Function open_tensor_source

src/framework/assets/tensor_source.cpp:702–707

    const std::filesystem::path & index_path) {
    const auto root = engine::io::json::parse_file(index_path);
    const auto & object = root.require("weight_map").as_object();
    std::unordered_map<std::string, std::string> weight_map;
    weight_map.reserve(object.size());
    for (const auto & [name, value] : object) {
        weight_map.emplace(name, value.as_string());
    }
    if (weight_map.empty()) {
        throw std::runtime_error("indexed tensor source has an empty weight_map: " + index_path.string());
    }