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path: root/runtime/commonMain/src/kotlinx/serialization/protobuf/ProtoTypes.kt
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/*
 * Copyright 2018 JetBrains s.r.o.
 *
 * 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.
 */

package kotlinx.serialization.protobuf

import kotlinx.serialization.*

public enum class ProtoNumberType {
    DEFAULT, SIGNED, FIXED
}

@SerialInfo
@Target(AnnotationTarget.PROPERTY)
public annotation class ProtoType(val type: ProtoNumberType)

internal typealias ProtoDesc = Pair<Int, ProtoNumberType>

internal fun extractParameters(desc: SerialDescriptor, index: Int): ProtoDesc {
    val idx = getSerialId(desc, index) ?: index + 1
    val format = desc.findAnnotation<ProtoType>(index)?.type
            ?: ProtoNumberType.DEFAULT
    return idx to format
}


public class ProtobufDecodingException(message: String) : SerializationException(message)