research/argus
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

add Expr type for union of BoolExpr or NumExpr

Browse source
This commit is contained in:
Anand Balakrishnan 2023-09-29 13:59:39 -07:00
parent 7c81b30a8f
commit 6632e897ba
6 changed files with 32 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

13
argus-parser/src/parser.rs
View file

@ -1,18 +1,19 @@
use std::{env, fmt, fs};
use ariadne::{sources, Color, Label, Report, ReportKind};
use chumsky::{input::SpannedInput, prelude::*};
use chumsky::input::SpannedInput;
use chumsky::prelude::*;
use crate::lexer::{lexer, Span, Token};
use crate::lexer::{lexer, Error as LexError, Span, Token};
pub type Spanned<T> = (T, Span);
// The type of the input that our parser operates on. The input is the `&[(Token, Span)]` token buffer generated by the
// lexer, wrapped in a `SpannedInput` which 'splits' it apart into its constituent parts, tokens and spans, for chumsky
// The type of the input that our parser operates on. The input is the `&[(Token,
// Span)]` token buffer generated by the lexer, wrapped in a `SpannedInput` which
// 'splits' it apart into its constituent parts, tokens and spans, for chumsky
// to understand.
type ParserInput<'tokens, 'src> = SpannedInput<Token<'src>, Span, &'tokens [(Token<'src>, Span)]>;
pub fn parser<'tokens, 'src: 'tokens>(
) -> impl Parser<'tokens, ParserInput<'tokens, 'src>, Spanned<Expr<'src>>, extra::Err<Rich<'tokens, Token<'src>, Span>>>
+ Clone {
) -> impl Parser<'tokens, ParserInput<'tokens, 'src>, Spanned<Expr<'src>>, LexError<'src>> + Clone {
}