use actual parameter names in Arg definition

1 files changed, 1 insertions, 1 deletions

diff --git a/interpreter.py b/interpreter.py
index 2408db4..80c6a50 100644
--- a/interpreter.py
+++ b/interpreter.py
@@ -97,7 +97,7 @@ class UserFunction(Function):
     
     def __init__(self, name, params, body):
         # TODO this doesn't do type checking, or optional, or lazy
-        args = [Arg("arg", TypeEnum.ANY, False, False)] * len(params)
+        args = [Arg(p.name, TypeEnum.ANY, False, False) for p in params]
         super().__init__(name, params, body, args)
 
     def call(self, expr, env):