forked from katzen-cafe/iowo
lang: rework ast structure
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parent
ace69b0094
commit
b6e304fa78
SSH key fingerprint:
SHA256:hXb3t1vINBFCiDCmhRABHX5ocdbLiKyCdKI4HK2Rbbc
5 changed files with 209 additions and 164 deletions
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@ -64,6 +64,7 @@ impl<'filename, 'tokens, 'src> ErrorCollector<'filename, 'tokens, 'src> {
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for ((file, stage), errs) in raw_errors.into_iter() {
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for err in errs {
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eprintln!("e: {err:?}");
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Report::build(ariadne::ReportKind::Error, file, err.span().start)
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.with_message(format!("error at stage {stage:?}, {:?}", err.reason()))
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.with_label(
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@ -2,14 +2,12 @@ use std::ops::Range;
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use chumsky::{
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error::Rich,
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extra,
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input::{Stream, ValueInput},
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prelude::*,
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primitive::just,
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recursive::recursive,
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select,
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span::SimpleSpan,
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IterParser, Parser,
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IterParser,
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};
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use indexmap::IndexMap;
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use logos::{Logos, Source};
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@ -19,7 +17,7 @@ use crate::tokens::Token;
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pub mod ast;
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#[cfg(test)]
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mod tests;
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use self::ast::{Expr, File};
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use self::ast::{Expr, Expression, File};
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pub type Span = SimpleSpan;
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pub type Spanned<T> = (T, Span);
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@ -31,11 +29,13 @@ pub fn parse<'src>(src: &'src str) -> ParseResult<File<'_>, Rich<'_, Token<'_>>>
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.map(|(t, s)| (t.expect("TODO: add lexer error(s)"), Span::from(s)))
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.collect();
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let tok_stream = Stream::from_iter(toks).spanned((src.len()..src.len()).into());
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expr_parser().parse(tok_stream)
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parser().parse(tok_stream)
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}
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fn expr_parser<'tokens, 'src: 'tokens, I: ValueInput<'tokens, Token = Token<'src>, Span = Span>>(
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) -> impl Parser<'tokens, I, File<'src>, extra::Err<Rich<'tokens, Token<'src>, Span>>> {
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pub(crate) fn parser<
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'tokens,
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'src: 'tokens,
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I: ValueInput<'tokens, Token = Token<'src>, Span = Span>,
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>() -> impl Parser<'tokens, I, File<'src>, extra::Err<Rich<'tokens, Token<'src>, Span>>> {
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let word = select! { Token::Word(word) => word };
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let expr = recursive(|expr| {
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@ -43,7 +43,7 @@ fn expr_parser<'tokens, 'src: 'tokens, I: ValueInput<'tokens, Token = Token<'src
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Token::VarIdent(name) => (Expr::Var as fn(_) -> _, name),
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Token::InputIdent(name) => (Expr::InputVar as fn(_) -> _, name)
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}
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.map_with(|(item_type, name), extra| item_type((name, extra.span())))
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.map_with(|(item_type, name), extra| Expression::new(item_type(name), extra.span()))
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.labelled("variable");
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let attrset = word
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@ -62,11 +62,15 @@ fn expr_parser<'tokens, 'src: 'tokens, I: ValueInput<'tokens, Token = Token<'src
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let node = word
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.map_with(|v, e| (v, e.span()))
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.then(attrset.clone().or_not())
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.map(|(name, params)| Expr::Node(name, params))
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.map_with(|(name, params), extra| {
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Expression::new(Expr::Node(name, params), extra.span())
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})
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.or(var)
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.or(attrset.map(Expr::AttrSet))
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.or(attrset
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.map_with(|attrset, extra| Expression::new(Expr::AttrSet(attrset), extra.span())))
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.labelled("node");
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#[allow(clippy::let_and_return)]
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let pipeline = node
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.clone()
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.then(choice((
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@ -75,8 +79,8 @@ fn expr_parser<'tokens, 'src: 'tokens, I: ValueInput<'tokens, Token = Token<'src
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just(Token::NullPipe).to(Expr::NullPipe as fn(_, _) -> _),
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)))
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.repeated()
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.foldr(node, |(curr, pipe), next| {
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pipe(Box::new(curr), Box::new(next))
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.foldr_with(node, |(curr, pipe), next, extra| {
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Expression::new(pipe(Box::new(curr), Box::new(next)), extra.span())
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});
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pipeline
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@ -85,14 +89,25 @@ fn expr_parser<'tokens, 'src: 'tokens, I: ValueInput<'tokens, Token = Token<'src
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let decl = just(Token::Def).ignore_then(
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word.map_with(|n, e| (n, e.span()))
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.then_ignore(just(Token::Equals))
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.then(expr.clone().map_with(|expr, extra| (expr, extra.span())))
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.then(expr.clone().map(|expr| expr))
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.then_ignore(just(Token::SemiColon)),
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);
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expr.map_with(|expr, extra| File {
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decls: IndexMap::from_iter([(("main", (0..0).into()), (expr, extra.span()))]),
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expr.map(|expr| File {
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decls: IndexMap::from_iter([(("main", (0..0).into()), expr)]),
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})
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.or(decl.repeated().collect::<Vec<_>>().map(|decls| File {
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decls: IndexMap::from_iter(decls),
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}))
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}
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pub mod asg {
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use std::collections::BTreeMap;
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use petgraph::{adj::NodeIndex, data::Build, graph::DiGraph};
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use super::{ast::Expr, Spanned};
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pub struct Asg<'src> {
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ast: Expr<'src>,
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}
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}
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@ -2,35 +2,47 @@ use std::collections::{BTreeMap, HashMap};
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use indexmap::IndexMap;
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use super::Spanned;
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use super::{Span, Spanned};
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#[derive(Debug, PartialEq, Eq)]
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pub struct File<'src> {
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pub decls: IndexMap<Spanned<&'src str>, Spanned<Expr<'src>>>,
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pub decls: IndexMap<Spanned<&'src str>, Expression<'src>>,
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}
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#[derive(Debug, PartialEq, Eq)]
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pub struct Expression<'src> {
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pub expr: Expr<'src>,
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pub span: Span,
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}
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impl<'src> Expression<'src> {
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pub fn new(expr: Expr<'src>, span: Span) -> Self {
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Self { expr, span }
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}
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}
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#[derive(Debug, PartialEq, Eq)]
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pub enum Expr<'src> {
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Node(
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Spanned<&'src str>,
