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__init__.py
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__init__.py
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"""Base target interface."""
from __future__ import division, absolute_import
__copyright__ = "Copyright (C) 2015 Andreas Kloeckner"
__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.
"""
class TargetBase(object):
"""Objects of this type must be picklable."""
# {{{ persistent hashing
hash_fields = []
comparison_fields = []
def update_persistent_hash(self, key_hash, key_builder):
for field_name in self.hash_fields:
key_builder.rec(key_hash, getattr(self, field_name))
def __eq__(self, other):
if type(self) != type(other):
return False
for field_name in self.comparison_fields:
if getattr(self, field_name) != getattr(other, field_name):
return False
return True
def __ne__(self, other):
return not self.__eq__(other)
# }}}
def preprocess(self, kernel):
return kernel
def pre_codegen_check(self, kernel):
pass
def function_manglers(self):
return []
def symbol_manglers(self):
return []
def preamble_generators(self):
return []
def get_or_register_dtype(self, names, dtype=None):
raise NotImplementedError()
def dtype_to_typename(self, dtype):
raise NotImplementedError()
def is_vector_dtype(self, dtype):
raise NotImplementedError()
def vector_dtype(self, base, count):
raise NotImplementedError()
def alignment_requirement(self, type_decl):
import struct
return struct.calcsize(type_decl.struct_format())