Trait OptionExt 

pub trait OptionExt<T> {
    // Required method
    fn ok_or_err(self, msg: impl Into<String>) -> Result<T>;
}

Extension trait for Option types

Required Methods

fn ok_or_err(self, msg: impl Into<String>) -> Result<T>

Convert None to an error with message

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.

Implementations on Foreign Types

impl<T> OptionExt<T> for Option<T>

fn ok_or_err(self, msg: impl Into<String>) -> Result<T>

Implementors