time_macros/format_description/public/
modifier.rs

1use std::num::NonZero;
2
3use proc_macro::{Delimiter, Group, Ident, Punct, Spacing, 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 = $default:pat
13        ),* $(,)?}
14    ) => {
15        $(#[$struct_attr])*
16        #[derive(Clone, Copy)]
17        $struct_vis struct $struct_name {$(
18            $(#[$field_attr])*
19            $field_vis $field_name: $field_ty
20        ),*}
21
22        impl ToTokenTree for $struct_name {
23            fn into_token_tree(self) -> TokenTree {
24                let Self {$($field_name),*} = self;
25
26                #[allow(clippy::redundant_pattern_matching)]
27                if matches!(($(&$field_name,)*), ($($default,)*)) {
28                    return TokenTree::Group(Group::new(
29                        Delimiter::None,
30                        quote! { $struct_name::default() }
31                    ));
32                }
33
34                let tokens = TokenStream::from_iter([
35                    quote_inner!([] [] $struct_name::default()),
36                    $(
37                        #[allow(clippy::redundant_pattern_matching)]
38                        if !matches!($field_name, $default) {
39                            let method_name = Ident::new(concat!("with_", stringify!($field_name)), Span::mixed_site());
40                            quote_inner!([] [] .#(method_name)(#S($field_name)))
41                        } else {
42                            TokenStream::new()
43                        }
44                    ),*
45                ]);
46
47                TokenTree::Group(Group::new(
48                    Delimiter::Brace,
49                    tokens,
50                ))
51            }
52        }
53    };
54
55    (
56        $(#[$enum_attr:meta])*
57        $enum_vis:vis enum $enum_name:ident {$(
58            $(#[$variant_attr:meta])*
59            $variant_name:ident
60        ),+ $(,)?}
61    ) => {
62        $(#[$enum_attr])*
63        #[derive(Clone, Copy)]
64        $enum_vis enum $enum_name {$(
65            $(#[$variant_attr])*
66            $variant_name
67        ),+}
68
69        impl ToTokenStream for $enum_name {
70            fn into_token_stream(self) -> TokenStream {
71                let name = match self {
72                    $(Self::$variant_name => stringify!($variant_name)),+
73                };
74                let name = Ident::new(name, Span::mixed_site());
75                quote! { $enum_name::#(name) }
76            }
77        }
78    }
79}
80
81to_tokens! {
82    pub(crate) struct Day {
83        pub(crate) padding: Padding = Padding::Zero,
84    }
85}
86
87to_tokens! {
88    pub(crate) struct MonthShort {
89        pub(crate) case_sensitive: bool = true,
90    }
91}
92
93to_tokens! {
94    pub(crate) struct MonthLong {
95        pub(crate) case_sensitive: bool = true,
96    }
97}
98
99to_tokens! {
100    pub(crate) struct MonthNumerical {
101        pub(crate) padding: Padding = Padding::Zero,
102    }
103}
104
105to_tokens! {
106    pub(crate) struct Ordinal {
107        pub(crate) padding: Padding = Padding::Zero,
108    }
109}
110
111to_tokens! {
112    pub(crate) struct WeekdayShort {
113        pub(crate) case_sensitive: bool = true,
114    }
115}
116
117to_tokens! {
118    pub(crate) struct WeekdayLong {
119        pub(crate) case_sensitive: bool = true,
120    }
121}
122
123to_tokens! {
124    pub(crate) struct WeekdaySunday {
125        pub(crate) one_indexed: bool = true,
126    }
127}
128
129to_tokens! {
130    pub(crate) struct WeekdayMonday {
131        pub(crate) one_indexed: bool = true,
132    }
133}
134
135to_tokens! {
136    pub(crate) struct WeekNumberIso {
137        pub(crate) padding: Padding = Padding::Zero,
138    }
139}
140
141to_tokens! {
142    pub(crate) struct WeekNumberSunday {
143        pub(crate) padding: Padding = Padding::Zero,
144    }
145}
146
147to_tokens! {
148    pub(crate) struct WeekNumberMonday {
149        pub(crate) padding: Padding = Padding::Zero,
150    }
151}
152
153to_tokens! {
154    pub(crate) struct CalendarYearFullStandardRange {
155        pub(crate) padding: Padding = Padding::Zero,
156        pub(crate) sign_is_mandatory: bool = false,
157    }
158}
159
160#[cfg(feature = "large-dates")]
161to_tokens! {
162    pub(crate) struct CalendarYearFullExtendedRange {
163        pub(crate) padding: Padding = Padding::Zero,
164        pub(crate) sign_is_mandatory: bool = false,
165    }
166}
167
168to_tokens! {
169    pub(crate) struct CalendarYearCenturyStandardRange {
