1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153

// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).

//! 🚧 \[Unstable\] Data provider struct definitions for this ICU4X component.
//!
//! <div class="stab unstable">
//! 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
//! including in SemVer minor releases. While the serde representation of data structs is guaranteed
//! to be stable, their Rust representation might not be. Use with caution.
//! </div>
//!
//! Read more about data providers: [`icu_provider`]

// Provider structs must be stable
#![allow(clippy::exhaustive_structs, clippy::exhaustive_enums)]

use crate::types::IsoWeekday;
use core::str::FromStr;
use icu_provider::prelude::*;
use tinystr::TinyStr16;
use zerovec::ZeroVec;

#[cfg(feature = "compiled_data")]
#[derive(Debug)]
/// Baked data
///
/// <div class="stab unstable">
/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
/// including in SemVer minor releases. In particular, the `DataProvider` implementations are only
/// guaranteed to match with this version's `*_unstable` providers. Use with caution.
/// </div>
pub struct Baked;

#[cfg(feature = "compiled_data")]
const _: () = {
    pub mod icu {
        pub use crate as calendar;
        pub use icu_locid_transform as locid_transform;
    }
    icu_calendar_data::make_provider!(Baked);
    icu_calendar_data::impl_calendar_japanese_v1!(Baked);
    icu_calendar_data::impl_calendar_japanext_v1!(Baked);
    icu_calendar_data::impl_datetime_week_data_v1!(Baked);
};

#[cfg(feature = "datagen")]
/// The latest minimum set of keys required by this component.
pub const KEYS: &[DataKey] = &[
    JapaneseErasV1Marker::KEY,
    JapaneseExtendedErasV1Marker::KEY,
    WeekDataV1Marker::KEY,
];

/// The date at which an era started
///
/// The order of fields in this struct is important!
///
/// <div class="stab unstable">
/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
/// to be stable, their Rust representation might not be. Use with caution.
/// </div>
#[zerovec::make_ule(EraStartDateULE)]
#[derive(
    Copy, Clone, PartialEq, PartialOrd, Eq, Ord, Hash, Debug, yoke::Yokeable, zerofrom::ZeroFrom,
)]
#[cfg_attr(
    feature = "datagen",
    derive(serde::Serialize, databake::Bake),
    databake(path = icu_calendar::provider),
)]
#[cfg_attr(feature = "serde", derive(serde::Deserialize))]
pub struct EraStartDate {
    /// The year the era started in
    pub year: i32,
    /// The month the era started in
    pub month: u8,
    /// The day the era started in
    pub day: u8,
}

/// A data structure containing the necessary era data for constructing a
/// [`Japanese`](crate::japanese::Japanese) calendar object
///
/// <div class="stab unstable">
/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
/// to be stable, their Rust representation might not be. Use with caution.
/// </div>
#[icu_provider::data_struct(
    marker(JapaneseErasV1Marker, "calendar/japanese@1", singleton),
    marker(JapaneseExtendedErasV1Marker, "calendar/japanext@1", singleton)
)]
#[derive(Debug, PartialEq, Clone, Default)]
#[cfg_attr(
    feature = "datagen",
    derive(serde::Serialize, databake::Bake),
    databake(path = icu_calendar::provider),
)]
#[cfg_attr(feature = "serde", derive(serde::Deserialize))]
pub struct JapaneseErasV1<'data> {
    /// A map from era start dates to their era codes
    #[cfg_attr(feature = "serde", serde(borrow))]
    pub dates_to_eras: ZeroVec<'data, (EraStartDate, TinyStr16)>,
}

impl FromStr for EraStartDate {
    type Err = ();
    fn from_str(mut s: &str) -> Result<Self, ()> {
        let sign = if let Some(suffix) = s.strip_prefix('-') {
            s = suffix;
            -1
        } else {
            1
        };

        let mut split = s.split('-');
        let year = split.next().ok_or(())?.parse::<i32>().map_err(|_| ())? * sign;
        let month = split.next().ok_or(())?.parse().map_err(|_| ())?;
        let day = split.next().ok_or(())?.parse().map_err(|_| ())?;

        Ok(EraStartDate { year, month, day })
    }
}

/// An ICU4X mapping to a subset of CLDR weekData.
/// See CLDR-JSON's weekData.json for more context.
///
/// <div class="stab unstable">
/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
/// to be stable, their Rust representation might not be. Use with caution.
/// </div>
#[icu_provider::data_struct(marker(
    WeekDataV1Marker,
    "datetime/week_data@1",
    fallback_by = "region"
))]
#[derive(Clone, Copy, Debug, PartialEq)]
#[cfg_attr(
    feature = "datagen",
    derive(serde::Serialize, databake::Bake),
    databake(path = icu_calendar::provider),
)]
#[cfg_attr(feature = "serde", derive(serde::Deserialize))]
#[allow(clippy::exhaustive_structs)] // used in data provider
pub struct WeekDataV1 {
    /// The first day of a week.
    pub first_weekday: IsoWeekday,
    /// For a given week, the minimum number of that week's days present in a given month or year for the week to be considered part of that month or year.
    pub min_week_days: u8,
}