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unsafe is unsafe

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Corwin 2023-04-03 02:20:13 +01:00
parent 82b68fc335
commit d8f0d78d4b
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1 changed files with 28 additions and 13 deletions
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41
agb/src/display/object/managed.rs
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@ -357,75 +357,90 @@ impl Object<'_> {
self self
} }
fn object(&mut self) -> &mut UnmanagedObject { /// Safety:
/// Only have *ONE* of these at a time, do not call any functions that modify the slot map while having this.
unsafe fn object(&mut self) -> &mut UnmanagedObject {
unsafe { &mut *self.store.get_object(self.me).object.get() } unsafe { &mut *self.store.get_object(self.me).object.get() }
} }
fn object_shared(&self) -> &UnmanagedObject { /// Safety:
/// Don't have a mutable one of these while having one of these, do not call any functions that modify the slot map while having this.
unsafe fn object_shared(&self) -> &UnmanagedObject {
unsafe { &*self.store.get_object(self.me).object.get() } unsafe { &*self.store.get_object(self.me).object.get() }
} }
#[must_use] #[must_use]
pub fn is_visible(&self) -> bool { pub fn is_visible(&self) -> bool {
self.object_shared().is_visible() // safety: only have one of these, doesn't modify slotmap
unsafe { self.object_shared() }.is_visible()
} }
pub fn show(&mut self) -> &mut Self { pub fn show(&mut self) -> &mut Self {
self.object().show(); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().show() };
self self
} }
pub fn show_affine(&mut self, affine_mode: AffineMode) -> &mut Self { pub fn show_affine(&mut self, affine_mode: AffineMode) -> &mut Self {
self.object().show_affine(affine_mode); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().show_affine(affine_mode) };
self self
} }
pub fn set_hflip(&mut self, flip: bool) -> &mut Self { pub fn set_hflip(&mut self, flip: bool) -> &mut Self {
self.object().set_hflip(flip); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().set_hflip(flip) };
self self
} }
pub fn set_vflip(&mut self, flip: bool) -> &mut Self { pub fn set_vflip(&mut self, flip: bool) -> &mut Self {
self.object().set_vflip(flip); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().set_vflip(flip) };
self self
} }
pub fn set_x(&mut self, x: u16) -> &mut Self { pub fn set_x(&mut self, x: u16) -> &mut Self {
self.object().set_x(x); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().set_x(x) };
self self
} }
pub fn set_priority(&mut self, priority: Priority) -> &mut Self { pub fn set_priority(&mut self, priority: Priority) -> &mut Self {
self.object().set_priority(priority); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().set_priority(priority) };
self self
} }
pub fn hide(&mut self) -> &mut Self { pub fn hide(&mut self) -> &mut Self {
self.object().hide(); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().hide() };
self self
} }
pub fn set_y(&mut self, y: u16) -> &mut Self { pub fn set_y(&mut self, y: u16) -> &mut Self {
self.object().set_y(y); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().set_y(y) };
self self
} }
pub fn set_position(&mut self, position: Vector2D<i32>) -> &mut Self { pub fn set_position(&mut self, position: Vector2D<i32>) -> &mut Self {
self.object().set_position(position); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().set_position(position) };
self self
} }
pub fn set_sprite(&mut self, sprite: SpriteVram) -> &mut Self { pub fn set_sprite(&mut self, sprite: SpriteVram) -> &mut Self {
self.object().set_sprite(sprite); // safety: only have one of these, doesn't modify slotmap
unsafe { self.object().set_sprite(sprite) };
self self
} }