68 lines
2.1 KiB
Rust
68 lines
2.1 KiB
Rust
use annotate_snippets::{Level, Renderer, Snippet};
|
|
|
|
use crate::{vm::VmError, LexError, ParseError, Span};
|
|
|
|
#[derive(Debug, PartialEq)]
|
|
pub enum DustError<'src> {
|
|
Lex {
|
|
error: LexError,
|
|
source: &'src str,
|
|
},
|
|
Parse {
|
|
error: ParseError,
|
|
source: &'src str,
|
|
},
|
|
Runtime {
|
|
error: VmError,
|
|
source: &'src str,
|
|
},
|
|
}
|
|
|
|
impl<'src> DustError<'src> {
|
|
pub fn report(&self) -> String {
|
|
let mut report = String::new();
|
|
let renderer = Renderer::styled();
|
|
|
|
match self {
|
|
DustError::Runtime { error, source } => {
|
|
let position = error.position();
|
|
let label = format!("Runtime error: {}", error.description());
|
|
let details = error
|
|
.details()
|
|
.unwrap_or_else(|| "While running this code".to_string());
|
|
let message = Level::Error.title(&label).snippet(
|
|
Snippet::source(source)
|
|
.fold(true)
|
|
.annotation(Level::Error.span(position.0..position.1).label(&details)),
|
|
);
|
|
|
|
report.push_str(&renderer.render(message).to_string());
|
|
}
|
|
DustError::Parse { error, source } => {
|
|
let position = error.position();
|
|
let label = format!("Parse error: {}", error.description());
|
|
let details = error
|
|
.details()
|
|
.unwrap_or_else(|| "While parsing this code".to_string());
|
|
let message = Level::Error.title(&label).snippet(
|
|
Snippet::source(source)
|
|
.fold(true)
|
|
.annotation(Level::Error.span(position.0..position.1).label(&details)),
|
|
);
|
|
|
|
report.push_str(&renderer.render(message).to_string());
|
|
}
|
|
_ => todo!(),
|
|
}
|
|
|
|
report
|
|
}
|
|
}
|
|
|
|
pub trait AnnotatedError {
|
|
fn title() -> &'static str;
|
|
fn description(&self) -> &'static str;
|
|
fn details(&self) -> Option<String>;
|
|
fn position(&self) -> Span;
|
|
}
|