diff options
Diffstat (limited to 'compiler/rustc_span/src/edit_distance.rs')
-rw-r--r-- | compiler/rustc_span/src/edit_distance.rs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/compiler/rustc_span/src/edit_distance.rs b/compiler/rustc_span/src/edit_distance.rs index 96a118e59..14cb1d6d3 100644 --- a/compiler/rustc_span/src/edit_distance.rs +++ b/compiler/rustc_span/src/edit_distance.rs @@ -188,7 +188,11 @@ fn find_best_match_for_name_impl( return Some(*c); } - let mut dist = dist.unwrap_or_else(|| cmp::max(lookup.len(), 3) / 3); + // `fn edit_distance()` use `chars()` to calculate edit distance, so we must + // also use `chars()` (and not `str::len()`) to calculate length here. + let lookup_len = lookup.chars().count(); + + let mut dist = dist.unwrap_or_else(|| cmp::max(lookup_len, 3) / 3); let mut best = None; // store the candidates with the same distance, only for `use_substring_score` current. let mut next_candidates = vec![]; |