A fairly major refactor / simplification.

src/pass_result.rs

@@ -0,0 +1,36 @@
+pub mod errors;
+pub mod warnings;
+
+use crate::syntax::ParserError;
+
+pub use self::errors::Error;
+pub use self::warnings::Warning;
+
+pub struct PassResult<T> {
+    pub result: Option<T>,
+    pub warnings: Vec<Warning>,
+    pub errors: Vec<Error>,
+}
+
+impl<T> From<ParserError> for PassResult<T> {
+    fn from(value: ParserError) -> Self {
+        PassResult {
+            result: None,
+            warnings: vec![],
+            errors: vec![Error::ParserError(value)],
+        }
+    }
+}
+
+impl<T, E> From<E> for PassResult<T>
+where
+    Error: From<E>,
+{
+    fn from(x: E) -> Self {
+        PassResult {
+            result: None,
+            warnings: vec![],
+            errors: vec![Error::from(x)],
+        }
+    }
+}