def call(self, argv):
if self.instantiate is None:
if self.name == u'null':
raise space.unwind(space.LTypeError(u"cannot call null"))
raise space.unwind(
space.LTypeError(u"cannot instantiate " + self.name))
return self.instantiate(self, argv)
def setitem(self, index, value):
if not isinstance(index, Integer):
raise space.unwind(space.LTypeError(u"index not an integer"))
if not 0 <= index.value < len(self.contents):
raise space.unwind(space.LKeyError(self, index))
self.contents[index.value] = value
return value
def cast(x, cls, info=u"something"):
if isinstance(x, cls): # This here means that cast won't change object
return x # if it is already correct type.
try:
fn = cast_methods[cls]
except KeyError as _:
raise space.unwind(
space.LTypeError(u"expected %s is %s, got %s" %
(info, cls.interface.name, x.repr())))
res = fn(x)
if isinstance(res, cls):
return res
# TODO: Consider alternative ways to say it. :)
raise space.unwind(
space.LTypeError(
u"implicit conversion of %s at %s into %s returned %s" %
(x.repr(), info, cls.interface.name, res.repr())))
def to_int(obj):
if isinstance(obj, Float):
return int(obj.number)
elif isinstance(obj, Integer):
return obj.value
elif isinstance(obj, Boolean):
if is_true(obj):
return 1
else:
return 0
else:
raise space.unwind(space.LTypeError(u"expected int value"))
def to_float(obj):
if isinstance(obj, Float):
return obj.number
elif isinstance(obj, Integer):
return float(obj.value)
elif isinstance(obj, Boolean):
if is_true(obj):
return 1.0
else:
return 0.0
else:
raise space.unwind(space.LTypeError(u"expected float value"))
def as_i(obj):
if not isinstance(obj, space.Integer):
raise space.unwind(space.LTypeError(u"expected integer"))
return obj.value
def as_u8a(obj):
if not isinstance(obj, space.Uint8Data):
raise space.unwind(space.LTypeError(u"expected uint8array"))
return obj
def as_list(obj):
if not isinstance(obj, space.List):
raise space.unwind(space.LTypeError(u"expected list"))
return obj.contents
def contains(self, obj):
raise space.unwind(space.LTypeError(u"%s cannot contain" %
self.repr()))
def iter(self):
raise space.unwind(space.LTypeError(u"cannot iterate " + self.repr()))
def call(self, argv):
raise space.unwind(space.LTypeError(u"cannot call " + self.repr()))
