Like Set, for the time being, this is baseed on top of ArrayObject: two
of them, one for keys, one for values. Again, this goes against the
spirit of the spec (which requires nonlinear access), but having the API
present is at least a start, and the implementation is easily changed.
Change-Id: Idcf0ad8d92eb5daac734d52e8e2dd4c8e0dd5109
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Based on top of an ArrayObject for now, which is admittedly a bit of a
cheat and not matching the "spirit" of the spec. OTOH, that makes it
easy to write, and is presumably quite lightweight, so perhaps this is acceptable
as a starting point.
Change-Id: Ibc98137965b3e75635b960a2f88c251d45e6e837
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Add Dat.prototype[Symbol.toPrimitive] and make use of those
methods in the toPrimitive implementation.
Change-Id: I82a9a94dcae6822100de364373b3f4de1e3d749b
Reviewed-by: Robin Burchell <robin.burchell@crimson.no>
Avoid double writes to the stack, and use scope.alloc() for
most allocations on the stack.
Change-Id: I8b89273c1b6796d955fc8eeb72c67cff208ef786
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Make the function conform to section 9.2.7.1 of the spec.
Change-Id: Ieb3295198f407d4404e06a54efb51a8b8496bbd7
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
When incubation is triggered from C++ and reaches the state of setting
the initial properties (as supplied to incubateObject), we'd set
engine->currentStackFrame to a CppStackFrame that provides access to the
correct QML context. As we're not called from the interpreter, the
v4Function pointer would be a null pointer. If during the initial
property setting an exception is thrown (due to non-existent property
access) and a back-trace is created, we'd end up dereferencing
v4Function.
Change-Id: I7f6b0ba7893bfb4186f55d4c213b4bb602d29aa0
Task-number: QTBUG-68416
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Array destructuring assignments require a call to iterator.return if
the iterator hasn't been exhausted during destructuring.
Change-Id: I39fe4bc01bef6fb2ad3bda92caf6779fbbddc8e2
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Added an IteratorNext instruction to fetch the next
iteration value (empty if the iterator is done).
This will also help to implement array destructuring without
requiring huge amounts of byte code.
Change-Id: If96c1e81471e5e2b0b7b2af122238d87741aa371
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
This requires a bit more work than simply pushing a
new BlockContext for the lexically declared variables,
as eval() and the Function constructor operate on the
global scope (including the lexically declared names).
To fix this introduce Push/PopScriptContext instructions,
that create a BlockContext for the lexically declared
vars and pushes that one as a global script context that
eval and friends use.
Change-Id: I0fd0b0f682f82e250545e874fe93978449fe5e46
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Get rid of a circular dependency when initializing
StringObject.prototype, by setting it's string value
later during the initialization process.
Change-Id: I5bdaff3936c1f8af12c4d53f95747b8aa43f4ef6
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
As it's being used for for(... in ...) loops. Also add a ES6
compatible iterator interface to it, so that we can unify
the handling of for-in and for-of.
Change-Id: I264f88ed049484945f5ea7e8bdf0227187456ba2
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Add support for ES6 generators. Those are currently
always executed in the interpreter (we never JIT them),
to simplify the initial implementation.
Most functionality, except for 'yield *' expressions
are supported. 'yield *' will have to wait until we
support for(... of ...)
Change-Id: I7c059d1e3b301cbcb79e3746b4bec346738fd426
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Add support for String.prototype[Symbol.iterator] and the
StringIterator object.
Change-Id: I72c4f988e4f363be1af51f9cc5f8e83af43cd151
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Centralize the code in FunctionObject::createBuiltinFunction and setup
function names and length properties there.
Change-Id: I21f1d42b475070ee091d96d97387149af1dc47f2
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
And implement / expose them via:
22.1.3.4 - Array.prototype.entries()
22.1.3.13 - Array.prototype.keys()
22.1.3.29 - Array.prototype.values()
22.1.3.31 - Array.prototype[Symbol.iterator]
Most tests for Array iterators now pass.
