More error context for scan_rust_file

declantsien · Apr 10, 2024 · f5859c0 · f5859c0
1 parent 049db26
commit f5859c0
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Showing 3 changed files with 7 additions and 1 deletion.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/crates/lisp-doc/Cargo.toml b/crates/lisp-doc/Cargo.toml
@@ -7,6 +7,7 @@ edition = "2021"
 [dependencies]
 lisp-util.path = "../lisp-util"
 darling = "0.20"
+anyhow = "1.0"
 lazy_static.workspace = true
 libc.workspace = true
 regex.workspace = true

diff --git a/crates/lisp-doc/docfile.rs b/crates/lisp-doc/docfile.rs
@@ -48,7 +48,11 @@ pub unsafe extern "C" fn scan_rust_file(
 ) {
     let add_global = add_global_fp.expect("Function pointer to 'add_global' method was null");
     let filename = CStr::from_ptr(filename).to_str().unwrap();
-    let fp = BufReader::new(File::open(&*filename).unwrap());
+    let fp = BufReader::new(
+        File::open(&*filename)
+            .map_err(|e| anyhow::format_err!("{:?}: {:?}", &*filename, e))
+            .unwrap(),
+    );
 
     let mut in_docstring = false;
     let mut docstring = String::new();