def generate(self, env):
        marking_type = env.marking_type 
        
        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name='self')
        new_pid_dict_var = vp.new_variable(marking_type.type, name='new_pid_dict')

        function = pyast.FunctionDef(name='update_pids',
                                   args=pyast.A(self_var.name).param(new_pid_dict_var.name).ast())
            
        body = []
        for name, place_type in marking_type.place_types.iteritems():
            print place_type
            if not place_type.allow_pids:
                continue
            if name == GENERATOR_PLACE:
                body.append( pyast.Assign(targets = [ place_type.place_expr(env, self_var) ],
                                          value   = pyast.Call(func = pyast.Name(stubs['generator_place_update_pids']),
                                                               args = [ place_type.place_expr(env, self_var),
                                                                        pyast.Name(new_pid_dict_var.name) ])) )
            else:
                body.append( place_type.update_pids_stmt(env, self_var, new_pid_dict_var) )
        
        if not body:
            body = [pyast.Pass()]
        
        function.body = body
        return function
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name='self')
        new_pid_dict_var = vp.new_variable(marking_type.type,
                                           name='new_pid_dict')

        builder = cyast.Builder()

        args = (cyast.A(self_var.name, type=env.type2str(self_var.type)).param(
            new_pid_dict_var.name, type=env.type2str(new_pid_dict_var.type)))

        function = builder.FunctionCDef(name='update_pids',
                                        args=args,
                                        returns=cyast.E("void"))

        body = []
        for place_type in marking_type.place_types.itervalues():
            print place_type
            if not place_type.allows_pids:
                continue
            #body.append( update_pids_stmt(env, place_type, self_var, new_pid_dict_var) )

        if not body:
            body = [cyast.Pass()]

        function.body = body
        import pprint, ast
        pprint.pprint(ast.dump(function))
        return function
Beispiel #3
0
    def generate(self, env):
        marking_type = env.marking_type

        items = list(marking_type.place_types.iteritems())
        items.sort(lambda (n1, t1), (n2, t2) : cmp(n1, n2))

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name = 'self')
        list_var = vp.new_variable()

        builder = pyast.Builder()
        builder.begin_FunctionDef(name = "__dump__", args = pyast.A(self_var.name).ast())

        builder.emit(pyast.E('%s = ["{"]' % list_var.name))
        for (place_name, place_type) in items:
            if place_type.is_ProcessPlace:
                builder.emit(place_type.dump_expr(env, self_var, list_var))
            else:
                builder.emit(pyast.stmt(pyast.Call(func = pyast.E('{}.append'.format(list_var.name)),
                                           args = [ pyast.BinOp(left = pyast.Str(s = repr(place_name) + " : "),
                                                                op = pyast.Add(),
                                                                right = pyast.BinOp(left = place_type.dump_expr(env, self_var),
                                                                                    op = pyast.Add(),
                                                                                    right = pyast.Str(', '))
                                                            ) ]
                                           )
                                  )
                             )

        builder.emit(pyast.stmt(pyast.E('%s.append("}")' % list_var.name)))
        builder.emit_Return(pyast.E('"\\n".join({})'.format(list_var.name)))

        builder.end_FunctionDef()
        return builder.ast()
Beispiel #4
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    def generate(self, env):
        marking_type = env.marking_type
        config = marking_type.config

        vp = VariableProvider()
        self_var = vp.new_variable(env.marking_type.type, 'self')

        builder = pyast.Builder()

        builder.begin_FunctionDef(name='__pid_free_hash__',
                                  args=pyast.A(self_var.name).ast())

        builder.emit(pyast.E('h = 0'))

        for (name, place_type) in marking_type.place_types.iteritems():
            magic = hash(name)
            type_info = place_type.token_type

            if type_info.is_Pid:

                # builder.emit( pyast.E('h ^= hash(' +  place_type.field.access_from(self_var) + ') * ' + str(magic)) )

                right_operand = pyast.BinOp(left=place_type.pid_free_hash_expr(
                    env, self_var, [0]),
                                            op=pyast.Mult(),
                                            right=pyast.E(str(magic)))

                builder.emit(
                    pyast.AugAssign(target=[pyast.E("h")],
                                    op=pyast.BitXor(),
                                    value=right_operand))

            elif type_info.has_pids:
                # must be tuple
                assert (type_info.is_TupleType)

                ignore = [
                    i for i, subtype in enumerate(type_info) if subtype.is_Pid
                ]
                # builder.emit("{!s} = {!r}".format(ig_var.name, ig))

                right_operand = pyast.BinOp(left=place_type.pid_free_hash_expr(
                    env, self_var, ignore),
                                            op=pyast.Mult(),
                                            right=pyast.E(str(magic)))

                builder.emit(
                    pyast.AugAssign(target=[pyast.E("h")],
                                    op=pyast.BitXor(),
                                    value=right_operand))

            else:
                builder.emit(
                    pyast.E('h ^= hash(' +
                            place_type.field.access_from(self_var) + ') * ' +
                            str(magic)))

        builder.emit_Return(pyast.E("h"))
        builder.end_FunctionDef()
        return builder.ast()
Beispiel #5
0
def gen_check_function(checker_env, identifier, atom):

    marking_type = checker_env.marking_type

    variable_provider = VariableProvider()
    checker_env.push_cvar_env()
    checker_env.push_variable_provider(variable_provider)

    builder = cyast.Builder()
    marking_var = variable_provider.new_variable(
        variable_type=marking_type.type)

    function_name = "check_{}".format(identifier)
    builder.begin_FunctionCDef(name=function_name,
                               args=cyast.A(marking_var.name,
                                            type=checker_env.type2str(
                                                marking_var.type)),
                               returns=cyast.Name("int"),
                               decl=[],
                               public=False,
                               api=False)

    formula = atom.formula
    builder.emit(
        cyast.Return(gen_check_expression(checker_env, marking_var, formula)))

    builder.end_FunctionDef()
    tree = cyast.to_ast(builder)
    tree = flatten_ast(tree)

    checker_env.register_check_function(function_name,
                                        FunctionWrapper(function_name, tree))
    return tree
Beispiel #6
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def gen_check_function(checker_env, identifier, atom):

