Exemplo n.º 1
0
def veval_ast_listcomp(astc: 'AstContext', local_field: 'values.Field',
                       graph: 'Graph'):
    '''
    Ex. [x for x in xx]
    [elt for target in iter]
    '''
    assert (isinstance(astc.nast, gast.gast.ListComp))
    lineprop = utils.LineProperty(astc.lineno)

    listcomp_guid = str(utils.get_guid())
    listcomp_id = 'listcomp_' + listcomp_guid
    body_id = 'listcomp_body_' + listcomp_guid
    internal_iter_id = '@internal/iter_' + listcomp_guid

    generator = astc.nast.generators[0]
    iter_value = try_get_value(
        veval_ast(astc.c(generator.iter), local_field, graph), 'generator',
        lineprop)
    list_value = values.ListValue()
    list_obj = values.Object(list_value)

    node_generate_list = nodes.NodeGenerate('List', [], lineprop)
    node_generate_list.set_outputs([list_value])
    graph.add_node(node_generate_list)

    # body
    target_name = ''
    if isinstance(generator.target, gast.gast.Name):
        target_name = generator.target.id
    else:
        if config.show_warnings:
            print('This for is not supported. in L.{}'.format(astc.lineno))
        return None

    counter_value = values.NumberValue(0)
    counter_value.name = 'listcomp_counter_' + listcomp_guid

    cond_value = values.BoolValue(True)
    cond_value.name = 'listcomp_cond_' + listcomp_guid

    body_field = values.Field()
    body_field.set_module(local_field.module)
    body_field.set_parent(local_field)

    # set iter with internal name
    body_field.get_attribute(internal_iter_id).revise(list_obj)

    values.commit(listcomp_id)

    body_graph = Graph()
    body_graph.name = 'Body_' + listcomp_guid

    node_forgen = nodes.NodeForGenerator(counter_value, iter_value)
    target_value = values.Value()
    target_obj = values.Object(target_value)
    node_forgen.set_outputs([target_value])

    body_field.get_attribute(target_name).revise(target_obj)

    body_graph.add_node(node_forgen)

    elt = veval_ast(astc.c(astc.nast.elt), body_field, body_graph)
    elt_obj = try_get_obj(elt, 'listcomp', lineprop)

    farg = functions.FunctionArg()
    farg.name = ''
    farg.obj = elt_obj
    append_value = list_obj.get_field().get_attribute(
        'append').get_obj().get_value()
    append_value.func.vcall(local_field.module, body_graph, list_obj, [farg],
                            lineprop)

    values.commit(body_id)

    body_input_attributes = get_input_attritubtes(
        body_field, listcomp_id, body_id) + get_input_attritubtes(
            local_field, listcomp_id, body_id)
    body_output_attributes = get_output_attritubtes(
        body_field, listcomp_id, body_id) + get_output_attritubtes(
            local_field, listcomp_id, body_id)
    body_input_attributes = filter_attributes(body_input_attributes)
    body_output_attributes = filter_attributes(body_output_attributes)

    # get objects whose values are changed
    value_changed_objs = get_output_objs(body_field, listcomp_id,
                                         body_id) + get_output_objs(
                                             local_field, listcomp_id, body_id)

    changed_values = {}

    for obj in value_changed_objs:
        in_value = obj.get_value_log(listcomp_id)
        out_value = obj.get_value_log(body_id)
        changed_values[in_value] = (obj, out_value)

    output_attributes_2_values = {}

    for attribute in body_output_attributes:
        output_attributes_2_values[attribute] = attribute.get_obj().get_value()

    # get inputs
    values.checkout(listcomp_id)

    input_attributes_2_values = {}

    for attribute in body_input_attributes:
        input_attributes_2_values[attribute] = attribute.get_obj().get_value()

