Ejemplo n.º 1
0
def in_lambda(string):
    return putinto(string, "lambda: %s")
Ejemplo n.º 2
0
def map_types(string):
    return putinto(string, "map(type, %s)")
Ejemplo n.º 3
0
def type_of(string):
    return putinto(string, "type(%s)")
Ejemplo n.º 4
0
def list_of(strings):
    return putinto(join(', ', strings), "[%s]")
Ejemplo n.º 5
0
def constructor_as_string(object, assigned_names={}):
    """For a given object (either a SerializedObject or a list of them) return
    a string representing a code that will construct it.

    >>> from test.helper import make_fresh_serialize
    >>> serialize = make_fresh_serialize()
    >>> m = Module(None, 'myclasses')

    It handles built-in types
        >>> constructor_as_string(serialize(123))
        '123'
        >>> constructor_as_string(serialize('string'))
        "'string'"
        >>> constructor_as_string([serialize(1), serialize('two')])
        "[1, 'two']"

    as well as instances of user-defined classes
        >>> obj = UserObject(None, Class('SomeClass', module=m))
        >>> constructor_as_string(obj)
        'SomeClass()'

    interpreting their arguments correctly
        >>> obj.add_call(MethodCall(Method('__init__', ['self', 'arg']), {'arg': serialize('whatever')}, serialize(None)))
        >>> constructor_as_string(obj)
        "SomeClass('whatever')"

    even if they're user objects themselves:
        >>> otherobj = UserObject(None, Class('SomeOtherClass', module=m))
        >>> otherobj.add_call(MethodCall(Method('__init__', ['self', 'object']), {'object': obj}, serialize(None)))
        >>> constructor_as_string(otherobj)
        "SomeOtherClass(SomeClass('whatever'))"

    or they are already named:
        >>> s = serialize("string")
        >>> anotherobj = UserObject(None, Class('AnotherClass', module=m))
        >>> anotherobj.add_call(MethodCall(Method('__init__', ['self', 's']), {'s': s}, serialize(None)))
        >>> constructor_as_string(anotherobj, {s: 's'})
        'AnotherClass(s)'

    Handles composite objects:
        >>> constructor_as_string(serialize([1, "a", None]))
        "[1, 'a', None]"

    even when they contain instances of user-defined classes:
        >>> constructor_as_string(SequenceObject([obj], lambda x:x))
        "[SomeClass('whatever')]"

    or other composite objects:
        >>> constructor_as_string(serialize((23, [4, [5]], {'a': 'b'})))
        "(23, [4, [5]], {'a': 'b'})"

    or already named objects:
        >>> seq = serialize(["a", None])
        >>> astring = seq.contained_objects[0]
        >>> constructor_as_string(seq, {astring: 'astring'})
        '[astring, None]'

    Empty tuples are recreated properly:
        >>> constructor_as_string(serialize((((42,),),)))
        '(((42,),),)'

    Recreated objects keep their import information:
        >>> cs = constructor_as_string(UserObject(None, Class('MyClass', module=m)))
        >>> cs
        'MyClass()'
        >>> cs.imports
        set([('myclasses', 'MyClass')])

    Library objects like xml.dom.minidom.Element are recreated properly as well:
        >>> from xml.dom.minidom import Element
        >>> constructor_as_string(serialize(Element("tag", "uri", "prefix")))
        "Element('tag', 'uri', 'prefix')"
    """
    if isinstance(object, list):
        return list_of(map(constructor_as_string, object))
    elif assigned_names.has_key(object):
        return CodeString(assigned_names[object])
    elif isinstance(object, UserObject):
        # Look for __init__ call and base the constructor on that.
        init_call = object.get_init_call()
        if init_call:
            cs = call_as_string_for(object.klass.name, init_call.input,
                init_call.definition, assigned_names)
        else:
            cs = call_as_string(object.klass.name, {})
        return addimport(cs, import_for(object.klass))
    elif isinstance(object, ImmutableObject):
        return CodeString(object.reconstructor, imports=object.imports)
    elif isinstance(object, (CompositeObject, LibraryObject)):
        arguments = join(', ', get_contained_objects_info(object, assigned_names))
        return putinto(arguments, object.constructor_format, object.imports)
    elif isinstance(object, GeneratorObject):
        if object.is_activated():
            cs = call_as_string_for(object.definition.name, object.args,
                object.definition)
            return addimport(cs, import_for(object.definition))
        else:
            return todo_value('generator')
    elif isinstance(object, UnknownObject):
        return todo_value(object.partial_reconstructor)
    else:
        raise TypeError("constructor_as_string expected SerializedObject at input, not %s" % object)
Ejemplo n.º 6
0
def constructor_as_string(object, assigned_names={}):
    """For a given object (either a SerializedObject or a list of them) return
    a string representing a code that will construct it.

