chrono/offset/local/tz_info/
mod.rs

1#![deny(missing_docs)]
2#![allow(dead_code)]
3#![warn(unreachable_pub)]
4
5use std::num::ParseIntError;
6use std::str::Utf8Error;
7use std::time::SystemTimeError;
8use std::{error, fmt, io};
9
10mod timezone;
11pub(crate) use timezone::TimeZone;
12
13mod parser;
14mod rule;
15
16/// Unified error type for everything in the crate
17#[derive(Debug)]
18pub(crate) enum Error {
19    /// Date time error
20    DateTime(&'static str),
21    /// Local time type search error
22    FindLocalTimeType(&'static str),
23    /// Local time type error
24    LocalTimeType(&'static str),
25    /// Invalid slice for integer conversion
26    InvalidSlice(&'static str),
27    /// Invalid Tzif file
28    InvalidTzFile(&'static str),
29    /// Invalid TZ string
30    InvalidTzString(&'static str),
31    /// I/O error
32    Io(io::Error),
33    /// Out of range error
34    OutOfRange(&'static str),
35    /// Integer parsing error
36    ParseInt(ParseIntError),
37    /// Date time projection error
38    ProjectDateTime(&'static str),
39    /// System time error
40    SystemTime(SystemTimeError),
41    /// Time zone error
42    TimeZone(&'static str),
43    /// Transition rule error
44    TransitionRule(&'static str),
45    /// Unsupported Tzif file
46    UnsupportedTzFile(&'static str),
47    /// Unsupported TZ string
48    UnsupportedTzString(&'static str),
49    /// UTF-8 error
50    Utf8(Utf8Error),
51}
52
53impl fmt::Display for Error {
54    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
55        use Error::*;
56        match self {
57            DateTime(error) => write!(f, "invalid date time: {}", error),
58            FindLocalTimeType(error) => error.fmt(f),
59            LocalTimeType(error) => write!(f, "invalid local time type: {}", error),
60            InvalidSlice(error) => error.fmt(f),
61            InvalidTzString(error) => write!(f, "invalid TZ string: {}", error),
62            InvalidTzFile(error) => error.fmt(f),
63            Io(error) => error.fmt(f),
64            OutOfRange(error) => error.fmt(f),
65            ParseInt(error) => error.fmt(f),
66            ProjectDateTime(error) => error.fmt(f),
67            SystemTime(error) => error.fmt(f),
68            TransitionRule(error) => write!(f, "invalid transition rule: {}", error),
69            TimeZone(error) => write!(f, "invalid time zone: {}", error),
70            UnsupportedTzFile(error) => error.fmt(f),
71            UnsupportedTzString(error) => write!(f, "unsupported TZ string: {}", error),
72            Utf8(error) => error.fmt(f),
73        }
74    }
75}
76
77impl error::Error for Error {}
78
79impl From<io::Error> for Error {
80    fn from(error: io::Error) -> Self {
81        Error::Io(error)
82    }
83}
84
85impl From<ParseIntError> for Error {
86    fn from(error: ParseIntError) -> Self {
87        Error::ParseInt(error)
88    }
89}
90
91impl From<SystemTimeError> for Error {
92    fn from(error: SystemTimeError) -> Self {
93        Error::SystemTime(error)
94    }
95}
96
97impl From<Utf8Error> for Error {
98    fn from(error: Utf8Error) -> Self {
99        Error::Utf8(error)
100    }
101}
102
103/// Number of hours in one day
104const HOURS_PER_DAY: i64 = 24;
105/// Number of seconds in one hour
106const SECONDS_PER_HOUR: i64 = 3600;
107/// Number of seconds in one day
108const SECONDS_PER_DAY: i64 = SECONDS_PER_HOUR * HOURS_PER_DAY;
109/// Number of days in one week
110const DAYS_PER_WEEK: i64 = 7;
111
112/// Month days in a normal year
113const DAY_IN_MONTHS_NORMAL_YEAR: [i64; 12] = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
114/// Cumulated month days in a normal year
115const CUMUL_DAY_IN_MONTHS_NORMAL_YEAR: [i64; 12] =
116    [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
chrono/offset/local/tz_info/mod.rs

chrono/offset/local/tz_info/
mod.rs