    marking_type = checker_env.marking_type

    variable_provider = VariableProvider()
    checker_env.push_cvar_env()
    checker_env.push_variable_provider(variable_provider)

    builder = cyast.Builder()
    marking_var = variable_provider.new_variable(variable_type = marking_type.type)

    function_name = "check_{}".format(identifier)
    builder.begin_FunctionCDef(name = function_name,
                               args = cyast.A(marking_var.name, type = checker_env.type2str(marking_var.type)),
                               returns = cyast.Name("int"),
                               decl = [],
                               public = False, api = False)

    formula = atom.formula
    builder.emit(cyast.Return(gen_check_expression(checker_env,
                                                   marking_var,
                                                   formula)))

    builder.end_FunctionDef()
    tree = cyast.to_ast(builder)
    tree = flatten_ast(tree)

    checker_env.register_check_function(function_name, FunctionWrapper(function_name, tree))
    return tree
    def generate(self, env):
        marking_type = env.marking_type

        items = list(marking_type.place_types.iteritems())
        items.sort(lambda (n1, t1), (n2, t2): cmp(n1, n2))

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, 'self')
        builder = cyast.Builder()
        builder.begin_FunctionDef(name='__dump__', args=cyast.A('self'))

        builder.emit(cyast.E('s = ["{"]'))
        for (place_name, place_type) in items:
            if place_type.is_revelant:
                builder.emit(
                    cyast.stmt(
                        cyast.Call(func=cyast.E('s.append'),
                                   args=[
                                       cyast.BinOp(
                                           left=cyast.Str(s=repr(place_name) +
                                                          " : "),
                                           op=cyast.Add(),
                                           right=cyast.BinOp(
                                               left=place_type.dump_expr(
                                                   env, self_var),
                                               op=cyast.Add(),
                                               right=cyast.Str(s=',')))
                                   ])))
        builder.emit(cyast.stmt(cyast.E('s.append("}")')))
        builder.emit_Return(cyast.E('"\\n".join(s)'))

        builder.end_FunctionDef()
        return cyast.to_ast(builder)
    def generate(self, env):
        marking_type = env.marking_type
        config       = marking_type.config
        
        vp        = VariableProvider()
        self_var  = vp.new_variable(env.marking_type.type, 'self')
        
        builder = pyast.Builder()
        
        builder.begin_FunctionDef( name = '__hash__', args = pyast.A(self_var.name).ast() )

        builder.begin_If(test=pyast.E('self.{} != None'.format(marking_type.get_field('_hash').name)))
        builder.emit_Return(pyast.E('self.{}'.format(marking_type.get_field('_hash').name)))
        builder.end_If()
        
        builder.emit( pyast.E('h = 0') )


        for name, place_type in marking_type.place_types.iteritems():
            if name == GENERATOR_PLACE and config.normalize_pids:
                continue
            
            magic = hash(name)
            builder.emit( pyast.E('h ^= hash(' + place_type.field.access_from(self_var) + ') * ' + str(magic) ) )

        builder.emit(pyast.E("self.{} = h".format(marking_type.get_field('_hash').name)))
        # builder.emit(pyast.E("print h"))
        builder.emit_Return(pyast.E("h"))
        builder.end_FunctionDef()
        return builder.ast()
    def generate(self, env):        
        marking_type = env.marking_type 
        
        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name='self')
        new_pid_dict_var = vp.new_variable(marking_type.type, name='new_pid_dict')

        builder = cyast.Builder()
        
        args = (cyast.A(self_var.name, type=env.type2str(self_var.type))
                .param(new_pid_dict_var.name, type=env.type2str(new_pid_dict_var.type)))
        
        function = builder.FunctionCDef(name='update_pids', args=args, returns=cyast.E("void"))
            
        body = []
        for place_type in marking_type.place_types.itervalues():
            print place_type
            if not place_type.allows_pids:
                continue
            #body.append( update_pids_stmt(env, place_type, self_var, new_pid_dict_var) )
        
        if not body:
            body = [cyast.Pass()]
        
        function.body = body
        import pprint, ast
        pprint.pprint(ast.dump(function))
        return function
Beispiel #10
0
    def generate(self, env):
        marking_type = env.marking_type
        config = marking_type.config

        vp = VariableProvider()
        self_var = vp.new_variable(env.marking_type.type, 'self')
        other_var = vp.new_variable(env.marking_type.type, 'other')

        function = pyast.FunctionDef(name='__eq__',
                                     args=pyast.A(self_var.name).param(
                                         other_var.name).ast())
        return_str = "return ("
        for i, (name,
                place_type) in enumerate(marking_type.place_types.iteritems()):
            if name == GENERATOR_PLACE and config.normalize_pids:
                continue

            id_name = place_type.field
            if i > 0:
                return_str += " and "
            return_str += "(%s == %s)" % (id_name.access_from(self_var),
                                          id_name.access_from(other_var))
        return_str += ")"

        function.body = [pyast.E(return_str)]
        return function
Beispiel #11
0
def gen_main_check_function(checker_env, id_prop_map):

    function_name = "neco_check"
    builder = cyast.Builder()
    variable_provider = VariableProvider()

    checker_env.push_cvar_env()
    checker_env.push_variable_provider(variable_provider)

    marking_var = variable_provider.new_variable(
        variable_type=checker_env.marking_type.type)
    atom_var = variable_provider.new_variable(
        variable_type=TypeInfo.get('Int'))

    builder.begin_FunctionCDef(
        name=function_name,
        args=(cyast.A(marking_var.name,
                      type=checker_env.type2str(marking_var.type)).param(
                          atom_var.name,
                          type=checker_env.type2str(TypeInfo.get('Int')))),
        returns=cyast.Name("int"),
        decl=[],
        public=True,
        api=True)

    for (i, (ident, _)) in enumerate(id_prop_map.iteritems()):
        if i == 0:
            builder.begin_If(
                test=cyast.Compare(left=cyast.Name(atom_var.name),
                                   ops=[cyast.Eq()],
                                   comparators=[cyast.Num(ident)]))
        else:
            builder.begin_Elif(
                test=cyast.Compare(left=cyast.Name(atom_var.name),
                                   ops=[cyast.Eq()],
                                   comparators=[cyast.Num(ident)]))

