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* CRA review qml/jsruntimeFabian Kosmale2025-09-161-0/+1
| | | | | | | | | | | | | | | | | | This relies heavily on the documented fact that we only support trusted QML/JS content, meaning most files are only significant, not critical. This also extends to the handling of qmlc files (as in compilationunitmapper), as we store them in a user owned, non-shared cache directory – so any vulnerability there would already mean that an attacker has write-priviledges on user data. An exception is ArrayBuffer, which can be used with arbitrary user data, and should create a valid QBA. Fixes: QTBUG-136970 Pick-to: 6.10 6.9 6.8 QUIP: 23 Change-Id: I22033fe6ab4acf8362a8183e25b92331d45cb32c Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* QtQml: Properly null-check module exports when iteratingUlf Hermann2025-08-121-2/+2
| | | | | | | | | | | | | We construct the iterator from the exports of the module in all current code paths. Therefore, this case can't happen in the current code. Still, the fact that we have a branch that throws a reference error there tells us that it's intended to work on other collections of names, too. Let's complete the check and also check for nullptr since resolveExport can indeed return that. Coverity-Id: 486706 Change-Id: Ieaf3996e76265e9e6ef59c2168699e47e41e8ff5 Reviewed-by: Olivier De Cannière <olivier.decanniere@qt.io>
* Harden namespacingTim Blechmann2025-08-081-1/+2
| | | | | | | | | | | | | | | When using namespaced Qt, we need to prevent symbol clashes with symbols of the same name. * namespace some publicly visible classes * hide classes in implementation in an anonymous namespace * rename read/write to readValue/writeValue to avoid name clash with c functions. Task-number: QTBUG-138543 Pick-to: 6.10 Change-Id: Ica77462c1f81f1e01cc60477e5b56ecfe3c1abb4 Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* QtQml: Make base CU a member of ExecutableCompilationUnitUlf Hermann2024-01-101-3/+3
| | | | | | | | | | | | We want to re-use the base compilation unit across engines. For that to work it cannot be a slice of the engine-specific ExecutableCompilationUnit. Since CompiledData::CompilationUnit is refcounted on its own now, make it unmovable. Change-Id: I8418c9754d7a07e5210c1e7a7fc69355e1d57807 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QML Debugger: Don't crash when looking up values from imported modulesUlf Hermann2023-10-241-3/+6
| | | | | | | | | | We cannot look up the imports from other modules because those are stored in the CU. But we can avoid the crash. Pick-to: 6.6 6.5 6.2 5.15 Fixes: QTBUG-117479 Change-Id: Ib5660c94dfb7ed20baedf7f71b2f175e6be042b1 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Move ScopedStackFrame into qv4stackframe_p.hUlf Hermann2023-05-171-4/+5
| | | | | | | | | | | This is where it belongs. We need to apply some tricks to avoid cyclic includes, but that's better than what we have so far. Also, sort and clean up the includes in the affected files. Change-Id: Ia7a957d06c0ca284045d831417740c3f9920bc92 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* Port from container::count() and length() to size()Marc Mutz2022-10-071-1/+1
| | | | | | | | | | | | | | | | | | | | This is a semantic patch using ClangTidyTransformator as in qtbase/df9d882d41b741fef7c5beeddb0abe9d904443d8: auto QtContainerClass = anyOf( expr(hasType(cxxRecordDecl(isSameOrDerivedFrom(hasAnyName(classes))))).bind(o), expr(hasType(namedDecl(hasAnyName(<classes>)))).bind(o)); makeRule(cxxMemberCallExpr(on(QtContainerClass), callee(cxxMethodDecl(hasAnyName({"count", "length"), parameterCountIs(0))))), changeTo(cat(access(o, cat("size"), "()"))), cat("use 'size()' instead of 'count()/length()'")) a.k.a qt-port-to-std-compatible-api with config Scope: 'Container', with the extended set of container classes recognized. Change-Id: Idb1f75dfe2323bd1d9e8b4d58d54f1b4b80c7ed7 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Use SPDX license identifiersLucie Gérard2022-06-111-38/+2
| | | | | | | | | | | | Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Pick-to: 6.4 Task-number: QTBUG-67283 Change-Id: I63563bbeb6f60f89d2c99660400dca7fab78a294 Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
* Optimize stack frame setup for AOT compiled functionsUlf Hermann2021-03-231-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When called via the metaobject system, parameters and return values are passed as void*, with accompanying type information in the form of QMetaType. The same format is expected when calling an AOT compiled function. Previously, we would first convert all the parameters to QV4::Value, just to convert them back the moment we notice that there is an AOT compiled function. This is wasteful. This change provides a second call infrastructure that accepts void* and QMetaType as parameter and return value format, and passes them as-is all the way to any AOT compiled functions. If there is no AOT compiled function, the conversion is done when detecting this, rather than when initiating the call. This also passes the information "ignore return value" all the way down to the actual function call. If the caller is not interested in the return value, we don't have to marshal it back at all. For now, we only add the extra "callWithMetaTypes" vtable entry to ArrowFunction. However, other callables could also receive variants optimized for calling with void*/int rather than V4 values. This required changing the way how function arguments are stored in the property cache. We squeeze the return type into QQmlPropertyCacheMethodArguments now, and we use QMetaType instead of integers. In turn, we remove some unused bits. Change-Id: I946e603e623d9d985c54d3a15f6f4b7c7b7d8c60 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Split CompiledData::CompilationUnit in twoUlf Hermann2019-05-161-2/+2
