This is per resolution in the WebGL working group to make these types
match the WebIDL IndexSetter and IndexGetter semantics, which are
still being defined but will very likely not throw.

Review URL: http://codereview.chromium.org/328007

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specification under development. The optimizations are patterned after
those previously done for CanvasPixelArray. This CL adds all of the
necessary framework but continues to use the generic KeyedLoadIC and
KeyedStoreIC code, to create a baseline for benchmarking purposes. The
next CL will add the optimized ICs to ic-ia32.cc and ic-x64.cc.

These new CanvasArray types have different semantics than
CanvasPixelArray; out-of-range values are clamped via C cast
semantics, which is cheaper than the clamping behavior specified by
CanvasPixelArray. Out-of-range indices raise exceptions instead of
being silently ignored.

As part of this work, pulled FloatingPointHelper::AllocateHeapNumber
up to MacroAssembler on ia32 and x64 platforms. Slightly refactored
KeyedLoadIC and KeyedStoreIC. Fixed encoding for fistp_d on x64 and
added a few more instructions that are needed for the new ICs. The
test cases in test-api.cc have been verified by hand to exercise all
of the generated code paths in the forthcoming specialized ICs.

Review URL: http://codereview.chromium.org/293023

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contains_array_literal_ implies materialized_literal_count_ > 0, and
we appear not to need to know about array literals specifically.

Review URL: http://codereview.chromium.org/272043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3055 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/246077


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Instead of crashing or reporting a fatal v8 error if an error occurs
during context initialization we now survive and return an empty
handle.

Review URL: http://codereview.chromium.org/194070


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Review URL: http://codereview.chromium.org/165403

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  indexed property accesses.
- The IC stubs have not been updated to handle these directly, but
  at least we do not have to leave the VM to access bytes.

Review URL: http://codereview.chromium.org/159263

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The abstractions have led to bugs because it looks like descriptor
streams are GC safe but they are not.

I have moved the descriptor stream helper functions to descriptor
arrays and I find most of the code just as readable now as it was
before.
Review URL: http://codereview.chromium.org/149458

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DescriptorWriters hold a raw pointer to the descriptor array and they
are therefore not GC safe.
Review URL: http://codereview.chromium.org/149304

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Review URL: http://codereview.chromium.org/151193

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TBR=bak@chromium.org

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Review URL: http://codereview.chromium.org/150168

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cells in old space for properties) and avoid allocating tons
of unused properties in new space when creating new contexts.
Review URL: http://codereview.chromium.org/151146

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2319 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Changed the global object representation.The global object is now always in dictionary (slow) mode with each of its properties stored in a cell object. A cell object has one field containing the actual value for the property. Inline caches for access to global properties which uses direct to the cell are now created for load, store and call to properties of the global object. When properties of the global object are deleted the cell for that property is kept with an indcation of that the property is deleted.Added counters to track the use of the global property inline caches.Added additional information on IC's in the disassembler.
Review URL: http://codereview.chromium.org/151019

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- Simplify generated code for Runtime_** functions.

Review URL: http://codereview.chromium.org/149068

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Scripts now have a compilation type which can be host, eval or JSON. Host scripts are compiled through the API, eval scripts are compiled through call to evan and JSON scripts are compiled as a result of calling JSON.parse.

For scripts scripts compiled through eval the JavaScript function in top of the stack and the pc offset into the code is stored in the script object. This makes it possible to calculate the source position of the eval call later when requested. This information can be obtained through the script mirror object and is part of the script mirror JSON serialization for the debugger protocol.

Moved the enumeration ScripType into class Script and remamed to Type. The new compilation type enumeration is also inside the class Script.

This information is now shown when using the scripts command in he developer shell debugger.
Review URL: http://codereview.chromium.org/119108

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This issue was raised by Brett Wilson while reviewing my changelist for readability. Craig Silverstein (one of C++ SG maintainers) confirmed that we should declare one namespace per line. Our way of namespaces closing seems not violating style guides (there is no clear agreement on it), so I left it intact.

Review URL: http://codereview.chromium.org/115756


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Yields a 2% speedup when running compiler-benchmark.

