1use std::num::NonZeroU16;
2
3use proc_macro::{Ident, Span, TokenStream, TokenTree};
4
5use crate::to_tokens::{ToTokenStream, ToTokenTree};
6
7macro_rules! to_tokens {
8 (
9 $(#[$struct_attr:meta])*
10 $struct_vis:vis struct $struct_name:ident {$(
11 $(#[$field_attr:meta])*
12 $field_vis:vis $field_name:ident : $field_ty:ty
13 ),* $(,)?}
14 ) => {
15 $(#[$struct_attr])*
16 $struct_vis struct $struct_name {$(
17 $(#[$field_attr])*
18 $field_vis $field_name: $field_ty
19 ),*}
20
21 impl ToTokenTree for $struct_name {
22 fn into_token_tree(self) -> TokenTree {
23 let mut tokens = TokenStream::new();
24 let Self {$($field_name),*} = self;
25
26 quote_append! { tokens
27 let mut value = ::time::format_description::modifier::$struct_name::default();
28 };
29 $(
30 quote_append!(tokens value.$field_name =);
31 $field_name.append_to(&mut tokens);
32 quote_append!(tokens ;);
33 )*
34 quote_append!(tokens value);
35
36 proc_macro::TokenTree::Group(proc_macro::Group::new(
37 proc_macro::Delimiter::Brace,
38 tokens,
39 ))
40 }
41 }
42 };
43
44 (
45 $(#[$enum_attr:meta])*
46 $enum_vis:vis enum $enum_name:ident {$(
47 $(#[$variant_attr:meta])*
48 $variant_name:ident
49 ),+ $(,)?}
50 ) => {
51 $(#[$enum_attr])*
52 $enum_vis enum $enum_name {$(
53 $(#[$variant_attr])*
54 $variant_name
55 ),+}
56
57 impl ToTokenStream for $enum_name {
58 fn append_to(self, ts: &mut TokenStream) {
59 quote_append! { ts
60 ::time::format_description::modifier::$enum_name::
61 };
62 let name = match self {
63 $(Self::$variant_name => stringify!($variant_name)),+
64 };
65 ts.extend([TokenTree::Ident(Ident::new(name, Span::mixed_site()))]);
66 }
67 }
68 }
69}
70
71to_tokens! {
72 pub(crate) struct Day {
73 pub(crate) padding: Padding,
74 }
75}
76
77to_tokens! {
78 pub(crate) enum MonthRepr {
79 Numerical,
80 Long,
81 Short,
82 }
83}
84
85to_tokens! {
86 pub(crate) struct Month {
87 pub(crate) padding: Padding,
88 pub(crate) repr: MonthRepr,
89 pub(crate) case_sensitive: bool,
90 }
91}
92
93to_tokens! {
94 pub(crate) struct Ordinal {
95 pub(crate) padding: Padding,
96 }
97}
98
99to_tokens! {
100 pub(crate) enum WeekdayRepr {
101 Short,
102 Long,
103 Sunday,
104 Monday,
105 }
106}
107
108to_tokens! {
109 pub(crate) struct Weekday {
110 pub(crate) repr: WeekdayRepr,
111 pub(crate) one_indexed: bool,
112 pub(crate) case_sensitive: bool,
113 }
114}
115
116to_tokens! {
117 pub(crate) enum WeekNumberRepr {
118 Iso,
119 Sunday,
120 Monday,
121 }
122}
123
124to_tokens! {
125 pub(crate) struct WeekNumber {
126 pub(crate) padding: Padding,
127 pub(crate) repr: WeekNumberRepr,
128 }
129}
130
131to_tokens! {
132 pub(crate) enum YearRepr {
133 Full,
134 Century,
135 LastTwo,
136 }
137}
138
139to_tokens! {
140 pub(crate) struct Year {
141 pub(crate) padding: Padding,
142 pub(crate) repr: YearRepr,
143 pub(crate) iso_week_based: bool,
144 pub(crate) sign_is_mandatory: bool,
145 }
146}
147
148to_tokens! {
149 pub(crate) struct Hour {
150 pub(crate) padding: Padding,
151 pub(crate) is_12_hour_clock: bool,
152 }
153}
154
155to_tokens! {
156 pub(crate) struct Minute {
157 pub(crate) padding: Padding,
158 }
159}
160
161to_tokens! {
162 pub(crate) struct Period {
163 pub(crate) is_uppercase: bool,
164 pub(crate) case_sensitive: bool,
165 }
166}
167
168to_tokens! {
169 pub(crate) struct Second {
170 pub(crate) padding: Padding,
171 }
172}
173
174to_tokens! {
175 pub(crate) enum SubsecondDigits {
176 One,
177 Two,
178 Three,
179 Four,
180 Five,
181 Six,
182 Seven,
183 Eight,
184 Nine,
185 OneOrMore,
186 }
187}
188
189to_tokens! {
190 pub(crate) struct Subsecond {
191 pub(crate) digits: SubsecondDigits,
192 }
193}
194
195to_tokens! {
196 pub(crate) struct OffsetHour {
197 pub(crate) sign_is_mandatory: bool,
198 pub(crate) padding: Padding,
199 }
200}
201
202to_tokens! {
203 pub(crate) struct OffsetMinute {
204 pub(crate) padding: Padding,
205 }
206}
207
208to_tokens! {
209 pub(crate) struct OffsetSecond {
210 pub(crate) padding: Padding,
211 }
212}
213
214to_tokens! {
215 pub(crate) enum Padding {
216 Space,
217 Zero,
218 None,
219 }
220}
221
222pub(crate) struct Ignore {
223 pub(crate) count: NonZeroU16,
224}
225
226impl ToTokenTree for Ignore {
227 fn into_token_tree(self) -> TokenTree {
228 quote_group! {{
229 ::time::format_description::modifier::Ignore::count(#(self.count))
230 }}
231 }
232}
233
234to_tokens! {
235 pub(crate) enum UnixTimestampPrecision {
236 Second,
237 Millisecond,
238 Microsecond,
239 Nanosecond,
240 }
241}
242
243to_tokens! {
244 pub(crate) struct UnixTimestamp {
245 pub(crate) precision: UnixTimestampPrecision,
246 pub(crate) sign_is_mandatory: bool,
247 }
248}
249
250to_tokens! {
251 pub(crate) struct End {}
252}
253