Prettier error handling

This commit is contained in:
Alex Bethel 2021-06-04 18:56:26 -05:00
parent 723719b9df
commit 2cb915dd24

View file

@ -20,13 +20,20 @@ pub fn repl() {
Ok(ast) => { Ok(ast) => {
println!("{:?}", ast); println!("{:?}", ast);
println!("{:?}", env.eval_items(&ast)); println!("{:?}", env.eval_items(&ast));
}, }
Err(e) => { Err(e) => {
println!( println!(
"Error `{:?}` occured at span: {:?} = `{:?}`", "Error `{:?}` occured at span: {:?} = `{:?}`",
e.kind, e.kind,
e.position.clone(), e.position.clone(),
line.slice(e.position) line.slice(e.position.clone())
);
println!(" | {}", line);
println!(
" {}{}-- Here",
" ".repeat(e.position.start),
"^".repeat((e.position.end - e.position.start).max(1))
); );
} }
} }