| | | | | | | | We need a CompilationUnit that only holds the data needed for compilation and another one that is executable by the runtime. Change-Id: I704d859ba028576a18460f5e3a59f210f64535d3 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Expose let/const variables from imported JS scriptsJüri Valdmann2018-11-021-16/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows QML to access let/const variables defined in JS files. Detailed changes: - The recently added ContextType::ScriptImportedByQML is changed to avoid creating Push/PopScriptContext instructions, similar to ContextType::ESModule. - QV4::Module is changed to also work with CompilationUnits which are not ESModules. In this case QV4::Module will behave as if all lexically scoped variables were exported. - CompilationUnit is changed to support instantiating and evaluating QV4::Modules for non-ESModules as well. - QQmlTypeLoader is changed to always create QV4::Modules for evaluating scripts. For the non-ESModule case, the QV4::Module is evaluated inside a QV4::QmlContext, as before. - A pointer to the QV4::Module is added to QV4::QQmlContextWrapper, and used in virtualGet to access the let/const variables in the CallContext. Access is read-only. Fixes: QTBUG-69408 Change-Id: I6f299363fdf5e1c5a4a0f1d9e655b4dc5112dd00 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Make Object::getOwnProperty() constLars Knoll2018-09-231-1/+1
| | | | | | | | Object::getOwnProperty never modifies the object, so make it a const member function. Change-Id: I175bb45d61a66a1d9f577c087129562d44d62e17 Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* Fix ownKey iteration over Proxy objectsLars Knoll2018-09-091-1/+2
| | | | | Change-Id: I045a4844c06df9232cc8b04485ab0a39bb990e3f Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Fix handling of uninitialized exports when iterating module namespace objectsSimon Hausmann2018-08-291-2/+7
| | | | | | | | | | | | | | | | | | | | We must throw reference errors when the iteration reaches an uninitialized export. As with other module namespace cases we don't know at the call site that we're dealing with this special object, we must throw the reference error inside the iterator. That brings in the additional complexity that we can use the iterator to get a list of all names (should not throw) as well as to retrieve the values (throw on uninit). We make the distinction inside the ::next() function based on whether a Property pointer was provided, which requires slightly different variants inside the ObjectIterator that uses the internal iterator. On the upside this avoids value copying when they would be unused otherwise. Change-Id: Iac45d0ed39bea861ea92db875821225c0feb9391 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Fix dead temporal zone checking in module namespacesSimon Hausmann2018-08-291-2/+22
| | | | | | | | | | | | | | | Accessing uninitialized imports through the module namespace object should throw a reference error. Unfortunately we can't do this check on the caller side of the namespace object get, as we have no idea that we're talking to one. Therefore we must throw in the vtable methods. When checking via Reflect.has(), the properties should be reported as existing. This means providing a virtual hasProperty() in the module as well as changing Reflect::method_has to use the vtable method instead of doing a get (which would throw). Change-Id: Ic0ec51de3832c6a67044fc8f689ac534f349c1b6 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Implement the dead temporal zoneSimon Hausmann2018-08-281-1/+4
| | | | | | | | | | | | | | With const and let it is possible to access the declared member before initialization. This is expected to throw a type reference error at run-time. We initialize such variables with the empty value when entering their scope and check upon access for that. For locals we place the lexically scoped variables at the end. For register allocated lexical variables we group them into one batch and remember the index/size. Change-Id: Icb493ee0de0525bb682e1bc58981a4dfd33f750e Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Fix attributes returned by getOwnPropertyDescriptor on module namespace objectsSimon Hausmann2018-08-151-1/+1
| | | | | Change-Id: Ib07d1a215492640e82f4f4791ba714688508f3db Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Fix order of own property names of module namespace objectsSimon Hausmann2018-08-151-10/+12
| | | | | | | They must be sorted, no duplicates and only one default entry at most. Change-Id: Ia9c0e54a761ce7cbfebb837330bf3769d505eb3b Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Fix explicit export of imported variablesSimon Hausmann2018-08-141-0/+19
| | | | | | | | | | | | | | | | | | | | Instead of using a re-export, it's also possible to write import { foo } from "./bar.js" and then export it again export { foo } Typically exported variables are referenced from the locals, but since we don't add imports to the locals, we need another way of locating them. This patch uses the index space after the locals in the internal class for imports, so that after we've identifier the export in the local export entry table, we can use the local name to search in the internal class and find imports past the locals. Change-Id: I58ab79ad3df1bbc1b972f0a2771d9ca1268de27b Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Implement initial support for import namespacesSimon Hausmann2018-08-141-0/+118
| | | | | | | | | | | | | The import via import * as foo from "./bar.js" allows accessing all exports via the special namespace object. This is conceptually quite similar to the existing import of .js files in QtQuick. Change-Id: Ia6d79342f0884a89dfe4dc07316570ca7789cac0 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Add initial basic support for ES6 modulesSimon Hausmann2018-08-091-0/+69
The entry point from the parsing perspective into modules is not QV4::Script but QV4::ExecutionEngine::compileModule. For convenience, the ESModule AST node gets a body, which is the statement list connected between the ModuleItemList items that are not import/export declarations. The QV4::Module allocates a call context where the exported variables are stored as named locals. This will also become the module namespace object. The imports in turn is an array of value pointers that point into the locals array of the context of the imported modules. The default module loading in ExecutionEngine assumes the accessibility of module urls via QFile (so local file system or resource). This is what qmljs also uses and QJSEngine as well via public API in the future. The test runner compiles the modules manually and injects them, because they need to be compiled together with the test harness code. The QML type loader will the mechanism for injection in the future for module imports from .qml files. Change-Id: I93be9cfe54c651fdbd08c5e1d22d58f47284e54f Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
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