At the same time, expose them on TypedArray's prototype:
- 22.2.3.15 %TypedArray%.prototype.keys
- 22.2.3.29 %TypedArray%.prototype.values
- 22.2.3.6 %TypedArray%.prototype.entries
- 22.2.3.31 %TypedArray%.prototype[Symbol.iterator]
For TypedArray, test coverage improves a tiny bit (3 passing tests), but the
vast majority fail as it seems like the object structure for TypedArray is
currently incomplete as far as ES6 expects.
It seems that ES6 expects the object structure to be:
* %TypedArray% (inherits FunctionObject)
(this is the TypedArray intrinsic object, and responsible for initializing
the TypedArray instances)
* All the TypedArray ctors (e.g. UInt8Array)
These inherit %TypedArray%, and make a super call to it to do their work
* %TypedArrayPrototype% (inherits Object)
(this is the initial prototype for %TypedArray%)
* All the ctors have their own separate instance of this
* The instances also make use it
So, for instance, a lot of the tests attempt to access the prototype like:
var proto = Object.getPrototypeOf(Int8Array)
var keys = proto.prototype.keys
As ES6 expects Int8Array.prototype to be %TypedArray% (22.2.5), this expands to:
Object.getPrototypeOf(%TypedArray%)
which it expects to be %TypedArrayPrototype%.
But since we have no intrinsic object, and the ctors inherit
FunctionObject, we instead return the wrong prototype into 'var proto'.
Change-Id: I5e1a95a0420ecb70a0e35a5df3f65557510c5925
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Added SymbolObject, the equivalent to StringObject which was
still missing so far. Added the predefined standard symbols,
and fixed most test failures related to symbols.
Change-Id: I1e28b439e7c4f5141b4a09bd8fb666c60691f192
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Added basic infrastructure to create symbols and convert them
back to strings. In addition, storing and retrieving of symbol
based properties in Objects works.
Change-Id: I185f7aa46e7afa19db5a801102142892e03b7bf1
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Implemented by storing a backpointer to the Heap object
in the identifier.
Since identifiers now point back to their originating
String or Symbol, we can now easily mark all identifiers
that are still in use and collect those that aren't.
Since Identifiers are 64bit also add support for holding an
array index in there. With that an identifier can describe
any kind of property that can be accessed in an object. This
helps speed up and simplify some code paths.
To make this possible, we need to register all
IdentifierHash instances with the identifier table, so that
we can properly mark those identifiers.
Change-Id: Icadbaf5712ab9d252d4e71aa4a520e86b14cd2a0
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
This is required, so we can also use Symbols in
the internal classes.
Change-Id: I630e7aa7b8b16d5a94041f8d18515fd582f94264
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Remove the need for a specialized catch context, instead
use a regular block context, that also captures the
catched variable.
This also removes the need to do lookups by name inside
a catch expression.
Change-Id: I8b037add7f423922e2a76b4c0da646ca7e25813a
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
This brings it closer in line with the ES8 spec. Also
remove a couple of tests testing the 'caller' property
of non strict functions, as it's not mandated by the
spec and we never set it.
Change-Id: Icece8a03989c474df1eae0e4e77b356e49575b32
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
There's no point in trying to treat syntax errors specially here.
Change-Id: Idde8f9c9669f183e1b8f5b17bb7e4299fc5f1e5f
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Internal classes are now allocated and collected through
the GC. As they are important to the deletion of other
objects (because of the vtable pointer living inside the
internal class), they need to get destroyed after regular
objects have been sweeped. Achieve this by using a separate
block allocator for internal class objects.
Our lookups do often contain pointers to internal classes,
so those need to be marked as well, so we don't accidentally
collect them.
Change-Id: I4762b054361c70c31f79f920f669ea0e8551601f
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Turn it into a method instead of accessing the array directly
to simplify refactoring.
Change-Id: I197b56c8f58cfdfd294f429e6b15268c755f9837
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
They don't need a prototype argument neither anymore.
Change-Id: I80fa99cb382e8dca4cfa51fdd87b4c9b0f59573a
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Some compilers (in this case MingW 5.3) don't manage to properly
disambiguate the template overloads, and try to instantiate the
wrong template function.
