OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	07/12/2020 04:36:18 PM	rwxr-xr-x
📄 __init__.py	3.63 KB	11/21/2014 11:52:03 AM	rw-r--r--
📁 __pycache__	-	07/12/2020 04:36:18 PM	rwxr-xr-x
📄 feature_base.py	1.69 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_add_all__future__imports.py	677 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_add_all_future_builtins.py	1.24 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_add_future_standard_library_import.py	663 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_annotations.py	1.55 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_division.py	904 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_features.py	2.62 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_fullargspec.py	442 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_future_builtins.py	1.42 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_getcwd.py	873 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_imports.py	4.83 KB	07/25/2015 10:34:42 AM	rw-r--r--
📄 fix_imports2.py	8.38 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_kwargs.py	5.87 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_memoryview.py	551 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_metaclass.py	3.19 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_newstyle.py	888 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_next.py	1.2 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_printfunction.py	401 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_raise.py	1.07 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_raise_.py	1.2 KB	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_throw.py	835 bytes	11/21/2014 11:52:03 AM	rw-r--r--
📄 fix_unpacking.py	5.81 KB	11/21/2014 11:52:03 AM	rw-r--r--

Editing: fix_features.py

u"""
Warn about features that are not present in Python 2.5, giving a message that
points to the earliest version of Python 2.x (or 3.x, if none) that supports it
"""

from .feature_base import Feature, Features
from lib2to3 import fixer_base

FEATURES = [
   #(FeatureName,
   #    FeaturePattern,
   # FeatureMinVersion,
   #),
    (u"memoryview",
        u"power < 'memoryview' trailer < '(' any* ')' > any* >",
     u"2.7",
    ),
    (u"numbers",
        u"""import_from< 'from' 'numbers' 'import' any* > |
           import_name< 'import' ('numbers' dotted_as_names< any* 'numbers' any* >) >""",
     u"2.6",
    ),
    (u"abc",
        u"""import_name< 'import' ('abc' dotted_as_names< any* 'abc' any* >) > |
           import_from< 'from' 'abc' 'import' any* >""",
     u"2.6",
    ),
    (u"io",
        u"""import_name< 'import' ('io' dotted_as_names< any* 'io' any* >) > |
           import_from< 'from' 'io' 'import' any* >""",
     u"2.6",
    ),
    (u"bin",
        u"power< 'bin' trailer< '(' any* ')' > any* >",
     u"2.6",
    ),
    (u"formatting",
        u"power< any trailer< '.' 'format' > trailer< '(' any* ')' > >",
     u"2.6",
    ),
    (u"nonlocal",
        u"global_stmt< 'nonlocal' any* >",
     u"3.0",
    ),
    (u"with_traceback",
        u"trailer< '.' 'with_traceback' >",
     u"3.0",
    ),
]

class FixFeatures(fixer_base.BaseFix):

run_order = 9 # Wait until all other fixers have run to check for these

# To avoid spamming, we only want to warn for each feature once.
    features_warned = set()

# Build features from the list above
    features = Features([Feature(name, pattern, version) for \
                                name, pattern, version in FEATURES])

PATTERN = features.PATTERN

def match(self, node):
        to_ret = super(FixFeatures, self).match(node)
        # We want the mapping only to tell us the node's specific information.
        try:
            del to_ret[u'node']
        except Exception:
            # We want it to delete the 'node' from the results
            # if it's there, so we don't care if it fails for normal reasons.
            pass
        return to_ret
    
    def transform(self, node, results):
        for feature_name in results:
            if feature_name in self.features_warned:
                continue
            else:
                curr_feature = self.features[feature_name]
                if curr_feature.version >= u"3":
                    fail = self.cannot_convert
                else:
                    fail = self.warning
                fail(node, reason=curr_feature.message_text())
                self.features_warned.add(feature_name)