1 """Python abstract syntax node definitions 2 3 This file was originally generated by Tools/compiler/astgen.py 4 """ 5 from compiler.consts import CO_VARARGS, CO_VARKEYWORDS 6 7 def flatten(seq): 8 l = [] 9 for elt in seq: 10 if isinstance(elt, (tuple, list)): 11 for elt2 in flatten(elt): 12 l.append(elt2) 13 else: 14 l.append(elt) 15 return l 16 17 def flatten_nodes(seq): 18 return [n for n in flatten(seq) if isinstance(n, Node)] 19 20 def flatten_statement(seq): 21 l = [] 22 for elt in seq: 23 if isinstance(elt, Stmt): 24 l += flatten_statement(elt) 25 else: 26 l.append(elt) 27 return l 28 29 def flatten_assignment(node): 30 l = [] 31 if isinstance(node, (AssList, AssTuple)): 32 for n in node.nodes: 33 l += flatten_assignment(n) 34 else: 35 l.append(node) 36 return l 37 38 def is_deletion(node): 39 return isinstance(node, (AssAttr, AssName)) and node.flags == "OP_DELETE" 40 41 def docstring(s): 42 if s.find("\n") != -1: 43 if s.find("'''") != -1: 44 return '"""%s"""' % s.replace('"""', '\\"\\"\\"') 45 else: 46 return "'''%s'''" % s.replace("'''", "\\'\\'\\'") 47 else: 48 return repr(s) 49 50 def indent(s): 51 return s.replace("\n", "\n\t") 52 53 def decode_function(node): 54 star = (node.flags & 4 != 0) and 1 or 0 55 dstar = (node.flags & 8 != 0) and 1 or 0 56 argnames = node.argnames[:] 57 58 # Add stars to star and dstar parameters. 59 60 if star: 61 argnames[-dstar-star] = "*%s" % argnames[-dstar-star] 62 if dstar: 63 argnames[-dstar] = "**%s" % argnames[-dstar] 64 65 # Map defaults to parameters. 66 67 defaults = [None] * (len(node.argnames) - star - dstar - len(node.defaults)) + list(node.defaults) + [None] * (star + dstar) 68 return [(default and "%s=%s" % (argname, default) or argname) for (argname, default) in zip(argnames, defaults)] 69 70 nodes = {} 71 72 class AttributeUser: 73 74 "Annotation-related node." 75 76 def __init__(self): 77 self.unit = None 78 79 # Assignment-related information. 80 81 self._values = None 82 83 # Name and usage observations. 84 85 self._attrnames = None 86 self._attrcombined = None 87 self._attrmerged = None 88 89 # Related nodes. 90 91 self._attrbranches = None 92 self._attrcontributors = None 93 self._attrrevbranches = None 94 self._attrdefs = None 95 96 # Deductions. 97 98 self._attrtypes = None 99 self._attrspecifictypes = None 100 101 class AttributeAccessor: 102 103 "Access-related node." 104 105 def __init__(self): 106 self._attr = None 107 self._attrusers = None 108 self._username = None 109 110 # Deductions. 111 112 self._access_type = None 113 self._value_deduced = None 114 self._attr_deduced = None 115 self._set_context = None 116 117 self._attrs_deduced = None 118 self._attrs_deduced_from_usage = None 119 self._attrs_deduced_from_specific_usage = None 120 self._position_deduced = None 121 122 class OperatorUser: 123 124 "Operator-related node." 125 126 def __init__(self): 127 self._module = None 128 129 class Node(AttributeUser): 130 131 "Abstract base class for ast nodes." 132 133 def getChildren(self): 134 pass # implemented by subclasses 135 136 def __iter__(self): 137 for n in self.getChildren(): 138 yield n 139 140 def asList(self): # for backwards compatibility 141 return self.getChildren() 142 143 def getChildNodes(self): 144 pass # implemented by subclasses 145 146 def visit(self, visitor, *args): 147 return visitor.default(self, *args) 148 149 class EmptyNode(Node): 150 pass 151 152 class Expression(Node): 153 # Expression is an artificial node class to support "eval" 154 nodes["expression"] = "Expression" 155 def __init__(self, node): 156 Node.__init__(self) 157 self.node = node 158 159 def getChildren(self): 160 return self.node, 161 162 def getChildNodes(self): 163 return self.node, 164 165 def __repr__(self): 166 return "Expression(%r)" % (self.node,) 167 168 def __str__(self): 169 return str(self.node) 170 171 def visit(self, visitor, *args): 172 return visitor.visitExpression(self, *args) 173 174 class Add(Node, OperatorUser): 175 def __init__(self, leftright, lineno=None): 176 Node.__init__(self) 177 OperatorUser.__init__(self) 178 self.left = leftright[0] 179 self.right = leftright[1] 180 self.lineno = lineno 181 182 def getChildren(self): 183 return self.left, self.right 184 185 def getChildNodes(self): 186 return self.left, self.right 187 188 def __repr__(self): 189 return "Add((%r, %r))" % (self.left, self.right) 190 191 def __str__(self): 192 return "(%s + %s)" % (self.left, self.right) 193 194 def visit(self, visitor, *args): 195 return visitor.visitAdd(self, *args) 196 197 class And(Node): 198 def __init__(self, nodes, lineno=None): 199 Node.__init__(self) 200 self.nodes = nodes 201 self.lineno = lineno 202 203 def getChildren(self): 204 return tuple(flatten(self.nodes)) 205 206 def getChildNodes(self): 207 nodelist = [] 208 nodelist.extend(flatten_nodes(self.nodes)) 209 return tuple(nodelist) 210 211 def __repr__(self): 212 return "And(%r)" % (self.nodes,) 213 214 def __str__(self): 215 return "(%s)" % " and ".join(map(str, self.nodes)) 216 217 def visit(self, visitor, *args): 218 return visitor.visitAnd(self, *args) 219 220 class AssAttr(Node, AttributeAccessor): 221 def __init__(self, expr, attrname, flags, lineno=None): 222 Node.__init__(self) 223 AttributeAccessor.__init__(self) 224 self.expr = expr 225 self.attrname = attrname 226 self.flags = flags 227 self.lineno = lineno 228 229 # Additional annotations. 230 231 self._expr = None 232 233 def getChildren(self): 234 return self.expr, self.attrname, self.flags 235 236 def getChildNodes(self): 237 return self.expr, 238 239 def __repr__(self): 240 return "AssAttr(%r, %r, %r)" % (self.expr, self.attrname, self.flags) 241 242 def __str__(self): 243 if self.flags == "OP_DELETE": 244 return "del %s.%s" % (self.expr, self.attrname) 245 else: 246 return "%s.%s" % (self.expr, self.attrname) 247 248 def visit(self, visitor, *args): 249 return visitor.visitAssAttr(self, *args) 250 251 class AssList(Node): 252 def __init__(self, nodes, lineno=None): 253 Node.__init__(self) 254 self.nodes = nodes 255 self.lineno = lineno 256 257 def getChildren(self): 258 return tuple(flatten(self.nodes)) 259 260 def getChildNodes(self): 261 nodelist = [] 262 nodelist.extend(flatten_nodes(self.nodes)) 263 return tuple(nodelist) 264 265 def __repr__(self): 266 return "AssList(%r)" % (self.nodes,) 267 268 def __str__(self): 269 nodes = flatten_assignment(self) 270 if nodes and is_deletion(nodes[0]): 271 return "; ".join(map(str, self.nodes)) 272 else: 273 return "[%s]" % ", ".join(map(str, self.nodes)) 274 275 def visit(self, visitor, *args): 276 return visitor.visitAssList(self, *args) 277 278 class AssName(Node, AttributeAccessor): 279 def __init__(self, name, flags, lineno=None): 280 Node.__init__(self) 281 AttributeAccessor.