swaitsandClaude Opus 4.6
3102fc747a
Implement full SSD1306 OLED display support: - Splash screen on boot (1.5s) with project name, version, board - Dashboard showing radio state, config, counters, RSSI/SNR - RSSI history sparkline (64-sample ring buffer, 2px-wide bars) - DisplayOn/DisplayOff host commands routed via dedicated channel - Pure render functions against generic DrawTarget (no hardware coupling) - Display on/off control bypasses radio task entirely Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
78 lines
3.3 KiB
Rust
78 lines
3.3 KiB
Rust
use super::*;
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// Note(Lokathor): This is the neat part!!
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unsafe impl<T: ZeroableInOption> Zeroable for Option<T> {}
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/// Trait for types which are [Zeroable](Zeroable) when wrapped in
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/// [Option](core::option::Option).
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///
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/// ## Safety
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///
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/// * `Option<YourType>` must uphold the same invariants as
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/// [Zeroable](Zeroable).
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pub unsafe trait ZeroableInOption: Sized {}
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unsafe impl ZeroableInOption for NonZeroI8 {}
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unsafe impl ZeroableInOption for NonZeroI16 {}
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unsafe impl ZeroableInOption for NonZeroI32 {}
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unsafe impl ZeroableInOption for NonZeroI64 {}
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unsafe impl ZeroableInOption for NonZeroI128 {}
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unsafe impl ZeroableInOption for NonZeroIsize {}
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unsafe impl ZeroableInOption for NonZeroU8 {}
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unsafe impl ZeroableInOption for NonZeroU16 {}
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unsafe impl ZeroableInOption for NonZeroU32 {}
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unsafe impl ZeroableInOption for NonZeroU64 {}
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unsafe impl ZeroableInOption for NonZeroU128 {}
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unsafe impl ZeroableInOption for NonZeroUsize {}
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// Note: this does not create NULL vtable because we get `None` anyway.
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unsafe impl<T: ?Sized> ZeroableInOption for NonNull<T> {}
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unsafe impl<T: ?Sized> ZeroableInOption for &'_ T {}
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unsafe impl<T: ?Sized> ZeroableInOption for &'_ mut T {}
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#[cfg(feature = "extern_crate_alloc")]
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#[cfg_attr(feature = "nightly_docs", doc(cfg(feature = "extern_crate_alloc")))]
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unsafe impl<T: ?Sized> ZeroableInOption for alloc::boxed::Box<T> {}
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#[cfg(feature = "zeroable_unwind_fn")]
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macro_rules! impl_for_unwind_fn {
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($($ArgTy:ident),* $(,)?) => {
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for extern "C-unwind" fn($($ArgTy,)*) -> R {}
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for unsafe extern "C-unwind" fn($($ArgTy,)*) -> R {}
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for extern "system-unwind" fn($($ArgTy,)*) -> R {}
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for unsafe extern "system-unwind" fn($($ArgTy,)*) -> R {}
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};
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}
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macro_rules! impl_for_fn {
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($($ArgTy:ident),* $(,)?) => {
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for fn($($ArgTy,)*) -> R {}
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for unsafe fn($($ArgTy,)*) -> R {}
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for extern "C" fn($($ArgTy,)*) -> R {}
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for unsafe extern "C" fn($($ArgTy,)*) -> R {}
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for extern "system" fn($($ArgTy,)*) -> R {}
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for unsafe extern "system" fn($($ArgTy,)*) -> R {}
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#[cfg(all(target_os="windows", target_arch = "x86"))]
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for extern "stdcall" fn($($ArgTy,)*) -> R {}
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#[cfg(all(target_os="windows", target_arch = "x86"))]
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unsafe impl<$($ArgTy,)* R> ZeroableInOption for unsafe extern "stdcall" fn($($ArgTy,)*) -> R {}
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#[cfg(feature = "zeroable_unwind_fn")]
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impl_for_unwind_fn!($($ArgTy),*);
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};
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}
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impl_for_fn!();
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impl_for_fn!(A);
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impl_for_fn!(A, B);
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impl_for_fn!(A, B, C);
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impl_for_fn!(A, B, C, D);
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impl_for_fn!(A, B, C, D, E);
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impl_for_fn!(A, B, C, D, E, F);
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impl_for_fn!(A, B, C, D, E, F, G);
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impl_for_fn!(A, B, C, D, E, F, G, H);
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impl_for_fn!(A, B, C, D, E, F, G, H, I);
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impl_for_fn!(A, B, C, D, E, F, G, H, I, J);
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impl_for_fn!(A, B, C, D, E, F, G, H, I, J, K);
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impl_for_fn!(A, B, C, D, E, F, G, H, I, J, K, L);
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impl_for_fn!(A, B, C, D, E, F, G, H, I, J, K, L, M);
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