fix memory leak in declaration and function

src/parser/function/function.c

@@ -1,5 +1,6 @@
 #include "function.h"
 #include "../../memory.h"
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -15,11 +16,17 @@ ParsedValue *create_parsed_function(char *name, DArray parameters,
   return parsedValue;
 }
 
+void free_parameter(void *ptr) {
+  char** data = ptr;
+  free(*data);
+}
+
 void free_function(void *ptr) {
   ParsedValue *parsedValue = ptr;
   ParsedFunction *parsed = parsedValue->data;
   free_parsed(parsed->body);
+  free(parsed->body);
   free(parsed->name);
-  darray_free(&parsed->parameters, NULL);
+  darray_free(&parsed->parameters, free_parameter);
   free(parsed);
 }