xform_utils.py

# ScratchABlock - Program analysis and decompilation framework
#
# Copyright (c) 2015-2018 Paul Sokolovsky
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

"""Transformation helpers and utilities"""

import logging


log = logging.getLogger(__name__)


# Apply tranformation while it's possible
def apply_iterative(func, args):
    cnt = 0
    while func(*args):
        cnt += 1
    log.info("Ran %s %d times" % (func, cnt))
    return cnt


def repr_output(cfg):
    """Force detailed repr-style output for EXPRs.

    Useful for "#xform:" pragmas in source files.
    """
    import core
    core.SimpleExpr.simple_repr = False