    # Exports
    values.checkout(listcomp_id)

    # generate attribute pairs
    name2attributes = {}

    for attribute in body_input_attributes:
        key = str(attribute.parent.id) + '_' + attribute.name

        if key in name2attributes.keys():
            name2attributes[key][0] = attribute
        else:
            name2attributes[key] = [attribute, None]

    for attribute in body_output_attributes:
        key = str(attribute.parent.id) + '_' + attribute.name

        if key in name2attributes.keys():
            name2attributes[key][1] = attribute
        else:
            name2attributes[key] = [None, attribute]

    # remove defaule values
    name_removing = []
    defaule_values = [counter_value, cond_value, iter_value]
    for k, v in name2attributes.items():
        if v[0] is not None and input_attributes_2_values[
                v[0]] in defaule_values:
            name_removing.append(k)

        if v[1] is not None and output_attributes_2_values[
                v[1]] in defaule_values:
            name_removing.append(k)

    for nr in name_removing:
        if nr in name2attributes.keys():
            name2attributes.pop(nr)

    #
    inputs = []
    outputs = []
    non_volatiles = []

    # default input for subgraph's input
    body_graph.add_input_value(counter_value)
    body_graph.add_input_value(cond_value)
    body_graph.add_input_value(iter_value)

    # default output for subgrap's output
    body_graph.add_output_value(cond_value)
    body_graph.add_output_value(iter_value)

    # default output
    outputs.append(functions.generate_value_with_same_type(iter_value))

    for attributes in name2attributes.values():
        name = ''
        parent = None
        input_value = None
        output_value = None

        if attributes[0] is not None:
            name = attributes[0].name
            parent = attributes[0].parent

        if attributes[1] is not None:
            name = attributes[1].name
            parent = attributes[1].parent

        if attributes[0] is not None:
            input_value = input_attributes_2_values[attributes[0]]
        else:
            # value with same type
            input_value = functions.generate_value_with_same_type(
                output_attributes_2_values[attributes[1]])

        if attributes[1] is not None:
            output_value = output_attributes_2_values[attributes[1]]
        else:
            if input_attributes_2_values[
                    attributes[0]] in changed_values.keys():
                # change only values
                output_value = changed_values[input_attributes_2_values[
                    attributes[0]]]
            else:
                # copy value
                output_value = input_attributes_2_values[attributes[0]]

        output_value_in_node = functions.generate_value_with_same_type(
            output_value)

        inputs.append(input_value)
        outputs.append(output_value_in_node)
        body_graph.add_input_value(input_value)
        body_graph.add_output_value(output_value)

        if attributes[1] is not None and attributes[1].is_non_volatile:
            non_volatiles.append(
                (attribute[1].initial_obj.get_value(), output_value_in_node))

        output_obj_in_node = values.Object(output_value_in_node)
        parent.get_attribute(name).revise(output_obj_in_node)

    for changed_value_in, changed_obj_value_out in changed_values.items():
        if changed_value_in is None:
            continue
        if changed_value_in in inputs:
            continue
        inputs.append(changed_value_in)
        body_graph.add_input_value(changed_value_in)
        body_graph.add_output_value(changed_obj_value_out[1])
        value = functions.generate_value_with_same_type(
            changed_obj_value_out[1])
        changed_obj_value_out[0].revise(value)
        outputs.append(value)

    node = nodes.NodeListcomp(iter_value, inputs, body_graph, astc.lineno)
    node.set_outputs(outputs)

    graph.add_node(node)

    # add non-volatiles
    for tv, v in non_volatiles:
        node_nv = nodes.NodeNonVolatileAssign(tv, v)
        graph.add_node(node_nv)

    if body_field.get_attribute(internal_iter_id).has_obj():
        return body_field.get_attribute(internal_iter_id).get_obj()
    else:
        return list_obj
Exemplo n.º 2
0
def veval_ast_if(astc: 'AstContext', local_field: 'values.Field',
                 graph: 'Graph'):
    assert (isinstance(astc.nast, gast.gast.If))
    lineprop = utils.LineProperty(astc.lineno)

