6 files changed, 7 insertions, 0 deletions
diff --git a/src/gleam/any.gleam b/src/gleam/any.gleam
index 5f0d5e3..611d4fd 100644
--- a/src/gleam/any.gleam
+++ b/src/gleam/any.gleam
@@ -46,6 +46,7 @@ pub fn list(any, decode) {
   |> result.then(_, list_mod.traverse(_, decode))
 }
 
+// TODO: replace struct with Pair
 pub external fn struct2(Any) -> Result(struct(Any, Any), String)
   = "gleam__stdlib" "decode_struct2"
 
diff --git a/src/gleam/bool.gleam b/src/gleam/bool.gleam
index 438c232..81e0cea 100644
--- a/src/gleam/bool.gleam
+++ b/src/gleam/bool.gleam
@@ -7,6 +7,7 @@ pub fn negate(bool) {
   }
 }
 
+// TODO: replace struct with Pair
 pub fn compare(a, b) {
   case struct(a, b) {
   | struct(True, True) -> order.Eq
diff --git a/src/gleam/list.gleam b/src/gleam/list.gleam
index 7b13760..195e1b5 100644
--- a/src/gleam/list.gleam
+++ b/src/gleam/list.gleam
@@ -187,6 +187,7 @@ pub fn any(list, f) {
   }
 }
 
+// TODO: replace struct with Pair
 pub fn zip(l1, l2) {
   case struct(l1, l2) {
     | struct([], _) -> []
diff --git a/src/gleam/map.gleam b/src/gleam/map.gleam
index 5e24816..ba03b78 100644
--- a/src/gleam/map.gleam
+++ b/src/gleam/map.gleam
@@ -88,6 +88,7 @@ pub fn update(dict, key, f) {
 }
 
 fn do_fold(list, acc, f) {
+  // TODO: replace struct with Pair
   case list {
     | [] -> acc
     | [struct(k, v) | tail] -> do_fold(tail, f(k, v, acc), f)
diff --git a/src/gleam/order.gleam b/src/gleam/order.gleam
index 48a4b40..5913479 100644
--- a/src/gleam/order.gleam
+++ b/src/gleam/order.gleam
@@ -20,6 +20,7 @@ pub fn to_int(order) {
   }
 }
 
+// TODO: replace struct with Pair
 pub fn compare(a, b) {
   case struct(a, b) {
   | struct(Lt, Lt) -> Eq
diff --git a/src/gleam/tuple.gleam b/src/gleam/tuple.gleam
index 03ee14d..88c2a6a 100644
--- a/src/gleam/tuple.gleam
+++ b/src/gleam/tuple.gleam
@@ -1,5 +1,7 @@
 import gleam/list
 
+// TODO: replace struct with Pair
+
 pub fn new(a, b) {
   struct(a, b)
 }