Handle missing methods in one place

1 files changed, 3 insertions, 2 deletions

diff --git a/src/main/java/org/zwobble/couscous/interpreter/Evaluator.java b/src/main/java/org/zwobble/couscous/interpreter/Evaluator.java
index 7a57137..7aba54b 100644
--- a/src/main/java/org/zwobble/couscous/interpreter/Evaluator.java
+++ b/src/main/java/org/zwobble/couscous/interpreter/Evaluator.java
@@ -65,7 +65,8 @@ public class Evaluator implements ExpressionNodeVisitor<InterpreterValue> {
             .stream()
             .map(argument -> eval(argument))
             .collect(Collectors.toList());
-        // TODO: handle missing methods
-        return receiver.callMethod(methodCall.getMethodName(), arguments);
+        val method = receiver.getMethod(methodCall.getMethodName())
+            .orElseThrow(() -> new NoSuchMethod(methodCall.getMethodName()));
+        return method.call(arguments);
     }
 }