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chore: checkpoint before Python removal

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Sienna Meridian Satterwhite
2026-03-26 22:33:59 +00:00
parent 683cec9307
commit e568ddf82a
29972 changed files with 11269302 additions and 2 deletions
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1
vendor/time-macros/.cargo-checksum.json vendored Normal file
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{"files":{".cargo_vcs_info.json":"4215d5ade0cabc411673f90370cd6a05bfc1710df7045db8121d9e8e243aec79","Cargo.lock":"47ca936da11798fb9de360893bcf1f6541d00139563071568a96d762761654d1","Cargo.toml":"56c605e811dc713730e5f97147d7c7420dcf8241e4b55dcf1fb0a646b4b93176","Cargo.toml.orig":"5a4c9b7e0554ce79e34c2d4efbad7b5cc66a2852ffd5cac38d02267d7f310e24","LICENSE-Apache":"0d542e0c8804e39aa7f37eb00da5a762149dc682d7829451287e11b938e94594","LICENSE-MIT":"2537228d9a1b44a5dc595241349cae7090b326c8de165aaf89bfddef4a00d0fc","src/date.rs":"7ea88a25e4c29336f95c53cac77f615d68c76306d219ebb756e4c6d02a5336cb","src/datetime.rs":"9dc0337c8fee40a73b8177e3c7699b9ef939bf8a1eaa098ce022ee25922ece50","src/error.rs":"b3dea92631092068dd73e57e1cbf548f7ae85762826dcdea7fd6454bf357a50a","src/format_description/ast.rs":"f63d50910a463286b0dd6941f61bfe92aea923792051f4f054cc2c62b1612b26","src/format_description/format_item.rs":"a4ca512473d79634e4bd378fa84694fe07a7f30ab9728d90592f87bb38c2d3f6","src/format_description/lexer.rs":"04e9b3901783a99487a34d87f2a1be47ce9a1cfec495b904311de634e372b870","src/format_description/mod.rs":"e11732992ec0eb841679cdfba5e32a9a770447e4b0b4cdd36d3a81dfc9aa7251","src/format_description/public/component.rs":"38eb4330b31296f89d5e9e9ae39defcf8b6e5f8fabcffca45f82859da8441cd9","src/format_description/public/mod.rs":"e8cc43dabdff9dce9189e9fd183e1667d6a67b2eff19fe66b84cb180363bb5af","src/format_description/public/modifier.rs":"60dc8af20e2b984819168533a32d8cc8399e2667405b1619e33ee91c21ba8cf6","src/helpers/mod.rs":"6e068cdfac7dd5481c01a46a0dd45e3eeafcf7b74696a842b3af435bfcc64fed","src/helpers/string.rs":"3af2d0c701ca978c705922a272e76506dbdf0f376d44ed9ae7283086c67852ba","src/lib.rs":"19e13440995d2a5c6bf237e719eeb3b0c8db691ba7d13e0d86ab132fa9bc0cc6","src/offset.rs":"1836560aa9c6e58c9c5583211578ddad6570bdf82cda3d2c3a64944041fd2714","src/quote.rs":"eada69cac078f3efa81bef04fda75935e8a09f1cef7c707cf161f4db75400771","src/serde_format_description.rs":"f640a2c6ae0798412c15beec96f0e232c36bd2fcad331ea75ef2a63284591cc9","src/time.rs":"6f6b5211c33768b710d78fb1b052e46ab1df1f6a310fdc16642202cf05b2b284","src/to_tokens.rs":"360105efdc7a7744da8411e4fb7a3fd8b85bab429ebd06e3c29b9f0e3f6381da","src/utc_datetime.rs":"266d0e8675cf4cd57f262df6db45409640a95b539c325eb564ebecc362517d35"},"package":"2e70e4c5a0e0a8a4823ad65dfe1a6930e4f4d756dcd9dd7939022b5e8c501215"}

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vendor/time-macros/.cargo_vcs_info.json vendored Normal file
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{
"git": {
"sha1": "d5144cd2874862d46466c900910cd8577d066019"
},
"path_in_vcs": "time-macros"
}

23
vendor/time-macros/Cargo.lock generated vendored Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "num-conv"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cf97ec579c3c42f953ef76dbf8d55ac91fb219dde70e49aa4a6b7d74e9919050"
[[package]]
name = "time-core"
version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7694e1cfe791f8d31026952abf09c69ca6f6fa4e1a1229e18988f06a04a12dca"
[[package]]
name = "time-macros"
version = "0.2.27"
dependencies = [
"num-conv",
"time-core",
]

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vendor/time-macros/Cargo.toml vendored Normal file
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2024"
rust-version = "1.88.0"
name = "time-macros"
version = "0.2.27"
authors = [
"Jacob Pratt <open-source@jhpratt.dev>",
"Time contributors",
]
build = false
autolib = false
autobins = false
autoexamples = false
autotests = false
autobenches = false
description = """
Procedural macros for the time crate.
This crate is an implementation detail and should not be relied upon directly.
"""
readme = false
keywords = [
"date",
"time",
"calendar",
"duration",
]
categories = ["date-and-time"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/time-rs/time"
[package.metadata.docs.rs]
all-features = true
targets = ["x86_64-unknown-linux-gnu"]
rustdoc-args = ["--generate-link-to-definition"]
[features]
formatting = []
large-dates = []
parsing = []
serde = []
[lib]
name = "time_macros"
path = "src/lib.rs"
proc-macro = true
[dependencies.num-conv]
version = "0.2.0"
[dependencies.time-core]
version = "=0.1.8"
[lints.clippy]
alloc-instead-of-core = "deny"
as-underscore = "warn"
dbg-macro = "warn"
decimal-literal-representation = "warn"
explicit-auto-deref = "warn"
get-unwrap = "warn"
manual-let-else = "warn"
missing-docs-in-private-items = "warn"
missing-enforced-import-renames = "warn"
obfuscated-if-else = "warn"
print-stdout = "warn"
semicolon-outside-block = "warn"
std-instead-of-core = "deny"
todo = "warn"
undocumented-unsafe-blocks = "deny"
unimplemented = "warn"
uninlined-format-args = "warn"
unnested-or-patterns = "warn"
unwrap-in-result = "warn"
unwrap-used = "warn"
use-debug = "warn"
[lints.clippy.all]
level = "warn"
priority = -1
[lints.clippy.incompatible-msrv]
level = "allow"
priority = 1
[lints.clippy.nursery]
level = "warn"
priority = -1
[lints.clippy.option-if-let-else]
level = "allow"
priority = 1
[lints.clippy.redundant-pub-crate]
level = "allow"
priority = 1
[lints.clippy.uninhabited-references]
level = "allow"
priority = 1
[lints.rust]
ambiguous-glob-reexports = "deny"
clashing-extern-declarations = "deny"
const-item-mutation = "deny"
dangling-pointers-from-temporaries = "deny"
deref-nullptr = "deny"
drop-bounds = "deny"
future-incompatible = "deny"
hidden-glob-reexports = "deny"
improper-ctypes = "deny"
improper-ctypes-definitions = "deny"
invalid-from-utf8 = "deny"
invalid-macro-export-arguments = "deny"
invalid-nan-comparisons = "deny"
invalid-reference-casting = "deny"
invalid-value = "deny"
keyword-idents = "warn"
let-underscore = "warn"
macro-use-extern-crate = "warn"
meta-variable-misuse = "warn"
missing-abi = "warn"
missing-copy-implementations = "warn"
missing-debug-implementations = "warn"
missing-docs = "warn"
named-arguments-used-positionally = "deny"
non-ascii-idents = "deny"
noop-method-call = "warn"
opaque-hidden-inferred-bound = "deny"
overlapping-range-endpoints = "deny"
single-use-lifetimes = "warn"
suspicious-double-ref-op = "deny"
trivial-casts = "warn"
trivial-numeric-casts = "warn"
unconditional-recursion = "deny"
unnameable-test-items = "deny"
unreachable-pub = "warn"
unsafe-op-in-unsafe-fn = "deny"
unstable-syntax-pre-expansion = "deny"
unused-import-braces = "warn"
unused-lifetimes = "warn"
unused-qualifications = "warn"
variant-size-differences = "warn"
[lints.rust.unexpected_cfgs]
level = "deny"
priority = 0
check-cfg = [
"cfg(__ui_tests)",
"cfg(bench)",
]
[lints.rust.unstable-name-collisions]
level = "allow"
priority = 1
[lints.rust.unused]
level = "warn"
priority = -1
[lints.rustdoc]
private-doc-tests = "warn"
unescaped-backticks = "warn"

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
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outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
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5. Submission of Contributions. Unless You explicitly state otherwise,
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Notwithstanding the above, nothing herein shall supersede or modify
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6. Trademarks. This License does not grant permission to use the trade
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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END OF TERMS AND CONDITIONS

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Copyright (c) Jacob Pratt et al.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

162
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use std::iter::Peekable;
use num_conv::Truncate;
use proc_macro::token_stream;
use time_core::util::{days_in_year, weeks_in_year};
use crate::Error;
use crate::helpers::{consume_number, consume_punct, days_in_year_month, ymd_to_yo, ywd_to_yo};
use crate::to_tokens::ToTokenStream;
#[cfg(feature = "large-dates")]
const MAX_YEAR: i32 = 999_999;
#[cfg(not(feature = "large-dates"))]
const MAX_YEAR: i32 = 9_999;
pub(crate) struct Date {
pub(crate) year: i32,
pub(crate) ordinal: u16,
}
pub(crate) fn parse(chars: &mut Peekable<token_stream::IntoIter>) -> Result<Date, Error> {
let (year_sign_span, year_sign, explicit_sign) = if let Ok(span) = consume_punct('-', chars) {
(Some(span), -1, true)
} else if let Ok(span) = consume_punct('+', chars) {
(Some(span), 1, true)
} else {
(None, 1, false)
};
let (year_span, mut year) = consume_number::<i32>("year", chars)?;
year *= year_sign;
if year.abs() > MAX_YEAR {
return Err(Error::InvalidComponent {
name: "year",
value: year.to_string(),
span_start: Some(year_sign_span.unwrap_or_else(|| year_span.start())),
span_end: Some(year_span.end()),
});
}
if !explicit_sign && year.abs() >= 10_000 {
return Err(Error::Custom {
message: "years with more than four digits must have an explicit sign".into(),
span_start: Some(year_sign_span.unwrap_or_else(|| year_span.start())),
span_end: Some(year_span.end()),
});
}
consume_punct('-', chars)?;
// year-week-day
if let Some(proc_macro::TokenTree::Ident(ident)) = chars.peek()
&& let s = ident.to_string()
&& s.starts_with('W')
{
let w_span = ident.span();
drop(chars.next()); // consume 'W' and possibly the week number
let (week_span, week, day_span, day);
if s.len() == 1 {
(week_span, week) = consume_number::<u8>("week", chars)?;
consume_punct('-', chars)?;
(day_span, day) = consume_number::<u8>("day", chars)?;
} else {
let presumptive_week = &s[1..];
if presumptive_week.bytes().all(|d| d.is_ascii_digit())
&& let Ok(week_number) = presumptive_week.replace('_', "").parse()
{
(week_span, week) = (w_span, week_number);
consume_punct('-', chars)?;
(day_span, day) = consume_number::<u8>("day", chars)?;
} else {
return Err(Error::InvalidComponent {
name: "week",
value: presumptive_week.to_string(),
span_start: Some(w_span.start()),
span_end: Some(w_span.end()),
});
}
};
if week > weeks_in_year(year) {
return Err(Error::InvalidComponent {
name: "week",
value: week.to_string(),
span_start: Some(w_span.start()),
span_end: Some(week_span.end()),
});
}
if day == 0 || day > 7 {
return Err(Error::InvalidComponent {
name: "day",
value: day.to_string(),
span_start: Some(day_span.start()),
span_end: Some(day_span.end()),
});
}
let (year, ordinal) = ywd_to_yo(year, week, day);
return Ok(Date { year, ordinal });
}
// We don't yet know whether it's year-month-day or year-ordinal.
let (month_or_ordinal_span, month_or_ordinal) =
consume_number::<u16>("month or ordinal", chars)?;
// year-month-day
if consume_punct('-', chars).is_ok() {
let (month_span, month) = (month_or_ordinal_span, month_or_ordinal);
let (day_span, day) = consume_number::<u8>("day", chars)?;
if month == 0 || month > 12 {
return Err(Error::InvalidComponent {
name: "month",
value: month.to_string(),
span_start: Some(month_span.start()),
span_end: Some(month_span.end()),
});
}
let month = month.truncate();
if day == 0 || day > days_in_year_month(year, month) {
return Err(Error::InvalidComponent {
name: "day",
value: day.to_string(),
span_start: Some(day_span.start()),
span_end: Some(day_span.end()),
});
}
let (year, ordinal) = ymd_to_yo(year, month, day);
Ok(Date { year, ordinal })
}
// year-ordinal
else {
let (ordinal_span, ordinal) = (month_or_ordinal_span, month_or_ordinal);
if ordinal == 0 || ordinal > days_in_year(year) {
return Err(Error::InvalidComponent {
name: "ordinal",
value: ordinal.to_string(),
span_start: Some(ordinal_span.start()),
span_end: Some(ordinal_span.end()),
});
}
Ok(Date { year, ordinal })
}
}
impl ToTokenStream for Date {
fn append_to(self, ts: &mut proc_macro::TokenStream) {
quote_append! { ts
unsafe {
::time::Date::__from_ordinal_date_unchecked(
#(self.year),
#(self.ordinal),
)
}
}
}
}

