time-macros-0.2.16/.cargo_vcs_info.json0000644000000001510000000000100133370ustar { "git": { "sha1": "8067540c4b9b7d585351bcdb6ee847399b5c4504" }, "path_in_vcs": "time-macros" }time-macros-0.2.16/Cargo.toml0000644000000064630000000000100113510ustar # 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 = "2021" rust-version = "1.67.0" name = "time-macros" version = "0.2.16" authors = [ "Jacob Pratt ", "Time contributors", ] description = """ Procedural macros for the time crate. This crate is an implementation detail and should not be relied upon directly. """ 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] rustdoc-args = ["--generate-link-to-definition"] [lib] proc-macro = true [dependencies.time-core] version = "=0.1.2" [features] formatting = [] large-dates = [] parsing = [] serde = [] [lints.clippy] all = "warn" alloc-instead-of-core = "deny" 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" nursery = "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.option-if-let-else] level = "allow" priority = 1 [lints.clippy.redundant-pub-crate] level = "allow" priority = 1 [lints.rust] ambiguous-glob-reexports = "deny" clashing-extern-declarations = "deny" const-item-mutation = "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" temporary-cstring-as-ptr = "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 = "warn" unused-import-braces = "warn" unused-lifetimes = "warn" unused-qualifications = "warn" unused-tuple-struct-fields = "warn" variant-size-differences = "warn" [lints.rust.unstable-name-collisions] level = "warn" priority = 1 [lints.rustdoc] private-doc-tests = "warn" unescaped-backticks = "warn" time-macros-0.2.16/Cargo.toml.orig000064400000000000000000000013151046102023000150210ustar 00000000000000[package] name = "time-macros" version = "0.2.16" authors = ["Jacob Pratt ", "Time contributors"] edition = "2021" rust-version = "1.67.0" repository = "https://github.com/time-rs/time" keywords = ["date", "time", "calendar", "duration"] categories = ["date-and-time"] license = "MIT OR Apache-2.0" description = """ Procedural macros for the time crate. This crate is an implementation detail and should not be relied upon directly. """ [features] formatting = [] large-dates = [] parsing = [] serde = [] [lib] proc-macro = true [package.metadata.docs.rs] rustdoc-args = ["--generate-link-to-definition"] [lints] workspace = true [dependencies] time-core = { workspace = true } time-macros-0.2.16/LICENSE-Apache000064400000000000000000000261251046102023000143240ustar 00000000000000 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, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. 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While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright 2022 Jacob Pratt et al. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. time-macros-0.2.16/LICENSE-MIT000064400000000000000000000020461046102023000135700ustar 00000000000000Copyright (c) 2022 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. time-macros-0.2.16/src/date.rs000064400000000000000000000104671046102023000142140ustar 00000000000000use std::iter::Peekable; use proc_macro::{token_stream, TokenTree}; use time_core::util::{days_in_year, weeks_in_year}; use crate::helpers::{ consume_any_ident, consume_number, consume_punct, days_in_year_month, ymd_to_yo, ywd_to_yo, }; use crate::to_tokens::ToTokenTree; use crate::Error; #[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) -> Result { 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::("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(year_span)), span_end: Some(year_span), }); } 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(year_span)), span_end: Some(year_span), }); } consume_punct('-', chars)?; // year-week-day if let Ok(w_span) = consume_any_ident(&["W"], chars) { let (week_span, week) = consume_number::("week", chars)?; consume_punct('-', chars)?; let (day_span, day) = consume_number::("day", chars)?; if week > weeks_in_year(year) { return Err(Error::InvalidComponent { name: "week", value: week.to_string(), span_start: Some(w_span), span_end: Some(week_span), }); } if day == 0 || day > 7 { return Err(Error::InvalidComponent { name: "day", value: day.to_string(), span_start: Some(day_span), span_end: