This fixes a corner-case where arrow functions that require a context
allocate none, because there are no additional slots allocated. Note
that this didn't happen with true function scopes because they always
had at least the receiver slot.
The outcome was a context chain that no longer was in sync with the
scope chain, hence context slot loads were bogus. This is observable
using the DYNAMIC_LOCAL optimization in all compilers.
R=rossberg@chromium.org,wingo@igalia.com
TEST=mjsunit/harmony/regress/regress-4160
BUG=v8:4160
LOG=N
Review URL: https://codereview.chromium.org/1146063006
Cr-Commit-Position: refs/heads/master@{#28788}
This patch implements the last two methods on TypedArrays. These
were previously committed and led to a test failure.
BUG=v8:3578
LOG=Y
R=adamk
Review URL: https://codereview.chromium.org/1154423014
Cr-Commit-Position: refs/heads/master@{#28773}
This splits the SuperReference AST node into SuperPropertyReference and
SuperCallReference. The super call reference node consists of three
unresolved vars to this, new.target and this_function. These gets
declared when the right function is entered and if it is in use. The
variables gets assigned in FullCodeGenerator::Generate.
This is a revert of the revert 88b1c9170a
BUG=v8:3768
LOG=N
R=wingo@igalia.com, adamk@chromium.org
Review URL: https://codereview.chromium.org/1168513004
Cr-Commit-Position: refs/heads/master@{#28769}
Implementations factored out from Array. Tests are derived from
normal array toString tests.
BUG=v8:3578
LOG=Y
R=adamk
Review URL: https://codereview.chromium.org/1166623004
Cr-Commit-Position: refs/heads/master@{#28766}
Stage 1 implementation:
- Parameters can't be referenced before initialized (from left-to-right)
- SingleNameBindings only, no support for BindingPatterns
Known issues:
- Incorrect scoping (parameter expressions may reference variables declared in function body)
- Function arity is untouched
- Hole-checking needs work
- Rest parameters are broken when mixed with optional arguments
BUG=v8:2160
LOG=N
R=arv@chromium.org, rossberg@chromium.org
Review URL: https://codereview.chromium.org/1127063003
Cr-Commit-Position: refs/heads/master@{#28739}
This splits the SuperReference AST node into SuperPropertyReference and
SuperCallReference. The super call reference node consists of three
unresolved vars to this, new.target and this_function. These gets
declared when the right function is entered and if it is in use. The
variables gets assigned in FullCodeGenerator::Generate.
BUG=v8:3768
LOG=N
R=wingo@igalia.com, adamk@chromium.org
Review URL: https://codereview.chromium.org/1146863007
Cr-Commit-Position: refs/heads/master@{#28731}
When we enter a method that needs access to the [[HomeObject]]
we allocate a local variable `.home_object` and assign it the
value from the [[HomeObject]] private symbol. Something along
the lines of:
method() {
var .home_object = %ThisFunction()[home_object_symbol];
...
}
BUG=v8:3867, v8:4031
LOG=N
Review URL: https://codereview.chromium.org/1135243004
Cr-Commit-Position: refs/heads/master@{#28644}
The April 14 2015 final draft of the ES6 specification states that the
`prototype` property of generator function instances should be writable.
BUG=v8:4140, v8:4140
LOG=N
R=arv@chromium.org
Review URL: https://codereview.chromium.org/1153633003
Cr-Commit-Position: refs/heads/master@{#28641}
This fixes a corner-case where deoptimization while evaluating the
value to a __proto__ property after computed property names appeared
in an object literal, lead to environments not being in sync with
unoptimized code.
R=arv@chromium.org
TEST=mjsunit/harmony/computed-property-names-deopt
Review URL: https://codereview.chromium.org/1158443004
Cr-Commit-Position: refs/heads/master@{#28613}
This adds a new external type (v8::SharedArrayBuffer) that uses a JSArrayBuffer
under the hood. It can be distinguished from an ArrayBuffer by the newly-added
is_shared() bit.
Currently there is no difference in functionality between a SharedArrayBuffer
and an ArrayBuffer. However, a future CL will add the Atomics API, which is
only available on an SharedArrayBuffer. All non-atomic accesses are identical
to ArrayBuffer accesses.
LOG=N
BUG=
Review URL: https://codereview.chromium.org/1136553006
Cr-Commit-Position: refs/heads/master@{#28594}
Reason for revert:
breaks build
Original issue's description:
> Implement SharedArrayBuffer.
>
> This adds a new external type (v8::SharedArrayBuffer) that uses a JSArrayBuffer under the hood. It can be distinguished from an ArrayBuffer by the newly-added is_shared() bit.
>
> Currently there is no difference in functionality between a SharedArrayBuffer and an ArrayBuffer. However, a future CL will add the Atomics API, which is only available on an SharedArrayBuffer. All non-atomic accesses are identical to ArrayBuffer accesses.
