Struct BoxAnyVarValue 

pub struct BoxAnyVarValue(/* private fields */);

Small box for AnyVarValue values.

Implementations

impl BoxAnyVarValue

pub fn new(value: impl AnyVarValue) -> Self

Box value.

pub fn downcast<T: VarValue>(self) -> Result<T, Self>

Downcast to value.

pub fn type_id(&self) -> TypeId

Gets the TypeId of the boxed value.

Note that if you call Any::type_id directly on this type you will get the BoxAnyVarValue type id, not the id of the actual value.

pub fn detailed_debug(&self) -> impl Debug

Alternate formatter that writes detailed debug info about the box and value type name.

The std::fmt::Debug implementation simply redirects to the value debug, this wrapper provides more info.

Methods from Deref<Target = dyn AnyVarValue>

pub fn downcast_ref<T: VarValue>(&self) -> Option<&T>

Returns some reference to the inner value if it is of type T, or None if it isn’t.

pub fn downcast_mut<T: VarValue>(&mut self) -> Option<&mut T>

Returns some mutable reference to the inner value if it is of type T, or None if it isn’t.

pub fn is<T: VarValue>(&self) -> bool

Returns true if the inner type is the same as T.

Trait Implementations

impl Clone for BoxAnyVarValue

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BoxAnyVarValue

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

Formats the value using the given formatter.

impl Deref for BoxAnyVarValue

type Target = dyn AnyVarValue

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for BoxAnyVarValue

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.