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use std::iter::Peekable;
use proc_macro::{TokenStream, token_stream};
use crate::date::Date;
use crate::error::Error;
use crate::offset::Offset;
use crate::time::Time;
use crate::to_tokens::ToTokenStream;
use crate::{date, offset, time};
pub(crate) struct DateTime {
date: Date,
time: Time,
offset: Option<Offset>,
}
pub(crate) fn parse(chars: &mut Peekable<token_stream::IntoIter>) -> Result<DateTime, Error> {
let date = date::parse(chars)?;
let time = time::parse(chars)?;
let offset = match offset::parse(chars) {
Ok(offset) => Some(offset),
Err(Error::UnexpectedEndOfInput | Error::MissingComponent { name: "sign", .. }) => None,
Err(err) => return Err(err),
};
if let Some(token) = chars.peek() {
return Err(Error::UnexpectedToken {
tree: token.clone(),
});
}
Ok(DateTime { date, time, offset })
}
impl ToTokenStream for DateTime {
fn append_to(self, ts: &mut TokenStream) {
let maybe_offset = match self.offset {
Some(offset) => quote_! { .assume_offset(#S(offset)) },
None => quote_! {},
};
quote_append! { ts
::time::PrimitiveDateTime::new(
#S(self.date),
#S(self.time),
) #S(maybe_offset)
}
}
}

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use std::borrow::Cow;
use std::fmt;
use proc_macro::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
trait WithSpan {
fn with_span(self, span: Span) -> Self;
}
impl WithSpan for TokenTree {
fn with_span(mut self, span: Span) -> Self {
self.set_span(span);
self
}
}
pub(crate) enum Error {
MissingComponent {
name: &'static str,
span_start: Option<Span>,
span_end: Option<Span>,
},
InvalidComponent {
name: &'static str,
value: String,
span_start: Option<Span>,
span_end: Option<Span>,
},
#[cfg(any(feature = "formatting", feature = "parsing"))]
ExpectedString {
span_start: Option<Span>,
span_end: Option<Span>,
},
UnexpectedToken {
tree: TokenTree,
},
UnexpectedEndOfInput,
Custom {
message: Cow<'static, str>,
span_start: Option<Span>,
span_end: Option<Span>,
},
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::MissingComponent { name, .. } => write!(f, "missing component: {name}"),
Self::InvalidComponent { name, value, .. } => {
write!(f, "invalid component: {name} was {value}")
}
#[cfg(any(feature = "formatting", feature = "parsing"))]
Self::ExpectedString { .. } => f.write_str("expected string literal"),
Self::UnexpectedToken { tree } => write!(f, "unexpected token: {tree}"),
Self::UnexpectedEndOfInput => f.write_str("unexpected end of input"),
Self::Custom { message, .. } => f.write_str(message),
}
}
}
impl Error {
fn span_start(&self) -> Span {
match self {
Self::MissingComponent { span_start, .. }
| Self::InvalidComponent { span_start, .. }
| Self::Custom { span_start, .. } => *span_start,
#[cfg(any(feature = "formatting", feature = "parsing"))]
Self::ExpectedString { span_start, .. } => *span_start,
Self::UnexpectedToken { tree } => Some(tree.span()),
Self::UnexpectedEndOfInput => Some(Span::mixed_site()),
}
.unwrap_or_else(Span::mixed_site)
}
fn span_end(&self) -> Span {
match self {
Self::MissingComponent { span_end, .. }
| Self::InvalidComponent { span_end, .. }
| Self::Custom { span_end, .. } => *span_end,
#[cfg(any(feature = "formatting", feature = "parsing"))]
Self::ExpectedString { span_end, .. } => *span_end,
Self::UnexpectedToken { tree, .. } => Some(tree.span()),
Self::UnexpectedEndOfInput => Some(Span::mixed_site()),
}
.unwrap_or_else(|| self.span_start())
}
pub(crate) fn to_compile_error(&self) -> TokenStream {
let (start, end) = (self.span_start(), self.span_end());
[
TokenTree::from(Punct::new(':', Spacing::Joint)).with_span(start),
TokenTree::from(Punct::new(':', Spacing::Alone)).with_span(start),
TokenTree::from(Ident::new("core", start)),
TokenTree::from(Punct::new(':', Spacing::Joint)).with_span(start),
TokenTree::from(Punct::new(':', Spacing::Alone)).with_span(start),
TokenTree::from(Ident::new("compile_error", start)),
TokenTree::from(Punct::new('!', Spacing::Alone)).with_span(start),
TokenTree::from(Group::new(
Delimiter::Parenthesis,
TokenStream::from(
TokenTree::from(Literal::string(&self.to_string())).with_span(end),
),
))
.with_span(end),
]
.iter()
.cloned()
.collect()
}
/// Like `to_compile_error`, but for use in macros that produce items.
#[cfg(all(feature = "serde", any(feature = "formatting", feature = "parsing")))]
pub(crate) fn to_compile_error_standalone(&self) -> TokenStream {
let end = self.span_end();
self.to_compile_error()
.into_iter()
.chain(std::iter::once(
TokenTree::from(Punct::new(';', Spacing::Alone)).with_span(end),
))
.collect()
}
}

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use std::iter;
use super::{Error, Location, Spanned, SpannedValue, Unused, lexer, unused};
pub(super) enum Item<'a> {
Literal(Spanned<&'a [u8]>),
EscapedBracket {
_first: Unused<Location>,
_second: Unused<Location>,
},
Component {
_opening_bracket: Unused<Location>,
_leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
name: Spanned<&'a [u8]>,
modifiers: Box<[Modifier<'a>]>,
_trailing_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
_closing_bracket: Unused<Location>,
},
Optional {
opening_bracket: Location,
_leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
_optional_kw: Unused<Spanned<&'a [u8]>>,
_whitespace: Unused<Spanned<&'a [u8]>>,
nested_format_description: NestedFormatDescription<'a>,
closing_bracket: Location,
},
First {
opening_bracket: Location,
_leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
_first_kw: Unused<Spanned<&'a [u8]>>,
_whitespace: Unused<Spanned<&'a [u8]>>,
nested_format_descriptions: Box<[NestedFormatDescription<'a>]>,
closing_bracket: Location,
},
}
pub(super) struct NestedFormatDescription<'a> {
pub(super) _opening_bracket: Unused<Location>,
pub(super) items: Box<[Item<'a>]>,
pub(super) _closing_bracket: Unused<Location>,
pub(super) _trailing_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
}
pub(super) struct Modifier<'a> {
pub(super) _leading_whitespace: Unused<Spanned<&'a [u8]>>,
pub(super) key: Spanned<&'a [u8]>,
pub(super) _colon: Unused<Location>,
pub(super) value: Spanned<&'a [u8]>,
}
pub(super) fn parse<
'item: 'iter,
'iter,
I: Iterator<Item = Result<lexer::Token<'item>, Error>>,
const VERSION: u8,
>(
tokens: &'iter mut lexer::Lexed<I>,
) -> impl Iterator<Item = Result<Item<'item>, Error>> + use<'item, 'iter, I, VERSION> {
assert!(version!(1..=2));
parse_inner::<_, false, VERSION>(tokens)
}
fn parse_inner<
'item,
I: Iterator<Item = Result<lexer::Token<'item>, Error>>,
const NESTED: bool,
const VERSION: u8,
>(
tokens: &mut lexer::Lexed<I>,
) -> impl Iterator<Item = Result<Item<'item>, Error>> + use<'_, 'item, I, NESTED, VERSION> {
iter::from_fn(move || {
if NESTED && tokens.peek_closing_bracket().is_some() {
return None;
}
let next = match tokens.next()? {
Ok(token) => token,
Err(err) => return Some(Err(err)),
};
Some(match next {
lexer::Token::Literal(Spanned { value: _, span: _ }) if NESTED => {
bug!("literal should not be present in nested description")
}
lexer::Token::Literal(value) => Ok(Item::Literal(value)),
lexer::Token::Bracket {
kind: lexer::BracketKind::Opening,
location,
} => {
if version!(..=1) {
if let Some(second_location) = tokens.next_if_opening_bracket() {
Ok(Item::EscapedBracket {
_first: unused(location),
_second: unused(second_location),
})
} else {
parse_component::<_, VERSION>(location, tokens)
}
} else {
parse_component::<_, VERSION>(location, tokens)
}
}
lexer::Token::Bracket {
kind: lexer::BracketKind::Closing,
location: _,
} if NESTED => {
bug!("closing bracket should be caught by the `if` statement")
}
lexer::Token::Bracket {
kind: lexer::BracketKind::Closing,
location: _,
} => {
bug!("closing bracket should have been consumed by `parse_component`")
}
lexer::Token::ComponentPart { kind: _, value } if NESTED => Ok(Item::Literal(value)),
lexer::Token::ComponentPart { kind: _, value: _ } => {
bug!("component part should have been consumed by `parse_component`")
}
})
})
}
fn parse_component<'a, I: Iterator<Item = Result<lexer::Token<'a>, Error>>, const VERSION: u8>(
opening_bracket: Location,
tokens: &mut lexer::Lexed<I>,
) -> Result<Item<'a>, Error> {
let leading_whitespace = tokens.next_if_whitespace();
let Some(name) = tokens.next_if_not_whitespace() else {
let span = match leading_whitespace {
Some(Spanned { value: _, span }) => span,
None => opening_bracket.to(opening_bracket),
};
return Err(span.error("expected component name"));
};
if *name == b"optional" {
let Some(whitespace) = tokens.next_if_whitespace() else {
return Err(name.span.error("expected whitespace after `optional`"));
};
let nested = parse_nested::<_, VERSION>(whitespace.span.end, tokens)?;
let Some(closing_bracket) = tokens.next_if_closing_bracket() else {
return Err(opening_bracket.error("unclosed bracket"));
};
return Ok(Item::Optional {
opening_bracket,
_leading_whitespace: unused(leading_whitespace),
_optional_kw: unused(name),
_whitespace: unused(whitespace),
nested_format_description: nested,
closing_bracket,
});
}
if *name == b"first" {
let Some(whitespace) = tokens.next_if_whitespace() else {
return Err(name.span.error("expected whitespace after `first`"));
};
let mut nested_format_descriptions = Vec::new();
while let Ok(description) = parse_nested::<_, VERSION>(whitespace.span.end, tokens) {
nested_format_descriptions.push(description);
}
let Some(closing_bracket) = tokens.next_if_closing_bracket() else {
return Err(opening_bracket.error("unclosed bracket"));
};
return Ok(Item::First {
opening_bracket,
_leading_whitespace: unused(leading_whitespace),
_first_kw: unused(name),
_whitespace: unused(whitespace),
nested_format_descriptions: nested_format_descriptions.into_boxed_slice(),
closing_bracket,
});
}
let mut modifiers = Vec::new();
let trailing_whitespace = loop {
let Some(whitespace) = tokens.next_if_whitespace() else {
break None;
};
if let Some(location) = tokens.next_if_opening_bracket() {
return Err(location
.to(location)
.error("modifier must be of the form `key:value`"));
}
let Some(Spanned { value, span }) = tokens.next_if_not_whitespace() else {
break Some(whitespace);
};
let Some(colon_index) = value.iter().position(|&b| b == b':') else {
return Err(span.error("modifier must be of the form `key:value`"));
};
let key = &value[..colon_index];
let value = &value[colon_index + 1..];
if key.is_empty() {
return Err(span.shrink_to_start().error("expected modifier key"));
}
if value.is_empty() {
return Err(span.shrink_to_end().error("expected modifier value"));
}
modifiers.push(Modifier {
_leading_whitespace: unused(whitespace),
key: key.spanned(span.shrink_to_before(colon_index as u32)),
_colon: unused(span.start.offset(colon_index as u32)),
value: value.spanned(span.shrink_to_after(colon_index as u32)),
});
};
let Some(closing_bracket) = tokens.next_if_closing_bracket() else {
return Err(opening_bracket.error("unclosed bracket"));
};
Ok(Item::Component {
_opening_bracket: unused(opening_bracket),
_leading_whitespace: unused(leading_whitespace),
name,
modifiers: modifiers.into_boxed_slice(),
_trailing_whitespace: unused(trailing_whitespace),
_closing_bracket: unused(closing_bracket),
})
}
fn parse_nested<'a, I: Iterator<Item = Result<lexer::Token<'a>, Error>>, const VERSION: u8>(
last_location: Location,
tokens: &mut lexer::Lexed<I>,
) -> Result<NestedFormatDescription<'a>, Error> {
let Some(opening_bracket) = tokens.next_if_opening_bracket() else {
return Err(last_location.error("expected opening bracket"));
};
let items = parse_inner::<_, true, VERSION>(tokens).collect::<Result<_, _>>()?;
let Some(closing_bracket) = tokens.next_if_closing_bracket() else {
return Err(opening_bracket.error("unclosed bracket"));
};
let trailing_whitespace = tokens.next_if_whitespace();
Ok(NestedFormatDescription {
_opening_bracket: unused(opening_bracket),
items,
_closing_bracket: unused(closing_bracket),
_trailing_whitespace: unused(trailing_whitespace),
})
}

