github.com/cockroachdb/cockroachdb-parser@v0.23.3-0.20240213214944-911057d40c9a/pkg/util/nocopy.go (about)

     1  // Copyright 2016 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  package util
    12  
    13  // NoCopy may be embedded into structs which must not be copied
    14  // after the first use.
    15  //
    16  // See https://github.com/golang/go/issues/8005#issuecomment-190753527
    17  // for details.
    18  type NoCopy struct{}
    19  
    20  // Silence unused warnings.
    21  var _ = NoCopy{}
    22  
    23  // Lock is a no-op used by -copylocks checker from `go vet`.
    24  func (*NoCopy) Lock() {}
    25  
    26  // Unlock is a no-op used by -copylocks checker from `go vet`.
    27  func (*NoCopy) Unlock() {}