Some(day_span), }); } 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::("month or ordinal", chars)?; // year-month-day #[allow(clippy::branches_sharing_code)] // clarity if consume_punct('-', chars).is_ok() { let (month_span, month) = (month_or_ordinal_span, month_or_ordinal); let (day_span, day) = consume_number::("day", chars)?; if month == 0 || month > 12 { return Err(Error::InvalidComponent { name: "month", value: month.to_string(), span_start: Some(month_span), span_end: Some(month_span), }); } let month = month as _; 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), span_end: Some(day_span), }); } 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), span_end: Some(ordinal_span), }); } Ok(Date { year, ordinal }) } } impl ToTokenTree for Date { fn into_token_tree(self) -> TokenTree { quote_group! {{ const DATE: ::time::Date = unsafe { ::time::Date::__from_ordinal_date_unchecked( #(self.year), #(self.ordinal), ) }; DATE }} } } time-macros-0.2.16/src/datetime.rs000064400000000000000000000030731046102023000150660ustar 00000000000000use std::iter::Peekable; use proc_macro::{token_stream, Ident, Span, TokenTree}; use crate::date::Date; use crate::error::Error; use crate::offset::Offset; use crate::time::Time; use crate::to_tokens::ToTokenTree; use crate::{date, offset, time}; pub(crate) struct DateTime { date: Date, time: Time, offset: Option, } pub(crate) fn parse(chars: &mut Peekable) -> Result { 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 ToTokenTree for DateTime { fn into_token_tree(self) -> TokenTree { let (type_name, maybe_offset) = match self.offset { Some(offset) => ( Ident::new("OffsetDateTime", Span::mixed_site()), quote!(.assume_offset(#(offset))), ), None => ( Ident::new("PrimitiveDateTime", Span::mixed_site()), quote!(), ), }; quote_group! {{ const DATE_TIME: ::time::#(type_name) = ::time::PrimitiveDateTime::new( #(self.date), #(self.time), ) #S(maybe_offset); DATE_TIME }} } } time-macros-0.2.16/src/error.rs000064400000000000000000000103501046102023000144170ustar 00000000000000use 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_end: Option, }, InvalidComponent { name: &'static str, value: String, span_start: Option, span_end: Option, }, #[cfg(any(feature = "formatting", feature = "parsing"))] ExpectedString { span_start: Option, span_end: Option, }, UnexpectedToken { tree: TokenTree, }, UnexpectedEndOfInput, Custom { message: Cow<'static, str>, span_start: Option, span_end: Option, }, } 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() } } time-macros-0.2.16/src/format_description/ast.rs000064400000000000000000000215341046102023000177560ustar 00000000000000use std::boxed::Box; use std::iter; use super::{lexer, unused, Error, Location, Spanned, SpannedValue, Unused}; pub(super) enum Item<'a> { Literal(Spanned<&'a [u8]>), EscapedBracket { _first: Unused, _second: Unused, }, Component { _opening_bracket: Unused, _leading_whitespace: Unused>>, name: Spanned<&'a [u8]>, modifiers: Box<[Modifier<'a>]>, _trailing_whitespace: Unused>>, _closing_bracket: Unused, }, Optional { opening_bracket: Location, _leading_whitespace: Unused>>, _optional_kw: Unused>, _whitespace: Unused>, nested_format_description: NestedFormatDescription<'a>, closing_bracket: Location, }, First { opening_bracket: Location, _leading_whitespace: Unused>>, _first_kw: Unused>, _whitespace: Unused>, nested_format_descriptions: Box<[NestedFormatDescription<'a>]>, closing_bracket: Location, }, } pub(super) struct NestedFormatDescription<'a> { pub(super) _opening_bracket: Unused, pub(super) items: Box<[Item<'a>]>, pub(super) _closing_bracket: Unused, pub(super) _trailing_whitespace: Unused>>, } pub(super) struct Modifier<'a> { pub(super) _leading_whitespace: Unused>, pub(super) key: Spanned<&'a [u8]>, pub(super) _colon: Unused, pub(super) value: Spanned<&'a [u8]>, } pub(super) fn parse< 'item: 'iter, 'iter, I: Iterator, Error>>, const VERSION: u8, >( tokens: &'iter mut lexer::Lexed, ) -> impl Iterator, Error>> + 'iter { assert!(version!(1..