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use super::*;
use crate::rustfmt_diff::{make_diff, ModifiedLines};
use std::io::Write;
#[derive(Debug, Default)]
pub(crate) struct ModifiedLinesEmitter;
impl Emitter for ModifiedLinesEmitter {
fn emit_formatted_file(
&mut self,
output: &mut dyn Write,
FormattedFile {
original_text,
formatted_text,
..
}: FormattedFile<'_>,
) -> Result<EmitterResult, io::Error> {
const CONTEXT_SIZE: usize = 0;
let mismatch = make_diff(original_text, formatted_text, CONTEXT_SIZE);
let has_diff = !mismatch.is_empty();
write!(output, "{}", ModifiedLines::from(mismatch))?;
Ok(EmitterResult { has_diff })
}
}