Trait OkOrErr 

pub trait OkOrErr<T> {
    // Required methods
    fn or_err(self, et: ErrorType, context: &'static str) -> Result<T, BError>;
    fn or_err_with<C: Into<ImmutStr>, F: FnOnce() -> C>(
        self,
        et: ErrorType,
        context: F,
    ) -> Result<T, BError>;
}

Helper trait to convert an Option to an Error with context.

Required Methods

fn or_err(self, et: ErrorType, context: &'static str) -> Result<T, BError>

fn or_err_with<C: Into<ImmutStr>, F: FnOnce() -> C>( self, et: ErrorType, context: F, ) -> Result<T, BError>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T> OkOrErr<T> for Option<T>

fn or_err(self, et: ErrorType, context: &'static str) -> Result<T, BError>

Convert the Option to a new Error with ErrorType and context if None, Ok otherwise.

This is a shortcut for .ok_or(Error::explain())

fn or_err_with<C: Into<ImmutStr>, F: FnOnce() -> C>( self, et: ErrorType, context: F, ) -> Result<T, BError>

Similar to to_err(), but takes a closure, which is useful for constructing String.

Implementors