1 files changed, 0 insertions, 103 deletions
diff --git a/Lib/lib2to3/fixes/fix_next.py b/Lib/lib2to3/fixes/fix_next.py
deleted file mode 100644
index 9f6305e..0000000
--- a/Lib/lib2to3/fixes/fix_next.py
+++ /dev/null
@@ -1,103 +0,0 @@
-"""Fixer for it.next() -> next(it), per PEP 3114."""
-# Author: Collin Winter
-
-# Things that currently aren't covered:
-#   - listcomp "next" names aren't warned
-#   - "with" statement targets aren't checked
-
-# Local imports
-from ..pgen2 import token
-from ..pygram import python_symbols as syms
-from .. import fixer_base
-from ..fixer_util import Name, Call, find_binding
-
-bind_warning = "Calls to builtin next() possibly shadowed by global binding"
-
-
-class FixNext(fixer_base.BaseFix):
-    BM_compatible = True
-    PATTERN = """
-    power< base=any+ trailer< '.' attr='next' > trailer< '(' ')' > >
-    |
-    power< head=any+ trailer< '.' attr='next' > not trailer< '(' ')' > >
-    |
-    classdef< 'class' any+ ':'
-              suite< any*
-                     funcdef< 'def'
-                              name='next'
-                              parameters< '(' NAME ')' > any+ >
-                     any* > >
-    |
-    global=global_stmt< 'global' any* 'next' any* >
-    """
-
-    order = "pre" # Pre-order tree traversal
-
-    def start_tree(self, tree, filename):
-        super(FixNext, self).start_tree(tree, filename)
-
-        n = find_binding('next', tree)
-        if n:
-            self.warning(n, bind_warning)
-            self.shadowed_next = True
-        else:
-            self.shadowed_next = False
-
-    def transform(self, node, results):
-        assert results
-
-        base = results.get("base")
-        attr = results.get("attr")
-        name = results.get("name")
-
-        if base:
-            if self.shadowed_next:
-                attr.replace(Name("__next__", prefix=attr.prefix))
-            else:
-                base = [n.clone() for n in base]
-                base[0].prefix = ""
-                node.replace(Call(Name("next", prefix=node.prefix), base))
-        elif name:
-            n = Name("__next__", prefix=name.prefix)
-            name.replace(n)
-        elif attr:
-            # We don't do this transformation if we're assigning to "x.next".
-            # Unfortunately, it doesn't seem possible to do this in PATTERN,
-            #  so it's being done here.
-            if is_assign_target(node):
-                head = results["head"]
-                if "".join([str(n) for n in head]).strip() == '__builtin__':
-                    self.warning(node, bind_warning)
-                return
-            attr.replace(Name("__next__"))
-        elif "global" in results:
-            self.warning(node, bind_warning)
-            self.shadowed_next = True
-
-
-### The following functions help test if node is part of an assignment
-###  target.
-
-def is_assign_target(node):
-    assign = find_assign(node)
-    if assign is None:
-        return False
-
-    for child in assign.children:
-        if child.type == token.EQUAL:
-            return False
-        elif is_subtree(child, node):
-            return True
-    return False
-
-def find_assign(node):
-    if node.type == syms.expr_stmt:
-        return node
-    if node.type == syms.simple_stmt or node.parent is None:
-        return None
-    return find_assign(node.parent)
-
-def is_subtree(root, node):
-    if root == node:
-        return True
-    return any(is_subtree(c, node) for c in root.children)