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>
Detect existence of a a vtable entry at compile time.
Change-Id: Ieed5d34b063184bc4435b22c6685ac0e3fabf493
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
The method is now optional, and we can simply avoid
calling it if all members an object has are themselves
garbage collected.
Change-Id: If560fce051908bcc10409ead1a7d8a5bd5fa71d2
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
When enabling optimizations in the compiler, it produces bogus
code for the regExp->value deref in the line
nMatchOffsets += regExp->value->captureCount() * 2
This is a random refactoring to work around the compiler bug.
The only line that actually needs to be touched is the one mentioned
above, but I replaced all uses of regExp->value so that it
wouldn't look too weird.
Task-number: QTBUG-38692
Change-Id: Ib33a523a86ce51ebc6c7095a803fedaebcaa8e63
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Don't cast from ushort to uchar and back, and remove a
condition that's always true. Allocate some more
memory for matching.
Change-Id: I8167b6e4b4989365ca0ea8e17f4bdb15c0d8e27d
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>
Data properties don't contain valid data in the set field
if they are being stored in Objects. Thus we should never
access that field unless we are dealing with accessor
properties.
Change-Id: I19dcbaee7ebd042ae24387f92a93571d75ca578a
Reviewed-by: Simon Hausmann <simon.hausmann@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>
Store a simple vector of Values in the array data,
instead of a Vector of Property's. This halfes the
memory consumption on 64bit and simplifies our code.
If an indexed property gets converted to an accessor
property, we simply convert the ArrayData into a
SparseArrayData.
Add support in SparseArrayData to allocate double slots
(two Value's) to hold a full Property in case someone
sets an accessor on an indexed property.
Some methods still return a Property*, but this is safe, as
only the first Value in the Property pointer will ever get
accessed if the Property doesn't contain an accessor.
Change-Id: Ic9b0f309b09a2772a328d947a10faaf3be9fe56f
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>
First step of separating the array data from Object.
Change-Id: I5c857397f0ef53cff0807debdb1e405424e1046a
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>
Small optimisation for string additions, also add one more check
for exceptions in the code where required.
Change-Id: I6c14bc88ea5d03f7eeed0e0168c5195f9f823693
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Don't use recursive function calls anymore. Instead, push marked
objects onto the JS stack, and then pop them off when their children
are being marked.
Should reduce stack memory usage, and improves performance by ~5%.
Change-Id: I2d37d97579144fcba87ec8e9fd545dd220c01fbb
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>
This makes pretty much all test cases pass with exact
garbage collection.
Change-Id: Ia874e3c17c3984afb7cfe370f9bd3ad8fe46699a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
replaced with call to the GC safe ExceutionEngine::newString()
method.
Change-Id: I7258296e75ca724ff42b94a0d147bc33a05f8f68
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Remove Value::fromString(String *), and make
Encode safe against encoding raw Managed * pointers.
Change-Id: Ibca4668e1cbeaf85c78169d14386281659d33ef6
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Also clean up a few other direct uses of Value
Change-Id: Ie27d42c1b31b9e6d16d0a60071cb5e4e1c5b9e8b
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>
Make the methods GC clean, and simplify some logic
Change-Id: I02df8cb571f27d640c6effc871ea7c24b23b8368
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
While objects are being constructed, we don't have a reference to them
on the JS stack yet. So the constructor needs to protect itself against
being collected by putting the this object onto the JS stack.
Added an environment switch MM_EXACT_GC to test exact garbage
collection.
Change-Id: Ie37665a954de800359c272ffbebbe1488e7a8ace
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Change-Id: Ia0e30ba98c16e51c9992027c7e5f78d4def8697a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@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>
Add some more convenience in the helper classes
in qscopedvalue_p.h
Make accesses to CallData safer, and change
ExecutionEngine::newObject() to return a safe
pointer.
Change-Id: I980909754ce9681cf6faa1355bab3a1e5d6dd186
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
The class is going to be used all over the place, so let's
give it a short name :)
Change-Id: If61543cb2c885e7fbb95c8fc4d0e870097c352ed
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
This brings things more in line with ScopedValue, and
also simplifies cleanup of Scoped values.
Change-Id: If5f1466b4e13c629d56c1e7c638937f61ba48f77
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Lars Knoll
Eskil Abrahamsen Blomfeldt
Erik Verbruggen