Python declarations.remove_pointer函数代码示例

def filter_decls(mb):
    mb.global_ns.exclude()
    fx_ns = mb.namespace( 'FX' )
    fx_ns.include()
    fx_ns.decls( declarations_to_exclude.is_excluded ).exclude()
    fx_ns.decls( lambda decl: decl.name.startswith('FXIPCMsgHolder') ).exclude()
    fx_ns.namespace( 'Pol' ).exclude()
    fx_ns.decls( files_to_exclude.is_excluded ).exclude()
    fx_ns.class_( 'QValueList<FX::Pol::knowReferrers::ReferrerEntry>').exclude()
    try:
        fx_ns.variables( 'metaClass').exclude()
    except: pass
    try:
        fx_ns.class_( 'QPtrVector<FX::Generic::BoundFunctorV>').exclude()
    except: pass
    #Niall? wrapper for this function could not be compiled
    #TnFXSQLDBStatement = fx_ns.class_( 'TnFXSQLDBStatement' )
    #TnFXSQLDBStatement.member_function( name='bind', arg_types=[None,None,None] ).exclude()

    for func in fx_ns.calldefs():
        #I want to exclude all functions that returns pointer to pointer
        #and returns pointer to fundamental type
        if declarations.is_pointer( func.return_type ):
            temp = declarations.remove_pointer( func.return_type )
            if declarations.is_fundamental( temp ) and not declarations.is_const(temp):
                func.exclude()
            temp = declarations.remove_cv( func.return_type )
            temp = declarations.remove_pointer( temp )
            if declarations.is_pointer( temp ):
                func.exclude()

 def is_related( t1, t2 ):
     """Check whether two types\\classes t1 and t2 could introduce the problem"""
     
     if declarations.is_pointer( t1 ) and declarations.is_pointer( t2 ):
         return registration_order.is_related( declarations.remove_pointer( t1 )
                                               , declarations.remove_pointer( t2 ) )
     elif declarations.is_pointer( t1 ) and not declarations.is_pointer( t2 ):
         t1 = declarations.remove_cv( declarations.remove_pointer( t1 ) )
         t2 = declarations.remove_cv( t2 )
         if declarations.is_same( t1, t2 ):
             return 1
     elif not declarations.is_pointer( t1 ) and declarations.is_pointer( t2 ):
         t1 = declarations.remove_cv( t1 )
         t2 = declarations.remove_cv( declarations.remove_pointer( t2 ) )
         if declarations.is_same( t1, t2 ):
             return -1
     else: #not is_pointer( t1 ) and not is_pointer( t2 ):     
         if declarations.is_integral( t1 ) and not declarations.is_bool( t1 ) \
            and declarations.is_bool( t2 ):
             return -1
         elif declarations.is_bool( t1 ) \
              and declarations.is_integral( t2 ) and not declarations.is_bool( t2 ):
             return 1
         else:
             pass
     return None

    def test_function_pointer(self):
        """
        Test working with pointers and function pointers.

        """

        decls = parser.parse([self.header], self.config)
        global_ns = declarations.get_global_namespace(decls)

        # Test on a function pointer
        criteria = declarations.variable_matcher(name="func1")
        variables = declarations.matcher.find(criteria, global_ns)

        self.assertTrue(variables[0].name == "func1")
        self.assertTrue(
            isinstance(variables[0].decl_type, declarations.pointer_t))
        self.assertTrue(
            str(variables[0].decl_type) == "void (*)( int,double )")
        self.assertTrue(
            declarations.is_calldef_pointer(variables[0].decl_type))
        self.assertTrue(
            isinstance(declarations.remove_pointer(variables[0].decl_type),
                       declarations.free_function_type_t))

        # Get the function (free_function_type_t) and test the return and
        # argument types
        function = variables[0].decl_type.base
        self.assertTrue(isinstance(function.return_type, declarations.void_t))
        self.assertTrue(
            isinstance(function.arguments_types[0], declarations.int_t))
        self.assertTrue(
            isinstance(function.arguments_types[1], declarations.double_t))

