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Everywhere: Switch from (void) to [[maybe_unused]] (#4473)
Problem: - `(void)` simply casts the expression to void. This is understood to indicate that it is ignored, but this is really a compiler trick to get the compiler to not generate a warning. Solution: - Use the `[[maybe_unused]]` attribute to indicate the value is unused. Note: - Functions taking a `(void)` argument list have also been changed to `()` because this is not needed and shows up in the same grep command.
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4421d98e30
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103 changed files with 219 additions and 362 deletions
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@ -48,10 +48,9 @@ namespace Web::DOM {
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// FIXME: This shouldn't be here, as retargeting is not only used by the event dispatcher.
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// When moving this function, it needs to be generalized. https://dom.spec.whatwg.org/#retarget
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static EventTarget* retarget(EventTarget* left, EventTarget* right)
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static EventTarget* retarget(EventTarget* left, [[maybe_unused]] EventTarget* right)
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{
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// FIXME
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UNUSED_PARAM(right);
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for (;;) {
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if (!is<Node>(left))
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return left;
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@ -110,7 +109,7 @@ bool EventDispatcher::inner_invoke(Event& event, Vector<EventTarget::EventListen
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auto* this_value = Bindings::wrap(global, *event.current_target());
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auto* wrapped_event = Bindings::wrap(global, event);
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auto& vm = global.vm();
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(void)vm.call(listener.listener->function(), this_value, wrapped_event);
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[[maybe_unused]] auto rc = vm.call(listener.listener->function(), this_value, wrapped_event);
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if (vm.exception()) {
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vm.clear_exception();
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// FIXME: Set legacyOutputDidListenersThrowFlag if given. (Only used by IndexedDB currently)
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@ -98,7 +98,7 @@ void Window::timer_did_fire(Badge<Timer>, Timer& timer)
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m_timers.remove(timer.id());
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}
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(void)vm.call(timer.callback(), wrapper());
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[[maybe_unused]] auto rc = vm.call(timer.callback(), wrapper());
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if (vm.exception())
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vm.clear_exception();
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}
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@ -132,7 +132,7 @@ i32 Window::request_animation_frame(JS::Function& callback)
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auto& function = const_cast<JS::Function&>(static_cast<const JS::Function&>(*handle.cell()));
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auto& vm = function.vm();
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fake_timestamp += 10;
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(void)vm.call(function, {}, JS::Value(fake_timestamp));
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[[maybe_unused]] auto rc = vm.call(function, {}, JS::Value(fake_timestamp));
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if (vm.exception())
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vm.clear_exception();
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GUI::DisplayLink::unregister_callback(link_id);
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