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* Replace old Q_DECL statements with modern C++Allan Sandfeld Jensen2020-10-311-2/+2
| | | | | | | Since we depend on C++17 now, all of these can go. Change-Id: I0484fd4bb99e4367ec211c29146c316453729959 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
* Rename QQmlSequence to QV4SequenceUlf Hermann2020-09-211-2/+2
| | | | | | | This feature is available without QML, in pure JavaScript. Change-Id: Iec8a52ed10ed3eeaec24d3955c8c132bf2bd9677 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Implement URLSearchParamsMaximilian Goldstein2020-05-061-0/+1
| | | | | | | | | | Implements URLSearchParams (https://url.spec.whatwg.org/#urlsearchparams), completing our implementation of the URL object. Still needs the for..of iterator to get implemented. Change-Id: Iad33ed2f3fe0b2598ca2b0b21a4743f5f7dc19fd Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* Implement URL objectMaximilian Goldstein2020-04-081-0/+1
| | | | | | | | | Implements the JavaScript URL object (https://url.spec.whatwg.org/#api). Except that it does not currently implement the searchParams field. Task-number: QTBUG-54988 Change-Id: I19abc69e075cbf84bd15e6791be195ce16f3fe73 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Don't include qv4enginebase_p.h in qmldevtoolsUlf Hermann2019-05-101-1/+0
| | | | | | | | We don't need it and we don't need to check for V4_BOOTSTRAP in there. Shuffle some includes around to provide everything we do need. Change-Id: I3e75f1c6f9dc518006aabc9dcee21e5153899ac5 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Unify layout of function objectsLars Knoll2018-09-271-0/+4
| | | | | | | | | | Ensure we have the proto property at always the same place. This will be used in a subsequent commit to optimize accesses to the prototype property e.g. when doing instanceof operations or constructor calls. Change-Id: I6e9a19e0b7d0e8ab583648a60d1978f5cf838b06 Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* Get rid of remaining assumptions about setter being next to gettersLars Knoll2018-09-271-2/+2
| | | | | | | | The only place where we now assume that getters and setters are next to each other in the MemberData is in the internal class. Change-Id: I3285f3abb1cbfe051853e808339cd360eb602262 Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* Prefix vtable methods with virtualLars Knoll2018-07-031-3/+4
| | | | | | | | | Turns out that the overloading of vtable methods and regular ones is problematic in some cases. So let's rather make it explicit which methods are part of the vtable, and which aren't. Change-Id: Ifee32a26104d30f3c82bca8b5a9cdea2d4f4f526 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Unify the managed and object vtablesLars Knoll2018-07-031-3/+1
| | | | | | | | | | Allow for nullptr entries in the vtable. To nevertheless get some decent error checking if one of the methods is reimplemented, use a base class for Managed that contains a full set of the vtable entries all being nullptr's. Change-Id: Ibc53973b539f87331e8e465a6c44436a30acbefd Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Move the Vtable for Managed objects into it's own fileLars Knoll2018-07-031-54/+2
| | | | | | | | Move both the code from qv4object and qv4managed into a new qv4vtable_p.h file. Change-Id: Ib1d58120b6c3b9b779b2692526c7e40a5265c4db Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Replace Identifier by PropertyKeyLars Knoll2018-07-021-1/+1
| | | | | | | | Change all uses of Identifier to use the new PropertyKey class and get rid of Identifier. Change-Id: Ib7e83b06a3c923235e145b6e083fe980dc240452 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Partial Proxy supportLars Knoll2018-06-251-0/+1
| | | | | | | | get, set and deleteProperty proxying is implemented, the others require some more changes in our engine. Change-Id: I4dd4b154b1a582f5e36cdc9429fa049fd37d5167 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Add the start of a Map from ES7Robin Burchell2018-06-011-0/+1
| | | | | | | | | | 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>
* Add the start of a Set from ES7Robin Burchell2018-05-301-0/+1