Solve this by renaming the one of the template functions.
Change-Id: I3574e617fe96c4bd52920a0127a1dfe39cc3d302
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
The prototype argument has been unused for quite some time,
finally remove it.
Change-Id: Ifcebe413a1951ed972b370afc48640bd22969943
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
We can manage without calls to changeVTable() here, as the
set of classes allocated with this is rather limited.
Change-Id: I804e4850b91c61ebbca8a04edbe51deac911928d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Makes it easier to transition it over to be controlled
by the GC.
Change-Id: I6bea738b3852abfc7870b71e639efc595eeb28fc
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Given the following expression
var x = MySingleton.MyEnumValue
where MySingleton is a QML (composite) singleton and MyEnumValue comes
from a QML declared enum, we had code in place up to (and including)
5.10 to attempt to optimize that expression to a enum constant at
compile time. In 5.10 that optimization does not exist anymore. In <=
5.10 we would also skip the optimization under certain circumstances
(too many statementes, etc.). The fallback that is in place for handling
this at run-time tried to be smart by avoiding the
QQmlContextWrapper::get lookup and return straight a reference to the
singleton as QObject. That works for regular property lookups, but it
fails when trying to look up something like an enum, that isn't a
meta-object property.
Change-Id: I1819b9d8ae06a3f595e067bf5b018c4065be76bb
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
qtdeclarative/src/qml/jsruntime/qv4engine.cpp:913:78: error: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘struct QV4::Property’ with no trivial copy-assignment [-Werror=class-memaccess]
memcpy(argumentsAccessors, oldAccessors, oldSize*sizeof(Property));
Change-Id: I6e3d6a1a26fda33aa47c315a183edba9dcd0c0b9
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
From now on we prefer nullptr instead of 0 to clarify cases where
we are assigning or testing a pointer rather than a numeric zero.
Also, replaced cases where 0 was passed as Qt::KeyboardModifiers
with Qt::NoModifier (clang-tidy replaced them with nullptr, which
waas wrong, so it was just as well to make the tests more readable
rather than to revert those lines).
Change-Id: I4735d35e4d9f42db5216862ce091429eadc6e65d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
When the code generation capability is not set, the first call of
canAllocateExecutableMemory will cause a warning about suboptimal
performance. The qWarning code checks, which thread caused the message
and QThread::current sets QCoreApplicationPrivate;s theMainThread when
it is called for the first time on Windows.
If we call that function inside a static initializer, it will be called
before QCoreApplication is created and thus set the main thread to the
one that called the function. This will cause a warning about QApplication
not being created inside the main() thread, but more importantly,
delivering of events will not work in WinRT applications afterwards.
Task-number: QTBUG-66418
Change-Id: I3b6bf804983644b5ae5fe2288a587dc95fab2c8b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
qv4sequenceobject.o is the largest single object in QtQml.so. This is
probably due to template and macro explosion. Not everyone will want to
pay this price to have Qt containers natively available in JS.
Change-Id: I7dc64566a653c865d5c1b6e4f21a3a9089db100a
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This regressed in commit b56f7d6f79. We
need to choose the YARR JIT (as well as the regular JIT) only if we can
allocate executable memory.
Change-Id: I150238fda7b3699cb1d7ffedeeed3c6f3f54132b
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
So far we often began with the empty class again when creating
new internal classes. This allowed for multiple paths through the
internal class hierarchy ending up at the same internal class object.
But to be able to efficiently garbage collect internal classes, we
need to have only one path to each instance of an internal class.
Change-Id: Ic6c1f2b3d021e92b44f76a04a8886820e63e8f26
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
The only engine we ever ask for QJSEngine is QV4::ExecutionEngine.
Change-Id: Ia1354e552bddac72177b7aa62de5a7a502089841
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Robin Burchell
Lars Knoll
Simon Hausmann
Qt Forward Merge Bot
Ville Voutilainen
Liang Qi
Shawn Rutledge
Oliver Wolff
Ulf Hermann