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Implement streaming scan through file and use in rocksdb serializer and python

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This commit is contained in:
Thomas Krijnen
2025-08-25 12:45:10 +02:00
parent 5a597d1a84
commit d2c7c1532c
16 changed files with 1410 additions and 778 deletions
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src/ifcparse/parse_ifcxml.cpp
+6 -6
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@@ -446,14 +446,14 @@ static void start_element(void* user, const xmlChar* tag, const xmlChar** attrs)
// Create an attribute value from an instance. Potentially NULL in case it is a
// forward reference to an instance not yet encountered.
auto instance_to_attribute = [&state](const boost::variant<std::string, IfcUtil::IfcBaseClass*>& inst_or_ref, size_t attribute_index, IfcUtil::IfcBaseClass*& inst) {
if (inst_or_ref.which() == 0) {
auto instance_to_attribute = [&state](const std::variant<std::string, IfcUtil::IfcBaseClass*>& inst_or_ref, size_t attribute_index, IfcUtil::IfcBaseClass*& inst) {
if (inst_or_ref.index() == 0) {
inst = nullptr;
// This attribute is NULL initially and after parsing the complete
// file populated in a subsequent step.
state->forward_references.push_back(std::make_tuple(inst->as<IfcUtil::IfcBaseEntity>(), attribute_index, boost::get<std::string>(inst_or_ref)));
state->forward_references.push_back(std::make_tuple(inst->as<IfcUtil::IfcBaseEntity>(), attribute_index, std::get<std::string>(inst_or_ref)));
} else {
inst = boost::get<IfcUtil::IfcBaseClass*>(inst_or_ref);
inst = std::get<IfcUtil::IfcBaseClass*>(inst_or_ref);
inst->set_attribute_value(attribute_index, inst);
}
};
@@ -461,7 +461,7 @@ static void start_element(void* user, const xmlChar* tag, const xmlChar** attrs)
// Create or reference an instance from the file and set attributes based on XML attributes.
auto create_instance = [&state, &attributes](const IfcParse::declaration* decl) {
boost::optional<std::string> id;
boost::variant<std::string, IfcUtil::IfcBaseClass*> rv;
std::variant<std::string, IfcUtil::IfcBaseClass*> rv;
for (auto& pair : attributes) {
if (pair.first == "id" || pair.first == "href" || pair.first == "ref") {
@@ -619,7 +619,7 @@ static void start_element(void* user, const xmlChar* tag, const xmlChar** attrs)
instance_to_attribute(inst_or_reference, idx, inst);
// @todo
state->stack.back().inst();
state->stack.push_back(stack_node::instance(id, boost::get<IfcUtil::IfcBaseClass*>(inst_or_reference)));
state->stack.push_back(stack_node::instance(id, std::get<IfcUtil::IfcBaseClass*>(inst_or_reference)));
} else if (attribute_type->as_named_type()->declared_type()->as_select_type() != nullptr) {
// Select types cause an additional indirection, so the current stack node is simply repeated
state->stack.push_back(stack_node::select(state->stack.back().inst(), idx));