        builder.emit_Return(
            checker_env.get_check_function("check_{}".format(ident)).call(
                [cyast.Name(marking_var.name)]))

    for _ in id_prop_map:
        builder.end_If()

    builder.emit(
        cyast.Print(dest=cyast.E('sys.stderr'),
                    values=[
                        cyast.Str(s='!W! invalid proposition identifier'),
                        cyast.Name(atom_var.name)
                    ],
                    nl=True))
    builder.emit_Return(cyast.Num(n=0))

    builder.end_FunctionDef()
    tree = cyast.to_ast(builder)
    checker_env.register_check_function(function_name,
                                        FunctionWrapper(function_name, tree))
    return tree
Beispiel #12
0
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, 'self')
        other_var = vp.new_variable(marking_type.type, 'other')
        cmp_var = vp.new_variable(marking_type.type, 'tmp')

        builder = pyast.Builder()
        builder.begin_FunctionDef(name='pid_free_compare',
                                  args=pyast.A(self_var.name).param(
                                      other_var.name).ast())

        for place_type in marking_type.place_types.values():
            type_info = place_type.token_type
            print type_info, place_type
            if type_info.is_Pid:
                builder.emit(
                    pyast.Assign(targets=[pyast.E(cmp_var.name)],
                                 value=place_type.pid_free_compare_expr(
                                     env, self_var, other_var, [0])))
                builder.begin_If(test=pyast.E('{} != 0'.format(cmp_var.name)))
                builder.emit_Return(pyast.E(cmp_var.name))
                builder.end_If()

            elif type_info.has_pids:
                # must be tuple
                assert (type_info.is_TupleType)

                ignore = [
                    i for i, subtype in enumerate(type_info) if subtype.is_Pid
                ]
                # builder.emit("{!s} = {!r}".format(ig_var.name, ig))

                builder.emit(
                    pyast.Assign(targets=[pyast.E(cmp_var.name)],
                                 value=place_type.pid_free_compare_expr(
                                     env, self_var, other_var, ignore)))
                builder.begin_If(test=pyast.E('{} != 0'.format(cmp_var.name)))
                builder.emit_Return(pyast.E(cmp_var.name))
                builder.end_If()

            else:
                builder.emit(
                    pyast.Assign(targets=[pyast.E(cmp_var.name)],
                                 value=place_type.compare_expr(
                                     env, self_var, other_var)))
                builder.begin_If(test=pyast.E('{} != 0'.format(cmp_var.name)))
                builder.emit_Return(pyast.E(cmp_var.name))
                builder.end_If()

        builder.emit_Return(pyast.Num(0))
        builder.end_FunctionDef()

        return builder.ast()
    def generate(self, env):  
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name='self')
        tree_var = vp.new_variable(TypeInfo.get('AnyType'),  name='tree')
        pid_dict_var = vp.new_variable(TypeInfo.get('Dict'), name='pid_dict')

  
        function = cyast.Builder.FunctionCDef(name='normalize_pids',
                                              args=cyast.A(self_var.name, type=env.type2str(self_var.type)),
                                              returns=cyast.E('void'))
        body = []
        body.append(cyast.Assign(targets=[cyast.Name(id=tree_var.name)],
                               value=cyast.Call(func=cyast.Name(stubs['create_pid_tree']),
                                              args=[])))
        # build the tree
        for name, place_type in marking_type.place_types.iteritems():
            if not place_type.allows_pids:
                continue

            if name == GENERATOR_PLACE:
                body.append(cyast.stmt(cyast.Call(func=cyast.Name(stubs['generator_place_update_pid_tree']),
                                          args=[ place_type.place_expr(env, self_var), cyast.Name(id=tree_var.name) ] )))
            else:
                body.append( add_pids_to_tree(env, place_type, self_var, tree_var))

        # normalize tree and get dict
        body.append(cyast.Assign(targets=[cyast.Name(id=pid_dict_var.name)],
                                 value=cyast.Call(func=cyast.Name(stubs['normalize_pid_tree']),
                                                  args=[cyast.Name(tree_var.name)])))
        # update tokens with new pids
        for name, place_type in marking_type.place_types.iteritems():
            if not place_type.allows_pids:
                continue

            if name == GENERATOR_PLACE:
                body.append( cyast.Assign(targets=[ place_type.place_expr(env, self_var) ],
                                        value=cyast.Call(func=cyast.Name(stubs['generator_place_update_pids']),
                                                       args=[place_type.place_expr(env, self_var),
                                                             cyast.Name(pid_dict_var.name)]) ) )
            else:
                body.append( place_type.update_pids_stmt(env, self_var, pid_dict_var) )

        if not body:
            body = [cyast.Pass()]

        function.body = body
        
        function.body = [cyast.Pass()]
        return function
Beispiel #14
0
    def generate(self, env):
        marking_type = env.marking_type
        config = marking_type.config
        
        vp = VariableProvider()
        self_var  = vp.new_variable(env.marking_type.type, 'self')
        
        builder = pyast.Builder()
        
        builder.begin_FunctionDef( name = '__pid_free_hash__', args = pyast.A(self_var.name).ast() )
       
        builder.emit( pyast.E('h = 0') )
        
        
        for (name, place_type) in marking_type.place_types.iteritems():
            magic = hash(name)
            type_info = place_type.token_type

            if type_info.is_Pid:
                
                # builder.emit( pyast.E('h ^= hash(' +  place_type.field.access_from(self_var) + ') * ' + str(magic)) )
                
                right_operand = pyast.BinOp( left  = place_type.pid_free_hash_expr(env, self_var, [0]),
                                             op    = pyast.Mult(),
                                             right = pyast.E(str(magic)) )
                
                builder.emit( pyast.AugAssign( target = [pyast.E("h")],
                                               op     = pyast.BitXor(),
                                               value  = right_operand ) )

            elif type_info.has_pids:
                # must be tuple
                assert( type_info.is_TupleType )
                
                ignore = [ i for i, subtype in enumerate(type_info) if subtype.is_Pid ]
                # builder.emit("{!s} = {!r}".format(ig_var.name, ig))
                
                right_operand = pyast.BinOp( left  = place_type.pid_free_hash_expr(env, self_var, ignore),
                                             op    = pyast.Mult(),
                                             right = pyast.E(str(magic)) )
                