| | | | | | | | | | 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 some basic support for for-of loopsLars Knoll2018-05-091-1/+1
| | | | | | | | | | | | | The support is basically at the same level as for for-in at the moment. Currently unimplemented: * Destructuring * Proper lexical scoping * calling iterator.throw()/return() when required Change-Id: If193ce0b054c4315fc16b7e174334a31b2730dcf Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Add Generator supportLars Knoll2018-05-031-0/+1
| | | | | | | | | | | | | 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>
* Don't use bitfields for VTable flagsLars Knoll2018-05-031-1/+1
| | | | | | | | | Accessing those is significantly slower than using a byte for each flag. As they are performance critical, let's rather use some more bytes in the vtable. Change-Id: I7104d3b791f469fe5d6705f20db0c965878126e2 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Fix console.log for sequence types such as QStringListSimon Hausmann2018-05-021-0/+1
| | | | | | | | | | The output should be the same as if we were printing an array, with brackets. Task-number: QTBUG-67776 Change-Id: I942df66a2908f82ea8ba1ce65676413569cf6f02 Reviewed-by: Mitch Curtis <mitch.curtis@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Implement StringIteratorLars Knoll2018-05-021-0/+1
| | | | | | | | Add support for String.prototype[Symbol.iterator] and the StringIterator object. Change-Id: I72c4f988e4f363be1af51f9cc5f8e83af43cd151 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Add Array Iterator objects from ES6 (22.1.5)Robin Burchell2018-05-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Add SymbolObject, well known symbols and fix most remaining issuesLars Knoll2018-05-021-0/+2
| | | | | | | | | 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>
* Partial Symbol supportLars Knoll2018-05-021-0/+1
| | | | | | | | | 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>
* Remove String dependency from InternalClassLars Knoll2018-05-021-3/+0
| | | | | | | | This is required, so we can also use Symbols in the internal classes. Change-Id: I630e7aa7b8b16d5a94041f8d18515fd582f94264 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Add a StringOrSymbol intermediate class between Managed and StringLars Knoll2018-05-021-0/+2
| | | | | | | | | This introduces a common base class for Strings and Symbols giving us a unified approach to handling object properties for both. Change-Id: Ic9e5a18b084c8b730e134db990f101d47af224e3 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Use Identifier by value and don't new them anymoreLars Knoll2018-05-021-1/+1
| | | | | Change-Id: Ib25c08027013217657beb2675dafa9a8c85cbaf9 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* garbage collect InternalClassLars Knoll2018-04-121-5/+32
| | | | | | | | | | | | | | | | 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>
* Better encapsulation for EngineBase::internalClassLars Knoll2018-04-121-1/+1
| | | | | | | | 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>
* Remove dependency from qv4heap_p.h onto qv4internalclass_p.hLars Knoll2018-04-121-4/+5
| | | | | | | | This is required to be able to turn the internal class into something that lives on the GC heap. Change-Id: Ie4318588d420743b1e1ab1cd596a1c9d153eb793 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Raise minimum supported MSVC version to 2015Friedemann Kleint2018-01-061-1/+1
| | | | | | | | | | | | Remove code for older versions and streamline #ifdefs. Remove the helpers macros Q_STATIC_ASSERT_FOR_SANE_COMPILERS and V4_ASSERT_IS_TRIVIAL. Task-number: QTBUG-40658 Task-number: QTBUG-51673 Change-Id: Ifa4fab653b10ce7858739adef08364cddc6507cf Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Allow tuning the amount of inline properties per object typeLars Knoll2017-11-151-1/+2
| | | | | | | | | Different JS objects need different amount of properties by default. Tune the amount of inline properties we pre-allocate by what's usually needed for the object. Change-Id: I2703d123939f9b7e3a06531361cbb6a3a3c04944 Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* Bring back markObjects(), this time generatedLars Knoll2017-11-141-5/+7
