forked from AbleScript/ablescript
Better error handling in REPL
We have much better spanned expression support, so now we get to show it off!
This commit is contained in:
parent
bdb32c4599
commit
39c5709db7
38
src/repl.rs
38
src/repl.rs
|
@ -15,27 +15,25 @@ pub fn repl() {
|
|||
break;
|
||||
}
|
||||
let mut parser = Parser::new(&line);
|
||||
let ast = parser.init();
|
||||
match ast {
|
||||
Ok(ast) => {
|
||||
println!("{:?}", ast);
|
||||
println!("{:?}", env.eval_stmts(&ast));
|
||||
}
|
||||
Err(e) => {
|
||||
println!(
|
||||
"Error `{:?}` occurred at span: {:?} = `{:?}`",
|
||||
e.kind,
|
||||
e.span.clone(),
|
||||
line.slice(e.span.clone())
|
||||
);
|
||||
let value = parser.init().and_then(|ast| {
|
||||
println!("{:?}", &ast);
|
||||
env.eval_stmts(&ast)
|
||||
});
|
||||
|
||||
println!(" | {}", line);
|
||||
println!(
|
||||
" {}{}-- Here",
|
||||
" ".repeat(e.span.start),
|
||||
"^".repeat((e.span.end - e.span.start).max(1))
|
||||
);
|
||||
}
|
||||
if let Err(e) = value {
|
||||
println!(
|
||||
"Error `{:?}` occurred at span: {:?} = `{:?}`",
|
||||
e.kind,
|
||||
e.span.clone(),
|
||||
line.slice(e.span.clone())
|
||||
);
|
||||
|
||||
println!(" | {}", line);
|
||||
println!(
|
||||
" {}{}-- Here",
|
||||
" ".repeat(e.span.start),
|
||||
"^".repeat((e.span.end - e.span.start).max(1))
|
||||
);
|
||||
}
|
||||
}
|
||||
Err(rustyline::error::ReadlineError::Eof) => {
|
||||
|
|
Loading…
Reference in a new issue