def __call__(self, variable, hint=None):
if not isinstance(variable, declarations.variable_t):
return None
assert hint in ('get', 'set')
if not declarations.is_reference(variable.decl_type):
return None
no_ref = declarations.remove_reference(variable.decl_type)
base_type = declarations.remove_const(no_ref)
if python_traits.is_immutable(base_type):
#the relevant code creator will generate code, that will return this member variable
#by value
return decl_wrappers.default_call_policies()
if not isinstance(base_type, declarations.declarated_t):
return None
base_type = declarations.remove_alias(base_type)
declaration = base_type.declaration
if declarations.is_class_declaration(declaration):
return None
if declaration.is_abstract:
return None
if declarations.has_destructor(
declaration
) and not declarations.has_public_destructor(declaration):
return None
if not declarations.has_copy_constructor(declaration):
return None
if hint == 'get':
#if we rich this line, it means that we are able to create an obect using
#copy constructor.
if declarations.is_const(no_ref):
return decl_wrappers.return_value_policy(
decl_wrappers.copy_const_reference)
else:
return decl_wrappers.return_value_policy(
decl_wrappers.copy_non_const_reference)
else:
return decl_wrappers.default_call_policies()
def _get_has_setter( self ):
if declarations.is_const( declarations.remove_reference( self.declaration.type ) ):
return False
elif python_traits.is_immutable( self._get_exported_var_type() ):
return True
else:
pass
no_ref = declarations.remove_reference( self.declaration.type )
no_const = declarations.remove_const( no_ref )
base_type = declarations.remove_alias( no_const )
if not isinstance( base_type, declarations.declarated_t ):
return True #TODO ????
decl = base_type.declaration
if decl.is_abstract:
return False
if declarations.has_destructor( decl ) and not declarations.has_public_destructor( decl ):
return False
if not declarations.has_copy_constructor(decl):
return False
return True
def _get_has_setter( self ):
if declarations.is_const( declarations.remove_reference( self.declaration.type ) ):
return False
elif python_traits.is_immutable( self._get_exported_var_type() ):
return True
else:
pass
no_ref = declarations.remove_reference( self.declaration.type )
no_const = declarations.remove_const( no_ref )
base_type = declarations.remove_alias( no_const )
if not isinstance( base_type, declarations.declarated_t ):
return True #TODO ????
decl = base_type.declaration
if decl.is_abstract:
return False
if declarations.has_destructor( decl ) and not declarations.has_public_destructor( decl ):
return False
if not declarations.has_copy_constructor(decl):
return False
return True
def __call__( self, variable, hint=None ):
if not isinstance( variable, declarations.variable_t ):
return None
assert hint in ( 'get', 'set' )
if not declarations.is_reference( variable.type ):
return None
no_ref = declarations.remove_reference( variable.type )
base_type = declarations.remove_const( no_ref )
if python_traits.is_immutable( base_type ):
#the relevant code creator will generate code, that will return this member variable
#by value
return decl_wrappers.default_call_policies()
if not isinstance( base_type, declarations.declarated_t ):
return None
base_type = declarations.remove_alias( base_type )
decl = base_type.declaration
if declarations.is_class_declaration( decl ):
return None
if decl.is_abstract:
return None
if declarations.has_destructor( decl ) and not declarations.has_public_destructor( decl ):
return None
if not declarations.has_copy_constructor(decl):
return None
if hint == 'get':
#if we rich this line, it means that we are able to create an obect using
#copy constructor.