__init__(self) 282 self.name = name 283 self.flags = flags 284 self.lineno = lineno 285 286 def getChildren(self): 287 return self.name, self.flags 288 289 def getChildNodes(self): 290 return () 291 292 def __repr__(self): 293 return "AssName(%r, %r)" % (self.name, self.flags) 294 295 def __str__(self): 296 if self.flags == "OP_DELETE": 297 return "del %s" % self.name 298 else: 299 return str(self.name) 300 301 def visit(self, visitor, *args): 302 return visitor.visitAssName(self, *args) 303 304 class AssTuple(Node): 305 def __init__(self, nodes, lineno=None): 306 Node.__init__(self) 307 self.nodes = nodes 308 self.lineno = lineno 309 310 def getChildren(self): 311 return tuple(flatten(self.nodes)) 312 313 def getChildNodes(self): 314 nodelist = [] 315 nodelist.extend(flatten_nodes(self.nodes)) 316 return tuple(nodelist) 317 318 def __repr__(self): 319 return "AssTuple(%r)" % (self.nodes,) 320 321 def __str__(self): 322 nodes = flatten_assignment(self) 323 if nodes and is_deletion(nodes[0]): 324 return "; ".join(map(str, self.nodes)) 325 else: 326 return "(%s)" % ", ".join(map(str, self.nodes)) 327 328 def visit(self, visitor, *args): 329 return visitor.visitAssTuple(self, *args) 330 331 class Assert(Node): 332 def __init__(self, test, fail, lineno=None): 333 Node.__init__(self) 334 self.test = test 335 self.fail = fail 336 self.lineno = lineno 337 338 def getChildren(self): 339 children = [] 340 children.append(self.test) 341 children.append(self.fail) 342 return tuple(children) 343 344 def getChildNodes(self): 345 nodelist = [] 346 nodelist.append(self.test) 347 if self.fail is not None: 348 nodelist.append(self.fail) 349 return tuple(nodelist) 350 351 def __repr__(self): 352 return "Assert(%r, %r)" % (self.test, self.fail) 353 354 def __str__(self): 355 return "assert %s%s" % (self.test, self.fail and ", %s" % self.fail or "") 356 357 def visit(self, visitor, *args): 358 return visitor.visitAssert(self, *args) 359 360 class Assign(Node): 361 def __init__(self, nodes, expr, lineno=None): 362 Node.__init__(self) 363 self.nodes = nodes 364 self.expr = expr 365 self.lineno = lineno 366 367 def getChildren(self): 368 children = [] 369 children.extend(flatten(self.nodes)) 370 children.append(self.expr) 371 return tuple(children) 372 373 def getChildNodes(self): 374 nodelist = [] 375 nodelist.extend(flatten_nodes(self.nodes)) 376 nodelist.append(self.expr) 377 return tuple(nodelist) 378 379 def __repr__(self): 380 return "Assign(%r, %r)" % (self.nodes, self.expr) 381 382 def __str__(self): 383 return "%s = %s" % (", ".join(map(str, self.nodes)), self.expr) 384 385 def visit(self, visitor, *args): 386 return visitor.visitAssign(self, *args) 387 388 class AugAssign(Node, OperatorUser): 389 def __init__(self, node, op, expr, lineno=None): 390 Node.__init__(self) 391 OperatorUser.__init__(self) 392 self.node = node 393 self.op = op 394 self.expr = expr 395 self.lineno = lineno 396 397 def getChildren(self): 398 return self.node, self.op, self.expr 399 400 def getChildNodes(self): 401 return self.node, self.expr 402 403 def __repr__(self): 404 return "AugAssign(%r, %r, %r)" % (self.node, self.op, self.expr) 405 406 def __str__(self): 407 return "%s %s %s" % (self.node, self.op, self.expr) 408 409 def visit(self, visitor, *args): 410 return visitor.visitAugAssign(self, *args) 411 412 class Backquote(Node): 413 def __init__(self, expr, lineno=None): 414 Node.__init__(self) 415 self.expr = expr 416 self.lineno = lineno 417 418 def getChildren(self): 419 return self.expr, 420 421 def getChildNodes(self): 422 return self.expr, 423 424 def __repr__(self): 425 return "Backquote(%r)" % (self.expr,) 426 427 def __str__(self): 428 return "`%s`" % self.expr 429 430 def visit(self, visitor, *args): 431 return visitor.visitBackquote(self, *args) 432 433 class Bitand(Node, OperatorUser): 434 def __init__(self, nodes, lineno=None): 435 Node.__init__(self) 436 OperatorUser.__init__(self) 437 self.nodes = nodes 438 self.lineno = lineno 439 440 def getChildren(self): 441 return tuple(flatten(self.nodes)) 442 443 def getChildNodes(self): 444 nodelist = [] 445 nodelist.extend(flatten_nodes(self.nodes)) 446 return tuple(nodelist) 447 448 def __repr__(self): 449 return "Bitand(%r)" % (self.nodes,) 450 451 def __str__(self): 452 return "(%s)" % " & ".join(map(str, self.nodes)) 453 454 def visit(self, visitor, *args): 455 return visitor.visitBitand(self, *args) 456 457 class Bitor(Node, OperatorUser): 458 def __init__(self, nodes, lineno=None): 459 Node.__init__(self) 460 OperatorUser.__init__(self) 461 self.nodes = nodes 462 self.lineno = lineno 463 464 def getChildren(self): 465 return tuple(flatten(self.nodes)) 466 467 def getChildNodes(self): 468 nodelist = [] 469 nodelist.extend(flatten_nodes(self.nodes)) 470 return tuple(nodelist) 471 472 def __repr__(self): 473 return "Bitor(%r)" % (self.nodes,) 474 475 def __str__(self): 476 return "(%s)" % " | ".join(map(str, self.nodes)) 477 478 def visit(self, visitor, *args): 479 return visitor.visitBitor(self, *args) 480 481 class Bitxor(Node, OperatorUser): 482 def __init__(self, nodes, lineno=None): 483 Node.__init__(self) 484 OperatorUser.__init__(self) 485 self.nodes = nodes 486 self.lineno = lineno 487 488 def getChildren(self): 489 return tuple(flatten(self.nodes)) 490 491 def getChildNodes(self): 492 nodelist = [] 493 nodelist.extend(flatten_nodes(self.nodes)) 494 return tuple(nodelist) 495 496 def __repr__(self): 497 return "Bitxor(%r)" % (self.nodes,) 498 499 def __str__(self): 500 return "(%s)" % " ^ ".join(map(str, self.nodes)) 501 502 def visit(self, visitor, *args): 503 return visitor.visitBitxor(self, *args) 504 505 class Break(Node): 506 def __init__(self, lineno=None): 507 Node.__init__(self) 508 self.lineno = lineno 509 510 def getChildren(self): 511 return () 512 513 def getChildNodes(self): 514 return () 515 516 def __repr__(self): 517 return "Break()" 518 519 def __str__(self): 520 return "break" 521 522 def visit(self, visitor, *args): 523 return visitor.visitBreak(self, *args) 524 525 class CallFunc(Node): 526 def __init__(self, node, args, star_args = None, dstar_args = None, lineno=None): 527 Node.__init__(self) 528 self.node = node 529 self.args = args 530 self.star_args = star_args 531 self.dstar_args = dstar_args 532 self.lineno = lineno 533 534 def getChildren(self): 535 children = [] 536 children.append(self.node) 537 children.extend(flatten(self.args)) 538 children.append(self.star_args) 539 children.append(self.dstar_args) 540 return tuple(children) 541 542 def getChildNodes(self): 543 nodelist = [] 544 nodelist.append(self.node) 545 nodelist.extend(flatten_nodes(self.args)) 546 if self.star_args is not None: 547 nodelist.append(self.star_args) 548 if self.dstar_args is not None: 549 nodelist.append(self.dstar_args) 550 return tuple(nodelist) 551 552 def __repr__(self): 553 args = [] 554 if self.dstar_args: 555 args.insert(0, repr(self.dstar_args)) 556 if args or self.star_args: 557 args.insert(0, repr(self.star_args)) 558 return "CallFunc(%r, %r%s)" % (self.node, self.args, args and (", %s" % ", ".join(args)) or "") 559 560 def __str__(self): 561 star_args = self.star_args and ["*%s" % self.star_args] or [] 562 dstar_args = self.dstar_args and ["**%s" % self.dstar_args] or [] 563 return "%s(%s)" % (self.node, ", ".join(map(str, self.args + star_args + dstar_args))) 564 565 def visit(self, visitor, *args): 566 return visitor.visitCallFunc(self, *args) 567 568 class Class(Node): 569 def __init__(self, name, bases, doc, code, decorators = None, lineno=None): 570 Node.