add demo lint: bool_comparison

1 files changed, 45 insertions, 5 deletions

diff --git a/lib/src/lib.rs b/lib/src/lib.rs
index 31e1bb2..537f4b3 100644
--- a/lib/src/lib.rs
+++ b/lib/src/lib.rs
@@ -1,7 +1,47 @@
-#[cfg(test)]
-mod tests {
-    #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
+pub mod lints;
+
+use rnix::{SyntaxElement, SyntaxKind, TextRange};
+use std::ops::Deref;
+
+pub trait Rule {
+    fn validate(&self, node: &SyntaxElement) -> Option<Diagnostic>;
+}
+
+#[derive(Debug)]
+pub struct Diagnostic {
+    pub at: TextRange,
+    pub message: String,
+}
+
+impl Diagnostic {
+    pub fn new(at: TextRange, message: String) -> Self {
+        Self { at, message }
     }
 }
+
+pub trait Metadata {
+    fn name(&self) -> &str;
+    fn note(&self) -> &str;
+    fn match_with(&self, with: &SyntaxKind) -> bool;
+}
+
+pub trait Lint: Metadata + Rule + Send + Sync {}
+
+// #[macro_export]
+// macro_rules! lint_map {
+//     ($($s:ident),*,) => {
+//         lint_map($($s),*);
+//     }
+//     ($($s:ident),*) => {
+//         use ::std::collections::HashMap;
+//         use rnix::SyntaxKind;
+//         $(
+//             mod $s;
+//         )*
+//         ::lazy_static::lazy_static! {
+//             pub static ref RULES: HashMap<SyntaxKind, &'static Box<dyn $crate::Lint>> = {
+//                 vec![$(&*$s::LINT,)*]
+//             }
+//         }
+//     }
+// }