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LibJS: Mark classes and virtual functions final where possible

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These cases were found with GCC's `-Wsuggest-final-{types,methods}`
warnings, which catch calls that could have been devirtualized had we
declared the functions `final` in the source.

To reproduce, Link Time Optimization needs to be enabled. The easiest
way to achieve this is to set the `CMAKE_INTERPROCEDURAL_OPTIMIZATION`
cache variable to `ON`. The `.incbin` directive in LibCompress' Brotli
decompressor might needs to be changed to an absolute path for this to
work.

This commit also removes a pair of unused virtual functions.
This commit is contained in:
Daniel Bertalan 2023-08-13 12:53:46 +02:00 • committed by Andreas Kling
parent 72c9f56c66
commit 65232b6681
9 changed files with 17 additions and 20 deletions
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8
Userland/Libraries/LibJS/CyclicModule.h
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@ -27,8 +27,8 @@ class CyclicModule : public Module {
public:
// Note: Do not call these methods directly unless you are HostResolveImportedModule.
// Badges cannot be used because other hosts must be able to call this (and it is called recursively)
virtual ThrowCompletionOr<void> link(VM& vm) override;
virtual ThrowCompletionOr<Promise*> evaluate(VM& vm) override;
virtual ThrowCompletionOr<void> link(VM& vm) override final;
virtual ThrowCompletionOr<Promise*> evaluate(VM& vm) override final;
Vector<ModuleRequest> const& requested_modules() const { return m_requested_modules; }
@ -37,8 +37,8 @@ protected:
virtual void visit_edges(Cell::Visitor&) override;
virtual ThrowCompletionOr<u32> inner_module_linking(VM& vm, Vector<Module*>& stack, u32 index) override;
virtual ThrowCompletionOr<u32> inner_module_evaluation(VM& vm, Vector<Module*>& stack, u32 index) override;
virtual ThrowCompletionOr<u32> inner_module_linking(VM& vm, Vector<Module*>& stack, u32 index) override final;
virtual ThrowCompletionOr<u32> inner_module_evaluation(VM& vm, Vector<Module*>& stack, u32 index) override final;
virtual ThrowCompletionOr<void> initialize_environment(VM& vm);
virtual ThrowCompletionOr<void> execute_module(VM& vm, GCPtr<PromiseCapability> capability = {});