Commit Graph

15 Commits

Author SHA1 Message Date
Jesse Wilson
c5c65ba626 Add an experimental rewrite of JsonReader.
The motivating difference is that JsonReaderV2 tries to read each character at most once. This means that when it reads literals, it also attempts to decode them to a keyword (true/false/null) or a number.

This change also _doesn't_ read strings until demanded to do so. This should permit streaming access to strings down the road.

This code is not yet complete, nor is has it been properly optimized. And the implementation is also quite a mess! It is a work in progress.
2012-08-25 04:31:56 +00:00
Jesse Wilson
15e7819e9a Fix testStringEndingInSlash by fixing nextNonWhitespace to always return the character at buffer[pos-1]. 2012-02-16 22:49:53 +00:00
Jesse Wilson
7b75efd09e Write some tests prescribed by missing code coverage. I found a bug where our nonexecute prefix code causes a problem. 2012-02-11 20:15:39 +00:00
Jesse Wilson
8d5de3136c Inline character unescaping. This saves ~10% on the READER_LONG benchmark. 2011-12-25 07:09:46 +00:00
Jesse Wilson
13c1946621 More tests that skipValue() is no less strict. 2011-12-21 21:43:55 +00:00
Jesse Wilson
dd9ae67af5 Test that skipValue is strict on unquoted strings. 2011-12-21 20:40:33 +00:00
Jesse Wilson
ec42d600af Decode JSON literal types eagerly and with our own decoder. Previously we relied on Double.parseDouble() to decode tokens. Since that method is expensive, we deferred calling it unless absolutely necessary. Now we decode the literal type immediately. For efficiency we decode the token right out of the char buffer. This makes things more complicated but it saves many calls to charAt(). It also opens up the possibility to deferring string creation. 2011-11-27 16:50:45 +00:00
Jesse Wilson
befcfd908b Skip a byte order mark (BOM) if it exists.
http://code.google.com/p/android/issues/detail?id=18508
2011-07-20 18:57:30 +00:00
Jesse Wilson
415437810a Include line and column position in error messages. 2011-07-18 19:26:02 +00:00
Jesse Wilson
b649f2768c Support unquoted single word strings in lenient mode!
Fixes issue 282.
2011-02-10 01:36:27 +00:00
Inderjeet Singh
8380d28e6f removed compiler warnings 2010-12-06 19:47:41 +00:00
Joel Leitch
0a3f5fa801 Required strings to be quoted even in lenient mode.
As far as Inderjeet and I can tell, this is consistent with Gson 1.5.
2010-11-16 22:14:40 +00:00
Inderjeet Singh
7b99419aea Removed compiler warnings. 2010-11-03 23:14:42 +00:00
Jesse Wilson
7a7bbf754c Use JsonReader internally rather than JsonParserJavacc.
For raw parsing (ie. new JsonParser().parse()) the parse time has improved substantially. For example, JsonParserJavacc parsed my 48KiB buzz feed in 4.8ms. JsonReader parses the same feed in 0.9ms.

http://microbenchmarks.appspot.com/run/limpbizkit@gmail.com/com.google.gson.GsonBenchmark/430001
2010-08-27 05:59:18 +00:00
Jesse Wilson
765a9f1ecd Brand new classes for streaming JSON efficiently.
Notable features:
 - Efficiency. The parser is faster than the current javacc parser. It's also faster than popular libraries for JSON streaming.
 - Toggle lenient/strict
 - Toggle pretty/compact
 - Friendly error messages on bad JSON
 - GSON-quality Javadoc
 - Non-execute prefix handling

This doesn't wire JsonReader up into Gson just yet. That's coming soon...
2010-08-26 08:44:02 +00:00