Arrow functions have been enabled by default since the 4.5 branch.
Review URL: https://codereview.chromium.org/1373633002
Cr-Commit-Position: refs/heads/master@{#31031}
Weak classes can inherit from strong ones again, a strong base class makes
instances strong.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1347243004
Cr-Commit-Position: refs/heads/master@{#30867}
The semantics of the %_CallFunction intrinsic seem to be very unclear,
which resulted in a lot of bugs. Especially the combination with
%IsSloppyModeFunction is always a bug, because the receiver would be
wrapped in the wrong context. So the %IsSloppyModeFunction helper is
gone now, and many of the buggy uses of %_CallFunction are also
eliminated.
If you ever need to call something with a different receiver, then
%_Call is your friend now. It does what you want and implements the
call sequence fully (and correct).
BUG=v8:4413
LOG=n
Review URL: https://codereview.chromium.org/1325573004
Cr-Commit-Position: refs/heads/master@{#30634}
Since the constructor is also the class object itself, allowing it to
retroactively become a strong object would have unintuitive consequences
wrt the strength of the other functions of the class, and whether instances
would be considered instances of a strong class.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1314203002
Cr-Commit-Position: refs/heads/master@{#30519}
TC39 agreed to disallow "use strict" directives in function body when
non-simple parameter lists are used.
This is a continuation of caitp's CL https://codereview.chromium.org/1281163002/
with some refactorings removed for now.
Still TODO: there is a lot of duplication between the is_simple field of
FormalParametersBase and the NonSimpleParameter property ExpressionClassifier
keeps track of. It should be possible to remove the former with a minor
refactoring of arrow function parsing. This will be attempted in a follow-up CL.
BUG=
LOG=N
Review URL: https://codereview.chromium.org/1300103005
Cr-Commit-Position: refs/heads/master@{#30388}
Keeping this CL separate in case there are more GC-stress problems.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1217543006
Cr-Commit-Position: refs/heads/master@{#29449}
The enumerable expression in a for-in/of loop is supposed to have a TDZ for any
lexically bound names in that loop (there can be more than one with destructuring).
This patch accomplishes this with an almost-correct desugaring. The only thing missing
is proper debugger support (the let declarations added by the desugaring, while invisible
to code due to shadowing, are visible to the debugger).
BUG=v8:4210
LOG=n
Review URL: https://codereview.chromium.org/1218543003
Cr-Commit-Position: refs/heads/master@{#29396}
Revert "Revert relanded strong property access CL"
Regression issues should be solved. Initial patchset is the original, subsequent patchsets are the fixing modifications.
This reverts commit 4ac7be5656.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1199983002
Cr-Commit-Position: refs/heads/master@{#29384}
Also fixes a crankshaft bug with strong implicit conversions.
It turns out that the implicit conversion of oddball values
is smushed into so many places in crankshaft that it would
have been pretty invasive surgery to make everything fall
out naturally.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1216463003
Cr-Commit-Position: refs/heads/master@{#29381}
Reason:
Regressions in various benchmarks.
Revert "Revert of Revert of [strong] Implement strong mode restrictions on property access (patchset #1 id:1 of https://codereview.chromium.org/1189153002/)"
This reverts commit 41405c0470.
Revert "X87: Revert of Revert of [strong] Implement strong mode restrictions on property access."
This reverts commit 48de5f4d6b.
Revert "Fix overlapping KeyedLoadIC bitfield."
This reverts commit 4e6c956abf.
Revert "MIPS64: Fix 'Revert of Revert of [strong] Implement strong mode restrictions on property access'."
This reverts commit 74f97b0d2a.
BUG=
Review URL: https://codereview.chromium.org/1199493002
Cr-Commit-Position: refs/heads/master@{#29166}
Implements the strong mode proposal's restrictions on property access.
To be fully explored in a followup: proxies, interceptors, access checks, load from super
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1168093002
Cr-Commit-Position: refs/heads/master@{#29109}
Implements the strong mode proposal's restrictions on the behaviour of the
delete operator for strong objects.
Setting the strong bit is still wip, so this change will only affect those
objects that have the bit correctly set. The tests reflect this, and will be
expanded as more objects can be marked as strong.
Attempt 2, last version did not work with API.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1156573002
Cr-Commit-Position: refs/heads/master@{#28724}
Implements the strong mode proposal's restrictions on changing a strong object's
writable, non-configurable property to non-writable.
Setting the strong bit is still wip, so this change will only affect those
objects that have the bit correctly set. The tests reflect this, and will be
expanded as more objects can be marked as strong.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1142393003
Cr-Commit-Position: refs/heads/master@{#28698}
Implements the strong mode proposal's restrictions on the ability of user code
to modify the prototype of strong objects.
Setting the strong bit is still wip, so this change will only affect those
objects that have the bit correctly set. The tests reflect this, and will be
expanded as more objects can be marked as strong.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1143623002
Cr-Commit-Position: refs/heads/master@{#28664}
Strong Object/Array literals are currently being created with incorrect
internal prototypes. This CL fixes this and extends the test suite to check.
