chromium/third_party/perfetto/include/perfetto/protozero/field.h

/*
 * Copyright (C) 2019 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.
 */

#ifndef INCLUDE_PERFETTO_PROTOZERO_FIELD_H_
#define INCLUDE_PERFETTO_PROTOZERO_FIELD_H_

#include <stdint.h>

#include <string>
#include <vector>

#include "perfetto/base/logging.h"
#include "perfetto/protozero/contiguous_memory_range.h"
#include "perfetto/protozero/proto_utils.h"

namespace protozero {

struct ConstBytes { … };

struct ConstChars { … };

// A protobuf field decoded by the protozero proto decoders. It exposes
// convenience accessors with minimal debug checks.
// This class is used both by the iterator-based ProtoDecoder and by the
// one-shot TypedProtoDecoder.
// If the field is not valid the accessors consistently return zero-integers or
// null strings.
class Field { … };
// The Field struct is used in a lot of perf-sensitive contexts.
static_assert …;

}  // namespace protozero

#endif  // INCLUDE_PERFETTO_PROTOZERO_FIELD_H_