When accessor getter callback is called the v8::PropertyCallbackInfo::ShouldThrowOnError() is always false, since according to ES6 there's no difference between strict and non-strict property loads. For the setter case the v8::PropertyCallbackInfo::ShouldThrowOnError() returns true if the property is set in strict context.
Interceptors follow same idea: for getter, enumerator and query callbacks the v8::PropertyCallbackInfo::ShouldThrowOnError() is always false, and for setter and deleter callback the v8::PropertyCallbackInfo::ShouldThrowOnError() returns true in strict context.
This CL also cleans up the CallApiGetterStub and removes bogus asserts from [arm] Push(reg1, reg2, ..., regN) that prevented from pushing a set of registers containing duplicates.
BUG=v8:4267
LOG=Y
Review URL: https://codereview.chromium.org/1587073003
Cr-Commit-Position: refs/heads/master@{#33438}
These features are not used by devtools and consequently not
exposed through the devtools protocol. They make the debugger
unnecessarily complex. If we decide that we need this, we should
implement this on a higher layer.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1607193003
Cr-Commit-Position: refs/heads/master@{#33436}
It was not properly rewriting three cases:
- [...[42]][0]
- [...[42]].length
- [...[42]] `foo` (which is a type error)
R=rossberg@chromium.org
BUG=v8:4696
LOG=N
Review URL: https://codereview.chromium.org/1617713002
Cr-Commit-Position: refs/heads/master@{#33433}
We divide character ranges into
- BMP, matched normally.
- non-BMP, matched as alternatives of surrogate pair ranges.
- lone surrogates, matched with lookaround assertion that its indeed lone.
R=erik.corry@gmail.com
BUG=v8:2952
LOG=N
Review URL: https://codereview.chromium.org/1578253005
Cr-Commit-Position: refs/heads/master@{#33432}
A break location is considered muted if it has break points, but their
conditions all evaluate to false. Aside from not triggering break
events, debugger statements and exceptions are also ignored.
R=verwaest@chromium.org
BUG=chromium:429167
LOG=Y
Review URL: https://codereview.chromium.org/1610073002
Cr-Commit-Position: refs/heads/master@{#33429}
Although the `for..in` statement allows Expressions to define the
iterator, only an AssignmentExpression may occupy this position in the
`for..of` statement.
BUG=v8:4692
LOG=N
R=adamk@chromium.org
Review URL: https://codereview.chromium.org/1602823003
Cr-Commit-Position: refs/heads/master@{#33420}
This implements a first prototype of stack unwinding for interpreted
frames. The unwinding machinery performs a range-based lookup in the
given handler table and potentially continues dispatching at the handler
offset. Note that this does not yet correctly restore the context to the
correct value when the handler is being entered.
R=rmcilroy@chromium.org,oth@chromium.org
BUG=v8:4674
LOG=n
Review URL: https://codereview.chromium.org/1605633003
Cr-Commit-Position: refs/heads/master@{#33414}
Platforms which do not provide rounding instructions (like x64 without
sse4.1, arm before v8) fall back to this new soft float inplementation.
BUG=575379
LOG=Y
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/1611513003
Cr-Commit-Position: refs/heads/master@{#33412}
The motivation for this is that CompilationInfo really shouldn't
explicitly know anything about CodeStubs. This is evident in
the TurboFan stubs pipeline, which only needs to pass down
information about Code::Flags to the code generator and not
any of the CallInterfaceDescriptor silliness that Hydrogen has
to push around, since TF has the Linkage class that
encapsulates everything that is needed for the stub ABI. So,
instead of threading CodeStub machinery through the TF stub
pipeline, it is now removed from CompilationInfo and replaced
by only the explicit bits needed both by the Crankshaft and
TF pipelines in code generation.
Review URL: https://codereview.chromium.org/1604543002
Cr-Commit-Position: refs/heads/master@{#33410}
This is to fix some of the failing test262 tests with ignition flag.
In few test262 tests, there is a throw from the script scope. Rewriter::Rewrite
pass converts expression statements into assignment statements in script scope.
