def test_buffer_drains():
buffer = RotatingBuffer()
buffer.push(1)
buffer.push(2)
buffer.push(3)
assert list(buffer) == [1, 2, 3]
assert list(buffer) == []
def test_can_add_midway_through():
buffer = RotatingBuffer()
buffer.push(1)
buffer.push(2)
assert next(buffer) == 1
buffer.push(3)
assert list(buffer) == [2, 3]
def __init__(self):
self.compat = None
self.recorder = recorder.current
self.compat = self._invoke("jq_compat_new")
self.pending_objects = RotatingBuffer()
if self.recorder:
self.recorder.record_new(self.compat)
class JQ(object):
lib = ctypes.cdll.LoadLibrary(os.path.join(
os.path.dirname(__file__),
"compat.so"
))
lib.jq_compat_new.restype = ctypes.c_size_t
lib.jq_compat_compile.restype = int
lib.jq_compat_read_error.restype = ctypes.c_char_p
lib.jq_compat_read_output.restype = ctypes.c_char_p
def __init__(self):
self.compat = None
self.recorder = recorder.current
self.compat = self._invoke("jq_compat_new")
self.pending_objects = RotatingBuffer()
if self.recorder:
self.recorder.record_new(self.compat)
def __del__(self):
if self.compat:
self.invoke("del")
self.compat = None
def compile(self, program):
with self.__check_error(JQParseError):
self.invoke("compile", ctypes.c_char_p(program))
def write(self, value):
self.write_string(json.dumps(value))
def write_string(self, s):
with self.__check_error():
self.invoke(
"write",
len(s),
ctypes.c_char_p(s)
)
def __iter__(self):
data = map(json.loads, str(self.invoke("read_output")).splitlines())
for o in data:
self.pending_objects.push(o)
return self.pending_objects
def invoke(self, name, *args):
args = ((self.compat,) + args)
name = "jq_compat_" + name
if self.recorder:
self.recorder.record(name, args)
return self._invoke(name, *args)
def _invoke(self, name, *args):
return getattr(self.lib, name)(*args)
@contextmanager
def __check_error(self, exc=JQError):
self.invoke("clear_error")
yield
if self.lib.jq_compat_had_error(self.compat):
current_error = str(self.invoke("read_error"))
raise exc(str(current_error))