so yeah that was a bunch of code

parser/src/lib.rs

@@ -32,6 +32,10 @@ impl Span {
         Self { start, end }
     }
 
+    pub fn dummy() -> Self {
+        Self::start_end(0, 0)
+    }
+
     pub fn extend(&self, rhs: Self) -> Self {
         Self::start_end(self.start, rhs.end)
     }

parser/src/parser/expr.rs

@@ -1,6 +1,6 @@
 //! The expression parser is implemented as a pratt parser.
 //!
-//! For more information, see https://matklad.github.io/2020/04/13/simple-but-powerful-pratt-parsing.html
+//! For more information, see <https://matklad.github.io/2020/04/13/simple-but-powerful-pratt-parsing.html>
 
 use crate::{
     ast::{