Issue #1738 - Part 1: Improve performance of JSON stringify

- Use some pointer voodoo and instead of stringbuffer append()
- Use a lookup table instead of char comparisons for chr < 256
- Stop using a Hashtable/MovableCellHasher for JSON CycleDetector

1 files changed, 3 insertions, 0 deletions

diff --git a/js/src/tests/ecma_5/JSON/stringify.js b/js/src/tests/ecma_5/JSON/stringify.js
index 1a7e9b1500..3b21474206 100644
--- a/js/src/tests/ecma_5/JSON/stringify.js
+++ b/js/src/tests/ecma_5/JSON/stringify.js
@@ -34,6 +34,9 @@ assertStringify({'mmm\\mmm':"hmm"}, '{"mmm\\\\mmm":"hmm"}');
 assertStringify({'mmm\\mmm\\mmm':"hmm"}, '{"mmm\\\\mmm\\\\mmm":"hmm"}');
 assertStringify({"mm\u000bmm":"hmm"}, '{"mm\\u000bmm":"hmm"}');
 assertStringify({"mm\u0000mm":"hmm"}, '{"mm\\u0000mm":"hmm"}');
+assertStringify({"\u0000\u000b":""}, '{"\\u0000\\u000b":""}');
+assertStringify({"\u000b\ufdfd":"hmm"}, '{"\\u000b\ufdfd":"hmm"}');
+assertStringify({"\u000b\ufdfd":"h\xfc\ufdfdm"}, '{"\\u000b\ufdfd":"h\xfc\ufdfdm"}');
 
 var x = {"free":"variable"};
 assertStringify(x, '{"free":"variable"}');