        # Test on a normal pointer
        criteria = declarations.variable_matcher(name="myPointer")
        variables = declarations.matcher.find(criteria, global_ns)

        self.assertTrue(variables[0].name == "myPointer")
        self.assertTrue(
            isinstance(variables[0].decl_type, declarations.pointer_t))
        self.assertFalse(
            declarations.is_calldef_pointer(variables[0].decl_type))
        self.assertTrue(
            isinstance(declarations.remove_pointer(variables[0].decl_type),
                       declarations.volatile_t))

        # Test on function pointer in struct (x8)
        for d in global_ns.declarations:
            if d.name == "x8":
                self.assertTrue(
                    isinstance(d.decl_type, declarations.pointer_t))
                self.assertTrue(declarations.is_calldef_pointer(d.decl_type))
                self.assertTrue(
                    isinstance(
                        declarations.remove_pointer(d.decl_type),
                        declarations.member_function_type_t))
                self.assertTrue(
                    str(declarations.remove_pointer(d.decl_type)) ==
                    "void ( ::some_struct_t::* )(  )")

 def _exportable_impl(self):
     if self.transformations:
         # It is possible that the function asked for the user attention.
         # The user paid attention and created a transformation.
         # Py++ should be silent in this case.
         return ""
     if not self.parent.name:
         return messages.W1057 % str(self)
     all_types = [arg.type for arg in self.arguments]
     all_types.append(self.return_type)
     for some_type in all_types:
         if isinstance(some_type, declarations.ellipsis_t):
             return messages.W1053 % str(self)
         units = declarations.decompose_type(some_type)
         ptr2functions = filter(lambda unit: isinstance(unit, declarations.calldef_type_t), units)
         if ptr2functions:
             return messages.W1004
         # Function that take as agrument some instance of non public class
         # will not be exported. Same to the return variable
         if isinstance(units[-1], declarations.declarated_t):
             dtype = units[-1]
             if isinstance(dtype.declaration.parent, declarations.class_t):
                 if dtype.declaration not in dtype.declaration.parent.public_members:
                     return messages.W1005
         no_ref = declarations.remove_reference(some_type)
         no_ptr = declarations.remove_pointer(no_ref)
         no_const = declarations.remove_const(no_ptr)
         if declarations.is_array(no_const):
             return messages.W1006
     return self._exportable_impl_derived()

    def _update_containers_db( self, type_ ):
        #will return True is type was treated
        type_ = declarations.remove_alias( type_ )
        type_ = declarations.remove_pointer( type_ )
        type_ = declarations.remove_reference( type_ )
        type_ = declarations.remove_cv( type_ )
        type_ = declarations.remove_declarated( type_ )

        class_traits = declarations.class_traits
        class_declaration_traits = declarations.class_declaration_traits
        if not class_traits.is_my_case( type_ ) and not class_declaration_traits.is_my_case( type_ ):
            return False

        if class_traits.is_my_case( type_ ):
            container_cls = class_traits.get_declaration( type_ )
        else:
            container_cls = class_declaration_traits.get_declaration( type_ )

        if None is container_cls.indexing_suite:
            return False

        try:
            #check extraction of element type from container
            container_cls.indexing_suite.element_type
        except RuntimeError:
            decls_logger = _logging_.loggers.declarations
            if not messages.filter_disabled_msgs([messages.W1042], container_cls.disabled_messages ):
                return #user disabled property warning
            decls_logger.warn( "%s;%s" % ( container_cls, messages.W1042 ) )
        self.__containers.add( container_cls )
        return True

    def _exportable_impl( self ):
        if not self.name:
            return messages.W1033
        if self.bits == 0 and self.name == "":
            return messages.W1034
        if declarations.is_array( self.type ) and declarations.array_size( self.type ) < 1:
            return messages.W1045
        type_ = declarations.remove_alias( self.type )
        type_ = declarations.remove_const( type_ )
        if declarations.is_pointer( type_ ):
            if self.type_qualifiers.has_static:
                return messages.W1035
            if python_traits.is_immutable( type_.base ):
                return messages.W1036

