Struct AnyVarHookArgs

pub struct AnyVarHookArgs<'a> { /* private fields */ }

Arguments for AnyVar::hook_any.

Implementations

impl<'a> AnyVarHookArgs<'a>

pub fn new( value: &'a dyn AnyVarValue, update: bool, tags: &'a [Box<dyn AnyVarValue>], ) -> Self

New from updated value and custom tag.

pub fn value(&self) -> &'a dyn AnyVarValue

Reference the updated value.

pub fn update(&self) -> bool

If update was explicitly requested.

Note that bindings/mappings propagate this update request.

pub fn value_type(&self) -> TypeId

Value type ID.

pub fn tags(&self) -> &[Box<dyn AnyVarValue>]

Custom tag objects.

pub fn tags_vec(&self) -> Vec<Box<dyn AnyVarValue>>

Clone the custom tag objects set by the code that updated the value.

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

Reference the value, if it is of type T.

pub fn downcast_tags<T: VarValue>(&self) -> impl Iterator<Item = &T> + '_

Reference all custom tag values of type T.

pub fn as_strong<T: VarValue>(&self) -> Option<VarHookArgs<'_, T>>

Try cast to strongly typed args.