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* clean up Object::has(Own)PropertyLars Knoll2014-01-201-12/+29
| | | | | | | | | | hasProperty is now implemented by calling hasOwnProperty on the proto chain. In addition, it should be slightly faster and doesn't use API that returns a Property pointer anymore. Change-Id: I6312d83ccfed3f0a1a8ec4c72c436a426d6eab44 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Lookup::lookup should not return a Property pointerLars Knoll2014-01-201-4/+4
| | | | | Change-Id: I5c9858f636c199b9cbe7cb2bffa03db14b6e1ae4 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Cleanup: change signature of Object::insertMember()Lars Knoll2014-01-091-24/+12
| | | | | | | | | | | | Methods returning a Property pointer have to be removed, so that we can move over to store member data requiring only one value for the common case of data properties. This will in the long term reduce memory consumption on 64 bit systems quite a bit. Change-Id: I78de3794ec7b3bc5db13aa57275d3f08fa9d470a Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Smaller code cleanupLars Knoll2014-01-091-23/+12
| | | | | | | Move the check for isEmpty() into ArrayData::getProperty. Change-Id: I1791ced706afadbb2f45883cb1b3915f40500b71 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Rework array handling for JS objectsLars Knoll2014-01-091-394/+162
| | | | | | | | | 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>
* Fixes for argument objectsLars Knoll2014-01-091-2/+11
| | | | | | | | | Fix a possible infinite recursion, and a corner case where we wouldn't set the correct data when writing to the argument object Change-Id: Ia64b9f62e9b881e24d74e23d96d5eb27805a126f Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Add Object::hasOwnProperty()Lars Knoll2014-01-091-0/+10
| | | | | | | | This allows us to remove more getOwnProperty calls. This will be required later on to extend our array handling. Change-Id: I7b7f5887990cd443accf51891644fdfbb849cf35 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Move array data into it's own structLars Knoll2014-01-031-167/+167
| | | | | | | First step of separating the array data from Object. Change-Id: I5c857397f0ef53cff0807debdb1e405424e1046a Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Get rid of the nonStrictArgumentsObject flag in ManagedLars Knoll2014-01-031-1/+1
| | | | | Change-Id: I4ac58e9d87506ae930c2e44e6089f4af3cd9ccb2 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Move Managed::type and some flags into the vtableLars Knoll2014-01-031-3/+0
| | | | | | | | | | | | | 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>
* Clear out memory in the GC, not when constructing objectsLars Knoll2014-01-031-4/+0
| | | | | | | | Object construction shouldn't need to zero initialize itself, let's rather do this in the GC, where we can use fast memset's. Change-Id: I2f9efa1729183b0d737de5a84f92af319b2c5631 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Encapsulate the current context and fix it's usageLars Knoll2013-12-041-11/+11
| | | | | | | | | | | 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 setVTable calls in performance critical areasLars Knoll2013-12-041-4/+1
| | | | | | | | | | 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>
* Move the vtable pointer from the object to the internal classLars Knoll2013-12-041-4/+6
| | | | | | | | 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>
* Prospective fix for crashes when sorting JS arrays on WindowsSimon Hausmann2013-11-271-6/+2
| | | | | | | | | | std::sort doesn't seem to like sorting empty arrays, so check the size before sorting. Task-number: QTBUG-33658 Change-Id: I841259939ea3bf850d23c129744c322ed46a95fe Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
* Speed up arguments objectLars Knoll2013-11-221-1/+1
| | | | | | | | | | | | | | Don't fully create the arguments object unless required. In the 95% use case, we can avoid creating any array based data structures for the arguments object and directly manipulate the functions arguments. only create the full data structure for the other 5%. Speeds up the raytrace test by 50%, gives around 10% overall on v8-bench. Change-Id: If727d28b96585e83314f544031a6c3ca1817ea19 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* V4: fix Array.indexOf() for QStringListLiang Qi2013-11-201-1/+1
| | | | | | | | | Autotest is included. Task-number: QTBUG-33542 Change-Id: I46c3a81006019c6613a3d35aa018217f85a15d0b Reviewed-by: Simon Hausmann <simon.hausmann@digia.com> Reviewed-by: Liang Qi <liang.qi@digia.com>
* Greatly reduce memory consumed by QQmlEngine instancesLars Knoll2013-11-191-2/+2
| | | | | | | | | | | | | | | | Due to a inefficiency in our InternalClass implementation, we were not sharing the string and attribute table between internal class instances. This was extremely inefficient with the Qt object, as it created around 1000 internal classes with large string and property tables. With the patch these tables are now shared. Reduces memory consumption of a QQmlEngine instance from around 6.5M to a couple of 100k. Change-Id: Ib763f31deca0808c000ac2c30aa0b05e806bda40 Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
* Fix interaction between head room and appending in arraysLars Knoll2013-11-181-6/+6
| | | | | | | | | | We reserve space on both ends of the JS array for appending and prepending. Make sure they interact well with each other and don't cause any memory corruption. Task-number: QTBUG-34853 Change-Id: I184280178690e3cb12ab9b199a8436b32383af38 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Simplify & speed up function callingLars Knoll2013-11-091-4/+4
| | | | | | | | | 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>
* Refactor marking GC'ed objectsLars Knoll2013-11-051-9/+9
| | | | | | | | | | | 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>
* Fix various compiler warnings in order to remove warn_off in the near futureErik Verbruggen2013-11-041-10/+14
