Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/ijson/backends/yajl.py: 18%

1''' 

2Wrapper for YAJL C library version 1.x. 

3''' 

4 

5import ctypes 

6from ctypes import Structure, c_uint, byref 

7 

8from ijson import common, utils 

9from ijson.backends import _yajl2_ctypes_common 

10 

11 

12yajl = _yajl2_ctypes_common.get_yajl(1) 

13 

14class Config(Structure): 

15 _fields_ = [ 

16 ("allowComments", c_uint), 

17 ("checkUTF8", c_uint) 

18 ] 

19 

20 

21@utils.coroutine 

22def basic_parse_basecoro(target, allow_comments=False, multiple_values=False, 

23 use_float=False): 

24 ''' 

25 Iterator yielding unprefixed events. 

26 

27 Parameters: 

28 

29 - f: a readable file-like object with JSON input 

30 - allow_comments: tells parser to allow comments in JSON input 

31 - check_utf8: if True, parser will cause an error if input is invalid utf-8 

32 - buf_size: a size of an input buffer 

33 ''' 

34 if multiple_values: 

35 raise ValueError("yajl backend doesn't support multiple_values") 

36 callbacks, _keepalive = _yajl2_ctypes_common.make_callbaks(target.send, use_float, 1) 

37 config = Config(allow_comments, True) 

38 handle = yajl.yajl_alloc(byref(callbacks), byref(config), None, None) 

39 try: 

40 while True: 

41 try: 

42 buffer = (yield) 

43 except GeneratorExit: 

44 buffer = b'' 

45 if buffer: 

46 result = yajl.yajl_parse(handle, buffer, len(buffer)) 

47 else: 

48 result = yajl.yajl_parse_complete(handle) 

49 if result == _yajl2_ctypes_common.YAJL_ERROR: 

50 error = _yajl2_ctypes_common.yajl_get_error(yajl, handle, buffer) 

51 raise common.JSONError(error) 

52 elif not buffer: 

53 if result == _yajl2_ctypes_common.YAJL_INSUFFICIENT_DATA: 

54 raise common.IncompleteJSONError('Incomplete JSON data') 

55 break 

56 finally: 

57 yajl.yajl_free(handle) 

58 

59 

60common.enrich_backend( 

61 globals(), 

62 multiple_values=False, 

63 invalid_leading_zeros_detection=False, 

64 incomplete_json_tokens_detection=False, 

65 int64=ctypes.sizeof(ctypes.c_long) == 0, 

66)