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use std::num::NonZero;
use std::str::{self, FromStr};
use super::{Error, Span, Spanned, Unused, ast, unused};
pub(super) fn parse<'a>(
ast_items: impl Iterator<Item = Result<ast::Item<'a>, Error>>,
) -> impl Iterator<Item = Result<Item<'a>, Error>> {
ast_items.map(|ast_item| ast_item.and_then(Item::from_ast))
}
pub(super) enum Item<'a> {
Literal(&'a [u8]),
Component(Component),
Optional {
value: Box<[Self]>,
_span: Unused<Span>,
},
First {
value: Box<[Box<[Self]>]>,
_span: Unused<Span>,
},
}
impl Item<'_> {
pub(super) fn from_ast(ast_item: ast::Item<'_>) -> Result<Item<'_>, Error> {
Ok(match ast_item {
ast::Item::Component {
_opening_bracket: _,
_leading_whitespace: _,
name,
modifiers,
_trailing_whitespace: _,
_closing_bracket: _,
} => Item::Component(component_from_ast(&name, &modifiers)?),
ast::Item::Literal(Spanned { value, span: _ }) => Item::Literal(value),
ast::Item::EscapedBracket {
_first: _,
_second: _,
} => Item::Literal(b"["),
ast::Item::Optional {
opening_bracket,
_leading_whitespace: _,
_optional_kw: _,
_whitespace: _,
nested_format_description,
closing_bracket,
} => {
let items = nested_format_description
.items
.into_vec()
.into_iter()
.map(Item::from_ast)
.collect::<Result<_, _>>()?;
Item::Optional {
value: items,
_span: unused(opening_bracket.to(closing_bracket)),
}
}
ast::Item::First {
opening_bracket,
_leading_whitespace: _,
_first_kw: _,
_whitespace: _,
nested_format_descriptions,
closing_bracket,
} => {
let items = nested_format_descriptions
.into_vec()
.into_iter()
.map(|nested_format_description| {
nested_format_description
.items
.into_vec()
.into_iter()
.map(Item::from_ast)
.collect()
})
.collect::<Result<_, _>>()?;
Item::First {
value: items,
_span: unused(opening_bracket.to(closing_bracket)),
}
}
})
}
}
impl From<Item<'_>> for crate::format_description::public::OwnedFormatItem {
fn from(item: Item<'_>) -> Self {
match item {
Item::Literal(literal) => Self::Literal(literal.to_vec().into_boxed_slice()),
Item::Component(component) => Self::Component(component.into()),
Item::Optional { value, _span: _ } => Self::Optional(Box::new(value.into())),
Item::First { value, _span: _ } => {
Self::First(value.into_vec().into_iter().map(Into::into).collect())
}
}
}
}
impl<'a> From<Box<[Item<'a>]>> for crate::format_description::public::OwnedFormatItem {
fn from(items: Box<[Item<'a>]>) -> Self {
let items = items.into_vec();
match <[_; 1]>::try_from(items) {
Ok([item]) => item.into(),
Err(vec) => Self::Compound(vec.into_iter().map(Into::into).collect()),
}
}
}
macro_rules! component_definition {
(@if_required required then { $($then:tt)* } $(else { $($else:tt)* })?) => { $($then)* };
(@if_required then { $($then:tt)* } $(else { $($else:tt)* })?) => { $($($else)*)? };
(@if_from_str from_str then { $($then:tt)* } $(else { $($else:tt)* })?) => { $($then)* };
(@if_from_str then { $($then:tt)* } $(else { $($else:tt)* })?) => { $($($else)*)? };
($vis:vis enum $name:ident {
$($variant:ident = $parse_variant:literal {$(
$(#[$required:tt])?
$field:ident = $parse_field:literal:
Option<$(#[$from_str:tt])? $field_type:ty>
=> $target_field:ident
),* $(,)?}),* $(,)?
}) => {
$vis enum $name {
$($variant($variant),)*
}
$($vis struct $variant {
$($field: Option<$field_type>),*
})*
$(impl $variant {
fn with_modifiers(
modifiers: &[ast::Modifier<'_>],
_component_span: Span,
) -> Result<Self, Error>
{
#[allow(unused_mut)]
let mut this = Self {
$($field: None),*
};
for modifier in modifiers {
$(#[allow(clippy::string_lit_as_bytes)]
if modifier.key.eq_ignore_ascii_case($parse_field.as_bytes()) {
this.$field = component_definition!(@if_from_str $($from_str)?
then {
parse_from_modifier_value::<$field_type>(&modifier.value)?
} else {
<$field_type>::from_modifier_value(&modifier.value)?
});
continue;
})*
return Err(modifier.key.span.error("invalid modifier key"));
}
$(component_definition! { @if_required $($required)? then {
if this.$field.is_none() {
return Err(_component_span.error("missing required modifier"));
}
}})*
Ok(this)
}
})*
impl From<$name> for crate::format_description::public::Component {
fn from(component: $name) -> Self {
match component {$(
$name::$variant($variant { $($field),* }) => {
$crate::format_description::public::Component::$variant(
super::public::modifier::$variant {$(
$target_field: component_definition! { @if_required $($required)?
then {
match $field {
Some(value) => value.into(),
None => bug!("required modifier was not set"),
}
} else {
$field.unwrap_or_default().into()
}
}
),*}
)
}
)*}
}
}
fn component_from_ast(
name: &Spanned<&[u8]>,
modifiers: &[ast::Modifier<'_>],
) -> Result<Component, Error> {
$(#[allow(clippy::string_lit_as_bytes)]
if name.eq_ignore_ascii_case($parse_variant.as_bytes()) {
return Ok(Component::$variant($variant::with_modifiers(&modifiers, name.span)?));
})*
Err(name.span.error("invalid component"))
}
}
}
component_definition! {
pub(super) enum Component {
Day = "day" {
padding = "padding": Option<Padding> => padding,
},
End = "end" {
trailing_input = "trailing_input": Option<TrailingInput> => trailing_input,
},
Hour = "hour" {
padding = "padding": Option<Padding> => padding,
base = "repr": Option<HourBase> => is_12_hour_clock,
},
Ignore = "ignore" {
#[required]
count = "count": Option<#[from_str] NonZero<u16>> => count,
},
Minute = "minute" {
padding = "padding": Option<Padding> => padding,
},
Month = "month" {
padding = "padding": Option<Padding> => padding,
repr = "repr": Option<MonthRepr> => repr,
case_sensitive = "case_sensitive": Option<MonthCaseSensitive> => case_sensitive,
},
OffsetHour = "offset_hour" {
sign_behavior = "sign": Option<SignBehavior> => sign_is_mandatory,
padding = "padding": Option<Padding> => padding,
},
OffsetMinute = "offset_minute" {
padding = "padding": Option<Padding> => padding,
},
OffsetSecond = "offset_second" {
padding = "padding": Option<Padding> => padding,
},
Ordinal = "ordinal" {
padding = "padding": Option<Padding> => padding,
},
Period = "period" {
case = "case": Option<PeriodCase> => is_uppercase,
case_sensitive = "case_sensitive": Option<PeriodCaseSensitive> => case_sensitive,
},
Second = "second" {
padding = "padding": Option<Padding> => padding,
},
Subsecond = "subsecond" {
digits = "digits": Option<SubsecondDigits> => digits,
},
UnixTimestamp = "unix_timestamp" {
precision = "precision": Option<UnixTimestampPrecision> => precision,
sign_behavior = "sign": Option<SignBehavior> => sign_is_mandatory,
},
Weekday = "weekday" {
repr = "repr": Option<WeekdayRepr> => repr,
one_indexed = "one_indexed": Option<WeekdayOneIndexed> => one_indexed,
case_sensitive = "case_sensitive": Option<WeekdayCaseSensitive> => case_sensitive,
},
WeekNumber = "week_number" {
padding = "padding": Option<Padding> => padding,
repr = "repr": Option<WeekNumberRepr> => repr,
},
Year = "year" {
padding = "padding": Option<Padding> => padding,
repr = "repr": Option<YearRepr> => repr,
range = "range": Option<YearRange> => range,
base = "base": Option<YearBase> => iso_week_based,
sign_behavior = "sign": Option<SignBehavior> => sign_is_mandatory,
},
}
}
macro_rules! target_ty {
($name:ident $type:ty) => {
$type
};
($name:ident) => {
super::public::modifier::$name
};
}
/// Get the target value for a given enum.
macro_rules! target_value {
($name:ident $variant:ident $value:expr) => {
$value
};
($name:ident $variant:ident) => {
super::public::modifier::$name::$variant
};
}
macro_rules! modifier {
($(
enum $name:ident $(($target_ty:ty))? {
$(
$(#[$attr:meta])?
$variant:ident $(($target_value:expr))? = $parse_variant:literal
),* $(,)?
}
)+) => {$(
#[derive(Default)]
enum $name {
$($(#[$attr])? $variant),*
}
impl $name {
/// Parse the modifier from its string representation.
fn from_modifier_value(value: &Spanned<&[u8]>) -> Result<Option<Self>, Error> {
$(if value.eq_ignore_ascii_case($parse_variant) {
return Ok(Some(Self::$variant));
})*
Err(value.span.error("invalid modifier value"))
}
}
impl From<$name> for target_ty!($name $($target_ty)?) {
fn from(modifier: $name) -> Self {
match modifier {
$($name::$variant => target_value!($name $variant $($target_value)?)),*
}
}
}
)+};
}
modifier! {
enum HourBase(bool) {
Twelve(true) = b"12",
#[default]
TwentyFour(false) = b"24",
}
enum MonthCaseSensitive(bool) {
False(false) = b"false",
#[default]
True(true) = b"true",
}
enum MonthRepr {
#[default]
Numerical = b"numerical",
Long = b"long",
Short = b"short",
}
enum Padding {
Space = b"space",
#[default]
Zero = b"zero",
None = b"none",
}
enum PeriodCase(bool) {
Lower(false) = b"lower",
#[default]
Upper(true) = b"upper",
}
enum PeriodCaseSensitive(bool) {
False(false) = b"false",
#[default]
True(true) = b"true",
}
enum SignBehavior(bool) {
#[default]
Automatic(false) = b"automatic",
Mandatory(true) = b"mandatory",
}
enum SubsecondDigits {
One = b"1",
Two = b"2",
Three = b"3",
Four = b"4",
Five = b"5",
Six = b"6",
Seven = b"7",
Eight = b"8",
Nine = b"9",
#[default]
OneOrMore = b"1+",
}
enum TrailingInput {
#[default]
Prohibit = b"prohibit",
Discard = b"discard",
}
enum UnixTimestampPrecision {
#[default]
Second = b"second",
Millisecond = b"millisecond",
Microsecond = b"microsecond",
Nanosecond = b"nanosecond",
}
enum WeekNumberRepr {
#[default]
Iso = b"iso",
Sunday = b"sunday",
Monday = b"monday",
}
enum WeekdayCaseSensitive(bool) {
False(false) = b"false",
#[default]
True(true) = b"true",
}
enum WeekdayOneIndexed(bool) {
False(false) = b"false",
#[default]
True(true) = b"true",
}
enum WeekdayRepr {
Short = b"short",
#[default]
Long = b"long",
Sunday = b"sunday",
Monday = b"monday",
}
enum YearBase(bool) {
#[default]
Calendar(false) = b"calendar",
IsoWeek(true) = b"iso_week",
}
enum YearRepr {
#[default]
Full = b"full",
Century = b"century",
LastTwo = b"last_two",
}
enum YearRange {
Standard = b"standard",
#[default]
Extended = b"extended",
}
}
fn parse_from_modifier_value<T: FromStr>(value: &Spanned<&[u8]>) -> Result<Option<T>, Error> {
str::from_utf8(value)
.ok()
.and_then(|val| val.parse::<T>().ok())
.map(|val| Some(val))
.ok_or_else(|| value.span.error("invalid modifier value"))
}

