Added support for defining macros in Rust within the macro system

Also fixed a lot of bugs
This commit is contained in:
2025-09-30 21:23:16 +02:00
parent 7971a2b4eb
commit b77653f841
52 changed files with 849 additions and 502 deletions

View File

@@ -1,3 +1,4 @@
use std::borrow::Borrow;
use std::cmp::Ordering;
use std::convert::Infallible;
use std::future::Future;
@@ -5,6 +6,7 @@ use std::iter;
use std::rc::Rc;
use std::str::FromStr;
use futures::future::join_all;
use itertools::Itertools;
use never::Never;
use regex::Regex;
@@ -77,9 +79,12 @@ impl FmtElement {
pub fn bounded(i: u32) -> Self { Self::sub(i, Some(true)) }
pub fn unbounded(i: u32) -> Self { Self::sub(i, Some(false)) }
pub fn last(i: u32) -> Self { Self::sub(i, None) }
pub fn sequence(len: usize, bounded: Option<bool>) -> impl Iterator<Item = Self> {
let len32: u32 = len.try_into().unwrap();
(0..len32 - 1).map(FmtElement::unbounded).chain([FmtElement::sub(len32 - 1, bounded)])
pub fn sequence(len: usize, bounded: Option<bool>) -> Vec<Self> {
match len.try_into().unwrap() {
0u32 => vec![],
1u32 => vec![FmtElement::sub(0, bounded)],
n => (0..n - 1).map(FmtElement::unbounded).chain([FmtElement::sub(n - 1, bounded)]).collect(),
}
}
pub fn from_api(api: &api::FormattingElement) -> Self {
match_mapping!(api, api::FormattingElement => FmtElement {
@@ -109,6 +114,13 @@ fn variants_parse_test() {
println!("final: {vars:?}")
}
/// Represents a collection of formatting strings for the same set of parameters
/// from which the formatter can choose within their associated constraints.
///
/// - {0b} can be replaced by any variant of the parameter.
/// - {0} can only be replaced by a bounded variant of the parameter
/// - {0l} causes the current end restriction to be applied to the parameter.
/// This is to be used if the parameter is at the very end of the variant.
#[derive(Clone, Debug, Hash, PartialEq, Eq, Default)]
pub struct Variants(pub Vec<Variant>);
impl Variants {
@@ -183,19 +195,24 @@ impl Variants {
fn add(&mut self, bounded: bool, s: &'_ str) {
self.0.push(Variant { bounded, elements: Self::parse(s) })
}
// This option is available in all positions
/// This option is available in all positions.
/// See [Variants] for a description of the format strings
pub fn bounded(mut self, s: &'_ str) -> Self {
self.add(true, s);
self
}
// This option is only available in positions immediately preceding the end of
// the sequence or a parenthesized subsequence.
/// This option is only available in positions immediately preceding the end
/// of the sequence or a parenthesized subsequence.
/// See [Variants] for a description of the format strings
pub fn unbounded(mut self, s: &'_ str) -> Self {
self.add(false, s);
self
}
pub fn sequence(len: usize, delim: &str, seq_bnd: Option<bool>) -> Rc<Self> {
let seq = Itertools::intersperse(FmtElement::sequence(len, seq_bnd), FmtElement::str(delim));
let seq = Itertools::intersperse(
FmtElement::sequence(len, seq_bnd).into_iter(),
FmtElement::str(delim),
);
Rc::new(Variants(vec![Variant { bounded: true, elements: seq.collect_vec() }]))
}
pub fn units(self: &Rc<Self>, subs: impl IntoIterator<Item = FmtUnit>) -> FmtUnit {
@@ -278,3 +295,12 @@ impl Format for Never {
/// Format with default strategy. Currently equal to [take_first_fmt]
pub async fn fmt(v: &(impl Format + ?Sized), i: &Interner) -> String { take_first_fmt(v, i).await }
/// Format a sequence with default strategy. Currently equal to [take_first_fmt]
pub async fn fmt_v<F: Format + ?Sized, R: Borrow<F>>(
v: impl IntoIterator<Item = R>,
i: &Interner,
) -> impl Iterator<Item = String> {
join_all(v.into_iter().map(|f| async move { take_first_fmt(f.borrow(), i).await }))
.await
.into_iter()
}