Remove Deref for StoreId but provide basic functions within the type

libimagstore/src/storeid.rs

@@ -35,6 +35,19 @@ impl StoreId {
         }
     }
 
+    pub fn exists(&self) -> bool {
+        let pb : PathBuf = self.clone().into();
+        pb.exists()
+    }
+
+    pub fn is_file(&self) -> bool {
+        true
+    }
+
+    pub fn is_dir(&self) -> bool {
+        false
+    }
+
 }
 
 impl Into<PathBuf> for StoreId {
@@ -58,15 +71,6 @@ impl Display for StoreId {
 
 }
 
-impl Deref for StoreId {
-    type Target = PathBuf;
-
-    fn deref(&self) -> &PathBuf {
-        &self.0
-    }
-
-}
-
 impl From<PathBuf> for StoreId {
 
     fn from(pb: PathBuf) -> StoreId {