            units = declarations.decompose_type( type_ )
            ptr2functions = filter( lambda unit: isinstance( unit, declarations.calldef_type_t )
                                    , units )
            if ptr2functions:
                return messages.W1037
        type_ = declarations.remove_pointer( type_ )
        if declarations.class_traits.is_my_case( type_ ):
            cls = declarations.class_traits.get_declaration( type_ )
            if not cls.name:
                return messages.W1038
        if isinstance( self.parent, declarations.class_t ):
            if self.access_type != declarations.ACCESS_TYPES.PUBLIC:
                return messages.W1039
        return ''

def remove_ref_or_ptr( type_ ):
    if declarations.is_pointer( type_ ):
        return declarations.remove_pointer( type_ )
    elif declarations.is_reference( type_ ):
        return declarations.remove_reference( type_ )
    else:
        raise TypeError( 'Type should be reference or pointer, got %s.' % type_ )

 def has_unnamed_type( self, var ):
     type_ = declarations.remove_pointer( var.type )
     #~ type_ = declarations.remove_declarated( type_ )
     if declarations.class_traits.is_my_case( type_ ):
         cls = declarations.class_traits.get_declaration( type_ )
         return bool( not cls.name )
     else:
         return False

    def check_type_compatibility( self, fget, fset ):
        #algorithms allows "const" differences between types
        t1 = fget.return_type
        t2 = fset.arguments[0].type

        if declarations.is_same( t1, t2 ):
            return True
        elif declarations.is_pointer( t1 ) and declarations.is_pointer( t2 ):
            t1 = declarations.remove_cv( declarations.remove_pointer( t1 ) )
            t2 = declarations.remove_cv( declarations.remove_pointer( t2 ) )
            return declarations.is_same( t1, t2 )
        elif declarations.is_reference( t1 ) and declarations.is_reference( t2 ):
            t1 = declarations.remove_cv( declarations.remove_reference( t1 ) )
            t2 = declarations.remove_cv( declarations.remove_reference( t2 ) )
            return declarations.is_same( t1, t2 )
        else:
            return False

    def _exportable_impl( self ):
        if not self.parent.name and self.is_wrapper_needed():
            #return messages.W1057 % str( self )
            return messages.W1058 % str( self )
        if not self.name:
            return messages.W1033
        if self.bits == 0 and self.name == "":
            return messages.W1034
        if not self.expose_address:
            if declarations.is_array( self.type ) and declarations.array_size( self.type ) < 1:
                return messages.W1045
        type_ = declarations.remove_alias( self.type )
        type_ = declarations.remove_const( type_ )
        if declarations.is_pointer( type_ ):
            if not self.expose_address and self.type_qualifiers.has_static:
                return messages.W1035
            if not self.expose_address and python_traits.is_immutable( type_.base ):
                return messages.W1036

            units = declarations.decompose_type( type_ )
            ptr2functions = filter( lambda unit: isinstance( unit, declarations.calldef_type_t )
                                    , units )
            if ptr2functions:
                return messages.W1037
        type_ = declarations.remove_pointer( type_ )
        if declarations.class_traits.is_my_case( type_ ):
            cls = declarations.class_traits.get_declaration( type_ )
            if not cls.name:
                return messages.W1038
            #if cls.class_type == declarations.CLASS_TYPES.UNION:
            #    return messages.W1061 % ( str( self ), str( cls ) )
        if isinstance( self.parent, declarations.class_t ):
            if self.access_type != declarations.ACCESS_TYPES.PUBLIC:
                return messages.W1039
        if declarations.is_array( type_ ):
            item_type = declarations.array_item_type( type_ )
            if declarations.is_pointer( item_type ):
                item_type_no_ptr = declarations.remove_pointer( item_type )
                if python_traits.is_immutable( item_type_no_ptr ):
                    return messages.W1056
        return ''

 def __should_be_exposed_by_address_only(self):
     type_ = declarations.remove_alias( self.type )
     type_ = declarations.remove_const( type_ )
     type_ = declarations.remove_pointer( type_ )
     if not declarations.class_traits.is_my_case( type_ ):
         return False
     cls = declarations.class_traits.get_declaration( type_ )
     if cls.class_type == declarations.CLASS_TYPES.UNION:
         return True
     elif not cls.name:
         return True
     else:
         return False

