60842 2011-05-14 12:46:13 -0700 [Qt] Qt bridge bindings should be rewritten using JSC API 2014-02-03 02:32:39 -0800 1 1 1 Unclassified WebKit WebKit Qt 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED Qt, QtTriaged P1 Major --- 62330 88161 93462 93463 93476 93649 93716 93720 93868 93872 93880 93889 93897 94695 94702 95325 95570 94691 1 oliver hausmann agbakken allan.jensen ararunprasad arurajku cmarcelo cshu girish hausmann kent.hansen lars.knoll laszlo.gombos loki luiz noam oliver ossy pvarga yael zherczeg oldest_to_newest 404092 0 oliver 2011-05-14 12:46:13 -0700 The Qt bridge bindings are a frequent source of pain and frustration for those of us working on the actual engine as they aren't obviously maintained and no one seems to claim any real ownership of them. For this reason they should be rewritten using the JSC API and so be protected from underlying changes in JSC. 404168 1 noam 2011-05-15 07:46:02 -0700 I'm trying to see how feasible it is and what we'd need to change in the API. So far it seems the main missing part is being able to access internal types that are known to WebCore, like ByteArray or HTMLElement. 404381 2 zherczeg 2011-05-16 02:32:45 -0700 I have already fixed several bugs in the bridge/qt, and in my experience the changes in the GC mechanism affects badly this code, like all the others in the bridge directory. I am thinking now what could be done here. 407783 3 noam 2011-05-22 23:50:25 -0700 *** Bug 39746 has been marked as a duplicate of this bug. *** 407791 4 94377 noam 2011-05-23 00:47:33 -0700 Created attachment 94377 WIP patch This patch still needs lots of work, but it covers the basics. Still doesn't work: 1. __qt_sender__ (the code is there, but crashes...) 2. ScriptOwnership 3. deleting properties It also doesn't pass the style tests and other things but I wanted people to see where things stand. 407994 5 94377 oliver 2011-05-23 08:55:21 -0700 Comment on attachment 94377 WIP patch View in context: https://bugs.webkit.org/attachment.cgi?id=94377&action=review There are a lot of changes that i don't understand in this patch. All that should be necessary is to change how your runtime classes are defined, everything else should "just work". > Source/JavaScriptCore/API/JSObjectRef.cpp:37 > #include "APICast.h" > #include "CodeBlock.h" > #include "DateConstructor.h" > +#include "DateInstance.h" > #include "ErrorConstructor.h" > #include "FunctionConstructor.h" > #include "Identifier.h" Why this change? > Source/JavaScriptCore/API/JSObjectRef.cpp:218 > - > + Remove this > Source/JavaScriptCore/API/JSObjectRef.h:365 > -} JSClassDefinition; > +} JSClassDefinition; > Don't change our API headers unless you have absolutely no choice. > Source/JavaScriptCore/API/JSObjectRef.h:468 > + Again don't change the API headers > Source/JavaScriptCore/API/JSValueRef.cpp:88 > +bool JSValueIsNaN(JSContextRef ctx, JSValueRef value) > +{ > + ExecState* exec = toJS(ctx); > + APIEntryShim entryShim(exec); > + > + JSValue jsValue = toJS(exec, value); > + > + return jsValue == jsNaN(); > +} > + This function it potentially broken in the presence of denormalised nan's. > Source/JavaScriptCore/API/JSValueRef.h:87 > +@abstract Tests whether a JavaScript value's type is the undefined type. > +@param ctx The execution context to use. > +@param value The JSValue to test. > +@result true if value's type is the undefined type, otherwise false. > +*/ > +JS_EXPORT bool JSValueIsNaN(JSContextRef ctx, JSValueRef value); > + > +/*! > +@function You cannot add API without review, and this function is unnecessary, so isn't going to pass muster. JSValueIsNumber(), JSValueToNumber() and isnan will do the required checks. > Source/WebCore/bindings/js/JSPluginElementFunctions.cpp:96 > + // Then, we check if the > + if (JSObject* scriptObject = pluginElement->getScriptObject()) > + return scriptObject; > + This change seems unrelated > Source/WebCore/bindings/js/ScriptControllerQt.cpp:-51 > -PassRefPtr<JSC::Bindings::Instance> ScriptController::createScriptInstanceForWidget(WebCore::Widget* widget) > +JSC::JSObject* ScriptController::createScriptObjectForWidget(Widget* widget) > { > - if (widget->isPluginView()) { I don't get why all these changes are necessary. All the this patch should need is for your current JSCell subclasses to switch over to the API for their construction. So these entirely new functions should not be too necessary. 408079 6 noam 2011-05-23 11:00:51 -0700 Why are you spending your time reviewing this? I haven't put an r? on it and made clear that this is WIP and needs a lot of more work. I've put it up so that people can track what's being done. For now it includes some API changes that of course I'd review separately. 685225 7 hausmann 2012-08-02 04:54:36 -0700 I'm working on this and am maintaining a work-in-progress patch set at https://github.com/tronical/webkit/commits/jsc-runtime . I'll create sub-tasks once I'm ready for inclusion to trunk. I'm doing the changes only for the Qt 5 code path, so I'm making this bug depend on bug #88161 974978 8 allan.jensen 2014-02-03 02:32:39 -0800 Mostly fixed, out of scope anyway. 94377 2011-05-23 00:47:33 -0700 2011-05-23 08:55:21 -0700 WIP patch patch.diff text/plain 184307 noam ZGlmZiAtLWdpdCBhL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9BUEkvSlNPYmplY3RSZWYuY3BwIGIv U291cmNlL0phdmFTY3JpcHRDb3JlL0FQSS9KU09iamVjdFJlZi5jcHAKaW5kZXggMmRmMDEwYS4u YTJjODI4ZiAxMDA2NDQKLS0tIGEvU291cmNlL0phdmFTY3JpcHRDb3JlL0FQSS9KU09iamVjdFJl Zi5jcHAKKysrIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0FQSS9KU09iamVjdFJlZi5jcHAKQEAg LTMxLDYgKzMxLDcgQEAKICNpbmNsdWRlICJBUElDYXN0LmgiCiAjaW5jbHVkZSAiQ29kZUJsb2Nr LmgiCiAjaW5jbHVkZSAiRGF0ZUNvbnN0cnVjdG9yLmgiCisjaW5jbHVkZSAiRGF0ZUluc3RhbmNl LmgiCiAjaW5jbHVkZSAiRXJyb3JDb25zdHJ1Y3Rvci5oIgogI2luY2x1ZGUgIkZ1bmN0aW9uQ29u c3RydWN0b3IuaCIKICNpbmNsdWRlICJJZGVudGlmaWVyLmgiCkBAIC0yMTQsNyArMjE1LDcgQEAg SlNPYmplY3RSZWYgSlNPYmplY3RNYWtlUmVnRXhwKEpTQ29udGV4dFJlZiBjdHgsIHNpemVfdCBh 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