symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/lib2to3/fixes/fix_itertools.py
author johnathan.white@2718R8BGH51.accenture.com
Mon, 08 Mar 2010 18:45:03 +0000
changeset 46 b6935a90ca64
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Modify framebuffer and NGA framebuffer to read screen size from board model dtb file. Optimise memory usuage of frame buffer Add example minigui application with hooks to profiler (which writes results to S:\). Modified NGA framebuffer to run its own dfc queue at high priority

""" Fixer for itertools.(imap|ifilter|izip) --> (map|filter|zip) and
    itertools.ifilterfalse --> itertools.filterfalse (bugs 2360-2363)

    imports from itertools are fixed in fix_itertools_import.py

    If itertools is imported as something else (ie: import itertools as it;
    it.izip(spam, eggs)) method calls will not get fixed.
    """

# Local imports
from .. import fixer_base
from ..fixer_util import Name

class FixItertools(fixer_base.BaseFix):
    it_funcs = "('imap'|'ifilter'|'izip'|'ifilterfalse')"
    PATTERN = """
              power< it='itertools'
                  trailer<
                     dot='.' func=%(it_funcs)s > trailer< '(' [any] ')' > >
              |
              power< func=%(it_funcs)s trailer< '(' [any] ')' > >
              """ %(locals())

    # Needs to be run after fix_(map|zip|filter)
    run_order = 6

    def transform(self, node, results):
        prefix = None
        func = results['func'][0]
        if 'it' in results and func.value != 'ifilterfalse':
            dot, it = (results['dot'], results['it'])
            # Remove the 'itertools'
            prefix = it.get_prefix()
            it.remove()
            # Replace the node wich contains ('.', 'function') with the
            # function (to be consistant with the second part of the pattern)
            dot.remove()
            func.parent.replace(func)

        prefix = prefix or func.get_prefix()
        func.replace(Name(func.value[1:], prefix=prefix))