X-Git-Url: https://git.xandkar.net/?p=hope.git;a=blobdiff_plain;f=src%2Fhope_result.erl;h=5d0ea7e42c40521a8a24f65b0fa0ce7f4701153c;hp=a40629a1c52b58629b7a169dc8847c3f93bf83d0;hb=ed9905af6fa1dba6f89759d6dbfc970426122bde;hpb=2a40de4f9404d67967ad486d7d10b354791105fe

diff --git a/src/hope_result.erl b/src/hope_result.erl
index a40629a..5d0ea7e 100644
--- a/src/hope_result.erl
+++ b/src/hope_result.erl
@@ -16,6 +16,13 @@
     .
 
 
+-spec pipe([F], X) ->
+    t(Ok, Error)
+    when X     :: any()
+       , Ok    :: any()
+       , Error :: any()
+       , F     :: fun((X) -> t(Ok, Error))
+       .
 pipe([]    , X) -> X;
 pipe([F|Fs], X) ->
     case F(X)