fix(coverage): better find of loc start byte position (#8958)

matter-labs · Sep 25, 2024 · 8d5a66d · 8d5a66d
1 parent 883bb1c
commit 8d5a66d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/crates/evm/coverage/src/analysis.rs b/crates/evm/coverage/src/analysis.rs
@@ -470,12 +470,14 @@ impl<'a> ContractVisitor<'a> {
     }
 
     fn source_location_for(&self, loc: &ast::LowFidelitySourceLocation) -> SourceLocation {
+        let loc_start =
+            self.source.char_indices().map(|(i, _)| i).nth(loc.start).unwrap_or_default();
         SourceLocation {
             source_id: self.source_id,
             contract_name: self.contract_name.clone(),
             start: loc.start as u32,
             length: loc.length.map(|x| x as u32),
-            line: self.source[..loc.start].lines().count(),
+            line: self.source[..loc_start].lines().count(),
         }
     }
 }