Review URL: http://codereview.chromium.org/7885

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@562 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

keyed loads that enter the runtime.

Review URL: http://codereview.chromium.org/7879

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@561 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7869

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@560 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

is flaky on Linux and Mac (as well as Windows) and remove
line that refers to non-existing mozilla/... test.
Review URL: http://codereview.chromium.org/7910

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@559 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@558 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@557 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

make the operation of LabelShadows more understandable.
Review URL: http://codereview.chromium.org/7868

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@556 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

optimized duplicate of String::Equals, with a simple call to
String::Equals.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@555 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

  escape commas.
- Fixed issue with block-comparing unaligned strings on arm.
- Added short documentation to one of the Persistent constructors.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@554 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@553 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7865

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@552 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@551 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

C++ functions in shared libraries, building in directories
containing spaces, and using named constants better.
Review URL: http://codereview.chromium.org/7864

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@550 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@549 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Refactored block copying.

Review URL: http://codereview.chromium.org/7863

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@548 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

it's easier to inline the code on demand. Right now, we still
only inline the smi case code for bitwise operations.
Review URL: http://codereview.chromium.org/7669

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@547 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7832

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@546 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

  stream. Enhance the debug code to save and restore the unused holder_reg
  at these points.
- Fix lint issues.

Review URL: http://codereview.chromium.org/8039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@545 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7420

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@544 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=iposva

Review URL: http://codereview.chromium.org/7830

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@543 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR = iposva

Review URL: http://codereview.chromium.org/7828

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7826

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@541 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Here is a description of the background and design of split window in Chrome and V8:
https://docs.google.com/a/google.com/Doc?id=chhjkpg_47fwddxbfr

This change list splits the window object into two parts: 1) an inner window object used as the global object of contexts; 2) an outer window object exposed to JavaScript and accessible by the name 'window'. Firefox did it awhile ago, here are some discussions: https://wiki.mozilla.org/Gecko:SplitWindow. One additional benefit of splitting window in Chrome is that accessing global variables don't need security checks anymore, it can improve applications that use many global variables.

V8 support of split window:
  There are a small number of changes on V8 api to support split window:
Security context is removed from V8, so does related API functions;
A global object can be detached from its context and reused by a new context;
Access checks on an object template can be turned on/off by default;
An object can turn on its access checks later;

  V8 has a new object type, ApiGlobalObject, which is the outer window object type. The existing JSGlobalObject becomes the inner window object type. Security checks are moved from JSGlobalObject to ApiGlobalObject. ApiGlobalObject is the one exposed to JavaScript, it is accessible through Context::Global(). ApiGlobalObject's prototype is set to JSGlobalObject so that property lookups are forwarded to JSGlobalObject. ApiGlobalObject forwards all other property access requests to JSGlobalObject, such as SetProperty, DeleteProperty, etc.

  Security token is moved to a global context, and ApiGlobalObject has a reference to its global context. JSGlobalObject has a reference to its global context as well. When accessing properties on a global object in JavaScript, the domain security check is performed by comparing the security token of the lexical context (Top::global_context()) to the token of global object's context. The check is only needed when the receiver is a window object, such as 'window.document'. Accessing global variables, such as 'var foo = 3; foo' does not need checks because the receiver is the inner window object.

  When an outer window is detached from its global context (when a frame navigates away from a page), it is completely detached from the inner window. A new context is created for the new page, and the outer global object is reused. At this point, the access check on the DOMWindow wrapper of the old context is turned on. The code in old context is still able to access DOMWindow properties, but it has to go through domain security checks.


It is debatable on how to implement the outer window object. Currently each property access function has to check if the receiver is ApiGlobalObject type. This approach might be error-prone that one may forget to check the receiver when adding new functions. It is unlikely a performance issue because accessing global variables are more common than 'window.foo' style coding.

I am still working on the ARM port, and I'd like to hear comments and suggestions on the best way to support it in V8.


Review URL: http://codereview.chromium.org/7366

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@540 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7521

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@539 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

  - support changes to js2c in Visual Studio build
  - handle empty handles in Utf8Value
  - add /nologo to sample link in SCons build

TBR=plesner
Review URL: http://codereview.chromium.org/7816

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@538 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Use the type parameter in the Xcode run script phases when building the
  libraries.cc and libraries-empty.cc files.

Review URL: http://codereview.chromium.org/7814

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@537 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@536 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

completion.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@533 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@532 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7809

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@530 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7808

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@529 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

flat strings with the same representation.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@528 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7664

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@527 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@526 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

  This change reduces the running time of tests without snapshotting.

Review URL: http://codereview.chromium.org/7663

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@525 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7516

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@524 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7622

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@523 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@522 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7476

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@521 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7475

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@520 ce2b1a6d-e550-0410-aec6-3dcde31c8c00