result.h

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/*
 * Copyright (C) 2023 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#pragma once
 
#include <string>
 
#include <android-base/result.h>
 
#include "util.h"
 
using android::base::ErrnoError;
using android::base::Error;
using android::base::Result;
using android::base::ResultError;
 
class FastbootError {
  public:
    enum Type { NETWORK_SERIAL_WRONG_PREFIX = 1, NETWORK_SERIAL_WRONG_ADDRESS = 2 };
 
    FastbootError(Type&& type) : type_(std::forward<Type>(type)) {}
 
    Type value() const { return type_; }
    operator Type() const { return value(); }
    std::string print() const { return ""; }
 
  private:
    Type type_;
};
 
template <typename T, typename U>
inline T Expect(Result<T, U> r) {
    if (r.ok()) {
        return r.value();
    }
 
    die(r.error().message());
 
    return r.value();
}