Struct bevy::math::Rect

#[repr(C)]
pub struct Rect { pub min: Vec2, pub max: Vec2, }
Expand description

A rectangle defined by two opposite corners.

The rectangle is axis aligned, and defined by its minimum and maximum coordinates, stored in Rect::min and Rect::max, respectively. The minimum/maximum invariant must be upheld by the user when directly assigning the fields, otherwise some methods produce invalid results. It is generally recommended to use one of the constructor methods instead, which will ensure this invariant is met, unless you already have the minimum and maximum corners.

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§min: Vec2

The minimum corner point of the rect.

§max: Vec2

The maximum corner point of the rect.

Implementations§

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impl Rect

pub const EMPTY: Rect = _

An empty Rect, represented by maximum and minimum corner points at Vec2::NEG_INFINITY and Vec2::INFINITY, respectively. This is so the Rect has a infinitely negative size. This is useful, because when taking a union B of a non-empty Rect A and this empty Rect, B will simply equal A.

pub fn new(x0: f32, y0: f32, x1: f32, y1: f32) -> Rect

Create a new rectangle from two corner points.

The two points do not need to be the minimum and/or maximum corners. They only need to be two opposite corners.

§Examples
let r = Rect::new(0., 4., 10., 6.); // w=10 h=2
let r = Rect::new(2., 3., 5., -1.); // w=3 h=4

pub fn from_corners(p0: Vec2, p1: Vec2) -> Rect

Create a new rectangle from two corner points.

The two points do not need to be the minimum and/or maximum corners. They only need to be two opposite corners.

§Examples
// Unit rect from [0,0] to [1,1]
let r = Rect::from_corners(Vec2::ZERO, Vec2::ONE); // w=1 h=1
// Same; the points do not need to be ordered
let r = Rect::from_corners(Vec2::ONE, Vec2::ZERO); // w=1 h=1

pub fn from_center_size(origin: Vec2, size: Vec2) -> Rect

Create a new rectangle from its center and size.

§Panics

This method panics if any of the components of the size is negative.

§Examples
let r = Rect::from_center_size(Vec2::ZERO, Vec2::ONE); // w=1 h=1
assert!(r.min.abs_diff_eq(Vec2::splat(-0.5), 1e-5));
assert!(r.max.abs_diff_eq(Vec2::splat(0.5), 1e-5));

pub fn from_center_half_size(origin: Vec2, half_size: Vec2) -> Rect

Create a new rectangle from its center and half-size.

§Panics

This method panics if any of the components of the half-size is negative.

§Examples
let r = Rect::from_center_half_size(Vec2::ZERO, Vec2::ONE); // w=2 h=2
assert!(r.min.abs_diff_eq(Vec2::splat(-1.), 1e-5));
assert!(r.max.abs_diff_eq(Vec2::splat(1.), 1e-5));

pub fn is_empty(&self) -> bool

Check if the rectangle is empty.

§Examples
let r = Rect::from_corners(Vec2::ZERO, Vec2::new(0., 1.)); // w=0 h=1
assert!(r.is_empty());

pub fn width(&self) -> f32

Rectangle width (max.x - min.x).

§Examples
let r = Rect::new(0., 0., 5., 1.); // w=5 h=1
assert!((r.width() - 5.).abs() <= 1e-5);

pub fn height(&self) -> f32

Rectangle height (max.y - min.y).

§Examples
let r = Rect::new(0., 0., 5., 1.); // w=5 h=1
assert!((r.height() - 1.).abs() <= 1e-5);

pub fn size(&self) -> Vec2

Rectangle size.

§Examples
let r = Rect::new(0., 0., 5., 1.); // w=5 h=1
assert!(r.size().abs_diff_eq(Vec2::new(5., 1.), 1e-5));

pub fn half_size(&self) -> Vec2

Rectangle half-size.

§Examples
let r = Rect::new(0., 0., 5., 1.); // w=5 h=1
assert!(r.half_size().abs_diff_eq(Vec2::new(2.5, 0.5), 1e-5));

pub fn center(&self) -> Vec2

The center point of the rectangle.