=2)); parse_inner::<_, false, VERSION>(tokens) } fn parse_inner< 'item, I: Iterator, Error>>, const NESTED: bool, const VERSION: u8, >( tokens: &mut lexer::Lexed, ) -> impl Iterator, Error>> + '_ { 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, Error>>, const VERSION: u8>( opening_bracket: Location, tokens: &mut lexer::Lexed, ) -> Result, 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 _)), _colon: unused(span.start.offset(colon_index as _)), value: value.spanned(span.shrink_to_after(colon_index as _)), }); }; 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, Error>>, const VERSION: u8>( last_location: Location, tokens: &mut lexer::Lexed, ) -> Result, 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::>()?; 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), }) } time-macros-0.2.16/src/format_description/format_item.rs000064400000000000000000000336231046102023000214770ustar 00000000000000use std::boxed::Box; use std::num::NonZeroU16; use std::str::{self, FromStr}; use super::{ast, unused, Error, Span, Spanned, Unused}; pub(super) fn parse<'a>( ast_items: impl Iterator, Error>>, ) -> impl Iterator, 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, }, First { value: Box<[Box<[Self]>]>, _span: Unused, }, } impl Item<'_> { pub(super) fn from_ast(ast_item: ast::Item<'_>) -> Result, 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::>()?; 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::>()?; Item::First { value: items, _span: unused(opening_bracket.to(closing_bracket)), } } }) } } impl From> 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]>> for crate::format_description::public::OwnedFormatItem { fn from(items: Box<[Item<'a>]>) -> Self { let items = items.into_vec(); if items.len() == 1 { if let Ok([item]) = <[_; 1]>::try_from(items) { item.into() } else { bug!("the length was just checked to be 1") } } else { Self::Compound(items.into_iter().map(Self::from).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 { #[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 { $(#[allow(clippy::string_lit_as_bytes)] if name.eq_ignore_ascii_case($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, }, End = "end" {}, Hour = "hour" { padding = "padding": Option => padding, base = "repr": Option => is_12_hour_clock, }, Ignore = "ignore" { #[required] count = "count": Option<#[from_str] NonZeroU16> => count, }, Minute = "minute" { padding = "padding": Option => padding, }, Month = "month" { padding = "padding": Option => padding, repr = "repr": Option => repr, case_sensitive = "case_sensitive": Option => case_sensitive, }, OffsetHour = "offset_hour" { sign_behavior = "sign": Option => sign_is_mandatory, padding = "padding": Option => padding, }, OffsetMinute = "offset_minute" { padding = "padding": Option => padding, }, OffsetSecond = "offset_second" { padding = "padding": Option => padding, }, Ordinal = "ordinal" { padding = "padding": Option => padding, }, Period = "period" { case = "case": Option => is_uppercase, case_sensitive = "case_sensitive": Option => case_sensitive, }, Second = "second" { padding = "padding": Option => padding, }, Subsecond = "subsecond" { digits = "digits": Option => digits, }, UnixTimestamp = "unix_timestamp" { precision = "precision": Option => precision, sign_behavior = "sign": Option => sign_is_mandatory, }, Weekday = "weekday" { repr = "repr": Option => repr, one_indexed = "one_indexed": Option => one_indexed, case_sensitive = "case_sensitive": Option => case_sensitive, }, WeekNumber = "week_number" { padding = "padding": Option => padding, repr = "repr": Option => repr, }, Year = "year" { padding = "padding": Option => padding, repr = "repr": Option => repr, base = "base": Option => iso_week_based, sign_behavior = "sign": Option => 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, 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 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", LastTwo = b"last_two", } } fn parse_from_modifier_value(value: &Spanned<&[u8]>) -> Result, Error> { str::from_utf8(value) .ok() .and_then(|val| val.parse::().ok()) .map(|val| Some(val)) .ok_or_else(|| value.span.error("invalid modifier value")) } time-macros-0.2.16/src/format_description/lexer.rs000064400000000000000000000157721046102023000203150ustar 00000000000000use core::iter; use super::{Error, Location, Spanned, SpannedValue}; pub(super) struct Lexed { iter: core::iter::Peekable, } impl Iterator for Lexed { type Item = I::Item; fn next(&mut self) -> Option { self.iter.next() } } impl<'iter, 'token: 