"""Fixer that changes input(...) into eval(input(...))."""
# Author: Andre Roberge

# Local imports
from .. import fixer_base
from ..fixer_util import Call, Name
from .. import patcomp


context = patcomp.compile_pattern("power< 'eval' trailer< '(' any ')' > >")


class FixInput(fixer_base.BaseFix):
BM_compatible = True
PATTERN = """
power< 'input' args=trailer< '(' [any] ')' > >
"""

def transform(self, node, results):
# If we're already wrapped in a eval() call, we're done.
if context.match(node.parent.parent):
return

new = node.clone()
new.prefix = u""
return Call(Name(u"eval"), [new], prefix=node.prefix)