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test: snapshot for derive suggestion in diff files

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This commit is contained in:
bohan 2023-02-04 18:55:33 +08:00
parent 7ba4e95368
commit 7615045ebd
3 changed files with 135 additions and 11 deletions
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22
compiler/rustc_errors/src/emitter.rs
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@ -1796,17 +1796,17 @@ impl EmitterWriter {
// telling users to make a change but not clarifying *where*.
let loc = sm.lookup_char_pos(parts[0].span.lo());
if loc.file.name != sm.span_to_filename(span) && loc.file.name.is_real() {
buffer.puts(row_num - 1, 0, "--> ", Style::LineNumber);
buffer.append(
row_num - 1,
&format!(
"{}:{}:{}",
sm.filename_for_diagnostics(&loc.file.name),
sm.doctest_offset_line(&loc.file.name, loc.line),
loc.col.0 + 1,
),
Style::LineAndColumn,
);
let arrow = "--> ";
buffer.puts(row_num - 1, 0, arrow, Style::LineNumber);
let filename = sm.filename_for_diagnostics(&loc.file.name);
let offset = sm.doctest_offset_line(&loc.file.name, loc.line);
let message = format!("{}:{}:{}", filename, offset, loc.col.0 + 1);
if row_num == 2 {
let col = usize::max(max_line_num_len + 1, arrow.len());
buffer.puts(1, col, &message, Style::LineAndColumn);
} else {
buffer.append(row_num - 1, &message, Style::LineAndColumn);
}
for _ in 0..max_line_num_len {
buffer.prepend(row_num - 1, " ", Style::NoStyle);
}