A wrapper for the fmt::Write objects that efficiently appends indentation
after every newline.
This type is intended primarily for writing error reporters that gracefully format error messages that span multiple lines.
Add this to your Cargo.toml:
[dependencies]
indenter = "0.2"use std::error::Error;
use std::fmt::{self, Write};
use indenter::indented;
struct ErrorReporter<'a>(&'a dyn Error);
impl fmt::Debug for ErrorReporter<'_> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut source = Some(self.0);
let mut i = 0;
while let Some(error) = source {
writeln!(f)?;
write!(indented(f).ind(i), "{}", error)?;
source = error.source();
i += 1;
}
Ok(())
}
}Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
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