245
vendor/time-macros/src/format_description/lexer.rs vendored Normal file
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use core::iter;
use super::{Error, Location, Spanned, SpannedValue};
pub(super) struct Lexed<I: Iterator> {
iter: iter::Peekable<I>,
}
impl<I: Iterator> Iterator for Lexed<I> {
type Item = I::Item;
fn next(&mut self) -> Option<Self::Item> {
self.iter.next()
}
}
impl<'iter, 'token: 'iter, I: Iterator<Item = Result<Token<'token>, Error>> + 'iter> Lexed<I> {
pub(super) fn peek(&mut self) -> Option<&I::Item> {
self.iter.peek()
}
pub(super) fn next_if_whitespace(&mut self) -> Option<Spanned<&'token [u8]>> {
if let Some(&Ok(Token::ComponentPart {
kind: ComponentKind::Whitespace,
value,
})) = self.peek()
{
self.next(); // consume
Some(value)
} else {
None
}
}
pub(super) fn next_if_not_whitespace(&mut self) -> Option<Spanned<&'token [u8]>> {
if let Some(&Ok(Token::ComponentPart {
kind: ComponentKind::NotWhitespace,
value,
})) = self.peek()
{
self.next();
Some(value)
} else {
None
}
}
pub(super) fn next_if_opening_bracket(&mut self) -> Option<Location> {
if let Some(&Ok(Token::Bracket {
kind: BracketKind::Opening,
location,
})) = self.peek()
{
self.next();
Some(location)
} else {
None
}
}
pub(super) fn peek_closing_bracket(&'iter mut self) -> Option<&'iter Location> {
if let Some(Ok(Token::Bracket {
kind: BracketKind::Closing,
location,
})) = self.peek()
{
Some(location)
} else {
None
}
}
pub(super) fn next_if_closing_bracket(&mut self) -> Option<Location> {
if let Some(&Ok(Token::Bracket {
kind: BracketKind::Closing,
location,
})) = self.peek()
{
self.next();
Some(location)
} else {
None
}
}
}
pub(super) enum Token<'a> {
Literal(Spanned<&'a [u8]>),
Bracket {
kind: BracketKind,
location: Location,
},
ComponentPart {
kind: ComponentKind,
value: Spanned<&'a [u8]>,
},
}
pub(super) enum BracketKind {
Opening,
Closing,
}
pub(super) enum ComponentKind {
Whitespace,
NotWhitespace,
}
fn attach_location<'item>(
iter: impl Iterator<Item = &'item u8>,
proc_span: proc_macro::Span,
) -> impl Iterator<Item = (&'item u8, Location)> {
let mut byte_pos = 0;
iter.map(move |byte| {
let location = Location {
byte: byte_pos,
proc_span,
};
byte_pos += 1;
(byte, location)
})
}
pub(super) fn lex<const VERSION: u8>(
mut input: &[u8],
proc_span: proc_macro::Span,
) -> Lexed<impl Iterator<Item = Result<Token<'_>, Error>>> {
assert!(version!(1..=2));
let mut depth: u32 = 0;
let mut iter = attach_location(input.iter(), proc_span).peekable();
let mut second_bracket_location = None;
let iter = iter::from_fn(move || {
if version!(..=1)
&& let Some(location) = second_bracket_location.take()
{
return Some(Ok(Token::Bracket {
kind: BracketKind::Opening,
location,
}));
}
Some(Ok(match iter.next()? {
(b'\\', backslash_loc) if version!(2..) => match iter.next() {
Some((b'\\' | b'[' | b']', char_loc)) => {
let char = &input[1..2];
input = &input[2..];
if depth == 0 {
Token::Literal(char.spanned(backslash_loc.to(char_loc)))
} else {
Token::ComponentPart {
kind: ComponentKind::NotWhitespace,
value: char.spanned(backslash_loc.to(char_loc)),
}
}
}
Some((_, loc)) => {
return Some(Err(loc.error("invalid escape sequence")));
}
None => {
return Some(Err(backslash_loc.error("unexpected end of input")));
}
},
(b'[', location) if version!(..=1) => {
if let Some((_, second_location)) = iter.next_if(|&(&byte, _)| byte == b'[') {
second_bracket_location = Some(second_location);
input = &input[2..];
} else {
depth += 1;
input = &input[1..];
}
Token::Bracket {
kind: BracketKind::Opening,
location,
}
}
(b'[', location) => {
depth += 1;
input = &input[1..];
Token::Bracket {
kind: BracketKind::Opening,
location,
}
}
(b']', location) if depth > 0 => {
depth -= 1;
input = &input[1..];
Token::Bracket {
kind: BracketKind::Closing,
location,
}
}
(_, start_location) if depth == 0 => {
let mut bytes = 1;
let mut end_location = start_location;
while let Some((_, location)) =
iter.next_if(|&(&byte, _)| !((version!(2..) && byte == b'\\') || byte == b'['))
{
end_location = location;
bytes += 1;
}
let value = &input[..bytes];
input = &input[bytes..];
Token::Literal(value.spanned(start_location.to(end_location)))
}
(byte, start_location) => {
let mut bytes = 1;
let mut end_location = start_location;
let is_whitespace = byte.is_ascii_whitespace();
while let Some((_, location)) = iter.next_if(|&(byte, _)| {
!matches!(byte, b'\\' | b'[' | b']')
&& is_whitespace == byte.is_ascii_whitespace()
}) {
end_location = location;
bytes += 1;
}
let value = &input[..bytes];
input = &input[bytes..];
Token::ComponentPart {
kind: if is_whitespace {
ComponentKind::Whitespace
} else {
ComponentKind::NotWhitespace
},
value: value.spanned(start_location.to(end_location)),
}
}
}))
});
Lexed {
iter: iter.peekable(),
}
}

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//! Parser for format descriptions.
macro_rules! version {
($range:expr) => {
$range.contains(&VERSION)
};
}
mod ast;
mod format_item;
mod lexer;
mod public;
pub(crate) fn parse_with_version(
version: Option<crate::FormatDescriptionVersion>,
s: &[u8],
proc_span: proc_macro::Span,
) -> Result<Vec<public::OwnedFormatItem>, crate::Error> {
match version {
Some(crate::FormatDescriptionVersion::V1) | None => parse::<1>(s, proc_span),
Some(crate::FormatDescriptionVersion::V2) => parse::<2>(s, proc_span),
}
}
fn parse<const VERSION: u8>(
s: &[u8],
proc_span: proc_macro::Span,
) -> Result<Vec<public::OwnedFormatItem>, crate::Error> {
let mut lexed = lexer::lex::<VERSION>(s, proc_span);
let ast = ast::parse::<_, VERSION>(&mut lexed);
let format_items = format_item::parse(ast);
Ok(format_items
.map(|res| res.map(Into::into))
.collect::<Result<_, _>>()?)
}
#[derive(Clone, Copy)]
struct Location {
byte: u32,
proc_span: proc_macro::Span,
}
impl Location {
fn to(self, end: Self) -> Span {
Span { start: self, end }
}
#[must_use = "this does not modify the original value"]
fn offset(&self, offset: u32) -> Self {
Self {
byte: self.byte + offset,
proc_span: self.proc_span,
}
}
fn error(self, message: &'static str) -> Error {
Error {
message,
_span: unused(Span {
start: self,
end: self,
}),
proc_span: self.proc_span,
}
}
}
#[derive(Clone, Copy)]
struct Span {
start: Location,
end: Location,
}
impl Span {
#[must_use = "this does not modify the original value"]
const fn shrink_to_start(&self) -> Self {
Self {
start: self.start,
end: self.start,
}
}
#[must_use = "this does not modify the original value"]
const fn shrink_to_end(&self) -> Self {
Self {
start: self.end,
end: self.end,
}
}
#[must_use = "this does not modify the original value"]
const fn shrink_to_before(&self, pos: u32) -> Self {
Self {
start: self.start,
end: Location {
byte: self.start.byte + pos - 1,
proc_span: self.start.proc_span,
},
}
}
#[must_use = "this does not modify the original value"]
fn shrink_to_after(&self, pos: u32) -> Self {
Self {
start: Location {
byte: self.start.byte + pos + 1,
proc_span: self.start.proc_span,
},
end: self.end,
}
}
fn error(self, message: &'static str) -> Error {
Error {
message,
_span: unused(self),
proc_span: self.start.proc_span,
}
}
}
#[derive(Clone, Copy)]
struct Spanned<T> {
value: T,
span: Span,
}
impl<T> core::ops::Deref for Spanned<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
&self.value
}
}
trait SpannedValue: Sized {
fn spanned(self, span: Span) -> Spanned<Self>;
}
impl<T> SpannedValue for T {
fn spanned(self, span: Span) -> Spanned<Self> {
Spanned { value: self, span }
}
}
struct Error {
message: &'static str,
_span: Unused<Span>,
proc_span: proc_macro::Span,
}
impl From<Error> for crate::Error {
fn from(error: Error) -> Self {
Self::Custom {
message: error.message.into(),
span_start: Some(error.proc_span),
span_end: Some(error.proc_span),
}
}
}
struct Unused<T>(core::marker::PhantomData<T>);
fn unused<T>(_: T) -> Unused<T> {
Unused(core::marker::PhantomData)
}

