boost::optional<data::event_data> next()
{
boost::optional<data::event_data> event = _events.next();
if (event)
{
if (const boost::optional<data::type> type = type_of(*event))
{
if (const auto t = trim_wrap_type(*type))
{
if (is_template_type(*t))
{
set_type(*event, *t);
}
else
{
// All of the below optionals are expected to hold a value
event = data::event_details<data::event_kind::non_template_type>{
{*t, *point_of_event(*event), *source_location(*event)},
*timestamp(*event)};
}
}
}
}
return event;
}
/**
* Performs code-generation for a lookup node.
*/
int generate_lookup(Pool *pool, FILE *out, AstLookup *p)
{
int rv;
/* If a tag satisfies the lookup, generate that: */
rv = generate_lookup_tag(pool, out, p);
if (rv == 1) return 1;
if (rv == 0) return 0;
/* If that didn't work, try the built-in transforms: */
if (generate_lookup_builtin(pool, out, p))
return 1;
source_location(stderr, p->name.p);
fprintf(stderr, "error: Could not find a transform named \"%s\".\n",
string_copy(pool, p->name).p);
return 0;
}