def error(self, w_type, msg="", optargs=None):
if not optargs:
optargs = []
args_w = [self.newstr_fromstr(msg)] + optargs
w_exc = self.send(w_type, "new", args_w)
assert isinstance(w_exc, W_ExceptionObject)
return RubyError(w_exc)
def method_raise(self,
space,
w_str_or_exception=None,
w_string=None,
w_array=None):
w_exception = None
if w_str_or_exception is None:
w_exception = space.globals.get(space, "$!") or space.w_nil
if w_exception is space.w_nil:
w_exception = space.w_RuntimeError
elif isinstance(w_str_or_exception, W_StringObject):
w_exception = space.w_RuntimeError
w_string = w_str_or_exception
else:
w_exception = w_str_or_exception
if not space.respond_to(w_exception, "exception"):
raise space.error(space.w_TypeError,
"exception class/object expected")
if w_string is not None:
w_exc = space.send(w_exception, "exception", [w_string])
else:
w_exc = space.send(w_exception, "exception")
if w_array is not None:
raise space.error(space.w_NotImplementedError,
"custom backtrace for Kernel#raise")
if not isinstance(w_exc, W_ExceptionObject):
raise space.error(space.w_TypeError, "exception object expected")
raise RubyError(w_exc)