improve json output

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

1 files changed, 6 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))]