Trait ResultChainError

pub trait ResultChainError<T, O: ErrorCategory, Tag> {
    // Required method
    fn chain_err(self, error_code: O) -> Result<T, Error<O>>;
}

A trait that allows chaining if a Result contains an Error value.

Required Methods

fn chain_err(self, error_code: O) -> Result<T, Error<O>>

If the results contains an Err value, chain it with the supplied error_code and return Err with the result, otherwise forward the Ok value.

Panics

If this Result is an Err value and the error category O is not linked with the ErrorCategory of the most recent error code in the error, this function will panic.

Implementations on Foreign Types

impl<OK, ERR, O, TAG> ResultChainError<OK, O, TAG> for Result<OK, ERR>

where O: ErrorCategory, ERR: ChainError<O, TAG>,

fn chain_err(self, error_code: O) -> Result<OK, Error<O>>

Implementors