Class Flags

crates/c-api/include/wasmtime/component/val.hh:382–418

Class representing a component model `flags` value.

/// Class representing a component model `flags` value.
class Flags {
  friend class Val;

  VAL_REPR(Flags, wasmtime_component_valflags_t);

  static void transfer(Raw &&from, Raw &to) {
    to = from;
    from.size = 0;
    from.data = nullptr;
  }

  void copy(const Raw &other) {
    wasmtime_component_valflags_copy(&raw, &other);
  }

  void destroy() { wasmtime_component_valflags_delete(&raw); }

public:
  /// Creates a new flags value from the provided flags.
  Flags(std::vector<Flag> flags) {
    wasmtime_component_valflags_new_uninit(&raw, flags.size());
    auto dst = raw.data;
    for (auto &&val : flags)
      Flag::transfer(std::move(val.raw), *dst++);
  }

  /// \brief Returns the number of flags.
  size_t size() const { return raw.size; }

  /// \brief Returns an iterator to the beginning of the flags.
  const Flag *begin() const { return reinterpret_cast<const Flag *>(raw.data); }

  /// \brief Returns an iterator to the end of the flags.
  const Flag *end() const {
    return reinterpret_cast<const Flag *>(raw.data + raw.size);
  }
};

/// \brief Class representing an entry in a map value.
class MapEntry {