blob: 14afa834962f097275bc0bab504fecaf7b1f1a50 [file] [log] [blame]
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !go1.16
// +build !go1.16
package jsonrpc2
import (
// errClosed is an error with the same string as net.ErrClosed,
// which was added in Go 1.16.
var errClosed = errors.New("use of closed network connection")
// isErrClosed reports whether err ends in the same string as errClosed.
func isErrClosed(err error) bool {
// As of Go 1.16, this could be 'errors.Is(err, net.ErrClosing)', but
// unfortunately gopls still requires compatiblity with
// (otherwise-unsupported) older Go versions.
// In the meantime, this error strirng has not changed on any supported Go
// version, and is not expected to change in the future.
// This is not ideal, but since the worst that could happen here is some
// superfluous logging, it is acceptable.
return strings.HasSuffix(err.Error(), "use of closed network connection")