'iter, I: Iterator, Error>> + 'iter> Lexed { pub(super) fn peek(&mut self) -> Option<&I::Item> { self.iter.peek() } pub(super) fn next_if_whitespace(&mut self) -> Option> { 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> { 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 { 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 { 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 { #[allow(clippy::missing_docs_in_private_items)] Whitespace, #[allow(clippy::missing_docs_in_private_items)] NotWhitespace, } fn attach_location<'item>( iter: impl Iterator, proc_span: proc_macro::Span, ) -> impl Iterator { let mut byte_pos = 0; iter.map(move |byte| { let location = Location { byte: byte_pos, proc_span, }; byte_pos += 1; (byte, location) }) } #[allow(clippy::unused_peekable)] // false positive pub(super) fn lex( mut input: &[u8], proc_span: proc_macro::Span, ) -> Lexed, Error>>> { assert!(version!(1..=2)); let mut depth: u8 = 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) { if 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(), } } time-macros-0.2.16/src/format_description/mod.rs000064400000000000000000000077051046102023000177520ustar 00000000000000//! Parser for format descriptions. use std::vec::Vec; 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, s: &[u8], proc_span: proc_macro::Span, ) -> Result, 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( s: &[u8], proc_span: proc_macro::Span, ) -> Result, crate::Error> { let mut lexed = lexer::lex::(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::>()?) } #[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 { #[allow(clippy::missing_docs_in_private_items)] start: Location, #[allow(clippy::missing_docs_in_private_items)] 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 { value: T, span: Span, } impl core::ops::Deref for Spanned { type Target = T; fn deref(&self) -> &Self::Target { &self.value } } trait SpannedValue: Sized { fn spanned(self, span: Span) -> Spanned; } impl SpannedValue for T { fn spanned(self, span: Span) -> Spanned { Spanned { value: self, span } } } struct Error { message: &'static str, _span: Unused, proc_span: proc_macro::Span, } impl From 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(core::marker::PhantomData); #[allow(clippy::missing_const_for_fn)] // false positive fn unused(_: T) -> Unused { Unused(core::marker::PhantomData) } time-macros-0.2.16/src/format_description/public/component.rs000064400000000000000000000021241046102023000224410ustar 00000000000000use 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 ::time::format_description::Component::#(component)(#S(mts)) } } } }; } declare_component! { Day Month Ordinal Weekday WeekNumber Year Hour Minute Period Second Subsecond OffsetHour OffsetMinute OffsetSecond Ignore UnixTimestamp End } time-macros-0.2.16/src/format_description/public/mod.rs000064400000000000000000000034141046102023000212210ustar 00000000000000mod component; pub(super) mod modifier; use proc_macro::{Literal, TokenStream}; pub(crate) use self::component::Component; use crate::to_tokens::ToTokenStream; #[allow(variant_size_differences)] pub(crate) enum OwnedFormatItem { Literal(Box<[u8]>), Component(Component), Compound(Box<[Self]>), Optional(Box), First(Box<[Self]>), } impl ToTokenStream for OwnedFormatItem { fn append_to(self, ts: &mut TokenStream) { match self { Self::Literal(bytes) => quote_append! { ts ::time::format_description::FormatItem::Literal { 0: #(Literal::byte_string(bytes.as_ref())) } }, Self::Component(component) => quote_append! { ts ::time::format_description::FormatItem::Component { 0: #S(component) } }, Self::Compound(items) => { let items = items .into_vec() .into_iter() .map(|item| quote! { #S(item), }) .collect::(); quote_append! { ts ::time::format_description::FormatItem::Compound { 0: &[#S(items)] } } } Self::Optional(item) => quote_append! {ts ::time::format_description::FormatItem::Optional { 0: &#S(*item) } }, Self::First(items) => { let items = items .into_vec() .into_iter() .map(|item| quote! { #S(item), }) .collect::(); quote_append! { ts ::time::format_description::FormatItem::First { 0: &[#S(items)] } } } } } } time-macros-0.2.16/src/format_description/public/modifier.rs000064400000000000000000000121101046102023000222310ustar 00000000000000use std::num::NonZeroU16; use proc_macro::{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 ),* $(,)?