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23 Commits

Author SHA1 Message Date
Jesse Wilson
8daf3aaeb4 Inline position computation. This is uglier but faster. 2012-08-28 03:52:18 +00:00
Jesse Wilson
46b73632b0 Fix a bug where we weren't reading enough characters when a BOM was encountered. 2012-08-28 01:48:25 +00:00
Jesse Wilson
b0a172944a More number parsing improvements. 2012-08-27 03:17:41 +00:00
Jesse Wilson
4c2980e6ff Fix a bug in integer parsing. 2012-08-27 02:34:52 +00:00
Jesse Wilson
c7cb503cdb Restore fast skips. 
document            api      ns linear runtime
      TWEETS    GSON_STREAM  397568 =========
      TWEETS      GSON_SKIP  300058 =======
READER_SHORT    GSON_STREAM   76632 =
READER_SHORT      GSON_SKIP   57796 =
 READER_LONG    GSON_STREAM  894690 =====================
 READER_LONG      GSON_SKIP  565114 =============
 2012-08-27 01:17:50 +00:00
Jesse Wilson
085856c128 Don't leave the JsonReader in an invalid state if nextInt(), nextDouble() or nextLong() fails. We now save a reference to the string before we parse it, and keep that referenced value if parsing fails. 2012-08-26 22:06:57 +00:00
Jesse Wilson
b96d2d9837 Support non-execute prefixes. 2012-08-26 19:31:06 +00:00
Jesse Wilson
46b4346505 Get JsonReader2 to the point that it's passing most tests. 
Still missing: 
 - non-execute prefixes
 - rolling back 'pos' when a double fails to parse
 - octal prefix failures
 2012-08-26 04:02:09 +00:00
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