__init__(self) 571 self.name = name 572 self.bases = bases 573 self.doc = doc 574 self.code = code 575 self.decorators = decorators 576 self.lineno = lineno 577 578 def getChildren(self): 579 children = [] 580 children.append(self.name) 581 children.extend(flatten(self.bases)) 582 children.append(self.doc) 583 children.append(self.code) 584 children.append(self.decorators) 585 return tuple(children) 586 587 def getChildNodes(self): 588 nodelist = [] 589 nodelist.extend(flatten_nodes(self.bases)) 590 nodelist.append(self.code) 591 if self.decorators is not None: 592 nodelist.append(self.decorators) 593 return tuple(nodelist) 594 595 def __repr__(self): 596 return "Class(%r, %r, %r, %r, %r)" % (self.name, self.bases, self.doc, self.code, self.decorators) 597 598 def __str__(self): 599 return "%sclass %s%s:%s%s\n" % ( 600 self.decorators and "%s\n" % "\n".join([("@%s" % decorator) for decorator in self.decorators]) or "", 601 self.name, 602 self.bases and "(%s)" % ", ".join(map(str, self.bases)) or "", 603 self.doc and "\n\t" + docstring(self.doc) or "", 604 indent("\n%s" % self.code) 605 ) 606 607 def visit(self, visitor, *args): 608 return visitor.visitClass(self, *args) 609 610 class Compare(Node, OperatorUser): 611 def __init__(self, expr, ops, lineno=None): 612 Node.__init__(self) 613 OperatorUser.__init__(self) 614 self.expr = expr 615 self.ops = ops 616 self.lineno = lineno 617 618 def getChildren(self): 619 children = [] 620 children.append(self.expr) 621 children.extend(flatten(self.ops)) 622 return tuple(children) 623 624 def getChildNodes(self): 625 nodelist = [] 626 nodelist.append(self.expr) 627 nodelist.extend(flatten_nodes(self.ops)) 628 return tuple(nodelist) 629 630 def __repr__(self): 631 return "Compare(%r, %r)" % (self.expr, self.ops) 632 633 def __str__(self): 634 return "%s %s" % (self.expr, " ".join([("%s %s" % op) for op in self.ops])) 635 636 def visit(self, visitor, *args): 637 return visitor.visitCompare(self, *args) 638 639 class Const(Node): 640 def __init__(self, value, lineno=None): 641 Node.__init__(self) 642 self.value = value 643 self.lineno = lineno 644 645 def getChildren(self): 646 return self.value, 647 648 def getChildNodes(self): 649 return () 650 651 def __repr__(self): 652 return "Const(%r)" % (self.value,) 653 654 def __str__(self): 655 return repr(self.value) 656 657 def visit(self, visitor, *args): 658 return visitor.visitConst(self, *args) 659 660 class Continue(Node): 661 def __init__(self, lineno=None): 662 Node.__init__(self) 663 self.lineno = lineno 664 665 def getChildren(self): 666 return () 667 668 def getChildNodes(self): 669 return () 670 671 def __repr__(self): 672 return "Continue()" 673 674 def __str__(self): 675 return "continue" 676 677 def visit(self, visitor, *args): 678 return visitor.visitContinue(self, *args) 679 680 class Decorators(Node): 681 def __init__(self, nodes, lineno=None): 682 Node.__init__(self) 683 self.nodes = nodes 684 self.lineno = lineno 685 686 def getChildren(self): 687 return tuple(flatten(self.nodes)) 688 689 def getChildNodes(self): 690 nodelist = [] 691 nodelist.extend(flatten_nodes(self.nodes)) 692 return tuple(nodelist) 693 694 def __repr__(self): 695 return "Decorators(%r)" % (self.nodes,) 696 697 def __str__(self): 698 return "\n".join([("@%s" % node) for node in self.nodes]) 699 700 def visit(self, visitor, *args): 701 return visitor.visitDecorators(self, *args) 702 703 class Dict(Node): 704 def __init__(self, items, lineno=None): 705 Node.__init__(self) 706 self.items = items 707 self.lineno = lineno 708 709 def getChildren(self): 710 return tuple(flatten(self.items)) 711 712 def getChildNodes(self): 713 nodelist = [] 714 nodelist.extend(flatten_nodes(self.items)) 715 return tuple(nodelist) 716 717 def __repr__(self): 718 return "Dict(%r)" % (self.items,) 719 720 def __str__(self): 721 return "{%s}" % ", ".join([("%s : %s" % (key, value)) for (key, value) in self.items]) 722 723 def visit(self, visitor, *args): 724 return visitor.visitDict(self, *args) 725 726 class Discard(Node): 727 def __init__(self, expr, lineno=None): 728 Node.__init__(self) 729 self.expr = expr 730 self.lineno = lineno 731 732 def getChildren(self): 733 return self.expr, 734 735 def getChildNodes(self): 736 return self.expr, 737 738 def __repr__(self): 739 return "Discard(%r)" % (self.expr,) 740 741 def __str__(self): 742 return str(self.expr) 743 744 def visit(self, visitor, *args): 745 return visitor.visitDiscard(self, *args) 746 747 class Div(Node, OperatorUser): 748 def __init__(self, leftright, lineno=None): 749 Node.__init__(self) 750 OperatorUser.__init__(self) 751 self.left = leftright[0] 752 self.right = leftright[1] 753 self.lineno = lineno 754 755 def getChildren(self): 756 return self.left, self.right 757 758 def getChildNodes(self): 759 return self.left, self.right 760 761 def __repr__(self): 762 return "Div((%r, %r))" % (self.left, self.right) 763 764 def __str__(self): 765 return "(%s / %s)" % (self.left, self.right) 766 767 def visit(self, visitor, *args): 768 return visitor.visitDiv(self, *args) 769 770 class Ellipsis(Node): 771 def __init__(self, lineno=None): 772 Node.__init__(self) 773 self.lineno = lineno 774 775 def getChildren(self): 776 return () 777 778 def getChildNodes(self): 779 return () 780 781 def __repr__(self): 782 return "Ellipsis()" 783 784 def __str__(self): 785 return "..." 786 787 def visit(self, visitor, *args): 788 return visitor.visitEllipsis(self, *args) 789 790 class Exec(Node): 791 def __init__(self, expr, locals, globals, lineno=None): 792 Node.__init__(self) 793 self.expr = expr 794 self.locals = locals 795 self.globals = globals 796 self.lineno = lineno 797 798 def getChildren(self): 799 children = [] 800 children.append(self.expr) 801 children.append(self.locals) 802 children.append(self.globals) 803 return tuple(children) 804 805 def getChildNodes(self): 806 nodelist = [] 807 nodelist.append(self.expr) 808 if self.locals is not None: 809 nodelist.append(self.locals) 810 if self.globals is not None: 811 nodelist.append(self.globals) 812 return tuple(nodelist) 813 814 def __repr__(self): 815 return "Exec(%r, %r, %r)" % (self.expr, self.locals, self.globals) 816 817 def __str__(self): 818 return "exec %s%s%s" % (self.expr, self.locals and "in %s" % self.locals or "", 819 self.globals and ", %s" % self.globals or "") 820 821 def visit(self, visitor, *args): 822 return visitor.visitExec(self, *args) 823 824 class FloorDiv(Node, OperatorUser): 825 def __init__(self, leftright, lineno=None): 826 Node.