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# -*- coding: utf-8 -*-
"""
    sphinx.util.jsonimpl
    ~~~~~~~~~~~~~~~~~~~~

    JSON serializer implementation wrapper.

    :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

import UserString
import json


class SphinxJSONEncoder(json.JSONEncoder):
    """JSONEncoder subclass that forces translation proxies."""
    def default(self, obj):
        if isinstance(obj, UserString.UserString):
            return unicode(obj)
        return json.JSONEncoder.default(self, obj)


def dump(obj, fp, *args, **kwds):
    kwds['cls'] = SphinxJSONEncoder
    return json.dump(obj, fp, *args, **kwds)

def dumps(obj, *args, **kwds):
    kwds['cls'] = SphinxJSONEncoder
    return json.dumps(obj, *args, **kwds)

def load(*args, **kwds):
    return json.load(*args, **kwds)

def loads(*args, **kwds):
    return json.loads(*args, **kwds)