Reviewers: Toon Verwaest,
Description:
Make Object.freeze fast
This patch both speeds up the freeze operation itself, but also
allows properties to remain in fast mode. Objects with non-empty
elements backing stores still end up with slow elements.
Relanding r14758 and r14759 with fix for Test262: only mark properties
and elements READ_ONLY if they are not JS setter/getters. Tightened up
tests to assert frozen-ness, and added targeted tests for the new code
(covering accessors).
BUG=v8:1858, 115960
[email protected]
Please review this at https://codereview.chromium.org/15691007/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files:
M include/v8.h
M src/heap.h
M src/heap.cc
M src/objects-inl.h
M src/objects.h
M src/objects.cc
M src/property-details.h
M src/runtime.h
M src/runtime.cc
M src/v8natives.js
M test/mjsunit/object-freeze.js
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