Review URL: http://codereview.chromium.org/113519

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to check that all scripts have a proxy in the wrapper field.
Review URL: http://codereview.chromium.org/115081

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Added a simple initial version of a context mirror object which just holds the user data from the context, and does not preserve handle identity.

A script object now holds a reference to the custom data from the context it was compiled in. This data is included in the debugger protocol for scripts.

Changed the serialization for the scripts command to use the mirror objects instaed of custom serialization. This included passing options from the debugger request to the serializer for including the full source of scripts in the response.
Review URL: http://codereview.chromium.org/111001

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  the properties as well.  This fixes some failing tests.
- Moved json parsing into native code.


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Review URL: http://codereview.chromium.org/90003

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ENABLE_DEBUGGER_SUPPORT is enabled by default unless it is on Android platform.
On Android platform, it can also enabled by passing -DENABLE_DEBUGGER_SUPPORT flag to the compiler.

This should not affect any existing build (I hope, cross my fingers) except the build in real Android environment (in other word, it only affects me now).

There are lot of room for code refactoring in stead of using #ifdef all over the place. I will leave this to v8 folks.

Review URL: http://codereview.chromium.org/77035

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to be error-prone and of little benefit in terms of performance.
Review URL: http://codereview.chromium.org/45010

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  1418, and 1419 from bleeding_edge, reverted in 1429.
* Fix of $1 accessor on sliced strings.
* Fix of lastParen method when last parenthesis did not match.
Review URL: http://codereview.chromium.org/43075

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TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/43012

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Moved the storage of the last script id into the heap to make it part of the serialized data when starting V8 on a snapshot.

Currently the script ids wrap when positive smi value is exhausted.
Review URL: http://codereview.chromium.org/43008

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Whenever a script object is created it is assigned a unique id. Currently this id is assigned from an 32 bit integer counter.

Changed the script break points to be able to handle both break points based on script names and script ids. When break points are set through a script id the position is relative to the script itself. This is different from the script break points set through script names where the line/coulmn offset is taken into account.

This has the side effect that function break points are not converted into script break points for named scripts.

Show the script id in the D8 shell debugger when listing all scripts using the 'scripts' command.
Review URL: http://codereview.chromium.org/40317

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by map collection, are now handled correctly everywhere.  The 
map-collect flag is now true by default.
Review URL: http://codereview.chromium.org/40218

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1418, and 1419 from bleeding_edge until we have a fix
for the crashers we see on the distributed test infra-
structure.

We know that revision 1383 is causing issues, but I 
had to revert some of the other recent RegExp changes
in order to get this part out.
Review URL: http://codereview.chromium.org/39186

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- Pass the knowledge whether the old GC is compacting to the GC prologue and epilogue. This allows us to skip frame cooking and uncooking when doing a mark-sweep GC.
- Add the ability for the code to refer to its code object by adding a handle to the code object in the MacroAssembler.

Review URL: http://codereview.chromium.org/27133

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This function (which creates a tenured JS array) was not use by any code.
Review URL: http://codereview.chromium.org/28070

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Thus, instead of the following profiler records:
   1.5%    1.5%   LazyCompile: <anonymous>
we'll now have these:
   1.5%    1.5%   LazyCompile: <anonymous> richards.js:309

Basically, I translated two functions from messages.js into C++.
In the next CL I will update messages.js to use added native functions.

Review URL: http://codereview.chromium.org/19537

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through the API. This allows us to verify state on entry through the API.
In this change verification in the API entry is checking that the current
thread holds the V8 lock when a HandleScope is instantiated if a v8::Locker
has ever been used by the V8 instance.
Review URL: http://codereview.chromium.org/18707

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Review URL: http://codereview.chromium.org/18094


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This can lead to large objects which wastes a lot of space if we normalize properties.  We therfore clear the inobject properties when normalizing properties.  This is done by adjusting the instance size in the new map and overwriting the inobject properties with a filler.
Review URL: http://codereview.chromium.org/17308

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Fixing a subtle bug in receiver resolution when a thrown and caught function is called from a catch-block.
Second attempt - now with better memory efficiency.
Review URL: http://codereview.chromium.org/14834

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Review URL: http://codereview.chromium.org/12427

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Simplified some uses of StringShape.
Removed unused function SlicedStringFlatten.
Review URL: http://codereview.chromium.org/9408

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