1 //go:build grpcnotrace 2 3 /* 4 * 5 * Copyright 2024 gRPC authors. 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 */ 20 21 package grpc 22 23 // grpcnotrace can be used to avoid importing golang.org/x/net/trace, which in 24 // turn enables binaries using gRPC-Go for dead code elimination, which can 25 // yield 10-15% improvements in binary size when tracing is not needed. 26 27 import ( 28 "context" 29 "fmt" 30 ) 31 32 type notrace struct{} 33 34 func (notrace) LazyLog(x fmt.Stringer, sensitive bool) {} 35 func (notrace) LazyPrintf(format string, a ...any) {} 36 func (notrace) SetError() {} 37 func (notrace) SetRecycler(f func(any)) {} 38 func (notrace) SetTraceInfo(traceID, spanID uint64) {} 39 func (notrace) SetMaxEvents(m int) {} 40 func (notrace) Finish() {} 41 42 func newTrace(family, title string) traceLog { 43 return notrace{} 44 } 45 46 func newTraceContext(ctx context.Context, tr traceLog) context.Context { 47 return ctx 48 } 49 50 func newTraceEventLog(family, title string) traceEventLog { 51 return nil 52 } 53