diff options
Diffstat (limited to 'Lib/json/decoder.py')
| -rw-r--r-- | Lib/json/decoder.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Lib/json/decoder.py b/Lib/json/decoder.py index 12fa815..a19cf0f 100644 --- a/Lib/json/decoder.py +++ b/Lib/json/decoder.py @@ -147,10 +147,14 @@ WHITESPACE_STR = ' \t\n\r' def JSONObject(s_and_end, strict, scan_once, object_hook, object_pairs_hook, - _w=WHITESPACE.match, _ws=WHITESPACE_STR): + memo=None, _w=WHITESPACE.match, _ws=WHITESPACE_STR): s, end = s_and_end pairs = [] pairs_append = pairs.append + # Backwards compatibility + if memo is None: + memo = {} + memo_get = memo.setdefault # Use a slice to prevent IndexError from being raised, the following # check will raise a more specific ValueError if the string is empty nextchar = s[end:end + 1] @@ -173,6 +177,7 @@ def JSONObject(s_and_end, strict, scan_once, object_hook, object_pairs_hook, end += 1 while True: key, end = scanstring(s, end, strict) + key = memo_get(key, key) # To skip some function call overhead we optimize the fast paths where # the JSON key separator is ": " or just ":". if s[end:end + 1] != ':': @@ -334,6 +339,7 @@ class JSONDecoder(object): self.parse_object = JSONObject self.parse_array = JSONArray self.parse_string = scanstring + self.memo = {} self.scan_once = make_scanner(self) |