§Examples
let r = Rect::new(0., 0., 5., 1.); // w=5 h=1
assert!(r.center().abs_diff_eq(Vec2::new(2.5, 0.5), 1e-5));

pub fn contains(&self, point: Vec2) -> bool

Check if a point lies within this rectangle, inclusive of its edges.

§Examples
let r = Rect::new(0., 0., 5., 1.); // w=5 h=1
assert!(r.contains(r.center()));
assert!(r.contains(r.min));
assert!(r.contains(r.max));

pub fn union(&self, other: Rect) -> Rect

Build a new rectangle formed of the union of this rectangle and another rectangle.

The union is the smallest rectangle enclosing both rectangles.

§Examples
let r1 = Rect::new(0., 0., 5., 1.); // w=5 h=1
let r2 = Rect::new(1., -1., 3., 3.); // w=2 h=4
let r = r1.union(r2);
assert!(r.min.abs_diff_eq(Vec2::new(0., -1.), 1e-5));
assert!(r.max.abs_diff_eq(Vec2::new(5., 3.), 1e-5));

pub fn union_point(&self, other: Vec2) -> Rect

Build a new rectangle formed of the union of this rectangle and a point.

The union is the smallest rectangle enclosing both the rectangle and the point. If the point is already inside the rectangle, this method returns a copy of the rectangle.

§Examples
let r = Rect::new(0., 0., 5., 1.); // w=5 h=1
let u = r.union_point(Vec2::new(3., 6.));
assert!(u.min.abs_diff_eq(Vec2::ZERO, 1e-5));
assert!(u.max.abs_diff_eq(Vec2::new(5., 6.), 1e-5));

pub fn intersect(&self, other: Rect) -> Rect

Build a new rectangle formed of the intersection of this rectangle and another rectangle.

The intersection is the largest rectangle enclosed in both rectangles. If the intersection is empty, this method returns an empty rectangle (Rect::is_empty() returns true), but the actual values of Rect::min and Rect::max are implementation-dependent.

§Examples
let r1 = Rect::new(0., 0., 5., 1.); // w=5 h=1
let r2 = Rect::new(1., -1., 3., 3.); // w=2 h=4
let r = r1.intersect(r2);
assert!(r.min.abs_diff_eq(Vec2::new(1., 0.), 1e-5));
assert!(r.max.abs_diff_eq(Vec2::new(3., 1.), 1e-5));

pub fn inflate(&self, expansion: f32) -> Rect

Create a new rectangle by expanding it evenly on all sides.

A positive expansion value produces a larger rectangle, while a negative expansion value produces a smaller rectangle. If this would result in zero or negative width or height, Rect::EMPTY is returned instead.

§Examples
let r = Rect::new(0., 0., 5., 1.); // w=5 h=1
let r2 = r.inflate(3.); // w=11 h=7
assert!(r2.min.abs_diff_eq(Vec2::splat(-3.), 1e-5));
assert!(r2.max.abs_diff_eq(Vec2::new(8., 4.), 1e-5));

let r = Rect::new(0., -1., 6., 7.); // w=6 h=8
let r2 = r.inflate(-2.); // w=11 h=7
assert!(r2.min.abs_diff_eq(Vec2::new(2., 1.), 1e-5));
assert!(r2.max.abs_diff_eq(Vec2::new(4., 5.), 1e-5));

pub fn normalize(&self, other: Rect) -> Rect

Build a new rectangle from this one with its coordinates expressed relative to other in a normalized ([0..1] x [0..1]) coordinate system.

