurrence): start, end = occurrence.get_primary_range() change_collector.add_change(start, end, self.new_name) self.occurred = True class _MoveTools(object): def __init__(self, project, source, pyname, old_name): self.project = project self.source = source self.old_pyname = pyname self.old_name = old_name self.import_tools = importutils.ImportTools(self.project) def remove_old_imports(self, pymodule): old_source = pymodule.source_code module_with_imports = self.import_tools.module_imports(pymodule) class CanSelect(object): changed = False old_name = self.old_name old_pyname = self.old_pyname def __call__(self, name): try: if name == self.old_name and \ pymodule[name].get_object() == \ self.old_pyname.get_object(): self.changed = True return False except exceptions.AttributeNotFoundError: pass return True can_select = CanSelect() module_with_imports.filter_names(can_select) new_source = module_with_imports.get_changed_source() if old_source != new_source: return new_source def rename_in_module(self, new_name, pymodule=None, imports=False, resource=None): occurrence_finder = self._create_finder(imports) source = rename.rename_in_module( occurrence_finder, new_name, replace_primary=True, pymodule=pymodule, resource=resource) return source def occurs_in_module(self, pymodule=None, resource=None, imports=True): finder = self._create_finder(imports) for occurrence in finder.find_occurrences(pymodule=pymodule, resource=resource): return True return False def _create_finder(self, imports): return occurrences.create_finder(self.project, self.old_name, self.old_pyname, imports=imports, keywords=False) def new_pymodule(self, pymodule, source): if source is not None: return libutils.get_string_module( self.project, source, pymodule.get_resource()) return pymodule def new_source(self, pymodule, source): if source is None: return pymodule.source_code return source def add_imports(self, pymodule, new_imports): return _add_imports_to_module(self.import_tools, pymodule, new_imports) def _add_imports_to_module(import_tools, pymodule, new_imports): module_with_imports = import_tools.module_imports(pymodule) for new_import in new_imports: module_with_imports.add_import(new_import) return module_with_imports.get_changed_source() def moving_code_with_imports(project, resource, source): import_tools = importutils.ImportTools(project) pymodule = libutils.get_string_module(project, source, resource) # Strip comment prefix, if any. These need to stay before the moving # section, but imports would be added between them. lines = codeanalyze.SourceLinesAdapter(source) start = 1 while start < lines.length() and lines.get_line(start).startswith('#'): start += 1 moving_prefix = source[:lines.get_line_start(start)] pymodule = libutils.get_string_module( project, source[lines.get_line_start(start):], resource) origin = project.get_pymodule(resource) imports = [] for stmt in import_tools.module_imports(origin).imports: imports.append(stmt.import_info) back_names = [] for name in origin: if name not in pymodule: back_names.append(name) imports.append(import_tools.get_from_import(resource, back_names)) source = _add_imports_to_module(import_tools, pymodule, imports) pymodule = libutils.get_string_module(project, source, resource) source = import_tools.relatives_to_absolutes(pymodule) pymodule = libutils.get_string_module(project, source, resource) source = import_tools.organize_imports(pymodule, selfs=False) pymodule = libutils.get_string_module(project, source, resource) # extracting imports after changes module_imports = import_tools.module_imports(pymodule) imports = [import_stmt.import_info for import_stmt in module_imports.imports] start = 1 if module_imports.imports: start = module_imports.imports[-1].end_line lines = codeanalyze.SourceLinesAdapter(source) while start < lines.length() and not lines.get_line(start).strip(): start += 1 # Reinsert the prefix which was removed at the beginning moving = moving_prefix + source[lines.get_line_start(start):] return moving, imports class ModuleSkipRenamerHandle(object): def occurred_outside_skip(self, change_collector, occurrence): pass def occurred_inside_skip(self, change_collector, occurrence): pass class ModuleSkipRenamer(object): """Rename occurrences in a module This class can be used when you want to treat a region in a file separately from other parts when renaming. """ def __init__(self, occurrence_finder, resource, handle=None, skip_start=0, skip_end=0, replacement=''): """Constructor if replacement is `None` the region is not changed. Otherwise it is replaced with `replacement`. """ self.occurrence_finder = occurrence_finder self.resource = resource self.skip_start = skip_start self.skip_end = skip_end self.replacement = replacement self.handle = handle if self.handle is None: self.handle = ModuleSkipRenamerHandle() def get_changed_module(self): source = self.resource.read() change_collector = codeanalyze.ChangeCollector(source) if self.replacement is not None: change_collector.add_change(self.skip_start, self.skip_end, self.replacement) for occurrence in self.occurrence_finder.find_occurrences( self.resource): start, end = occurrence.get_primary_range() if self.skip_start <= start < self.skip_end: self.handle.occurred_inside_skip(change_collector, occurrence) else: self.handle.occurred_outside_skip(change_collector, occurrence) result = change_collector.get_changed() if result is not None and result != source: return result |
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