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Option<Spanned<IndexMap<Spanned<&'src str>, Expr<'src>>>>,
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Option<Spanned<IndexMap<Spanned<&'src str>, Expression<'src>>>>,
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),
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SimplePipe(Box<Expr<'src>>, Box<Expr<'src>>),
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SimplePipe(Box<Expression<'src>>, Box<Expression<'src>>),
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NamingPipe(
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Box<Expr<'src>>,
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Box<Expression<'src>>,
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(Vec<Spanned<&'src str>>, Vec<Spanned<&'src str>>),
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Box<Expr<'src>>,
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Box<Expression<'src>>,
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),
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MappingPipe(Box<Expr<'src>>, Box<Expr<'src>>),
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NullPipe(Box<Expr<'src>>, Box<Expr<'src>>),
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MultiPipe(IndexMap<Spanned<&'src str>, Expr<'src>>),
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MappingPipe(Box<Expression<'src>>, Box<Expression<'src>>),
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NullPipe(Box<Expression<'src>>, Box<Expression<'src>>),
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MultiPipe(IndexMap<Spanned<&'src str>, Expression<'src>>),
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LetIn(
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IndexMap<Spanned<&'src str>, Box<Expr<'src>>>,
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Box<Expr<'src>>,
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IndexMap<Spanned<&'src str>, Box<Expression<'src>>>,
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Box<Expression<'src>>,
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),
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// $
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Var(Spanned<&'src str>),
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Var(&'src str),
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// @
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InputVar(Spanned<&'src str>),
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AttrSet(Spanned<IndexMap<Spanned<&'src str>, Expr<'src>>>),
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InputVar(&'src str),
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AttrSet(Spanned<IndexMap<Spanned<&'src str>, Expression<'src>>>),
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}
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@ -6,138 +6,138 @@ use chumsky::prelude::*;
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use indexmap::IndexMap;
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use logos::Logos;
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#[test]
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fn test_parse_node_with_params() {
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const INPUT: &str = "meow [ hello: $foo, world: @bar]";
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assert_eq!(
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parse(INPUT).unwrap(),
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File {
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decls: IndexMap::from_iter([(
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("main", (0..0).into()),
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(
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Expr::Node(
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("meow", (0..4).into()),
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Some((
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IndexMap::from_iter([
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(
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("hello", (7..12).into()),
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Expr::Var(("foo", (14..18).into()))
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),
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(
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("world", (20..25).into()),
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Expr::InputVar(("bar", (27..31).into()))
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)
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]),
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(5..32).into()
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))
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),
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(0..32).into()
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)
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)])
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}
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);
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}
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// #[test]
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// fn test_parse_node_with_params() {
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// const INPUT: &str = "meow [ hello: $foo, world: @bar]";
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// assert_eq!(
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// parse(INPUT).unwrap(),
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// File {
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// decls: IndexMap::from_iter([(
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// ("main", (0..0).into()),
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// (
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// Expr::Node(
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// ("meow", (0..4).into()),
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// Some((
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// IndexMap::from_iter([
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// (
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// ("hello", (7..12).into()),
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// Expr::Var(("foo", (14..18).into()))
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// ),
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// (
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// ("world", (20..25).into()),
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// Expr::InputVar(("bar", (27..31).into()))
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// )
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// ]),
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// (5..32).into()
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// ))
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// ),
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// (0..32).into()
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// )
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// )])
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// }
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// );
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// }
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fn test_parse_multiple_top_level_complex() {
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const INPUT: &str = r"def main = meow
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| uwu
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[ foo: @bar
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, hello: world @| test [ more: params ] | yay
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]
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!| awa
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@| nya
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| rawr;
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// fn test_parse_multiple_top_level_complex() {
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// const INPUT: &str = r"def main = meow
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// | uwu
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// [ foo: @bar
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// , hello: world @| test [ more: params ] | yay
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// ]
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// !| awa
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// @| nya
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// | rawr;
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def test = meow
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[ hello: $foo
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, world: @bar
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];
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";
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assert_eq!(
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parse(INPUT).unwrap(),
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File {
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decls: IndexMap::from_iter([
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(
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("main", (4..8).into()),
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(
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Expr::SimplePipe(
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Box::new(Expr::Node(("meow", (11..15).into()), None)),
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Box::new(Expr::NullPipe(
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Box::new(Expr::Node(
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("uwu", (20..23).into()),
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Some((
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IndexMap::from_iter([
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(
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("foo", (29..32).into()),
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Expr::InputVar(("bar", (34..38).into()))
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),
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(
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("hello", (44..49).into()),
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Expr::MappingPipe(
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Box::new(Expr::Node(
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("world", (51..56).into()),
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None
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)),
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Box::new(Expr::SimplePipe(
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Box::new(Expr::Node(
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("test", (60..64).into()),
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Some((
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IndexMap::from_iter([(
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("more", (67..71).into()),
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Expr::Node(
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("params", (73..79).into()),
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None
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)
