Solve bug of metacall_inspect called after the destroy of node loader has been issued. The destroy method of the node loader should be executed before any destruction of the loader structure itself.

Author: viferga

source/loader/source/loader_impl.c

@@ -487,6 +487,8 @@ void loader_impl_destroy_handle(loader_handle_impl handle_impl)
 
 		if (handle_impl->impl->init == 0)
 		{
+			log_write("metacall", LOG_LEVEL_DEBUG, "Destroying handle %s", handle_impl->name);
+
 			if (loader_impl_function_hook_call(handle_impl->ctx, func_fini_name) != 0)
 			{
 				log_write("metacall", LOG_LEVEL_ERROR, "Error when calling destructor from handle impl: %p (%s)", (void *)handle_impl, func_fini_name);
@@ -1111,12 +1113,6 @@ void loader_impl_destroy(loader_impl impl)
 	{
 		log_write("metacall", LOG_LEVEL_DEBUG, "Destroy loader implementation %s", impl->tag);
 
-		set_iterate(impl->handle_impl_map, &loader_impl_destroy_handle_map_cb_iterate, NULL);
-
-		set_iterate(impl->type_info_map, &loader_impl_destroy_type_map_cb_iterate, NULL);
-
-		set_destroy(impl->type_info_map);
-
 		if (impl->init == 0)
 		{
 			loader_impl_interface interface_impl = loader_impl_symbol(impl);
@@ -1129,12 +1125,18 @@ void loader_impl_destroy(loader_impl impl)
 			impl->init = 1;
 		}
 
+		set_iterate(impl->handle_impl_map, &loader_impl_destroy_handle_map_cb_iterate, NULL);
+
+		set_destroy(impl->handle_impl_map);
+
+		set_iterate(impl->type_info_map, &loader_impl_destroy_type_map_cb_iterate, NULL);
+
+		set_destroy(impl->type_info_map);
+
 		set_iterate(impl->exec_path_map, &loader_impl_destroy_exec_path_map_cb_iterate, NULL);
 
 		set_destroy(impl->exec_path_map);
 
-		set_destroy(impl->handle_impl_map);
-
 		context_destroy(impl->ctx);
 
 		loader_impl_dynlink_destroy(impl);

source/tests/metacall_node_python_async_after_destroy_test/source/metacall_node_python_async_after_destroy_test.cpp

@@ -42,15 +42,15 @@ TEST_F(metacall_node_python_async_after_destroy_test, DefaultConstructor)
 	{
 		static const char buffer[] =
 			/* NodeJS */
-			"const { metacall, metacall_load_from_memory } = require('" METACALL_NODE_PORT_PATH "');\n"
+			"const { metacall, metacall_load_from_memory, metacall_inspect } = require('" METACALL_NODE_PORT_PATH "');\n"
 			"metacall_load_from_memory('py', `"
 			/* Python */
 			"def sum(a, b):\n"
 			"  return a + b\n"
 			"`);\n"
 			"function log(x) { console.log(x); return x; }\n"
 			"setTimeout(() => { log(metacall('sum', 3, 4)) === 7 || process.exit(1) }, 2000);\n"
-			"setTimeout(() => { log(metacall('sum', 3, 4)) === 7 || process.exit(1) }, 4000);\n"
+			"setTimeout(() => { log(metacall_inspect()) || process.exit(1) }, 4000);\n"
 			"setTimeout(() => { log(metacall('sum', 3, 4)) === 7 || process.exit(1) }, 6000);\n";
 
 		ASSERT_EQ((int)0, (int)metacall_load_from_memory("node", buffer, sizeof(buffer), NULL));