>
> BUG=
>
> Committed: https://crrev.com/57170bff7baf341c666252a7f6a49e9c08d51263
> Cr-Commit-Position: refs/heads/master@{#28588}
TBR=jarin@chromium.org,jochen@chromium.org,binji@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/1149203003
Cr-Commit-Position: refs/heads/master@{#28589}
This adds a new external type (v8::SharedArrayBuffer) that uses a JSArrayBuffer under the hood. It can be distinguished from an ArrayBuffer by the newly-added is_shared() bit.
Currently there is no difference in functionality between a SharedArrayBuffer and an ArrayBuffer. However, a future CL will add the Atomics API, which is only available on an SharedArrayBuffer. All non-atomic accesses are identical to ArrayBuffer accesses.
BUG=
Review URL: https://codereview.chromium.org/1136553006
Cr-Commit-Position: refs/heads/master@{#28588}
Also support patterns in ``for (var p in/of ...)``
This CL extends the rewriting we used to do for ``for (let p in/of...)`` to
``for (var p in/of ...)``. For all for..in/of loop declaring variable,
we rewrite
for (var/let/const pattern in/of e) b
into
for (x' in/of e) { var/let/const pattern = e; b }
This adds a small complication for debugger: for a statement
for (var v in/of e) ...
we used to have
var v;
for (v in/of e) ...
and there was a separate breakpoint on ``var v`` line.
This breakpoint is actually useless since it is immediately followed by
a breakpoint on evaluation of ``e``, so this CL removes that breakpoint
location.
Similiraly, for let, it used to be that
for (let v in/of e) ...
became
for (x' in/of e) { let v; v = x'; ... }
``let v``generetaed a useless breakpoint (with the location at the
loop's head. This CL removes that breakpoint as well.
R=arv@chromium.org,rossberg@chromium.org
BUG=v8:811
LOG=N
Review URL: https://codereview.chromium.org/1149043005
Cr-Commit-Position: refs/heads/master@{#28565}
This allows you to put iterables into your array literals
and the will get spread into the array.
let x = [0, ...range(1, 3)]; // [0, 1, 2]
This is done by treating the array literal up to the first
spread element as usual, including using a boiler plate
array, and then appending the remaining expressions and rest
expressions.
BUG=v8:3018
LOG=N
Review URL: https://codereview.chromium.org/1125183008
Cr-Commit-Position: refs/heads/master@{#28534}
Previously this patch was attempted with reduce and reduceRight included;
however, some of those tests crashed in the trybots. This version has
just map, fiter and some, together with their tests.
R=arv@chromium.org
BUG=v8:3578
LOG=Y
Review URL: https://codereview.chromium.org/1145013002
Cr-Commit-Position: refs/heads/master@{#28529}
This patch adds the two TypedArray methods indexOf and lastIndexOf,
which are similar to the methods on Arrays. Tests are ported from
arrays as well.
BUG=v8:3578
LOG=Y
R=arv@chromium.org
Review URL: https://codereview.chromium.org/1141763004
Patch from Daniel Ehrenberg <dehrenberg@chromium.org>.
Cr-Commit-Position: refs/heads/master@{#28495}
The sort method of TypedArrays sorts in numerical order by default.
This patch implements sorting based on Arrays and adds a test.
The length of %TypedArray%.prototype.sort, like Array.prototype.sort,
seems to be unspecified in ES6, so this patch lets it have the value
1, to match our interpretation for Array.prototype.sort (though 0
would also be a sensible length).
R=arv@chromium.org
BUG=v8:3578
LOG=Y
Review URL: https://codereview.chromium.org/1148513002
Patch from Daniel Ehrenberg <dehrenberg@chromium.org>.
Cr-Commit-Position: refs/heads/master@{#28494}
This patch adds the reverse method to TypedArrays, together with a
test. The test also runs for normal Arrays, since I didn't see a
test for reversing dense arrays.
BUG=v8:3578
LOG=Y
R=arv@chromium.org
Review URL: https://codereview.chromium.org/1132723008
Patch from Daniel Ehrenberg <dehrenberg@chromium.org>.
Cr-Commit-Position: refs/heads/master@{#28493}
This patch adds implementations for additional TypedArray methods
from the ES6 spec, together with tests adapted from array code.
R=arv@chromium.org
BUG=v8:3578
LOG=Y
Review URL: https://codereview.chromium.org/1139663005
Cr-Commit-Position: refs/heads/master@{#28488}
This function creates a new way to make TypedArrays based on existing
iterable or Array-like objects, analogous to Array.from. The patch
implements the function and adds tests.
R=arv@chromium.org
BUG=v8:3578
LOG=Y
Review URL: https://codereview.chromium.org/1132163011
Cr-Commit-Position: refs/heads/master@{#28456}
ES6 specifies that methods on TypedArrays reference an internal length
slot, rather than their length property. This patch tests that for the
TypedArray methods that exist currently.