170        pub(crate) padding: Padding = Padding::Zero,
171        pub(crate) sign_is_mandatory: bool = false,
172    }
173}
174
175#[cfg(feature = "large-dates")]
176to_tokens! {
177    pub(crate) struct CalendarYearCenturyExtendedRange {
178        pub(crate) padding: Padding = Padding::Zero,
179        pub(crate) sign_is_mandatory: bool = false,
180    }
181}
182
183to_tokens! {
184    pub(crate) struct IsoYearFullStandardRange {
185        pub(crate) padding: Padding = Padding::Zero,
186        pub(crate) sign_is_mandatory: bool = false,
187    }
188}
189
190#[cfg(feature = "large-dates")]
191to_tokens! {
192    pub(crate) struct IsoYearFullExtendedRange {
193        pub(crate) padding: Padding = Padding::Zero,
194        pub(crate) sign_is_mandatory: bool = false,
195    }
196}
197
198to_tokens! {
199    pub(crate) struct IsoYearCenturyStandardRange {
200        pub(crate) padding: Padding = Padding::Zero,
201        pub(crate) sign_is_mandatory: bool = false,
202    }
203}
204
205#[cfg(feature = "large-dates")]
206to_tokens! {
207    pub(crate) struct IsoYearCenturyExtendedRange {
208        pub(crate) padding: Padding = Padding::Zero,
209        pub(crate) sign_is_mandatory: bool = false,
210    }
211}
212
213to_tokens! {
214    pub(crate) struct CalendarYearLastTwo {
215        pub(crate) padding: Padding = Padding::Zero,
216    }
217}
218
219to_tokens! {
220    pub(crate) struct IsoYearLastTwo {
221        pub(crate) padding: Padding = Padding::Zero,
222    }
223}
224
225to_tokens! {
226    pub(crate) struct Hour12 {
227        pub(crate) padding: Padding = Padding::Zero,
228    }
229}
230
231to_tokens! {
232    pub(crate) struct Hour24 {
233        pub(crate) padding: Padding = Padding::Zero,
234    }
235}
236
237to_tokens! {
238    pub(crate) struct Minute {
239        pub(crate) padding: Padding = Padding::Zero,
240    }
241}
242
243to_tokens! {
244    pub(crate) struct Period {
245        pub(crate) is_uppercase: bool = true,
246        pub(crate) case_sensitive: bool = true,
247    }
248}
249
250to_tokens! {
251    pub(crate) struct Second {
252        pub(crate) padding: Padding = Padding::Zero,
253    }
254}
255
256to_tokens! {
257    pub(crate) enum SubsecondDigits {
258        One,
259        Two,
260        Three,
261        Four,
262        Five,
263        Six,
264        Seven,
265        Eight,
266        Nine,
267        OneOrMore,
268    }
269}
270
271to_tokens! {
272    pub(crate) struct Subsecond {
273        pub(crate) digits: SubsecondDigits = SubsecondDigits::OneOrMore,
274    }
275}
276
277to_tokens! {
278    pub(crate) struct OffsetHour {
279        pub(crate) sign_is_mandatory: bool = false,
280        pub(crate) padding: Padding = Padding::Zero,
281    }
282}
283
284to_tokens! {
285    pub(crate) struct OffsetMinute {
286        pub(crate) padding: Padding = Padding::Zero,
287    }
288}
289
290to_tokens! {
291    pub(crate) struct OffsetSecond {
292        pub(crate) padding: Padding = Padding::Zero,
293    }
294}
295
296to_tokens! {
297    pub(crate) enum Padding {
298        Space,
299        Zero,
300        None,
301    }
302}
303
304#[derive(Clone, Copy)]
305pub(crate) struct Ignore {
306    pub(crate) count: NonZero<u16>,
307}
308
309impl ToTokenTree for Ignore {
310    fn into_token_tree(self) -> TokenTree {
311        TokenTree::Group(Group::new(
312            Delimiter::None,
313            quote! {
314                // Safety: `self.get()` cannot be zero because `self` is a `NonZero<u16>`.
315                Ignore::count(unsafe {
316                    ::core::num::NonZero::<u16>::new_unchecked(#(self.count.get()))
317                })
318            },
319        ))
320    }
321}
322
323to_tokens! {
324    pub(crate) struct UnixTimestampSecond {
325        pub(crate) sign_is_mandatory: bool = false,
326    }
327}
328
329to_tokens! {
330    pub(crate) struct UnixTimestampMillisecond {
331        pub(crate) sign_is_mandatory: bool = false,
332    }
333}
334
335to_tokens! {
336    pub(crate) struct UnixTimestampMicrosecond {
337        pub(crate) sign_is_mandatory: bool = false,
338    }
339}
340
341to_tokens! {
342    pub(crate) struct UnixTimestampNanosecond {
343        pub(crate) sign_is_mandatory: bool = false,
344    }
345}
346
347to_tokens! {
348    pub(crate) enum TrailingInput {
349        Prohibit,
350        Discard,
351    }
352}
353
354to_tokens! {
355    pub(crate) struct End {
356        pub(crate) trailing_input: TrailingInput = TrailingInput::Prohibit,
357    }
358}
time_macros/format_description/public/modifier.rs

time_macros/format_description/public/
modifier.rs
