Trait ErrorContext 

pub trait ErrorContext<T> {
    // Required methods
    fn context(self, context: impl Into<String>) -> Result<T>;
    fn with_context<F>(self, f: F) -> Result<T>
       where F: FnOnce() -> String;
}

Extension trait for adding context to Results

Required Methods

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

Add context to an error

fn with_context<F>(self, f: F) -> Result<T>

where F: FnOnce() -> String,

Add context with a closure (only called on 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.

Implementations on Foreign Types

impl<T, E> ErrorContext<T> for Result<T, E>

where E: Error + Send + Sync + 'static,

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

fn with_context<F>(self, f: F) -> Result<T>

where F: FnOnce() -> String,

Implementors