__init__(self) 827 OperatorUser.__init__(self) 828 self.left = leftright[0] 829 self.right = leftright[1] 830 self.lineno = lineno 831 832 def getChildren(self): 833 return self.left, self.right 834 835 def getChildNodes(self): 836 return self.left, self.right 837 838 def __repr__(self): 839 return "FloorDiv((%r, %r))" % (self.left, self.right) 840 841 def __str__(self): 842 return "(%s // %s)" % (self.left, self.right) 843 844 def visit(self, visitor, *args): 845 return visitor.visitFloorDiv(self, *args) 846 847 class For(Node): 848 def __init__(self, assign, list, body, else_, lineno=None): 849 Node.__init__(self) 850 self.assign = assign 851 self.list = list 852 self.body = body 853 self.else_ = else_ 854 self.lineno = lineno 855 856 def getChildren(self): 857 children = [] 858 children.append(self.assign) 859 children.append(self.list) 860 children.append(self.body) 861 children.append(self.else_) 862 return tuple(children) 863 864 def getChildNodes(self): 865 nodelist = [] 866 nodelist.append(self.assign) 867 nodelist.append(self.list) 868 nodelist.append(self.body) 869 if self.else_ is not None: 870 nodelist.append(self.else_) 871 return tuple(nodelist) 872 873 def __repr__(self): 874 return "For(%r, %r, %r, %r)" % (self.assign, self.list, self.body, self.else_) 875 876 def __str__(self): 877 return "for %s in %s:%s%s" % ( 878 self.assign, self.list, 879 indent("\n%s" % self.body), 880 self.else_ and "\nelse:%s" % indent("\n%s" % self.else_) or "" 881 ) 882 883 def visit(self, visitor, *args): 884 return visitor.visitFor(self, *args) 885 886 class From(Node): 887 def __init__(self, modname, names, level, lineno=None): 888 Node.__init__(self) 889 self.modname = modname 890 self.names = names 891 self.level = level 892 self.lineno = lineno 893 894 def getChildren(self): 895 return self.modname, self.names, self.level 896 897 def getChildNodes(self): 898 return () 899 900 def __repr__(self): 901 return "From(%r, %r, %r)" % (self.modname, self.names, self.level) 902 903 def __str__(self): 904 return "from %s import %s" % (self.modname, 905 ", ".join([(alias and "%s as %s" % (name, alias) or name) for (name, alias) in self.names])) 906 907 def visit(self, visitor, *args): 908 return visitor.visitFrom(self, *args) 909 910 class Function(Node): 911 def __init__(self, decorators, name, argnames, defaults, flags, doc, code, lineno=None): 912 Node.__init__(self) 913 self.decorators = decorators 914 self.name = name 915 self.argnames = argnames 916 self.defaults = defaults 917 self.flags = flags 918 self.doc = doc 919 self.code = code 920 self.lineno = lineno 921 self.varargs = self.kwargs = None 922 if flags & CO_VARARGS: 923 self.varargs = 1 924 if flags & CO_VARKEYWORDS: 925 self.kwargs = 1 926 927 def getChildren(self): 928 children = [] 929 children.append(self.decorators) 930 children.append(self.name) 931 children.append(self.argnames) 932 children.extend(flatten(self.defaults)) 933 children.append(self.flags) 934 children.append(self.doc) 935 children.append(self.code) 936 return tuple(children) 937 938 def getChildNodes(self): 939 nodelist = [] 940 if self.decorators is not None: 941 nodelist.append(self.decorators) 942 nodelist.extend(flatten_nodes(self.defaults)) 943 nodelist.append(self.code) 944 return tuple(nodelist) 945 946 def __repr__(self): 947 return "Function(%r, %r, %r, %r, %r, %r, %r)" % (self.decorators, self.name, self.argnames, self.defaults, self.flags, self.doc, self.code) 948 949 def __str__(self): 950 parameters = decode_function(self) 951 952 return "%sdef %s(%s):%s%s\n" % ( 953 self.decorators and "%s\n" % "\n".join([("@%s" % decorator) for decorator in self.decorators]) or "", 954 self.name, 955 ", ".join(parameters), 956 self.doc and "\n\n\t%s\n" % docstring(self.doc) or "", 957 indent("\n%s" % self.code) 958 ) 959 960 def visit(self, visitor, *args): 961 return visitor.visitFunction(self, *args) 962 963 class GenExpr(Node): 964 def __init__(self, code, lineno=None): 965 Node.__init__(self) 966 self.code = code 967 self.lineno = lineno 968 self.argnames = ['.0'] 969 self.varargs = self.kwargs = None 970 971 def getChildren(self): 972 return self.code, 973 974 def getChildNodes(self): 975 return self.code, 976 977 def __repr__(self): 978 return "GenExpr(%r)" % (self.code,) 979 980 def __str__(self): 981 return str(self.code) 982 983 def visit(self, visitor, *args): 984 return visitor.visitGenExpr(self, *args) 985 986 class GenExprFor(Node): 987 def __init__(self, assign, iter, ifs, lineno=None): 988 Node.__init__(self) 989 self.assign = assign 990 self.iter = iter 991 self.ifs = ifs 992 self.lineno = lineno 993 self.is_outmost = False 994 995 def getChildren(self): 996 children = [] 997 children.append(self.assign) 998 children.append(self.iter) 999 children.extend(flatten(self.ifs)) 1000 return tuple(children) 1001 1002 def getChildNodes(self): 1003 nodelist = [] 1004 nodelist.append(self.assign) 1005 nodelist.append(self.iter) 1006 nodelist.extend(flatten_nodes(self.ifs)) 1007 return tuple(nodelist) 1008 1009 def __repr__(self): 1010 return "GenExprFor(%r, %r, %r)" % (self.assign, self.iter, self.ifs) 1011 1012 def __str__(self): 1013 return "for %s in %s%s" % ( 1014 self.assign, self.iter, 1015 self.ifs and " ".join(map(str, self.ifs)) or "" 1016 ) 1017 1018 def visit(self, visitor, *args): 1019 return visitor.visitGenExprFor(self, *args) 1020 1021 class GenExprIf(Node): 1022 def __init__(self, test, lineno=None): 1023 Node.__init__(self) 1024 self.test = test 1025 self.lineno = lineno 1026 1027 def getChildren(self): 1028 return self.test, 1029 1030 def getChildNodes(self): 1031 return self.test, 1032 1033 def __repr__(self): 1034 return "GenExprIf(%r)" % (self.test,) 1035 1036 def __str__(self): 1037 return "if %s" % self.test 1038 1039 def visit(self, visitor, *args): 1040 return visitor.visitGenExprIf(self, *args) 1041 1042 class GenExprInner(Node): 1043 def __init__(self, expr, quals, lineno=None): 1044 Node.__init__(self) 1045 self.expr = expr 1046 self.quals = quals 1047 self.lineno = lineno 1048 1049 def getChildren(self): 1050 children = [] 1051 children.append(self.expr) 1052 children.extend(flatten(self.quals)) 1053 return tuple(children) 1054 1055 def getChildNodes(self): 1056 nodelist = [] 1057 nodelist.append(self.expr) 1058 nodelist.extend(flatten_nodes(self.quals)) 1059 return tuple(nodelist) 1060 1061 def __repr__(self): 1062 return "GenExprInner(%r, %r)" % (self.expr, self.quals) 1063 1064 def __str__(self): 1065 return "%s %s" % (self.expr, " ".join(map(str, self.quals))) 1066 1067 def visit(self, visitor, *args): 1068 return visitor.visitGenExprInner(self, *args) 1069 1070 class Getattr(Node, AttributeAccessor): 1071 def __init__(self, expr, attrname, lineno=None): 1072 Node.