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adamk@chromium.org c001d928df Object.observe: don't unnecessarily emit oldValue for reconfigurations of data properties
When a data property has its attributes changed but its value remains the same,
don't emit an oldValue. This makes the API more consistent by only emitting
oldValue when the value of a property has actually changed (or been removed,
in the case of a reconfiguration as an accessor property or a deletion).

Review URL: https://codereview.chromium.org/11820004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13565 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-01-30 21:07:28 +00:00
benchmarks More fixes for V8 benchmark version 7. 2012-03-15 17:13:50 +00:00
build Unify the shebang line of python scripts 2013-01-29 10:40:43 +00:00
include Add Isolate parameter to Persistent class. 2013-01-25 08:31:46 +00:00
preparser Fix a bunch of implicit casts detected by the Win64 compiler 2012-06-19 13:45:30 +00:00
samples Add Isolate parameter to Persistent class. 2013-01-25 08:31:46 +00:00
src Object.observe: don't unnecessarily emit oldValue for reconfigurations of data properties 2013-01-30 21:07:28 +00:00
test Object.observe: don't unnecessarily emit oldValue for reconfigurations of data properties 2013-01-30 21:07:28 +00:00
tools Parallel and concurrent sweeping. 2013-01-30 12:19:32 +00:00
.gitignore git should ignore .d8_history (d8 readline history) 2012-11-13 21:43:38 +00:00
AUTHORS Add Makefile options to build for the Raspberry Pi (armv7=0, arm_fpu=vfp2). 2013-01-03 08:56:05 +00:00
ChangeLog Prepare push to trunk. Now working on version 3.16.12. 2013-01-30 09:35:15 +00:00
DEPS Pull more recent gyp. 2012-09-26 09:12:45 +00:00
LICENSE Update LICENSE file 2012-01-03 16:38:42 +00:00
LICENSE.strongtalk Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.valgrind Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
Makefile Remove support for Live Object List and inspector module. 2013-01-16 15:44:26 +00:00
Makefile.android Change the Android makefile to use GCC 4.6 instead of GCC 4.4.3. 2012-10-02 13:20:27 +00:00
OWNERS Add OWNERS file 2012-10-08 11:58:08 +00:00
PRESUBMIT.py Add PRESUBMIT script to V8 2012-10-08 13:49:57 +00:00
SConstruct Remove support for Live Object List and inspector module. 2013-01-16 15:44:26 +00:00