 def visit_pointer( self ):
     no_ptr = declarations.remove_const( declarations.remove_pointer( self.user_type ) )
     if declarations.is_same( declarations.char_t(), no_ptr ) and self.treat_char_ptr_as_binary_data == False:
         return "ctypes.c_char_p"
     elif declarations.is_same( declarations.wchar_t(), no_ptr ) and self.treat_char_ptr_as_binary_data == False:
         return "ctypes.c_wchar_p"
     elif declarations.is_same( declarations.void_t(), no_ptr ):
         return "ctypes.c_void_p"
     else:
         base_visitor = self.create_converter( self.user_type.base )
         internal_type_str = declarations.apply_visitor( base_visitor, base_visitor.user_type )
         if declarations.is_calldef_pointer( self.user_type ):
             return internal_type_str
         else:
             return "ctypes.POINTER( %s )" % internal_type_str

def expose_member_as_ndarray1d(klass, member_name, array_size):
    klass.include_files.append( "ndarray.hpp")
    z = klass.var(member_name)
    z.exclude()
    elem_type = _D.array_item_type(z.type) if _D.is_array(z.type) else _D.remove_pointer(z.type)
    klass.add_declaration_code('''
static sdcpp::ndarray CLASS_NAME_get_CLASS_NAME_MEMBER_NAME( CLASS_TYPE const & inst ){
    return sdcpp::new_ndarray1d(ARRAY_SIZE, sdcpp::dtypeof< ELEM_TYPE >(), (void *)(inst.MEMBER_NAME));
}

    '''.replace("MEMBER_NAME", member_name) \
        .replace("CLASS_NAME", klass.alias) \
        .replace("CLASS_TYPE", klass.pds) \
        .replace("ELEM_TYPE", elem_type.partial_decl_string) \
        .replace("ARRAY_SIZE", str(array_size)))
    klass.add_registration_code('add_property( "MEMBER_NAME", &::CLASS_NAME_get_CLASS_NAME_MEMBER_NAME )' \
        .replace("MEMBER_NAME", member_name).replace("CLASS_NAME", klass.alias))

def find_out_opaque_decl( type_, ensure_opaque_decl ):
    naked_type = declarations.remove_cv( type_ )
    if not declarations.is_pointer( naked_type ):
        return None
    naked_type = declarations.remove_pointer( declarations.remove_cv( type_ ) )
    if decl_wrappers.python_traits.is_immutable( naked_type ):
        return None#immutable types could not be opaque
    decl = None
    if declarations.is_class( naked_type ):
        decl = declarations.class_traits.get_declaration( naked_type )
    elif declarations.is_class_declaration( naked_type ):#class declaration:
        decl = declarations.class_declaration_traits.get_declaration( naked_type )
    else:
        return None
    if ensure_opaque_decl:
        if decl.opaque:
            return decl
        else:
            return None
    else:
        return decl

 def _exportable_impl( self ):
     all_types = [ arg.type for arg in self.arguments ]
     all_types.append( self.return_type )
     for some_type in all_types:
         units = declarations.decompose_type( some_type )
         ptr2functions = filter( lambda unit: isinstance( unit, declarations.calldef_type_t )
                                 , units )
         if ptr2functions:
             return messages.W1004
         #Function that take as agrument some instance of non public class
         #will not be exported. Same to the return variable
         if isinstance( units[-1], declarations.declarated_t ):
             dtype = units[-1]
             if isinstance( dtype.declaration.parent, declarations.class_t ):
                 if dtype.declaration not in dtype.declaration.parent.public_members:
                     return messages.W1005
         no_ref = declarations.remove_reference( some_type )
         no_ptr = declarations.remove_pointer( no_ref )
         no_const = declarations.remove_const( no_ptr )
         if declarations.is_array( no_const ):
             return messages.W1006
     return self._exportable_impl_derived()