50
vendor/time-macros/src/format_description/public/component.rs vendored Normal file
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use proc_macro::{Ident, Span, TokenStream};
use super::modifier;
use crate::to_tokens::ToTokenStream;
macro_rules! declare_component {
($($name:ident)*) => {
pub(crate) enum Component {$(
$name(modifier::$name),
)*}
impl ToTokenStream for Component {
fn append_to(self, ts: &mut TokenStream) {
let mut mts = TokenStream::new();
let component = match self {$(
Self::$name(modifier) => {
modifier.append_to(&mut mts);
stringify!($name)
}
)*};
let component = Ident::new(component, Span::mixed_site());
quote_append! { ts
Component::#(component)(#S(mts))
}
}
}
};
}
declare_component! {
Day
Month
Ordinal
Weekday
WeekNumber
Year
Hour
Minute
Period
Second
Subsecond
OffsetHour
OffsetMinute
OffsetSecond
Ignore
UnixTimestamp
End
}

51
vendor/time-macros/src/format_description/public/mod.rs vendored Normal file
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mod component;
pub(super) mod modifier;
use proc_macro::TokenStream;
pub(crate) use self::component::Component;
use crate::to_tokens::ToTokenStream;
pub(crate) enum OwnedFormatItem {
Literal(Box<[u8]>),
Component(Component),
Compound(Box<[Self]>),
Optional(Box<Self>),
First(Box<[Self]>),
}
impl ToTokenStream for OwnedFormatItem {
fn append_to(self, ts: &mut TokenStream) {
match self {
Self::Literal(bytes) => quote_append! { ts
BorrowedFormatItem::Literal(#(Literal::byte_string(bytes.as_ref())))
},
Self::Component(component) => quote_append! { ts
BorrowedFormatItem::Component { 0: #S(component) }
},
Self::Compound(items) => {
let items = items
.into_vec()
.into_iter()
.map(|item| quote_! { #S(item), })
.collect::<TokenStream>();
quote_append! { ts
BorrowedFormatItem::Compound { 0: &[#S(items)] }
}
}
Self::Optional(item) => quote_append! { ts
BorrowedFormatItem::Optional { 0: &#S(*item) }
},
Self::First(items) => {
let items = items
.into_vec()
.into_iter()
.map(|item| quote_! { #S(item), })
.collect::<TokenStream>();
quote_append! { ts
BorrowedFormatItem::First { 0: &[#S(items)] }
}
}
}
}
}

277
vendor/time-macros/src/format_description/public/modifier.rs vendored Normal file
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use std::num::NonZero;
use proc_macro::{Delimiter, Group, Ident, Span, TokenStream, TokenTree};
use crate::to_tokens::{ToTokenStream, ToTokenTree};
macro_rules! to_tokens {
(
$(#[$struct_attr:meta])*
$struct_vis:vis struct $struct_name:ident {$(
$(#[$field_attr:meta])*
$field_vis:vis $field_name:ident : $field_ty:ty = $default:pat
),* $(,)?}
) => {
$(#[$struct_attr])*
$struct_vis struct $struct_name {$(
$(#[$field_attr])*
$field_vis $field_name: $field_ty
),*}
impl ToTokenTree for $struct_name {
fn into_token_tree(self) -> TokenTree {
let Self {$($field_name),*} = self;
#[allow(clippy::redundant_pattern_matching)]
if matches!(($(&$field_name,)*), ($($default,)*)) {
return TokenTree::Group(Group::new(
Delimiter::None,
quote_! { $struct_name::default() }
));
}
let mut tokens = quote_! {
$struct_name::default()
};
$(
#[allow(clippy::redundant_pattern_matching)]
if !matches!($field_name, $default) {
let method_name = Ident::new(concat!("with_", stringify!($field_name)), Span::mixed_site());
quote_append!(tokens .#(method_name)(#S($field_name)));
}
)*
TokenTree::Group(Group::new(
Delimiter::Brace,
tokens,
))
}
}
};
(
$(#[$enum_attr:meta])*
$enum_vis:vis enum $enum_name:ident {$(
$(#[$variant_attr:meta])*
$variant_name:ident
),+ $(,)?}
) => {
$(#[$enum_attr])*
$enum_vis enum $enum_name {$(
$(#[$variant_attr])*
$variant_name
),+}
impl ToTokenStream for $enum_name {
fn append_to(self, ts: &mut TokenStream) {
quote_append! { ts
$enum_name::
};
let name = match self {
$(Self::$variant_name => stringify!($variant_name)),+
};
ts.extend([TokenTree::Ident(Ident::new(name, Span::mixed_site()))]);
}
}
}
}
to_tokens! {
pub(crate) struct Day {
pub(crate) padding: Padding = Padding::Zero,
}
}
to_tokens! {
pub(crate) enum MonthRepr {
Numerical,
Long,
Short,
}
}
to_tokens! {
pub(crate) struct Month {
pub(crate) padding: Padding = Padding::Zero,
pub(crate) repr: MonthRepr = MonthRepr::Numerical,
pub(crate) case_sensitive: bool = true,
}
}
to_tokens! {
pub(crate) struct Ordinal {
pub(crate) padding: Padding = Padding::Zero,
}
}
to_tokens! {
pub(crate) enum WeekdayRepr {
Short,
Long,
Sunday,
Monday,
}
}
to_tokens! {
pub(crate) struct Weekday {
pub(crate) repr: WeekdayRepr = WeekdayRepr::Long,
pub(crate) one_indexed: bool = true,
pub(crate) case_sensitive: bool = true,
}
}
to_tokens! {
pub(crate) enum WeekNumberRepr {
Iso,
Sunday,
Monday,
}
}
to_tokens! {
pub(crate) struct WeekNumber {
pub(crate) padding: Padding = Padding::Zero,
pub(crate) repr: WeekNumberRepr = WeekNumberRepr::Iso,
}
}
to_tokens! {
pub(crate) enum YearRepr {
Full,
Century,
LastTwo,
}
}
to_tokens! {
pub(crate) enum YearRange {
Standard,
Extended,
}
}
to_tokens! {
pub(crate) struct Year {
pub(crate) padding: Padding = Padding::Zero,
pub(crate) repr: YearRepr = YearRepr::Full,
pub(crate) range: YearRange = YearRange::Extended,
pub(crate) iso_week_based: bool = false,
pub(crate) sign_is_mandatory: bool = false,
}
}
to_tokens! {
pub(crate) struct Hour {
pub(crate) padding: Padding = Padding::Zero,
pub(crate) is_12_hour_clock: bool = false,
}
}
to_tokens! {
pub(crate) struct Minute {
pub(crate) padding: Padding = Padding::Zero,
}
}
to_tokens! {
pub(crate) struct Period {
pub(crate) is_uppercase: bool = true,
pub(crate) case_sensitive: bool = true,
}
}
to_tokens! {
pub(crate) struct Second {
pub(crate) padding: Padding = Padding::Zero,
}
}
to_tokens! {
pub(crate) enum SubsecondDigits {
One,
Two,
Three,
Four,
Five,
Six,
Seven,
Eight,
Nine,
OneOrMore,
}
}
to_tokens! {
pub(crate) struct Subsecond {
pub(crate) digits: SubsecondDigits = SubsecondDigits::OneOrMore,
}
}
to_tokens! {
pub(crate) struct OffsetHour {
pub(crate) sign_is_mandatory: bool = false,
pub(crate) padding: Padding = Padding::Zero,
}
}
to_tokens! {
pub(crate) struct OffsetMinute {
pub(crate) padding: Padding = Padding::Zero,
}
}
to_tokens! {
pub(crate) struct OffsetSecond {
pub(crate) padding: Padding = Padding::Zero,
}
}
to_tokens! {
pub(crate) enum Padding {
Space,
Zero,
None,
}
}
pub(crate) struct Ignore {
pub(crate) count: NonZero<u16>,
}
impl ToTokenTree for Ignore {
fn into_token_tree(self) -> TokenTree {
quote_group! {{
Ignore::count(#(self.count))
}}
}
}
to_tokens! {
pub(crate) enum UnixTimestampPrecision {
Second,
Millisecond,
Microsecond,
Nanosecond,
}
}
to_tokens! {
pub(crate) struct UnixTimestamp {
pub(crate) precision: UnixTimestampPrecision = UnixTimestampPrecision::Second,
pub(crate) sign_is_mandatory: bool = false,
}
}
to_tokens! {
pub(crate) enum TrailingInput {
Prohibit,
Discard,
}
}
to_tokens! {
pub(crate) struct End {
pub(crate) trailing_input: TrailingInput = TrailingInput::Prohibit,
}
}