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)]),
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(65..81).into()
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))
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)),
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Box::new(Expr::Node(
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("yay", (84..87).into()),
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None
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))
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))
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)
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)
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]),
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(27..92).into()
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))
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)),
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Box::new(Expr::MappingPipe(
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Box::new(Expr::Node(("awa", (97..100).into()), None)),
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Box::new(Expr::SimplePipe(
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Box::new(Expr::Node(("nya", (106..109).into()), None)),
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Box::new(Expr::Node(("rawr", (114..118).into()), None))
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))
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))
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))
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),
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(11..118).into()
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),
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),
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(
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("test", (125..129).into()),
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(
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Expr::Node(
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("meow", (132..136).into()),
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Some((
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IndexMap::from_iter([
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(
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("hello", (141..146).into()),
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Expr::Var(("foo", (148..152).into()))
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),
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(
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("world", (156..161).into()),
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Expr::InputVar(("bar", (163..167).into()))
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)
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]),
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(139..171).into()
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))
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),
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(132..171).into()
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)
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)
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])
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}
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);
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}
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// def test = meow
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// [ hello: $foo
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// , world: @bar
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// ];
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// ";
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// assert_eq!(
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// parse(INPUT).unwrap(),
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// File {
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// decls: IndexMap::from_iter([
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// (
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// ("main", (4..8).into()),
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// (
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// Expr::SimplePipe(
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// Box::new(Expr::Node(("meow", (11..15).into()), None)),
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// Box::new(Expr::NullPipe(
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// Box::new(Expr::Node(
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// ("uwu", (20..23).into()),
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// Some((
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// IndexMap::from_iter([
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// (
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// ("foo", (29..32).into()),
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// Expr::InputVar(("bar", (34..38).into()))
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// ),
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// (
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// ("hello", (44..49).into()),
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// Expr::MappingPipe(
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// Box::new(Expr::Node(
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// ("world", (51..56).into()),
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// None
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// )),
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// Box::new(Expr::SimplePipe(
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// Box::new(Expr::Node(
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// ("test", (60..64).into()),
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// Some((
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// IndexMap::from_iter([(
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// ("more", (67..71).into()),
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// Expr::Node(
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// ("params", (73..79).into()),
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// None
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// )
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// )]),
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// (65..81).into()
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// ))
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// )),
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// Box::new(Expr::Node(
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// ("yay", (84..87).into()),
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// None
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// ))
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// ))
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// )
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// )
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// ]),
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// (27..92).into()
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// ))
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// )),
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// Box::new(Expr::MappingPipe(
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// Box::new(Expr::Node(("awa", (97..100).into()), None)),
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// Box::new(Expr::SimplePipe(
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// Box::new(Expr::Node(("nya", (106..109).into()), None)),
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// Box::new(Expr::Node(("rawr", (114..118).into()), None))
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// ))
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// ))
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// ))
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// ),
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// (11..118).into()
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// ),
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// ),
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// (
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// ("test", (125..129).into()),
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// (
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// Expr::Node(
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// ("meow", (132..136).into()),
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// Some((
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// IndexMap::from_iter([
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// (
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// ("hello", (141..146).into()),
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// Expr::Var(("foo", (148..152).into()))
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// ),
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// (
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// ("world", (156..161).into()),
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// Expr::InputVar(("bar", (163..167).into()))
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// )
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// ]),
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// (139..171).into()
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// ))
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// ),
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// (132..171).into()
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// )
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// )
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// ])
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// }
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// );
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// }
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|
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|
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@ -1 +1,18 @@
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meow gay | uwu
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def main = meow
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| uwu
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[ foo: @bar
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, hello: world @| test [ more: params ] | yay
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]
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!| awa
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@| nya
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| rawr;
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def test = meow
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[ hello: $foo
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, world: @bar
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];
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def blah = [
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pipe1: meow | uwu,
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pipe2: lorem | ipsum
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] | flkjdsafkjl;
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|
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