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1# Copyright (c) Facebook, Inc. and its affiliates. (http://www.facebook.com)
2from _builtins import _builtin
3
4
5class JSONDecodeError(ValueError):
6 """Subclass of ValueError with the following additional properties:
7
8 msg: The unformatted error message
9 doc: The JSON document being parsed
10 pos: The start index of doc where parsing failed
11 lineno: The line corresponding to pos
12 colno: The column corresponding to pos
13
14 """
15
16 # Note that this exception is used from _json
17 def __init__(self, msg, doc, pos):
18 lineno = doc.count("\n", 0, pos) + 1
19 colno = pos - doc.rfind("\n", 0, pos)
20 errmsg = f"{msg}: line {lineno} column {colno} (char {pos})"
21 super().__init__(errmsg)
22 self.msg = msg
23 self.doc = doc
24 self.pos = pos
25 self.lineno = lineno
26 self.colno = colno
27
28 def __reduce__(self):
29 return self.__class__, (self.msg, self.doc, self.pos)
30
31
32def _decode_with_cls(
33 s, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw
34):
35 if cls is None:
36 cls = _JSONDecoder
37 if object_hook is not None:
38 kw["object_hook"] = object_hook
39 if object_pairs_hook is not None:
40 kw["object_pairs_hook"] = object_pairs_hook
41 if parse_float is not None:
42 kw["parse_float"] = parse_float
43 if parse_int is not None:
44 kw["parse_int"] = parse_int
45 if parse_constant is not None:
46 kw["parse_constant"] = parse_constant
47 return cls(**kw).decode(s)
48
49
50def loads(
51 s,
52 *,
53 encoding=None,
54 cls=None,
55 object_hook=None,
56 parse_float=None,
57 parse_int=None,
58 parse_constant=None,
59 object_pairs_hook=None,
60 **kw,
61):
62 _builtin()
63
64
65from json.decoder import JSONDecoder as _JSONDecoder