    # if condition
    test = veval_ast(astc.c(astc.nast.test), local_field, graph)
    test_value = try_get_value(test, 'if', lineprop)

    id_str = str(utils.get_guid())
    if_id = 'if_' + id_str
    true_id = 'true_' + id_str
    false_id = 'false_' + id_str

    values.commit(if_id)

    # True condition
    values.checkout(if_id)
    true_graph = Graph()
    true_graph.name = 'True'
    body = veval_ast(astc.c(astc.nast.body), local_field, true_graph)

    values.commit(true_id)
    true_input_attributes = get_input_attritubtes(local_field, if_id, true_id)
    true_output_attributes = get_output_attritubtes(local_field, if_id,
                                                    true_id)
    true_output_objs = get_output_objs(local_field, if_id, true_id)

    #TODO(durswd): improve
    true_input_attributes = filter_attributes(true_input_attributes)
    true_output_attributes = filter_attributes(true_output_attributes)

    true_output_attributes_2_values = {}

    for attribute in true_output_attributes:
        true_output_attributes_2_values[attribute] = attribute.get_obj(
        ).get_value()

    # False condition
    values.checkout(if_id)
    false_graph = Graph()
    false_graph.name = 'False'
    orelse = veval_ast(astc.c(astc.nast.orelse), local_field, false_graph)

    values.commit(false_id)
    false_input_attributes = get_input_attritubtes(local_field, if_id,
                                                   false_id)
    false_output_attributes = get_output_attritubtes(local_field, if_id,
                                                     false_id)
    false_output_objs = get_output_objs(local_field, if_id, false_id)

    #TODO(durswd): improve
    false_input_attributes = filter_attributes(false_input_attributes)
    false_output_attributes = filter_attributes(false_output_attributes)

    false_output_attributes_2_values = {}

    for attribute in false_output_attributes:
        false_output_attributes_2_values[attribute] = attribute.get_obj(
        ).get_value()

    # Merge
    values.checkout(if_id)

    # Input
    input_attributes = set(true_input_attributes) | set(false_input_attributes)

    # remove unexisting values
    input_attributes = [v for v in input_attributes if v.has_obj()]
    input_values = [i.get_obj().get_value() for i in input_attributes]

    # Output
    name2output_attributes = {}

    # generate attribute pairs
    for attribute in true_output_attributes:
        key = str(attribute.parent.id) + '_' + attribute.name

        if key in name2output_attributes.keys():
            name2output_attributes[key][0] = attribute
        else:
            name2output_attributes[key] = [attribute, None]

    for attribute in false_output_attributes:
        key = str(attribute.parent.id) + '_' + attribute.name

        if key in name2output_attributes.keys():
            name2output_attributes[key][1] = attribute
        else:
            name2output_attributes[key] = [None, attribute]

    obj2output_values = {}
    for obj in true_output_objs:
        if obj.get_value() == None:
            continue

        key = obj
        value = obj.get_value_log(true_id)

        if key in obj2output_values.keys():
            obj2output_values[key][0] = value
        else:
            obj2output_values[key] = [value, None]

    for obj in false_output_objs:
        if obj.get_value() == None:
            continue

        key = obj
        value = obj.get_value_log(false_id)

        if key in obj2output_values.keys():
            obj2output_values[key][1] = value
        else:
            obj2output_values[key] = [None, value]

    output_attributes = set(true_output_attributes) | set(
        false_output_attributes)
    output_values = []

    non_volatiles = []

    for attribute_pair in name2output_attributes.values():
        true_attribute, false_attribute = attribute_pair
        name = ''
        parent = None  # type: values.Field

        if true_attribute is not None:
            name = true_attribute.name
            parent = true_attribute.parent

        if false_attribute is not None:
            name = false_attribute.name
            parent = false_attribute.parent

        if true_attribute is not None:
            true_value = true_output_attributes_2_values[true_attribute]
        else:
            if parent.has_attribute(name):
                true_value = parent.get_attribute(name).get_obj().get_value()

                if not true_value in input_values:
                    input_values.append(true_value)
            else:
                # TODO : it should be better
                # case
                # if xxx:
                #     y = 10
                # print(y)
                true_value = false_output_attributes_2_values[false_attribute]

