mirror of https://github.com/zkat/miette.git
60 lines
1.7 KiB
Rust
60 lines
1.7 KiB
Rust
use std::fmt;
|
|
|
|
use miette::{
|
|
Diagnostic, DiagnosticReporter, DiagnosticSnippet, MietteError, MietteReporter, SourceSpan,
|
|
};
|
|
use thiserror::Error;
|
|
|
|
#[derive(Error)]
|
|
#[error("oops!")]
|
|
struct MyBad {
|
|
message: String,
|
|
src: String,
|
|
ctx: SourceSpan,
|
|
highlight: SourceSpan,
|
|
}
|
|
|
|
impl fmt::Debug for MyBad {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
MietteReporter.debug(self, f)
|
|
}
|
|
}
|
|
|
|
impl Diagnostic for MyBad {
|
|
fn code(&self) -> Box<dyn std::fmt::Display> {
|
|
Box::new(&"oops::my::bad")
|
|
}
|
|
|
|
fn help(&self) -> Option<Box<dyn std::fmt::Display>> {
|
|
Some(Box::new(&"try doing it better next time?"))
|
|
}
|
|
|
|
fn snippets(&self) -> Option<Box<dyn Iterator<Item = DiagnosticSnippet> + '_>> {
|
|
Some(Box::new(
|
|
vec![DiagnosticSnippet {
|
|
message: Some(self.message.as_ref()),
|
|
source: &self.src,
|
|
context: self.ctx.clone(),
|
|
highlights: Some(vec![self.highlight.clone()]),
|
|
}]
|
|
.into_iter(),
|
|
))
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn fancy() -> Result<(), MietteError> {
|
|
let src = "source\n text\n here".to_string();
|
|
let len = src.len();
|
|
let err = MyBad {
|
|
message: "This is the part that broke".into(),
|
|
src,
|
|
ctx: ("bad_file.rs", 0, len).into(),
|
|
highlight: ("this bit here", 9, 4).into(),
|
|
};
|
|
let out = format!("{:?}", err);
|
|
// println!("{}", out);
|
|
assert_eq!("Error[oops::my::bad]: oops!\n\n[bad_file.rs] This is the part that broke:\n\n 1 | source\n 2 | text\n ⫶ | ^^^^ this bit here\n 3 | here\n\n﹦try doing it better next time?\n".to_string(), out);
|
|
Ok(())
|
|
}
|