                builder.emit( pyast.AugAssign(target = [pyast.E("h")],
                                              op     = pyast.BitXor(),
                                              value  = right_operand ) )

            else:
                builder.emit( pyast.E('h ^= hash(' +  place_type.field.access_from(self_var) + ') * ' + str(magic)) )

        builder.emit_Return(pyast.E("h"))
        builder.end_FunctionDef()
        return builder.ast()
    def generate(self, env):
        marking_type = env.marking_type

        builder = cyast.Builder()
        vp = VariableProvider()
        self_var = vp.new_variable(variable_type=marking_type.type,
                                   name='self')
        marking_var = vp.new_variable(variable_type=marking_type.type,
                                      name='m')

        builder.begin_FunctionCDef(
            name="copy",
            args=cyast.A(self_var.name),
            returns=cyast.E(env.type2str(marking_type.type)),
            decl=[cyast.Builder.CVar(name='m', type='Marking')])

        builder.emit(cyast.E('m = Marking()'))

        copied = set()
        # copy packed
        # print marking_type.chunk_manager.packed_bits()
        if marking_type.chunk_manager.packed_bits() > 0:
            attr_name, _, count = marking_type.chunk_manager.packed_attribute()
            # print attr_name
            copied.add(attr_name)
            for i in range(count):
                target_expr = cyast.E('{object}.{attribute}[{index!s}]'.format(
                    object=marking_var.name, attribute=attr_name, index=i))
                value_expr = cyast.E('{object}.{attribute}[{index!s}]'.format(
                    object=self_var.name, attribute=attr_name, index=i))

                builder.emit(
                    cyast.Assign(targets=[target_expr], value=value_expr))

        # copy modified attributes
        for place_type in marking_type.place_types.itervalues():
            attr_name = place_type.get_attribute_name()
            if attr_name in copied:
                continue
            # print attr_name
            target_expr = cyast.E('{object}.{attribute}'.format(
                object=marking_var.name, attribute=attr_name))

            builder.emit(place_type.copy_stmt(env, marking_var, self_var))

        builder.emit_Return(cyast.E("m"))
        builder.end_FunctionDef()
        return cyast.to_ast(builder)
Beispiel #16
0
def gen_All_function(checker_env, function_name, place_name,
                     arg_function_name):
    marking_type = checker_env.marking_type
    variable_provider = VariableProvider()

    checker_env.push_cvar_env()
    checker_env.push_variable_provider(variable_provider)

    builder = cyast.Builder()
    marking_var = variable_provider.new_variable(
        variable_type=marking_type.type)

    place_type = marking_type.get_place_type_by_name(place_name)
    token_var = variable_provider.new_variable(
        variable_type=place_type.token_type)
    # check_var = variable_provider.new_variable(variable_type=TypeInfo.Int)

    builder.begin_FunctionCDef(name=function_name,
                               args=(cyast.A(marking_var.name,
                                             type=checker_env.type2str(
                                                 marking_var.type))),
                               returns=cyast.Name("int"),
                               decl=[],
                               public=False,
                               api=False)

    main_body = []

    loop_var = variable_provider.new_variable(
        variable_type=place_type.token_type)
    inner_body = cyast.If(
        cyast.UnaryOp(
            cyast.Not(),
            cyast.Name(arg_function_name + '(' + loop_var.name + ')')),
        [cyast.Return(cyast.Num(0))])
    node = place_type.enumerate_tokens(checker_env,
                                       loop_var,
                                       marking_var,
                                       body=inner_body)

    main_body.append(node)
    main_body.append(cyast.Return(value=cyast.Num(1)))

    for stmt in main_body:
        builder.emit(stmt)

    builder.end_FunctionDef()
    return cyast.to_ast(builder)
Beispiel #17
0
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name='self')
        tree_var = vp.new_variable(TypeInfo.get('AnyType'), name='tree')
        token_var = vp.new_variable(TypeInfo.get('AnyType'), name='token')
        pid_dict_var = vp.new_variable(TypeInfo.get('Dict'), name='pid_dict')

        tmp_pid_var = vp.new_variable(TypeInfo.get('Pid'), name='tpid')
        tmp_marking_var = vp.new_variable(TypeInfo.get('Marking'), name='tmkr')

        function = pyast.FunctionDef(name='buildPidTree',
                                     args=pyast.A(self_var.name).ast())
        body = []
        body.append(
            pyast.E("{} = defaultdict(Marking)".format(pid_dict_var.name)))
        body.append(pyast.E("{} = PidTree(0)".format(tree_var.name)))
        # build the tree
        for name, place_type in marking_type.place_types.iteritems():
            if not place_type.allow_pids:
                continue

            if name == GENERATOR_PLACE:
                enum_body = [
                    pyast.If(test=pyast.E('not {}.has_key({}[0])'.format(
                        pid_dict_var.name, token_var.name)),
                             body=[
                                 pyast.E("{}[ {}[0] ] = Marking(True)".format(
                                     pid_dict_var.name, token_var.name))
                             ]),
                    pyast.
                    E("{}[ Pid.from_list({}[0].data + [{}[1] + 1]) ] = 'next_pid'"
                      .format(pid_dict_var.name, token_var.name,
                              token_var.name))
                ]

                body.append(
                    place_type.enumerate(env, self_var, token_var, enum_body))
            else:
                body.append(
                    place_type.extract_pids(env, self_var, pid_dict_var))

        # body.append(pyast.E("print {}".format(pid_dict_var.name)))
        body.append(
            pyast.For(target=pyast.E('{}, {}'.format(tmp_pid_var.name,
                                                     tmp_marking_var.name)),
                      iter=pyast.E(
                          ('{}.iteritems()'.format(pid_dict_var.name))),
                      body=[
                          pyast.stmt(
                              pyast.E('{}.add_marking({}, {})'.format(
                                  tree_var.name, tmp_pid_var.name,
                                  tmp_marking_var.name)))
                      ]))
        body.append(pyast.E("return {}".format(tree_var.name)))
        function.body = body
        return function
Beispiel #18
0
    def generate(self, env):
        marking_type = env.marking_type

        function = pyast.FunctionDef(name = '__init__',
                                     args = pyast.A('self').param('alloc', default = 'True').ast())

