Trait OptionInsertExt 

pub trait OptionInsertExt {
    // Required method
    fn insert_option<'a, T>(
        &mut self,
        key: OptionKey<T>,
        value: T,
    ) -> Result<(), Error>
       where T: Into<OptionValue<'a>>;
}

Extension class for additional helper methods for OptionInsertExt.

Required Methods

fn insert_option<'a, T>( &mut self, key: OptionKey<T>, value: T, ) -> Result<(), Error>

where T: Into<OptionValue<'a>>,

Inserts an option into the message with a value of the appropriate type. Calling this method with out-of-order keys will incur a significant performance penalty.

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.

Implementors

impl<O> OptionInsertExt for O

where O: OptionInsert + ?Sized,