EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.2 / Lib / lib2to3 / fixes / fix_execfile.py

# Copyright 2006 Google, Inc. All Rights Reserved.\r
# Licensed to PSF under a Contributor Agreement.\r
\r
"""Fixer for execfile.\r
\r
This converts usages of the execfile function into calls to the built-in\r
exec() function.\r
"""\r
\r
from .. import fixer_base\r
from ..fixer_util import (Comma, Name, Call, LParen, RParen, Dot, Node,\r
                          ArgList, String, syms)\r
\r
\r
class FixExecfile(fixer_base.BaseFix):\r
    BM_compatible = True\r
\r
    PATTERN = """\r
    power< 'execfile' trailer< '(' arglist< filename=any [',' globals=any [',' locals=any ] ] > ')' > >\r
    |\r
    power< 'execfile' trailer< '(' filename=any ')' > >\r
    """\r
\r
    def transform(self, node, results):\r
        assert results\r
        filename = results["filename"]\r
        globals = results.get("globals")\r
        locals = results.get("locals")\r
\r
        # Copy over the prefix from the right parentheses end of the execfile\r
        # call.\r
        execfile_paren = node.children[-1].children[-1].clone()\r
        # Construct open().read().\r
        open_args = ArgList([filename.clone()], rparen=execfile_paren)\r
        open_call = Node(syms.power, [Name(u"open"), open_args])\r
        read = [Node(syms.trailer, [Dot(), Name(u'read')]),\r
                Node(syms.trailer, [LParen(), RParen()])]\r
        open_expr = [open_call] + read\r
        # Wrap the open call in a compile call. This is so the filename will be\r
        # preserved in the execed code.\r
        filename_arg = filename.clone()\r
        filename_arg.prefix = u" "\r
        exec_str = String(u"'exec'", u" ")\r
        compile_args = open_expr + [Comma(), filename_arg, Comma(), exec_str]\r
        compile_call = Call(Name(u"compile"), compile_args, u"")\r
        # Finally, replace the execfile call with an exec call.\r
        args = [compile_call]\r
        if globals is not None:\r
            args.extend([Comma(), globals.clone()])\r
        if locals is not None:\r
            args.extend([Comma(), locals.clone()])\r
        return Call(Name(u"exec"), args, prefix=node.prefix)\r