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# Copyright (c) 2017 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Andreas Sandberg
from abc import *
class PyBindExport(object):
__metaclass__ = ABCMeta
@abstractmethod
def export(self, code, cname):
pass
class PyBindProperty(PyBindExport):
def __init__(self, name, cxx_name=None, writable=True):
self.name = name
self.cxx_name = cxx_name if cxx_name else name
self.writable = writable
def export(self, code, cname):
export = "def_readwrite" if self.writable else "def_readonly"
code('.${export}("${{self.name}}", &${cname}::${{self.cxx_name}})')
class PyBindMethod(PyBindExport):
def __init__(self, name, cxx_name=None, args=None):
self.name = name
self.cxx_name = cxx_name if cxx_name else name
self.args = args
def _conv_arg(self, value):
if isinstance(value, bool):
return "true" if value else "false"
elif isinstance(value, (float, int)):
return repr(value)
else:
raise TypeError("Unsupported PyBind default value type")
def export(self, code, cname):
if self.args:
def get_arg_decl(arg):
if isinstance(arg, tuple):
name, default = arg
return 'py::arg("%s") = %s' % (
name, self._conv_arg(default))
else:
return 'py::arg("%s")' % arg
code('.def("${{self.name}}", &${cname}::${{self.name}}, ')
code(' ' + \
', '.join([ get_arg_decl(a) for a in self.args ]) + ')')
else:
code('.def("${{self.name}}", &${cname}::${{self.cxx_name}})')
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