diff --git a/ps5/src/generator.c b/ps5/src/generator.c
index 8ed1c59..8401199 100644
--- a/ps5/src/generator.c
+++ b/ps5/src/generator.c
@@ -166,6 +166,19 @@ static void generate_expression(node_t* expression)
 {
   // TODO (Task 4.1): Generate code for evaluating the given expression.
   // (The candidates are NUMBER_LITERAL, IDENTIFIER, ARRAY_INDEXING, OPERATOR and FUNCTION_CALL)
+  switch (expression->type) {
+  case NUMBER_LITERAL:
+
+    break;
+  case IDENTIFIER:
+    break;
+  case ARRAY_INDEXING:
+    break;
+  case OPERATOR:
+    break;
+  case FUNCTION_CALL:
+    break;
+  }
 }
 
 static void generate_assignment_statement(node_t* statement)