        if false_attribute is not None:
            false_value = false_output_attributes_2_values[false_attribute]
        else:
            if parent.has_attribute(name):
                false_value = parent.get_attribute(name).get_obj().get_value()

                if not false_value in input_values:
                    input_values.append(false_value)

            else:
                # TODO : it should be better
                # case
                # if xxx:
                #     y = 10
                # print(y)
                false_value = true_output_attributes_2_values[true_attribute]

        true_graph.add_output_value(true_value)
        false_graph.add_output_value(false_value)

        if true_attribute is not None and false_attribute is not None and true_attribute != false_attribute:
            # dynamic
            value = functions.generate_value_with_same_type(true_value)
            output_values.append(value)
            parent.get_attribute(name).revise(values.Object(value))

        elif true_attribute is not None and false_attribute is not None:
            # change both
            value = functions.generate_value_with_same_type(true_value)
            output_values.append(value)

            if parent.get_attribute(name).is_non_volatile:
                non_volatiles.append(
                    (parent.get_attribute(name).initial_obj.get_value(),
                     value))

            parent.get_attribute(name).revise(values.Object(value))

        elif true_attribute in input_attributes:
            value = functions.generate_value_with_same_type(true_value)

            if parent.get_attribute(name).is_non_volatile:
                non_volatiles.append(
                    (parent.get_attribute(name).initial_obj.get_value(),
                     value))

            output_values.append(value)
            parent.get_attribute(name).revise(values.Object(value))
        else:
            value = functions.generate_value_with_same_type(false_value)

            if parent.get_attribute(name).is_non_volatile:
                non_volatiles.append(
                    (parent.get_attribute(name).initial_obj.get_value(),
                     value))

            output_values.append(value)
            parent.get_attribute(name).revise(values.Object(value))

    for input_value in input_values:
        true_graph.add_input_value(input_value)
        false_graph.add_input_value(input_value)

    for obj, values_pairs in obj2output_values.items():
        if not obj.get_value() in input_values:
            input_values.append(obj.get_value())

        value = None
        true_value = None
        false_value = None

        if values_pairs[0] is not None:
            value = values_pairs[0]
            true_value = values_pairs[0]
        if values_pairs[1] is not None:
            value = values_pairs[1]
            false_value = values_pairs[1]

        if true_value is None:
            true_value = obj.get_value()

        if false_value is None:
            false_value = obj.get_value()

        value = functions.generate_value_with_same_type(value)
        obj.revise(value)
        output_values.append(value)

        true_graph.add_output_value(true_value)
        false_graph.add_output_value(false_value)

    node = nodes.NodeIf(test_value, input_values, true_graph, false_graph,
                        astc.lineno)
    node.set_outputs(output_values)

    graph.add_node(node)

    # add non-volatiles
    for tv, v in non_volatiles:
        node_nv = nodes.NodeNonVolatileAssign(tv, v)
        graph.add_node(node_nv)

    return None
Exemplo n.º 3
0
def veval_ast_for(astc: 'AstContext', local_field: 'values.Field',
                  graph: 'Graph'):
    '''
    for target in iter:
        ...
    '''
    assert (isinstance(astc.nast, gast.gast.For))
    lineprop = utils.LineProperty(astc.lineno)

    # for target in iter:
    iter_ = veval_ast(astc.c(astc.nast.iter), local_field, graph)

    # get target name
    target_name = ''
    if isinstance(astc.nast.target, gast.gast.Name):
        target_name = astc.nast.target.id
    else:
        if config.show_warnings:
            print('This for is not supported. in L.{}'.format(astc.lineno))
        return None

    for_id = 'for_' + str(utils.get_guid())
    body_id = 'body_' + str(utils.get_guid())
    values.commit(for_id)

    # body
    body_graph = Graph()
    body_graph.name = 'Body'

    counter_value = values.NumberValue(0)
    counter_value.name = 'for_counter'

    cond_value = values.BoolValue(True)
    cond_value.name = 'for_cond'

    iter_value = try_get_value(iter_, 'for', lineprop)

