improve json output

The `at` field now includes a `from` and `to` position with line and
column information, instead of a [usize; 2].

2 files changed, 7 insertions, 0 deletions

diff --git a/lib/src/lib.rs b/lib/src/lib.rs
index 753e5c1..ec96f50 100644
--- a/lib/src/lib.rs
+++ b/lib/src/lib.rs
@@ -13,6 +13,12 @@ use serde::{
     Serialize,
 };
 
+#[cfg_attr(feature = "json-out", derive(Serialize))]
+pub struct Position {
+    line: usize,
+    column: usize,
+}
+
 /// Report generated by a lint
 #[derive(Debug, Default)]
 #[cfg_attr(feature = "json-out", derive(Serialize))]
diff --git a/lib/src/lints/manual_inherit_from.rs b/lib/src/lints/manual_inherit_from.rs
index 355ed8a..794aaf9 100644
--- a/lib/src/lints/manual_inherit_from.rs
+++ b/lib/src/lints/manual_inherit_from.rs
@@ -22,6 +22,7 @@ impl Rule for ManualInherit {
             if let Some(key_value_stmt) = KeyValue::cast(node.clone());
             if let mut key_path = key_value_stmt.key()?.path();
             if let Some(key_node) = key_path.next();
+            // ensure that path has exactly one component
             if key_path.next().is_none();
             if let Some(key) = Ident::cast(key_node);