This causes interpreter to fail because assignment expression expects a result
in accumulator but throw statement does not return a value. To fix this, we
now mark that accumulator contains a value when visiting throw statement.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1523423003
Cr-Commit-Position: refs/heads/master@{#33408}
* Treat Select nodes as escaping
* Correctly void virtual field information
after a store to a non-const index
* Add a shortcut if all allocates escape
* Add a shortcut if no allocates are discovered
* Only reduce FrameState/StateValues nodes if they
have virtual allocates as input (transitively)
* Fix bug in FrameState/StateValues duplication
* Add check to verifier: First 3 inputs of FrameState
must be StateValues
R=mstarzinger@chromium.org
BUG=v8:4586
LOG=n
Review URL: https://codereview.chromium.org/1583213003
Cr-Commit-Position: refs/heads/master@{#33406}
Currently we fail to properly handle shadowed properties. If the
receiver defines a non-enumerable property that reappears on the
prototype as enumerable it incorrectly shows up in [[Enumerate]].
By extending the KeyAccumulator to track non-enumerable properties
we can now properly filter them out when seeing them further up in
the prototype-chain.
BUG=v8:705
LOG=y
Review URL: https://codereview.chromium.org/1608523002
Cr-Commit-Position: refs/heads/master@{#33405}
This removes the above flag definition. The flag is no longer needed as
the default implementation is more than capable of faking presence of
handling of try-catch and try-finally constructs by now.
R=rmcilroy@chromium.org
BUG=v8:4674
LOG=n
Review URL: https://codereview.chromium.org/1603063003
Cr-Commit-Position: refs/heads/master@{#33402}
This implements a first version of exception handler table construction
within the interpreter. Note that the local control flow for try-catch
and try-finally statements is still off, and also stack unwinding does
not yet respect interpreter frames. But generated handler tables should
be populated correctly already.
R=oth@chromium.org
BUG=v8:4674
LOG=n
Review URL: https://codereview.chromium.org/1607433005
Cr-Commit-Position: refs/heads/master@{#33400}
The old handling of escaped keywords erroneously treated escaped versions
of "let" and "static" as ESCAPED_KEYWORD, leading to erroneous errors in
sloppy mode. Moreover, though the class literal parsing code attempted
to fix up the parsing of escaped versions of "static" to allow it in the
right places, that code wasn't complete.
Fixing the scanner to mark escaped "static" as ESCAPED_STRICT_RESERVED_WORD
allows simplifying the class literal parsing code. A little extra code
was needed to properly handle the new treatment of escaped "let".
Note that "yield" is still broken (that is, we're overly restrictive of
escaped "yield" in sloppy mode).
Review URL: https://codereview.chromium.org/1602013007
Cr-Commit-Position: refs/heads/master@{#33396}
This patch implements one aspect of ES2015 RegExp subclassing:
String.prototype.replace is separated into two parts, a method on
RegExp.prototype in case the first argument is a RegExp, and the
String.prototype.replace method, which handles the string pattern
case. This separation is described in the ES2015 specification.
Most of the patch is simply moving code from string.js to regexp.js.
R=yangguo
LOG=Y
BUG=v8:4343
Review URL: https://codereview.chromium.org/1590673002
Cr-Commit-Position: refs/heads/master@{#33393}
o Adds wide variants of bytecodes that have operands describing ranges
of registers. The upcoming wide register support does not suppport
re-mapping ranges.
o Adds kRegPair16 and kRegTriple16 operands required for new wide
bytecodes and renames Count8/Count16 operands to RegCount8/RegCount16.
o Removes Exchange bytecodes
BUG=v8:4675
LOG=NO
Review URL: https://codereview.chromium.org/1595103006
Cr-Commit-Position: refs/heads/master@{#33389}
Fixes a bug where the context would be popped before labeled block break target
location.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1601153002
Cr-Commit-Position: refs/heads/master@{#33388}
Newly added tests cctest/test-run-wasm-js/Run_JSSelect_0...6 cause failures
on MIPS bigendian and are skipped until a solution is found.
BUG=
Review URL: https://codereview.chromium.org/1608813003
Cr-Commit-Position: refs/heads/master@{#33387}
Now that we support eval in Ignition, remove the fallback for eval checks
and make the flag only fallback on catch blocks.
