Throw error on wrong number of arguments

1 files changed, 16 insertions, 2 deletions

diff --git a/src/main/java/org/zwobble/couscous/values/MethodValue.java b/src/main/java/org/zwobble/couscous/values/MethodValue.java
index 38ef1d5..fe23f94 100644
--- a/src/main/java/org/zwobble/couscous/values/MethodValue.java
+++ b/src/main/java/org/zwobble/couscous/values/MethodValue.java
@@ -1,7 +1,21 @@
 package org.zwobble.couscous.values;
 
 import java.util.List;
+import java.util.function.BiFunction;
 
-public interface MethodValue {
-    InterpreterValue call(List<InterpreterValue> arguments);
+import org.zwobble.couscous.interpreter.Arguments;
+
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.Value;
+
+@Value
+public class MethodValue<T> {
+    List<ConcreteType<?>> argumentTypes;
+    @Getter(value=AccessLevel.NONE)
+    BiFunction<T, Arguments, InterpreterValue> apply;
+    
+    public InterpreterValue apply(T receiver, Arguments arguments) {
+        return apply.apply(receiver, arguments);
+    }
 }