__init__(self) 1073 AttributeAccessor.__init__(self) 1074 self.expr = expr 1075 self.attrname = attrname 1076 self.lineno = lineno 1077 1078 # Additional annotations. 1079 1080 self._expr = None 1081 1082 def getChildren(self): 1083 return self.expr, self.attrname 1084 1085 def getChildNodes(self): 1086 return self.expr, 1087 1088 def __repr__(self): 1089 return "Getattr(%r, %r)" % (self.expr, self.attrname) 1090 1091 def __str__(self): 1092 return "%s.%s" % (self.expr, self.attrname) 1093 1094 def visit(self, visitor, *args): 1095 return visitor.visitGetattr(self, *args) 1096 1097 class Global(Node): 1098 def __init__(self, names, lineno=None): 1099 Node.__init__(self) 1100 self.names = names 1101 self.lineno = lineno 1102 1103 def getChildren(self): 1104 return self.names, 1105 1106 def getChildNodes(self): 1107 return () 1108 1109 def __repr__(self): 1110 return "Global(%r)" % (self.names,) 1111 1112 def __str__(self): 1113 return "global %s" % ", ".join(map(str, self.names)) 1114 1115 def visit(self, visitor, *args): 1116 return visitor.visitGlobal(self, *args) 1117 1118 class If(Node): 1119 def __init__(self, tests, else_, lineno=None): 1120 Node.__init__(self) 1121 self.tests = tests 1122 self.else_ = else_ 1123 self.lineno = lineno 1124 1125 def getChildren(self): 1126 children = [] 1127 children.extend(flatten(self.tests)) 1128 children.append(self.else_) 1129 return tuple(children) 1130 1131 def getChildNodes(self): 1132 nodelist = [] 1133 nodelist.extend(flatten_nodes(self.tests)) 1134 if self.else_ is not None: 1135 nodelist.append(self.else_) 1136 return tuple(nodelist) 1137 1138 def __repr__(self): 1139 return "If(%r, %r)" % (self.tests, self.else_) 1140 1141 def __str__(self): 1142 tests = [("%sif %s:%s" % (i > 0 and "el" or "", test, indent("\n%s" % body))) for (i, (test, body)) in enumerate(self.tests)] 1143 return "%s%s" % ( 1144 "\n".join(tests), 1145 self.else_ and "\nelse:%s" % indent("\n%s" % self.else_) or "" 1146 ) 1147 1148 def visit(self, visitor, *args): 1149 return visitor.visitIf(self, *args) 1150 1151 class IfExp(Node): 1152 def __init__(self, test, then, else_, lineno=None): 1153 Node.__init__(self) 1154 self.test = test 1155 self.then = then 1156 self.else_ = else_ 1157 self.lineno = lineno 1158 1159 def getChildren(self): 1160 return self.test, self.then, self.else_ 1161 1162 def getChildNodes(self): 1163 return self.test, self.then, self.else_ 1164 1165 def __repr__(self): 1166 return "IfExp(%r, %r, %r)" % (self.test, self.then, self.else_) 1167 1168 def __str__(self): 1169 return "%s if %s else %s" % (self.then, self.test, self.else_) 1170 1171 def visit(self, visitor, *args): 1172 return visitor.visitIfExp(self, *args) 1173 1174 class Import(Node): 1175 def __init__(self, names, lineno=None): 1176 Node.__init__(self) 1177 self.names = names 1178 self.lineno = lineno 1179 1180 def getChildren(self): 1181 return self.names, 1182 1183 def getChildNodes(self): 1184 return () 1185 1186 def __repr__(self): 1187 return "Import(%r)" % (self.names,) 1188 1189 def __str__(self): 1190 return "import %s" % ( 1191 ", ".join([(alias and "%s as %s" % (name, alias) or name) for (name, alias) in self.names])) 1192 1193 def visit(self, visitor, *args): 1194 return visitor.visitImport(self, *args) 1195 1196 class Invert(Node, OperatorUser): 1197 def __init__(self, expr, lineno=None): 1198 Node.__init__(self) 1199 OperatorUser.__init__(self) 1200 self.expr = expr 1201 self.lineno = lineno 1202 1203 def getChildren(self): 1204 return self.expr, 1205 1206 def getChildNodes(self): 1207 return self.expr, 1208 1209 def __repr__(self): 1210 return "Invert(%r)" % (self.expr,) 1211 1212 def __str__(self): 1213 return "~%s" % self.expr 1214 1215 def visit(self, visitor, *args): 1216 return visitor.visitInvert(self, *args) 1217 1218 class Keyword(Node): 1219 def __init__(self, name, expr, lineno=None): 1220 Node.__init__(self) 1221 self.name = name 1222 self.expr = expr 1223 self.lineno = lineno 1224 1225 def getChildren(self): 1226 return self.name, self.expr 1227 1228 def getChildNodes(self): 1229 return self.expr, 1230 1231 def __repr__(self): 1232 return "Keyword(%r, %r)" % (self.name, self.expr) 1233 1234 def __str__(self): 1235 return "%s=%s" % (self.name, self.expr) 1236 1237 def visit(self, visitor, *args): 1238 return visitor.visitKeyword(self, *args) 1239 1240 class Lambda(Node): 1241 def __init__(self, argnames, defaults, flags, code, lineno=None): 1242 Node.__init__(self) 1243 self.argnames = argnames 1244 self.defaults = defaults 1245 self.flags = flags 1246 self.code = code 1247 self.lineno = lineno 1248 self.varargs = self.kwargs = None 1249 if flags & CO_VARARGS: 1250 self.varargs = 1 1251 if flags & CO_VARKEYWORDS: 1252 self.kwargs = 1 1253 1254 def getChildren(self): 1255 children = [] 1256 children.append(self.argnames) 1257 children.extend(flatten(self.defaults)) 1258 children.append(self.flags) 1259 children.append(self.code) 1260 return tuple(children) 1261 1262 def getChildNodes(self): 1263 nodelist = [] 1264 nodelist.extend(flatten_nodes(self.defaults)) 1265 nodelist.append(self.code) 1266 return tuple(nodelist) 1267 1268 def __repr__(self): 1269 return "Lambda(%r, %r, %r, %r)" % (self.argnames, self.defaults, self.flags, self.code) 1270 1271 def __str__(self): 1272 parameters = decode_function(self) 1273 return "lambda %s: %s" % (", ".join(parameters), self.code) 1274 1275 def visit(self, visitor, *args): 1276 return visitor.visitLambda(self, *args) 1277 1278 class LeftShift(Node, OperatorUser): 1279 def __init__(self, leftright, lineno=None): 1280 Node.__init__(self) 1281 OperatorUser.__init__(self) 1282 self.left = leftright[0] 1283 self.right = leftright[1] 1284 self.lineno = lineno 1285 1286 def getChildren(self): 1287 return self.left, self.right 1288 1289 def getChildNodes(self): 1290 return self.left, self.right 1291 1292 def __repr__(self): 1293 return "LeftShift((%r, %r))" % (self.left, self.right) 1294 1295 def __str__(self): 1296 return "(%s << %s)" % (self.left, self.right) 1297 1298 def visit(self, visitor, *args): 1299 return visitor.visitLeftShift(self, *args) 1300 1301 class List(Node): 1302 def __init__(self, nodes, lineno=None): 1303 Node.__init__(self) 1304 self.nodes = nodes 1305 self.lineno = lineno 1306 1307 def getChildren(self): 1308 return tuple(flatten(self.nodes)) 1309 1310 def getChildNodes(self): 1311 nodelist = [] 1312 nodelist.extend(flatten_nodes(self.nodes)) 1313 return tuple(nodelist) 1314 1315 def __repr__(self): 1316 return "List(%r)" % (self.nodes,) 1317 1318 def __str__(self): 1319 return "[%s]" % ", ".join(map(str, self.nodes)) 1320 1321 def visit(self, visitor, *args): 1322 return visitor.visitList(self, *args) 1323 1324 class ListComp(Node): 1325 def __init__(self, expr, quals, lineno=None): 1326 Node.