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VSTMidiEventList: Silence clang-analyzer OOB read warning

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reuk 2025-09-09 13:20:20 +01:00
parent 641497918c
commit 0788df388b
1 changed files with 7 additions and 5 deletions
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12
modules/juce_audio_processors/format_types/juce_VSTMidiEventList.h
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@ -53,12 +53,14 @@ class VSTMidiEventList
static auto& getEvent (Events& events, int index)
{
using EventType = decltype (&*events.events);
static constexpr auto offset = offsetof (Vst2::VstEvents, events);
// We static cast rather than using a direct array index here to circumvent
// UB sanitizer's bounds-checks. The original struct is supposed to contain
// a variable-length array, but the declaration uses a size of "2" for this
// member.
return static_cast<EventType> (events.events)[index];
auto* bytes = reinterpret_cast<std::conditional_t<std::is_const_v<std::remove_pointer_t<EventType>>,
const std::byte*,
std::byte*>> (&events);
auto* array = reinterpret_cast<EventType> (bytes + offset);
return array[index];
}
Vst2::VstEvent* const& getEvent (int index) const { return getEvent (*events, index); }