Method CopyOnImportExternal

src/App/PropertyExpressionEngine.cpp:1030–1060

}

Property* PropertyExpressionEngine::CopyOnImportExternal(
    const std::map<std::string, std::string>& nameMap) const
{
    std::unique_ptr<PropertyExpressionEngine> engine;
    for (auto it = expressions.begin(); it != expressions.end(); ++it) {
#ifdef BOOST_NO_CXX11_SMART_PTR
        std::shared_ptr<Expression> expr(it->second.expression->importSubNames(nameMap).release());
#else
        std::shared_ptr<Expression> expr(it->second.expression->importSubNames(nameMap));
#endif
        if (!expr && !engine) {
            continue;
        }
        if (!engine) {
            engine = std::make_unique<PropertyExpressionEngine>();
            for (auto it2 = expressions.begin(); it2 != it; ++it2) {
                engine->expressions[it2->first] =
                    ExpressionInfo(std::shared_ptr<Expression>(it2->second.expression->copy()));
            }
        }
        else if (!expr) {
            expr = it->second.expression;
        }
        engine->expressions[it->first] = ExpressionInfo(expr);
    }
    if (!engine) {
        return nullptr;
    }
    engine->validator = validator;
    return engine.release();
}

Property* PropertyExpressionEngine::CopyOnLabelChange(App::DocumentObject* obj,
                                                      const std::string& ref,