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/*
* proxy.swg : SWIG include file for defining automatic proxy classes
*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*/
#ifdef SWIGPYTHON
/* Note: See the big comment at the top of proxy_apr.swg for details on
* how this _is_valid stuff actually works. It's part of the magic
* that lets us gracefully handle objects that are allocated from
* a pool that's been cleared or destroyed.
*/
%pythoncode %{
def _copy_metadata_deep(value, old_value):
"""Copy all attributes of old_value into value, recursively traversing
lists and dicts if needed."""
if value is None or old_value is None or value is old_value: return
if isinstance(value, dict):
for k, v in value.iteritems():
_copy_metadata_deep(v, old_value[k])
elif isinstance(value, list):
for v, old_v in zip(value, old_value):
_copy_metadata_deep(v, old_v)
else:
try:
value.__dict__.update(old_value.__dict__)
except AttributeError:
pass
def _assert_valid_deep(value):
"""Assert value's validity, recursively traversing lists and dicts."""
if isinstance(value, dict):
for v in value.itervalues():
_assert_valid_deep(v)
elif isinstance(value, list):
for v in value:
_assert_valid_deep(v)
else:
if hasattr(value, "assert_valid"):
value.assert_valid()
%}
/* Default code for all wrapped proxy classes in Python.
* Inline the code from a separate file to avoid issues with
* SWIG mis-parsing the comments as preprocessor directives. */
%define %proxy_pythoncode(TYPE)
%pythoncode "proxy.py"
%enddef
/* Define a proxy for wrapping an existing struct */
%define %proxy(TYPE)
%extend TYPE {
%proxy_pythoncode(TYPE);
}
%enddef
/* Define a proxy class for wrapping an opaque struct */
%define %opaque_proxy(TYPE)
struct TYPE {
%extend {
%proxy_pythoncode(TYPE);
}
}
%enddef
/* Treat typemapped function pointers as objects, which have a bound
* __call__ method. This mapping depends on the function pointer being
* typemapped as a CALLABLE_CALLBACK. */
%define %funcptr_proxy(TYPE, INVOKE)
%nodefault TYPE;
struct TYPE {
%extend {
%proxy_pythoncode(TYPE);
%pythoncode %{
def __call__(self, *args):
return INVOKE(self, *args)
%}
}
};
%enddef
/* Add member functions to objects so that their function pointers can
* be invoked.
*
* Unlike the CALLABLE_CALLBACKS, these member functions don't have or
* need typemaps, because the underlying C/SWIG object for the callback
* is hidden.
*/
%define %funcptr_member_proxy(TYPE, MEMBER, INVOKE)
%extend TYPE {
%pythoncode %{
def MEMBER(self, *args):
return INVOKE(self, *args)
%}
}
%enddef
#endif
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