Ignore outputs of side-effecting, element-handler functions.

[hope.git] / src / hope_gen_dictionary.erl

diff --git a/src/hope_gen_dictionary.erl b/src/hope_gen_dictionary.erl
index 0d45ecd..174ef67 100644 (file)
--- a/src/hope_gen_dictionary.erl
+++ b/src/hope_gen_dictionary.erl
@@ -15,6 +15,12 @@
 -callback get(t(K, V), K) ->
     hope_option:t(V).
 
+-callback get(t(K, V), K, V) ->
+    V.
+
+-callback get(t(K, V), K, V, fun((V) -> boolean())) ->
+    V.
+
 -callback set(t(K, V), K, V) ->
     t(K, V).
 
@@ -33,7 +39,7 @@
 -callback fold(t(K, V), fun((K, V, Acc) -> Acc), Acc) ->
     Acc.
 
--callback iter(t(K, V), fun((K, V) -> ok)) ->
+-callback iter(t(K, V), fun((K, V) -> any())) ->
     ok.
 
 %% TODO: Decide if validation is to be done. If yes - wrap in hope_result:t/1
@@ -42,3 +48,6 @@
 
 -callback to_kv_list(t(K, V)) ->
     [{K, V}].
+
+-callback has_key(t(K, _), K) ->
+    boolean().