Trait MaybeError 

pub trait MaybeError {
    // Required methods
    fn from_err(err: Box<dyn Error + Send + Sync>) -> Self;
    fn err(&self) -> Option<Box<dyn Error + Send + Sync>>;

    // Provided methods
    fn is_ok(&self) -> bool { ... }
    fn is_err(&self) -> bool { ... }
}

Required Methods

fn from_err(err: Box<dyn Error + Send + Sync>) -> Self

Construct an instance from an error.

fn err(&self) -> Option<Box<dyn Error + Send + Sync>>

Construct into an error instance.

Provided Methods

fn is_ok(&self) -> bool

Check if the current instance represents a success.

fn is_err(&self) -> bool

Check if the current instance represents an error.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<R> MaybeError for Annotated<R>

where R: for<'de> Deserialize<'de> + Serialize,