Trait mail::header_encoding::EncodableInHeaderBoxExt

pub trait EncodableInHeaderBoxExt {
    fn downcast<T>(self) -> Result<Box<T>, Self>
    where
        T: EncodableInHeader;
}

Required methods

fn downcast<T>(self) -> Result<Box<T>, Self> where
    T: EncodableInHeader, 

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Implementations on Foreign Types

impl EncodableInHeaderBoxExt for Box<dyn EncodableInHeader + 'static + Send>

fn downcast<T>(
    self
) -> Result<Box<T>, Box<dyn EncodableInHeader + 'static + Send>> where
    T: EncodableInHeader, 

impl EncodableInHeaderBoxExt for Box<dyn EncodableInHeader + 'static>

fn downcast<T>(self) -> Result<Box<T>, Box<dyn EncodableInHeader + 'static>> where
    T: EncodableInHeader, 

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Implementors

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