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name = 'self')

        if_block = pyast.If(test = pyast.Name(id = 'alloc'))

        for place_type in marking_type.place_types.values():
            if_block.body.append(place_type.new_place_stmt(env, self_var))

        function.body = [ pyast.E('self.{} = None'.format(marking_type.get_field('_hash').name)), if_block ]
        return function
    def generate(self, env):
        marking_type = env.marking_type
        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, "self")

        builder = cyast.Builder()
        builder.begin_FunctionDef(name="__dealloc__",
                                  args=cyast.A("self", type="Marking"))

        for place_type in marking_type.place_types.itervalues():
            if place_type.is_packed or place_type.is_helper:
                pass
            else:
                builder.emit(
                    place_type.delete_stmt(env=env, marking_var=self_var))
        builder.end_FunctionDef()
        return cyast.to_ast(builder)
Beispiel #20
0
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var  = vp.new_variable(marking_type.type, 'self')
        other_var = vp.new_variable(marking_type.type, 'other')
        cmp_var   = vp.new_variable(marking_type.type, 'tmp')

        builder = pyast.Builder()
        builder.begin_FunctionDef(name = 'pid_free_compare',
                                  args = pyast.A(self_var.name).param(other_var.name).ast())

        for place_type in marking_type.place_types.values():
            type_info = place_type.token_type
            print type_info, place_type
            if type_info.is_Pid:
                builder.emit( pyast.Assign(targets = [pyast.E(cmp_var.name)],
                                           value   = place_type.pid_free_compare_expr(env, self_var, other_var, [0]) ) )
                builder.begin_If(test=pyast.E('{} != 0'.format(cmp_var.name)))
                builder.emit_Return( pyast.E(cmp_var.name) )
                builder.end_If()
            
            elif type_info.has_pids:
                # must be tuple
                assert( type_info.is_TupleType )
                
                ignore = [ i for i, subtype in enumerate(type_info) if subtype.is_Pid ]
                # builder.emit("{!s} = {!r}".format(ig_var.name, ig))

                builder.emit( pyast.Assign(targets = [pyast.E(cmp_var.name)],
                                           value   = place_type.pid_free_compare_expr(env, self_var, other_var, ignore) ) )
                builder.begin_If(test = pyast.E('{} != 0'.format(cmp_var.name)))
                builder.emit_Return(pyast.E(cmp_var.name))
                builder.end_If()

            else:
                builder.emit( pyast.Assign(targets = [pyast.E(cmp_var.name)],
                                           value   = place_type.compare_expr(env, self_var, other_var) ) )
                builder.begin_If(test=pyast.E('{} != 0'.format(cmp_var.name)))
                builder.emit_Return( pyast.E(cmp_var.name) )
                builder.end_If()

        builder.emit_Return(pyast.Num(0))
        builder.end_FunctionDef()

        return builder.ast()
    def extract_pids(self, env, marking_var, dict_var):
        place_expr = pyast.E(self.field.access_from(marking_var))

        vp = VariableProvider()
        token_var = vp.new_variable(TypeInfo.get('AnyType'), name='pid')

        place_in_dict_marking = self.field.access_from_str(
            "{pid_dict}[ {token} ]".format(pid_dict=dict_var.name,
                                           token=token_var.name))
        body = [
            pyast.stmt(
                pyast.E("{marking}.add({token})".format(
                    marking=place_in_dict_marking, token=token_var.name)))
        ]
        return pyast.For(target=pyast.E(token_var.name),
                         iter=place_expr,
                         body=body)
    def extract_pids(self, env, marking_var, dict_var):
        place_expr = pyast.E(self.field.access_from(marking_var))

        vp = VariableProvider()
        token_var = vp.new_variable(TypeInfo.get('AnyType'), name='token')

        if not self.token_type.has_pids:
            return []

        if self.token_type.is_Pid:
            raise RuntimeError
        elif self.token_type.is_TupleType:
            print "!!! TUPLE >> ", self.token_type

            for index, subtype in enumerate(self.token_type):
                body = []
                if subtype.is_Pid:
                    if index == 0:
                        # head is pid, owned token
                        place_in_dict_marking = self.field.access_from_str(
                            "{pid_dict}[ {token}[{index}] ]".format(
                                pid_dict=dict_var.name,
                                token=token_var.name,
                                index=index))
                        body.append(
                            pyast.stmt(
                                pyast.E("{marking}.add({token})".format(
                                    marking=place_in_dict_marking,
                                    token=token_var.name))))
                    else:
                        place_in_dict_marking = "{pid_dict}[ {token}[{index}] ]".format(
                            pid_dict=dict_var.name,
                            token=token_var.name,
                            index=index)
                        body.append(
                            pyast.E("{marking} = Marking(True)".format(
                                marking=place_in_dict_marking)))
                return pyast.For(target=pyast.E(token_var.name),
                                 iter=place_expr,
                                 body=body)

        else:
            print "!!! DATA >> ", self.token_type
            return []
Beispiel #23
0
def gen_main_check_function(checker_env, id_prop_map):

    function_name = "neco_check"
    builder = cyast.Builder()
    variable_provider = VariableProvider()

    checker_env.push_cvar_env()
    checker_env.push_variable_provider(variable_provider)

    marking_var = variable_provider.new_variable(variable_type = checker_env.marking_type.type)
    atom_var = variable_provider.new_variable(variable_type = TypeInfo.get('Int'))

    builder.begin_FunctionCDef(name = function_name,
                               args = (cyast.A(marking_var.name, type = checker_env.type2str(marking_var.type))
                                     .param(atom_var.name, type = checker_env.type2str(TypeInfo.get('Int')))),
                               returns = cyast.Name("int"),
                               decl = [],
                               public = True, api = True)

    for (i, (ident, _)) in enumerate(id_prop_map.iteritems()):
        if i == 0:
            builder.begin_If(test = cyast.Compare(left = cyast.Name(atom_var.name),
                                                ops = [ cyast.Eq() ],
                                                comparators = [ cyast.Num(ident) ]))
        else:
            builder.begin_Elif(test = cyast.Compare(left = cyast.Name(atom_var.name),
                                                  ops = [ cyast.Eq() ],
                                                  comparators = [ cyast.Num(ident) ]))

