Trait db_derive::error::OptionalExtension

pub trait OptionalExtension<T> {
    fn optional(self) -> Result<Option<T>, Error>;
}

Required methods

fn optional(self) -> Result<Option<T>, Error>

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Implementations on Foreign Types

impl<T> OptionalExtension<T> for Result<T, Error>

fn optional(self) -> Result<Option<T>, Error>

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Implementors

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