new eval.go

stdlib/list.go

@@ -33,7 +33,7 @@ func expand(input *ast.Token, vars ast.VarTable, funcs ast.FuncTable) *ast.Token
         return input
     }
 
-    return input.Inner.(*ast.Token)
+    return input.Expand()
 }
 
 /* L_APPEND (append from repl)
@@ -45,15 +45,16 @@ func l_append(input *ast.Token, vars ast.VarTable, funcs ast.FuncTable) *ast.Tok
     src := input
 
     if input.Tag != ast.LIST {
-        // TODO: position??
-        return input
+        r := &ast.Token{Tag: ast.LIST}
+        r.Direct(input)
+        return r
     }
 
     // deref inner first
-    i := src.Inner.(*ast.Token)
+    i := src.Expand()
     iter := &i
     if *iter == nil {
-        src.Inner = input.Next
+        src.Direct(input.Next)
         src.Next = nil
 
     } else {