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Multiplatform runtime library to support generated code

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/*
 * Copyright 2021 Square Inc.
 *
 * 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 com.squareup.wire.internal

import com.squareup.wire.FieldEncoding
import com.squareup.wire.Syntax
import kotlin.reflect.KClass
import okio.ByteString

/**
 * A representation of a message and its builder class. Typically these are generated subtypes of
 * [com.squareup.wire.Message] and [com.squareup.wire.Message.Builder].
 */
interface MessageBinding {
  val messageType: KClass

  val fields: Map>

  val typeUrl: String?

  val syntax: Syntax

  fun unknownFields(message: M): ByteString

  fun getCachedSerializedSize(message: M): Int

  fun setCachedSerializedSize(message: M, size: Int)

  fun newBuilder(): B

  fun build(builder: B): M

  fun addUnknownField(builder: B, tag: Int, fieldEncoding: FieldEncoding, value: Any?)

  fun clearUnknownFields(builder: B)
}