if declarations.is_const( no_ref ):
return decl_wrappers.return_value_policy( decl_wrappers.copy_const_reference )
else:
return decl_wrappers.return_value_policy( decl_wrappers.copy_non_const_reference )
else:
return decl_wrappers.default_call_policies()
def visit_class(self ):
self.__dependencies_manager.add_exported( self.curr_decl )
cls_decl = self.curr_decl
cls_parent_cc = self.curr_code_creator
exportable_members = self.curr_decl.get_exportable_members(sort_algorithms.sort)
wrapper = None
cls_cc = code_creators.class_t( class_inst=self.curr_decl )
if self.curr_decl.is_wrapper_needed():
wrapper = code_creators.class_wrapper_t( declaration=self.curr_decl
, class_creator=cls_cc )
cls_cc.wrapper = wrapper
cls_cc.associated_decl_creators.append( wrapper )
#insert wrapper before module body
if isinstance( self.curr_decl.parent, declarations.class_t ):
#we deal with internal class
self.curr_code_creator.wrapper.adopt_creator( wrapper )
else:
self.__extmodule.adopt_declaration_creator( wrapper )
#next constructors are not present in code, but compiler generated
#Boost.Python requiers them to be declared in the wrapper class
if '0.9' in self.curr_decl.compiler:
copy_constr = self.curr_decl.find_copy_constructor()
add_to_wrapper = False
if declarations.has_copy_constructor( self.curr_decl ):
#find out whether user or compiler defined it
if self.curr_decl.noncopyable:
add_to_wrapper = False
elif not copy_constr:
add_to_wrapper = True #compiler defined will not be exposed manually later
elif copy_constr.is_artificial:
add_to_wrapper = True #compiler defined will not be exposed manually later
if add_to_wrapper:
cccc = code_creators.copy_constructor_wrapper_t( class_=self.curr_decl)
wrapper.adopt_creator( cccc )
trivial_constr = self.curr_decl.find_trivial_constructor()
add_to_wrapper = False
if declarations.has_trivial_constructor( self.curr_decl ):
if not trivial_constr:
add_to_wrapper = True
elif trivial_constr.is_artificial:
add_to_wrapper = True
if add_to_wrapper:
tcons = code_creators.null_constructor_wrapper_t( class_=self.curr_decl )
wrapper.adopt_creator( tcons )
else:
if declarations.has_copy_constructor( self.curr_decl ):
copy_constr = self.curr_decl.find_copy_constructor()
if not self.curr_decl.noncopyable and copy_constr.is_artificial:
cccc = code_creators.copy_constructor_wrapper_t( class_=self.curr_decl)
wrapper.adopt_creator( cccc )
null_constr = self.curr_decl.find_trivial_constructor()
if null_constr and null_constr.is_artificial:
#this constructor is not going to be exposed
tcons = code_creators.null_constructor_wrapper_t( class_=self.curr_decl )
wrapper.adopt_creator( tcons )
exposed = self.expose_overloaded_mem_fun_using_macro( cls_decl, cls_cc )
cls_parent_cc.adopt_creator( cls_cc )
self.curr_code_creator = cls_cc
for decl in exportable_members:
if decl in exposed:
continue
self.curr_decl = decl
declarations.apply_visitor( self, decl )
for redefined_func in cls_decl.redefined_funcs():
if isinstance( redefined_func, declarations.operator_t ):
continue
self.curr_decl = redefined_func
declarations.apply_visitor( self, redefined_func )
#all static_methods_t should be moved to the end
#better approach is to move them after last def of relevant function
static_methods = filter( lambda creator: isinstance( creator, code_creators.static_method_t )
, cls_cc.creators )
for static_method in static_methods:
cls_cc.remove_creator( static_method )
cls_cc.adopt_creator( static_method )
if cls_decl.exception_translation_code:
translator = code_creators.exception_translator_t( cls_decl )
self.__extmodule.adopt_declaration_creator( translator )
cls_cc.associated_decl_creators.append( translator )
translator_register \
= code_creators.exception_translator_register_t( cls_decl, translator )
cls_cc.adopt_creator( translator_register )
for property_def in cls_decl.properties:
cls_cc.adopt_creator( code_creators.property_t(property_def) )
self.curr_decl = cls_decl
self.curr_code_creator = cls_parent_cc
