def test_execute_impermissible_command():
subject = CommandDispatcher()
subject.register(literal("foo").requires(lambda _: False))
try:
subject.execute("foo", {})
except CommandSyntaxException as error:
assert error.get_type() == BuiltInExceptions.dispatcher_unknown_command()
assert error.get_cursor() == 0
def test_execute_empty_command():
subject = CommandDispatcher()
subject.register(literal(""))
try:
subject.execute("", {})
except CommandSyntaxException as error:
assert error.get_type() == BuiltInExceptions.dispatcher_unknown_command()
assert error.get_cursor() == 0
def execute_preparsed(self, parse):
if parse.get_reader().can_read():
if len(parse.get_exceptions()) == 1:
raise list(parse.get_exceptions().values())[0]
elif not parse.get_context().get_range():
raise BuiltInExceptions.dispatcher_unknown_command(
).create_with_context(parse.get_reader())
else:
raise BuiltInExceptions.dispatcher_unknown_argument(
).create_with_context(parse.get_reader())
result = 0
successful_forks = 0
forked = False
found_command = False
command = parse.get_reader().get_string()
original = parse.get_context().build(command)
contexts = [original]
_next = None
while contexts is not None:
for context in contexts:
child = context.get_child()
if child is not None:
forked |= context.is_forked()
if child.has_nodes():
found_command = True
modifier = context.get_redirect_modifier()
if modifier is None:
if _next is None:
_next = []
_next.append(child.copy_for(context.get_source()))
else:
try:
results = modifier(context)
if results:
if _next is None:
_next = []
for source in results:
_next.append(child.copy_for(source))
except CommandSyntaxException as e:
self.consumer.on_command_complete(
context, False, 0)
if not forked:
raise e
elif context.get_command() is not None:
found_command = True
try:
value = context.get_command()(context)
result += value if value else 1
self.consumer.on_command_complete(context, True, value)
successful_forks += 1
except CommandSyntaxException as e:
self.consumer.on_command_complete(context, False, 0)
if not forked:
raise e
contexts = _next
_next = None
if not found_command:
self.consumer.on_command_complete(original, False, 0)
raise BuiltInExceptions.dispatcher_unknown_command(
).create_with_context(parse.get_reader())
return successful_forks if forked else result