pub trait Fact: Debug + Downcast + DynClone + Send + Sync + 'static {
    // Required methods
    fn to_typed_fact(&self) -> Result<Cow<'_, TypedFact>, Error>;
    fn same_as(&self, _other: &(dyn Fact + 'static)) -> bool;
    fn compatible_with(&self, _other: &(dyn Fact + 'static)) -> bool;
    fn datum_type(&self) -> Option<DatumType>;

    // Provided method
    fn matches(
        &self,
        t: &Tensor,
        symbols: Option<&SymbolValues>
    ) -> Result<bool, Error> { ... }
}
Expand description

Type information about a tensor: shape, and element type, in various state of determination.

Required Methods§

fn to_typed_fact(&self) -> Result<Cow<'_, TypedFact>, Error>

fn same_as(&self, _other: &(dyn Fact + 'static)) -> bool

fn compatible_with(&self, _other: &(dyn Fact + 'static)) -> bool

Ensure that self is same type as another fact or a subtype

fn datum_type(&self) -> Option<DatumType>

Provided Methods§

fn matches( &self, t: &Tensor, symbols: Option<&SymbolValues> ) -> Result<bool, Error>

Implementations§

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impl dyn Fact + 'static

pub fn is<__T>(&self) -> boolwhere __T: Fact,

Returns true if the trait object wraps an object of type __T.

pub fn downcast<__T>( self: Box<dyn Fact + 'static, Global> ) -> Result<Box<__T, Global>, Box<dyn Fact + 'static, Global>>where __T: Fact,

Returns a boxed object from a boxed trait object if the underlying object is of type __T. Returns the original boxed trait if it isn’t.

pub fn downcast_rc<__T>( self: Rc<dyn Fact + 'static> ) -> Result<Rc<__T>, Rc<dyn Fact + 'static>>where __T: Fact,

Returns an Rc-ed object from an Rc-ed trait object if the underlying object is of type __T. Returns the original Rc-ed trait if it isn’t.

pub fn downcast_ref<__T>(&self) -> Option<&__T>where __T: Fact,

Returns a reference to the object within the trait object if it is of type __T, or None if it isn’t.

pub fn downcast_mut<__T>(&mut self) -> Option<&mut __T>where __T: Fact,

Returns a mutable reference to the object within the trait object if it is of type __T, or None if it isn’t.

Trait Implementations§

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impl<'clone> Clone for Box<dyn Fact + 'clone, Global>

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fn clone(&self) -> Box<dyn Fact + 'clone, Global>

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl<'clone> Clone for Box<dyn Fact + Send + 'clone, Global>

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fn clone(&self) -> Box<dyn Fact + Send + 'clone, Global>

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl<'clone> Clone for Box<dyn Fact + Sync + 'clone, Global>

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fn clone(&self) -> Box<dyn Fact + Sync + 'clone, Global>

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl<'clone> Clone for Box<dyn Fact + Sync + Send + 'clone, Global>

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fn clone(&self) -> Box<dyn Fact + Sync + Send + 'clone, Global>

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more

Implementors§