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| 1 # This file is part of Adblock Plus <https://adblockplus.org/>, | 1 # This file is part of Adblock Plus <https://adblockplus.org/>, |
| 2 # Copyright (C) 2006-present eyeo GmbH | 2 # Copyright (C) 2006-present eyeo GmbH |
| 3 # | 3 # |
| 4 # Adblock Plus is free software: you can redistribute it and/or modify | 4 # Adblock Plus is free software: you can redistribute it and/or modify |
| 5 # it under the terms of the GNU General Public License version 3 as | 5 # it under the terms of the GNU General Public License version 3 as |
| 6 # published by the Free Software Foundation. | 6 # published by the Free Software Foundation. |
| 7 # | 7 # |
| 8 # Adblock Plus is distributed in the hope that it will be useful, | 8 # Adblock Plus is distributed in the hope that it will be useful, |
| 9 # but WITHOUT ANY WARRANTY; without even the implied warranty of | 9 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| (...skipping 28 matching lines...) Expand all Loading... |
| 39 } | 39 } |
| 40 | 40 |
| 41 ESSENTIAL_BUILTINS = set(dir(builtins)) - {'apply', 'buffer', 'coerce', | 41 ESSENTIAL_BUILTINS = set(dir(builtins)) - {'apply', 'buffer', 'coerce', |
| 42 'intern', 'file'} | 42 'intern', 'file'} |
| 43 | 43 |
| 44 LEAVE_BLOCK = (ast.Return, ast.Raise, ast.Continue, ast.Break) | 44 LEAVE_BLOCK = (ast.Return, ast.Raise, ast.Continue, ast.Break) |
| 45 VOLATILE = object() | 45 VOLATILE = object() |
| 46 | 46 |
| 47 | 47 |
| 48 def evaluate(node): | 48 def evaluate(node): |
| 49 names = {'__builtins__': {'True': True, 'False': False, 'None': None}} | |
| 50 try: | 49 try: |
| 51 return eval(compile(ast.Expression(node), '', 'eval'), names) | 50 return eval(compile(ast.Expression(node), '', 'eval'), {}) |
| 52 except Exception: | 51 except Exception: |
| 53 return VOLATILE | 52 return VOLATILE |
| 54 | 53 |
| 55 | 54 |
| 56 def is_const(node): | 55 def is_const(node): |
| 57 return evaluate(node) is not VOLATILE | 56 return evaluate(node) is not VOLATILE |
| 58 | 57 |
| 59 | 58 |
| 60 def get_identifier(node): | 59 def get_identifier(node): |
| 61 if isinstance(node, ast.Name): | 60 if isinstance(node, ast.Name): |
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| 392 | 391 |
| 393 if 'u' in prefixes: | 392 if 'u' in prefixes: |
| 394 yield (start, 'A112 use "from __future__ import ' | 393 yield (start, 'A112 use "from __future__ import ' |
| 395 'unicode_literals" instead of ' | 394 'unicode_literals" instead of ' |
| 396 'prefixing literals with "u"') | 395 'prefixing literals with "u"') |
| 397 | 396 |
| 398 if first_token and re.search(r'^(?:(?:def|class)\s|$)', | 397 if first_token and re.search(r'^(?:(?:def|class)\s|$)', |
| 399 previous_logical): | 398 previous_logical): |
| 400 pass # Ignore docstrings | 399 pass # Ignore docstrings |
| 401 elif start[0] != end[0]: | 400 elif start[0] != end[0]: |
| 402 pass # Ignore multiline strings | 401 pass # Ignore multiline strings |
| 403 elif 'r' in prefixes: | 402 elif 'r' in prefixes: |
| 404 if quote != "'" and not (quote == '"' and "'" in text): | 403 if quote != "'" and not (quote == '"' and "'" in text): |
| 405 yield (start, 'A110 use single quotes for raw string') | 404 yield (start, 'A110 use single quotes for raw string') |
| 406 else: | 405 else: |
| 407 prefix = '' | 406 prefix = '' |
| 408 if sys.version_info[0] >= 3: | 407 if sys.version_info[0] >= 3: |
| 409 if 'b' in prefixes: | 408 if 'b' in prefixes: |
| 410 prefix = 'b' | 409 prefix = 'b' |
| 411 else: | 410 else: |
| 412 u_literals = checker_state.get('has_unicode_literals') | 411 u_literals = checker_state.get('has_unicode_literals') |
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| 469 return [(pos, 'A111 redundant parenthesis for {} ' | 468 return [(pos, 'A111 redundant parenthesis for {} ' |
| 470 'statement'.format(statement))] | 469 'statement'.format(statement))] |
| 471 | 470 |
| 472 return [] | 471 return [] |
| 473 | 472 |
| 474 | 473 |
| 475 for checker in [ASTChecker, check_non_default_encoding, | 474 for checker in [ASTChecker, check_non_default_encoding, |
| 476 check_quotes, check_redundant_parenthesis]: | 475 check_quotes, check_redundant_parenthesis]: |
| 477 checker.name = 'eyeo' | 476 checker.name = 'eyeo' |
| 478 checker.version = __version__ | 477 checker.version = __version__ |
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