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rustc_span: avoid unnecessary cloning in byte_pos_to_line_and_col

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Tyson Nottingham 2020-09-20 17:40:37 -07:00
commit 8da2a5a27c
1 changed files with 2 additions and 2 deletions
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4
compiler/rustc_span/src/caching_source_map_view.rs
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@ -84,10 +84,10 @@ impl<'sm> CachingSourceMapView<'sm> {
let file_valid; let file_valid;
if self.source_map.files().len() > 0 { if self.source_map.files().len() > 0 {
let file_index = self.source_map.lookup_source_file_idx(pos); let file_index = self.source_map.lookup_source_file_idx(pos);
let file = self.source_map.files()[file_index].clone(); let file = &self.source_map.files()[file_index];
if file_contains(&file, pos) { if file_contains(&file, pos) {
cache_entry.file = file; cache_entry.file = file.clone();
cache_entry.file_index = file_index; cache_entry.file_index = file_index;
file_valid = true; file_valid = true;
} else { } else {