R=arv@chromium.org
BUG=v8:3578
LOG=Y
Review URL: https://codereview.chromium.org/1130413010
Cr-Commit-Position: refs/heads/master@{#28409}
... and the following two
"PPC: Resolve references to "this" the same way as normal variables"
"Remove Scope::scope_uses_this_ flag"
R=hablich@chromium.org
BUG=chromium:487289
LOG=N
Review URL: https://codereview.chromium.org/1134003003
Cr-Commit-Position: refs/heads/master@{#28395}
This patch adds three methods to TypedArrays which are already
implemented for arrays. The implementations are made by calling
out to the underlying code used by Arrays.
R=adamk@chromium.org
BUG=v8:3578
LOG=Y
Review URL: https://codereview.chromium.org/1136663005
Cr-Commit-Position: refs/heads/master@{#28382}
The idea is to make this the model for future TypedArray methods.
A possible downside could be lower array method performance
if everything gets polymorhpic (but if enough inlining happens, it
should still be fast), but on the upside, this change means that
the TypedArray methods won't create as much code size bloat.
BUG=v8:3578
LOG=Y
R=adamk@chromium.orgCC=arv@chromium.org, caitpotter88@gmail.com
Review URL: https://codereview.chromium.org/1133503003
Cr-Commit-Position: refs/heads/master@{#28351}
This patch:
- Refactors Parser::ParseVariableDeclarations
- Introduces Parser::PatternMatcher class
- Implements matching a single variable pattern
- Implements rudimentary matching against object literal pattern
as a proof of concept
R=arv@chromium.org,rossberg@chromium.org
BUG=v8:811
LOG=N
Review URL: https://codereview.chromium.org/1130623004
Cr-Commit-Position: refs/heads/master@{#28345}
Make the parser handle references to "this" as unresolved variables, so the
same logic as for the rest of function parameters is used for the receiver.
Minor additions to the code generation handle copying the receiver to the
context, along with the rest of the function parameters.
Based on work by Adrian Perez de Castro <aperez@igalia.com>.
This is a reapplication of https://codereview.chromium.org/1130733003.
R=rossberg@chromium.org
BUG=v8:2700
LOG=N
Review URL: https://codereview.chromium.org/1136073002
Cr-Commit-Position: refs/heads/master@{#28340}
Reason for revert:
[Sheriff] Breaks jetstream benchmark with errors like this:
>>> Running suite: JetStream/bigfib.cpp
>>> Stdout (#1):
undefined:93: ReferenceError: this is not defined
this['Module'] = Module;
^
ReferenceError: this is not defined
at eval (eval at __run (runner.js:13:3), <anonymous>:93:3)
at eval (native)
at __run (runner.js:13:3)
at Object.runSimpleBenchmark (runner.js:44:31)
at runner.js:97:13
Original issue's description:
> Resolve references to "this" the same way as normal variables
>
> Make the parser handle references to "this" as unresolved variables, so the
> same logic as for the rest of function parameters is used for the receiver.
> Minor additions to the code generation handle copying the receiver to the
> context, along with the rest of the function parameters.
>
> Based on work by Adrian Perez de Castro <aperez@igalia.com>.
>
> BUG=v8:2700
> LOG=N
>
> Committed: https://crrev.com/06a792b7cc2db33ffce7244c044a9c05afbb6116
> Cr-Commit-Position: refs/heads/master@{#28263}
TBR=rossberg@chromium.org,arv@chromium.org,wingo@igalia.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:2700
Review URL: https://codereview.chromium.org/1129723003
Cr-Commit-Position: refs/heads/master@{#28283}
Make the parser handle references to "this" as unresolved variables, so the
same logic as for the rest of function parameters is used for the receiver.
Minor additions to the code generation handle copying the receiver to the
context, along with the rest of the function parameters.
Based on work by Adrian Perez de Castro <aperez@igalia.com>.
BUG=v8:2700
LOG=N
Review URL: https://codereview.chromium.org/1130733003
Cr-Commit-Position: refs/heads/master@{#28263}
Reason for revert:
nosnap failures
Original issue's description:
> Resolve references to "this" the same way as normal variables
>
> Make the parser handle references to "this" as unresolved variables, so the
> same logic as for the rest of function parameters is used for the receiver.
> Minor additions to the code generation handle copying the receiver to the
> context, along with the rest of the function parameters.
>
> Based on work by Adrian Perez de Castro <aperez@igalia.com>.
>
> BUG=
> LOG=N
>
> Committed: https://crrev.com/18619d355192e2699203d12d9ebb9caea107b693
> Cr-Commit-Position: refs/heads/master@{#28236}
TBR=rossberg@chromium.org,mstarzinger@chromium.org,dslomov@chromium.org,adamk@chromium.org,arv@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/1113133006
Cr-Commit-Position: refs/heads/master@{#28238}
