Trait DMSCErrorContext 

pub trait DMSCErrorContext<T, E> {
    // Required methods
    fn chain_context<S>(self, context: S) -> Result<T, DMSCErrorChain>
       where S: Into<String>;
    fn with_chain_context<S, F>(self, f: F) -> Result<T, DMSCErrorChain>
       where S: Into<String>,
             F: FnOnce() -> S;
}

Trait for adding error chain functionality to Result types.

Required Methods

fn chain_context<S>(self, context: S) -> Result<T, DMSCErrorChain>

where S: Into<String>,

Adds context to the error if the Result is Err.

fn with_chain_context<S, F>(self, f: F) -> Result<T, DMSCErrorChain>

where S: Into<String>, F: FnOnce() -> S,

Adds context to the error with lazy evaluation.

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> DMSCErrorContext<T, E> for Result<T, E>

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

fn chain_context<S>(self, context: S) -> Result<T, DMSCErrorChain>

where S: Into<String>,

fn with_chain_context<S, F>(self, f: F) -> Result<T, DMSCErrorChain>

where S: Into<String>, F: FnOnce() -> S,

Implementors