} ) => { $(#[$struct_attr])* $struct_vis struct $struct_name {$( $(#[$field_attr])* $field_vis $field_name: $field_ty ),*} impl ToTokenTree for $struct_name { fn into_token_tree(self) -> TokenTree { let mut tokens = TokenStream::new(); let Self {$($field_name),*} = self; quote_append! { tokens let mut value = ::time::format_description::modifier::$struct_name::default(); }; $( quote_append!(tokens value.$field_name =); $field_name.append_to(&mut tokens); quote_append!(tokens ;); )* quote_append!(tokens value); proc_macro::TokenTree::Group(proc_macro::Group::new( proc_macro::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 $enum_name { fn append_to(self, ts: &mut TokenStream) { quote_append! { ts ::time::format_description::modifier::$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, } } to_tokens! { pub(crate) enum MonthRepr { Numerical, Long, Short, } } to_tokens! { pub(crate) struct Month { pub(crate) padding: Padding, pub(crate) repr: MonthRepr, pub(crate) case_sensitive: bool, } } to_tokens! { pub(crate) struct Ordinal { pub(crate) padding: Padding, } } to_tokens! { pub(crate) enum WeekdayRepr { Short, Long, Sunday, Monday, } } to_tokens! { pub(crate) struct Weekday { pub(crate) repr: WeekdayRepr, pub(crate) one_indexed: bool, pub(crate) case_sensitive: bool, } } to_tokens! { pub(crate) enum WeekNumberRepr { Iso, Sunday, Monday, } } to_tokens! { pub(crate) struct WeekNumber { pub(crate) padding: Padding, pub(crate) repr: WeekNumberRepr, } } to_tokens! { pub(crate) enum YearRepr { Full, LastTwo, } } to_tokens! { pub(crate) struct Year { pub(crate) padding: Padding, pub(crate) repr: YearRepr, pub(crate) iso_week_based: bool, pub(crate) sign_is_mandatory: bool, } } to_tokens! { pub(crate) struct Hour { pub(crate) padding: Padding, pub(crate) is_12_hour_clock: bool, } } to_tokens! { pub(crate) struct Minute { pub(crate) padding: Padding, } } to_tokens! { pub(crate) struct Period { pub(crate) is_uppercase: bool, pub(crate) case_sensitive: bool, } } to_tokens! { pub(crate) struct Second { pub(crate) padding: Padding, } } 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, } } to_tokens! { pub(crate) struct OffsetHour { pub(crate) sign_is_mandatory: bool, pub(crate) padding: Padding, } } to_tokens! { pub(crate) struct OffsetMinute { pub(crate) padding: Padding, } } to_tokens! { pub(crate) struct OffsetSecond { pub(crate) padding: Padding, } } to_tokens! { pub(crate) enum Padding { Space, Zero, None, } } pub(crate) struct Ignore { pub(crate) count: NonZeroU16, } impl ToTokenTree for Ignore { fn into_token_tree(self) -> TokenTree { quote_group! {{ ::time::format_description::modifier::Ignore::count(#(self.count)) }} } } to_tokens! { pub(crate) enum UnixTimestampPrecision { Second, Millisecond, Microsecond, Nanosecond, } } to_tokens! { pub(crate) struct UnixTimestamp { pub(crate) precision: UnixTimestampPrecision, pub(crate) sign_is_mandatory: bool, } } to_tokens! { pub(crate) struct End {} } time-macros-0.2.16/src/helpers/mod.rs000064400000000000000000000076561046102023000155260ustar 00000000000000#[cfg(any(feature = "formatting", feature = "parsing"))] mod string; use std::iter::Peekable; use std::str::FromStr; use proc_macro::{token_stream, Span, TokenTree}; 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, ) -> Result<(Span, Vec), 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( component_name: &'static str, chars: &mut Peekable, ) -> 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, ) -> Result { 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, ) -> Result { 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)) as _ } 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 as usize - 1] + (month == 2 && is_leap_year(year)) as u8 } 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 as usize - 1] + (month > 2 && is_leap_year(year)) as u16; (year, ordinal + u16::from(day)) } time-macros-0.2.16/src/helpers/string.rs000064400000000000000000000123121046102023000162360ustar 00000000000000use std::ops::{Index, RangeFrom}; use proc_macro::Span; use crate::Error; pub(crate) fn parse(token: &proc_macro::Literal) -> Result<(Span, Vec), 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 { 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 { 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 { 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) -> (u8, &S) where S: Index, 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, ) } time-macros-0.2.16/src/lib.rs000064400000000000000000000223271046102023000140430ustar 00000000000000#![allow( clippy::missing_const_for_fn, // irrelevant for proc macros clippy::missing_docs_in_private_items, // TODO remove clippy::std_instead_of_core, // irrelevant for proc macros clippy::std_instead_of_alloc, // irrelevant for proc macros clippy::alloc_instead_of_core, // irrelevant for proc macros missing_docs, // TODO remove )] #[allow(unused_macros)] 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; #[cfg(any(feature = "formatting", feature = "parsing"))] use std::iter::Peekable; use proc_macro::TokenStream; #[cfg(any(feature = "formatting", feature = "parsing"))] use proc_macro::{Ident, TokenTree}; use self::error::Error; macro_rules! impl_macros { ($($name:ident)*) => {$( #[proc_macro] pub fn $name(input: TokenStream) -> TokenStream { use crate::to_tokens::ToTokenTree; 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 => TokenStream::from(value.into_token_tree()), }, Err(err) => err.to_compile_error(), } } )*}; } impl_macros![date datetime offset time]; #[cfg(any(feature = "formatting", feature = "parsing"))] enum FormatDescriptionVersion { V1, V2, } #[cfg(any(feature = "formatting", feature = "parsing"))] enum VersionOrModuleName { Version(FormatDescriptionVersion), #[cfg_attr(not(feature = "serde"), allow(unused_tuple_struct_fields))] ModuleName(Ident), } #[cfg(any(feature = "formatting", feature = "parsing"))] fn parse_format_description_version( iter: &mut Peekable, ) -> Result, Error> { let version_ident = match iter.peek() { Some(TokenTree::Ident(ident)) if ident.to_string() == "version" => match iter.next() { Some(TokenTree::Ident(ident)) => ident, _ => unreachable!(), }, _ => return Ok(None), }; match iter.peek() { Some(TokenTree::Punct(punct)) if punct.as_char() == '=' => iter.next(), _ if NO_EQUALS_IS_MOD_NAME => { return Ok(Some(VersionOrModuleName::ModuleName(version_ident))); } 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(VersionOrModuleName::Version(version))) } #[cfg(any(feature = "formatting", feature = "parsing"))] #[proc_macro] pub fn format_description(input: TokenStream) -> TokenStream { (|| { let mut input = input.into_iter().peekable(); let version = match parse_format_description_version::(&mut input)? { Some(VersionOrModuleName::Version(version)) => Some(version), None => None, // This branch should never occur here, as `false` is the provided as a const parameter. Some(VersionOrModuleName::ModuleName(_)) => bug!("branch should never occur"), }; let (span, string) = helpers::get_string_literal(input)?; let items = format_description::parse_with_version(version, &string, span)?; Ok(quote! {{ const DESCRIPTION: &[::time::format_description::FormatItem<'_>] = &[#S( items .into_iter() .map(|item| quote! { #S(item), }) .collect::() )]; DESCRIPTION }}) })() .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::(&mut tokens)?; let (version, mod_name) = match version { Some(VersionOrModuleName::ModuleName(module_name)) => (None, Some(module_name)), Some(VersionOrModuleName::Version(version)) => (Some(version), None), None => (None, None), }; // Next, an identifier (the desired module name) // Only parse this if it wasn't parsed when attempting to get the version. let mod_name = match mod_name { Some(mod_name) => mod_name, None => 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 ITEMS: &[::time::format_description::FormatItem<'_>] = &[#S(items)]; ITEMS }; (items, String::from_utf8_lossy(&format_string).into_owned()) } // path Some(_) => { let tokens = tokens.collect::(); let tokens_string = tokens.to_string(); ( quote! {{ // We can't just do `super::path` because the path could be an absolute // path. In that case, we'd be generating `super::::path`, which is invalid. // Even if we took that into account, it's not possible to know if it's an // external crate, which would just require emitting `path` directly. By // taking this approach, we can leave it to the compiler to do the actual // resolution. mod __path_hack { pub(super) use super::super::*; pub(super) use #S(tokens) as FORMAT; } __path_hack::FORMAT }}, tokens_string, ) } None => return Err(Error::UnexpectedEndOfInput), }; Ok(serde_format_description::build( mod_name, formattable, format, format_description_display, )) })() .unwrap_or_else(|err: Error| err.to_compile_error_standalone()) } time-macros-0.2.16/src/offset.rs000064400000000000000000000054011046102023000145550ustar 00000000000000use std::iter::Peekable; use proc_macro::{token_stream, Span, TokenTree}; use time_core::convert::*; use crate::helpers::{consume_any_ident, consume_number, consume_punct}; use crate::to_tokens::ToTokenTree; use crate::Error; pub(crate) struct Offset { pub(crate) hours: i8, pub(crate) minutes: i8, pub(crate) seconds: i8, } pub(crate) fn parse(chars: &mut Peekable) -> Result { 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::("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::("minute", chars)?; minutes_span = min.0; minutes = min.1; if consume_punct(':', chars).is_ok() { let sec = consume_number::("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), span_end: Some(hours_span), }) } else if minutes >= Minute::per(Hour) as _ { Err(Error::InvalidComponent { name: "minute", value: minutes.to_string(), span_start: Some(minutes_span), span_end: Some(minutes_span), }) } else if seconds >= Second::per(Minute) as _ { Err(Error::InvalidComponent { name: "second", value: seconds.to_string(), span_start: Some(seconds_span), span_end: Some(seconds_span), }) } else { Ok(Offset { hours: sign * hours, minutes: sign * minutes, seconds: sign * seconds, }) } } impl ToTokenTree for Offset { fn into_token_tree(self) -> TokenTree { quote_group! {{ const OFFSET: ::time::UtcOffset = unsafe { ::time::UtcOffset::__from_hms_unchecked( #(self.hours), #(self.minutes), #(self.seconds), ) }; OFFSET }} } } time-macros-0.2.16/src/quote.rs000064400000000000000000000117141046102023000144300ustar 00000000000000macro_rules! quote { () => (::proc_macro::TokenStream::new()); ($($x:tt)*) => {{ let mut ts = ::proc_macro::TokenStream::new(); let ts_mut = &mut ts; quote_inner!(ts_mut $($x)*); ts }}; } #[cfg(any(feature = "formatting", feature = "parsing"))] macro_rules! quote_append { ($ts:ident $($x:tt)*) => {{ quote_inner!($ts $($x)*); }}; } macro_rules! quote_group { ({ $($x:tt)* }) => { ::proc_macro::TokenTree::Group(::proc_macro::Group::new( ::proc_macro::Delimiter::Brace, quote!($($x)*) )) }; } macro_rules! sym { ($ts:ident $x:tt $y:tt) => { $ts.extend([ ::proc_macro::TokenTree::from(::proc_macro::Punct::new( $x, ::proc_macro::Spacing::Joint, )), ::proc_macro::TokenTree::from(::proc_macro::Punct::new( $y, ::proc_macro::Spacing::Alone, )), ]); }; ($ts:ident $x:tt) => { $ts.extend([::proc_macro::TokenTree::from(::proc_macro::Punct::new( $x, ::proc_macro::Spacing::Alone, ))]); }; } #[allow(unused_macro_rules)] // Varies by feature flag combination. macro_rules! quote_inner { // Base case ($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)*) => { $ts.extend([::proc_macro::TokenTree::from(::proc_macro::Ident::new( &stringify!($i), ::proc_macro::Span::mixed_site(), ))]); quote_inner!($ts $($tail)*); }; // Literal ($ts:ident 0 $($tail:tt)*) => { $ts.extend([::proc_macro::TokenTree::from(::proc_macro::Literal::usize_unsuffixed(0))]); quote_inner!($ts $($tail)*); }; ($ts:ident $l:literal $($tail:tt)*) => { $ts.extend([::proc_macro::TokenTree::from(::proc_macro::Literal::string(&$l))]); quote_inner!($ts $($tail)*); }; // Lifetime ($ts:ident $l:lifetime $($tail:tt)*) => { $ts.extend([ ::proc_macro::TokenTree::from( ::proc_macro::Punct::new('\'', ::proc_macro::Spacing::Joint) ), ::proc_macro::TokenTree::from(::proc_macro::Ident::new( stringify!($l).trim_start_matches(|c| c == '\''), ::proc_macro::Span::mixed_site(), )), ]); quote_inner!($ts $($tail)*); }; // Groups ($ts:ident ($($inner:tt)*) $($tail:tt)*) => { $ts.extend([::proc_macro::TokenTree::Group(::proc_macro::Group::new( ::proc_macro::Delimiter::Parenthesis, quote!($($inner)*) ))]); quote_inner!($ts $($tail)*); }; ($ts:ident [$($inner:tt)*] $($tail:tt)*) => { $ts.extend([::proc_macro::TokenTree::Group(::proc_macro::Group::new( ::proc_macro::Delimiter::Bracket, quote!($($inner)*) ))]); quote_inner!