__init__(self) 1327 self.expr = expr 1328 self.quals = quals 1329 self.lineno = lineno 1330 1331 def getChildren(self): 1332 children = [] 1333 children.append(self.expr) 1334 children.extend(flatten(self.quals)) 1335 return tuple(children) 1336 1337 def getChildNodes(self): 1338 nodelist = [] 1339 nodelist.append(self.expr) 1340 nodelist.extend(flatten_nodes(self.quals)) 1341 return tuple(nodelist) 1342 1343 def __repr__(self): 1344 return "ListComp(%r, %r)" % (self.expr, self.quals) 1345 1346 def __str__(self): 1347 return "[%s %s]" % (self.expr, " ".join(map(str, self.quals))) 1348 1349 def visit(self, visitor, *args): 1350 return visitor.visitListComp(self, *args) 1351 1352 class ListCompFor(Node): 1353 def __init__(self, assign, list, ifs, lineno=None): 1354 Node.__init__(self) 1355 self.assign = assign 1356 self.list = list 1357 self.ifs = ifs 1358 self.lineno = lineno 1359 1360 def getChildren(self): 1361 children = [] 1362 children.append(self.assign) 1363 children.append(self.list) 1364 children.extend(flatten(self.ifs)) 1365 return tuple(children) 1366 1367 def getChildNodes(self): 1368 nodelist = [] 1369 nodelist.append(self.assign) 1370 nodelist.append(self.list) 1371 nodelist.extend(flatten_nodes(self.ifs)) 1372 return tuple(nodelist) 1373 1374 def __repr__(self): 1375 return "ListCompFor(%r, %r, %r)" % (self.assign, self.list, self.ifs) 1376 1377 def __str__(self): 1378 return "for %s in %s%s" % ( 1379 self.assign, self.list, 1380 self.ifs and " ".join(map(str, self.ifs)) or "" 1381 ) 1382 1383 def visit(self, visitor, *args): 1384 return visitor.visitListCompFor(self, *args) 1385 1386 class ListCompIf(Node): 1387 def __init__(self, test, lineno=None): 1388 Node.__init__(self) 1389 self.test = test 1390 self.lineno = lineno 1391 1392 def getChildren(self): 1393 return self.test, 1394 1395 def getChildNodes(self): 1396 return self.test, 1397 1398 def __repr__(self): 1399 return "ListCompIf(%r)" % (self.test,) 1400 1401 def __str__(self): 1402 return " if %s" % self.test 1403 1404 def visit(self, visitor, *args): 1405 return visitor.visitListCompIf(self, *args) 1406 1407 class Mod(Node, OperatorUser): 1408 def __init__(self, leftright, lineno=None): 1409 Node.__init__(self) 1410 OperatorUser.__init__(self) 1411 self.left = leftright[0] 1412 self.right = leftright[1] 1413 self.lineno = lineno 1414 1415 def getChildren(self): 1416 return self.left, self.right 1417 1418 def getChildNodes(self): 1419 return self.left, self.right 1420 1421 def __repr__(self): 1422 return "Mod((%r, %r))" % (self.left, self.right) 1423 1424 def __str__(self): 1425 return "(%s %% %s)" % (self.left, self.right) 1426 1427 def visit(self, visitor, *args): 1428 return visitor.visitMod(self, *args) 1429 1430 class Module(Node): 1431 def __init__(self, doc, node, lineno=None): 1432 Node.__init__(self) 1433 self.doc = doc 1434 self.node = node 1435 self.lineno = lineno 1436 1437 def getChildren(self): 1438 return self.doc, self.node 1439 1440 def getChildNodes(self): 1441 return self.node, 1442 1443 def __repr__(self): 1444 return "Module(%r, %r)" % (self.doc, self.node) 1445 1446 def __str__(self): 1447 return "%s%s" % (self.doc and "%s\n\n" % docstring(self.doc) or "", self.node) 1448 1449 def visit(self, visitor, *args): 1450 return visitor.visitModule(self, *args) 1451 1452 class Mul(Node, OperatorUser): 1453 def __init__(self, leftright, lineno=None): 1454 Node.__init__(self) 1455 OperatorUser.__init__(self) 1456 self.left = leftright[0] 1457 self.right = leftright[1] 1458 self.lineno = lineno 1459 1460 def getChildren(self): 1461 return self.left, self.right 1462 1463 def getChildNodes(self): 1464 return self.left, self.right 1465 1466 def __repr__(self): 1467 return "Mul((%r, %r))" % (self.left, self.right) 1468 1469 def __str__(self): 1470 return "(%s * %s)" % (self.left, self.right) 1471 1472 def visit(self, visitor, *args): 1473 return visitor.visitMul(self, *args) 1474 1475 class Name(Node, AttributeAccessor): 1476 def __init__(self, name, lineno=None): 1477 Node.__init__(self) 1478 AttributeAccessor.__init__(self) 1479 self.name = name 1480 self.lineno = lineno 1481 1482 # Additional annotations. 1483 1484 self._scope = None 1485 1486 def getChildren(self): 1487 return self.name, 1488 1489 def getChildNodes(self): 1490 return () 1491 1492 def __repr__(self): 1493 return "Name(%r)" % (self.name,) 1494 1495 def __str__(self): 1496 return str(self.name) 1497 1498 def visit(self, visitor, *args): 1499 return visitor.visitName(self, *args) 1500 1501 class Not(Node): 1502 def __init__(self, expr, lineno=None): 1503 Node.__init__(self) 1504 self.expr = expr 1505 self.lineno = lineno 1506 1507 def getChildren(self): 1508 return self.expr, 1509 1510 def getChildNodes(self): 1511 return self.expr, 1512 1513 def __repr__(self): 1514 return "Not(%r)" % (self.expr,) 1515 1516 def __str__(self): 1517 return "not %s" % self.expr 1518 1519 def visit(self, visitor, *args): 1520 return visitor.visitNot(self, *args) 1521 1522 class Or(Node): 1523 def __init__(self, nodes, lineno=None): 1524 Node.__init__(self) 1525 self.nodes = nodes 1526 self.lineno = lineno 1527 1528 def getChildren(self): 1529 return tuple(flatten(self.nodes)) 1530 1531 def getChildNodes(self): 1532 nodelist = [] 1533 nodelist.extend(flatten_nodes(self.nodes)) 1534 return tuple(nodelist) 1535 1536 def __repr__(self): 1537 return "Or(%r)" % (self.nodes,) 1538 1539 def __str__(self): 1540 return "(%s)" % " or ".join(map(str, self.nodes)) 1541 1542 def visit(self, visitor, *args): 1543 return visitor.visitOr(self, *args) 1544 1545 class Pass(Node): 1546 def __init__(self, lineno=None): 1547 Node.__init__(self) 1548 self.lineno = lineno 1549 1550 def getChildren(self): 1551 return () 1552 1553 def getChildNodes(self): 1554 return () 1555 1556 def __repr__(self): 1557 return "Pass()" 1558 1559 def __str__(self): 1560 return "pass" 1561 1562 def visit(self, visitor, *args): 1563 return visitor.visitPass(self, *args) 1564 1565 class Power(Node, OperatorUser): 1566 def __init__(self, leftright, lineno=None): 1567 Node.__init__(self) 1568 OperatorUser.__init__(self) 1569 self.left = leftright[0] 1570 self.right = leftright[1] 1571 self.lineno = lineno 1572 1573 def getChildren(self): 1574 return self.left, self.right 1575 1576 def getChildNodes(self): 1577 return self.left, self.right 1578 1579 def __repr__(self): 1580 return "Power((%r, %r))" % (self.left, self.right) 1581 1582 def __str__(self): 1583 return "(%s ** %s)" % (self.left, self.right) 1584 1585 def visit(self, visitor, *args): 1586 return visitor.visitPower(self, *args) 1587 1588 class Print(Node): 1589 def __init__(self, nodes, dest, lineno=None): 1590 Node.