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47 Commits

Author SHA1 Message Date
verwaest@chromium.org
64f34cb761 Eagerly parse expected transitions in JSON. 
Review URL: https://chromiumcodereview.appspot.com/13741010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14191 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 16:49:28 +00:00
yangguo@chromium.org
bdc903b086 Improve SeqString::Truncate for latest allocated strings. 
R=hpayer@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12440061

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14088 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-28 11:19:38 +00:00
verwaest@chromium.org
a79d622720 Create a new HandleScope for each JSON-parsed object to avoid excessive growth 
Review URL: https://chromiumcodereview.appspot.com/12880019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14069 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-25 17:10:33 +00:00
rossberg@chromium.org
55f93b5532 Renamed "symbols" to "internalized strings" throughout the code base, 
in preparation of the introduction of ES6 'symbols' (aka private/unique names).

The SymbolTable became the StringTable. I also made sure to adapt all comments. The only remaining use of the term "symbol" (other than unrelated uses in the parser and such) is now 'NewSymbol' in the API and the 'V8.KeyedLoadGenericSymbol' counter, changing which might break embedders.

The one functional change in this CL is that I removed the former 'empty_string' constant, since it is redundant given the 'empty_symbol' constant that we also had (and both were used inconsistently).

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/12210083

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-28 17:03:34 +00:00
mstarzinger@chromium.org
ce1e10f5fc Make __proto__ a foreign callback on Object.prototype. 
This moves the __proto__ property to Object.prototype and turns it into
a callback property actually present in the descriptor array as opposed
to a hack in the properties lookup. For now it still is a "magic" data
property using foreign callbacks and not an accessor property visible to
JavaScript.

The second effect of this change is that JSON.parse() no longer treats
the __proto__ property specially, it will be defined as any other data
property. Note that object literals still have their special handling.

R=rossberg@chromium.org
BUG=v8:621,v8:1949,v8:2441
TEST=mjsunit,cctest,test262

Review URL: https://codereview.chromium.org/12212011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13728 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-26 10:46:00 +00:00
svenpanne@chromium.org
fb6776e84a Made Isolate a mandatory parameter for everything Handle-related. 
Unified parameter order of CreateHandle with the rest of v8 on the way. A few
Isolate::Current()s had to be introduced, which is not nice, and not every place
will win a beauty contest, but we can clean this up later easily in smaller steps.

Review URL: https://codereview.chromium.org/12300018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13717 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-25 14:46:09 +00:00
yangguo@chromium.org
e41c17084f Continues Latin-1 support. All tests pass with ENABLE_LATIN_1 flag. 
R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11818025
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13344 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-09 15:47:53 +00:00
yangguo@chromium.org
45f20e366a Introduce ENABLE_LATIN_1 compile flag 
Mostly a bunch of renaming when flag is disabled.

R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11759008
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13340 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-09 10:30:54 +00:00
yangguo@chromium.org
9569b20db2 Replace the use CharacterStreams in Heap::AllocateSymbolInternal and String::ComputeHash 
R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11593007
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13242 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-19 13:27:20 +00:00
yangguo@chromium.org
19a6575ea3 Rename LookupSymbol calls to use Utf8 or OneByte in names. 
R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11597007
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-17 15:56:16 +00:00
yangguo@chromium.org
3699616609 Rename SeqAsciiString 
This is a straight rename:

NewRawAsciiString -> NewRawOneByteString
SeqAscii -> SeqOneByte

SeqOneByteString cannot yet take non-ascii data.

R=yangguo@chromium.org,
BUG=

Review URL: https://chromiumcodereview.appspot.com/11411005
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12972 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-15 13:31:27 +00:00
yangguo@chromium.org
17fab1dfa1 Improve handle allocation in JSON.parse. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11358065

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12850 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 10:50:36 +00:00
yangguo@chromium.org
8ed2e560ea Treat leading zeros in JSON.parse correctly. 
R=verwaest@chromium.org
BUG=158185

Review URL: https://chromiumcodereview.appspot.com/11273075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12830 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-29 12:01:29 +00:00
yangguo@chromium.org
58c82e93b3 Catch stack overflow in JSON.parse. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11275039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-25 12:36:40 +00:00
mstarzinger@chromium.org
b55988625d Get rid of obsolete unchecked accessors. 
R=yangguo@chromium.org
BUG=v8:1490