($ts $($tail)*); }; ($ts:ident {$($inner:tt)*} $($tail:tt)*) => { $ts.extend([::proc_macro::TokenTree::Group(::proc_macro::Group::new( ::proc_macro::Delimiter::Brace, quote!($($inner)*) ))]); quote_inner!($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)*); }; } time-macros-0.2.16/src/serde_format_description.rs000064400000000000000000000124741046102023000203540ustar 00000000000000use proc_macro::{Ident, TokenStream, TokenTree}; pub(crate) fn build( 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! { struct Visitor; 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( 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>( self, deserializer: D ) -> Result, D::Error> { deserializer .deserialize_str(Visitor) .map(Some) } fn visit_none( self ) -> Result, E> { Ok(None) } } } } else { quote!() }; let serialize_primary = if cfg!(feature = "formatting") { quote! { pub fn serialize( datetime: &__TimeSerdeType, serializer: S, ) -> Result { use ::serde::Serialize; datetime .format(&description()) .map_err(::time::error::Format::into_invalid_serde_value::)? .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! { pub fn serialize( option: &Option<__TimeSerdeType>, serializer: S, ) -> Result { use ::serde::Serialize; option.map(|datetime| datetime.format(&description())) .transpose() .map_err(::time::error::Format::into_invalid_serde_value::)? .serialize(serializer) } } } else { quote!() }; let deserialize_option = if cfg!(feature = "parsing") { quote! { pub fn deserialize<'a, D: ::serde::Deserializer<'a>>( deserializer: D ) -> Result, D::Error> { use ::serde::Deserialize; deserializer.deserialize_option(OptionVisitor) } } } else { quote!() }; let deserialize_option_imports = if cfg!(feature = "parsing") { quote! { use super::{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! { mod #(mod_name) { use ::time::#(ty) as __TimeSerdeType; const fn description() -> impl #S(fd_traits) { #S(format) } #S(visitor) #S(serialize_primary) #S(deserialize_primary) pub(super) mod option { use super::{description, __TimeSerdeType}; #S(deserialize_option_imports) #S(serialize_option) #S(deserialize_option) } } } } time-macros-0.2.16/src/time.rs000064400000000000000000000073651046102023000142400ustar 00000000000000use std::iter::Peekable; use proc_macro::{token_stream, Span, TokenTree}; use time_core::convert::*; use crate::helpers::{consume_any_ident, consume_number, consume_punct}; use crate::to_tokens::ToTokenTree; use crate::Error; 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) -> Result { fn consume_period(chars: &mut Peekable) -> (Option, 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::("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), span_end: Some(period_span.unwrap_or(hour_span)), }); } (12, Period::Am) => 0, (12, Period::Pm) => 12, (hour, Period::Am | Period::_24) => hour, (hour, Period::Pm) => hour + 12, }; if hour >= Hour::per(Day) { Err(Error::InvalidComponent { name: "hour", value: hour.to_string(), span_start: Some(hour_span), span_end: Some(period_span.unwrap_or(hour_span)), }) } else if minute >= Minute::per(Hour) { Err(Error::InvalidComponent { name: "minute", value: minute.to_string(), span_start: Some(minute_span), span_end: Some(minute_span), }) } else if second >= Second::per(Minute) as _ { Err(Error::InvalidComponent { name: "second", value: second.to_string(), span_start: Some(second_span), span_end: Some(second_span), }) } else { Ok(Time { hour, minute, second: second.trunc() as _, nanosecond: (second.fract() * Nanosecond::per(Second) as f64).round() as _, }) } } impl ToTokenTree for Time { fn into_token_tree(self) -> TokenTree { quote_group! {{ const TIME: ::time::Time = unsafe { ::time::Time::__from_hms_nanos_unchecked( #(self.hour), #(self.minute), #(self.second), #(self.nanosecond), ) }; TIME }} } } time-macros-0.2.16/src/to_tokens.rs000064400000000000000000000035221046102023000152760ustar 00000000000000use std::num::NonZeroU16; 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); } pub(crate) trait ToTokenTree: Sized { fn into_token_tree(self) -> TokenTree; } impl 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 NonZeroU16 { fn into_token_tree(self) -> TokenTree { quote_group! {{ unsafe { ::core::num::NonZeroU16::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 }