Follow-up for the previous question: Our python code is trying to call json.dumps to serialize the variable evaluation result into string block and send to IDE via RPC, however it failed with "UnicodeDecodeError: 'utf8' codec can't decode byte 0xc9 in position 10: invalid continuation byte" because SBValue.description seems to return non-utf-8 string:
(lldb) fr v *error: biggrep_master_server_async 0x10b9a91a: DW_TAG_member '_M_pod_data' refers to type 0x10bb1e99 which extends beyond the bounds of 0x10b9a901* *error: biggrep_master_server_async 0x10b98edc: DW_TAG_member 'small_' refers to type 0x10bb1d9f which extends beyond the bounds of 0x10b98ed3* *error: biggrep_master_server_async 0x10baf034: DW_TAG_member '__size' refers to type 0x10baf04d which extends beyond the bounds of 0x10baefae* (facebook::biggrep::BigGrepMasterAsync *) this = 0x00007fd14d374fd0 (const string &const) corpus = error: summary string parsing error: { store_ = { = { small_ = {} *ml_ = (data_ = "��UH\x89�H�}�H\x8bE�]ÐUH\x89�H��H\x89}�H\x8bE�H\x89��~\xb4��\x90��UH\x89�SH\x83�H\x89}�H�u�H�E�H���\x9e���H\x8b\x18H\x8bE�H���O\xb4��H\x89ƿ\b", size_ = 0, capacity_ = 1441151880758558720)* } } } File "/data/users/jeffreytan/fbsource/fbobjc/Tools/Nuclide/pkg/nuclide-debugger-lldb-server/scripts/chromedebugger.py", line 91, in received_message * response_in_json = json.dumps(response);* File "/usr/lib64/python2.6/json/__init__.py", line 230, in dumps return _default_encoder.encode(obj) File "/usr/lib64/python2.6/json/encoder.py", line 367, in encode chunks = list(self.iterencode(o)) File "/usr/lib64/python2.6/json/encoder.py", line 309, in _iterencode for chunk in self._iterencode_dict(o, markers): File "/usr/lib64/python2.6/json/encoder.py", line 275, in _iterencode_dict for chunk in self._iterencode(value, markers): File "/usr/lib64/python2.6/json/encoder.py", line 309, in _iterencode for chunk in self._iterencode_dict(o, markers): File "/usr/lib64/python2.6/json/encoder.py", line 275, in _iterencode_dict for chunk in self._iterencode(value, markers): File "/usr/lib64/python2.6/json/encoder.py", line 306, in _iterencode for chunk in self._iterencode_list(o, markers): File "/usr/lib64/python2.6/json/encoder.py", line 204, in _iterencode_list for chunk in self._iterencode(value, markers): File "/usr/lib64/python2.6/json/encoder.py", line 309, in _iterencode for chunk in self._iterencode_dict(o, markers): File "/usr/lib64/python2.6/json/encoder.py", line 275, in _iterencode_dict for chunk in self._iterencode(value, markers): File "/usr/lib64/python2.6/json/encoder.py", line 309, in _iterencode for chunk in self._iterencode_dict(o, markers): File "/usr/lib64/python2.6/json/encoder.py", line 275, in _iterencode_dict for chunk in self._iterencode(value, markers): File "/usr/lib64/python2.6/json/encoder.py", line 294, in _iterencode yield encoder(o) *UnicodeDecodeError: 'utf8' codec can't decode byte 0xc9 in position 10: invalid continuation byte* Question: Is the non utf-8 string expected or just gabage data because of the DW_TAG_member error? What is the proper way find out the string encoding and serialize using* json.dumps()*? Jeffrey
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