    # create a node to lookup a value from sequence
    node_forgen = nodes.NodeForGenerator(counter_value, iter_value)

    # estimate type
    # TODO : more types
    if isinstance(iter_value, values.RangeValue):
        target_value = values.NumberValue(None)
        target_value.dtype = np.array(0).dtype
    else:
        target_value = values.Value()

    target_obj = values.Object(target_value)
    node_forgen.set_outputs([target_value])

    target_attribute = local_field.get_attribute(target_name)
    target_attribute.revise(target_obj)
    body_graph.add_node(node_forgen)

    # veval body
    body = veval_ast(astc.c(astc.nast.body), local_field, body_graph)

    values.commit(body_id)

    # get changed attributes
    body_input_attributes = get_input_attritubtes(local_field, for_id, body_id)
    body_output_attributes = get_output_attritubtes(local_field, for_id,
                                                    body_id)

    body_input_attributes = filter_attributes(body_input_attributes)
    body_output_attributes = filter_attributes(body_output_attributes)

    # get objects whose values are changed
    value_changed_objs = get_output_objs(local_field, for_id, body_id)

    changed_values = {}

    for obj in value_changed_objs:
        in_value = obj.get_value_log(for_id)
        out_value = obj.get_value_log(body_id)
        changed_values[in_value] = out_value

    # get outputs
    output_attributes_2_values = {}

    for attribute in body_output_attributes:
        output_attributes_2_values[attribute] = attribute.get_obj().get_value()

    # get inputs
    values.checkout(for_id)

    input_attributes_2_values = {}

    for attribute in body_input_attributes:
        input_attributes_2_values[attribute] = attribute.get_obj().get_value()

    # export
    values.checkout(for_id)

    # generate attribute pairs
    name2attributes = {}

    for attribute in body_input_attributes:
        key = str(attribute.parent.id) + '_' + attribute.name

        if key in name2attributes.keys():
            name2attributes[key][0] = attribute
        else:
            name2attributes[key] = [attribute, None]

    for attribute in body_output_attributes:
        key = str(attribute.parent.id) + '_' + attribute.name

        if key in name2attributes.keys():
            name2attributes[key][1] = attribute
        else:
            name2attributes[key] = [None, attribute]

    # remove defaule values
    name_removing = []
    defaule_values = [counter_value, cond_value, iter_value]
    for k, v in name2attributes.items():
        if v[0] in defaule_values:
            name_removing.append(k)

        if v[1] in defaule_values:
            name_removing.append(k)

    for nr in name_removing:
        if nr in name2attributes.keys():
            name2attributes.pop(nr)

    #
    inputs = []
    outputs = []
    non_volatiles = []

    # default input for subgraph's input
    body_graph.add_input_value(counter_value)
    body_graph.add_input_value(cond_value)
    body_graph.add_input_value(iter_value)

    # default output for subgrap's output
    body_graph.add_output_value(cond_value)
    body_graph.add_output_value(iter_value)

    # default output
    outputs.append(functions.generate_value_with_same_type(iter_value))

    for attributes in name2attributes.values():
        name = ''
        parent = None
        input_value = None
        output_value = None

        if attributes[0] is not None:
            name = attributes[0].name
            parent = attributes[0].parent

        if attributes[1] is not None:
            name = attributes[1].name
            parent = attributes[1].parent

        if attributes[0] is not None:
            input_value = input_attributes_2_values[attributes[0]]
        else:
            # value with same type
            input_value = functions.generate_value_with_same_type(
                output_attributes_2_values[attributes[1]])

        if attributes[1] is not None:
            output_value = output_attributes_2_values[attributes[1]]
        else:
            if input_attributes_2_values[
                    attributes[0]] in changed_values.keys():
                # change only values
                output_value = changed_values[input_attributes_2_values[
                    attributes[0]]]
            else:
                # copy value
                output_value = input_attributes_2_values[attributes[0]]