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#[cfg(any(feature = "formatting", feature = "parsing"))]
mod string;
use std::iter::Peekable;
use std::str::FromStr;
use num_conv::prelude::*;
use proc_macro::{Span, TokenTree, token_stream};
use time_core::util::{days_in_year, is_leap_year};
use crate::Error;
#[cfg(any(feature = "formatting", feature = "parsing"))]
pub(crate) fn get_string_literal(
mut tokens: impl Iterator<Item = TokenTree>,
) -> Result<(Span, Vec<u8>), Error> {
match (tokens.next(), tokens.next()) {
(Some(TokenTree::Literal(literal)), None) => string::parse(&literal),
(Some(tree), None) => Err(Error::ExpectedString {
span_start: Some(tree.span()),
span_end: Some(tree.span()),
}),
(_, Some(tree)) => Err(Error::UnexpectedToken { tree }),
(None, None) => Err(Error::ExpectedString {
span_start: None,
span_end: None,
}),
}
}
pub(crate) fn consume_number<T: FromStr>(
component_name: &'static str,
chars: &mut Peekable<token_stream::IntoIter>,
) -> Result<(Span, T), Error> {
let (span, digits) = match chars.next() {
Some(TokenTree::Literal(literal)) => (literal.span(), literal.to_string()),
Some(tree) => return Err(Error::UnexpectedToken { tree }),
None => return Err(Error::UnexpectedEndOfInput),
};
if let Ok(value) = digits.replace('_', "").parse() {
Ok((span, value))
} else {
Err(Error::InvalidComponent {
name: component_name,
value: digits,
span_start: Some(span),
span_end: Some(span),
})
}
}
pub(crate) fn consume_any_ident(
idents: &[&str],
chars: &mut Peekable<token_stream::IntoIter>,
) -> Result<Span, Error> {
match chars.peek() {
Some(TokenTree::Ident(char)) if idents.contains(&char.to_string().as_str()) => {
let ret = Ok(char.span());
drop(chars.next());
ret
}
Some(tree) => Err(Error::UnexpectedToken { tree: tree.clone() }),
None => Err(Error::UnexpectedEndOfInput),
}
}
pub(crate) fn consume_punct(
c: char,
chars: &mut Peekable<token_stream::IntoIter>,
) -> Result<Span, Error> {
match chars.peek() {
Some(TokenTree::Punct(punct)) if *punct == c => {
let ret = Ok(punct.span());
drop(chars.next());
ret
}
Some(tree) => Err(Error::UnexpectedToken { tree: tree.clone() }),
None => Err(Error::UnexpectedEndOfInput),
}
}
fn jan_weekday(year: i32, ordinal: i32) -> u8 {
macro_rules! div_floor {
($a:expr, $b:expr) => {{
let (_quotient, _remainder) = ($a / $b, $a % $b);
if (_remainder > 0 && $b < 0) || (_remainder < 0 && $b > 0) {
_quotient - 1
} else {
_quotient
}
}};
}
let adj_year = year - 1;
(ordinal + adj_year + div_floor!(adj_year, 4) - div_floor!(adj_year, 100)
+ div_floor!(adj_year, 400)
+ 6)
.rem_euclid(7)
.cast_unsigned()
.truncate()
}
pub(crate) fn days_in_year_month(year: i32, month: u8) -> u8 {
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month.extend::<usize>() - 1]
+ u8::from(month == 2 && is_leap_year(year))
}
pub(crate) fn ywd_to_yo(year: i32, week: u8, iso_weekday_number: u8) -> (i32, u16) {
let (ordinal, overflow) = (u16::from(week) * 7 + u16::from(iso_weekday_number))
.overflowing_sub(u16::from(jan_weekday(year, 4)) + 4);
if overflow || ordinal == 0 {
return (year - 1, (ordinal.wrapping_add(days_in_year(year - 1))));
}
let days_in_cur_year = days_in_year(year);
if ordinal > days_in_cur_year {
(year + 1, ordinal - days_in_cur_year)
} else {
(year, ordinal)
}
}
pub(crate) fn ymd_to_yo(year: i32, month: u8, day: u8) -> (i32, u16) {
let ordinal = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334]
[month.extend::<usize>() - 1]
+ u16::from(month > 2 && is_leap_year(year));
(year, ordinal + u16::from(day))
}

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vendor/time-macros/src/helpers/string.rs vendored Normal file
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use std::ops::{Index, RangeFrom};
use proc_macro::Span;
use crate::Error;
pub(crate) fn parse(token: &proc_macro::Literal) -> Result<(Span, Vec<u8>), Error> {
let span = token.span();
let repr = token.to_string();
match repr.as_bytes() {
[b'"', ..] => Ok((span, parse_lit_str_cooked(&repr[1..]))),
[b'b', b'"', rest @ ..] => Ok((span, parse_lit_byte_str_cooked(rest))),
[b'r', rest @ ..] | [b'b', b'r', rest @ ..] => Ok((span, parse_lit_str_raw(rest))),
_ => Err(Error::ExpectedString {
span_start: Some(span),
span_end: Some(span),
}),
}
}
fn byte(s: impl AsRef<[u8]>, idx: usize) -> u8 {
s.as_ref().get(idx).copied().unwrap_or_default()
}
fn parse_lit_str_cooked(mut s: &str) -> Vec<u8> {
let mut content = String::new();
'outer: loop {
let ch = match byte(s, 0) {
b'"' => break,
b'\\' => {
let b = byte(s, 1);
s = &s[2..];
match b {
b'x' => {
let (byte, rest) = backslash_x(s);
s = rest;
char::from_u32(u32::from(byte)).expect("byte was just validated")
}
b'u' => {
let (chr, rest) = backslash_u(s);
s = rest;
chr
}
b'n' => '\n',
b'r' => '\r',
b't' => '\t',
b'\\' => '\\',
b'0' => '\0',
b'\'' => '\'',
b'"' => '"',
b'\r' | b'\n' => loop {
let ch = s.chars().next().unwrap_or_default();
if ch.is_whitespace() {
s = &s[ch.len_utf8()..];
} else {
continue 'outer;
}
},
_ => bug!("invalid escape"),
}
}
b'\r' => {
// bare CR not permitted
s = &s[2..];
'\n'
}
_ => {
let ch = s.chars().next().unwrap_or_default();
s = &s[ch.len_utf8()..];
ch
}
};
content.push(ch);
}
content.into_bytes()
}
fn parse_lit_str_raw(s: &[u8]) -> Vec<u8> {
let mut pounds = 0;
while byte(s, pounds) == b'#' {
pounds += 1;
}
let close = s
.iter()
.rposition(|&b| b == b'"')
.expect("had a string without trailing \"");
s[pounds + 1..close].to_owned()
}
fn parse_lit_byte_str_cooked(mut v: &[u8]) -> Vec<u8> {
let mut out = Vec::new();
'outer: loop {
let byte = match byte(v, 0) {
b'"' => break,
b'\\' => {
let b = byte(v, 1);
v = &v[2..];
match b {
b'x' => {
let (byte, rest) = backslash_x(v);
v = rest;
byte
}
b'n' => b'\n',
b'r' => b'\r',
b't' => b'\t',
b'\\' => b'\\',
b'0' => b'\0',
b'\'' => b'\'',
b'"' => b'"',
b'\r' | b'\n' => loop {
let byte = byte(v, 0);
let ch = char::from_u32(u32::from(byte)).expect("invalid byte");
if ch.is_whitespace() {
v = &v[1..];
} else {
continue 'outer;
}
},
_ => bug!("invalid escape"),
}
}
b'\r' => {
// bare CR not permitted
v = &v[2..];
b'\n'
}
b => {
v = &v[1..];
b
}
};
out.push(byte);
}
out
}
fn backslash_x<S>(s: &S) -> (u8, &S)
where
S: Index<RangeFrom<usize>, Output = S> + AsRef<[u8]> + ?Sized,
{
let mut ch = 0;
let b0 = byte(s, 0);
let b1 = byte(s, 1);
ch += 0x10 * (b0 - b'0');
ch += match b1 {
b'0'..=b'9' => b1 - b'0',
b'a'..=b'f' => 10 + (b1 - b'a'),
b'A'..=b'F' => 10 + (b1 - b'A'),
_ => bug!("invalid hex escape"),
};
(ch, &s[2..])
}
fn backslash_u(mut s: &str) -> (char, &str) {
s = &s[1..];
let mut ch = 0;
let mut digits = 0;
loop {
let b = byte(s, 0);
let digit = match b {
b'0'..=b'9' => b - b'0',
b'a'..=b'f' => 10 + b - b'a',
b'A'..=b'F' => 10 + b - b'A',
b'_' if digits > 0 => {
s = &s[1..];
continue;
}
b'}' if digits != 0 => break,
_ => bug!("invalid unicode escape"),
};
ch *= 0x10;
ch += u32::from(digit);
digits += 1;
s = &s[1..];
}
s = &s[1..];
(
char::from_u32(ch).expect("invalid unicode escape passed by compiler"),
s,
)
}

280
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#![allow(
clippy::missing_const_for_fn,
clippy::std_instead_of_core,
clippy::std_instead_of_alloc,
clippy::alloc_instead_of_core,
reason = "irrelevant for proc macros"
)]
#![allow(
clippy::missing_docs_in_private_items,
missing_docs,
reason = "may be removed eventually"
)]
#[allow(
unused_macros,
reason = "may not be used for all feature flag combinations"
)]
macro_rules! bug {
() => { compile_error!("provide an error message to help fix a possible bug") };
($descr:literal $($rest:tt)?) => {
unreachable!(concat!("internal error: ", $descr) $($rest)?)
}
}
#[macro_use]
mod quote;
mod date;
mod datetime;
mod error;
#[cfg(any(feature = "formatting", feature = "parsing"))]
mod format_description;
mod helpers;
mod offset;
#[cfg(all(feature = "serde", any(feature = "formatting", feature = "parsing")))]
mod serde_format_description;
mod time;
mod to_tokens;
mod utc_datetime;
#[cfg(any(feature = "formatting", feature = "parsing"))]
use std::iter::Peekable;
#[cfg(all(feature = "serde", any(feature = "formatting", feature = "parsing")))]
use proc_macro::Delimiter;
use proc_macro::TokenStream;
#[cfg(any(feature = "formatting", feature = "parsing"))]
use proc_macro::TokenTree;
use self::error::Error;
macro_rules! impl_macros {
($($name:ident)*) => {$(
#[proc_macro]
pub fn $name(input: TokenStream) -> TokenStream {
use crate::to_tokens::ToTokenStream;
let mut iter = input.into_iter().peekable();
match $name::parse(&mut iter) {
Ok(value) => match iter.peek() {
Some(tree) => Error::UnexpectedToken { tree: tree.clone() }.to_compile_error(),
None => quote_! { const { #S(value.into_token_stream()) } },
},
Err(err) => err.to_compile_error(),
}
}
)*};
}
impl_macros![date datetime utc_datetime offset time];
#[cfg(any(feature = "formatting", feature = "parsing"))]
type PeekableTokenStreamIter = Peekable<proc_macro::token_stream::IntoIter>;
#[cfg(any(feature = "formatting", feature = "parsing"))]
enum FormatDescriptionVersion {
V1,
V2,
}
#[cfg(any(feature = "formatting", feature = "parsing"))]
fn parse_format_description_version<const NO_EQUALS_IS_MOD_NAME: bool>(
iter: &mut PeekableTokenStreamIter,
) -> Result<Option<FormatDescriptionVersion>, Error> {
let end_of_input_err = || {
if NO_EQUALS_IS_MOD_NAME {
Error::UnexpectedEndOfInput
} else {
Error::ExpectedString {
span_start: None,
span_end: None,
}
}
};
let version_ident = match iter.peek().ok_or_else(end_of_input_err)? {
version @ TokenTree::Ident(ident) if ident.to_string() == "version" => {
let version_ident = version.clone();
iter.next(); // consume `version`
version_ident
}
_ => return Ok(None),
};
match iter.peek() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '=' => iter.next(),
_ if NO_EQUALS_IS_MOD_NAME => {
// Push the `version` ident to the front of the iterator.
*iter = std::iter::once(version_ident)
.chain(iter.clone())
.collect::<TokenStream>()
.into_iter()
.peekable();
return Ok(None);
}
Some(token) => {
return Err(Error::Custom {
message: "expected `=`".into(),
span_start: Some(token.span()),
span_end: Some(token.span()),
});
}
None => {
return Err(Error::Custom {
message: "expected `=`".into(),
span_start: None,
span_end: None,
});
}
};
let version_literal = match iter.next() {
Some(TokenTree::Literal(literal)) => literal,
Some(token) => {
return Err(Error::Custom {
message: "expected 1 or 2".into(),
span_start: Some(token.span()),
span_end: Some(token.span()),
});
}
None => {
return Err(Error::Custom {
message: "expected 1 or 2".into(),
span_start: None,
span_end: None,
});
}
};
let version = match version_literal.to_string().as_str() {
"1" => FormatDescriptionVersion::V1,
"2" => FormatDescriptionVersion::V2,
_ => {
return Err(Error::Custom {
message: "invalid format description version".into(),
span_start: Some(version_literal.span()),
span_end: Some(version_literal.span()),
});
}
};
helpers::consume_punct(',', iter)?;
Ok(Some(version))
}
#[cfg(all(feature = "serde", any(feature = "formatting", feature = "parsing")))]
fn parse_visibility(iter: &mut PeekableTokenStreamIter) -> Result<TokenStream, Error> {
let mut visibility = match iter.peek().ok_or(Error::UnexpectedEndOfInput)? {
pub_ident @ TokenTree::Ident(ident) if ident.to_string() == "pub" => {
let visibility = quote_! { #(pub_ident.clone()) };
iter.next(); // consume `pub`
visibility
}
_ => return Ok(quote_! {}),
};
match iter.peek().ok_or(Error::UnexpectedEndOfInput)? {
group @ TokenTree::Group(path) if path.delimiter() == Delimiter::Parenthesis => {
visibility.extend(std::iter::once(group.clone()));
iter.next(); // consume parentheses and path
}
_ => {}
}
Ok(visibility)
}
#[cfg(any(feature = "formatting", feature = "parsing"))]
#[proc_macro]
pub fn format_description(input: TokenStream) -> TokenStream {
(|| {
let mut input = input.into_iter().peekable();
let version = parse_format_description_version::<false>(&mut input)?;
let (span, string) = helpers::get_string_literal(input)?;
let items = format_description::parse_with_version(version, &string, span)?;
Ok(quote_! {
const {
use ::time::format_description::{*, modifier::*};
&[#S(
items
.into_iter()
.map(|item| quote_! { #S(item), })
.collect::<TokenStream>()
)] as StaticFormatDescription
}
})
})()
.unwrap_or_else(|err: Error| err.to_compile_error())
}
#[cfg(all(feature = "serde", any(feature = "formatting", feature = "parsing")))]
#[proc_macro]
pub fn serde_format_description(input: TokenStream) -> TokenStream {
(|| {
let mut tokens = input.into_iter().peekable();
// First, the optional format description version.
let version = parse_format_description_version::<true>(&mut tokens)?;
// Then, the visibility of the module.
let visibility = parse_visibility(&mut tokens)?;
// Next, an identifier (the desired module name)
let mod_name = match tokens.next() {
Some(TokenTree::Ident(ident)) => Ok(ident),
Some(tree) => Err(Error::UnexpectedToken { tree }),
None => Err(Error::UnexpectedEndOfInput),
}?;
// Followed by a comma
helpers::consume_punct(',', &mut tokens)?;
// Then, the type to create serde serializers for (e.g., `OffsetDateTime`).
let formattable = match tokens.next() {
Some(tree @ TokenTree::Ident(_)) => Ok(tree),
Some(tree) => Err(Error::UnexpectedToken { tree }),
None => Err(Error::UnexpectedEndOfInput),
}?;
// Another comma
helpers::consume_punct(',', &mut tokens)?;
// We now have two options. The user can either provide a format description as a string or
// they can provide a path to a format description. If the latter, all remaining tokens are
// assumed to be part of the path.
let (format, format_description_display) = match tokens.peek() {
// string literal
Some(TokenTree::Literal(_)) => {
let (span, format_string) = helpers::get_string_literal(tokens)?;
let items = format_description::parse_with_version(version, &format_string, span)?;
let items: TokenStream = items
.into_iter()
.map(|item| quote_! { #S(item), })
.collect();
let items = quote_! {
const {
use ::time::format_description::{*, modifier::*};
&[#S(items)] as StaticFormatDescription
}
};
(items, String::from_utf8_lossy(&format_string).into_owned())
}
// path
Some(_) => {
let tokens = tokens.collect::<TokenStream>();
let tokens_string = tokens.to_string();
(tokens, tokens_string)
}
None => return Err(Error::UnexpectedEndOfInput),
};
Ok(serde_format_description::build(
visibility,
mod_name,
formattable,
format,
format_description_display,
))
})()
.unwrap_or_else(|err: Error| err.to_compile_error_standalone())
}

