check for dupe keys

git-svn-id: http://simplejson.googlecode.com/svn/trunk@24 a4795897-2c25-0410-b006-0d3caba88fa1
simplejson · Apr 27, 2006 · 423da8c · 423da8c
1 parent bb0890c
commit 423da8c
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 0 deletions.
diff --git a/simplejson/decoder.py b/simplejson/decoder.py
@@ -138,6 +138,8 @@ def JSONObject(match, context, _w=WHITESPACE.match):
             value, end = iterscan(s, idx=end, context=context).next()
         except StopIteration:
             raise ValueError(errmsg("Expecting object", s, end))
+        if key in pairs:
+            raise ValueError(errmsg("Duplicate property name", s, end))
         pairs[key] = value
         end = _w(s, end).end()
         nextchar = s[end:end + 1]

diff --git a/simplejson/tests/test_fail.py b/simplejson/tests/test_fail.py
@@ -48,6 +48,8 @@
     '["Bad value", truth]',
     # http://json.org/JSON_checker/test/fail24.json
     "['single quote']",
+    # Not part of the JSON spec
+    '{"a": 1, "a": 1}',
 ]
 
 SKIPS = {