        output_value_in_node = functions.generate_value_with_same_type(
            output_value)

        inputs.append(input_value)
        outputs.append(output_value_in_node)
        body_graph.add_input_value(input_value)
        body_graph.add_output_value(output_value)

        if attributes[1] is not None and attributes[1].is_non_volatile:
            non_volatiles.append(
                (attributes[1].initial_obj.get_value(), output_value_in_node))

        output_obj_in_node = values.Object(output_value_in_node)
        parent.get_attribute(name).revise(output_obj_in_node)

    for changed_value_in, changed_value_out in changed_values.items():
        if changed_value_in is None:
            continue
        if changed_value_in in inputs:
            continue

        inputs.append(changed_value_in)
        body_graph.add_input_value(changed_value_in)
        body_graph.add_output_value(changed_value_out)
        value = functions.generate_value_with_same_type(changed_value_out)
        obj.revise(value)
        outputs.append(value)

    node = nodes.NodeFor(iter_value, inputs, body_graph, astc.lineno)
    node.set_outputs(outputs)

    graph.add_node(node)

    # add non-volatiles
    for tv, v in non_volatiles:
        node_nv = nodes.NodeNonVolatileAssign(tv, v)
        graph.add_node(node_nv)

    return None
Exemplo n.º 4
0
def veval_ast_for(astc : 'AstContext', local_field : 'values.Field', graph : 'Graph'):
    '''
    for target in iter:
        ...
    '''
    assert(isinstance(astc.nast, gast.gast.For))

    # for target in iter:
    iter_ = veval_ast(astc.c(astc.nast.iter), local_field, graph)

    # get target name
    target_name = ''
    if isinstance(astc.nast.target, gast.gast.Name):
        target_name = astc.nast.target.id
    else:
        if config.show_warnings:
            print('This for is not supported. in L.{}'.format(astc.lineno))
        return None

    for_id = 'for_' + str(utils.get_guid())
    body_id = 'body_' + str(utils.get_guid())
    values.commit(for_id)

    # Body
    body_graph = Graph()
    body_graph.name = 'Body'

    counter_value = values.NumberValue(0)
    counter_value.name = 'for_counter'

    cond_value = values.BoolValue(True)
    cond_value.name = 'for_cond'

    iter_value = iter_.get_value()

    # node to lookup a value from sequence
    node_forgen = nodes.NodeForGenerator(counter_value, iter_value)
    target_value = values.Value()
    node_forgen.set_outputs([target_value])

    target_attribute = local_field.get_attribute(target_name)
    target_attribute.revise(target_value)
    body_graph.add_node(node_forgen)

    body = veval_ast(astc.c(astc.nast.body), local_field, body_graph)

    values.commit(body_id)

    body_input_attributes = get_input_attritubtes(local_field, for_id, body_id)
    body_output_attributes = get_output_attritubtes(local_field, for_id, body_id)

    input_attributes_2_values = {}

    for attribute in body_input_attributes:
        input_attributes_2_values[attribute] = attribute.get_value()

    output_attributes_2_values = {}

    for attribute in body_output_attributes:
        output_attributes_2_values[attribute] = attribute.get_value()

    # Exports
    values.checkout(for_id)

    # generate attribute pairs
    name2attributes = {}

    for attribute in body_input_attributes:
        key = str(attribute.parent.id) + '_' + attribute.name

        if key in name2attributes.keys():
            name2attributes[key][0] = attribute
        else:
            name2attributes[key] = [attribute, None]

    for attribute in body_output_attributes:
        key = str(attribute.parent.id) + '_' + attribute.name

        if key in name2attributes.keys():
            name2attributes[key][1] = attribute
        else:
            name2attributes[key] = [None, attribute]

    # remove defaule values
    name_removing = []
    defaule_values = [counter_value, cond_value, iter_value]
    for k, v in name2attributes.items():
        if v[0] in defaule_values:
            name_removing.append(k)

        if v[1] in defaule_values:
            name_removing.append(k)

    for nr in name_removing:
        if nr in name2attributes.keys():
            name2attributes.pop(nr)