        builder.emit_Return(checker_env.get_check_function("check_{}".format(ident)).call([cyast.Name(marking_var.name)]))

    for _ in id_prop_map:
        builder.end_If()

    builder.emit(cyast.Print(dest = cyast.E('sys.stderr'),
                             values = [cyast.Str(s = '!W! invalid proposition identifier'),
                                     cyast.Name(atom_var.name)],
                             nl = True))
    builder.emit_Return(cyast.Num(n = 0))

    builder.end_FunctionDef()
    tree = cyast.to_ast(builder)
    checker_env.register_check_function(function_name, FunctionWrapper(function_name, tree))
    return tree
Beispiel #24
0
def gen_InPlace_function(checker_env, function_name, place_name):
    marking_type = checker_env.marking_type
    variable_provider = VariableProvider()

    checker_env.push_cvar_env()
    checker_env.push_variable_provider(variable_provider)

    builder = cyast.Builder()
    marking_var = variable_provider.new_variable(variable_type = marking_type.type)

    place_type = marking_type.get_place_type_by_name(place_name)
    token_var = variable_provider.new_variable(variable_type = place_type.token_type)
    # check_var = variable_provider.new_variable(variable_type=TypeInfo.Int)

    builder.begin_FunctionCDef(name = function_name,
                               args = (cyast.A(marking_var.name,
                                             type = checker_env.type2str(marking_var.type))
                                     .param(name = token_var.name,
                                            type = checker_env.type2str(token_var.type))),
                               returns = cyast.Name("int"),
                               decl = [],
                               public = False, api = False)

    main_body = []

    loop_var = variable_provider.new_variable(variable_type = place_type.token_type)
    inner_body = cyast.If(cyast.Compare(cyast.Name(token_var.name),
                                        [ cyast.Eq() ],
                                        [ cyast.Name(loop_var.name) ]),
                          [ cyast.Return(cyast.Num(1)) ])
    node = place_type.enumerate_tokens(checker_env,
                                       loop_var,
                                       marking_var,
                                       body = inner_body)

    main_body.append(node)
    main_body.append(cyast.Return(value = cyast.Num(0)))

    for stmt in main_body:
        builder.emit(stmt)

    builder.end_FunctionDef()
    return FunctionWrapper(function_name, cyast.to_ast(builder))
Beispiel #25
0
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name = 'self')
        marking_var = vp.new_variable(marking_type.type)

        function = pyast.FunctionDef(name = 'copy',
                                     args = pyast.A(self_var.name).param('alloc', default = 'True').ast())

        tmp = [ pyast.Assign(targets = [pyast.Name(id = marking_var.name)],
                             value = pyast.E('Marking(False)')) ]

        for place_type in marking_type.place_types.values():
            tmp.append(place_type.copy_stmt(env, marking_var, self_var))

        tmp.append(pyast.Return(pyast.Name(id = marking_var.name)))
        function.body = tmp
        return function
Beispiel #26
0
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        builder = cyast.Builder()
        left_marking_var = vp.new_variable(marking_type.type, "self")
        right_marking_var = vp.new_variable(marking_type.type, "other")

        builder.begin_FunctionCDef(name = "neco_marking_compare",
                                    args = (cyast.A("self", type = env.type2str(marking_type.type))
                                            .param(right_marking_var.name, type = env.type2str(marking_type.type))),
                                    returns = cyast.E("int"),
                                    public = True, api = True,
                                    decl = [ cyast.Builder.CVar(name = 'tmp', type = env.type2str(TypeInfo.get('Int'))) ])

        compared = set()
        tests = []
        if marking_type.chunk_manager.packed_bits() > 0:
            attr, _, count = marking_type.chunk_manager.packed_attribute()
            compared.add(attr)
            for index in range(0, count):
                left = cyast.E("{object}.{attribute}[{index}]".format(object = left_marking_var.name,
                                                                      attribute = attr,
                                                                      index = index))
                right = cyast.E("{object}.{attribute}[{index}]".format(object = right_marking_var.name,
                                                                       attribute = attr,
                                                                       index = index))
                tests.append(cyast.BinOp(left = left,
                                         op = cyast.Sub(),
                                         right = right))

        for place_type in marking_type.place_types.itervalues():
            if place_type.get_attribute_name() in compared:
                continue
            tests.append(place_type.compare_expr(env,
                                                 left_marking_var = left_marking_var,
                                                 right_marking_var = right_marking_var)
                         )

        tests.reverse()
        _gen_C_compare_aux(builder, tests)
        builder.end_FunctionDef()
        return cyast.to_ast(builder)
Beispiel #27
0
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, 'self')
        other_var = vp.new_variable(marking_type.type, 'other')

        function = pyast.FunctionDef(name = '__eq__', args = pyast.A(self_var.name).param(other_var.name).ast())

        return_str = "return ("
        for i, place_type in enumerate(marking_type.place_types.values()):
            if i > 0:
                return_str += " and "
            field = place_type.field
            return_str += "({} == {})".format(field.access_from(self_var),
                                              field.access_from(other_var))
        return_str += ")"

        function.body = [ pyast.E(return_str) ]
        return function
    def generate(self, env):
        marking_type = env.marking_type

        items = list(marking_type.place_types.iteritems())
        items.sort(lambda (n1, t1), (n2, t2): cmp(n1, n2))
        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, "self")

        builder = cyast.Builder()
        builder.begin_FunctionDef(name="__repr__",
                                  args=cyast.A(self_var.name,
                                               type=env.type2str(
                                                   marking_type.type)))
        builder.emit(cyast.E('s = "hdict({"'))

        visited = set()
        for i, (place_name, place_type) in enumerate(items):
            tmp = ',\n' if i > 0 else ''
            if place_type.is_packed:
                if place_type.pack in visited:
                    continue
                place = marking_type.gen_get_place(env,
                                                   marking_var=self_var,
                                                   place_name=place_name)
                str_call = cyast.E('str').call([place])
                builder.emit(
                    cyast.E('s').add_assign(
                        cyast.E("{tmp}'{place_name}' :".format(
                            tmp=tmp, place_name=place_name)).add(str_call)))
            else:
                builder.emit(
                    cyast.E('s').add_assign(
                        cyast.E(tmp + "'" + place_name + "' : ").add(
                            cyast.E('repr(self.{place})'.format(
                                place=marking_type.id_provider.get(
                                    place_type))))))