Review URL: https://codereview.chromium.org/11271020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12813 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-25 11:52:37 +00:00
verwaest@chromium.org
362e8cb02a Pretenure JSON graph if the input string is larger than 100*1024 chars. 
Review URL: https://chromiumcodereview.appspot.com/11238031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12795 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-23 08:06:28 +00:00
verwaest@chromium.org
d33cda9338 Micro-optimizing the json parser 
Review URL: https://chromiumcodereview.appspot.com/11237002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12779 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 15:37:28 +00:00
verwaest@chromium.org
a0c9856bce Get the target field index when transitioning. 
Review URL: https://chromiumcodereview.appspot.com/11194080

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12772 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 10:48:18 +00:00
verwaest@chromium.org
fa53250dd2 Fixed json regression 
BUG=v8:2374

Review URL: https://chromiumcodereview.appspot.com/11186059

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12766 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-19 08:23:45 +00:00
verwaest@chromium.org
7bc94a92c5 Fixed error introduced in r12761. 
BUG=2373

Review URL: https://chromiumcodereview.appspot.com/11198068

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12765 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 18:43:19 +00:00
verwaest@chromium.org
852de2e1ab Adding a fast path for parsing index keys. 
Reduces overhead on http://code.google.com/p/chromium/issues/detail?id=156379 from 360ms down to 255ms.

Review URL: https://chromiumcodereview.appspot.com/11189039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12761 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 14:44:40 +00:00
yangguo@chromium.org
a7f3edb818 Make sure the fast case of ScanJsonString bails out to the slow case correctly. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11185050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12757 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 13:15:05 +00:00
verwaest@chromium.org
a38af4256c Fix typo in fast path for scanning json strings. 
Review URL: https://chromiumcodereview.appspot.com/11191055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 11:47:06 +00:00
verwaest@chromium.org
b61933ba10 Eagerly follow transitions to existing maps while json parsing. 
Review URL: https://chromiumcodereview.appspot.com/11184006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12747 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-17 14:09:42 +00:00
yangguo@chromium.org
29b6518874 Fix probing in JSON.parse. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10989032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-26 14:59:10 +00:00
yangguo@chromium.org
0f37cb0b79 Fix off-by-one error introduced in r12598. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10977009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12606 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-25 16:59:27 +00:00
yangguo@chromium.org
2473aa31b3 Fix failures caused by r12598. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10958070

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12599 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-24 15:03:09 +00:00
yangguo@chromium.org
681eda652d Fast path for symbol lookup in JSON.parse. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10969069

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12598 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-24 14:23:46 +00:00
rossberg@chromium.org
42552808ab Rename "global context" to "native context", 
in anticipation of the upcoming lexical global scope.

Mostly automatised as:

for FILE in `egrep -ril "global[ _]?context" src test/cctest`
do
  echo $FILE
  sed "s/Global context/Native context/g" <$FILE >$FILE.0
  sed "s/global context/native context/g" <$FILE.0 >$FILE.1
  sed "s/global_context/native_context/g" <$FILE.1 >$FILE.2
  sed "s/GLOBAL_CONTEXT/NATIVE_CONTEXT/g" <$FILE.2 >$FILE.3
  sed "s/GlobalContext/NativeContext/g" <$FILE.3 >$FILE
  rm $FILE.[0-9]
done

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10832342

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-17 09:03:08 +00:00
sanjoy@chromium.org
9e4fbb45c1 One Zone per CompilationInfo. 
The CompilationInfo record now saves a Zone, and the compiler pipeline
allocates memory from the Zone in the CompilationInfo.  Before
compiling a function, we create a Zone on the stack and save a pointer
to that Zone to the CompilationInfo; which then gets picked up and
allocated from.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10534139

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11877 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-20 08:58:41 +00:00
sanjoy@chromium.org
6125718f37 Remove TLS access for current Zone. 
By passing around a Zone object explicitly we no longer need to do a
TLS access at the sites that allocate memory from the current Zone.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10534006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11761 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-11 12:42:31 +00:00
erik.corry@gmail.com
70da367f6b More spelling changes. 
Review URL: http://codereview.chromium.org/9231009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-16 12:38:59 +00:00
ulan@chromium.org
746ef93362 Move handlified functions from handles.cc to objects.cc 
BUG=
TEST=

Review URL: http://codereview.chromium.org/9008012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10348 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-05 17:16:19 +00:00
lrn@chromium.org
ebc0f85e40 Revert "Added ability to lock strings to prevent their representation or encoding from changing." 
This reverts r9424.