    #
    inputs = []
    outputs = []
    non_volatiles = []

    # default input for subgraph's input
    body_graph.add_input_value(counter_value)
    body_graph.add_input_value(cond_value)
    body_graph.add_input_value(iter_value)

    # default output for subgrap's output
    body_graph.add_output_value(cond_value)
    body_graph.add_output_value(iter_value)

    # default output
    outputs.append(functions.generate_value_with_same_type(iter_value))
    
    for attributes in name2attributes.values():
        name = ''
        parent = None
        input_value = None
        output_value = None

        if attributes[0] is not None:
            name = attributes[0].name
            parent = attributes[0].parent

        if attributes[1] is not None:
            name = attributes[1].name
            parent = attributes[1].parent

        if attributes[0] is not None:
            input_value = input_attributes_2_values[attributes[0]]
        else:
            # value with same type
            input_value = functions.generate_value_with_same_type(output_attributes_2_values[attributes[1]])

        if attributes[1] is not None:
            output_value = output_attributes_2_values[attributes[1]]
        else:
            # copy value
            output_value = input_attributes_2_values[attributes[0]]

        output_value_in_node = functions.generate_value_with_same_type(output_value)

        inputs.append(input_value)
        outputs.append(output_value_in_node)
        body_graph.add_input_value(input_value)
        body_graph.add_output_value(output_value)

        if attributes[1].is_non_volatile:
            non_volatiles.append((attribute[1].initial_value,output_value_in_node))

        attributes[1].parent.get_attribute(name).revise(output_value_in_node)

    node = nodes.NodeFor(iter_value, inputs, body_graph, astc.lineno)
    node.set_outputs(outputs)

    graph.add_node(node)

    # add non-volatiles
    for tv, v in non_volatiles:
        node_nv = nodes.NodeNonVolatileAssign(tv, v)
        graph.add_node(node_nv)

    return None
Exemplo n.º 5
0
def veval_ast_for(astc: 'AstContext', local_field: 'values.Field',
                  graph: 'Graph'):
    '''
    for target in iter:
        ...
    '''
    assert (isinstance(astc.nast, gast.gast.For))

    # for target in iter:
    iter_ = veval_ast(astc.c(astc.nast.iter), local_field, graph)

    # get target name
    target_name = ''
    if isinstance(astc.nast.target, gast.gast.Name):
        target_name = astc.nast.target.id
    else:
        if config.show_warnings:
            print('This for is not supported. in L.{}'.format(astc.lineno))
        return None

    for_id = 'for_' + str(utils.get_guid())
    body_id = 'body_' + str(utils.get_guid())
    values.commit(for_id)

    # Body
    body_graph = Graph()
    body_graph.name = 'Body'

    counter_value = values.NumberValue(0)
    counter_value.name = 'for_counter'

    cond_value = values.BoolValue(True)
    cond_value.name = 'for_cond'

    iter_value = iter_.get_value()

    node_forgen = nodes.NodeForGenerator(counter_value, iter_value)
    target_value = values.Value()
    node_forgen.set_outputs([target_value])

    target_attribute = local_field.get_attribute(target_name)
    target_attribute.revise(target_value)
    body_graph.add_node(node_forgen)

    body = veval_ast(astc.c(astc.nast.body), local_field, body_graph)

    values.commit(body_id)

    body_output_attributes = get_input_attritubtes(local_field, for_id,
                                                   body_id)
    body_intput_attributes = get_output_attritubtes(local_field, for_id,
                                                    body_id)

    input_attributes_2_values = {}

    for attribute in body_intput_attributes:
        input_attributes_2_values[attribute] = attribute.get_value()

    output_attributes_2_values = {}

    for attribute in body_output_attributes:
        output_attributes_2_values[attribute] = attribute.get_value()