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use std::iter::Peekable;
use proc_macro::{Span, TokenStream, token_stream};
use time_core::convert::*;
use crate::Error;
use crate::helpers::{consume_any_ident, consume_number, consume_punct};
use crate::to_tokens::ToTokenStream;
pub(crate) struct Offset {
pub(crate) hours: i8,
pub(crate) minutes: i8,
pub(crate) seconds: i8,
}
pub(crate) fn parse(chars: &mut Peekable<token_stream::IntoIter>) -> Result<Offset, Error> {
if consume_any_ident(&["utc", "UTC"], chars).is_ok() {
return Ok(Offset {
hours: 0,
minutes: 0,
seconds: 0,
});
}
let sign = if consume_punct('+', chars).is_ok() {
1
} else if consume_punct('-', chars).is_ok() {
-1
} else if let Some(tree) = chars.next() {
return Err(Error::UnexpectedToken { tree });
} else {
return Err(Error::MissingComponent {
name: "sign",
span_start: None,
span_end: None,
});
};
let (hours_span, hours) = consume_number::<i8>("hour", chars)?;
let (mut minutes_span, mut minutes) = (Span::mixed_site(), 0);
let (mut seconds_span, mut seconds) = (Span::mixed_site(), 0);
if consume_punct(':', chars).is_ok() {
let min = consume_number::<i8>("minute", chars)?;
minutes_span = min.0;
minutes = min.1;
if consume_punct(':', chars).is_ok() {
let sec = consume_number::<i8>("second", chars)?;
seconds_span = sec.0;
seconds = sec.1;
}
}
if hours > 25 {
Err(Error::InvalidComponent {
name: "hour",
value: hours.to_string(),
span_start: Some(hours_span.start()),
span_end: Some(hours_span.end()),
})
} else if minutes >= Minute::per_t(Hour) {
Err(Error::InvalidComponent {
name: "minute",
value: minutes.to_string(),
span_start: Some(minutes_span.start()),
span_end: Some(minutes_span.end()),
})
} else if seconds >= Second::per_t(Minute) {
Err(Error::InvalidComponent {
name: "second",
value: seconds.to_string(),
span_start: Some(seconds_span.start()),
span_end: Some(seconds_span.end()),
})
} else {
Ok(Offset {
hours: sign * hours,
minutes: sign * minutes,
seconds: sign * seconds,
})
}
}
impl ToTokenStream for Offset {
fn append_to(self, ts: &mut TokenStream) {
quote_append! { ts
unsafe {
::time::UtcOffset::__from_hms_unchecked(
#(self.hours),
#(self.minutes),
#(self.seconds),
)
}
}
}
}

145
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macro_rules! quote_ {
() => (proc_macro::TokenStream::new());
($($x:tt)*) => {{
use proc_macro::*;
let mut ts = TokenStream::new();
let ts_mut = &mut ts;
quote_inner!(ts_mut $($x)*);
ts
}};
}
macro_rules! quote_append {
($ts:ident $($x:tt)*) => {{
use proc_macro::*;
quote_inner!($ts $($x)*);
}};
}
macro_rules! quote_group {
({ $($x:tt)* }) => {{
use proc_macro::*;
TokenTree::Group(Group::new(
Delimiter::Brace,
quote_!($($x)*)
))
}};
}
macro_rules! sym {
($ts:ident $x:tt $y:tt) => {
$ts.extend([
TokenTree::from(Punct::new($x, Spacing::Joint)),
TokenTree::from(Punct::new($y, Spacing::Alone)),
]);
};
($ts:ident $x:tt) => {
$ts.extend([TokenTree::from(Punct::new($x, Spacing::Alone))]);
};
}
#[allow(unused_macro_rules)] // Varies by feature flag combination.
macro_rules! quote_inner {
// Base case
($ts:ident) => {};
// Single or double symbols
($ts:ident :: $($tail:tt)*) => { sym!($ts ':' ':'); quote_inner!($ts $($tail)*); };
($ts:ident : $($tail:tt)*) => { sym!($ts ':'); quote_inner!($ts $($tail)*); };
($ts:ident = $($tail:tt)*) => { sym!($ts '='); quote_inner!($ts $($tail)*); };
($ts:ident ; $($tail:tt)*) => { sym!($ts ';'); quote_inner!($ts $($tail)*); };
($ts:ident , $($tail:tt)*) => { sym!($ts ','); quote_inner!($ts $($tail)*); };
($ts:ident . $($tail:tt)*) => { sym!($ts '.'); quote_inner!($ts $($tail)*); };
($ts:ident & $($tail:tt)*) => { sym!($ts '&'); quote_inner!($ts $($tail)*); };
($ts:ident < $($tail:tt)*) => { sym!($ts '<'); quote_inner!($ts $($tail)*); };
($ts:ident >> $($tail:tt)*) => { sym!($ts '>' '>'); quote_inner!($ts $($tail)*); };
($ts:ident > $($tail:tt)*) => { sym!($ts '>'); quote_inner!($ts $($tail)*); };
($ts:ident -> $($tail:tt)*) => { sym!($ts '-' '>'); quote_inner!($ts $($tail)*); };
($ts:ident ? $($tail:tt)*) => { sym!($ts '?'); quote_inner!($ts $($tail)*); };
($ts:ident ! $($tail:tt)*) => { sym!($ts '!'); quote_inner!($ts $($tail)*); };
($ts:ident | $($tail:tt)*) => { sym!($ts '|'); quote_inner!($ts $($tail)*); };
($ts:ident * $($tail:tt)*) => { sym!($ts '*'); quote_inner!($ts $($tail)*); };
($ts:ident + $($tail:tt)*) => { sym!($ts '+'); quote_inner!($ts $($tail)*); };
// Identifier
($ts:ident $i:ident $($tail:tt)*) => {
$ts.extend([TokenTree::from(Ident::new(
&stringify!($i),
Span::mixed_site(),
))]);
quote_inner!($ts $($tail)*);
};
// Literal
($ts:ident 0 $($tail:tt)*) => {
$ts.extend([TokenTree::from(Literal::usize_unsuffixed(0))]);
quote_inner!($ts $($tail)*);
};
($ts:ident $l:literal $($tail:tt)*) => {
$ts.extend([TokenTree::from(Literal::string(&$l))]);
quote_inner!($ts $($tail)*);
};
// Lifetime
($ts:ident $l:lifetime $($tail:tt)*) => {
$ts.extend([
TokenTree::from(
Punct::new('\'', Spacing::Joint)
),
TokenTree::from(Ident::new(
stringify!($l).trim_start_matches(|c| c == '\''),
Span::mixed_site(),
)),
]);
quote_inner!($ts $($tail)*);
};
// Attribute
($ts:ident #[$($inner:tt)*] $($tail:tt)*) => {
$ts.extend([
TokenTree::from(
Punct::new('#', Spacing::Alone)
),
TokenTree::Group(Group::new(
Delimiter::Bracket,
quote_!($($inner)*)
)),
]);
quote_inner!($ts $($tail)*);
};
// Groups
($ts:ident ($($inner:tt)*) $($tail:tt)*) => {
$ts.extend([TokenTree::Group(Group::new(
Delimiter::Parenthesis,
quote_!($($inner)*)
))]);
quote_inner!($ts $($tail)*);
};
($ts:ident [$($inner:tt)*] $($tail:tt)*) => {
$ts.extend([TokenTree::Group(Group::new(
Delimiter::Bracket,
quote_!($($inner)*)
))]);
quote_inner!($ts $($tail)*);
};
($ts:ident {$($inner:tt)*} $($tail:tt)*) => {
$ts.extend([TokenTree::Group(Group::new(
Delimiter::Brace,
quote_!($($inner)*)
))]);
quote_inner!($ts $($tail)*);
};
// Interpolated values
// TokenTree by default
($ts:ident #($e:expr) $($tail:tt)*) => {
$ts.extend([$crate::to_tokens::ToTokenTree::into_token_tree($e)]);
quote_inner!($ts $($tail)*);
};
// Allow a TokenStream by request. It's more expensive, so avoid if possible.
($ts:ident #S($e:expr) $($tail:tt)*) => {
$crate::to_tokens::ToTokenStream::append_to($e, $ts);
quote_inner!($ts $($tail)*);
};
}