Review URL: http://codereview.chromium.org/8143018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9529 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-05 11:09:34 +00:00
lrn@chromium.org
172c27a6ba Added ability to lock strings to prevent their representation or encoding from changing. 
Use string locking to ensure consistent representation of source string during JSON parsing.

Review URL: http://codereview.chromium.org/7977001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9424 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-26 11:14:41 +00:00
vegorov@chromium.org
ac36cb4504 Merge experimental/gc branch to the bleeding_edge. 
Review URL: http://codereview.chromium.org/7945009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-19 18:36:47 +00:00
lrn@chromium.org
e9bc76c499 Avoid infinite recursion for unterminated non-ASCII JSON string literals. 
BUG=91787
TEST=mjsunit/regress/regress-91787

Review URL: http://codereview.chromium.org/7569008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-05 12:55:29 +00:00
whesse@chromium.org
4cba3faf71 Ensure that a string is flattened when entering JsonParser::ParseJson. Fixes issue v8:1572. 
BUG=v8:1572
TEST=mjsunit/regress/regress-crbug-l84186.js

Review URL: http://codereview.chromium.org/7480044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8746 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-27 14:34:59 +00:00
lrn@chromium.org
877d6198e5 Extract string->double and double->string conversions for use in the preparser. 
Review URL: http://codereview.chromium.org/7308004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8534 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-05 11:54:11 +00:00
sandholm@chromium.org
f9c82bf3a3 Improve JSON.parse to use less memory when using escaped and non-ascii 
characters.
Review URL: http://codereview.chromium.org/7241023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8460 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-29 10:54:20 +00:00
lrn@chromium.org
fb4a2d160d Cleanup of return types and names in factory. 
Review URL: http://codereview.chromium.org/7240025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8426 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-27 09:02:34 +00:00
sandholm@chromium.org
a8921c4681 Inctroduce NewStrictSubstring to avoid check for SubString(str, 0, str.length). Cleanup JsonParser. 
Review URL: http://codereview.chromium.org/7230006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8369 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-22 14:20:23 +00:00
sandholm@chromium.org
b5144668cd Specialize JSON parser to only check for SequentialAsciiString once. 
Review URL: http://codereview.chromium.org/7134010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8214 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-08 08:09:48 +00:00
sandholm@chromium.org
f6901ea747 Untank compilation and fix JSON parse bug introduced in r8147. 
Review URL: http://codereview.chromium.org/7020028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-01 14:55:55 +00:00
sandholm@chromium.org
3ed8c2f520 Remove scanner abstraction layer from JSON parsing. 
Review URL: http://codereview.chromium.org/7020018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8147 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-01 14:06:30 +00:00
ricow@chromium.org
3f8a191725 Double allocation size for special json strings on every resize (fixes 
crbug 83877)

The issue was that with the relatively small start and increment size of the string we created a ton of string handles when scanning a large string with special characters (500k+ in this case).

In addition, since we can not be sure the the newly allocated string
is in newspace a check is introduced and if not a filler object is
inserted instead of shrinking.
Review URL: http://codereview.chromium.org/7075009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8082 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-26 14:03:30 +00:00
ricow@chromium.org
3c7e1d7015 Create stand-alone json parser (including scanner). 
The current json parser and scanner inherits fromt he normal scanners and parsers,
which are more complicated than we need for parsing json.

The supplied scanner works directly on the string supplied and has a
fast case mode for scanning only ascii characters (it will simply
create a substring or a symbol directly from the existing string). To
allow for creating symbols from a substring I have added a
SubStringAsciiSymbolKey that creates the hash based from our string
without extracting the sub-string. In case we need to add the symbol
it simply creates the symbol directly from the characters inside the
given string.
Review URL: http://codereview.chromium.org/7039037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8029 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-24 12:16:23 +00:00