| | | | | | | | Doing the marking of objects in a function instead of using the table seems to be somewhat faster. Change-Id: I9ec00cc0264f9a15c69b285db493bee31d99bf96 Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* Merge remote-tracking branch 'origin/5.9' into devLiang Qi2017-06-061-0/+11
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: .qmake.conf src/qml/jsruntime/qv4argumentsobject.cpp src/qml/jsruntime/qv4arraydata.cpp src/qml/jsruntime/qv4context.cpp src/qml/jsruntime/qv4context_p.h src/qml/jsruntime/qv4errorobject.cpp src/qml/jsruntime/qv4functionobject.cpp src/qml/jsruntime/qv4internalclass.cpp src/qml/jsruntime/qv4lookup.cpp src/qml/jsruntime/qv4managed.cpp src/qml/jsruntime/qv4managed_p.h src/qml/jsruntime/qv4object.cpp src/qml/jsruntime/qv4object_p.h src/qml/jsruntime/qv4qmlcontext.cpp src/qml/jsruntime/qv4runtime.cpp src/qml/jsruntime/qv4vme_moth.cpp src/qml/memory/qv4heap_p.h src/qml/memory/qv4mm.cpp src/qml/memory/qv4mm_p.h src/qml/memory/qv4mmdefs_p.h src/quick/scenegraph/util/qsgdistancefieldutil.cpp src/quick/scenegraph/util/qsgdistancefieldutil_p.h tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp Change-Id: I7ed925d4f5d308f872a58ddf51fdce0c8494ec9c
| * Move the engine() accessor from Object to ManagedLars Knoll2017-05-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | We can easily do this now that Managed has a pointer to an internal class (which always has a back pointer to the ExecutionEngine). Remove the extra engine pointer from ExecutionContext, and clean up tow methods in String. Change-Id: I98d750b1afbdeadf42e66ae0c92c48db1a7adc31 Reviewed-by: Robin Burchell <robin.burchell@crimson.no>
| * Give standard objects a bit more inline storage by defaultLars Knoll2017-05-191-1/+1
| | | | | | | | | | | | | | | | | | Make sure we have at least 2 slots for inline storage available for regular JS objects. Speeds up JS execution quite a bit, while still keeping memory consumption low for most other cases. Change-Id: I01824d8db1ffd828c1c1b6a9cbcf9bf1a9070ec3 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
| * Move the internalClass field from Heap::Object to Heap::BaseLars Knoll2017-05-191-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | And do not store the vtable in Heap::Base anymore. This change makes the internal class the main distinguishing feature of all garbage collected objects. It also saves one pointer on all Objects. No measurable impact on runtime performance. Change-Id: I040a28b7581b993f1886b5219e279173dfa567e8 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
| * Add ICs for String, MemberData and ArrayDataLars Knoll2017-05-191-0/+5
| | | | | | | | | | Change-Id: I43ddcb4842e501cbea8a950ab6ffa2d906014efd Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
| * Re-add some inline property storageLars Knoll2017-05-081-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It turns out that not using any inline property storage comes at a relatively high price in terms of memory consumption, as we always need to also create a memberData for any object. This avoids the memberData creation in quite a few cases, as we use the additional padding we have up to the 32 byte boundary given by the memory manager to store some property data. This complicates property access somewhat. To avoid performance regressions because of this, add specialized QV4::Lookup functions that optimize for properties that are inline or in the memberData struct. Change seems to be performance neutral on v8-bench on x86_64, but reduces peak memory usage when running the benchmark by around 20%. Change-Id: I0127d31a2d6038aaa540c4c4a1156f45ca3b7464 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io> Reviewed-by: Robin Burchell <robin.burchell@crimson.no>
* | Micro optimizationLars Knoll2017-04-071-0/+1
| | | | | | | | | | | | | | | | Avoid the check whether the Value has a HeapObject if the Value is a Managed. Change-Id: I1dd42126cab57d094698402390fdcb4e427a7919 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* | Separate the stack used for GC from the regular JS stackLars Knoll2017-04-071-1/+1