BUG=
LOG=N
Review URL: https://codereview.chromium.org/1158933002
Cr-Commit-Position: refs/heads/master@{#28655}
Also check whether the arguments count is smaller than the number of
required parameters which is the same as the SharedFunctionInfo length.
BUG=v8:4102
LOG=N
R=rossberg@chromium.org
Review URL: https://codereview.chromium.org/1133933003
Cr-Commit-Position: refs/heads/master@{#28491}
The functions of strong classes are born non extensible. But, when
the class is created we need to add an own private symbol representing
the [[HomeObject]] slot in the spec.
Like for the hidden_string property, we allow adding private own
symbols to non extensible objects.
BUG=v8:4077
LOG=N
R=rossberg@chromium.org
Review URL: https://codereview.chromium.org/1138603003
Cr-Commit-Position: refs/heads/master@{#28447}
Implements the strong mode proposal's restrictions on implicit conversions
for the binary >, >=, <, and <= operators.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1130283002
Cr-Commit-Position: refs/heads/master@{#28370}
The Hydrogen representation for binops was never changed to care about the
language mode. We thought this was ok, but it turns out we need to keep track
of it to make sure inlining doesn't mess with the "strongness" of binops.
Also added more rigorous inlining testing.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1123043002
Cr-Commit-Position: refs/heads/master@{#28253}
Implements the strong mode proposal's restrictions on implicit conversions
for the binary + operator. Test suite is also cleaned up/refactored to allow
easier testing of the comparison operators in the future.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1109223004
Cr-Commit-Position: refs/heads/master@{#28159}
Implements the strong mode proposal's restrictions on
implicit conversions for binary arithmetic operations, not
including the + special case. Adds some infrastructure
for future implementation of the restrictions for other
operators.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1092353002
Cr-Commit-Position: refs/heads/master@{#28045}
Add the restriction that both classes must be declared inside the same
consectutive class declaration batch.
Dependency analysis not implemented yet.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1060913005
Cr-Commit-Position: refs/heads/master@{#28032}
Reason for revert:
Was an infrastructure problem.
Original issue's description:
> Revert of [strong] checking of this & super in constructors (patchset #7 id:110001 of https://codereview.chromium.org/1024063002/)
>
> Reason for revert:
> [Sheriff] Breaks mac gc stress:
> http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1024
>
> Original issue's description:
> > [strong] checking of this & super in constructors
> >
> > R=dslomov@chromium.org, marja@chromium.org
> > BUG=v8:3956
> > LOG=N
> >
> > Enforces for constructors that
> > - the only use of 'super' is the super constructor call
> > - the only use of 'this' is a property assignment
> > - both of these must happen at the top-level of the body
> > - 'this' may only be assigned after the 'super' call
> > - 'return' may only be used after the last assignment to 'this'
> >
> > Not yet working for arrow functions (there might be deeper bugs with those).
> >
> > Committed: https://crrev.com/580d66bcda66220d2f3062ac58daf925436df74c
> > Cr-Commit-Position: refs/heads/master@{#27977}
>
> TBR=dslomov@chromium.org,marja@chromium.org,conradw@chromium.org,rossberg@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:3956
TBR=dslomov@chromium.org,marja@chromium.org,conradw@chromium.org,rossberg@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3956
Review URL: https://codereview.chromium.org/1073103004
Cr-Commit-Position: refs/heads/master@{#28001}
Reason for revert:
[Sheriff] Breaks mac gc stress:
http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1024
Original issue's description:
> [strong] checking of this & super in constructors
>
> R=dslomov@chromium.org, marja@chromium.org
> BUG=v8:3956
> LOG=N
>
> Enforces for constructors that
> - the only use of 'super' is the super constructor call
> - the only use of 'this' is a property assignment
> - both of these must happen at the top-level of the body
> - 'this' may only be assigned after the 'super' call
> - 'return' may only be used after the last assignment to 'this'
>
> Not yet working for arrow functions (there might be deeper bugs with those).
>
> Committed: https://crrev.com/580d66bcda66220d2f3062ac58daf925436df74c
> Cr-Commit-Position: refs/heads/master@{#27977}
TBR=dslomov@chromium.org,marja@chromium.org,conradw@chromium.org,rossberg@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3956
Review URL: https://codereview.chromium.org/1105453002
Cr-Commit-Position: refs/heads/master@{#27991}
R=dslomov@chromium.org, marja@chromium.org
BUG=v8:3956
LOG=N
Enforces for constructors that
- the only use of 'super' is the super constructor call
- the only use of 'this' is a property assignment
- both of these must happen at the top-level of the body
- 'this' may only be assigned after the 'super' call
- 'return' may only be used after the last assignment to 'this'
Not yet working for arrow functions (there might be deeper bugs with those).
Review URL: https://codereview.chromium.org/1024063002
Cr-Commit-Position: refs/heads/master@{#27977}
The previous restrictions were overshooting (didn't allow a class to refer to a
later class under any circumstances); after this CL we're undershooting (allow
referring to any class from inside a method).
Implementing the correct checks (allow referring only if the class declarations
are in a consecutive block and if there's no dependency cycle) will be
implemented as a follow up.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1087543004
Cr-Commit-Position: refs/heads/master@{#27888}
