Struct ReflectSub 

pub struct ReflectSub {
    pub sub: fn(Box<dyn PartialReflect>, Box<dyn PartialReflect>) -> Result<Box<dyn Reflect>, (Box<dyn PartialReflect>, Box<dyn PartialReflect>)>,
}

A struct used to perform subtraction on reflected values.

A ReflectSub for type T can be obtained via FromType::from_type.

Fields

sub: fn(Box<dyn PartialReflect>, Box<dyn PartialReflect>) -> Result<Box<dyn Reflect>, (Box<dyn PartialReflect>, Box<dyn PartialReflect>)>

Function pointer implementing ReflectSub::sub().

Implementations

impl ReflectSub

pub fn sub( &self, a: Box<dyn PartialReflect>, b: Box<dyn PartialReflect>, ) -> Result<Box<dyn Reflect>, (Box<dyn PartialReflect>, Box<dyn PartialReflect>)>

Subtracts two reflected values, returning the result as a new reflected value.

Errors

Returns Err((a, b)) if the types are incompatible.

Trait Implementations

impl Clone for ReflectSub

fn clone(&self) -> ReflectSub

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> FromType<T> for ReflectSub

where T: Reflect + Sub, <T as Sub>::Output: Reflect,

fn from_type() -> ReflectSub

Creates an instance of Self for type T.

fn insert_dependencies(_type_registration: &mut TypeRegistration)

Inserts TypeData dependencies of this TypeData. This is especially useful for trait TypeData that has a supertrait (ex: A: B). When the TypeData for A is inserted, the B TypeData will also be inserted.