X-Git-Url: https://git.xandkar.net/?p=hope.git;a=blobdiff_plain;f=src%2Fhope_option.erl;h=c461d04d1b70d3bbd292e954aa21c55eb4921c5e;hp=622c06df92fd59b2df7df5c3a1e80aba8876fe65;hb=ed9905af6fa1dba6f89759d6dbfc970426122bde;hpb=2a40de4f9404d67967ad486d7d10b354791105fe

diff --git a/src/hope_option.erl b/src/hope_option.erl
index 622c06d..c461d04 100644
--- a/src/hope_option.erl
+++ b/src/hope_option.erl
@@ -18,14 +18,20 @@
     .
 
 
+-spec put(A, fun((A) -> boolean())) ->
+    t(A).
 put(X, F) ->
     case F(X)
     of  true  -> {some, X}
     ;   false -> none
     end.
 
+-spec get(t(A), Default :: A) ->
+    A.
 get({some, X}, _) -> X;
 get(none     , Y) -> Y.
 
+-spec map(t(A), fun((A) -> (B))) ->
+    t(B).
 map({some, X}, F) -> {some, F(X)};
 map(none     , _) -> none.