/usr/share/pyshared/Pyste/exporterutils.py is in libboost-python1.58-dev 1.58.0+dfsg-5ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | # Copyright Bruno da Silva de Oliveira 2003. Use, modification and
# distribution is subject to the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
'''
Various helpers for interface files.
'''
from settings import *
from policies import *
from declarations import *
#==============================================================================
# FunctionWrapper
#==============================================================================
class FunctionWrapper(object):
'''Holds information about a wrapper for a function or a method. It is
divided in 2 parts: the name of the Wrapper, and its code. The code is
placed in the declaration section of the module, while the name is used to
def' the function or method (with the pyste namespace prepend to it). If
code is None, the name is left unchanged.
'''
def __init__(self, name, code=None):
self.name = name
self.code = code
def FullName(self):
if self.code:
return namespaces.pyste + self.name
else:
return self.name
_printed_warnings = {} # used to avoid double-prints of warnings
#==============================================================================
# HandlePolicy
#==============================================================================
def HandlePolicy(function, policy):
'''Show a warning to the user if the function needs a policy and doesn't
have one. Return a policy to the function, which is the given policy itself
if it is not None, or a default policy for this method.
'''
def IsString(type):
'Return True if the Type instance can be considered a string'
return type.FullName() == 'const char*'
def IsPyObject(type):
return type.FullName() == '_object *' # internal name of PyObject
result = function.result
# if the function returns const char*, a policy is not needed
if IsString(result) or IsPyObject(result):
return policy
# if returns a const T&, set the default policy
if policy is None and result.const and isinstance(result, ReferenceType):
policy = return_value_policy(copy_const_reference)
# basic test if the result type demands a policy
needs_policy = isinstance(result, (ReferenceType, PointerType))
# show a warning to the user, if needed
if needs_policy and policy is None:
global _printed_warnings
warning = '---> Error: %s returns a pointer or a reference, ' \
'but no policy was specified.' % function.FullName()
if warning not in _printed_warnings:
print warning
print
# avoid double prints of the same warning
_printed_warnings[warning] = 1
return policy
#==============================================================================
# EspecializeTypeID
#==============================================================================
_exported_type_ids = {}
def EspecializeTypeID(typename):
global _exported_type_ids
macro = 'BOOST_PYTHON_OPAQUE_SPECIALIZED_TYPE_ID(%s)\n' % typename
if macro not in _exported_type_ids:
_exported_type_ids[macro] = 1
return macro
else:
return None
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