Trait der::asn1::Choice

source ·
pub trait Choice<'a>: Decodable<'a> + Tagged {
    // Required method
    fn can_decode(tag: Tag) -> bool;
Expand description

ASN.1 CHOICE denotes a union of one or more possible alternatives.

The types MUST have distinct tags.

This crate models choice as a trait, with a blanket impl for all types which impl Decodable + FixedTag (i.e. they are modeled as a CHOICE with only one possible variant)

Required Methods§


fn can_decode(tag: Tag) -> bool

Is the provided Tag decodable as a variant of this CHOICE?



impl<'a> Choice<'a> for Any<'a>


impl<'a, T> Choice<'a> for ContextSpecific<T>where T: Decodable<'a> + Tagged,


impl<'a, T> Choice<'a> for Twhere T: Decodable<'a> + FixedTag,

This blanket impl allows any Tagged type to function as a Choice with a single alternative.