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ical/prop/
sequence.rs

1//! # SEQUENCE
2//!
3//! The `SEQUENCE` property: the revision number of the component, raised on
4//! every significant change (RFC 5545 3.8.7.4).
5
6use crate::{
7    prop::{IcalPropKind, cardinality::IcalPropCardinality, spec::IcalPropSpec},
8    value::IcalValueKind,
9    version::IcalVersion,
10};
11
12/// The `SEQUENCE` property marker.
13pub struct SEQUENCE;
14
15impl IcalPropSpec for SEQUENCE {
16    const KIND: IcalPropKind = IcalPropKind::Sequence;
17
18    fn cardinality(_version: IcalVersion) -> IcalPropCardinality {
19        IcalPropCardinality::AtMostOne
20    }
21
22    fn allowed_values(_version: IcalVersion) -> &'static [IcalValueKind] {
23        &[IcalValueKind::Integer]
24    }
25}