pub type OptTaggedExplicit<T, const TAG: u32> = Option<TaggedValue<T, Explicit, asn1_rs::::asn1_types::tagged::explicit::TaggedExplicit::{constant#0}, TAG>>;Available on crate feature
mtls only.Expand description
A helper object to parse [ n ] EXPLICIT T OPTIONAL
A helper object implementing FromBer and FromDer, to parse tagged
optional values.
This helper expects context-specific tags.
Use Option< TaggedValue > for a more generic implementation.
§Examples
To parse a [0] EXPLICIT INTEGER OPTIONAL object:
use asn1_rs::{FromBer, Integer, OptTaggedExplicit, TaggedValue};
let bytes = &[0xa0, 0x03, 0x2, 0x1, 0x2];
// If tagged object is present (and has expected tag), parsing succeeds:
let (_, tagged) = OptTaggedExplicit::<Integer, 0>::from_ber(bytes).unwrap();
assert_eq!(tagged, Some(TaggedValue::explicit(Integer::from(2))));
// If tagged object is not present or has different tag, parsing
// also succeeds (returning None):
let (_, tagged) = OptTaggedExplicit::<Integer, 0>::from_ber(&[]).unwrap();
assert_eq!(tagged, None);Aliased Type§
pub enum OptTaggedExplicit<T, const TAG: u32> {
None,
Some(TaggedValue<T, Explicit, 2, TAG>),
}