Method enumv

src/custom/impl/tensor.cpp:124–136

}

DeviceEnum Device::enumv(void) const {
    mgb_assert(
            DeviceImplRef(m_impl.get()).valid(),
            "cannot get the enum value of invalid device");

    auto builtin_device_type = DeviceImplRef(m_impl.get()).device_type();
    auto&& dev_benum2cenum = DeviceMapper::inst().dev_benum2cenum;
    auto iter = dev_benum2cenum.find(builtin_device_type);
    mgb_assert(
            iter != dev_benum2cenum.end(), "invalid device type %s\n",
            DeviceImplRef(m_impl.get()).to_string().c_str());
    return iter->second;
}

bool Device::is_legal(const std::string& device_type) {
    auto&& dev_cstr2bstr = DeviceMapper::inst().dev_cstr2bstr;