bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Use strip_{prefix|suffix} instead of {starts|ends}_with+indexing

Browse source
This commit is contained in:
Yotam Ofek 2025-03-16 15:54:04 +00:00
parent 8b87fefd76
commit a3e4dff183
7 changed files with 20 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

4
compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs
View file

@ -1632,8 +1632,8 @@ fn get_mut_span_in_struct_field<'tcx>(
/// If possible, suggest replacing `ref` with `ref mut`.
fn suggest_ref_mut(tcx: TyCtxt<'_>, span: Span) -> Option<Span> {
let pattern_str = tcx.sess.source_map().span_to_snippet(span).ok()?;
if pattern_str.starts_with("ref")
&& pattern_str["ref".len()..].starts_with(rustc_lexer::is_whitespace)
if let Some(rest) = pattern_str.strip_prefix("ref")
&& rest.starts_with(rustc_lexer::is_whitespace)
{
let span = span.with_lo(span.lo() + BytePos(4)).shrink_to_lo();
Some(span)