/* Store parameter info for fn in \c pinfos and return the dependencies of the resulting type
(if compute_resulting_deps == true). */
static list<unsigned> get_core(type_context & ctx,
expr const & fn, buffer<param_info> & pinfos,
unsigned max_args, bool compute_resulting_deps) {
expr type = ctx.relaxed_try_to_pi(ctx.infer(fn));
type_context::tmp_locals locals(ctx);
unsigned i = 0;
while (is_pi(type)) {
if (i == max_args)
break;
expr local = locals.push_local_from_binding(type);
expr local_type = ctx.infer(local);
expr new_type = ctx.relaxed_try_to_pi(instantiate(binding_body(type), local));
bool is_prop = ctx.is_prop(local_type);
bool is_dep = !closed(binding_body(type));
pinfos.emplace_back(binding_info(type).is_implicit(),
binding_info(type).is_inst_implicit(),
is_prop, is_dep, collect_deps(local_type, locals.as_buffer()));
type = new_type;
i++;
}
if (compute_resulting_deps)
return collect_deps(type, locals.as_buffer());
else
return list<unsigned>();
}
/* Store subsingleton parameter info for fn in \c ssinfos */
static void get_ss_core(type_context & ctx, expr const & fn, buffer<ss_param_info> & ssinfos,
unsigned max_args) {
expr type = ctx.relaxed_try_to_pi(ctx.infer(fn));
type_context::tmp_locals locals(ctx);
unsigned i = 0;
while (is_pi(type)) {
if (i == max_args)
break;
expr local = locals.push_local_from_binding(type);
expr local_type = ctx.infer(local);
expr new_type = ctx.relaxed_try_to_pi(instantiate(binding_body(type), local));
bool spec = false;
bool is_prop = ctx.is_prop(local_type);
bool is_sub = is_prop;
if (!is_sub) {
// TODO(Leo): check if the following line is a performance bottleneck.
is_sub = static_cast<bool>(ctx.mk_subsingleton_instance(local_type));
}
ssinfos.emplace_back(spec, is_sub);
type = new_type;
i++;
}
}
