...

compiler/NubLang/Generation/QBE/QBEGenerator.cs

@@ -467,7 +467,7 @@ public class QBEGenerator
 
     private void EmitBlock(BlockNode block, Scope? scope = null)
     {
-        scope ??= Scope.SubScope();
+        scope ??= new Scope();
         _scopes.Push(scope);
 
         foreach (var statement in block.Statements)
@@ -1295,12 +1295,6 @@ public class QBEGenerator
         return new NubStructType(definition.Module, definition.Name, fieldTypes, functionTypes);
     }
 
-    private NubFuncType TypeOfFunc(FuncSignatureNode signature)
-    {
-        var parameters = signature.Parameters.Select(x => x.Type).ToList();
-        return new NubFuncType(parameters, signature.ReturnType);
-    }
-
     private string TmpName()
     {
         return $"%.t{++_tmpIndex}";
@@ -1342,16 +1336,10 @@ public class QBEGenerator
     }
 }
 
-// todo(nub31): Parent is not used when getting variables and deferred statements
-public class Scope(Scope? parent = null)
+public class Scope
 {
     public readonly Stack<StatementNode> DeferredStatements = [];
     public readonly Stack<Variable> Variables = [];
-
-    public Scope SubScope()
-    {
-        return new Scope(this);
-    }
 }
 
 public record Variable(string Name, NubType Type);