From b825e4cb42884cea3a7e8bf0ff74183a326f5d1b Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sat, 4 Mar 2023 12:41:02 +0100
Subject: refactor: improve parsing error message

---
 src/lib.rs | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index fddc1fb..f1e15cb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -87,8 +87,18 @@ impl ReferenceEntry
         let function_ref_content = function_file.contents();
 
         let mut parser = Parser::new(function_ref_content);
-
-        let root_elements = parser.parse()?;
+        let root_elements =
+            parser
+                .parse()
+                .map_err(|err| ReferenceEntryError::ParsingFailed {
+                    source: err,
+                    entry_name: function_file
+                        .path()
+                        .file_stem()
+                        .unwrap_or_else(|| OsStr::new("(unknown)"))
+                        .to_string_lossy()
+                        .to_string(),
+                })?;
 
         ReferenceEntry::from_elements(&root_elements).map_err(|err| {
             ReferenceEntryError::Invalid {
@@ -189,8 +199,16 @@ pub enum ReferenceEntryError
     },
 
     /// Parsing failed.
-    #[error("Parsing failed")]
-    ParsingFailed(#[from] ParserError),
+    #[error("Failed to parse reference entry '{entry_name}'")]
+    ParsingFailed
+    {
+        /// Source error.
+        #[source]
+        source: ParserError,
+
+        /// Name of the reference entry that couldn't be parsed.
+        entry_name: String,
+    },
 }
 
 /// Error for when a reference entry is invalid.
-- 
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