| 1 | n/a | """Fix incompatible renames |
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| 2 | n/a | |
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| 3 | n/a | Fixes: |
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| 4 | n/a | * sys.maxint -> sys.maxsize |
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| 5 | n/a | """ |
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| 6 | n/a | # Author: Christian Heimes |
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| 7 | n/a | # based on Collin Winter's fix_import |
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| 8 | n/a | |
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| 9 | n/a | # Local imports |
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| 10 | n/a | from .. import fixer_base |
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| 11 | n/a | from ..fixer_util import Name, attr_chain |
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| 12 | n/a | |
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| 13 | n/a | MAPPING = {"sys": {"maxint" : "maxsize"}, |
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| 14 | n/a | } |
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| 15 | n/a | LOOKUP = {} |
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| 16 | n/a | |
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| 17 | n/a | def alternates(members): |
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| 18 | n/a | return "(" + "|".join(map(repr, members)) + ")" |
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| 19 | n/a | |
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| 20 | n/a | |
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| 21 | n/a | def build_pattern(): |
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| 22 | n/a | #bare = set() |
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| 23 | n/a | for module, replace in list(MAPPING.items()): |
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| 24 | n/a | for old_attr, new_attr in list(replace.items()): |
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| 25 | n/a | LOOKUP[(module, old_attr)] = new_attr |
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| 26 | n/a | #bare.add(module) |
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| 27 | n/a | #bare.add(old_attr) |
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| 28 | n/a | #yield """ |
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| 29 | n/a | # import_name< 'import' (module=%r |
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| 30 | n/a | # | dotted_as_names< any* module=%r any* >) > |
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| 31 | n/a | # """ % (module, module) |
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| 32 | n/a | yield """ |
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| 33 | n/a | import_from< 'from' module_name=%r 'import' |
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| 34 | n/a | ( attr_name=%r | import_as_name< attr_name=%r 'as' any >) > |
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| 35 | n/a | """ % (module, old_attr, old_attr) |
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| 36 | n/a | yield """ |
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| 37 | n/a | power< module_name=%r trailer< '.' attr_name=%r > any* > |
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| 38 | n/a | """ % (module, old_attr) |
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| 39 | n/a | #yield """bare_name=%s""" % alternates(bare) |
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| 40 | n/a | |
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| 41 | n/a | |
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| 42 | n/a | class FixRenames(fixer_base.BaseFix): |
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| 43 | n/a | BM_compatible = True |
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| 44 | n/a | PATTERN = "|".join(build_pattern()) |
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| 45 | n/a | |
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| 46 | n/a | order = "pre" # Pre-order tree traversal |
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| 47 | n/a | |
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| 48 | n/a | # Don't match the node if it's within another match |
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| 49 | n/a | def match(self, node): |
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| 50 | n/a | match = super(FixRenames, self).match |
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| 51 | n/a | results = match(node) |
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| 52 | n/a | if results: |
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| 53 | n/a | if any(match(obj) for obj in attr_chain(node, "parent")): |
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| 54 | n/a | return False |
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| 55 | n/a | return results |
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| 56 | n/a | return False |
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| 57 | n/a | |
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| 58 | n/a | #def start_tree(self, tree, filename): |
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| 59 | n/a | # super(FixRenames, self).start_tree(tree, filename) |
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| 60 | n/a | # self.replace = {} |
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| 61 | n/a | |
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| 62 | n/a | def transform(self, node, results): |
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| 63 | n/a | mod_name = results.get("module_name") |
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| 64 | n/a | attr_name = results.get("attr_name") |
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| 65 | n/a | #bare_name = results.get("bare_name") |
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| 66 | n/a | #import_mod = results.get("module") |
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| 67 | n/a | |
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| 68 | n/a | if mod_name and attr_name: |
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| 69 | n/a | new_attr = LOOKUP[(mod_name.value, attr_name.value)] |
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| 70 | n/a | attr_name.replace(Name(new_attr, prefix=attr_name.prefix)) |
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