1mod component;
2pub(super) mod modifier;
3
4use proc_macro::{Literal, TokenStream};
5
6pub(crate) use self::component::Component;
7use crate::to_tokens::ToTokenStream;
8
9#[allow(variant_size_differences)]
10pub(crate) enum OwnedFormatItem {
11 Literal(Box<[u8]>),
12 Component(Component),
13 Compound(Box<[Self]>),
14 Optional(Box<Self>),
15 First(Box<[Self]>),
16}
17
18impl ToTokenStream for OwnedFormatItem {
19 fn append_to(self, ts: &mut TokenStream) {
20 match self {
21 Self::Literal(bytes) => quote_append! { ts
22 ::time::format_description::BorrowedFormatItem::Literal {
23 0: #(Literal::byte_string(bytes.as_ref()))
24 }
25 },
26 Self::Component(component) => quote_append! { ts
27 ::time::format_description::BorrowedFormatItem::Component { 0: #S(component) }
28 },
29 Self::Compound(items) => {
30 let items = items
31 .into_vec()
32 .into_iter()
33 .map(|item| quote! { #S(item), })
34 .collect::<TokenStream>();
35 quote_append! { ts
36 ::time::format_description::BorrowedFormatItem::Compound { 0: &[#S(items)] }
37 }
38 }
39 Self::Optional(item) => quote_append! {ts
40 ::time::format_description::BorrowedFormatItem::Optional { 0: &#S(*item) }
41 },
42 Self::First(items) => {
43 let items = items
44 .into_vec()
45 .into_iter()
46 .map(|item| quote! { #S(item), })
47 .collect::<TokenStream>();
48 quote_append! { ts
49 ::time::format_description::BorrowedFormatItem::First { 0: &[#S(items)] }
50 }
51 }
52 }
53 }
54}
55