add return types to builtins

1 files changed, 4 insertions, 4 deletions

diff --git a/neb/std/boolean.py b/neb/std/boolean.py
index 1d99737..973fa67 100644
--- a/neb/std/boolean.py
+++ b/neb/std/boolean.py
@@ -14,7 +14,7 @@ def interpretOr(symbol, args, env, ns):
     return Bool(False)
 
 or_arg = Arg("arg", TypeEnum.BOOL, lazy=True)
-BOOLEAN.register("or", Builtin("or", interpretOr, [or_arg, or_arg], or_arg))
+BOOLEAN.register("or", Builtin("or", interpretOr, [or_arg, or_arg], or_arg, Type(":bool")))
 
 def interpretAnd(symbol, args, env, ns):
     # and returns false for the first expression that returns false
@@ -26,7 +26,7 @@ def interpretAnd(symbol, args, env, ns):
             return ev
     return Bool(True)
 
-BOOLEAN.register("and", Builtin("and", interpretAnd, [or_arg, or_arg], or_arg))
+BOOLEAN.register("and", Builtin("and", interpretAnd, [or_arg, or_arg], or_arg, Type(":bool")))
 
 def interpretEq(symbol, args, env, ns):
     # NOTE this currently only works for literals
@@ -37,11 +37,11 @@ def interpretEq(symbol, args, env, ns):
         return Bool(False)
 
 eq_arg = Arg("value", TypeEnum.LITERAL)
-BOOLEAN.register("eq?", Builtin("eq?", interpretEq, [eq_arg, eq_arg]))
+BOOLEAN.register("eq?", Builtin("eq?", interpretEq, [eq_arg, eq_arg], return_type=Type(":bool")))
 
 
 def interpretNot(symbol, args, env, ns):
     return Bool(not args[0].value)
 
 not_arg = Arg("not", TypeEnum.BOOL)
-BOOLEAN.register("not", Builtin("not", interpretNot, [not_arg]))
+BOOLEAN.register("not", Builtin("not", interpretNot, [not_arg], return_type=Type(":bool")))