1// Copyright 2018 The Go Authors. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package protocol 16 17import ( 18 "context" 19) 20 21type contextKey int 22 23const ( 24 clientKey = contextKey(iota) 25) 26 27func WithClient(ctx context.Context, client Client) context.Context { 28 return context.WithValue(ctx, clientKey, client) 29} 30