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Address quadratic inverse handling

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This commit is contained in:
Thomas Krijnen
2026-08-28 10:37:19 +02:00
parent 5352d72815
commit 4a81f72f32
2 changed files with 149 additions and 2 deletions
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src/ifcparse/tests/test_ifcopenshell_parse.cpp
+51
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@@ -45,3 +45,54 @@ TEST_CASE("Bypassed entity types include their subtypes", "[ifcparse]") {
CHECK(file.instances_by_type("IfcRepresentationItem").empty());
CHECK(file.instances_by_type("IfcCartesianPoint").empty());
}
TEST_CASE("Aggregate inverse updates preserve reference multiplicity", "[ifcparse]") {
ifcopenshell::file file(ifcopenshell::schema_by_name("IFC4"));
const auto* segment_declaration = file.schema()->declaration_by_name("IfcCompositeCurveSegment");
auto curve = file.create(file.schema()->declaration_by_name("IfcCompositeCurve"));
auto segment_a = file.create(segment_declaration);
auto segment_b = file.create(segment_declaration);
auto segment_c = file.create(segment_declaration);
auto segment_d = file.create(segment_declaration);
const auto inverse_count = [&file](const express::base& instance) {
return file.instances_by_reference(instance.id()).size();
};
curve.set_attribute_value(0, std::vector<express::base>{segment_a, segment_a, segment_b, segment_c});
CHECK(inverse_count(segment_a) == 2);
CHECK(inverse_count(segment_b) == 1);
CHECK(inverse_count(segment_c) == 1);
CHECK(inverse_count(segment_d) == 0);
curve.set_attribute_value(0, std::vector<express::base>{segment_a, segment_a, segment_b, segment_c, segment_d});
CHECK(inverse_count(segment_a) == 2);
CHECK(inverse_count(segment_b) == 1);
CHECK(inverse_count(segment_c) == 1);
CHECK(inverse_count(segment_d) == 1);
curve.set_attribute_value(0, std::vector<express::base>{segment_a, segment_a, segment_b, segment_c});
CHECK(inverse_count(segment_a) == 2);
CHECK(inverse_count(segment_b) == 1);
CHECK(inverse_count(segment_c) == 1);
CHECK(inverse_count(segment_d) == 0);
const std::vector<express::base> reordered{segment_c, segment_a, segment_b, segment_a};
curve.set_attribute_value(0, reordered);
CHECK((std::vector<express::base>)curve.get_attribute_value(0) == reordered);
CHECK(inverse_count(segment_a) == 2);
CHECK(inverse_count(segment_b) == 1);
CHECK(inverse_count(segment_c) == 1);
CHECK(inverse_count(segment_d) == 0);
curve.set_attribute_value(0, std::vector<express::base>{segment_a, segment_b, segment_b, segment_d});
CHECK(inverse_count(segment_a) == 1);
CHECK(inverse_count(segment_b) == 2);
CHECK(inverse_count(segment_c) == 0);
CHECK(inverse_count(segment_d) == 1);
curve.set_attribute_value(0, std::vector<express::base>{segment_c, segment_c, segment_d});
CHECK(inverse_count(segment_a) == 0);
CHECK(inverse_count(segment_b) == 0);
CHECK(inverse_count(segment_c) == 2);
CHECK(inverse_count(segment_d) == 1);
}