MemorySegment resultPtr = (MemorySegment) {{ ffi_handle }}.invoke({{ args_joined }});
{{ named_frees }} if (resultPtr.equals(MemorySegment.NULL)) {
checkLastFfiError();
return {{ empty_return }};
}
try {
MemorySegment jsonPtr = (MemorySegment) {{ to_json }}.invoke(resultPtr);
if (jsonPtr.equals(MemorySegment.NULL)) {
checkLastFfiError();
throw new {{ exception_class }}("{{ method_name }}: failed to serialize response", (Throwable) null);
}
String json = jsonPtr.reinterpret(Long.MAX_VALUE).getString(0);
NativeLib.{{ prefix_upper }}_FREE_STRING.invoke(jsonPtr);
{{ success_return }}
} finally {
{{ ret_free }}.invoke(resultPtr);
}