mirror of
https://github.com/python/cpython.git
synced 2025-11-04 03:44:55 +00:00
39 lines
979 B
Python
39 lines
979 B
Python
# Copyright 2006 Google, Inc. All Rights Reserved.
|
|
# Licensed to PSF under a Contributor Agreement.
|
|
|
|
"""Fixer for exec.
|
|
|
|
This converts usages of the exec statement into calls to a built-in
|
|
exec() function.
|
|
|
|
exec code in ns1, ns2 -> exec(code, ns1, ns2)
|
|
"""
|
|
|
|
# Local imports
|
|
from .. import fixer_base
|
|
from ..fixer_util import Comma, Name, Call
|
|
|
|
|
|
class FixExec(fixer_base.BaseFix):
|
|
BM_compatible = True
|
|
|
|
PATTERN = """
|
|
exec_stmt< 'exec' a=any 'in' b=any [',' c=any] >
|
|
|
|
|
exec_stmt< 'exec' (not atom<'(' [any] ')'>) a=any >
|
|
"""
|
|
|
|
def transform(self, node, results):
|
|
assert results
|
|
syms = self.syms
|
|
a = results["a"]
|
|
b = results.get("b")
|
|
c = results.get("c")
|
|
args = [a.clone()]
|
|
args[0].prefix = ""
|
|
if b is not None:
|
|
args.extend([Comma(), b.clone()])
|
|
if c is not None:
|
|
args.extend([Comma(), c.clone()])
|
|
|
|
return Call(Name("exec"), args, prefix=node.prefix)
|