__init__(self) 1591 self.nodes = nodes 1592 self.dest = dest 1593 self.lineno = lineno 1594 1595 def getChildren(self): 1596 children = [] 1597 children.extend(flatten(self.nodes)) 1598 children.append(self.dest) 1599 return tuple(children) 1600 1601 def getChildNodes(self): 1602 nodelist = [] 1603 nodelist.extend(flatten_nodes(self.nodes)) 1604 if self.dest is not None: 1605 nodelist.append(self.dest) 1606 return tuple(nodelist) 1607 1608 def __repr__(self): 1609 return "Print(%r, %r)" % (self.nodes, self.dest) 1610 1611 def __str__(self): 1612 dest = self.dest and [">>%s" % self.dest] or [] 1613 return "print %s," % ", ".join(map(str, dest + self.nodes)) 1614 1615 def visit(self, visitor, *args): 1616 return visitor.visitPrint(self, *args) 1617 1618 class Printnl(Node): 1619 def __init__(self, nodes, dest, lineno=None): 1620 Node.__init__(self) 1621 self.nodes = nodes 1622 self.dest = dest 1623 self.lineno = lineno 1624 1625 def getChildren(self): 1626 children = [] 1627 children.extend(flatten(self.nodes)) 1628 children.append(self.dest) 1629 return tuple(children) 1630 1631 def getChildNodes(self): 1632 nodelist = [] 1633 nodelist.extend(flatten_nodes(self.nodes)) 1634 if self.dest is not None: 1635 nodelist.append(self.dest) 1636 return tuple(nodelist) 1637 1638 def __repr__(self): 1639 return "Printnl(%r, %r)" % (self.nodes, self.dest) 1640 1641 def __str__(self): 1642 dest = self.dest and [">>%s" % self.dest] or [] 1643 return "print %s" % ", ".join(map(str, dest + self.nodes)) 1644 1645 def visit(self, visitor, *args): 1646 return visitor.visitPrintnl(self, *args) 1647 1648 class Raise(Node): 1649 def __init__(self, expr1, expr2, expr3, lineno=None): 1650 Node.__init__(self) 1651 self.expr1 = expr1 1652 self.expr2 = expr2 1653 self.expr3 = expr3 1654 self.lineno = lineno 1655 1656 def getChildren(self): 1657 children = [] 1658 children.append(self.expr1) 1659 children.append(self.expr2) 1660 children.append(self.expr3) 1661 return tuple(children) 1662 1663 def getChildNodes(self): 1664 nodelist = [] 1665 if self.expr1 is not None: 1666 nodelist.append(self.expr1) 1667 if self.expr2 is not None: 1668 nodelist.append(self.expr2) 1669 if self.expr3 is not None: 1670 nodelist.append(self.expr3) 1671 return tuple(nodelist) 1672 1673 def __repr__(self): 1674 return "Raise(%r, %r, %r)" % (self.expr1, self.expr2, self.expr3) 1675 1676 def __str__(self): 1677 args = self.expr1 and [self.expr1] or [] 1678 args += self.expr2 and [self.expr2] or [] 1679 args += self.expr3 and [self.expr3] or [] 1680 return "raise %s" % ", ".join(map(str, args)) 1681 1682 def visit(self, visitor, *args): 1683 return visitor.visitRaise(self, *args) 1684 1685 class Return(Node): 1686 def __init__(self, value, lineno=None): 1687 Node.__init__(self) 1688 self.value = value 1689 self.lineno = lineno 1690 1691 def getChildren(self): 1692 return self.value, 1693 1694 def getChildNodes(self): 1695 return self.value, 1696 1697 def __repr__(self): 1698 return "Return(%r)" % (self.value,) 1699 1700 def __str__(self): 1701 return "return %s" % self.value 1702 1703 def visit(self, visitor, *args): 1704 return visitor.visitReturn(self, *args) 1705 1706 class RightShift(Node, OperatorUser): 1707 def __init__(self, leftright, lineno=None): 1708 Node.__init__(self) 1709 OperatorUser.__init__(self) 1710 self.left = leftright[0] 1711 self.right = leftright[1] 1712 self.lineno = lineno 1713 1714 def getChildren(self): 1715 return self.left, self.right 1716 1717 def getChildNodes(self): 1718 return self.left, self.right 1719 1720 def __repr__(self): 1721 return "RightShift((%r, %r))" % (self.left, self.right) 1722 1723 def __str__(self): 1724 return "(%s >> %s)" % (self.left, self.right) 1725 1726 def visit(self, visitor, *args): 1727 return visitor.visitRightShift(self, *args) 1728 1729 class Slice(Node, OperatorUser): 1730 def __init__(self, expr, flags, lower, upper, lineno=None): 1731 Node.__init__(self) 1732 OperatorUser.__init__(self) 1733 self.expr = expr 1734 self.flags = flags 1735 self.lower = lower 1736 self.upper = upper 1737 self.lineno = lineno 1738 1739 def getChildren(self): 1740 children = [] 1741 children.append(self.expr) 1742 children.append(self.flags) 1743 children.append(self.lower) 1744 children.append(self.upper) 1745 return tuple(children) 1746 1747 def getChildNodes(self): 1748 nodelist = [] 1749 nodelist.append(self.expr) 1750 if self.lower is not None: 1751 nodelist.append(self.lower) 1752 if self.upper is not None: 1753 nodelist.append(self.upper) 1754 return tuple(nodelist) 1755 1756 def __repr__(self): 1757 return "Slice(%r, %r, %r, %r)" % (self.expr, self.flags, self.lower, self.upper) 1758 1759 def __str__(self): 1760 args = [] 1761 args = self.lower is not None and [self.lower] or [] 1762 args = self.upper is not None and [self.upper] or [] 1763 return "%s[%s]" % (self.expr, ":".join(map(str, args))) 1764 1765 def visit(self, visitor, *args): 1766 return visitor.visitSlice(self, *args) 1767 1768 class Sliceobj(Node): 1769 def __init__(self, nodes, lineno=None): 1770 Node.__init__(self) 1771 self.nodes = nodes 1772 self.lineno = lineno 1773 1774 def getChildren(self): 1775 return tuple(flatten(self.nodes)) 1776 1777 def getChildNodes(self): 1778 nodelist = [] 1779 nodelist.extend(flatten_nodes(self.nodes)) 1780 return tuple(nodelist) 1781 1782 def __repr__(self): 1783 return "Sliceobj(%r)" % (self.nodes,) 1784 1785 def __str__(self): 1786 return ":".join(map(str, self.nodes)) 1787 1788 def visit(self, visitor, *args): 1789 return visitor.visitSliceobj(self, *args) 1790 1791 class Stmt(Node): 1792 def __init__(self, nodes, lineno=None): 1793 Node.__init__(self) 1794 self.nodes = nodes 1795 self.lineno = lineno 1796 1797 def getChildren(self): 1798 return tuple(flatten(self.nodes)) 1799 1800 def getChildNodes(self): 1801 nodelist = [] 1802 nodelist.extend(flatten_nodes(self.nodes)) 1803 return tuple(nodelist) 1804 1805 def __repr__(self): 1806 return "Stmt(%r)" % (self.nodes,) 1807 1808 def __str__(self): 1809 return "\n".join(map(str, flatten_statement(self.nodes))) 1810 1811 def visit(self, visitor, *args): 1812 return visitor.visitStmt(self, *args) 1813 1814 class Sub(Node, OperatorUser): 1815 def __init__(self, leftright, lineno=None): 1816 Node.__init__(self) 1817 OperatorUser.__init__(self) 1818 self.left = leftright[0] 1819 self.right = leftright[1] 1820 self.lineno = lineno 1821 1822 def getChildren(self): 1823 return self.left, self.right 1824 1825 def getChildNodes(self): 1826 return self.left, self.right 1827 1828 def __repr__(self): 1829 return "Sub((%r, %r))" % (self.left, self.right) 1830 1831 def __str__(self): 1832 return "(%s - %s)" % (self.left, self.right) 1833 1834 def visit(self, visitor, *args): 1835 return visitor.visitSub(self, *args) 1836 1837 class Subscript(Node, AttributeAccessor, OperatorUser): 1838 def __init__(self, expr, flags, subs, lineno=None): 1839 Node.__init__(self) 1840 AttributeAccessor.__init__(self) 1841 OperatorUser.