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use proc_macro::{Ident, TokenStream, TokenTree};
pub(crate) fn build(
visibility: TokenStream,
mod_name: Ident,
ty: TokenTree,
format: TokenStream,
format_description_display: String,
) -> TokenStream {
let ty_s = &*ty.to_string();
let visitor = if cfg!(feature = "parsing") {
quote_! {
pub(super) struct Visitor;
pub(super) struct OptionVisitor;
impl<'a> ::serde::de::Visitor<'a> for Visitor {
type Value = __TimeSerdeType;
fn expecting(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
write!(
f,
concat!(
"a(n) `",
#(ty_s),
"` in the format \"{}\"",
),
#(format_description_display.as_str())
)
}
fn visit_str<E: ::serde::de::Error>(
self,
value: &str
) -> Result<__TimeSerdeType, E> {
__TimeSerdeType::parse(value, &description()).map_err(E::custom)
}
}
impl<'a> ::serde::de::Visitor<'a> for OptionVisitor {
type Value = Option<__TimeSerdeType>;
fn expecting(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
write!(
f,
concat!(
"an `Option<",
#(ty_s),
">` in the format \"{}\"",
),
#(format_description_display.as_str())
)
}
fn visit_some<D: ::serde::de::Deserializer<'a>>(
self,
deserializer: D
) -> Result<Option<__TimeSerdeType>, D::Error> {
deserializer
.deserialize_str(Visitor)
.map(Some)
}
fn visit_none<E: ::serde::de::Error>(
self
) -> Result<Option<__TimeSerdeType>, E> {
Ok(None)
}
}
}
} else {
quote_!()
};
let serialize_primary = if cfg!(feature = "formatting") {
quote_! {
pub fn serialize<S: ::serde::Serializer>(
datetime: &__TimeSerdeType,
serializer: S,
) -> Result<S::Ok, S::Error> {
use ::serde::Serialize;
datetime
.format(&description())
.map_err(::time::error::Format::into_invalid_serde_value::<S>)?
.serialize(serializer)
}
}
} else {
quote_!()
};
let deserialize_primary = if cfg!(feature = "parsing") {
quote_! {
pub fn deserialize<'a, D: ::serde::Deserializer<'a>>(
deserializer: D
) -> Result<__TimeSerdeType, D::Error> {
use ::serde::Deserialize;
deserializer.deserialize_str(Visitor)
}
}
} else {
quote_!()
};
let serialize_option = if cfg!(feature = "formatting") {
quote_! {
#[expect(clippy::ref_option)]
pub fn serialize<S: ::serde::Serializer>(
option: &Option<__TimeSerdeType>,
serializer: S,
) -> Result<S::Ok, S::Error> {
use ::serde::Serialize;
option.map(|datetime| datetime.format(&description()))
.transpose()
.map_err(::time::error::Format::into_invalid_serde_value::<S>)?
.serialize(serializer)
}
}
} else {
quote_!()
};
let deserialize_option = if cfg!(feature = "parsing") {
quote_! {
pub fn deserialize<'a, D: ::serde::Deserializer<'a>>(
deserializer: D
) -> Result<Option<__TimeSerdeType>, D::Error> {
use ::serde::Deserialize;
deserializer.deserialize_option(OptionVisitor)
}
}
} else {
quote_!()
};
let deserialize_option_imports = if cfg!(feature = "parsing") {
quote_! {
use super::__hygiene::{OptionVisitor, Visitor};
}
} else {
quote_!()
};
let fd_traits = match (cfg!(feature = "formatting"), cfg!(feature = "parsing")) {
(false, false) => {
bug!("serde_format_description::build called without formatting or parsing enabled")
}
(false, true) => quote_! { ::time::parsing::Parsable },
(true, false) => quote_! { ::time::formatting::Formattable },
(true, true) => quote_! { ::time::formatting::Formattable + ::time::parsing::Parsable },
};
quote_! {
#S(visibility) mod #(mod_name) {
use super::*;
// TODO Remove the prefix, forcing the user to import the type themself. This must be
// done in a breaking change.
use ::time::#(ty) as __TimeSerdeType;
#[expect(clippy::pub_use)]
pub use self::__hygiene::*;
const fn description() -> impl #S(fd_traits) {
#S(format)
}
mod __hygiene {
use super::{description, __TimeSerdeType};
#S(visitor)
#S(serialize_primary)
#S(deserialize_primary)
}
// While technically public, this is effectively the same visibility as the enclosing
// module, which has its visibility controlled by the user.
pub mod option {
use super::{description, __TimeSerdeType};
#S(deserialize_option_imports)
#S(serialize_option)
#S(deserialize_option)
}
}
}
}

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use std::iter::Peekable;
use proc_macro::{Span, TokenStream, token_stream};
use time_core::convert::*;
use crate::Error;
use crate::helpers::{consume_any_ident, consume_number, consume_punct};
use crate::to_tokens::ToTokenStream;
enum Period {
Am,
Pm,
_24,
}
pub(crate) struct Time {
pub(crate) hour: u8,
pub(crate) minute: u8,
pub(crate) second: u8,
pub(crate) nanosecond: u32,
}
pub(crate) fn parse(chars: &mut Peekable<token_stream::IntoIter>) -> Result<Time, Error> {
fn consume_period(chars: &mut Peekable<token_stream::IntoIter>) -> (Option<Span>, Period) {
if let Ok(span) = consume_any_ident(&["am", "AM"], chars) {
(Some(span), Period::Am)
} else if let Ok(span) = consume_any_ident(&["pm", "PM"], chars) {
(Some(span), Period::Pm)
} else {
(None, Period::_24)
}
}
let (hour_span, hour) = consume_number("hour", chars)?;
let ((minute_span, minute), (second_span, second), (period_span, period)) =
match consume_period(chars) {
// Nothing but the 12-hour clock hour and AM/PM
(period_span @ Some(_), period) => (
(Span::mixed_site(), 0),
(Span::mixed_site(), 0.),
(period_span, period),
),
(None, _) => {
consume_punct(':', chars)?;
let (minute_span, minute) = consume_number::<u8>("minute", chars)?;
let (second_span, second): (_, f64) = if consume_punct(':', chars).is_ok() {
consume_number("second", chars)?
} else {
(Span::mixed_site(), 0.)
};
let (period_span, period) = consume_period(chars);
(
(minute_span, minute),
(second_span, second),
(period_span, period),
)
}
};
let hour = match (hour, period) {
(0, Period::Am | Period::Pm) => {
return Err(Error::InvalidComponent {
name: "hour",
value: hour.to_string(),
span_start: Some(hour_span.start()),
span_end: Some(period_span.unwrap_or_else(|| hour_span.end())),
});
}
(12, Period::Am) => 0,
(12, Period::Pm) => 12,
(hour, Period::Am | Period::_24) => hour,
(hour, Period::Pm) => hour + 12,
};
if hour >= Hour::per_t(Day) {
Err(Error::InvalidComponent {
name: "hour",
value: hour.to_string(),
span_start: Some(hour_span.start()),
span_end: Some(period_span.unwrap_or_else(|| hour_span.end())),
})
} else if minute >= Minute::per_t(Hour) {
Err(Error::InvalidComponent {
name: "minute",
value: minute.to_string(),
span_start: Some(minute_span.start()),
span_end: Some(minute_span.end()),
})
} else if second >= Second::per_t(Minute) {
Err(Error::InvalidComponent {
name: "second",
value: second.to_string(),
span_start: Some(second_span.start()),
span_end: Some(second_span.end()),
})
} else {
Ok(Time {
hour,
minute,
second: second.trunc() as u8,
nanosecond: (second.fract() * Nanosecond::per_t::<f64>(Second)).round() as u32,
})
}
}
impl ToTokenStream for Time {
fn append_to(self, ts: &mut TokenStream) {
quote_append! { ts
unsafe {
::time::Time::__from_hms_nanos_unchecked(
#(self.hour),
#(self.minute),
#(self.second),
#(self.nanosecond),
)
}
}
}
}

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use std::num::NonZero;
use proc_macro::{Group, Ident, Literal, Punct, Span, TokenStream, TokenTree};
/// Turn a type into a [`TokenStream`].
pub(crate) trait ToTokenStream: Sized {
fn append_to(self, ts: &mut TokenStream);
fn into_token_stream(self) -> TokenStream {
let mut ts = TokenStream::new();
self.append_to(&mut ts);
ts
}
}
pub(crate) trait ToTokenTree: Sized {
fn into_token_tree(self) -> TokenTree;
}
impl<T: ToTokenTree> ToTokenStream for T {
fn append_to(self, ts: &mut TokenStream) {
ts.extend([self.into_token_tree()])
}
}
impl ToTokenTree for bool {
fn into_token_tree(self) -> TokenTree {
let lit = if self { "true" } else { "false" };
TokenTree::Ident(Ident::new(lit, Span::mixed_site()))
}
}
impl ToTokenStream for TokenStream {
fn append_to(self, ts: &mut TokenStream) {
ts.extend(self)
}
}
impl ToTokenTree for TokenTree {
fn into_token_tree(self) -> TokenTree {
self
}
}
impl ToTokenTree for &str {
fn into_token_tree(self) -> TokenTree {
TokenTree::Literal(Literal::string(self))
}
}
impl ToTokenTree for NonZero<u16> {
fn into_token_tree(self) -> TokenTree {
quote_group! {{
unsafe { ::core::num::NonZero::<u16>::new_unchecked(#(self.get())) }
}}
}
}
macro_rules! impl_for_tree_types {
($($type:ty)*) => {$(
impl ToTokenTree for $type {
fn into_token_tree(self) -> TokenTree {
TokenTree::from(self)
}
}
)*};
}
impl_for_tree_types![Ident Literal Group Punct];
macro_rules! impl_for_int {
($($type:ty => $method:ident)*) => {$(
impl ToTokenTree for $type {
fn into_token_tree(self) -> TokenTree {
TokenTree::from(Literal::$method(self))
}
}
)*};
}
impl_for_int! {
i8 => i8_unsuffixed
u8 => u8_unsuffixed
u16 => u16_unsuffixed
i32 => i32_unsuffixed
u32 => u32_unsuffixed
}

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use std::iter::Peekable;
use proc_macro::{TokenStream, token_stream};
use crate::date::Date;
use crate::error::Error;
use crate::time::Time;
use crate::to_tokens::ToTokenStream;
use crate::{date, time};
pub(crate) struct UtcDateTime {
date: Date,
time: Time,
}
pub(crate) fn parse(chars: &mut Peekable<token_stream::IntoIter>) -> Result<UtcDateTime, Error> {
let date = date::parse(chars)?;
let time = time::parse(chars)?;
if let Some(token) = chars.peek() {
return Err(Error::UnexpectedToken {
tree: token.clone(),
});
}
Ok(UtcDateTime { date, time })
}
impl ToTokenStream for UtcDateTime {
fn append_to(self, ts: &mut TokenStream) {
quote_append! { ts
::time::UtcDateTime::new(
#S(self.date),
#S(self.time),
)
}
}
}

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{"name":"time-macros","vers":"0.2.27","deps":[{"name":"num-conv","req":"^0.2.0","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"time-core","req":"=0.1.8","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false}],"features":{"formatting":[],"large-dates":[],"parsing":[],"serde":[]},"features2":null,"cksum":"615393ebb449db6a9a3bf90b3672df2a7fce9788673dd76f88d4f9880501e9b5","yanked":null,"links":null,"rust_version":null,"v":2}

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