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Handle references to missing instances gracefully

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This commit is contained in:
Thomas Krijnen
2024-08-23 09:07:29 +02:00
parent 4ba253a19b
commit 43becceb94
1 changed files with 32 additions and 32 deletions
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src/ifcparse/IfcParse.cpp
+32 -32
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@@ -1381,48 +1381,48 @@ void IfcFile::initialize_(IfcParse::IfcSpfStream* s) {
delete tokens;
auto resolve_instance = [this](auto inst, int ref, int refattr) {
IfcUtil::IfcBaseClass* ptr;
if constexpr (std::is_same_v<decltype(inst), int>) {
entity_by_id_t::const_iterator it = byid_.find(inst);
if (it == byid_.end()) {
Logger::Error("Instance reference #" + std::to_string(inst) + " used by instance #" + std::to_string(ref) + " at attribute index " + std::to_string(refattr) + " not found");
ptr = nullptr;
} else {
ptr = it->second;
}
} else {
ptr = inst;
}
return ptr;
};
for (auto& p : references_to_resolve) {
boost::apply_visitor([this, &p](auto& v) {
boost::apply_visitor([this, &resolve_instance, &p](auto& v) {
if constexpr (std::is_same_v<std::decay_t<decltype(v)>, reference_or_simple_type>) {
byid_[p.first.name_]->data().storage_.set(p.first.index_, boost::apply_visitor([this](auto inst) {
// @todo handle instance not found error
IfcUtil::IfcBaseClass* ptr;
if constexpr (std::is_same_v<decltype(inst), int>) {
ptr = this->instance_by_id(inst);
} else {
ptr = inst;
}
return ptr;
}, v));
auto inst = boost::apply_visitor([p, &resolve_instance](auto x) { return resolve_instance(x, p.first.name_, p.first.index_); }, v);
if (inst) {
byid_[p.first.name_]->data().storage_.set(p.first.index_, inst);
}
} else if constexpr (std::is_same_v<std::decay_t<decltype(v)>, std::vector<reference_or_simple_type>>) {
aggregate_of_instance::ptr instances(new aggregate_of_instance);
instances->reserve(v.size());
for (auto& p : v) {
instances->push(boost::apply_visitor([this](auto inst) {
IfcUtil::IfcBaseClass* ptr;
if constexpr (std::is_same_v<decltype(inst), int>) {
ptr = this->instance_by_id(inst);
} else {
ptr = inst;
}
return ptr;
}, p));
for (auto& vi : v) {
auto inst = boost::apply_visitor([p, &resolve_instance](auto x) { return resolve_instance(x, p.first.name_, p.first.index_); }, vi);
if (inst) {
instances->push(inst);
}
}
byid_[p.first.name_]->data().storage_.set(p.first.index_, instances);
} else if constexpr (std::is_same_v<std::decay_t<decltype(v)>, std::vector<std::vector<reference_or_simple_type>>>) {
aggregate_of_aggregate_of_instance::ptr instances(new aggregate_of_aggregate_of_instance);
for (auto& ps : v) {
for (auto& vi : v) {
std::vector<IfcUtil::IfcBaseClass*> inner;
for (auto& p : ps) {
inner.push_back(boost::apply_visitor([this](auto inst) {
IfcUtil::IfcBaseClass* ptr;
if constexpr (std::is_same_v<decltype(inst), int>) {
ptr = this->instance_by_id(inst);
} else {
ptr = inst;
}
return ptr;
}, p));
for (auto& vii : vi) {
auto inst = boost::apply_visitor([p, &resolve_instance](auto x) { return resolve_instance(x, p.first.name_, p.first.index_); }, vii);
if (inst) {
inner.push_back(inst);
}
}
instances->push(inner);
}