forked from AbleOS/ableos_userland
75 lines
2.3 KiB
Rust
75 lines
2.3 KiB
Rust
#![feature(result_option_inspect)]
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#![allow(non_snake_case)]
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use std::path::Path;
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use codespan_reporting::{
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diagnostic::Label,
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term::{termcolor::StandardStream, Config},
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};
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use crate::lexer::Spanned;
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mod ast;
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mod lexer;
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mod parser;
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//const TEST: &str = include_str!("../assets/why.idl");
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fn main() {
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let mut args = std::env::args();
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args.next().unwrap();
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if let Some(file) = args.next() {
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let path = Path::new(&file);
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dbg!(path);
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let codespan_file = codespan_reporting::files::SimpleFile::new(
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&file,
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std::fs::read_to_string(path).unwrap(),
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);
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let writer = StandardStream::stdout(codespan_reporting::term::termcolor::ColorChoice::Auto);
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let config = Config::default();
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match parser::parse(codespan_file.source()) {
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Ok(ast) => println!("SUCCESS: \n{:#?}", ast),
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Err(e) => {
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let msg = e.to_string();
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let label = match e {
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parser::ParserError::UnexpectedEOF => Label::primary(
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(),
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(codespan_file.source().len() - 1)..codespan_file.source().len(),
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)
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.with_message("Unexpected end of file here"),
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parser::ParserError::Unexpected(expected, Spanned(got, span)) => {
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Label::primary((), span.0)
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.with_message(format!("Unexpected `{got}`, expected {expected}"))
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}
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parser::ParserError::PleaseStopParsingUse => unsafe {
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std::hint::unreachable_unchecked()
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},
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};
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let diagnostic = codespan_reporting::diagnostic::Diagnostic::error()
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.with_message(msg)
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.with_labels(vec![label]);
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codespan_reporting::term::emit(
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&mut writer.lock(),
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&config,
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&codespan_file,
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&diagnostic,
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)
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.unwrap();
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}
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}
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} else {
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eprintln!("No file given. Aborting.");
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}
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}
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#[macro_export]
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macro_rules! unwrap_match {
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($x:expr, $m:pat => $a:expr) => {
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match $x {
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$m => $a,
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_ => unreachable!(),
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}
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};
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}
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