§Examples
let r = Rect::new(2., 3., 4., 6.);
let s = Rect::new(0., 0., 10., 10.);
let n = r.normalize(s);

assert_eq!(n.min.x, 0.2);
assert_eq!(n.min.y, 0.3);
assert_eq!(n.max.x, 0.4);
assert_eq!(n.max.y, 0.6);

pub fn as_irect(&self) -> IRect

Returns self as IRect (i32)

pub fn as_urect(&self) -> URect

Returns self as URect (u32)

Trait Implementations§

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impl Clone for Rect

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fn clone(&self) -> Rect

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Rect

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for Rect

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fn default() -> Rect

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for Rect

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fn deserialize<__D>( __deserializer: __D, ) -> Result<Rect, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl FromReflect for Rect
where Rect: Any + Send + Sync, Vec2: FromReflect + TypePath + RegisterForReflection,

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fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<Rect>

Constructs a concrete instance of Self from a reflected value.
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fn take_from_reflect( reflect: Box<dyn Reflect>, ) -> Result<Self, Box<dyn Reflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails. Read more
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impl GetTypeRegistration for Rect
where Rect: Any + Send + Sync, Vec2: FromReflect + TypePath + RegisterForReflection,

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fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.
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fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type. Read more
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impl PartialEq for Rect

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fn eq(&self, other: &Rect) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Reflect for Rect
where Rect: Any + Send + Sync, Vec2: FromReflect + TypePath + RegisterForReflection,

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fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value. Read more
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fn into_any(self: Box<Rect>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.
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fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.
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fn into_reflect(self: Box<Rect>) -> Box<dyn Reflect>

Casts this type to a boxed reflected value.
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fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a reflected value.
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fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable reflected value.
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fn clone_value(&self) -> Box<dyn Reflect>

Clones the value as a Reflect trait object. Read more
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fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value. Read more
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fn try_apply( &mut self, value: &(dyn Reflect + 'static), ) -> Result<(), ApplyError>

Tries to apply a reflected value to this value. Read more
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fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type. Read more
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fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type. Read more
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fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type. Read more
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fn reflect_owned(self: Box<Rect>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type. Read more
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fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>

Returns a “partial equality” comparison result. Read more
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fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Debug formatter for the value. Read more
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fn apply(&mut self, value: &(dyn Reflect + 'static))

Applies a reflected value to this value. Read more
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fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type). Read more
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fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value. Read more
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fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type. Read more
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impl Serialize for Rect

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Struct for Rect
where Rect: Any + Send + Sync, Vec2: FromReflect + TypePath + RegisterForReflection,

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fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field named name as a &dyn Reflect.
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fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field named name as a &mut dyn Reflect.
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fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field with index index as a &dyn Reflect.
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fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field with index index as a &mut dyn Reflect.
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fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.
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fn field_len(&self) -> usize

Returns the number of fields in the struct.
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fn iter_fields(&self) -> FieldIter<'_>

Returns an iterator over the values of the reflectable fields for this struct.
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fn clone_dynamic(&self) -> DynamicStruct

Clones the struct into a DynamicStruct.
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impl TypePath for Rect
where Rect: Any + Send + Sync,

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fn type_path() -> &'static str

Returns the fully qualified path of the underlying type. Read more
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fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type. Read more
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fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous. Read more
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fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous. Read more
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fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous. Read more
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impl Typed for Rect
where Rect: Any + Send + Sync, Vec2: FromReflect + TypePath + RegisterForReflection,

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fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.
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impl Copy for Rect

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impl StructuralPartialEq for Rect

Auto Trait Implementations§

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impl Freeze for Rect

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impl RefUnwindSafe for Rect

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impl Send for Rect

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impl Sync for Rect

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impl Unpin for Rect

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impl UnwindSafe for Rect

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where U: ShaderType, &'a T: for<'a> Into<U>,

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fn as_bind_group_shader_type(&self, _images: &RenderAssets<GpuImage>) -> U

Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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fn downcast(&self) -> &T

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impl<T> Downcast for T
where T: Any,

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Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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where T: Any + Send + Sync,

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Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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impl<T> FromWorld for T
where T: Default,

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fn from_world(_world: &mut World) -> T

Creates Self using data from the given World.
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where S: Struct,

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Returns a reference to the value of the field named name, downcast to T.
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Returns a mutable reference to the value of the field named name, downcast to T.
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Calls U::from(self).

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const ALIGN: usize = _

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