void remove_unused_fields(Scope& scope,
const std::vector<std::string>& remove_members) {
std::vector<DexField*> moveable_fields;
std::vector<DexClass*> smallscope;
uint32_t aflags = ACC_STATIC | ACC_FINAL;
for (auto clazz : scope) {
bool found = can_delete(clazz);
if (!found) {
auto name = clazz->get_name()->c_str();
for (const auto& name_prefix : remove_members) {
if (strstr(name, name_prefix.c_str()) != nullptr) {
found = true;
break;
}
}
if (!found) {
TRACE(FINALINLINE, 2, "Cannot delete: %s\n", SHOW(clazz));
continue;
}
}
auto sfields = clazz->get_sfields();
for (auto sfield : sfields) {
if ((sfield->get_access() & aflags) != aflags) continue;
auto value = sfield->get_static_value();
if (value == nullptr && !is_primitive(sfield->get_type())) continue;
if (!found && !can_delete(sfield)) continue;
moveable_fields.push_back(sfield);
smallscope.push_back(clazz);
}
}
sort_unique(smallscope);
std::unordered_set<DexField*> field_target =
get_field_target(scope, moveable_fields);
std::unordered_set<DexField*> dead_fields;
for (auto field : moveable_fields) {
if (field_target.count(field) == 0) {
dead_fields.insert(field);
}
}
TRACE(FINALINLINE, 1,
"Removable fields %lu/%lu\n",
dead_fields.size(),
moveable_fields.size());
TRACE(FINALINLINE, 1, "Unhandled inline %ld\n", unhandled_inline);
for (auto clazz : smallscope) {
auto& sfields = clazz->get_sfields();
auto iter = sfields.begin();
while (iter != sfields.end()) {
auto todel = iter++;
if (dead_fields.count(*todel) > 0) {
sfields.erase(todel);
}
}
}
}
void remove_unused_fields(Scope& scope,
const std::unordered_set<DexType*>& keep_annos,
const std::unordered_set<DexField*>& keep_members) {
std::vector<DexField*> moveable_fields;
std::vector<DexClass*> smallscope;
uint32_t aflags = ACC_STATIC | ACC_FINAL;
for (auto clazz : scope) {
if (!can_delete(clazz)) {
continue;
}
auto sfields = clazz->get_sfields();
for (auto sfield : sfields) {
if ((sfield->get_access() & aflags) != aflags) continue;
auto value = sfield->get_static_value();
if (value == nullptr && !is_primitive(sfield->get_type())) continue;
if (is_kept_by_annotation(sfield, keep_annos)) continue;
if (is_kept_member(sfield, keep_members)) continue;
moveable_fields.push_back(sfield);
smallscope.push_back(clazz);
}
}
sort_unique(smallscope);
std::unordered_set<DexField*> field_target =
get_field_target(scope, moveable_fields);
std::unordered_set<DexField*> dead_fields;
for (auto field : moveable_fields) {
if (field_target.count(field) == 0) {
dead_fields.insert(field);
}
}
TRACE(FINALINLINE, 1,
"Removable fields %lu/%lu\n",
dead_fields.size(),
moveable_fields.size());
TRACE(FINALINLINE, 1, "Unhandled inline %ld\n", unhandled_inline);
for (auto clazz : smallscope) {
auto& sfields = clazz->get_sfields();
auto iter = sfields.begin();
while (iter != sfields.end()) {
auto todel = iter++;
if (dead_fields.count(*todel) > 0) {
sfields.erase(todel);
}
}
}
}
