Struct Value 

pub struct Value { /* private fields */ }

A cloneable type-erased Send + Sync value.

Cordis TypeScript stores arbitrary JavaScript values. This wrapper is the Rust equivalent: callers recover the concrete type through Value::downcast.

Implementations

impl Value

pub fn new<T>(value: T) -> Self

where T: Any + Send + Sync,

Erase a concrete value.

pub fn from_arc<T>(value: Arc<T>) -> Self

where T: Any + Send + Sync,

Erase an existing Arc without adding a second Arc layer.

pub const fn type_name(&self) -> &'static str

Return the stored concrete type’s diagnostic name.

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

Whether this value stores T.

pub fn downcast<T>(&self) -> Result<Arc<T>>

where T: Any + Send + Sync,

Recover an Arc<T> from the erased value.

pub fn as_any(&self) -> &(dyn Any + Send + Sync)

Borrow the underlying Any trait object.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl Default for Value

fn default() -> Self

Returns the “default value” for a type.

impl From<Value> for LogArg

fn from(value: Value) -> Self

Converts to this type from the input type.