    >>> from test.helper import make_fresh_serialize
    >>> serialize = make_fresh_serialize()
    >>> m = Module(None, 'myclasses')

    It handles built-in types
        >>> constructor_as_string(serialize(123))
        '123'
        >>> constructor_as_string(serialize('string'))
        "'string'"
        >>> constructor_as_string([serialize(1), serialize('two')])
        "[1, 'two']"

    as well as instances of user-defined classes
        >>> obj = UserObject(None, Class('SomeClass', module=m))
        >>> constructor_as_string(obj)
        'SomeClass()'

    interpreting their arguments correctly
        >>> obj.add_call(MethodCall(Method('__init__', ['self', 'arg']), {'arg': serialize('whatever')}, serialize(None)))
        >>> constructor_as_string(obj)
        "SomeClass('whatever')"

    even if they're user objects themselves:
        >>> otherobj = UserObject(None, Class('SomeOtherClass', module=m))
        >>> otherobj.add_call(MethodCall(Method('__init__', ['self', 'object']), {'object': obj}, serialize(None)))
        >>> constructor_as_string(otherobj)
        "SomeOtherClass(SomeClass('whatever'))"

    or they are already named:
        >>> s = serialize("string")
        >>> anotherobj = UserObject(None, Class('AnotherClass', module=m))
        >>> anotherobj.add_call(MethodCall(Method('__init__', ['self', 's']), {'s': s}, serialize(None)))
        >>> constructor_as_string(anotherobj, {s: 's'})
        'AnotherClass(s)'

    Handles composite objects:
        >>> constructor_as_string(serialize([1, "a", None]))
        "[1, 'a', None]"

    even when they contain instances of user-defined classes:
        >>> constructor_as_string(SequenceObject([obj], lambda x:x))
        "[SomeClass('whatever')]"

    or other composite objects:
        >>> constructor_as_string(serialize((23, [4, [5]], {'a': 'b'})))
        "(23, [4, [5]], {'a': 'b'})"

    or already named objects:
        >>> seq = serialize(["a", None])
        >>> astring = seq.contained_objects[0]
        >>> constructor_as_string(seq, {astring: 'astring'})
        '[astring, None]'

    Empty tuples are recreated properly:
        >>> constructor_as_string(serialize((((42,),),)))
        '(((42,),),)'

    Recreated objects keep their import information:
        >>> cs = constructor_as_string(UserObject(None, Class('MyClass', module=m)))
        >>> cs
        'MyClass()'
        >>> cs.imports
        set([('myclasses', 'MyClass')])

    Library objects like xml.dom.minidom.Element are recreated properly as well:
        >>> from xml.dom.minidom import Element
        >>> constructor_as_string(serialize(Element("tag", "uri", "prefix")))
        "Element('tag', 'uri', 'prefix')"
    """
    if isinstance(object, list):
        return list_of(map(constructor_as_string, object))
    elif assigned_names.has_key(object):
        return CodeString(assigned_names[object])
    elif isinstance(object, UserObject):
        # Look for __init__ call and base the constructor on that.
        init_call = object.get_init_call()
        if init_call:
            cs = call_as_string_for(object.klass.name, init_call.input,
                                    init_call.definition, assigned_names)
        else:
            cs = call_as_string(object.klass.name, {})
        return addimport(cs, import_for(object.klass))
    elif isinstance(object, ImmutableObject):
        return CodeString(object.reconstructor, imports=object.imports)
    elif isinstance(object, (CompositeObject, LibraryObject)):
        arguments = join(', ',
                         get_contained_objects_info(object, assigned_names))
        return putinto(arguments, object.constructor_format, object.imports)
    elif isinstance(object, GeneratorObject):
        if object.is_activated():
            cs = call_as_string_for(object.definition.name, object.args,
                                    object.definition)
            return addimport(cs, import_for(object.definition))
        else:
            return todo_value('generator')
    elif isinstance(object, UnknownObject):
        return todo_value(object.partial_reconstructor)
    else:
        raise TypeError(
            "constructor_as_string expected SerializedObject at input, not %s"
            % object)
Ejemplo n.º 7
0
def list_of(strings):
    return putinto(join(', ', strings), "[%s]")
Ejemplo n.º 8
0
def in_lambda(string):
    return putinto(string, "lambda: %s")
Ejemplo n.º 9
0
def type_of(string):
    return putinto(string, "type(%s)")
Ejemplo n.º 10
0
def map_types(string):
    return putinto(string, "map(type, %s)")