For many moons now I've been seeing this warning when running make x64.release.check:

  /home/wingo/src/v8/src/gdb-jit.cc:632:
     Single-argument constructors should be marked explicit.
     [runtime/explicit] [5]

This patch fixes it.

BUG=

Review URL: https://codereview.chromium.org/13724006
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14153 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* src/scopes.h (ForceContextAllocation, has_forced_context_allocation):
  New interface to force context allocation for an entire function's
  scope.

* src/scopes.cc: Unless a new scope is a function scope, if its outer
  scope has forced context allocation, it should also force context
  allocation.
  (MustAllocateInContext): Return true if the scope as a whole has
  forced context allocation.
  (CollectStackAndContextLocals): Allow temporaries to be
  context-allocated.

* src/parser.cc (ParseFunctionLiteral): Force context allocation for
  generator scopes.

* src/v8globals.h (VariableMode): Update comment on TEMPORARY.

* src/arm/full-codegen-arm.cc (Generate):
* src/ia32/full-codegen-ia32.cc (Generate):
* src/x64/full-codegen-x64.cc (Generate): Assert that generators have no
  stack slots.

* test/mjsunit/harmony/generators-instantiation.js: New test.

BUG=v8:2355
TEST=mjsunit/harmony/generators-instantiation

Review URL: https://codereview.chromium.org/13408005
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14152 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This patch refactors the parser and preparser interface to be more
readable and type-safe.  It has no behavior changes.

Previously, parsers and preparsers were configured via bitfield called
parser_flags in the Parser constructor, and flags in
PreParser::PreParseProgram, ParserApi::Parse, and ParserApi::PreParse.
This was error-prone in practice: six call sites passed incorrectly
typed values to this interface (a boolean FLAG value, a boolean false
and a boolean true value).  None of these errors were caught by the
compiler because it's just an "int".

The parser flags interface was also awkward because it encoded a
language mode, but the language mode was only used to turn on harmony
scoping or not -- it wasn't used to actually set the parser's language
mode.

Fundamentally these errors came in because of the desire for a
procedural parser interface, in ParserApi.  Because we need to be able
to configure the parser in various ways, the flags argument got added;
but no one understood how to use the flags properly.  Also they were
only used by constructors: callers packed bits, and the constructors
unpacked them into booleans on the parser or preparser.

The solution is to allow parser construction, configuration, and
invocation to be separated.  This patch does that.

It passes the existing tests.

BUG=

Review URL: https://codereview.chromium.org/13450007
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14151 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=v8:119

Review URL: https://chromiumcodereview.appspot.com/13177002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14150 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This was still the case for Array.prototype.* builtin functions.

R=rossberg@chromium.org
BUG=v8:2273

Review URL: https://chromiumcodereview.appspot.com/13473009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14149 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13575010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/13693004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14147 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=test-api.cc:GetCallingContextCallback

Review URL: https://chromiumcodereview.appspot.com//13426002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14146 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=mjsunit/mul-exhaustive-part9, mjsunit/bit-not, mjsunit/greedy,
mjsunit/math-floor-of-div-nosudiv, mjsunit/math-floor-of-div,
mjsunit/numops-fuzz-part2

BUG=

Review URL: https://codereview.chromium.org/13455006
Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/13540003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14144 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org

Review URL: https://codereview.chromium.org/12521011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r14136 (d091bc0e)

BUG=

Review URL: https://codereview.chromium.org/13636002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14142 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org
BUG=chromium:217858
TEST=mjsunit/regress/regress-crbug-217858

Review URL: https://codereview.chromium.org/13640004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14141 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* src/api.cc (ScriptData::PreCompile): Fix bogus use of bogus value for
  preparsing flags by removing those arguments, which were always zero.

* src/parser.h
* src/parser.cc (ParserApi::PreParse): Remove extension and flags
  arguments, both of which were either always 0 or incorrectly used.

* test/cctest/test-parsing.cc (RegressChromium62639, Regress928): Fix
  more bogus uses of preparser api.

BUG=

Review URL: https://codereview.chromium.org/13496008
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This turns the __proto__ callback from a foreign callback into a real
JavaScript accessor. It makes the accessor behavior of this property
explicit.

R=rossberg@chromium.org
BUG=v8:1949,v8:2606
TEST=mjsunit/regress/regress-2606

Review URL: https://codereview.chromium.org/13533004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14139 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/13620003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14136 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org

Review URL: https://codereview.chromium.org/13633002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is just an experiment to track down high crash rates on some
systems where third-party software corrupts memory regions.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/13630002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14134 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:2607

Review URL: https://codereview.chromium.org/13470002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14133 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This allows to distinguish between stubs compiled for the current object from
stubs compiled for objects that have the current object as a prototype.

BUG=v8:2593
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/13552003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r14124 (f116e8b9)

BUG=

Review URL: https://codereview.chromium.org/13557002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14131 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r14123 (ded70e2a)

BUG=

Review URL: https://codereview.chromium.org/13551004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14130 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r14122 (43525afd)

BUG=

Review URL: https://codereview.chromium.org/13556003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14129 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/13552002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/12491023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14127 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org
BUG=v8:2355
TEST=webkit:fast/js/reserved-words-as-property.html

Review URL: https://codereview.chromium.org/13546004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14126 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This patch adds comments explaining the interface in runtime.cc and simplifies
all callers given these assumptions (e.g., no need to loop over intervals, or
calculate where the interval starts).

Took care of some unrelated issues in the edited code:
- Fixes one use of [] to InternalArray
- Removed a bunch of comments referring to ES3 which no longer hold in ES5

Review URL: https://codereview.chromium.org/13071006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14125 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=vegorov@chromium.org
BUG=chromium:201590

Review URL: https://codereview.chromium.org/13527007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14124 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13529003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14123 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13461020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/13527005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14121 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r14111 (29157ad7)

BUG=

Review URL: https://codereview.chromium.org/13461013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/13008018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14119 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13465010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14118 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13464010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14117 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This patchset begins by adding support for "yield", which is unlike other tokens
in JS. In a generator, whether strict or classic, it is a syntactic keyword.
In classic mode it is an identifier. In strict mode it is reserved.

This patch adds YIELD as a token to the scanner, and adapts the preparser and
parser appropriately. It also parses "function*", indicating that a function is
actually a generator, for both eagerly and lazily parsed functions.

Currently "yield" just compiles as "return".

BUG=v8:2355
TEST=mjsunit/harmony/generators-parsing

Review URL: https://codereview.chromium.org/12646003
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/13463004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14115 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/13470008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14114 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=none

Review URL: https://chromiumcodereview.appspot.com/13469002
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This will make it easier to see if the current CPU feature detection
starts breaking because of process sandboxing.

BUG=v8:2597

Review URL: https://chromiumcodereview.appspot.com/13465003
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14112 ce2b1a6d-e550-0410-aec6-3dcde31c8c00