        builder.emit(cyast.E('s += "})"'))
        builder.emit_Return(cyast.E("s"))
        builder.end_FunctionDef()
        return cyast.to_ast(builder)
    def generate(self, env):
        marking_type = env.marking_type

        items = list(marking_type.place_types.iteritems())
        items.sort(lambda (n1, t1), (n2, t2): cmp(n1, n2))

        builder = cyast.Builder()
        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, "self")

        builder.begin_FunctionDef(name="__str__",
                                  args=cyast.A(self_var.name,
                                               type=env.type2str(
                                                   marking_type.type)))

        builder.emit(cyast.E('s = ""'))
        first = True
        for (place_name, place_type) in items:

            place_type = marking_type.get_place_type_by_name(place_name)

            if not place_type.is_revelant:
                continue

            if not first:
                builder.emit(cyast.E('s += ", "'))
            first = False

            builder.emit(cyast.E('s += %s' % repr(place_name + ': ')))
            builder.emit(
                cyast.AugAssign(target=cyast.Name('s'),
                                op=cyast.Add(),
                                value=cyast.Call(
                                    func=cyast.Name("str"),
                                    args=[place_type.dump_expr(env,
                                                               self_var)])))

        builder.emit_Return(cyast.E('s'))
        builder.end_FunctionDef()
        return cyast.to_ast(builder)
    def generate(self, env):
        marking_type = env.marking_type
        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, "self")

        builder = cyast.Builder()
        builder.begin_FunctionDef(name="__cinit__",
                                  args=cyast.A("self").param("alloc",
                                                             default="False"))

        builder.begin_If(cyast.Name('alloc'))

        initialized = set()
        # packed
        if marking_type.chunk_manager.packed_bits() > 0:
            (attr_name, _,
             count) = marking_type.chunk_manager.packed_attribute()
            initialized.add(attr_name)
            for index in range(0, count):
                builder.emit(
                    cyast.E("{object}.{attribute}[{index!s}] = 0".format(
                        object=self_var.name, attribute=attr_name,
                        index=index)))

        # init other places
        for place_type in marking_type.place_types.itervalues():
            attr_name = place_type.get_attribute_name()
            if attr_name in initialized:
                continue
            ################################################################################
            # assumes that packed types will always be initialized to 0 !!!
            ################################################################################
            builder.emit(place_type.new_place_stmt(env, self_var))
            builder.emit(
                builder.Comment("{} - 1s: {} - {}".format(
                    place_type.info.name, place_type.one_safe(),
                    place_type.info.type)))
        builder.end_If()
        builder.end_FunctionDef()
        return cyast.to_ast(builder)
Beispiel #31
0
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name='self')
        new_pid_dict_var = vp.new_variable(marking_type.type,
                                           name='new_pid_dict')

        function = pyast.FunctionDef(name='update_pids',
                                     args=pyast.A(self_var.name).param(
                                         new_pid_dict_var.name).ast())

        body = []
        for name, place_type in marking_type.place_types.iteritems():
            print place_type
            if not place_type.allow_pids:
                continue
            if name == GENERATOR_PLACE:
                body.append(
                    pyast.Assign(
                        targets=[place_type.place_expr(env, self_var)],
                        value=pyast.Call(func=pyast.Name(
                            stubs['generator_place_update_pids']),
                                         args=[
                                             place_type.place_expr(
                                                 env, self_var),
                                             pyast.Name(new_pid_dict_var.name)
                                         ])))
            else:
                body.append(
                    place_type.update_pids_stmt(env, self_var,
                                                new_pid_dict_var))

        if not body:
            body = [pyast.Pass()]

        function.body = body
        return function
Beispiel #32
0
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, 'self')

        builder = pyast.Builder()
        builder.begin_FunctionDef(name = '__hash__', args = pyast.A(self_var.name).ast())

        builder.begin_If(test = pyast.E('self.{} != None'.format(marking_type.get_field('_hash').name)))
        builder.emit_Return(pyast.E('self.{}'.format(marking_type.get_field('_hash').name)))
        builder.end_If()

        builder.emit(pyast.E('h = 0'))

        for (name, place_type) in marking_type.place_types.iteritems():
            magic = hash(name)
            builder.emit(pyast.E('h ^= hash(' + place_type.field.access_from(self_var) + ') * ' + str(magic)))

        # builder.emit(pyast.E("print h"))
        builder.emit_Return(pyast.E("h"))
        builder.end_FunctionDef()
        return builder.ast()
Beispiel #33
0
    def generate(self, env):
        marking_type = env.marking_type
        config       = marking_type.config
        
        vp        = VariableProvider()
        self_var  = vp.new_variable(env.marking_type.type, 'self')
        other_var = vp.new_variable(env.marking_type.type, 'other')
        
        function  = pyast.FunctionDef(name = '__eq__',
                                      args = pyast.A(self_var.name).param(other_var.name).ast())
        return_str = "return ("
        for i, (name, place_type) in enumerate(marking_type.place_types.iteritems()):
            if name == GENERATOR_PLACE and config.normalize_pids:
                continue
            
            id_name = place_type.field
            if i > 0:
                return_str += " and "
            return_str += "(%s == %s)" % (id_name.access_from(self_var), id_name.access_from(other_var))
        return_str += ")"

        function.body = [ pyast.E(return_str) ]
        return function
Beispiel #34
0
    def generate(self, env):  
        marking_type = env.marking_type

        vp           = VariableProvider()
        self_var     = vp.new_variable(marking_type.type, name='self')
        tree_var     = vp.new_variable(TypeInfo.get('AnyType'),  name='tree')
        token_var    = vp.new_variable(TypeInfo.get('AnyType'),  name='token')
        pid_dict_var = vp.new_variable(TypeInfo.get('Dict'), name='pid_dict')

        tmp_pid_var     = vp.new_variable(TypeInfo.get('Pid'), name='tpid')
        tmp_marking_var = vp.new_variable(TypeInfo.get('Marking'), name='tmkr')