| | | | | | | | | | | | | | | | This is required to be able to implement concurrent or incremental garbage collection. Change-Id: Ib3c5eee3779ca2ee08a57cd3961dbcb0537bbb54 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* | Add an actual write barrier and centralize it in one placeLars Knoll2017-03-091-0/+1
| | | | | | | | | | | | | | | | All stores into the Heap from C++ and Moth should now go through the write barrier. Change-Id: Iae9347754b90d68c10fade9f345842e86ec460cd Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* | New mark table implementationLars Knoll2017-03-091-1/+4
|/ | | | | | | | | | | | | | | | | | | Automatically generate a table containing the data where JS Values and pointers are in objects in the JS heap. This will allow making the GC mark phase a lot more efficient. A bit of a special hack is currently required for MemberData and ArrayData, as they have a variable length, and we need to read the size from the object. We keep backwards compatibility with the old markObjects() functions for now (calling them if they are defined). Some further work on QV4::String and in a few other places is required before we can get remove the compatibility. Change-Id: I78528ace67e886bdbe4a4330c9677c7fc9f08a33 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Micro optimizationLars Knoll2016-12-131-0/+7
| | | | | | | | Avoid checking whether the object is a Managed if we already know that. Change-Id: I78234b47269d3eb1a322fdafe7654f91dae7545a Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Cleanup Value::isObject/objectValue usagesLars Knoll2016-11-291-0/+5
| | | | | | | | Try to avoid calling both as objectValue() already checks isObject(). Change-Id: I1d770d4d9dabed4ea4cc3e322b8fdc5a64f5bd2b Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Clean up duplicated checks whether a Value is a ManagedLars Knoll2016-11-291-4/+2
| | | | | Change-Id: Ib044be254dbb41bd9fb4a6e0baa3bd3c007e6a2a Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Work around -Wtautological-compare warnings on clang 3.6Lars Knoll2016-11-111-1/+8
| | | | | | | Same workaround as for gcc 6.0 Change-Id: I6137b226c05ddc287bea7230d1f546c5fcf8371f Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Merge remote-tracking branch 'origin/5.6' into 5.8Simon Hausmann2016-10-131-1/+15
|\ | | | | | | Change-Id: I175b27337b534c0b8f46a4a792d2c43cde73ffc4
| * Fix developer-build with gcc 6Allan Sandfeld Jensen2016-10-101-1/+15
| | | | | | | | | | | | | | | | Locally suppress bogus tautological compare warnings. Task-number: QTBUG-56266 Change-Id: Ic1b554982a778cdd89c8047483523c44d53bbadd Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* | QML: Make Heap::Object and all subclasses trivialErik Verbruggen2016-10-061-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | GCC6 might dead-store-eliminate out our secret write to Base::mmdata, because it expects all memory content to be "undefined" before constructor calls. Clang might take the same approach if the constructor of Heap::Object is removed. By making these structs trivial, it also makes them memcpy-able. Change-Id: I055b2ad28311b997fbe059849ebda4d5894eaa9b Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* | QML: Introduce destroy() on Base subclassesErik Verbruggen2016-10-051-1/+1
| | | | | | | | | | | | | | | | This removes the destructors of subclasses of Base, making them nearly trivial. Change-Id: Ia6f7d467e87899b5ad37b8709a8f633a51689d59 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* | QML: Make all context objects trivialErik Verbruggen2016-09-301-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change also adds a check to the d() calls for Managed, verifies that the object has been initialized. This is only done for debug builds. To prevent other code from tripping the check, a number of other classes are either marked as trivial, or do initialization in the constructors. Because of template function changes in them memory manager (those now call init() instead of in-place new), String has an extra parameter to force it to temporarily use an old/unmodified template function. Change-Id: I8c35161ce7680835d830638b6d21498c5129b02b Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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