Currently "hash" gives error for List, like:
(1) -> hash [1]
>> System error:
The value
1
is not of type
CONS
The reason is that "Qfirst" in following patch is
a Lisp function without type, so compiler assumes
its type to be '%' instead of "S".
diff --git a/src/algebra/list.spad b/src/algebra/list.spad
index e3d19e51..c4c7a0d1 100644
--- a/src/algebra/list.spad
+++ b/src/algebra/list.spad
@@ -173,7 +173,7 @@ List(S : Type) : Exports == Implementation where
hashUpdate!(s : HashState, x : %) : HashState ==
while not empty? x repeat
- s := hashUpdate!(s, Qfirst x)
+ s := hashUpdate!(s, Qfirst x)$S
x := Qrest x
s
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