storage_backend.hpp

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#pragma once

 
#include <concepts>
 
#include <wowlib/core/buffer.hpp>
#include <wowlib/core/client_version.hpp>
#include <wowlib/core/error.hpp>
#include <wowlib/core/file_key.hpp>
 
namespace wowlib::fs {
  template <typename B> concept StorageBackend = std::movable<B> && requires(B b, const FileKey& key) {
    { b.readFile(key) } -> std::same_as<Result<FileBuffer>>; { b.exists(key) } -> std::same_as<bool>; {
      B::kind()
    } -> std::same_as<StorageKind>;
  };
}