Simple semantic analysis structure

semantic/src/lib.rs

@@ -1,14 +1,3 @@
-pub fn add(left: u64, right: u64) -> u64 {
-    left + right
-}
+pub mod top_level;
 
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
-}
+pub struct Scope {}

semantic/src/top_level.rs

@@ -0,0 +1,18 @@
+use std::collections::HashMap;
+
+pub struct TypeSymbol {
+    export: bool,
+    name: String,
+}
+
+pub struct FunctionSymbol {
+    export: bool,
+    name: String,
+    params: HashMap<String, TypeSymbol>,
+}
+
+pub struct StructSymbol {
+    export: bool,
+    name: String,
+    fields: HashMap<String, TypeSymbol>,
+}