Enum ResourceState 

pub enum ResourceState<T> {
    Loading,
    Ready(T),
    Error(String),
}

Three-state machine the Resource cycles through. Clone so reads inside effects can take owned copies without borrowing the underlying signal slot.

Variants

Loading

Worker hasn’t returned yet — neither value nor error available.

Ready(T)

Worker returned Ok(v) — v is the fetched value.

Error(String)

Worker returned Err(msg). The string is the user-readable reason. (Plain String rather than a generic E keeps the type parameter count low and matches the common pattern of stringifying upstream errors with .map_err(|e| e.to_string()).)

Implementations

impl<T> ResourceState<T>

pub fn is_loading(&self) -> bool

pub fn is_ready(&self) -> bool

pub fn is_error(&self) -> bool

Trait Implementations

impl<T: Clone> Clone for ResourceState<T>

fn clone(&self) -> ResourceState<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for ResourceState<T>

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

Formats the value using the given formatter.

impl<T: Eq> Eq for ResourceState<T>

impl<T: PartialEq> PartialEq for ResourceState<T>

fn eq(&self, other: &ResourceState<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> StructuralPartialEq for ResourceState<T>