| | | | | Change-Id: Ic0492fbe31a1e134674bc6c20381f735dd6d5b7a Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Protect write accesses to objectsLars Knoll2013-10-291-1/+22
| | | | | | | | 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>
* Avoid side effects when en exception has been thrown.Lars Knoll2013-10-291-3/+7
| | | | | | | | | | | | | | 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>
* Some minor optimizationsLars Knoll2013-10-191-27/+31
| | | | | Change-Id: Ib2e08e7c89ca59a48f8fd52b30981e5d7e60803b Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* inline get_element callsLars Knoll2013-10-141-0/+5
| | | | | | | | | | | 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>
* Avoid creating array attributes if possibleLars Knoll2013-10-141-35/+28
| | | | | | | | | | | Holes in arrays should be represented by an empty value, not by creating/setting array attributes. Reason is that the creation is irreversable, and slows down execution. This speeds up crypto.js by 10% Change-Id: I2e5472575479a5f2dbe53f59ecb8ed3aeab1be7a Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Cleanup API of Safe<T>Lars Knoll2013-10-021-2/+2
| | | | | | | | Don't have an implicit cast operator to Returned<T> anymore, and return a T* from the operator->() Change-Id: If4165071b986bfc84a157560d94d39c2dcfbc9e1 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Remove more uses of ValueLars Knoll2013-10-021-2/+2
| | | | | Change-Id: I889e760f75b485a28e1f2a2c26b2337ae9bfafac Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Fix ObjectIterator API to be GC safeLars Knoll2013-10-021-14/+3
| | | | | Change-Id: I3a9c48d53d8dbadcb9b32c00fcef1f89447c4b8c Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* V4: remove inplace operationsErik Verbruggen2013-09-301-46/+0
| | | | | | | | | Inplace operations are expanded when building the IR, so the neither the IR, nor the instruction selection backends or runtime need to handle them. Change-Id: Id01f9544e137dd52364cf2ed2c10931c31ddfff3 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Remove more occurrences of QV4::ValueLars Knoll2013-09-301-13/+13
| | | | | Change-Id: I66c370680d7e6bee2e73a7a940aa96ab4009ec57 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Fix API for Object::define*PropertyLars Knoll2013-09-281-8/+8
| | | | | | | use ValueRef instead of const Value &. Change-Id: I3fd0ca829870db27f036825d713c53dc0600be07 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Fix Value usage in ErrorObjectsLars Knoll2013-09-281-3/+6
| | | | | Change-Id: Iaa14ad5a8d3f085843e49195f8f4bb7bb020b9b6 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Remove more direct QV4::Value usageLars Knoll2013-09-281-1/+1
| | | | | | | | Remove Value::fromString(String *), and make Encode safe against encoding raw Managed * pointers. Change-Id: Ibca4668e1cbeaf85c78169d14386281659d33ef6 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Move Value::fromBool, ... to a new Primitive classLars Knoll2013-09-281-12/+12
| | | | | | | | 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>
* Fix cases where mark() would access uninitialized memoryLars Knoll2013-09-221-4/+6
| | | | | Change-Id: I4e07e20d30ba57759a0ece1c298a02b098718b33 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Prevent objects from being collected while in their constructorLars Knoll2013-09-221-0/+2
| | | | | | | | | | | | | 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>
* Convert the last methods in qv4object_p.hLars Knoll2013-09-221-8/+8
| | | | | | Change-Id: I4fda83a0832760c277e629d4e658da718c0bf92b Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com> Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Fix some more methods to take ValueRef'sLars Knoll2013-09-221-2/+4
| | | | | | Change-Id: Ia0e30ba98c16e51c9992027c7e5f78d4def8697a Reviewed-by: Simon Hausmann <simon.hausmann@digia.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
* Convert Object::inplaceBinOp to be GC safeLars Knoll2013-09-221-14/+10
| | | | | Change-Id: I98a8591f4b556cc1d00271e6b389dc0d2c16e6ec Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Convert the remaining vtable methods to be GC safeLars Knoll2013-09-221-5/+5
| | | | | Change-Id: I679d1833609c41d71e8436ec0ba8a4624f0c4dd0 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Convert putIndexed()Lars Knoll2013-09-221-6/+6
| | | | | Change-Id: I7d02b0fdf45079d0f7afcfb6d3158dd60cb09f33 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* convert Managed::put() API to be GC safeLars Knoll2013-09-221-20/+22
| | | | | Change-Id: I09198ce372fa545372db389fac26828d21ad5731 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Use a StringRef for Managed::get()Lars Knoll2013-09-221-6/+17
| | | | | | | | | 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>
* Use StringRef for most methods in ObjectLars Knoll2013-09-221-22/+22
| | | | | Change-Id: I8e2dad0e9e34c5a549952bc0765cd57f6aa8aadf Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Cleanup Object::define*Property APILars Knoll2013-09-221-36/+21
| | | | | Change-Id: I99125908a9bc1d41a2642c409af9704def7a0832 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Add a Safe<T> class and start using itLars Knoll2013-09-221-7/+13
| | | | | | | | | | The class denotes objects that are stored safely in areas controlled by the GC. These we can convert fast to a StringRef etc. Change-Id: I6b154eccaefddc42d4fafca55b7ee9e77179830c Reviewed-by: Simon Hausmann <simon.hausmann@digia.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
* Start using StringRef for parameter passingLars Knoll2013-09-221-13/+15
| | | | | Change-Id: If2c41daeda2862cd1162c5da8163a9d62fe4111d Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Introduce a Referenced<T> class to pass Objects into methodsLars Knoll2013-09-221-4/+7
| | | | | | | | | | Added some convenience typedefs (StringRef, ObjectRef, ReturnedString, ScopedString, ...) Used StringRef in newBuiltinFunction() for testing. Cleaned up the duplicated code for thrower functions. Change-Id: I7b7676690cbe70d9eabb0a5afd0d922f0be3aefd Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>