Add throw node

1 files changed, 6 insertions, 1 deletions

diff --git a/src/main/java/org/zwobble/couscous/interpreter/Executor.java b/src/main/java/org/zwobble/couscous/interpreter/Executor.java
index f6c1c3a..e6dad8d 100644
--- a/src/main/java/org/zwobble/couscous/interpreter/Executor.java
+++ b/src/main/java/org/zwobble/couscous/interpreter/Executor.java
@@ -96,6 +96,11 @@ public class Executor implements StatementNodeMapper<Optional<InterpreterValue>>
     }
 
     @Override
+    public Optional<InterpreterValue> visit(ThrowNode throwNode) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
     public Optional<InterpreterValue> visit(ExpressionStatementNode expressionStatement) {
         eval(environment, expressionStatement.getExpression());
         return Optional.empty();
@@ -136,4 +141,4 @@ public class Executor implements StatementNodeMapper<Optional<InterpreterValue>>
         }
         return Optional.empty();
     }
-}
\ No newline at end of file
+}