Index: third_party/google-endpoints/libpasteurize/fixes/fix_next.py |
diff --git a/third_party/google-endpoints/libpasteurize/fixes/fix_next.py b/third_party/google-endpoints/libpasteurize/fixes/fix_next.py |
new file mode 100644 |
index 0000000000000000000000000000000000000000..9ecb6c0439e08a706d114e0ff17402fdb6f611cd |
--- /dev/null |
+++ b/third_party/google-endpoints/libpasteurize/fixes/fix_next.py |
@@ -0,0 +1,43 @@ |
+u""" |
+Fixer for: |
+it.__next__() -> it.next(). |
+next(it) -> it.next(). |
+""" |
+ |
+from lib2to3.pgen2 import token |
+from lib2to3.pygram import python_symbols as syms |
+from lib2to3 import fixer_base |
+from lib2to3.fixer_util import Name, Call, find_binding, Attr |
+ |
+bind_warning = u"Calls to builtin next() possibly shadowed by global binding" |
+ |
+ |
+class FixNext(fixer_base.BaseFix): |
+ |
+ PATTERN = u""" |
+ power< base=any+ trailer< '.' attr='__next__' > any* > |
+ | |
+ power< head='next' trailer< '(' arg=any ')' > any* > |
+ | |
+ classdef< 'class' base=any+ ':' |
+ suite< any* |
+ funcdef< 'def' |
+ attr='__next__' |
+ parameters< '(' NAME ')' > any+ > |
+ any* > > |
+ """ |
+ |
+ def transform(self, node, results): |
+ assert results |
+ |
+ base = results.get(u"base") |
+ attr = results.get(u"attr") |
+ head = results.get(u"head") |
+ arg_ = results.get(u"arg") |
+ if arg_: |
+ arg = arg_.clone() |
+ head.replace(Attr(Name(unicode(arg),prefix=head.prefix), |
+ Name(u"next"))) |
+ arg_.remove() |
+ elif base: |
+ attr.replace(Name(u"next", prefix=attr.prefix)) |