iter 22b.3.5: fix — quality-review (chained-call test, hoist class_index, drop noise comments)

crates/ailang-check/src/mono.rs

@@ -74,14 +74,10 @@ pub fn monomorphise_workspace(ws: &Workspace) -> Result<Workspace> {
         return Ok(ws.clone());
     }
 
-    // Take ownership of a mutable workspace clone; the pass
-    // appends synthesised defs to per-module def lists.
     let mut ws_owned: Workspace = ws.clone();
     let env = build_workspace_env(&ws_owned);
+    let class_index = build_class_index(&ws_owned);
 
-    // Dedup set: every (class, method, type-hash) we have already
-    // synthesised. Once a key is here, future collection rounds
-    // skip it.
     let mut synthesised: BTreeSet<(String, String, String)> = BTreeSet::new();
 
     // Fixpoint: keep collecting until a round adds nothing new.
@@ -117,7 +113,6 @@ pub fn monomorphise_workspace(ws: &Workspace) -> Result<Workspace> {
         // truth for ClassDef + InstanceDef lookups. Both come
         // from the un-modified workspace registry — synthesis
         // never mutates the registry.
-        let class_index = build_class_index(&ws_owned);
         for t in &new {
             let key = mono_target_key(t);
             let registry_key = (t.class.clone(), ailang_core::canonical::type_hash(&t.type_));
@@ -153,7 +148,6 @@ pub fn monomorphise_workspace(ws: &Workspace) -> Result<Workspace> {
         }
     }
 
-    // Task 6 will splice the call-site rewrite here.
     Ok(ws_owned)
 }