diff --git a/src/ir/mod.rs b/src/ir/mod.rs
index 66d55f3..8e2657c 100644
--- a/src/ir/mod.rs
+++ b/src/ir/mod.rs
@@ -23,7 +23,7 @@ use crate::grammar::Range;
 */
 
 /// Tag to uniquely represent a particular field
-type FieldTag = &'static str;
+pub type FieldTag = &'static str;
 
 /// Primitive value types
 #[derive(PartialEq, Debug)]
diff --git a/src/parser/mod.rs b/src/parser/mod.rs
new file mode 100644
index 0000000..b93c927
--- /dev/null
+++ b/src/parser/mod.rs
@@ -0,0 +1,10 @@
+use crate::{
+    grammar::Range,
+    ir::{Atom, FieldTag},
+};
+
+struct ParsedField<'a> {
+    range: Range,
+    name: FieldTag,
+    value: Atom<'a>,
+}