We need to move the Data objects out of the Managed
objects, to avoid lots of trouble because inner classes
can't be forward declared in C++.
Instead move them all into a Heap namespace.
Change-Id: I736af60702b68a1759f4643aa16d64108693dea2
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
The methods don't require a context, and thus shouldn't be
implemented there.
Change-Id: If058e0c5067093a4161f2275ac4288aa2bc500f3
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Use the correct destructor in QV4::QQmlSequence::destroy() to prevent
memory leak
Change-Id: If9531f731abe5cd9aecfb9642ebf4f5108978f99
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
The C++ standard doesn't allow calling member functions
on a mull object. Fix all such places, by moving the checks
to the caller where required.
Change-Id: I10fb22acaf0324d8ffd3a6d8e19152e5d32f56bb
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
The as<> casting method was not doing the right thing
in 100% of the cases. It only checked if the object in
question was exactly of the type being asked for. It
however didn't check if the object was derived from the
type.
This commit fixes this by adding a parent chain to the
vtables, that is then being used to check this safely
at runtime.
Change-Id: I9e0b13adbda668aee8c7451e2bb71cd6d4e316d9
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Instead of allocating the data directly, centralize the object and its ::Data
allocation in one place in the memory manager. This is in preparation for
additional pointer indirection later.
Change-Id: I7880e1e7354b3258b6a8965be378cd09c9467d25
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Remove the Ref classes, as they won't be required
anymore once Managed and Managed::Data are separated.
Change-Id: Ic6bec2d5b4ecf2595ce129dbb45bbf6a385138a5
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
The _NEW variant was there only temporarily to aid converting
to the new data layout.
Change-Id: I1d126ee0999c8f0a49f5a08c2e8c090497dd6dd5
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
This prepares for moving over to a d pointer scheme,
where Managed subclasses don't hold any data directly. This
is required to be able to move over to a modern GC.
Change-Id: I3f59633ac07a7da461bd2d4f0f9f3a8e3b0baf02
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Move all our runtime methods into the QV4::Runtime
struct and give them nicer names without underscores.
Sort them logically and remove a few unused methods.
Change-Id: Ib69b71764ff194d0ba211aac581f9a99734d8180
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
In some places we allocate custom array objects and in the constructor we call
setArrayType, which will allocate the array's data through the GC. In all of
these cases we need to make sure that the array object itself is protected from
garbage collection, because while in the constructor it may not be yet in the
scope the callee has usually set up.
Change-Id: I96b7af4ae00fd809067e12bacd6563984c5e9240
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
Keep the basic methods in ManagedVTable, but have
the Object related stuff in an ObjectVTable class.
Change-Id: I9b068acf3caef813686227b8d935e7df1a7d1a6e
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Split up ArrayData into two classes, one for regular
arrays, one for sparse arrays and cleanly separate
the two cases. Only create array data on demand.
Change-Id: I9ca8d0b53592174f213ba0f20caf93e77dba690a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Move the type flag into the vtable to free up these
bits in the Managed class, and not have to set them
at object construction time.
As we often need to know whether a Managed object is a
Object, FunctionObject or String, add some bitflags to test
for these to the vtable.
Change-Id: I7d08ca044544debb307b55f124f34cb086ad9e84
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Encapsulate accesses to the current context, and rework
the way we push and pop this context from the context
stack.
Largely a cleanup, but simplifies the code in the long term
Change-Id: I409e378490d0ab027be6a4c01a4031b2ea35c51d
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Remove all the calls to setVTable that were in performance
critical parts of the code. This now brings performance
back to the level we had with the vtable inlined in the
Managed objects.
Change-Id: I76317cc5c53b5b700d1d3883b954407142a4c424
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
This saves one pointer per object, and willmake other optimizations
easier in the future.
Change-Id: I1324cad31998896b5dc76af3c8a7ee9d86283bfe
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Get rid of the SimpleCallContext, instead simply
use the CallContext data structure, but don't
initialize the unused variables.
Change-Id: I11b311986da180c62c815b516a2c55844156d0ab
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Don't write to objects if we have a pending exception to
avoid any side effects.
Change-Id: I9f93a9195a652dbae7033cc6ebb355d5d86e9b5e
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
We don't want to check for exceptions after every single
line on our runtime methods. A better way to handle this
is to add the check in all methods that have direct side
effects (as e.g. writing to a property of the JS stack).
We also need to return whereever we throw an exception.
To simplify the code, ExecutionContext::throwXxx methods now
return a ReturnedValue (always undefined) for convenience.
Change-Id: Ide6c804f819c731a3f14c6c43121d08029c9fb90
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Inline calls to get_element if the base is an
object with a simple array structure, and the index
is an integer number.
Implemented for 64bit only for now, saves ~25% on crypto.js
Change-Id: I3e34a6409169d90d3937f62264707d52a6c2f9f7
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
This makes pretty much all test cases pass with exact
garbage collection.
Change-Id: Ia874e3c17c3984afb7cfe370f9bd3ad8fe46699a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
This patch changes the exception handling API in the engine slightly, encapsulating
any use of direct throw statements and catch blocks with concrete types. In the future
we need to be able to change the way these are implemented, in order to ensure that
the correct stack unwinding code is triggered for throw and re-throw.
This patch separates the C++ exception object thrown from the V4 exception
(that includes value, throwing context pointer) and stores the latter inside
the engine.
In order for that to compile, ExecutionEngine::StackTrace and StackFrame had to
move into the QV4 namespace directly.
In addition the syntax for catching exceptions changes from
try {
...
} catch (QV4::Exception &ex) {
ex.accept(context);
QV4::ScopedValue exceptionValue(scope, ex.value());
}
to
try {
...
} catch (...) {
QV4::ScopedValue exception(scope, context->catchException());
}
Context::catchException() checks if there's a "current" exception in the engine,
and if not assumes that we caught an unrelated exception and consequently re-throws.
partiallyUnwind() is also gone and replaced with rethrowException(), in order to
encapsulate the re-throw.
Lastly, in the future nesting try/catch blocks isn't going to be possible due to
limitations in the common C++ ABI with regards to foreign exceptions.
Change-Id: Ic81c75b057a2147e3176d8e0b4d326c14278b47d
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
replaced with call to the GC safe ExceutionEngine::newString()
method.
Change-Id: I7258296e75ca724ff42b94a0d147bc33a05f8f68
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
This will simplify finding the remaining direct usages of
QV4::Value that need fixing.
Change-Id: I223099727436d5748027c84c53d9dfc4028e38ed
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
also store "toString" and "valueOf" as identifiers
in the engine and fix two places where we compared
strings the wrong way.
Change-Id: I70612221e72d43ed0e3c496e4209681bf254cded
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Lars Knoll
Simon Hausmann
Lars Knoll
Liang Jian
Jani Heikkinen
Simon Hausmann
Erik Verbruggen
Laszlo Agocs