1use proc_macro::{Ident, Span, TokenStream};
2
3use super::modifier;
4use crate::to_tokens::ToTokenStream;
5
6macro_rules! declare_component {
7 ($($name:ident)*) => {
8 pub(crate) enum Component {$(
9 $name(modifier::$name),
10 )*}
11
12 impl ToTokenStream for Component {
13 fn append_to(self, ts: &mut TokenStream) {
14 let mut mts = TokenStream::new();
15
16 let component = match self {$(
17 Self::$name(modifier) => {
18 modifier.append_to(&mut mts);
19 stringify!($name)
20 }
21 )*};
22 let component = Ident::new(component, Span::mixed_site());
23
24 quote_append! { ts
25 ::time::format_description::Component::#(component)(#S(mts))
26 }
27 }
28 }
29 };
30}
31
32declare_component! {
33 Day
34 Month
35 Ordinal
36 Weekday
37 WeekNumber
38 Year
39 Hour
40 Minute
41 Period
42 Second
43 Subsecond
44 OffsetHour
45 OffsetMinute
46 OffsetSecond
47 Ignore
48 UnixTimestamp
49 End
50}
51