2024-09-10 05:04:30 +00:00
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use annotate_snippets::{Level, Renderer, Snippet};
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2024-09-12 04:39:31 +00:00
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use crate::{vm::VmError, LexError, ParseError, Span};
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2024-09-07 08:34:03 +00:00
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2024-09-07 16:15:47 +00:00
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#[derive(Debug, PartialEq)]
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2024-09-07 08:34:03 +00:00
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pub enum DustError<'src> {
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2024-09-07 16:15:47 +00:00
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Lex {
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2024-09-07 08:34:03 +00:00
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error: LexError,
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source: &'src str,
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},
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2024-09-07 16:15:47 +00:00
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Parse {
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2024-09-07 08:34:03 +00:00
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error: ParseError,
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source: &'src str,
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},
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2024-09-12 04:39:31 +00:00
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Runtime {
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error: VmError,
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source: &'src str,
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},
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2024-09-07 08:34:03 +00:00
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}
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2024-09-10 05:04:30 +00:00
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impl<'src> DustError<'src> {
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pub fn report(&self) -> String {
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let mut report = String::new();
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let renderer = Renderer::styled();
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match self {
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2024-09-12 04:39:31 +00:00
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DustError::Runtime { error, source } => {
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let position = error.position();
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let label = format!("Runtime error: {}", error.description());
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let details = error
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.details()
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.unwrap_or_else(|| "While running this code".to_string());
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let message = Level::Error.title(&label).snippet(
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Snippet::source(source)
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2024-10-13 11:14:12 +00:00
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.fold(false)
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2024-09-12 04:39:31 +00:00
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.annotation(Level::Error.span(position.0..position.1).label(&details)),
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);
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report.push_str(&renderer.render(message).to_string());
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}
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2024-09-10 07:42:25 +00:00
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DustError::Parse { error, source } => {
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let position = error.position();
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2024-09-10 13:26:05 +00:00
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let label = format!("Parse error: {}", error.description());
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let details = error
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.details()
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.unwrap_or_else(|| "While parsing this code".to_string());
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let message = Level::Error.title(&label).snippet(
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Snippet::source(source)
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2024-10-13 11:14:12 +00:00
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.fold(false)
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2024-09-10 13:26:05 +00:00
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.annotation(Level::Error.span(position.0..position.1).label(&details)),
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2024-09-10 05:04:30 +00:00
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);
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report.push_str(&renderer.render(message).to_string());
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}
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_ => todo!(),
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}
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report
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}
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}
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2024-09-10 13:26:05 +00:00
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pub trait AnnotatedError {
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fn title() -> &'static str;
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fn description(&self) -> &'static str;
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fn details(&self) -> Option<String>;
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fn position(&self) -> Span;
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}
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