Delete node now is replaced by deconstructor

src/main.cpp

@@ -38,5 +38,6 @@ void interpret_file(char* fileName) {
   struct Environment* env = new Environment();
   eval_statement(result, env);
   delete_environment(env);
-  delete_tree(result);
+  
+  delete result;
 }

src/operations/node.cpp

@@ -73,15 +73,6 @@ void print_tree(struct Node* node, int tabs) {
   }
 }
 
-void delete_tree(struct Node* node) {
-  if (!node) { return; }
-  for(int i = 0; i < node->num_children; i++) {
-    delete_tree(node->children[i]);
-  }
-  free(node);
-}
-
-
 
 struct Value* eval_expression(struct Node* node, struct Environment* env) {
   /* base case */

src/operations/node.hpp

@@ -28,13 +28,17 @@ struct Node {
       children[i] = nullptr;
     }
   }
+  ~Node() {
+    for (int i = 0; i < num_children; i++) {
+      delete children[i];
+    }
+  }
 };
 
 // Abstract Syntax Tree Functions
 // struct Node* make_node(int type, struct Value* value, std::string id);
 void attach_node(struct Node* parent, struct Node* child);
 void print_tree(struct Node* node, int tabs);
-void delete_tree(struct Node* node);
 
 // Interpreting AST
 void eval_statement(struct Node* node, struct Environment* env);

src/shell.cpp

@@ -70,5 +70,5 @@ void start_shell() {
     }
 
     delete_environment(env);
-    delete_tree(result);
+    delete result;
 }