__init__(self) 1842 self.expr = expr 1843 self.flags = flags 1844 self.subs = subs 1845 self.lineno = lineno 1846 1847 # Additional annotations. 1848 1849 self._expr = None 1850 1851 def getChildren(self): 1852 children = [] 1853 children.append(self.expr) 1854 children.append(self.flags) 1855 children.extend(flatten(self.subs)) 1856 return tuple(children) 1857 1858 def getChildNodes(self): 1859 nodelist = [] 1860 nodelist.append(self.expr) 1861 nodelist.extend(flatten_nodes(self.subs)) 1862 return tuple(nodelist) 1863 1864 def __repr__(self): 1865 return "Subscript(%r, %r, %r)" % (self.expr, self.flags, self.subs) 1866 1867 def __str__(self): 1868 return "%s[%s]" % (self.expr, ",".join(map(str, self.subs))) 1869 1870 def visit(self, visitor, *args): 1871 return visitor.visitSubscript(self, *args) 1872 1873 class TryExcept(Node): 1874 def __init__(self, body, handlers, else_, lineno=None): 1875 Node.__init__(self) 1876 self.body = body 1877 self.handlers = handlers 1878 self.else_ = else_ 1879 self.lineno = lineno 1880 1881 def getChildren(self): 1882 children = [] 1883 children.append(self.body) 1884 children.extend(flatten(self.handlers)) 1885 children.append(self.else_) 1886 return tuple(children) 1887 1888 def getChildNodes(self): 1889 nodelist = [] 1890 nodelist.append(self.body) 1891 nodelist.extend(flatten_nodes(self.handlers)) 1892 if self.else_ is not None: 1893 nodelist.append(self.else_) 1894 return tuple(nodelist) 1895 1896 def __repr__(self): 1897 return "TryExcept(%r, %r, %r)" % (self.body, self.handlers, self.else_) 1898 1899 def __str__(self): 1900 handlers = [ 1901 ("\nexcept%s%s:%s" % (spec and " %s" % spec or "", assign and ", %s" % assign or "", indent("\n%s" % statement))) 1902 for (spec, assign, statement) in self.handlers 1903 ] 1904 1905 return "try:%s%s%s" % ( 1906 indent("\n%s" % self.body), 1907 "".join(handlers), 1908 self.else_ and "\nelse:%s" % indent("\n%s" % self.else_) or "" 1909 ) 1910 1911 def visit(self, visitor, *args): 1912 return visitor.visitTryExcept(self, *args) 1913 1914 class TryFinally(Node): 1915 def __init__(self, body, final, lineno=None): 1916 Node.__init__(self) 1917 self.body = body 1918 self.final = final 1919 self.lineno = lineno 1920 1921 def getChildren(self): 1922 return self.body, self.final 1923 1924 def getChildNodes(self): 1925 return self.body, self.final 1926 1927 def __repr__(self): 1928 return "TryFinally(%r, %r)" % (self.body, self.final) 1929 1930 def __str__(self): 1931 return "try:%s\nfinally:%s" % ( 1932 indent("\n%s" % self.body), 1933 indent("\n%s" % self.final) 1934 ) 1935 1936 def visit(self, visitor, *args): 1937 return visitor.visitTryFinally(self, *args) 1938 1939 class Tuple(Node): 1940 def __init__(self, nodes, lineno=None): 1941 Node.__init__(self) 1942 self.nodes = nodes 1943 self.lineno = lineno 1944 1945 def getChildren(self): 1946 return tuple(flatten(self.nodes)) 1947 1948 def getChildNodes(self): 1949 nodelist = [] 1950 nodelist.extend(flatten_nodes(self.nodes)) 1951 return tuple(nodelist) 1952 1953 def __repr__(self): 1954 return "Tuple(%r)" % (self.nodes,) 1955 1956 def __str__(self): 1957 return "(%s)" % ", ".join(map(str, self.nodes)) 1958 1959 def visit(self, visitor, *args): 1960 return visitor.visitTuple(self, *args) 1961 1962 class UnaryAdd(Node, OperatorUser): 1963 def __init__(self, expr, lineno=None): 1964 Node.__init__(self) 1965 OperatorUser.__init__(self) 1966 self.expr = expr 1967 self.lineno = lineno 1968 1969 def getChildren(self): 1970 return self.expr, 1971 1972 def getChildNodes(self): 1973 return self.expr, 1974 1975 def __repr__(self): 1976 return "UnaryAdd(%r)" % (self.expr,) 1977 1978 def __str__(self): 1979 return "+%s" % self.expr 1980 1981 def visit(self, visitor, *args): 1982 return visitor.visitUnaryAdd(self, *args) 1983 1984 class UnarySub(Node, OperatorUser): 1985 def __init__(self, expr, lineno=None): 1986 Node.__init__(self) 1987 OperatorUser.__init__(self) 1988 self.expr = expr 1989 self.lineno = lineno 1990 1991 def getChildren(self): 1992 return self.expr, 1993 1994 def getChildNodes(self): 1995 return self.expr, 1996 1997 def __repr__(self): 1998 return "UnarySub(%r)" % (self.expr,) 1999 2000 def __str__(self): 2001 return "-%s" % self.expr 2002 2003 def visit(self, visitor, *args): 2004 return visitor.visitUnarySub(self, *args) 2005 2006 class While(Node): 2007 def __init__(self, test, body, else_, lineno=None): 2008 Node.__init__(self) 2009 self.test = test 2010 self.body = body 2011 self.else_ = else_ 2012 self.lineno = lineno 2013 2014 def getChildren(self): 2015 children = [] 2016 children.append(self.test) 2017 children.append(self.body) 2018 children.append(self.else_) 2019 return tuple(children) 2020 2021 def getChildNodes(self): 2022 nodelist = [] 2023 nodelist.append(self.test) 2024 nodelist.append(self.body) 2025 if self.else_ is not None: 2026 nodelist.append(self.else_) 2027 return tuple(nodelist) 2028 2029 def __repr__(self): 2030 return "While(%r, %r, %r)" % (self.test, self.body, self.else_) 2031 2032 def __str__(self): 2033 return "while %s:%s%s" % ( 2034 self.test, 2035 indent("\n%s" % self.body), 2036 self.else_ and "\nelse:%s" % indent("\n%s" % self.else_) or "" 2037 ) 2038 2039 def visit(self, visitor, *args): 2040 return visitor.visitWhile(self, *args) 2041 2042 class With(Node): 2043 def __init__(self, expr, vars, body, lineno=None): 2044 Node.__init__(self) 2045 self.expr = expr 2046 self.vars = vars 2047 self.body = body 2048 self.lineno = lineno 2049 2050 def getChildren(self): 2051 children = [] 2052 children.append(self.expr) 2053 children.append(self.vars) 2054 children.append(self.body) 2055 return tuple(children) 2056 2057 def getChildNodes(self): 2058 nodelist = [] 2059 nodelist.append(self.expr) 2060 if self.vars is not None: 2061 nodelist.append(self.vars) 2062 nodelist.append(self.body) 2063 return tuple(nodelist) 2064 2065 def __repr__(self): 2066 return "With(%r, %r, %r)" % (self.expr, self.vars, self.body) 2067 2068 def __str__(self): 2069 return "with %s%s:%s" % ( 2070 self.expr, 2071 self.vars and " as %s" % ", ".join(map(str, self.vars)), 2072 indent("\n%s" % self.body), 2073 ) 2074 2075 def visit(self, visitor, *args): 2076 return visitor.visitWith(self, *args) 2077 2078 class Yield(Node): 2079 def __init__(self, value, lineno=None): 2080 Node.__init__(self) 2081 self.value = value 2082 self.lineno = lineno 2083 2084 def getChildren(self): 2085 return self.value, 2086 2087 def getChildNodes(self): 2088 return self.value, 2089 2090 def __repr__(self): 2091 return "Yield(%r)" % (self.value,) 2092 2093 def __str__(self): 2094 return "yield %s" % self.value 2095 2096 def visit(self, visitor, *args): 2097 return visitor.visitYield(self, *args) 2098 2099 for name, obj in globals().items(): 2100 if isinstance(obj, type) and issubclass(obj, Node): 2101 nodes[name.lower()] = obj