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Diffstat (limited to 'compiler/rustc_span/src/source_map.rs')
| -rw-r--r-- | compiler/rustc_span/src/source_map.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_span/src/source_map.rs b/compiler/rustc_span/src/source_map.rs index 44aa9f72809..020ae3ad0c7 100644 --- a/compiler/rustc_span/src/source_map.rs +++ b/compiler/rustc_span/src/source_map.rs @@ -1099,6 +1099,8 @@ impl FilePathMapping { /// the path was affected by the mapping. pub fn map_prefix(&self, path: PathBuf) -> (PathBuf, bool) { if path.as_os_str().is_empty() { + // Exit early if the path is empty and therefore there's nothing to remap. + // This is mostly to reduce spam for `RUSTC_LOG=[remap_path_prefix]`. return (path, false); } |