    # Exports
    values.checkout(for_id)

    input_attributes = set(body_intput_attributes)
    inputs = [i.get_value() for i in input_attributes if i.has_value()]

    output_attributes = body_output_attributes
    output_attributes.remove(target_attribute)
    output_attributes = [target_attribute] + output_attributes
    outputs = []

    non_volatiles = []

    # default output
    body_graph.add_output_value(cond_value)
    body_graph.add_output_value(iter_value)

    for attribute in output_attributes:
        name = attribute.name
        body_graph.add_output_value(output_attributes_2_values[attribute])
        value = functions.generate_value_with_same_type(
            output_attributes_2_values[attribute])
        outputs.append(value)

        if attribute.is_non_volatile:
            non_volatiles.append((attribute.initial_value, value))

        attribute.parent.get_attribute(name).revise(value)

    # default input
    '''
    body_graph.add_input_value(counter_value)
    body_graph.add_input_value(cond_value)
    body_graph.add_input_value(iter_value)

    inputs.remove(counter_value)
    inputs.remove(cond_value)
    inputs.remove(iter_value)
    '''

    for input in inputs:
        body_graph.add_input_value(input)

    node = nodes.NodeFor(iter_value, inputs, body_graph, astc.lineno)
    node.set_outputs(outputs)

    graph.add_node(node)

    # add non-volatiles
    for tv, v in non_volatiles:
        node_nv = nodes.NodeNonVolatileAssign(tv, v)
        graph.add_node(node_nv)

    return None
Exemplo n.º 6
0
def veval_ast_listcomp(astc: 'AstContext', local_field: 'values.Field',
                       graph: 'Graph'):
    '''
    Ex. [x for x in xx]
    [elt for target in iter]
    '''
    assert (isinstance(astc.nast, gast.gast.ListComp))
    lineprop = utils.LineProperty(astc.lineno)

    listcomp_id = 'listcomp_' + str(utils.get_guid())
    body_id = 'listcomp_body_' + str(utils.get_guid())

    values.commit(listcomp_id)

    generator = astc.nast.generators[0]
    iter_value = try_get_value(
        veval_ast(astc.c(generator.iter), local_field, graph), 'generator',
        lineprop)
    list_value = values.ListValue()

    node_generate_list = nodes.NodeGenerate('List', [], lineprop)
    graph.add_node(node_generate_list)
    node_generate_list.set_outputs([list_value])

    # body
    target_name = ''
    if isinstance(generator.target, gast.gast.Name):
        target_name = generator.target.id
    else:
        if config.show_warnings:
            print('This for is not supported. in L.{}'.format(astc.lineno))
        return None

    counter_value = values.NumberValue(0)
    counter_value.name = 'for_counter'

    node_forgen = nodes.NodeForGenerator(counter_value, iter_value)
    target_value = values.Value()
    node_forgen.set_outputs([target_value])

    body_field = values.Field()
    body_field.set_module(local_field.module)
    body_field.set_parent(local_field)
    body_field.get_attribute(target_name).revise(target_value)
    body_graph = Graph()
    body_graph.name = 'Body'

    body_graph.add_node(node_forgen)

    elt = veval_ast(astc.c(astc.nast.elt), body_field, body_graph)
    farg = functions.FunctionArg()
    farg.name = ''
    farg.value = elt
    list_value.append_func.func.vcall(local_field.module, body_graph,
                                      list_value, [farg], lineprop)

    values.commit(body_id)

    body_output_attributes = get_input_attritubtes(body_field, listcomp_id,
                                                   body_id)
    body_intput_attributes = get_output_attritubtes(body_field, listcomp_id,
                                                    body_id)

    # Exports
    values.checkout(listcomp_id)

    input_attributes = set(body_intput_attributes)
    inputs = [i.get_value() for i in input_attributes]

    output_attributes = set(body_output_attributes)
    outputs = []

    for attribute in output_attributes:
        value = values.Value()
        outputs.append(value)
        attribute.revise(value)

    node = nodes.NodeListcomp(iter_value, inputs, body_graph, astc.lineno)
    node.set_outputs(outputs)

    graph.add_node(node)

    # compare

    return list_value