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Diffstat (limited to 'crates/load-cargo/src/lib.rs')
| -rw-r--r-- | crates/load-cargo/src/lib.rs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/crates/load-cargo/src/lib.rs b/crates/load-cargo/src/lib.rs index c8a157e88e..dc75abe7ad 100644 --- a/crates/load-cargo/src/lib.rs +++ b/crates/load-cargo/src/lib.rs @@ -540,6 +540,20 @@ impl ProcMacroExpander for Expander { current_dir: String, ) -> Result<tt::TopSubtree, ProcMacroExpansionError> { let mut cb = |req| match req { + SubRequest::LocalFileName { file_id } => { + let file = FileId::from_raw(file_id); + let source_root_id = db.file_source_root(file).source_root_id(db); + let source_root = db.source_root(source_root_id).source_root(db); + + let name = source_root + .path_for_file(&file) + .and_then(|path| path.clone().into_abs_path()) + .and_then(|path| { + path.as_path().file_name().map(|filename| filename.to_owned()) + }); + + Ok(SubResponse::LocalFileNameResult { name }) + } SubRequest::SourceText { file_id, start, end } => { let file = FileId::from_raw(file_id); let text = db.file_text(file).text(db); |