1 files changed, 11 insertions, 0 deletions
diff --git a/src/source_unit.rs b/src/source_unit.rs
index 9c51ccb..28cc854 100644
--- a/src/source_unit.rs
+++ b/src/source_unit.rs
@@ -118,6 +118,17 @@ impl SourceUnit {
     }
 }
 
+impl PartialEq for SourceUnit {
+    fn eq(&self, other: &SourceUnit) -> bool {
+        if let Ok(this_path) = self.main.path.canonicalize() {
+            if let Ok(other_path) = other.main.path.canonicalize() {
+                return this_path == other_path;
+            }
+        }
+        return false;
+    }
+}
+
 
 pub struct SourceFile {
     pub path: PathBuf,