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Try some things: (a) fewer allocations - parse context pool; lexer string pool (b) SWAR process multiple chars at once in keywords/enums/strs/stc.

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This commit is contained in:
Thomas Krijnen
2026-03-27 20:45:13 +01:00
parent fe6e9d86ae
commit 603cedc487
14 changed files with 1266 additions and 860 deletions
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src/ifcparse/IfcSchema.h
+12 -8
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@@ -28,6 +28,7 @@
#include <iterator>
#include <string>
#include <vector>
#include <optional>
// Forward declarations
class InstanceData;
@@ -297,6 +298,7 @@ class IFC_PARSE_API entity : public declaration {
std::vector<const entity*> subtypes_;
std::vector<const attribute*> attributes_;
mutable std::optional<std::vector<const attribute*>> all_attributes_;
std::vector<bool> derived_;
std::vector<const inverse_attribute*> inverse_attributes_;
@@ -354,15 +356,17 @@ class IFC_PARSE_API entity : public declaration {
const std::vector<const attribute*>& attributes() const { return attributes_; }
const std::vector<bool>& derived() const { return derived_; }
const std::vector<const attribute*> all_attributes() const {
std::vector<const attribute*> attrs;
attrs.reserve(derived_.size());
if (supertype_ != nullptr) {
const std::vector<const attribute*> supertype_attrs = supertype_->all_attributes();
std::copy(supertype_attrs.begin(), supertype_attrs.end(), std::back_inserter(attrs));
const std::vector<const attribute*>& all_attributes() const {
if (!all_attributes_) {
auto& attrs = all_attributes_.emplace();
attrs.reserve(derived_.size());
if (supertype_ != nullptr) {
const std::vector<const attribute*> supertype_attrs = supertype_->all_attributes();
std::copy(supertype_attrs.begin(), supertype_attrs.end(), std::back_inserter(attrs));
}
std::copy(attributes_.begin(), attributes_.end(), std::back_inserter(attrs));
}
std::copy(attributes_.begin(), attributes_.end(), std::back_inserter(attrs));
return attrs;
return *all_attributes_;
}
const std::vector<const inverse_attribute*> all_inverse_attributes() const {