diff options
Diffstat (limited to 'vendor/golang.org/x/net/http2/transport.go')
-rw-r--r-- | vendor/golang.org/x/net/http2/transport.go | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go index c65f1a397..e6b321f4b 100644 --- a/vendor/golang.org/x/net/http2/transport.go +++ b/vendor/golang.org/x/net/http2/transport.go @@ -306,7 +306,26 @@ func (sew stickyErrWriter) Write(p []byte) (n int, err error) { return } -var ErrNoCachedConn = errors.New("http2: no cached connection was available") +// noCachedConnError is the concrete type of ErrNoCachedConn, which +// needs to be detected by net/http regardless of whether it's its +// bundled version (in h2_bundle.go with a rewritten type name) or +// from a user's x/net/http2. As such, as it has a unique method name +// (IsHTTP2NoCachedConnError) that net/http sniffs for via func +// isNoCachedConnError. +type noCachedConnError struct{} + +func (noCachedConnError) IsHTTP2NoCachedConnError() {} +func (noCachedConnError) Error() string { return "http2: no cached connection was available" } + +// isNoCachedConnError reports whether err is of type noCachedConnError +// or its equivalent renamed type in net/http2's h2_bundle.go. Both types +// may coexist in the same running program. +func isNoCachedConnError(err error) bool { + _, ok := err.(interface{ IsHTTP2NoCachedConnError() }) + return ok +} + +var ErrNoCachedConn error = noCachedConnError{} // RoundTripOpt are options for the Transport.RoundTripOpt method. type RoundTripOpt struct { |