BUG=v8:4280,v8:4676
LOG=N
Review URL: https://codereview.chromium.org/1595223004
Cr-Commit-Position: refs/heads/master@{#33384}
VisitObjectLiteral has two parts. First it creates a literal and then
sets properties or accessor properties. Setting properties requires a
runtime call and it expects the literal object which was created in the
first part is contiguous with other registers it allocates. Since these
are allocated in a different scope they are not always contiguous.
This causes problems with mjsunit/setter-on-constructor-prototype.js.
This cl fixes by allocating contiguous registers in the inner scope.
Literal value is copied into the newly allocated register so that all
the required registers are always contiguous.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1588903002
Cr-Commit-Position: refs/heads/master@{#33371}
Reason for revert:
Code is incorrect for -0.
Original issue's description:
> [turbofan] Implement rounding of floats on x64 and ia32 without sse4.1.
>
> The implementation sets the rounding mode flag and then uses the
> cvtsd2si and cvtsi2sd instructions (convert between float and int) to do
> the rounding. Input values outside int range either don't have to be
> rounded anyways, or are rounded by calculating input + 2^52 - 2^52 for
> positive inputs, or input -2^52 + 2^52 for negative inputs. The original
> rounding mode is restored afterwards.
>
> R=titzer@chromium.org
>
> B=575379
>
> Committed: https://crrev.com/fa5d09e547abe79a8c82f780deb980c53ad78beb
> Cr-Commit-Position: refs/heads/master@{#33367}
TBR=titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1593313010
Cr-Commit-Position: refs/heads/master@{#33369}
The implementation sets the rounding mode flag and then uses the
cvtsd2si and cvtsi2sd instructions (convert between float and int) to do
the rounding. Input values outside int range either don't have to be
rounded anyways, or are rounded by calculating input + 2^52 - 2^52 for
positive inputs, or input -2^52 + 2^52 for negative inputs. The original
rounding mode is restored afterwards.
R=titzer@chromium.org
B=575379
Review URL: https://codereview.chromium.org/1584663007
Cr-Commit-Position: refs/heads/master@{#33367}
This became temporarily a big issue, because spreads are desugared
into do-expressions. This patch fixes the problem with having
spreads as parameter initializers in arrow expressions, e.g., this
line would crash:
[], ((x = [...[42]]) => x)();
R=rossberg@chromium.org
BUG=chromium:578038
LOG=N
Review URL: https://codereview.chromium.org/1581403007
Cr-Commit-Position: refs/heads/master@{#33365}
Proxy.
If a constructable Proxy changes the target's prototype during the
prototype lookup the target's initial map stays uninitialized half-way
during object construction.
LOG=n
BUG=chromium:578039
Review URL: https://codereview.chromium.org/1586203003
Cr-Commit-Position: refs/heads/master@{#33359}
Make ForInPrepare take a kRegTriple8 operand and ForInNext take kRegPair8
operand for cache state. This is to ensure that the cache state output of
ForInPrepare is in consecutive registers to allow us to deopt the
ForInPrepare node from TF->Ignition (to be done in a followup CL).
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1584813002
Cr-Commit-Position: refs/heads/master@{#33357}
Adds support for variable and function declarations in lookup slots to the
interpreter.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1583783003
Cr-Commit-Position: refs/heads/master@{#33355}
This includes anonymous Function, Generator, and Class declarations when
preceded by 'export default'. Parsing only at the moment, nothing useful is
done with the parsed Function/ClassLiteral.
BUG=v8:1569
LOG=n
Review URL: https://codereview.chromium.org/1589173002
Cr-Commit-Position: refs/heads/master@{#33344}
When derived constructors return a non-object (or not undefined) we
currently throw an exception directly in the callee context. This was
achieved by desugaring the return statement for derived classes. To
be spec compliamnt a separate ConstructStubForDerived is introduced.
Instead of trowing directly, the desugared return statement inside
a derived constructor only returns an integer to indicate an incompatible
result.
BUG=v8:4509
LOG=n
Review URL: https://codereview.chromium.org/1593553002
Cr-Commit-Position: refs/heads/master@{#33336}
We can return the creation context of the [[BoundTargetFunction]], and
don't need to remember the context in which the function was bound.
R=verwaest@chromium.org
BUG=chromium:535408
LOG=n
Review URL: https://codereview.chromium.org/1590273002
Cr-Commit-Position: refs/heads/master@{#33332}