        function = pyast.FunctionDef(name = 'buildPidTree',
                                     args = pyast.A(self_var.name).ast())
        body = []
        body.append( pyast.E("{} = defaultdict(Marking)".format(pid_dict_var.name)) )
        body.append( pyast.E("{} = PidTree(0)".format(tree_var.name)) )
        # build the tree
        for name, place_type in marking_type.place_types.iteritems():
            if not place_type.allow_pids:
                continue

            if name == GENERATOR_PLACE:
                enum_body = [ pyast.If(test=pyast.E('not {}.has_key({}[0])'.format(pid_dict_var.name, token_var.name)),
                                       body=[pyast.E("{}[ {}[0] ] = Marking(True)".format(pid_dict_var.name, token_var.name))]),
                              pyast.E("{}[ Pid.from_list({}[0].data + [{}[1] + 1]) ] = 'next_pid'".format(pid_dict_var.name, token_var.name, token_var.name)) ]

                body.append( place_type.enumerate( env, self_var, token_var, enum_body ) )
            else:
                body.append( place_type.extract_pids(env, self_var, pid_dict_var) )

        # body.append(pyast.E("print {}".format(pid_dict_var.name)))
        body.append(pyast.For(target=pyast.E('{}, {}'.format(tmp_pid_var.name, tmp_marking_var.name)),
                              iter=pyast.E(('{}.iteritems()'.format(pid_dict_var.name))),
                              body=[pyast.stmt(pyast.E('{}.add_marking({}, {})'.format(tree_var.name,
                                                                                       tmp_pid_var.name,
                                                                                       tmp_marking_var.name)))]))
        body.append(pyast.E("return {}".format(tree_var.name)))
        function.body = body
        return function
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, 'self')

        builder = cyast.Builder()
        builder.begin_FunctionDef(
            name="__hash__",
            args=cyast.A("self", type="Marking"),
            decl=[cyast.Builder.CVar(name='h', type='int')])

        builder.emit(cyast.E("h = 0xDEADDAD"))
        mult = 0xBADBEEF
        i = 0

        hashed = set()
        if marking_type.chunk_manager.packed_bits() > 0:
            attr_name, _, count = marking_type.chunk_manager.packed_attribute()
            hashed.add(attr_name)
            attr = "{}.{}".format(self_var.name, attr_name)

            for index in range(0, count):
                attr_expr = cyast.E('{!s}[{!s}]'.format(attr, index))
                builder.emit(
                    cyast.Assign(targets=[cyast.Name('h')],
                                 value=cyast.BinOp(left=cyast.BinOp(
                                     left=cyast.Name('h'),
                                     op=cyast.BitXor(),
                                     right=attr_expr),
                                                   op=cyast.Mult(),
                                                   right=cyast.Num(mult))))
                mult = (mult + (82520L + i + i)) % sys.maxint
                i += 1

        for place_type in marking_type.place_types.itervalues():
            #            if place_type.is_packed or place_type.is_helper:
            #                pass
            #            else:
            #                if place_type.type.is_Int or place_type.type.is_Short or place_type.type.is_Char:
            #                    native_place = marking_type.id_provider.get(place_type)
            #                    builder.emit(cyast.E('h = (h ^ self.{place_name}) * {mult}'.format(place_name=native_place,
            #                                                                                 mult=mult))
            #                                 )
            #                else:
            if place_type.get_attribute_name() in hashed:
                continue

            place_hash = place_type.hash_expr(env, marking_var=self_var)
            builder.emit(
                cyast.Assign(targets=[cyast.Name('h')],
                             value=cyast.BinOp(left=cyast.BinOp(
                                 left=cyast.Name('h'),
                                 op=cyast.BitXor(),
                                 right=place_hash),
                                               op=cyast.Mult(),
                                               right=cyast.Num(mult))))
            mult = (mult + (82521 * i + i)) % sys.maxint
            i += 1

        builder.emit_Return(cyast.E("h"))
        builder.end_FunctionDef()
        return cyast.to_ast(builder)
    def generate(self, env):
        marking_type = env.marking_type

        vp = VariableProvider()
        self_var = vp.new_variable(marking_type.type, name='self')
        tree_var = vp.new_variable(TypeInfo.get('AnyType'), name='tree')
        pid_dict_var = vp.new_variable(TypeInfo.get('Dict'), name='pid_dict')

        function = cyast.Builder.FunctionCDef(name='normalize_pids',
                                              args=cyast.A(self_var.name,
                                                           type=env.type2str(
                                                               self_var.type)),
                                              returns=cyast.E('void'))
        body = []
        body.append(
            cyast.Assign(targets=[cyast.Name(id=tree_var.name)],
                         value=cyast.Call(func=cyast.Name(
                             stubs['create_pid_tree']),
                                          args=[])))
        # build the tree
        for name, place_type in marking_type.place_types.iteritems():
            if not place_type.allows_pids:
                continue

            if name == GENERATOR_PLACE:
                body.append(
                    cyast.stmt(
                        cyast.Call(func=cyast.Name(
                            stubs['generator_place_update_pid_tree']),
                                   args=[
                                       place_type.place_expr(env, self_var),
                                       cyast.Name(id=tree_var.name)
                                   ])))
            else:
                body.append(
                    add_pids_to_tree(env, place_type, self_var, tree_var))

        # normalize tree and get dict
        body.append(
            cyast.Assign(targets=[cyast.Name(id=pid_dict_var.name)],
                         value=cyast.Call(func=cyast.Name(
                             stubs['normalize_pid_tree']),
                                          args=[cyast.Name(tree_var.name)])))
        # update tokens with new pids
        for name, place_type in marking_type.place_types.iteritems():
            if not place_type.allows_pids:
                continue

            if name == GENERATOR_PLACE:
                body.append(
                    cyast.Assign(
                        targets=[place_type.place_expr(env, self_var)],
                        value=cyast.Call(func=cyast.Name(
                            stubs['generator_place_update_pids']),
                                         args=[
                                             place_type.place_expr(
                                                 env, self_var),
                                             cyast.Name(pid_dict_var.name)
                                         ])))
            else:
                body.append(
                    place_type.update_pids_stmt(env, self_var, pid_dict_var))

        if not body:
            body = [cyast.Pass()]

        function.body = body

        function.body = [cyast.Pass()]
        return function