from __future__ import division, absolute_import, print_function

__copyright__ = "Copyright (C) 2019 Xiaoyu Wei"

__license__ = """
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""

__doc__ = """
Code generation and evaluation.
"""


class Closure(object):
    """Code and data container.
    """
    def __init__(self, out_names, lpknl, data_map):
        self.out_names = out_names
        self.kernel = lpknl
        self.data_map = data_map
        assert self._check_context()

    def _check_context(self):
        """Check if data_map has consistent context.
        """
        ctx = None
        for key, val in self.data_map.items():
            if hasattr(val, 'context'):
                if ctx is None:
                    ctx = val.context
                elif ctx == val.context:
                    continue
                else:
                    return False
        self.context = ctx
        return True


from lappy.eval.execution import Executor
from lappy.eval.compiler import Compiler
__all__ = ['Compiler', 'Closure', 'Executor']
